CN217374451U

CN217374451U - Braking device and vehicle

Info

Publication number: CN217374451U
Application number: CN202220709361.3U
Authority: CN
Inventors: 危炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-09-06
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a braking device and vehicle, including hydraulic pump and control valve, the hydraulic pump includes drive shaft, pump body and inlet and the liquid outlet rather than being linked together, the control valve with the liquid outlet is linked together, the drive shaft with pump body transmission is connected, the drive shaft is used for driving the pump body works, the control valve is used for controlling the flow that liquid medium discharged from the liquid outlet, still be provided with the mounting hole on the hydraulic pump, the mounting hole runs through the pump body and/or the drive shaft, the mounting hole is used for making pump body cover establish and fix on the axle housing of axle, and the drive shaft is used for connecting the wheel hub of axle; the vehicle body, the chassis and the engine are connected with the chassis, and the braking device is connected with the chassis and the vehicle body; the braking device and the vehicle have the advantages of reasonable structure and simple and convenient use or maintenance.

Description

Braking device and vehicle

Technical Field

The utility model belongs to the technical field of vehicle braking equipment, concretely relates to arresting gear and vehicle.

Background

Brake devices, also known as brakes, are components of braking and decelerating systems installed on vehicles (such as passenger cars, freight cars, subways, trains, etc.) and function to decelerate or stop a running vehicle or to immobilize a stopped vehicle, and are considered important safety components of vehicles because the structure and performance of brake devices are directly related to the safety of the vehicle and the driver and passengers. The types of the brake device mainly include drum brake, disc (disc) brake, and the like, and further, the brake device implements brake control of a brake drum or a brake disc in an air pressure or hydraulic manner. However, the drum brake and disc (disc) brake devices of the prior art have certain disadvantages in use; although the drum brake has the advantage of strong braking force, the heat dissipation performance of the drum brake is relatively poor, and particularly, the drum brake is easy to carbonize when working for a long time, so that the braking force is reduced and even loses efficacy, namely, heat fading is caused; the sensitivity and the heat dissipation performance of the disc brake are relatively good, but the friction area between a brake pad and a brake disc of the disc brake is smaller than that of a drum brake, so the braking force of the disc brake is relatively small. Secondly, in the above-mentioned type of brake device, a consumable part such as a brake pad is inevitably used, and particularly, since the brake pad of the drum brake is built in the brake drum, it is relatively difficult to check and know the consumption of the brake pad in real time, which brings certain inconvenience to the reliable use or maintenance of the brake device.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a braking device and a vehicle with reasonable structure and easy and convenient use or maintenance.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

the utility model provides a braking device, includes hydraulic pump and control valve, hydraulic pump includes drive shaft, the pump body and rather than inlet and the liquid outlet that is linked together, the control valve with the liquid outlet is linked together, the drive shaft with pump body transmission is connected, the drive shaft is used for the drive the pump body is worked, makes liquid medium follow the inlet inhales and follows the liquid outlet is discharged, the control valve is used for controlling liquid medium and follows liquid outlet exhaust flow, still be provided with the mounting hole on the hydraulic pump, the mounting hole runs through the pump body and/or the drive shaft, the mounting hole is used for making pump body cover establishes and fixes on the axle housing of axle, just the drive shaft is used for connecting wheel hub.

As a further improvement of the brake device, the hydraulic pump is a plunger type hydraulic pump.

As right brake equipment's further improvement, the pump body includes casing, sloping cam plate and a plurality of plunger subassembly, be formed with the holding chamber in the casing, the inlet with the holding chamber is linked together, the plunger subassembly with the sloping cam plate all install in the holding intracavity, the plunger subassembly with the liquid outlet is linked together, just the plunger subassembly with the sloping cam plate transmission is connected, the sloping cam plate with drive shaft transmission is connected, the drive shaft is used for driving the sloping cam plate rotates and makes the sloping cam plate drive the plunger subassembly carries out work.

As a further improvement of the braking device, the plunger assemblies are arranged along the circumferential direction of the mounting hole.

As a further improvement of the braking device, the plunger assembly includes a plunger body, a plunger cylinder, a pump inlet, a check valve, and a pump outlet, the plunger cylinder is located in the accommodating chamber, the plunger cylinder is fixedly connected to the housing, the plunger body is slidably connected to the plunger cylinder, the plunger body is slidably connected to the swash plate, the pump inlet and the pump outlet are both communicated with the plunger cylinder, the pump inlet is located in the accommodating chamber, the pump outlet is communicated with the liquid outlet, the check valve is mounted on the pump outlet, the pump outlet is communicated with the liquid outlet, and the plunger assembly is configured to pump out the liquid medium located in the accommodating chamber from the pump outlet.

As a further improvement of the braking device, with respect to the axial direction of the hydraulic pump, a first connection end and a second connection end are respectively arranged at two ends of the hydraulic pump, the first connection end is arranged on the housing, the second connection end is arranged on the driving shaft, the first connection end is used for connecting an axle housing of an axle, and the second connection end is used for connecting a hub of the axle.

As a further improvement to the braking means, the pump outlet is connected in parallel with the liquid outlet.

As a further improvement of the braking device, the shell is further provided with an exhaust port, and the exhaust port is communicated with the accommodating cavity.

As a further improvement of the braking device, the braking device further comprises a liquid storage tank and a brake pedal mechanism, wherein the brake pedal mechanism is connected with the control valve, the brake pedal mechanism is used for controlling the opening degree of the control valve, the liquid inlet and the liquid outlet are communicated with the liquid storage tank, and the liquid storage tank is used for containing brake liquid.

A vehicle comprises a vehicle body, a chassis, an engine and the braking device, wherein the engine and the vehicle body are connected with the chassis, and the braking device is connected with the chassis and the vehicle body.

Compared with the prior art the beneficial effects of the utility model mainly appear: the input resistance of a driving shaft of the hydraulic pump is controlled by matching the hydraulic pump with the control valve, namely, the flow of a liquid outlet of the hydraulic pump is regulated by the control valve, so that the vehicle is braked; particularly, the pump body cover of hydraulic pump establishes and because of fixing on the axle, and the drive shaft of hydraulic pump then is connected with the wheel hub of axle, drives the drive shaft when the wheel rotates thereupon and rotates, can drive hydraulic pump and carry out work, makes liquid medium inhale from the inlet and flow from the liquid outlet, and further, after the flow of control valve reduction liquid outlet, because the incompressibility of liquid, the rotational resistance of drive shaft just can increase this moment, promptly, reduces the slew velocity of wheel in order to reach the purpose of braking. Because the consumption parts in the traditional braking system devices such as the brake pad and the like are eliminated, the convenience of the braking device and the use or maintenance of the vehicle is effectively improved.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic view of the overall structure of the front view direction of the braking device of the present invention;

FIG. 2 is a schematic view of the overall structure of the rear view direction of the braking device of the present invention;

FIG. 3 is a schematic cross-sectional view of the braking device of the present invention;

fig. 4 is an exploded view of the braking device of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and only describe the present invention, but not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention in order to facilitate understanding.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.

As shown in fig. 1-4, the embodiment provides a braking device, which includes a hydraulic pump 1 and a control valve 2, wherein the hydraulic pump 1 includes a driving shaft 3, a pump body 4, and a liquid inlet 5 and a liquid outlet 6 communicated therewith, the control valve 2 is communicated with the liquid outlet 6, the driving shaft 3 is in transmission connection with the pump body 4, that is, the driving shaft 3 is used to drive the pump body 4 to work, so that a liquid medium is sucked from the liquid inlet 5 and discharged from the liquid outlet 6, and a liquid medium discharged from the liquid outlet 6 is finally discharged through the control valve 2; further, the control valve 2 is used for controlling the flow rate of the liquid medium discharged from the liquid outlet 6, wherein the liquid medium may be hydraulic oil, water-based emulsion, or water. Further, the hydraulic pump 1 is further provided with a mounting hole 7, the mounting hole 7 penetrates through the pump body 4 and/or the driving shaft 3, the mounting hole 7 is used for enabling the pump body 4 to be sleeved and fixed on an axle housing of an axle, and the driving shaft 3 is used for being connected with a hub of a vehicle, or the driving shaft 3 is connected with the hub of the axle. The input resistance of the driving shaft 3 of the hydraulic pump 1 is controlled by the mutual matching of the hydraulic pump 1 and the control valve 2, namely, the flow of the liquid outlet 6 of the hydraulic pump 1 is adjusted by the control valve 2, so that the vehicle is braked. The installation holes 7 can ensure that the braking device can be smoothly installed under the condition of not changing the size or the space layout of the original axle main body; simultaneously, the mounting hole 7 that sets up also can make the drive shaft directly link with the wheel hub of axle, promptly, has effectively simplified arresting gear's component structure for arresting gear lightweight reduces arresting gear's manufacturing cost and process. Specifically, the pump body 4 of the hydraulic pump 1 is sleeved and fixed on the axle, and the driving shaft 3 of the hydraulic pump 1 is connected with the hub of the axle. When the wheels rotate, the driving shaft 3 is driven to rotate along with the wheels, and the hydraulic pump 1 can be driven to work by the forward or backward movement (forward rotation or backward rotation of the wheels) of the vehicle, so that the liquid medium is sucked from the liquid inlet 5 and flows out from the liquid outlet 6; further, when the control valve 2 reduces the flow rate of the liquid outlet 6, the rotation resistance of the driving shaft 3 is increased due to the incompressibility of the liquid, that is, the rotation speed of the wheel is reduced to achieve the purpose of braking. Meanwhile, because the consumption parts in the traditional braking system devices such as the brake pad and the like are eliminated, the use or maintenance convenience of the braking device and the vehicle is effectively improved.

As shown in fig. 3-4, in the preferred embodiment, the hydraulic pump 1 is a plunger-type hydraulic pump 1; further, the pump body 4 includes casing 8, sloping cam plate 9 and a plurality of plunger subassembly, is formed with holding chamber 10 in the casing 8, and inlet 5 is linked together with holding chamber 10, and plunger subassembly and sloping cam plate 9 are all installed in holding chamber 10, and the plunger subassembly is linked together with liquid outlet 6, and the plunger subassembly is connected with the transmission of sloping cam plate 9, and sloping cam plate 9 is connected with the transmission of drive shaft 3, and drive shaft 3 is used for driving sloping cam plate 9 to rotate and makes sloping cam plate 9 drive plunger subassembly carry out work. Wherein, the plunger assemblies are arranged on the shell 8 at intervals along the circumferential direction of the mounting hole 7; further, the plunger subassembly includes plunger body 11, plunger cylinder 12, pump inlet 13, check valve 14 and pump outlet 15, and plunger cylinder 12 is located accommodation chamber 10, and

plunger cylinder

12 and 8 fixed connection on the casing,

plunger cylinder

12 and 8 integrated into one piece in this embodiment, plunger body 11 and plunger cylinder 12 sliding connection, promptly, plunger body 11 can carry out piston motion for plunger cylinder 12, and plunger body 11 is connected with sloping cam plate 9 transmission. Specifically, in the horizontal direction, the end face of the swash plate forms an included angle or an inclination angle with the horizontal line, the plurality of plunger bodies 11 are annularly arranged along the circumferential direction of the swash plate 9, the swash plate 9 is driven to move when the drive shaft 3 rotates, at this time, the swash plate forms a reciprocating swing angle relative to the plunger bodies 11, and then the plunger bodies 11 reciprocate relative to the plunger cylinders 12. The pump inlet 13 and the pump outlet 15 are both communicated with the plunger cylinder 12, the pump inlet 13 is positioned in the cavity, the pump outlet 15 is communicated with the liquid outlet 6, the check valve 14 is installed on the pump outlet 15, the pump outlet 15 is communicated with the liquid outlet 6, and the plunger assembly is used for pumping out the liquid medium positioned in the accommodating cavity 10 from the pump outlet 15. Specifically, when the plunger body 11 is relatively far away from the plunger 12, the liquid medium in the accommodating chamber 10 enters the plunger cylinder 12 from the pump inlet 15, and further, when the plunger body 11 enters a compression stroke, the liquid medium in the plunger cylinder 12 is discharged from the pump outlet 15, and meanwhile, due to the one-way valve 14 mounted on the pump outlet 15, the liquid medium discharged from the pump outlet 15 cannot flow back, that is, the liquid medium can only be discharged from the liquid outlet 6 and through the control valve 2. Further, the pump outlet 15 is connected in parallel with the liquid outlet 6, that is, there are a plurality of plunger assemblies, that is, there are a plurality of pump outlets 15, and in an extreme case, when some plunger assemblies fail, other plunger assemblies which can normally work can still pump out the liquid medium and finally discharge the liquid medium from the liquid outlet 6; the number of the plunger assemblies can be flexibly adjusted according to the braking force required by the vehicle. Further, the housing 8 is further provided with an air outlet 18, the air outlet 18 is communicated with the accommodating cavity 10, and the air outlet is used for exhausting air in the accommodating cavity 10, that is, the air belongs to a compressible medium, so that the brake device needs to exhaust the air when being installed, and after the air in the accommodating cavity 10 is exhausted, the air outlet 18 is sealed.

As shown in fig. 1-2, in the preferred embodiment, the two ends of the hydraulic pump 1 are respectively provided with a first connecting end 16 and a second connecting end 17 with respect to the axial direction of the hydraulic pump 1, the first connecting end is arranged on the housing 8, the second connecting end 17 is arranged on the drive shaft 3, the first connecting end 16 is used for connecting an axle housing of an axle, and the second connecting end 17 is used for connecting a wheel hub of the axle.

In a preferred embodiment, the brake pedal device further comprises a liquid storage tank and a brake pedal mechanism, wherein the brake pedal mechanism is connected with the control valve 2 and used for controlling the opening degree of the control valve 2, the liquid inlet 5 and the liquid outlet 6 are both communicated with the liquid storage tank, and the liquid storage tank is used for containing a liquid medium (brake fluid). Specifically, the liquid medium (brake fluid) is sucked from the fluid pump inlet port 5, discharged from the fluid outlet port 6, and returned to the reservoir tank through the control valve 2, that is, the liquid medium is circulated during the operation of the brake device.

The embodiment also provides a vehicle which comprises a vehicle body, a chassis, an engine and the braking device, wherein the engine and the vehicle body are connected with the chassis, and the braking device is connected with the chassis and the vehicle body.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature in direct contact with the first or second feature, or the first and second features may be in indirect contact via intermediate media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims

1. A brake apparatus, characterized in that: including hydraulic pump and control valve, the hydraulic pump includes drive shaft, the pump body and rather than inlet and the liquid outlet that is linked together, the control valve with the liquid outlet is linked together, the drive shaft with pump body transmission connects, the drive shaft is used for the drive the pump body is worked, makes liquid medium follow the inlet inhales and follows the liquid outlet is discharged, the control valve is used for controlling liquid medium and follows liquid outlet exhaust flow, still be provided with the mounting hole on the hydraulic pump, the mounting hole runs through the pump body and/or the drive shaft, the mounting hole is used for making pump body cover is established and is fixed on the axle housing of axle, just the drive shaft is used for connecting wheel hub.

2. The braking apparatus according to claim 1, characterized in that: the hydraulic pump is a plunger type hydraulic pump.

3. A braking apparatus according to claim 1 or 2, characterized in that: the pump body includes casing, sloping cam plate and a plurality of plunger subassembly, be formed with the holding chamber in the casing, the inlet with the holding chamber is linked together, the plunger subassembly with the sloping cam plate all install in the holding intracavity, the plunger subassembly with the liquid outlet is linked together, just the plunger subassembly with the sloping cam plate transmission is connected, the sloping cam plate with the drive shaft transmission is connected, the drive shaft is used for the drive the sloping cam plate rotates and makes the sloping cam plate drive the plunger subassembly carries out work.

4. A braking apparatus according to claim 3, characterized in that: the plunger assemblies are arranged along the circumferential direction of the mounting hole.

5. A braking apparatus according to claim 3, characterized in that: the plunger assembly comprises a plunger body, a plunger cylinder, a pump inlet, a one-way valve and a pump outlet, the plunger cylinder is located in the accommodating cavity, the plunger cylinder is fixedly connected with the casing, the plunger body is in sliding connection with the plunger cylinder, the plunger body is in transmission connection with the swash plate, the pump inlet is communicated with the pump outlet, the pump inlet is located in the accommodating cavity, the pump outlet is communicated with the liquid outlet, the one-way valve is mounted on the pump outlet, the pump outlet is communicated with the liquid outlet, and the plunger assembly is used for pumping out liquid media in the accommodating cavity from the pump outlet.

6. A braking apparatus according to claim 3, characterized in that: relative to the axial direction of the hydraulic pump, a first connecting end and a second connecting end are respectively arranged at two ends of the hydraulic pump, the first connecting end is arranged on the shell, the second connecting end is arranged on the driving shaft, the first connecting end is used for connecting an axle housing of an axle, and the second connecting end is used for connecting a hub of the axle.

7. The braking apparatus according to claim 5, characterized in that: the pump outlet is connected with the liquid outlet in parallel.

8. A braking apparatus according to claim 3, characterized in that: the shell is also provided with an exhaust port, and the exhaust port is communicated with the accommodating cavity.

9. The braking apparatus according to claim 1, characterized in that: still including liquid reserve tank and brake pedal mechanism, brake pedal mechanism with the control valve is connected, brake pedal mechanism is used for control the aperture of control valve, the inlet with the liquid outlet all with the liquid reserve tank is linked together, the liquid reserve tank is used for holding brake fluid.

10. A vehicle, characterized in that: comprising a body, a chassis, an engine, and a braking device according to any one of claims 1-9, both the engine and the body being connected to the chassis, the braking device being connected to the chassis and to the body.