CN107351834B - Balancer hydraulic distribution valve and braking system - Google Patents
Balancer hydraulic distribution valve and braking system Download PDFInfo
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- CN107351834B CN107351834B CN201710752659.6A CN201710752659A CN107351834B CN 107351834 B CN107351834 B CN 107351834B CN 201710752659 A CN201710752659 A CN 201710752659A CN 107351834 B CN107351834 B CN 107351834B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
- B60T15/16—Arrangements enabling systems to be controlled from two or more positions
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Arrangements (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The invention relates to the field of vehicles and discloses a balancer hydraulic distribution valve and a braking system. The balancer hydraulic distribution valve comprises a valve body, a valve rod and a pulling assembly, wherein the pulling assembly can simultaneously act on the valve rod and an external device and distribute force to the valve rod and the external device. The force acting on the valve stem may be transferred hydraulically to the second passage of the valve body, from which it is output hydraulically. The balancer hydraulic pressure distribution valve is capable of performing power input from the first passage. The structure is simple, the distribution of the force from the pulling assembly is realized stably, and the input-output mode can be adjusted. The invention discloses two braking systems, which both use the hydraulic distribution valve, and combine front braking with front and rear braking together by adopting two modes of parallel connection and series connection. Simple and stable structure and good braking effect.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a balancer hydraulic distribution valve and a braking system.
Background
The CBS braking system can realize simultaneous braking of the front wheel and the rear wheel by a single hand or foot, and obtains higher braking efficiency by reasonable distribution of braking force of the front wheel and the rear wheel, thereby obtaining higher braking deceleration, reducing the braking distance of the vehicle and ensuring safe, rapid and stable parking of the vehicle running at a high speed. In the prior art, the front-rear distribution effect of braking force is poor, resulting in poor overall braking performance. And the existing braking system has complex structure and higher cost.
Disclosure of Invention
The invention aims to provide a hydraulic distribution valve of a balancer, which can better distribute power provided by an input end.
Another object of the present invention is to provide a braking system, which has a better braking effect, a simple and stable structure and a low cost.
It is a further object of the present invention to provide a further braking system which also has a better braking effect and which is simple and stable in construction and low in cost.
Embodiments of the present invention are implemented as follows:
a balancer hydraulic distribution valve, comprising:
the valve body is provided with a cylindrical liquid storage cavity, one end of the valve body in the axial direction is provided with an opening communicated with the liquid storage cavity, the inner wall of the valve body is provided with a first channel and a second channel which are communicated with the inside and the outside of the valve body, and the first channel is far away from the opening of the liquid storage cavity relative to the second channel;
a valve rod which extends into the liquid storage cavity from an opening part of the liquid storage cavity and is configured to be movable relative to the valve body in the axial direction of the valve body; the valve rod is in sealing fit with the inner side of the opening, one end of the valve rod is provided with a sealing head, and the outer peripheral side of the sealing head is in sealing fit with the inner side wall of the liquid storage cavity; the sealing head is configured to be capable of moving axially between the first channel and the second channel, the liquid storage cavity is divided into a first cavity and a second cavity by the sealing head, the first cavity is communicated with the first channel, and the second cavity is communicated with the second channel;
the pulling assembly comprises a pulling piece, one end of the pulling piece is connected with one end of the valve rod extending out of the liquid storage cavity, and the other end of the pulling piece is used for being externally connected with the braking device, so that the pulling piece can simultaneously pull the braking device and the valve rod.
In an embodiment of the present invention, a third channel is further disposed inside a wall surface of the valve body of the balancer hydraulic distribution valve, and the third channel has a first end and a second end, the first end is communicated with the first cavity, the second end is located on an inner side wall of the valve body, and the second end can be selectively communicated to the first cavity or the second cavity when the sealing head moves axially.
In one embodiment of the present invention, an elastic member is disposed in the second cavity of the balancer hydraulic distribution valve, one end of the elastic member is connected to the valve rod, the other end of the elastic member is connected to the inner wall of the valve body, and the elastic member is used for providing power for moving the valve rod in a direction deviating from the pulling assembly.
In an embodiment of the present invention, the balancer hydraulic distribution valve is further provided with a limiting portion to limit axial movement of the valve rod to a side where the pulling assembly is located.
In an embodiment of the present invention, the limiting portion of the balancer hydraulic distribution valve includes a fixing portion and an adjusting portion, the fixing portion is connected to the valve body, the adjusting portion is in threaded connection with the fixing portion and is adjustable in a movement direction of the valve rod relative to the fixing portion, and the adjusting portion is used for axially limiting the valve rod.
In one embodiment of the invention, the fixing part of the balancer hydraulic distribution valve is a U-shaped piece with an opening at one end, one end of the fixing part with the opening is connected with two sides of the valve body, and the adjusting part is arranged at one closed end of the fixing part.
In an embodiment of the invention, the limit portion of the balancer hydraulic distribution valve is disposed on the valve rod, and the limit portion is used for abutting against the valve body to limit the valve rod to move to the side where the pulling assembly is located.
In one embodiment of the present invention, one end of a pulling member of the balancer hydraulic distribution valve is rotatably connected with the valve rod, the pulling assembly further comprises a pull rod, and one end of the pull rod is rotatably connected between two ends of the pulling member for connecting the rear drum brake assembly and the valve rod; the valve rod stretches out the one end of valve body and is equipped with the bar hole, and the length direction in bar hole is unanimous with the length direction of valve rod, and the pulling piece is rotated through the round pin axle and is connected in bar hole.
In an embodiment of the present invention, one end of a pulling member of the balancer hydraulic distribution valve is rotatably connected to the valve rod, and the pulling assembly further includes a pull rod, one end of which is rotatably connected between two ends of the pulling member for connecting the rear drum brake assembly and the valve rod.
In one embodiment of the invention, a bar-shaped hole is arranged at one end of the valve rod of the balancer hydraulic distribution valve, which extends out of the valve body, the length direction of the bar-shaped hole is consistent with the length direction of the valve rod, and the pulling piece is rotatably connected with the bar-shaped hole through a pin shaft.
The brake system comprises a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly and the balancer hydraulic distribution valve, wherein the first input assembly is communicated with a first channel through a first pipeline, the front brake caliper assembly is communicated with a second channel through a second pipeline, the first input assembly is used for controlling the hydraulic pressure in the first pipeline, and the front brake caliper assembly realizes braking by utilizing the hydraulic pressure in the second pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece.
A brake system comprising a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly, a hollow reservoir and a balancer hydraulic distribution valve as described above; the first input assembly is connected with the front brake caliper assembly through a first pipeline, and controls the front brake caliper assembly to brake through controlling the hydraulic pressure in the first pipeline, and the front brake caliper assembly is simultaneously communicated with the second channel through a second pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece; the liquid storage device is communicated with the first channel.
The embodiment of the invention has the beneficial effects that:
the balancer hydraulic distribution valve comprises a valve body, a valve rod and a pulling assembly, wherein the valve rod is partially arranged in the valve body, and one end of the valve rod extending into the valve body is provided with a sealing head closely attached to the inner side wall of the valve body. The valve body is provided with first passageway and second passageway of axial interval distribution, and first passageway is the input of liquid, and the second passageway is the output of liquid, and the second passageway is close to the open end of valve body relative to first passageway. When the sealing head is positioned between the second channel and the first channel, the pulling component pulls the valve rod to move outwards, hydraulic pressure is output through the second channel, and meanwhile, the pulling piece of the pulling component pulls the external braking device, so that the force input by the pulling component is distributed to the hydraulic pressure output by the second channel and the braking device. Alternatively, hydraulic pressure may be input from the first passage and the sealing head may be pressed to constrict the second cavity to provide a certain output hydraulic pressure to the second passage. The structure is simple, the distribution of the force from the pulling assembly is realized stably, and the input-output mode can be adjusted.
The braking system comprises a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly and the balancer hydraulic distribution valve, wherein the first input assembly is communicated with a first channel through a first pipeline, the front brake caliper assembly is communicated with a second channel through a second pipeline, the first input assembly is used for controlling the hydraulic pressure in the first pipeline, and the front brake caliper assembly realizes braking by utilizing the hydraulic pressure in the second pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece. The front brake system is connected in series with the CBS brake system and shares a front brake caliper input channel, and the front brake caliper can be single-cylinder or double-cylinder. The first input assembly can be a conventional common hydraulic main pump, the CBS function is realized without additional structure, the structure is simple and stable, and the braking effect is good.
The other braking system of the embodiment of the invention comprises a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly, a hollow liquid storage device and the balancer hydraulic distribution valve; the first input assembly is connected with the front brake caliper assembly through a first pipeline, and controls the front brake caliper assembly to brake through controlling the hydraulic pressure in the first pipeline, and the front brake caliper assembly is simultaneously communicated with the second channel through a second pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece; the liquid storage device is communicated with the first channel. The front braking system controlled by the first input assembly is connected in parallel with the CBS braking system controlled by the second input assembly, and the front braking system is an independent braking system. The first input assembly may be a conventional, common hydraulic main pump, requiring no additional structure to implement CBS functionality. The connecting structure is simple, the occupied space is small, and the braking effect is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a sectional view of a balancer hydraulic distribution valve in embodiment 1 of the present invention from a first perspective;
fig. 2 is a sectional view of the balancer hydraulic distribution valve in embodiment 1 of the present invention from a second perspective;
fig. 3 is a sectional view of the balancer hydraulic distribution valve in embodiment 2 of the present invention from a first perspective;
FIG. 4 is a schematic diagram showing the connection of a brake system according to embodiment 3 of the present invention;
fig. 5 is a schematic diagram showing the connection of the brake system in embodiment 4 of the present invention.
Icon: 100-balancer hydraulic distribution valve; 110-valve body; 111-a first channel; 112-a second channel; 113-a third channel; 114-a first end; 115-a second end; 116-a first cavity; 117-a second cavity; 120-limit parts; 121-a fixing part; 122-an adjusting part; 130-valve stem; 131-sealing heads; 132-an elastic member; 133-bar-shaped holes; 134-limit fork lugs; 135-buffer part; 136-an abutment; 137-pin shafts; 150-a pulling assembly; 151-pulling member; 152-tie rod; 153-clamping part; 200-balancer hydraulic distribution valve; 210-a valve body; 211-isolating seats; 212-plugs; 220-limit part; 230-valve stem; 300-braking system; 310-front brake caliper assembly; 320-a rear drum brake assembly; 330-a first input assembly; 332-a first line; 340-a second input assembly; 342-a second line; 400-braking system; 410-a reservoir.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In describing embodiments of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
Example 1
Fig. 1 is a sectional view of a balancer hydraulic pressure distribution valve 100 in embodiment 1 of the present invention from a first perspective; fig. 2 is a sectional view of the balancer hydraulic pressure distribution valve 100 in embodiment 1 of the present invention from a second perspective; referring to fig. 1 and 2, the present embodiment provides a balancer hydraulic distribution valve 100, which includes a valve body 110, a valve stem 130, and a pulling assembly 150. The valve body 110 has a cylindrical liquid storage cavity, both ends of the valve body 110 and the liquid storage cavity extend in both directions A, B, and the valve stem 130 partially extends into the liquid storage cavity in the direction B and is axially slidable with respect to the valve body 110. The pulling assembly 150 is coupled to an end of the valve stem 130 facing in the direction a and is configured to provide a pulling force to the valve stem 130 facing in the direction a.
In this embodiment, the valve body 110 has an opening at one end facing the a direction, which communicates with the liquid storage cavity, and the opening is used for the insertion of the valve rod 130 and is in sealing fit with the valve rod 130; the end of the valve rod 130 extending into the valve body 110 is provided with a sealing head 131, and the outer peripheral side of the sealing head 131 is in sealing fit with the inner side wall of the valve body 110 and divides the liquid storage cavity into a first cavity 116 and a second cavity 117. The inner wall of the valve body 110 is provided with a first channel 111 and a second channel 112 which are communicated with the inside and the outside of the valve body 110, and the first channel 111 is far away from the opening of the liquid storage cavity relative to the second channel 112; the first cavity 116 communicates with the first passage 111 and the second cavity 117 communicates with the second passage 112.
Further, the first channel 111 and the second channel 112 each extend radially outward from the inner sidewall of the valve body 110 to the outside, and the first channel 111 is adjacent to one end of the liquid storage cavity in the direction B. The extending directions of the first channel 111 and the second channel 112 have opposite inclination angles so as to facilitate connection and arrangement of the external connection member (not shown), and in this embodiment, the inclination angles may be 20 ° to 40 °, and in other embodiments, larger or smaller angles may be set as required. The first passage 111 is used for inputting liquid and providing hydraulic pressure; the second passage 112 is used for outputting liquid to provide hydraulic pressure to an external braking device.
A third passage 113 is further provided in the wall of the valve body 110, the third passage 113 having a first end 114 and a second end 115, the first end 114 being in communication with the first cavity 116, the second end 115 being located on an inner side wall of the valve body 110, the second end 115 being capable of selectively communicating to the first cavity 116 or the second cavity 117 upon axial movement of the sealing head 131. In this embodiment, the third channel 113 is divided into two sections, a first section extending radially outward from the inner sidewall of the valve body 110, and a second end 115 communicating the first section with a first cavity 116. The provision of the third passage 113 facilitates the release of hydraulic pressure within the second cavity 117.
An elastic member 132 is disposed in the second cavity 117, one end of the elastic member 132 is connected to the valve rod 130, the other end of the elastic member 132 is connected to the inner wall of the valve body 110, and the elastic member 132 is used for providing power for moving the valve rod 130 in the direction B, so that the valve rod 130 can return in a direction deviating from the pulling assembly 150. In this embodiment, the elastic member 132 is a spring, which is sleeved on the valve rod 130, and has one end connected to the valve rod 130 and the other end abutting against the end wall of the opening of the valve body 110. In other embodiments of the present invention, the elastic member 132 may be made of other elastic materials such as rubber.
The balancer hydraulic pressure distribution valve 100 is further provided with a limiting portion 120 to limit axial movement of the valve stem 130 toward the side of the pulling assembly 150. In this embodiment, the limiting portion 120 includes a fixing portion 121 and an adjusting portion 122, the fixing portion 121 is connected to the valve body 110, the adjusting portion 122 is in threaded connection with the fixing portion 121 and is adjustable relative to the fixing portion 121 in a movement direction of the valve rod 130, and the adjusting portion 122 is used for axially limiting the valve rod 130.
In detail, the fixing portion 121 is disposed at one end of the valve body 110 facing the direction a, the fixing portion 121 is a U-shaped member having an opening at one end, one end of the fixing portion 121 having the opening is connected to both sides of the valve body 110, and the adjusting portion 122 is disposed at one closed end of the fixing portion 121 and is used for abutting against one end of the valve rod 130 facing the direction a, thereby limiting. In the present embodiment, the adjusting portion 122 is an adjusting bolt that is displaceable in the A, B direction by screwing to adjust the limit position.
It should be understood that in other embodiments of the present invention, the shape of the fixing portion 121 is not limited to a U shape, but may be configured as an L shape, and both ends thereof are connected to the valve body 110 and the fixing portion 121, respectively, to accomplish the limitation; it should be appreciated that where the check 120 is capable of axially limiting the valve stem 130 or the pull assembly 150, the particular shape of the check 120 should not be limiting.
In this embodiment, the end of the valve rod 130 extending out of the valve body 110 is an axially extending plate-like structure provided with a strip-shaped hole 133 for connection with the pulling assembly 150, the length direction of the strip-shaped hole 133 being identical to the length direction of the valve rod 130. The sealing head 131 on the valve rod 130 is tightly attached to the inner wall of the valve body 110 through a dynamic seal Y-shaped sealing ring.
In this embodiment, the pulling assembly 150 includes a pulling member 151 and a pulling rod 152. Specifically, the pulling member 151 has a bar shape, and one end of the pulling member 151 has two opposite clamping portions 153 for clamping the end of the valve rod 130, and is rotatably connected to the bar hole 133 through the pin 137. The other end of the pulling member 151 is used to rotate a member (such as a brake) connected to the outside. The pull rod 152 is rotatably connected between both ends of the pulling member 151, and the distribution ratio of the pulling force at the time of pulling is adjusted by the position relative to both ends. When the connection point of the pull rod 152 and the pull member 151 is close to the end of the valve stem 130, the tensile force distributed by the valve stem 130 increases, and when the connection point of the pull rod 152 and the pull member 151 is far from the end of the valve stem 130, the external connection member at the other end of the pull member 151 distributes more tensile force. The bar-shaped hole 133 may enable the valve rod 130 to displace in the axial direction of the valve rod 130 relative to the pin 137, so that the pulling member 151 is not driven to move in the direction a when the valve rod 130 is moved in the direction a by the hydraulic pressure of the first cavity 116.
In order to improve the stability of the movement of the pulling member 151 in the a-B direction, the valve body 110 is provided with a pair of limiting fork lugs 134, and the pulling member 151 is placed between the two limiting fork lugs 134, so that the pulling member 151 is prevented from swinging to two sides of the valve body 110 to interfere with other external units. A buffer part 135 is arranged between the limiting fork lugs 134, and the buffer part 135 prevents the pulling piece 151 from directly rigidly contacting the valve body 110 when moving in the direction B, thereby avoiding noise generation and prolonging the service life of the device.
An abutment 136 is provided at an end of the valve stem 130 facing the direction B, which axially protrudes to prevent further movement of the valve stem 130 into the valve body 110, which would cause the sealing head 131 to pass over the first passage 111, thereby allowing the first passage 111 to communicate with the second chamber.
The operating principle of the balancer hydraulic distribution valve 100 is:
when the pull rod 152 applies a pulling force F in the direction A, the pulling force F is transmitted to the pulling piece 151 and distributed to two ends of the pulling piece 151, the external device and the valve rod 130 are pulled together, the valve rod 130 moves in the direction A, when the sealing part of the sealing head 131 passes over the second end 115 of the third channel 113, a certain hydraulic pressure is generated by further contraction of the second cavity 117, and the hydraulic pressure is output from the second channel 112; the valve rod 130 is pulled further, so that the valve rod 130 abuts against the adjusting portion 122 of the limiting portion 120, and the valve rod 130 cannot be displaced further in the direction a, so that the output pressure of the second channel 112 reaches the maximum, and the pressure limiting effect is achieved. And at this time, the end of the pulling member 151 connected with the external device (not shown) can continue to output power. The magnitude of the pressure limit can be changed by adjusting the adjusting portion 122.
When the force F is released, the elastic member 132 can reset the valve rod 130, and the sealing head 131 moves toward the direction B, so that the second end 115 returns to the second cavity 117, and the second cavity 117 is communicated with the first cavity 116 through the third channel 113, so that the system is hydraulically depressurized.
When the first cavity 116 and the second cavity 117 are communicated through the third channel 113 and hydraulic pressure is applied from the first channel 111, the pressure of the first cavity 116 and the pressure of the second cavity 117 are increased simultaneously, and the pressure on both sides of the sealing head 131 in the axial direction are equal, but the pressure surfaces are different, the sealing head 131 receives a hydraulic resultant force in the direction a, and when the hydraulic resultant force does not overcome the elastic force of the elastic member 132, the pressure is directly transmitted and output from the directions of the first channel 111, the third channel 113 and the second channel 112. When the resultant hydraulic force is greater than the thrust force of the elastic member 132, the elastic member 132 is compressed, the sealing head 131 moves in the a direction and passes over the second end 115 of the third passage 113, and the input pressure of the first passage 111 pushes the valve stem 130 to move in the a direction and compresses the liquid of the second cavity 117, and is output from the second passage 112.
The balancer hydraulic pressure distribution valve 100 of the present embodiment can apply power input to the first passage 111 and the pulling assembly 150 at the same time, and then output power from the second passage 112 is superposition of these two input powers in a certain proportion.
Example 2
Fig. 3 is a sectional view of the balancer hydraulic pressure distribution valve 200 in embodiment 2 of the present invention from a first perspective; referring to the drawings, the present embodiment provides a balancer hydraulic pressure distribution valve 200, which is substantially the same as the balancer hydraulic pressure distribution valve 100 of embodiment 1, and differs from embodiment 1 in the structure of the valve body 210, the valve stem 230, and the stopper 220 of the balancer hydraulic pressure distribution valve 200 of the present embodiment.
In this embodiment, the valve rod 230 penetrates through both ends of the valve body 210 in the a-B direction, and one end of the valve body 210 facing the B direction passes through a spacer 211 and cooperates with a sealing ring to seal the valve rod 230 and the valve body 210 in the axial direction, so that the liquid in the valve rod does not leak. One side of the isolation seat 211, which is close to the direction B, is limited by a plug 212 with a hole.
In this embodiment, the valve stem 230 has a longer extension at the end of the sealing head 131 toward the B direction, and the valve stem 230 protrudes out of the valve body 210 through the plug 212. In the present embodiment, the block-shaped limiting portion 220 is connected to an end of the valve rod 230 away from the pulling assembly 150 through threads, and achieves a limiting effect by abutting against the outer side of the plug 212. The limiting part 220 can be a nut or can be designed into other shapes, and the position of the limiting part 220 can be adjusted by screwing, so that different limiting effects can be realized.
Since the pressure input through the first passage 111 has a difference in cross section on both sides of the sealing head 131 (the cross section on the side in the B direction is larger than the cross section on the side in the a direction), the sealing head 131 receives a resultant hydraulic force in the a direction, and power output is performed.
In addition, the relative positions of the sealing head 131 and the passages on the valve body 210 during the relative movement are the same as those of embodiment 1, and will not be described here again.
Example 3
Fig. 4 is a schematic diagram showing the connection of the brake system 300 in embodiment 3 of the present invention. Referring to fig. 4, the present embodiment provides a brake system 300, which may be used in a motorcycle, and includes a front brake caliper assembly 310, a rear drum brake assembly 320, a first input assembly 330, a second input assembly 340, and a balancer hydraulic distribution valve 100, wherein the first input assembly 330 is communicated with a first channel 111 through a first line 332, the front brake caliper assembly 310 is communicated with a second channel 112 through a second line 342, the first input assembly 330 is used for controlling hydraulic pressure in the first line 332, and the front brake caliper assembly 310 uses hydraulic pressure in the second line 342 to implement braking; the second input assembly 340 is in driving connection with the pulling member 151 (see fig. 1), and the rear drum brake assembly 320 is in driving connection with the pulling member 151. It should be appreciated that in other embodiments of the present invention, the balancer hydraulic distribution valve 200 may also be employed.
In the present embodiment, the first input assembly 330 employs a front main pump assembly to control the hydraulic pressure in the first line 332, with power being input to the balancer hydraulic pressure distribution valve 100 by the first passage 111; the second input assembly 340 may be a foot pedal of a motorcycle that provides tension to the pull assembly 150 (see fig. 1) by way of the foot pedal. In this embodiment, the front caliper assembly 310 is used to brake the front wheels and the rear drum brake assembly 320 is used to brake the rear wheels.
In this embodiment, the first input assembly 330 can unilaterally control the front brake caliper assembly 310 to brake; the second input assembly 340 pulls the balancer hydraulic pressure distribution valve 100 through the foot pedal while controlling the front caliper assembly 310 and the rear drum brake assembly 320 to brake, forming a CBS brake system.
The front wheel brake system is connected in series with the CBS brake system, sharing the input channel of the front caliper assembly 310, which may be single and double cylinders.
Example 4
Fig. 5 is a schematic diagram showing the connection of a brake system 400 in embodiment 4 of the present invention. Referring to fig. 5, the present embodiment provides a brake system 400 that may be used in a motorcycle, including a front brake caliper assembly 310, a rear drum brake assembly 320, a first input assembly 330, a second input assembly 340, a hollow reservoir 410, and a balancer hydraulic distribution valve 100; the first input assembly 330 is connected to the front brake caliper assembly 310 via a first line 332 and brakes the front brake caliper assembly 310 by controlling the hydraulic pressure in the first line 332, the front brake caliper assembly 310 simultaneously communicating with the second passage 112 via a second line 342; the second input assembly 340 is in transmission connection with the pulling member 151, and the rear drum brake assembly 320 is in transmission connection with the pulling member 151; the liquid storage device 410 communicates with the first passage 111 and serves to supply or store liquid. It should be appreciated that in other embodiments of the present invention, the balancer hydraulic distribution valve 200 may also be employed.
In this embodiment, the first input assembly 330 employs a front main pump assembly to control the hydraulic pressure in the first line 332 to input power from the first passage 111 to the front caliper assembly 310; the second input assembly 340 may be a foot pedal of a motorcycle that provides tension to the pull assembly 150 (see fig. 1) by way of the foot pedal. In this embodiment, the front caliper assembly 310 is used to brake the front wheels and the rear drum brake assembly 320 is used to brake the rear wheels.
The second input assembly 340 pulls the balancer hydraulic pressure distribution valve 100 through the foot pedal while controlling the front caliper assembly 310 and the rear drum brake assembly 320 to brake, forming a CBS brake system. The first input assembly 330 may unilaterally control the front caliper assembly 310 to brake, with the front wheel brake system being connected in parallel with the CBS brake system. The link has a simple structure and small occupied space.
The pedal is operated, and the operating force distributes the braking force to the intermediate pistons of the rear drum brake assembly 320 and the front caliper assembly 310 through the balancer hydraulic distribution valve 100; the first input assembly 330 is actuated and the actuating force directly outputs hydraulic pressure to the pistons on either side of the front caliper assembly 310. It should be noted that the number of pistons of the front caliper assembly 310 herein is three, and in other embodiments, the number of pistons used for braking may be more than three.
In summary, the balancer hydraulic distribution valve according to the embodiment of the invention includes a valve body, a valve rod partially disposed in the valve body, and a pulling assembly, wherein one end of the valve rod extending into the valve body is provided with a sealing head closely attached to an inner side wall of the valve body. The valve body is provided with first passageway and second passageway of axial interval distribution, and first passageway is the input of liquid, and the second passageway is the output of liquid, and the second passageway is close to the open end of valve body relative to first passageway. When the sealing head is positioned between the second channel and the first channel, the pulling component pulls the valve rod to move outwards, hydraulic pressure is output through the second channel, and meanwhile, the pulling piece of the pulling component pulls the external braking device, so that the force input by the pulling component is distributed to the hydraulic pressure output by the second channel and the braking device. Alternatively, hydraulic pressure may be input from the first passage and the sealing head may be pressed to constrict the second cavity to provide a certain output hydraulic pressure to the second passage. The structure is simple, the distribution of the force from the pulling assembly is realized stably, and the input-output mode can be adjusted.
The braking system comprises a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly and the balancer hydraulic distribution valve, wherein the first input assembly is communicated with a first channel through a first pipeline, the front brake caliper assembly is communicated with a second channel through a second pipeline, the first input assembly is used for controlling the hydraulic pressure in the first pipeline, and the front brake caliper assembly realizes braking by utilizing the hydraulic pressure in the second pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece. The front brake system is connected in series with the CBS brake system and shares a front brake caliper input channel, and the front brake caliper can be single-cylinder or double-cylinder. The first input assembly can be a conventional common hydraulic main pump, the CBS function is realized without additional structure, the structure is simple and stable, and the braking effect is good.
The other braking system of the embodiment of the invention comprises a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly, a hollow liquid storage device and the balancer hydraulic distribution valve; the first input assembly is connected with the front brake caliper assembly through a first pipeline and controls the front brake caliper assembly to brake through controlling the hydraulic pressure in the first pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece; the liquid storage device is communicated with the first channel. The front braking system controlled by the first input assembly is connected in parallel with the CBS braking system controlled by the second input assembly, and the front braking system is an independent braking system. The first input assembly may be a conventional, common hydraulic main pump, requiring no additional structure to implement CBS functionality. The connecting structure is simple, the occupied space is small, and the braking effect is good.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A balancer hydraulic distribution valve, characterized by comprising:
the valve body is provided with a cylindrical liquid storage cavity, one end of the valve body in the axial direction is provided with an opening communicated with the liquid storage cavity, the inner wall of the valve body is provided with a first channel and a second channel which are communicated with the inside and the outside of the valve body, and the first channel is far away from the opening of the liquid storage cavity relative to the second channel;
a valve stem which partially protrudes into the liquid storage cavity from an opening of the liquid storage cavity and is configured to be movable in an axial direction of the valve body with respect to the valve body; the valve rod is kept in sealing fit with the inner side of the opening, one end of the valve rod is provided with a sealing head, and the outer peripheral side of the sealing head is in sealing fit with the inner side wall of the liquid storage cavity; the sealing head is configured to be axially movable between the first channel and the second channel, the liquid storage cavity is divided into a first cavity and a second cavity by the sealing head, the first cavity is communicated with the first channel, and the second cavity is communicated with the second channel;
the pulling assembly comprises a pulling piece, one end of the pulling piece is connected with one end of the valve rod extending out of the liquid storage cavity, and the other end of the pulling piece is externally connected with a braking device, so that the pulling piece can simultaneously pull the braking device and the valve rod;
an elastic piece is arranged in the second cavity, one end of the elastic piece is connected with the valve rod, the other end of the elastic piece is connected with the inner wall of the valve body, and the elastic piece is used for providing power for the valve rod to move in a direction deviating from the pulling assembly;
the balancer hydraulic distribution valve is further provided with a limiting part for limiting the axial movement of the valve rod to the side where the pulling assembly is located.
2. The balancer hydraulic distribution valve according to claim 1, wherein a third passage is further provided inside the wall surface of the valve body, the third passage having a first end and a second end, the first end being in communication with the first cavity, the second end being located on an inner side wall of the valve body, the second end being selectively communicable to the first cavity or the second cavity upon axial movement of the sealing head.
3. The balancer hydraulic distribution valve according to claim 1, wherein the limiting portion includes a fixing portion connected to the valve body and an adjusting portion screwed to the fixing portion and adjustable in a moving direction of the valve stem with respect to the fixing portion, the adjusting portion being for axially limiting the valve stem.
4. The balancer hydraulic distribution valve according to claim 3, wherein the fixing portion is a U-shaped member having an opening at one end, one end of the fixing portion having the opening is connected to both sides of the valve body, and the adjusting portion is provided at one end of the fixing portion that is closed.
5. The balancer hydraulic distribution valve according to claim 1, wherein the limiting portion is provided to the valve stem, and the limiting portion is configured to abut against the valve body to limit movement of the valve stem to a side where the pulling assembly is located.
6. The balancer hydraulic distribution valve according to claim 1, wherein one end of the pulling member is rotatably connected to the valve stem, the pulling assembly further comprising a pull rod, one end of the pull rod being rotatably connected to the pulling member for connecting between an externally connected brake device and both ends of the valve stem; the valve rod stretches out the one end of valve body is equipped with the bar hole, the length direction in bar hole with the length direction of valve rod is unanimous, the pulling piece pass through the round pin axle rotate connect in the bar hole.
7. A brake system comprising a front brake caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly, and the balancer hydraulic distribution valve of any of claims 1-6, the first input assembly in communication with the first passage through a first line, the front brake caliper assembly in communication with the second passage through a second line, the first input assembly for controlling hydraulic pressure in the first line, the front brake caliper assembly effecting braking using hydraulic pressure within the second line; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece.
8. A brake system comprising a front caliper assembly, a rear drum brake assembly, a first input assembly, a second input assembly, a hollow reservoir, and a balancer hydraulic distribution valve according to any of claims 1-6; the first input assembly is connected with the front brake caliper assembly through a first pipeline, and controls the front brake caliper assembly to brake by controlling the hydraulic pressure in the first pipeline, and the front brake caliper assembly is simultaneously communicated with the second channel through a second pipeline; the second input assembly is in transmission connection with the pulling piece, and the rear drum brake assembly is in transmission connection with the pulling piece; the liquid storage device is communicated with the first channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752659.6A CN107351834B (en) | 2017-08-28 | 2017-08-28 | Balancer hydraulic distribution valve and braking system |
| BR102018004191-6A BR102018004191A2 (en) | 2017-08-28 | 2018-03-01 | BALANCING HYDRAULIC DISTRIBUTION VALVE AND BRAKING SYSTEM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752659.6A CN107351834B (en) | 2017-08-28 | 2017-08-28 | Balancer hydraulic distribution valve and braking system |
Publications (2)
| Publication Number | Publication Date |
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| CN107351834A CN107351834A (en) | 2017-11-17 |
| CN107351834B true CN107351834B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710752659.6A Active CN107351834B (en) | 2017-08-28 | 2017-08-28 | Balancer hydraulic distribution valve and braking system |
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| Country | Link |
|---|---|
| CN (1) | CN107351834B (en) |
| BR (1) | BR102018004191A2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161878A (en) * | 1984-06-07 | 1986-01-22 | Honda Motor Co Ltd | Brake force control in motorcycles |
| DE10213279A1 (en) * | 2001-03-26 | 2002-10-10 | Aisin Seiki | Brake pressure generating device for vehicles uses regulating valve to regulate work pressure released by hydraulic pressure generator to a preset pressure corresponding to brake actuating force of brake pedal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291089A (en) * | 1968-12-10 | 1972-09-27 | Kelsey Hayes Co | Pressure proportioning valve for hydraulic brake systems |
| FI113027B (en) * | 2000-09-08 | 2004-02-27 | Etelae Suomen Autotalo Oy | The control device |
| CN101251132A (en) * | 2007-12-27 | 2008-08-27 | 黄祖良 | Prorate hydraulic valve |
| ES2605880T3 (en) * | 2013-06-18 | 2017-03-16 | Yamaha Hatsudoki Kabushiki Kaisha | Straddle type vehicle |
| CN106882175A (en) * | 2017-04-01 | 2017-06-23 | 眉山中车制动科技股份有限公司 | Application valve and rail vehicle braking system |
| CN207345789U (en) * | 2017-08-28 | 2018-05-11 | 湖北航特科技有限责任公司 | A kind of balancer hydraulic distributing valve and braking system |
-
2017
- 2017-08-28 CN CN201710752659.6A patent/CN107351834B/en active Active
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2018
- 2018-03-01 BR BR102018004191-6A patent/BR102018004191A2/en active Search and Examination
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161878A (en) * | 1984-06-07 | 1986-01-22 | Honda Motor Co Ltd | Brake force control in motorcycles |
| DE10213279A1 (en) * | 2001-03-26 | 2002-10-10 | Aisin Seiki | Brake pressure generating device for vehicles uses regulating valve to regulate work pressure released by hydraulic pressure generator to a preset pressure corresponding to brake actuating force of brake pedal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107351834A (en) | 2017-11-17 |
| BR102018004191A2 (en) | 2019-03-19 |
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