CN210397295U - Device for eliminating static and dynamic hydraulic fluctuation - Google Patents
Device for eliminating static and dynamic hydraulic fluctuation Download PDFInfo
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- CN210397295U CN210397295U CN201921438734.2U CN201921438734U CN210397295U CN 210397295 U CN210397295 U CN 210397295U CN 201921438734 U CN201921438734 U CN 201921438734U CN 210397295 U CN210397295 U CN 210397295U
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- 230000003068 static effect Effects 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims description 98
- 239000007788 liquid Substances 0.000 claims description 35
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000008030 elimination Effects 0.000 abstract description 6
- 238000003379 elimination reaction Methods 0.000 abstract description 6
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- 230000002411 adverse Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 37
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- 238000000034 method Methods 0.000 description 7
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- 230000005540 biological transmission Effects 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to an automobile clutch system specifically discloses a be applied to the undulant device of static and dynamic hydraulic pressure of elimination in the automobile clutch system. The valve at least comprises a first valve body, a second valve body, a first valve core, a second valve core and a valve cover. The utility model discloses a remove undulant device of static and dynamic hydraulic pressure, the undulant elimination function of dynamic hydraulic pressure and the undulant elimination function of static hydraulic pressure have integrateed the function integrated level height, simple structure, with low costs and the less technical advantage of occupation space, even in the compact motorcycle type, also can have sufficient space to install, make this vehicle can avoid because of the undulant adverse effect that causes of static hydraulic pressure and dynamic hydraulic pressure.
Description
Technical Field
The utility model relates to an automobile clutch system, concretely relates to be applied to the undulant device of static and dynamic hydraulic pressure of elimination in the automobile clutch system.
Background
The hydraulic clutch realizes the separation and combination of the clutch through a hydraulic control system. When the clutch pedal is stepped on, brake fluid flows from the clutch master cylinder to the clutch slave cylinder, and after the clutch pedal is released, the brake fluid flows back to the clutch master cylinder from the clutch slave cylinder.
In the working state of the clutch, hydraulic fluctuation is generated in the process of stepping on a clutch pedal, namely in the process of flowing brake fluid from a clutch master cylinder to a clutch slave cylinder, and the hydraulic fluctuation generated in the process is called dynamic hydraulic fluctuation in the industry; when the pedal is left in a certain position, for example a semi-coupled state, the brake fluid generates a reverse hydraulic fluctuation, which is referred to in the industry as a static hydraulic fluctuation.
No matter static hydraulic pressure fluctuation or dynamic hydraulic pressure fluctuation, the vibration of parts such as a clutch master cylinder, a clutch slave cylinder, a clutch pedal and the like can be caused, so that the service lives of an engine, the clutch master cylinder, the clutch slave cylinder, the clutch pedal and other parts in a clutch operation system are influenced, the maintenance time of a vehicle is shortened, and the comfortable feeling of a driver for stepping on the clutch pedal is influenced.
In the prior art, both devices for eliminating static hydraulic pressure fluctuations and devices for eliminating dynamic hydraulic pressure fluctuations have applications. However, to eliminate both static hydraulic pressure fluctuation and dynamic hydraulic pressure fluctuation, two sets of hydraulic pressure fluctuation eliminating devices need to be installed, which not only results in higher cost, but also requires larger space, and for compact vehicle models, there is not enough space to install two sets of devices.
Disclosure of Invention
The to-be-solved technical problem of the utility model is that the technical scheme who eliminates static hydraulic pressure fluctuation and dynamic hydraulic pressure fluctuation in the fluid pressure type clutch simultaneously among the prior art has that the structure is complicated, the cost is higher and the space demand is higher technical defect.
In order to solve the technical problem, the utility model provides a technical scheme as follows: an apparatus for eliminating static and dynamic hydraulic pressure fluctuation, comprising:
the first valve body is provided with a first connector, a second connector, a buffer sinking groove and a first liquid flow channel, one end of the first liquid flow channel is communicated with the buffer sinking groove, the first liquid flow channel is communicated with the first connector through a second liquid flow channel, and the first liquid flow channel is communicated with the second connector through a third liquid flow channel;
the valve cover is arranged at one end of the first valve body, which is provided with a buffer sinking groove, a valve plate is arranged between the valve cover and the first valve body, the valve plate covers the opening end of the buffer sinking groove to form a buffer cavity, and one side of the valve cover, which is close to the valve plate, is provided with a deformation sinking groove;
the second valve body is arranged in the second interface, a valve core cavity is arranged on one side of the second interface of the second valve body, and a third interface communicated with the valve core cavity is arranged on the other side of the second valve body;
the first valve core is arranged in the valve core cavity, a first attaching sealing structure is arranged between the first valve core and the bottom of the second connector, a first elastic structure is arranged between one side of the first valve core, which is far away from the first attaching sealing structure, and the second valve body, and a first valve hole and a second valve hole axially penetrate through the first valve core;
the second valve core comprises a large-diameter section and a small-diameter section, the small-diameter section of the second valve core penetrates through the second valve hole from the first valve hole, a liquid flow gap is formed between the small-diameter section and the second valve hole, a second attaching and sealing structure is arranged between the large-diameter section and the hole bottom of the first valve hole, and a second elastic structure is arranged between the second valve core and the first valve body.
In a preferred embodiment, a sealing plug is arranged between the valve plate and the first valve body.
In a preferred embodiment, a sealing ring is arranged between the valve cover and the first valve body.
In a preferred embodiment, a sealing ring is arranged between the second valve body and the second interface.
In a preferred embodiment, the valve cover is in threaded connection with the first valve body and/or the second valve body is in threaded connection with the second port.
An apparatus for eliminating static and dynamic hydraulic pressure fluctuation, comprising:
the first valve body is provided with a first connector, a second connector, a buffer sink groove and a first liquid flow channel; one end of the first liquid flow channel is communicated with the buffer sink groove, and the other end of the first liquid flow channel is communicated with the second interface through a third liquid flow channel; the first interface is communicated with the buffer sink through a liquid flow channel II;
the valve cover is arranged at one end of the first valve body, which is provided with a buffer sinking groove, a valve plate is arranged between the valve cover and the first valve body, the valve plate covers the opening end of the buffer sinking groove to form a buffer cavity, and one side of the valve cover, which is close to the valve plate, is provided with a deformation sinking groove;
the second valve body is arranged in the second interface, a valve core cavity is arranged on one side of the second interface of the second valve body, and a third interface communicated with the valve core cavity is arranged on the other side of the second valve body;
the first valve core is arranged in the valve core cavity, a first attaching sealing structure is arranged between the first valve core and the bottom of the second connector, a first elastic structure is arranged between one side of the first valve core, which is far away from the first attaching sealing structure, and the second valve body, and a first valve hole and a second valve hole axially penetrate through the first valve core;
the second valve core comprises a large-diameter section and a small-diameter section, the small-diameter section of the second valve core penetrates through the second valve hole from the first valve hole, a liquid flow gap is formed between the small-diameter section and the second valve hole, a second attaching and sealing structure is arranged between the large-diameter section and the hole bottom of the first valve hole, and a second elastic structure is arranged between the second valve core and the first valve body.
In a preferred embodiment, a sealing plug is arranged between the valve plate and the first valve body.
In a preferred embodiment, a sealing ring is arranged between the valve cover and the first valve body.
In a preferred embodiment, a sealing ring is arranged between the second valve body and the second interface.
In a preferred embodiment, the valve cover is in threaded connection with the first valve body and/or the second valve body is in threaded connection with the second port.
The utility model discloses an eliminate static and undulant device of dynamic hydraulic pressure, the undulant elimination function of dynamic hydraulic pressure and the undulant elimination function of static hydraulic pressure have integrated level height, simple structure, with low costs and the less technical advantage of occupation space, even in the compact motorcycle type, also can have sufficient space to install, make this vehicle can avoid because of the undulant adverse effect who causes of static hydraulic pressure and dynamic hydraulic pressure.
Drawings
FIG. 1 is a schematic structural diagram of a device for eliminating static and dynamic hydraulic pressure fluctuations according to a first embodiment;
FIG. 2 is a schematic view of the apparatus for eliminating static and dynamic hydraulic pressure fluctuations of FIG. 1 after a clutch pedal is depressed;
FIG. 3 is a schematic view of the device for eliminating static and dynamic hydraulic pressure fluctuations of FIG. 1 in an operating state after the clutch pedal is released;
FIG. 4 is a schematic structural diagram of an apparatus for canceling static and dynamic hydraulic pressure fluctuations according to a second embodiment;
FIG. 5 is a schematic view of the apparatus for canceling static and dynamic hydraulic pressure fluctuations of FIG. 4 after the clutch pedal is depressed;
fig. 6 is a schematic view showing the operation of the device for eliminating static and dynamic hydraulic pressure fluctuations of fig. 4 after the clutch pedal is released.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
Example one
As shown in fig. 1 to 3, the apparatus for canceling static and dynamic hydraulic pressure fluctuations of the present embodiment includes a first valve body 10, a second valve body 20, a first valve spool 30, a second valve spool 40, and a valve cover 50.
Wherein, one side of the first valve body 10 is provided with a first interface 14, and the first interface 14 is usually used for connecting the clutch cylinder through a pipeline. The side of the first valve body 10 remote from the first connection 14 is provided with a second connection 18 for connection to a second valve body 20. A buffer sinking groove 13 is further formed at one side of the first valve body 10, and the buffer sinking groove 13 is used for constructing a buffer cavity.
Wherein, the first valve body 10 is internally provided with a first liquid flow channel 11, one end of the first liquid flow channel 11 is communicated with the buffer sink 13, and the other end is communicated with the second port 18 through a third liquid flow channel 15. In addition, the first flow channel 11 is also communicated with the first interface 14 through the second flow channel 12.
In this embodiment, the valve cap 50 is installed at one end of the first valve body 10 where the buffer sink 13 is provided, and generally, the valve cap 50 is in threaded connection with the first valve body 10, that is, the valve cap is provided with an internal threaded hole, and the first valve body 10 is provided with an external thread adapted to the internal threaded hole of the valve cap. A sealing ring 80 is further installed between the valve cap 50 and the first valve body 10 to achieve sealing and prevent brake fluid from leaking.
In addition, a valve sheet 60 covering the opening end of the buffer sinking groove is further installed between the valve cover 50 and the first valve body 10, and the valve sheet 60 and the buffer sinking groove form a buffer cavity. And a deformation sink 51 is provided at a side of the valve cover 50 adjacent to the valve sheet 60, and the deformation sink 51 serves as a receiving space for receiving deformation of the valve sheet 60.
In this embodiment, a sealing plug 70 is disposed between the valve plate 60 and the first valve body, preferably, the sealing plug is disposed between the bottom of the buffer sinking groove and the valve plate for preventing the brake fluid from leaking. In this embodiment, the sealing plug 70 and the sealing ring 80 form a double seal to ensure that the brake fluid does not leak out.
In this embodiment, the second valve body 20 is installed in the second port 18. Preferably, the second valve body 20 is screwed to the second port 18, and a seal 80 is provided between the second valve body 20 and the second port 18 to prevent brake fluid from leaking.
The second valve body 20 is provided with a valve core cavity 21 on one side of the second port, and a third port 22 communicated with the valve core cavity on the other side. The third port 22 is typically used to connect the clutch master cylinder via a line.
In this embodiment, the first valve core 30 is disposed in the valve core cavity 21, a flange 32 is disposed on one side of the first valve core 30 close to the bottom of the second port, and a plurality of liquid passing holes 33 are disposed on the flange 32 along the circumferential direction. One side of the flange 32 close to the bottom of the second port is a first sealing surface 35, the bottom of the second port is a second sealing surface 17, and a first attaching and sealing structure is formed under the condition that the first sealing surface 35 is attached to the second sealing surface 17.
The first valve core is provided with two limit positions, the first limit position is the joint of the first sealing surface and the second sealing surface of the flange, and the second limit position is the joint of the flange surface far away from one side of the first sealing surface on the flange and the end surface of the second valve body.
Further, the first valve spool 30 has a first valve hole 34 and a second valve hole 31 formed therein, which axially penetrate the first valve spool. Wherein the first valve hole 34 has a larger hole diameter than the second valve hole 31.
In this embodiment, a first elastic structure 90 is disposed between the side of the first valve core away from the first joint sealing structure and the second valve body, and the first elastic structure 90 is preferably a spring. Under the action of the elastic force of the first elastic structure 90, the first sealing surface 35 and the second sealing surface 17 are in fit sealing in a natural state.
The second valve member 40 of the present embodiment includes a large-diameter section 43 and a small-diameter section 42, wherein the small-diameter section of the second valve member is disposed from the first valve hole through the second valve hole, and a liquid flow gap is provided between the small-diameter section and the second valve hole.
In this embodiment, the step surface between the large-diameter section 43 and the small-diameter section 42 is a third sealing surface 41, the bottom of the first valve hole is a fourth sealing surface 36, and the second fitting sealing structure is formed when the third sealing surface 41 and the fourth sealing surface 36 are fitted.
In this embodiment, a second elastic structure 91 is disposed between the second valve core and the first valve body. Preferably, the second elastic structure 91 is a spring. In a natural state, the third sealing surface 41 and the fourth sealing surface 36 are in fit sealing under the elastic force of the second elastic structure 91. In this embodiment, the large diameter section 43 is provided with a spring limiting convex ring 44, and one end of the spring is limited by the spring limiting convex ring 44.
The working principle of the device for eliminating static and dynamic hydraulic fluctuation in the embodiment is as follows:
the third interface is connected with the clutch master cylinder, and the first interface is connected with the clutch slave cylinder. In a natural state, as shown in fig. 1, the pressure at the clutch master pump end and the pressure at the clutch slave pump end are balanced, at this time, the first attaching sealing structure and the second attaching sealing structure are both in an attaching sealing state, and the brake fluid passage is in a disconnected state.
When the clutch pedal is stepped on, as shown in fig. 2, the brake fluid flows from the clutch master cylinder to the clutch slave cylinder, in this state, the second joint sealing structure is separated from the joint under the action of pressure, the second elastic structure is compressed, the brake fluid passage is opened, and the brake fluid flows through the fluid flow gap between the small diameter section of the second valve core and the second valve hole of the first valve core. In the process, dynamic hydraulic fluctuation can be formed, the dynamic hydraulic fluctuation enters the buffer cavity from the third flow channel and the first flow channel, and the valve plate is deformed under the action of the hydraulic fluctuation and protrudes into the deformation sink groove. The dynamic hydraulic pressure fluctuation is absorbed and eliminated through the valve plate, so that the brake fluid flowing to the clutch slave cylinder is ensured to be smooth.
When the clutch pedal is stopped at a certain middle position, the pressure of the clutch master cylinder end and the pressure of the clutch slave cylinder end are balanced, the second joint sealing structure is restored to a joint sealing state under the action of the restoring force of the second elastic structure, the state is shown in figure 1, the brake fluid is blocked at the positions of the first valve core and the second valve core, in the state, the clutch slave cylinder end generates hydraulic fluctuation to the clutch master cylinder end, the hydraulic fluctuation is static hydraulic fluctuation, and the static hydraulic fluctuation is also blocked at the positions of the first valve core and the second valve core in the transmission process.
When the clutch pedal is released, as shown in fig. 3, the brake fluid flows in the reverse direction and flows from the clutch sub-pump end to the clutch main pump end, at this time, the first attaching sealing structure is detached from the attachment under the action of pressure, and the second attaching sealing structure is in an attaching sealing state. The dynamic hydraulic pressure fluctuation generated in the state is also absorbed and eliminated by the valve plate, and the brake fluid flowing into the clutch master cylinder is ensured to be smooth.
When the clutch pedal stays at a certain middle position in the process of loosening, the pressure of the clutch master cylinder end and the pressure of the clutch slave cylinder end are balanced, the first joint sealing structure is restored to a joint sealing state under the action of the restoring force of the first elastic structure, the state is shown in figure 1, the brake fluid is blocked at the positions of the first valve core and the second valve core, in the state, the clutch slave cylinder end generates hydraulic fluctuation to the clutch master cylinder end, the hydraulic fluctuation is static hydraulic fluctuation, and in the transmission process, the static hydraulic fluctuation is also blocked at the positions of the first valve core and the second valve core.
In summary, the device for eliminating static and dynamic hydraulic fluctuations integrates the functions of eliminating dynamic hydraulic fluctuations and static hydraulic fluctuations, and has the advantages of high function integration level, compact structure and small occupied space. Even in a compact vehicle model, there is enough space for installation, so that the vehicle can avoid adverse effects due to static hydraulic pressure fluctuations and dynamic hydraulic pressure fluctuations.
Example two
As shown in fig. 4 to 6, the apparatus for canceling static and dynamic hydraulic pressure fluctuations of the present embodiment includes a first valve body 10, a second valve body 20, a first valve spool 30, a second valve spool 40, and a valve cover 50.
Wherein, one side of the first valve body 10 is provided with a first interface 14, and the first interface 14 is usually used for connecting the clutch cylinder through a pipeline. The side of the first valve body 10 remote from the first connection 14 is provided with a second connection 18 for connection to a second valve body 20. A buffer sinking groove 13 is further formed at one side of the first valve body 10, and the buffer sinking groove 13 is used for constructing a buffer cavity.
In this embodiment, the first valve body 10 is provided therein with a first liquid flow channel 11 and a fourth liquid flow channel 16 which are respectively communicated with the buffer sink 13. The other end of the first flow channel 11 is communicated with the second port 18 through the third flow channel 15, and the other end of the fourth flow channel 16 is communicated with the first port 14 through the second flow channel 12.
Compared with the first embodiment, the structure has the advantages that the fluidity of the brake fluid in the buffer cavity is better, and the brake fluid in the buffer cavity is prevented from generating impurity deposition due to overlong retention time. Meanwhile, all brake fluid needs to pass through the buffer cavity based on the independent arrangement of the two fluid flow channels, and the effect of eliminating hydraulic fluctuation is better.
In this embodiment, the valve cap 50 is installed at one end of the first valve body 10 where the buffer sink 13 is provided, and generally, the valve cap 50 is in threaded connection with the first valve body 10, that is, the valve cap is provided with an internal threaded hole, and the first valve body 10 is provided with an external thread adapted to the internal threaded hole of the valve cap. A sealing ring 80 is further installed between the valve cap 50 and the first valve body 10 to achieve sealing and prevent brake fluid from leaking.
In addition, a valve sheet 60 covering the opening end of the buffer sinking groove is further installed between the valve cover 50 and the first valve body 10, and the valve sheet 60 and the buffer sinking groove form a buffer cavity. And a deformation sink 51 is provided at a side of the valve cover 50 adjacent to the valve sheet 60, and the deformation sink 51 serves as a receiving space for receiving deformation of the valve sheet 60.
In this embodiment, a sealing plug 70 is disposed between the valve plate 60 and the first valve body, preferably, the sealing plug is disposed between the bottom of the buffer sinking groove and the valve plate for preventing the brake fluid from leaking. In this embodiment, the sealing plug 70 and the sealing ring 80 form a double seal to ensure that the brake fluid does not leak out.
In this embodiment, the second valve body 20 is installed in the second port 18. Preferably, the second valve body 20 is screwed to the second port 18, and a seal 80 is provided between the second valve body 20 and the second port 18 to prevent brake fluid from leaking.
The second valve body 20 is provided with a valve core cavity 21 on one side of the second port, and a third port 22 communicated with the valve core cavity on the other side. The third port 22 is typically used to connect the clutch master cylinder via a line.
In this embodiment, the first valve core 30 is disposed in the valve core cavity 21, a flange 32 is disposed on one side of the first valve core 30 close to the bottom of the second port, and a plurality of liquid passing holes 33 are disposed on the flange 32 along the circumferential direction. One side of the flange 32 close to the bottom of the second port is a first sealing surface 35, the bottom of the second port is a second sealing surface 17, and a first attaching and sealing structure is formed under the condition that the first sealing surface 35 is attached to the second sealing surface 17.
Further, the first valve spool 30 has a first valve hole 34 and a second valve hole 31 formed therein, which axially penetrate the first valve spool. Wherein the first valve hole 34 has a larger hole diameter than the second valve hole 31.
The first valve core is provided with two limit positions, the first limit position is the joint of the first sealing surface and the second sealing surface of the flange, and the second limit position is the joint of the flange surface far away from one side of the first sealing surface on the flange and the end surface of the second valve body.
In this embodiment, a first elastic structure 90 is disposed between the side of the first valve core away from the first joint sealing structure and the second valve body, and the first elastic structure 90 is preferably a spring. Under the action of the elastic force of the first elastic structure 90, the first sealing surface 35 and the second sealing surface 17 are in fit sealing in a natural state.
The second valve member 40 of the present embodiment includes a large-diameter section 43 and a small-diameter section 42, wherein the small-diameter section of the second valve member is disposed from the first valve hole through the second valve hole, and a liquid flow gap is provided between the small-diameter section and the second valve hole.
In this embodiment, the step surface between the large-diameter section 43 and the small-diameter section 42 is a third sealing surface 41, the bottom of the first valve hole is a fourth sealing surface 36, and the second fitting sealing structure is formed when the third sealing surface 41 and the fourth sealing surface 36 are fitted.
In this embodiment, a second elastic structure 91 is disposed between the second valve core and the first valve body. Preferably, the second elastic structure 91 is a spring. In a natural state, the third sealing surface 41 and the fourth sealing surface 36 are in fit sealing under the elastic force of the second elastic structure 91. In this embodiment, the large diameter section 43 is provided with a spring limiting convex ring 44, and one end of the spring is limited by the spring limiting convex ring 44.
The working principle of the device for eliminating static and dynamic hydraulic fluctuation in the embodiment is as follows:
the third interface is connected with the clutch master cylinder, and the first interface is connected with the clutch slave cylinder. In a natural state, as shown in fig. 4, the pressure at the clutch master pump end and the pressure at the clutch slave pump end are balanced, at this time, the first attaching sealing structure and the second attaching sealing structure are both in an attaching sealing state, and the brake fluid passage is in a disconnected state.
When the clutch pedal is stepped on, as shown in fig. 5, the brake fluid flows from the clutch master cylinder to the clutch slave cylinder, in this state, the second joint sealing structure is disengaged from the joint under the pressure action, the second elastic structure is compressed, the brake fluid passage is opened, and the brake fluid flows through the fluid flow gap between the small diameter section of the second valve core and the second valve hole of the first valve core. In the process, dynamic hydraulic fluctuation can be formed, the dynamic hydraulic fluctuation enters the buffer cavity from the third flow channel and the first flow channel, and the valve plate is deformed under the action of the hydraulic fluctuation and protrudes into the deformation sink groove. The dynamic hydraulic pressure fluctuation is absorbed and eliminated through the valve plate, so that the brake fluid flowing to the clutch slave cylinder is ensured to be smooth.
When the clutch pedal is stopped at a certain middle position, the pressure of the clutch master cylinder end and the pressure of the clutch slave cylinder end are balanced, the second joint sealing structure is restored to a joint sealing state under the action of the restoring force of the second elastic structure, the state is shown in fig. 4, the brake fluid is blocked at the positions of the first valve core and the second valve core, in the state, the clutch slave cylinder end generates hydraulic fluctuation to the clutch master cylinder end, the hydraulic fluctuation is static hydraulic fluctuation, and the static hydraulic fluctuation is also blocked at the positions of the first valve core and the second valve core in the transmission process.
When the clutch pedal is released, as shown in fig. 6, the brake fluid flows in the reverse direction and flows from the clutch sub-pump end to the clutch main pump end, at this time, the first attaching sealing structure is detached from the attachment under the action of pressure, and the second attaching sealing structure is in an attaching sealing state. The dynamic hydraulic pressure fluctuation generated in the state is also absorbed and eliminated by the valve plate, and the brake fluid flowing into the clutch master cylinder is ensured to be smooth.
When the clutch pedal stays at a certain middle position in the process of loosening, the pressure of the clutch master cylinder end and the pressure of the clutch slave cylinder end are balanced, the first joint sealing structure is restored to a joint sealing state under the action of the restoring force of the first elastic structure, the state is shown in figure 4, the brake fluid is blocked at the positions of the first valve core and the second valve core, in the state, the clutch slave cylinder end generates hydraulic fluctuation to the clutch master cylinder end, the hydraulic fluctuation is static hydraulic fluctuation, and in the transmission process, the static hydraulic fluctuation is also blocked at the positions of the first valve core and the second valve core.
In summary, the device for eliminating static and dynamic hydraulic fluctuations integrates the functions of eliminating dynamic hydraulic fluctuations and static hydraulic fluctuations, and has the advantages of high function integration level, compact structure and small occupied space. Even in a compact vehicle model, there is enough space for installation, so that the vehicle can avoid adverse effects due to static hydraulic pressure fluctuations and dynamic hydraulic pressure fluctuations.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (10)
1. An apparatus for canceling static and dynamic hydraulic pressure fluctuations, comprising:
the valve comprises a first valve body (10) and a second valve body, wherein the first valve body is provided with a first connector (14), a second connector (18), a buffer sink groove (13) and a first liquid flow channel (11), one end of the first liquid flow channel is communicated with the buffer sink groove, the first liquid flow channel is communicated with the first connector through a second liquid flow channel (12), and the first liquid flow channel is communicated with the second connector through a third liquid flow channel (15);
the valve cover (50) is arranged at one end of the first valve body, which is provided with the buffer sinking groove, a valve plate (60) is arranged between the valve cover and the first valve body, the valve plate covers the opening end of the buffer sinking groove to form a buffer cavity, and one side of the valve cover, which is close to the valve plate, is provided with a deformation sinking groove (51);
the second valve body (20) is arranged in the second interface, a valve core cavity (21) is arranged on one side of the second interface of the second valve body, and a third interface (22) communicated with the valve core cavity is arranged on the other side of the second valve body;
the first valve core (30) is arranged in the valve core cavity, a first joint sealing structure is arranged between the first valve core and the bottom of the second connector, a first elastic structure (90) is arranged between one side of the first valve core, which is far away from the first joint sealing structure, and the second valve body, a first valve hole (34) and a second valve hole (31) axially penetrate through the first valve core, and the aperture of the first valve hole is larger than that of the second valve hole;
the second valve core (40) comprises a large-diameter section (43) and a small-diameter section (42), the small-diameter section of the second valve core penetrates through the second valve hole from the first valve hole, a liquid flow gap is formed between the small-diameter section and the second valve hole, a second attaching sealing structure is arranged between the large-diameter section and the bottom of the first valve hole, and a second elastic structure (91) is arranged between the second valve core and the first valve body.
2. An arrangement for canceling static and dynamic hydraulic pressure fluctuations as claimed in claim 1, characterized in that a sealing plug (70) is provided between the valve plate and the first valve body.
3. Device for eliminating static and dynamic hydraulic fluctuations in accordance with claim 1, characterized in that a sealing ring (80) is provided between the valve cover and the first valve body.
4. Device for canceling static and dynamic hydraulic fluctuations according to claim 1, characterized in that a sealing ring (80) is provided between the second valve body and the second port.
5. An arrangement for canceling static and dynamic hydraulic fluctuations according to any one of claims 1 to 4, characterized in that the threaded connection between the valve cover and the first valve body and/or the threaded connection between the second valve body and the second port.
6. An apparatus for canceling static and dynamic hydraulic pressure fluctuations, comprising:
the valve comprises a first valve body (10) which is provided with a first connector (14), a second connector (18), a buffer sink groove (13) and a first liquid flow channel (11); one end of the first liquid flow channel is communicated with the buffer sink, and the other end of the first liquid flow channel is communicated with the second interface through a third liquid flow channel (15); the first interface is communicated with the buffer sink through a second liquid flow channel (12);
the valve cover (50) is arranged at one end of the first valve body, which is provided with the buffer sinking groove, a valve plate (60) is arranged between the valve cover and the first valve body, the valve plate covers the opening end of the buffer sinking groove to form a buffer cavity, and one side of the valve cover, which is close to the valve plate, is provided with a deformation sinking groove (51);
the second valve body (20) is arranged in the second interface, a valve core cavity (21) is arranged on one side of the second interface of the second valve body, and a third interface (22) communicated with the valve core cavity is arranged on the other side of the second valve body;
the first valve core (30) is arranged in the valve core cavity, a first joint sealing structure is arranged between the first valve core and the bottom of the second connector, a first elastic structure (90) is arranged between one side of the first valve core, which is far away from the first joint sealing structure, and the second valve body, a first valve hole (34) and a second valve hole (31) axially penetrate through the first valve core, and the aperture of the first valve hole is larger than that of the second valve hole;
the second valve core (40) comprises a large-diameter section (43) and a small-diameter section (42), the small-diameter section of the second valve core penetrates through the second valve hole from the first valve hole, a liquid flow gap is formed between the small-diameter section and the second valve hole, a second attaching sealing structure is arranged between the large-diameter section and the bottom of the first valve hole, and a second elastic structure (91) is arranged between the second valve core and the first valve body.
7. An arrangement for canceling static and dynamic hydraulic pressure fluctuations as claimed in claim 6, characterized in that a sealing plug (70) is provided between the valve plate and the first valve body.
8. An arrangement for canceling static and dynamic hydraulic pressure fluctuations as claimed in claim 6, characterized in that a sealing ring (80) is provided between the valve cover and the first valve body.
9. Device for canceling static and dynamic hydraulic fluctuations according to claim 6, characterized in that a sealing ring (80) is provided between the second valve body and the second port.
10. Device for eliminating static and dynamic hydraulic fluctuations according to any one of claims 6 to 9, characterized in that the threaded connection between the valve cover and the first valve body and/or the threaded connection between the second valve body and the second port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438734.2U CN210397295U (en) | 2019-08-30 | 2019-08-30 | Device for eliminating static and dynamic hydraulic fluctuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438734.2U CN210397295U (en) | 2019-08-30 | 2019-08-30 | Device for eliminating static and dynamic hydraulic fluctuation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397295U true CN210397295U (en) | 2020-04-24 |
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ID=70340148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921438734.2U Withdrawn - After Issue CN210397295U (en) | 2019-08-30 | 2019-08-30 | Device for eliminating static and dynamic hydraulic fluctuation |
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| Country | Link |
|---|---|
| CN (1) | CN210397295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425192A (en) * | 2019-08-30 | 2019-11-08 | 浙江诸暨万宝机械有限公司 | A kind of device for eliminating the fluctuation of static and dynamic hydraulic |
-
2019
- 2019-08-30 CN CN201921438734.2U patent/CN210397295U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425192A (en) * | 2019-08-30 | 2019-11-08 | 浙江诸暨万宝机械有限公司 | A kind of device for eliminating the fluctuation of static and dynamic hydraulic |
| CN110425192B (en) * | 2019-08-30 | 2024-04-23 | 浙江万安智驭汽车控制系统有限公司 | Device for eliminating static and dynamic hydraulic fluctuation |
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Address after: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Wanan Zhiyu Automobile Control System Co.,Ltd. Address before: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHUJI MANPOWER MACHINERY CO.,LTD. |
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| AV01 | Patent right actively abandoned | ||
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Granted publication date: 20200424 Effective date of abandoning: 20240423 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200424 Effective date of abandoning: 20240423 |