阅读说明：本技术 可变阻尼阀 (Variable damping valve ) 是由 黄文宸 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种可变阻尼阀,包括阀体和电磁铁组件,阀体上设有第一油口和第二油口,阀体内设有阀座,阀体内活动连接有阀芯,阀芯和阀体之间连接有弹簧,阀座周向上开设有多个与第二油口连通的过油孔,阀座内活动设置有移动座,阀芯上固连有顶杆,顶杆与移动座固连,移动座的外壁的部分与过油孔贴合以封堵过油孔,移动座的左端上开设有调节口,调节口与过油孔呈至少部分对齐状态使第一油口通过调节口和过油孔与第二油口连通,调节口与过油孔呈错开位置状态使调节口与过油孔断开从而使第一油口与第二油口断开,移动座平移使调节口与过油孔在两种状态下转换。本发明可变阻尼阀,能够确保阻尼阀在开启和关闭的过程中可以进行流量的调节。(The invention discloses a variable damping valve which comprises a valve body and an electromagnet assembly, wherein a first oil port and a second oil port are arranged on the valve body, a valve seat is arranged in the valve body, a valve core is movably connected in the valve body, a spring is connected between the valve core and the valve body, a plurality of oil passing holes communicated with the second oil port are formed in the periphery of the valve seat, a movable seat is movably arranged in the valve seat, a mandril is fixedly connected on the valve core and fixedly connected with the movable seat, the outer wall of the movable seat is partially attached to the oil passing holes to block the oil passing holes, an adjusting port is formed in the left end of the movable seat, the adjusting port and the oil passing holes are at least partially aligned to enable the first oil port to be communicated with the second oil port through the adjusting port and the oil passing holes, the adjusting port and the oil passing holes are staggered to enable the adjusting port and the oil passing holes to be disconnected to enable the first oil port and the second oil port to be disconnected, and the movable seat is translated to enable the adjusting port and the oil passing holes to be switched between two states. The variable damping valve can ensure that the flow can be adjusted in the opening and closing processes of the damping valve.)

1. A variable damping valve comprises a valve body and an electromagnet assembly arranged at the front end of the valve body, wherein a first oil port and a second oil port are arranged on the valve body, a valve seat is fixedly arranged in the valve body, a valve core positioned between the electromagnet assembly and the valve seat is movably connected in the valve body, a spring is connected between the right end of the valve core and the valve body, a plurality of oil passing holes communicated with the second oil port are formed in the circumferential direction of the valve seat, the variable damping valve is characterized in that a movable seat is movably arranged in the valve seat, a push rod is fixedly connected to the valve core, the left end of the push rod penetrates through the valve seat and is fixedly connected with the movable seat, the part of the outer wall of the movable seat is attached to the oil passing holes to block the oil passing holes, at least one adjusting hole corresponding to any oil passing hole is formed in the left end of the movable seat, the adjusting hole and the oil passing hole are at least partially aligned, so that the first oil port is communicated with the second oil passing hole through the adjusting hole and the oil passing hole, the adjusting opening and the oil passing hole are in a staggered position state, so that the adjusting opening and the oil passing hole are disconnected, the first oil port and the second oil port are disconnected, and the movable seat is translated in the valve seat to enable the first oil port and the second oil port to be communicated or disconnected.

2. The variable damping valve according to claim 1, wherein the movable seat is positioned at the left end of the valve seat, the adjusting port and the oil passing hole are in a staggered position, the first oil port and the second oil port are disconnected, the electromagnet assembly is powered on, and then the valve core pulls the ejector rod to enable the movable seat to move to the right, and the movable seat moves to the right to enable the adjusting port and the oil passing hole to be gradually overlapped, so that the first oil port is communicated with the second oil port through the adjusting port and the oil passing hole.

3. The variable damping valve of claim 2, wherein the adjustment port opens to the left of the movable seat.

4. The variable damping valve of claim 1, wherein the movable seat is positioned at the left end of the valve seat, the adjusting port and the oil passing hole are at least partially aligned, the first oil port is communicated with the second oil port, the electromagnet assembly is powered on, and then the valve core pulls the mandril to move the movable seat to the right, and the movable seat moves to the right to make the adjusting port and the oil passing hole in a staggered position state, so that the first oil port is disconnected from the second oil port.

5. The variable damping valve according to claim 4, wherein the adjustment opening opens in the middle of the movable seat.

6. The variable damping valve according to any one of claims 1 to 5, wherein the right end of the movable seat has a mounting hole, and the left end of the ejector rod is fixedly and hermetically connected in the mounting hole.

7. The variable damping valve of claim 6, wherein the right end of the moving seat is further provided with a first balance hole, and the first balance hole equalizes oil pressure inside the moving seat and right oil pressure.

8. The variable damping valve of claim 7, wherein the valve core is axially provided with a second balance hole, the second balance hole is communicated with the oil through port, and the second balance hole enables oil pressures at two ends of the valve core to be equal.

Technical Field

The invention relates to the field of automobiles and industrial equipment, in particular to a variable damping valve.

Background

Some shock absorbers used for vehicle suspensions include a shock absorber with a damping valve that can vary a damping force. The existing damping valve in the application of the shock absorber can cause a small damping force adjusting range due to too small flow.

Disclosure of Invention

The invention mainly solves the technical problem of providing a variable damping valve which can ensure that the flow can be regulated in the opening and closing processes of the damping valve.

In order to solve the technical problems, the invention adopts a technical scheme that: the variable damping valve comprises a valve body and an electromagnet assembly arranged at the front end of the valve body, wherein a first oil port and a second oil port are arranged on the valve body, a valve seat is fixedly arranged in the valve body, a valve core positioned between the electromagnet assembly and the valve seat is movably connected in the valve body, a spring is connected between the right end of the valve core and the valve body, a plurality of oil passing holes communicated with the second oil port are formed in the circumferential direction of the valve seat, a movable seat is movably arranged in the valve seat, a mandril is fixedly connected to the valve core, the left end of the mandril penetrates through the valve seat and is fixedly connected with the movable seat, the part of the outer wall of the movable seat is attached to the oil passing holes to block the oil passing holes, at least one adjusting port corresponding to any oil passing hole is formed in the left end of the movable seat, and the adjusting ports and the oil passing holes are in at least partial alignment state to enable the first oil port to be communicated with the second oil port through the adjusting ports and the oil passing holes, the adjusting opening and the oil passing hole are in a staggered position state, so that the adjusting opening and the oil passing hole are disconnected, the first oil port and the second oil port are disconnected, and the movable seat is translated in the valve seat to enable the first oil port and the second oil port to be communicated or disconnected.

In a preferred embodiment of the present invention, when the movable seat is located at the left end of the valve seat, the adjusting opening and the oil passing hole are in a staggered position, the first oil port and the second oil port are disconnected, the electromagnet assembly is powered on, and then the valve core pulls the ejector rod to move the movable seat to the right, and the movable seat moves to the right to gradually overlap the adjusting opening and the oil passing hole, so that the first oil port is communicated with the second oil port through the adjusting opening and the oil passing hole.

In a preferred embodiment of the present invention, the adjusting opening is opened at the left side of the movable base.

In a preferred embodiment of the present invention, when the movable seat is located at the left end of the valve seat, the adjusting opening and the oil passing hole are at least partially aligned, the first oil port is communicated with the second oil port, the electromagnet assembly is powered on, and the plunger is pulled by the valve core to move the movable seat to the right, and the movable seat moves to the right to make the adjusting opening and the oil passing hole in a staggered position, so that the first oil port is disconnected from the second oil port.

In a preferred embodiment of the invention, the adjusting opening is opened in the middle of the movable base.

In a preferred embodiment of the invention, the right end of the movable seat is provided with a mounting hole, and the left end of the ejector rod is fixedly and hermetically connected in the mounting hole.

In a preferred embodiment of the present invention, the right end of the movable base is further provided with a first balance hole, and the first balance hole enables the oil pressure inside the movable base and the oil pressure on the right side to be equal.

In a preferred embodiment of the present invention, the valve core is axially provided with a second balance hole, the second balance hole is communicated with the oil passing port, and the second balance hole enables oil pressures at two ends of the valve core to be equal.

The invention has the beneficial effects that: the variable damping valve can ensure that the flow can be adjusted in the opening and closing processes of the damping valve.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of a normally closed variable damper valve of the present invention;

FIG. 2 is a schematic structural diagram of the variable damping valve of FIG. 1 with the adjusting port and the oil passing hole in a staggered position;

FIG. 3 is a schematic structural view of the variable damping valve of FIG. 1 with the metering orifice at least partially aligned with the oil passing orifice;

FIG. 4 is a schematic structural view of a preferred embodiment of the normally open variable damper valve of the present invention;

FIG. 5 is a schematic structural view of the variable damping valve of FIG. 4 with the adjustment port at least partially aligned with the oil passing hole;

FIG. 6 is a schematic structural view of the variable damping valve of FIG. 4 with the adjustment port and the oil passing hole being in a staggered position;

the parts in the drawings are numbered as follows: 1. the valve comprises a valve body, 11, a first oil port, 12, a second oil port, 2, an electromagnet assembly, 3, a valve seat, 31, an oil passing hole, 4, a valve core, 41, a second balance hole, 5, a spring, 6, a movable seat, 61, an adjusting hole, 62, a mounting hole, 63, a first balance hole, 7 and an ejector rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiment 1, please refer to fig. 1 to 3, a normally closed variable damping valve includes a valve body 1 and an electromagnet assembly 2 installed at the front end of the valve body 1, the valve body 1 is provided with a first oil port 11 and a second oil port 12, a valve seat 3 is fixedly installed in the valve body 1, a valve core 4 located between the electromagnet assembly 2 and the valve seat 3 is movably connected in the valve body 1, a spring 5 is connected between the right end of the valve core and the valve body, the valve seat 3 is circumferentially provided with a plurality of oil passing holes 31 communicated with the second oil port 12, a movable seat 6 is movably installed in the valve seat 3, a push rod 7 is fixedly connected to the valve core 4, the left end of the push rod 7 passes through the valve seat 3 and is fixedly connected with a movable seat 6, the outer wall of the movable seat 6 is partially attached to the oil passing holes 31 to block the oil passing holes 31, the left end of the movable seat 6 is provided with at least one adjusting hole 61 corresponding to any oil passing hole, the adjusting hole 61 is aligned with the oil passing hole 31 to enable the first oil port 11 to be communicated with the second oil passing hole 12 through the adjusting hole 61 and the oil passing hole 31, the adjusting port 61 and the oil passing hole 31 are in a staggered position state, so that the adjusting port 61 and the oil passing hole 31 are disconnected, the first oil port 11 and the second oil port 12 are disconnected, and the movable seat 6 translates in the valve seat to enable the first oil port 11 and the second oil port 12 to be communicated or disconnected.

In addition, when the movable seat 6 is located at the left end of the valve seat 3, the adjusting opening 61 and the oil passing hole 31 are in a staggered position state, the first oil port 11 and the second oil port 12 are disconnected, the electromagnet assembly 2 is powered on and pulls the ejector rod 7 through the valve core 4 to enable the movable seat 6 to move to the right, and the movable seat 6 moves to the right to enable the adjusting opening 61 and the oil passing hole 31 to be gradually overlapped, so that the first oil port 11 is communicated with the second oil port 12 through the adjusting opening 61 and the oil passing hole 31.

Further, the adjustment opening 61 is opened on the left side of the movable base 6. The shape of adjusting port 61 can be triangle-shaped, circular, arc or other shapes, adjusts the mouth size and can rationally select according to the flow needs, and the position is in as long as adjusting port and oil passing hole under the assurance initial condition and be staggered position, ensures for being in normally closed state.

The right end of the movable base 6 has a mounting hole 62, and the left end of the rod 7 is fixedly and hermetically connected to the mounting hole 62.

In addition, the right end of the movable seat 6 is also provided with a first balance hole 63, the oil pressure inside the movable seat 6 is equal to the oil pressure on the right side through the first balance hole 63, the movable seat 6 is ensured not to move due to the oil pressure, and the movable seat 6 can only be driven to move through the ejector rod 7.

In addition, a second balance hole 41 is formed in the valve element 4 in the axial direction, the second balance hole 41 communicates with the oil through port 31, and the second balance hole 41 equalizes the oil pressures at both ends of the valve element 4. The valve core 4 is not affected by the oil pressure during the operation, the valve core 4 moves to the right only by the acting force of the electromagnetic valve assembly 2, and the reset is realized by the elastic force of the spring 5.

The specific working principle of the invention is as follows: under initial condition, because adjust mouth 61 and cross the oilhole 31 and be in and be the outer wall that is the removal seat 6 between first hydraulic fluid port 11 and the second hydraulic fluid port 12 this moment of staggered position state and block, two hydraulic fluid ports can't communicate, when the circular telegram of electro-magnet subassembly 2, case 4 begins to move to the right, case 4 moves the removal seat 6 through ejector pin 7 synchronous pulling and moves to the right, move the in-process that the seat 6 moved to the right, adjust the synchronous right shift of mouth 61, adjust the mouth 61 and cross the position that begins to appear the alignment between the oilhole 31, the fluid of first hydraulic fluid port 11 gets into through adjusting mouth 61 and crosses oilhole 31 this moment, then flow from second hydraulic fluid port 12, because adjust the position between mouth 61 and the oilhole 31 along with moving the right side of seat 6 and move grow gradually, the fluid flow that first hydraulic fluid port 11 got into second hydraulic fluid port 12 at this moment moves to the rightmost end gradually until moving the seat. After electromagnet assembly 2 loses the electricity, spring 5 promotes valve core 4 and moves to the left to the messenger moves the seat 6 and moves to the left in step, and the flow between first hydraulic fluid port 11 and the second hydraulic fluid port 12 diminishes gradually, until moving to initial position, breaks off between first hydraulic fluid port 11 and the second hydraulic fluid port 12.

Embodiment 2, please refer to fig. 4 to 6, a normally open variable damping valve, which is different from embodiment 1 in that, when the movable seat 6 is located at the left end of the valve seat 3, the adjusting port 61 and the oil passing hole 31 are at least partially aligned, the first oil port 11 is communicated with the second oil port 12, the electromagnet assembly 2 is powered on, and then the plunger 7 is pulled by the spool 6 to move the movable seat 6 to the right, and the movable seat 6 moves to the right to make the adjusting port 61 and the oil passing hole 31 in a staggered position state, so that the first oil port 11 is disconnected from the second oil port 12. The adjustment opening 61 is opened in the middle of the movable base 6.

The adjusting port 61 and the oil passing hole 31 are at least partially aligned in the initial state, the first oil port 11 is communicated with the second oil port 12, the electromagnet assembly 2 is electrified, the movable seat 6 moves rightwards, and the first oil port 11 is disconnected from the second oil port 12. When the electromagnet assembly 2 is powered off, the movable seat 6 is reset through the valve core 4, so that the variable damping valve is restored to a normally open state.

Different from the prior art, the variable damping valve can ensure that the flow can be regulated in the opening and closing processes of the damping valve.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.