CN212130936U - Reversing system - Google Patents
Reversing system Download PDFInfo
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- CN212130936U CN212130936U CN202020578860.4U CN202020578860U CN212130936U CN 212130936 U CN212130936 U CN 212130936U CN 202020578860 U CN202020578860 U CN 202020578860U CN 212130936 U CN212130936 U CN 212130936U
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Abstract
The utility model discloses a switching-over system, include: the valve comprises a valve core, two liquid distribution plates arranged on two side surfaces of the valve core and a transmission device driving the valve core to rotate; the valve core comprises a valve core main body, wherein each side surface of the valve core main body is provided with a plurality of valve core liquid through holes distributed on the circumference of a circle taking the axis of the valve core main body as the center of a circle, two valve core liquid through holes on the same radius form a group of liquid through hole groups, and the two valve core liquid through holes of each group of liquid through hole groups on one side of the valve core main body are respectively communicated with the two valve core liquid through holes of the corresponding liquid through hole group on the other side of the valve core main body to form two liquid channels; the liquid channel communication mode of each group of liquid through hole groups is different from the liquid channel connection mode of the next group of liquid through hole groups; each liquid distribution plate is provided with two liquid distribution plate liquid through holes which are discontinuously communicated with the valve core liquid through holes. The utility model discloses a mechanical type's rotatory case only needs to provide a stable rotation rate, can realize lasting, stable switching-over repeatedly.
Description
Technical Field
The utility model relates to a hydraulic system correlation technique field, especially a switching-over system.
Background
Reversing of a hydraulic system is a common function, and is generally achieved by a manual or electromagnetic reversing valve. In the automatic control system, an electromagnetic reversing valve is used for realizing automatic reversing. Common electromagnetic directional valves all use a cylindrical valve core to move along the axis direction in a valve core hole and stop at different functional positions, so as to change the direction of liquid. In some application occasions needing quick and continuous reversing, the speed and the reliability of the common electromagnetic reversing valve can not meet the requirements. In a reciprocating impact hydraulic system, a reciprocating pump and a closed hydraulic system can be used for reversing, but the system is complex and has low reliability.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a commutation system to solve the technical problem that the commutation system in the prior art is unreliable.
The utility model provides a switching-over system, include: the valve comprises a valve core, two liquid distribution plates arranged on two side surfaces of the valve core and a transmission device for driving the valve core to rotate;
the valve core comprises a valve core main body, each side surface of the valve core main body is provided with a plurality of valve core liquid through holes distributed on the circumference of a circle with the axis of the valve core main body as the center of a circle, two valve core liquid through holes on the same radius are a group of liquid through hole groups, two valve core liquid through holes of each group of liquid through hole groups on one side of the valve core main body are respectively communicated with two valve core liquid through holes of the liquid through hole group corresponding to the other side of the valve core main body to form two liquid channels, and the liquid channel communication mode of the liquid channels comprises: the corresponding valve core liquid through holes are correspondingly communicated, and the corresponding valve core liquid through holes are in cross communication;
the liquid channel communication mode of each group of the through liquid hole groups is different from the liquid channel connection mode of the next group of the adjacent through liquid hole groups;
and each liquid distribution plate is provided with two liquid distribution plate liquid through holes which are discontinuously communicated with the valve core liquid through holes.
The valve core further comprises a valve core rotating shaft penetrating through the axis of the valve core main body, each liquid distribution plate is further provided with a shaft mounting hole, the liquid distribution plate liquid through holes are distributed on the circumference of a circle with the axis of the shaft mounting hole as the center of a circle, the two liquid distribution plate liquid through holes are located at the same radius, the first end of the valve core rotating shaft penetrates through the shaft mounting hole of the liquid distribution plate on one side to be connected with the transmission device, the second end of the valve core rotating shaft penetrates through the shaft mounting hole of the liquid distribution plate on the other side, and the circle where the valve core liquid through holes on the two side faces of the valve core main body are concentric with the circle where the liquid distribution plate liquid through holes of the two liquid distribution plates are located and have the same radius length.
Furthermore, the liquid distribution plate comprises a main plate provided with the shaft mounting hole and a liquid through hole of the liquid distribution plate, and a joint seat used for connecting a liquid inlet and return pipeline of the liquid supply system and a liquid inlet and return pipeline of the execution unit, wherein two joint seats are arranged on the main plate, and each joint seat is communicated with the liquid through hole of the liquid distribution plate.
Furthermore, the liquid distribution plate is further provided with a main sealing groove which is coaxial with the liquid through hole of the liquid distribution plate and an auxiliary sealing groove which is coaxial with the shaft mounting hole, and sealing elements are arranged in the main sealing groove and the auxiliary sealing groove.
Furthermore, the valve core liquid through holes of the liquid through hole groups corresponding to the two side surfaces of the valve core main body are opposite, and the liquid through holes of the liquid distribution plates corresponding to the two liquid distribution plates are opposite.
Further:
the first liquid through hole group on one side of the valve core main body corresponds to the second liquid through hole group on the other side of the valve core main body, a first group of first liquid through holes in the first liquid through hole group are opposite to a second group of first liquid through holes in the second liquid through hole group, and a first group of second liquid through holes in the first liquid through hole group are opposite to a second group of second liquid through holes in the second liquid through hole group;
a third through hole group, which is adjacent to the first through hole group on one side of the valve core main body, corresponds to a fourth through hole group, which is adjacent to the second through hole group on the other side of the valve core main body, a third group of first through holes in the third through hole group are opposite to a fourth group of first through holes in the fourth through hole group, and a third group of second through holes in the third through hole group are opposite to a fourth group of second through holes in the fourth through hole group;
the first group of first liquid through holes are communicated with the second group of first liquid through holes, the first group of second liquid through holes are communicated with the second group of second liquid through holes, the third group of first liquid through holes are communicated with the fourth group of second liquid through holes, and the third group of second liquid through holes are communicated with the fourth group of first liquid through holes.
Furthermore, the valve core main body is integrally formed, and the two valve core liquid through holes of each group of liquid through hole groups on one side of the valve core main body are communicated with the two valve core liquid through holes of the corresponding liquid through hole groups on the other side of the valve core main body through a channel arranged in the valve core main body.
Furthermore, the two valve core liquid through holes of each group of liquid through hole groups on one side of the valve core main body are communicated with the two valve core liquid through holes of the corresponding liquid through hole groups on the other side of the valve core main body through metal pipes arranged in the valve core main body.
And the hydraulic control valve further comprises two mounting bearing seats provided with bearings and a mounting base for supporting the valve core, the liquid distribution plate, the transmission device and the mounting bearing seats, wherein one end of the valve core penetrates through the bearing of one mounting bearing seat to be connected with the transmission device, and the other end of the valve core is supported by the bearing of the other mounting bearing seat.
Still further, the transmission device comprises a transmission mechanism and a transmission motor for driving the transmission mechanism, and the transmission mechanism is connected with one end of the valve core.
The utility model discloses can solve and need last in the hydraulic system of high-speed relapse switching-over, the problem that solenoid valve operation is unreliable and reciprocating pump switching-over system is complicated through the rotatory case of mechanical type, only needs to provide a stable rotation rate, can realize lasting, stable relapse switching-over. Under the condition that a servo system is used for providing rotary power for the valve core, system reversing controlled according to a program can be realized, and a reversing system is simplified.
Drawings
Fig. 1 is a schematic structural diagram of a reversing system according to an embodiment of the present invention;
fig. 2 is an exploded view of a reversing system according to an embodiment of the present invention;
fig. 3 is a front view of a reversing system according to an embodiment of the present invention;
fig. 4 is a schematic view of a valve core structure of a reversing system according to an embodiment of the present invention;
fig. 5 is a front view of a valve element of a reversing system according to an embodiment of the present invention;
fig. 6 is a top view of a valve element of a reversing system according to an embodiment of the present invention;
fig. 7 is a schematic view of valve element fluid holes on two sides of a valve element of a reversing system according to another embodiment of the present invention;
fig. 8 is a schematic view of a valve cartridge of a reversing system according to another embodiment of the present invention;
fig. 9 is a schematic structural view of a liquid distribution plate of a reversing system according to an embodiment of the present invention;
fig. 10 is a front view of a liquid distribution plate of a reversing system according to an embodiment of the present invention;
fig. 11 is a side view of a liquid distribution plate of a reversing system according to an embodiment of the present invention;
fig. 12 is a rear view of a liquid distribution plate of a reversing system according to an embodiment of the present invention.
Description of the labeling:
1-a valve core; 11-a valve cartridge body; 12-spool rotation axis; 13-valve core liquid through hole; 1311-first set of first through holes; 1312-a first set of second liquid communication holes; 1321-a second set of first liquid passage holes; 1322-a second set of second weep holes; 1331-a third set of first liquid passage holes; 1332-a third set of second through-holes; 1341-a fourth set of first liquid passage holes; 1342-a fourth set of second liquid communication holes; 2-liquid distribution plate; 21-shaft mounting holes; 22-liquid through holes of the liquid distribution plate; 23-a main board; 24-a joint seat; 25-a primary seal groove; 26-auxiliary sealing groove; 27-a liquid distribution plate bottom plate; 3-a transmission device; 31-a transmission gear; 32-a hydraulic motor; 4, mounting a bearing seat; and 5, mounting a base.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to fig. 3, the present invention 1 provides a reversing system, including: the valve comprises a valve core 1, two liquid distribution plates 2 arranged on two side surfaces of the valve core 1 and a transmission device 3 for driving the valve core 1 to rotate;
the valve core 1 comprises a valve core main body 11, each side surface of the valve core main body 11 is provided with a plurality of valve core liquid through holes 13 distributed on the circumference of a circle with the axis of the valve core main body 11 as the center of a circle, two valve core liquid through holes 13 on the same radius are a group of liquid through hole groups, two valve core liquid through holes 13 of each group of liquid through hole groups on one side of the valve core main body 11 are respectively communicated with two valve core liquid through holes 13 of the liquid through hole group corresponding to the other side of the valve core main body 11 to form two liquid channels, and the liquid channel communication mode of the liquid channels comprises: the corresponding valve core liquid through holes 13 are correspondingly communicated, and the corresponding valve core liquid through holes 13 are in cross communication;
the liquid channel communication mode of each group of the through liquid hole groups is different from the liquid channel connection mode of the next group of the adjacent through liquid hole groups;
each liquid distribution plate 2 is provided with two liquid distribution plate liquid through holes 22 which are discontinuously communicated with the valve core liquid through holes 13.
Particularly, the utility model discloses a switching-over system is arranged in the hydraulic system that the load needs to last the switching-over to the speed that rotates according to the case adjusts the switching-over frequency. The medium used by the quick reversing system is hydraulic oil.
When the system operates, the transmission device 3 drives the valve core 1 to rotate, a plurality of valve core liquid through holes 13 are respectively arranged on two side faces of a valve core main body 11 of the valve core 1, every 180-degree two valve core liquid through holes 13 form a group of liquid through hole groups, and the two valve core liquid through holes 13 of each group of liquid through hole groups on one side of the valve core main body 11 are respectively communicated with the two valve core liquid through holes 13 of the corresponding liquid through hole group on the other side of the valve core main body 11 to form two liquid channels. There are two ways of communicating the liquid channels. One way of communicating the liquid channels is a way of correspondingly communicating the valve core liquid through holes 13, that is, in the two valve core liquid through holes 13 of the liquid through hole group on one side and the two valve core liquid through holes 13 of the liquid through hole group on the other side, the valve core liquid through hole 13 on one side communicates with the valve core liquid through hole 13 corresponding to the other side to form a liquid channel. The other liquid channel communication mode is a mode that the corresponding valve core liquid through holes 13 are in cross communication, namely, the two valve core liquid through holes 13 of the liquid through hole group at one side are communicated with the two valve core liquid through holes 13 of the liquid through hole group corresponding to the other side, and the valve core liquid through hole 13 at one side is communicated with the valve core liquid through hole 13 which is not crossed and corresponding to the other side to form a liquid channel.
Specifically, the spool liquid through hole 13 on one side corresponds to the spool liquid through hole 13 on the other side, which means that the angle of the spool liquid through hole 13 is the same as or has a preset difference with respect to the angle of the spool liquid through hole 13 on the other side, and the difference is consistent with all the corresponding spool liquid through holes 13.
The liquid distribution plate 2 is correspondingly arranged on two sides of the valve core 1. When the valve core 1 rotates, at a certain moment, when two valve core through holes 13 of a group of through holes adopting a corresponding communication mode on the left side of the valve core 1 are communicated with the liquid distribution plate through holes 22 of the liquid distribution plate 2 on the left side, the two valve core through holes 13 of the through hole group corresponding to the right side are also communicated with the liquid distribution plate through holes 22 of the liquid distribution plate 2 on the right side. Due to the adoption of the corresponding communicated liquid channel communication mode, one path of liquid medium flows out from the valve core liquid through hole 13 corresponding to the right side and the valve core liquid through hole 22 corresponding to the right side through the valve core liquid through hole 22 corresponding to the left side and the valve core liquid through hole 13 corresponding to the right side through the valve core liquid through hole 13 corresponding to the right side, and the other path of liquid medium flows out from the valve core liquid through hole 13 corresponding to the left side and the valve core liquid through hole 22 corresponding to the left side through the valve core liquid through hole 22 corresponding to the right side and the valve core liquid through hole 13 corresponding to the left side simultaneously.
At the next time, the valve element liquid through hole 13 of the valve element 1 and the liquid distribution plate liquid through hole 22 of the liquid distribution plate 2 are closed.
At the next moment, the adjacent set of through hole groups adopt a cross communication mode, so when the two valve core through holes 13 of the through hole group adopting the cross communication mode on the left side of the valve core 1 are communicated with the liquid distribution plate through holes 22 of the liquid distribution plate 2 on the left side, the two valve core through holes 13 of the corresponding through hole group on the right side are also communicated with the liquid distribution plate through holes 22 of the liquid distribution plate 2 on the right side. Because the liquid channel communication mode of cross communication is adopted, the liquid medium on the left side flows out from the valve core liquid through hole 13 crossed on the right side and the valve core liquid through hole 22 crossed on the left side and the valve core liquid through hole 13 crossed on the right side, and the liquid medium on the right side flows out from the valve core liquid through hole 13 corresponding to the left side and the valve core liquid through hole 22 corresponding to the left side through the valve core liquid through hole 22 crossed on the right side and the valve core liquid through hole 13 crossed on the right side.
Therefore, the utility model discloses a switching-over system, at case 1 pivoted in-process, liquid medium can be with certain frequency repeated switching-over from the circulation direction of joining in marriage liquid board through liquid hole 22.
Preferably, the number of the valve core liquid through holes 13 on both sides of the valve core main body 11 is the same and is a multiple of 4, for example: 4. 8, 12, etc.
The utility model discloses can solve and need last in the hydraulic system of high-speed relapse switching-over, the problem that solenoid valve operation is unreliable and reciprocating pump switching-over system is complicated through the rotatory case of mechanical type, only needs to provide a stable rotation rate, can realize lasting, stable relapse switching-over. Under the condition that a servo system is used for providing rotary power for the valve core, system reversing controlled according to a program can be realized, and a reversing system is simplified.
In one embodiment, the valve core 1 further includes a valve core rotation shaft 12 penetrating through the shaft center of the valve core main body 11, each of the liquid distribution plates 2 is further provided with a shaft installation hole 21, the liquid distribution plate liquid through holes 22 are distributed on the circumference of a circle with the shaft center of the shaft installation hole 21 as the center, the two liquid distribution plate liquid through holes 22 are located at the same radius, a first end of the valve core rotation shaft 12 penetrates through the shaft installation hole 21 of one side of the liquid distribution plate 2 to be connected with the transmission device 3, a second end of the valve core rotation shaft 12 penetrates through the shaft installation hole 21 of the other side of the liquid distribution plate 2, and the circle where the valve core liquid through holes 13 located on the two side surfaces of the valve core main body 11 is concentric with the circle where the liquid distribution plate liquid through holes 22 located of the two liquid distribution plates 2 and has the same radius length.
In this embodiment, the liquid distribution plate through holes 22 are distributed on the circumference of a circle with the axis of the shaft mounting hole 21 as the center of the circle, and the circle where the valve core through hole 13 on the two side surfaces of the valve core main body 11 is located is concentric with the circle where the liquid distribution plate through holes 22 of the two liquid distribution plates 2 are located and has the same radius length, so that in the process of high-speed rotation of the valve core 1, the valve core through hole 13 and the liquid distribution plate through hole 22 are both located on concentric circles with the same radius length, and alignment of the valve core through hole 13 and the liquid distribution plate through hole 22 is ensured.
As shown in fig. 8 to 11, in one embodiment, the liquid distribution plate 2 includes a main plate 23 provided with the shaft mounting hole 21 and the liquid distribution plate liquid through hole 22, and a joint seat 24 for connecting a liquid inlet/return pipeline of a liquid supply system and a liquid inlet/return pipeline of an execution unit, two joint seats 24 are provided on the main plate 23, and each joint seat 24 is communicated with one liquid distribution plate liquid through hole 22.
The joint seat 24 is added to the embodiment to be matched with and connected with the liquid inlet and return pipelines of the liquid supply system and the liquid inlet and return pipelines of the execution unit.
Preferably, the liquid distribution plate 2 further includes a liquid distribution plate bottom plate 27 that supports the main plate 23.
In one embodiment, the liquid distribution plate 2 is further provided with a main sealing groove 25 coaxial with the liquid distribution plate liquid through hole 22 and an auxiliary sealing groove 26 coaxial with the shaft mounting hole 21, and sealing members are arranged in the main sealing groove 25 and the auxiliary sealing groove 26.
Preferably, the liquid distribution plate 2 comprises four sealing grooves, wherein the four sealing grooves comprise two main sealing grooves 25 which are coaxial with the liquid distribution plate liquid through hole 22, and sealing elements are arranged in the main sealing grooves, so that the system does not leak liquid when liquid with pressure flows through the valve core liquid through hole 13 on the valve core 1 in the rotating process of the valve core 1. The other two sealing grooves are auxiliary sealing grooves 26, and prevent liquid in the liquid distribution plate liquid through hole 22 from flowing out and leaking out of the system when the valve core liquid through hole 13 is separated from the range of the main sealing groove.
The sealing groove is arranged in the embodiment to ensure that the system does not leak liquid.
In one embodiment, the valve core through holes 13 of the corresponding through hole groups on the two side surfaces of the valve core main body 11 are opposite, and the liquid distribution plate through holes 22 of the two liquid distribution plates 2 are opposite.
In this embodiment, the valve core through holes 13 of the corresponding through hole group are opposite, and the liquid distribution plate through holes 22 corresponding to the two liquid distribution plates 2 are opposite, so that the difficulty in manufacturing the liquid channel connection is reduced.
In one embodiment:
a first through hole group on one side of the valve core body 11 corresponds to a second through hole group on the other side of the valve core body 11, a first group of first through holes 1311 in the first through hole group are opposite to a second group of first through holes 1321 in the second through hole group, and a first group of second through holes 1312 in the first through hole group are opposite to a second group of second through holes 1322 in the second through hole group;
a third through hole group, which is adjacent to the first through hole group on one side of the valve core main body 11, corresponds to a fourth through hole group, which is adjacent to the second through hole group on the other side of the valve core main body 11, a third group of first through holes 1331 in the third through hole group are opposite to a fourth group of first through holes 1341 in the fourth through hole group, and a third group of second through holes 1332 in the third through hole group are opposite to a fourth group of second through holes 1342 in the fourth through hole group;
the first set of first liquid passage holes 1311 communicates with the second set of first liquid passage holes 1321, the first set of second liquid passage holes 1312 communicates with the second set of second liquid passage holes 1322, the third set of first liquid passage holes 1331 communicates with the fourth set of second liquid passage holes 1342, and the third set of second liquid passage holes 1332 communicates with the fourth set of first liquid passage holes 1341.
Specifically, the first and second sets of through-holes are in corresponding communication, and the third and fourth sets of through-holes are in cross communication.
In one embodiment, the valve core body 11 is integrally formed, and the two valve core through holes 13 of each set of through holes on one side of the valve core body 11 are communicated with the two valve core through holes 13 of the corresponding set of through holes on the other side of the valve core body 11 through a channel arranged in the valve core body 11.
The valve core main body 11 of the embodiment is integrally formed, and channels are arranged in the valve core main body through drilling, corrosion, reverse molding and other modes, so that the valve core liquid through holes 13 on the two sides are communicated.
As shown in fig. 7, in one embodiment, the two valve core through holes 13 of each set of through holes on one side of the valve core body 11 are communicated with the two valve core through holes 13 of the corresponding set of through holes on the other side of the valve core body 11 through a metal pipe 14 arranged in the valve core body 11.
The valve core main body 11 of the embodiment is hollow, and a plurality of metal pipes 14 are arranged inside the valve core main body and welded to achieve communication of the valve core liquid through holes 13 on two sides.
In one embodiment, the valve further includes two mounting bearing seats 4 provided with bearings, and a mounting base 5 supporting the valve element 1, the liquid distribution plate 2, the transmission device 3, and the mounting bearing seats 4, wherein one end of the valve element 1 passes through one bearing of the mounting bearing seat 4 to be connected with the transmission device 3, and the other end of the valve element is supported by the other bearing of the mounting bearing seat 4.
This embodiment is through installation bearing frame 4 bearing case 1, through the remaining part of installation base 5 bearing.
In one embodiment, the transmission device 3 includes a transmission mechanism and a transmission motor for driving the transmission mechanism, and the transmission mechanism is connected to one end of the valve core 1.
Specifically, the transmission mechanism includes, but is not limited to, a transmission gear 31, a belt, or a chain. The drive motor includes, but is not limited to, a hydraulic motor 32, an electric motor, or a pneumatic motor.
As the best embodiment of the present invention, a fast reversing system comprises: the mounting bearing seat 4, the liquid distribution plate 2, the valve core 1, the transmission gear 31, the hydraulic motor 32 and the mounting base 5.
The quick reversing system is used in a hydraulic system with a load needing to be continuously reversed, and the reversing frequency is adjusted according to the rotating speed of the valve core. The medium used is hydraulic oil.
When the system operates, the hydraulic motor 32 drives the valve core 1 to rotate through gear transmission, and the valve core 1 comprises a valve core main body 11 and a valve core rotating shaft 12. Eight valve core liquid through holes 13 are uniformly distributed on the valve core main body 11, two valve core liquid through holes 13 at every 180 degrees form a group, and the interval directions of each group are opposite. The valve core 1 is matched with the liquid distribution plate 2, and the reversing of the hydraulic system is realized through a liquid inlet hole and a liquid return hole on the liquid distribution plate 2. Installation bearing frame 4 is the support of case 1, for case 1 provides the mounted position, selects for use standard installation bearing frame. The liquid distribution plate 2 is a symmetrical part and is respectively arranged on two sides of the valve core 1.
The liquid distribution plate 2 is composed of a main plate 23, a joint seat 24 and a liquid distribution plate bottom plate 27, and all the components are directly connected together through welding. The main feature of the main plate 23 is that three through holes and four sealing grooves are formed in the main plate, two of the three holes are liquid distribution plate liquid through holes 22 serving as liquid inlet holes or liquid return holes, and the other one is a shaft mounting hole 21 for the valve core rotating shaft 12 of the valve core 1 to pass through. Two of the four sealing grooves, which are coaxial with the liquid through hole 22 of the liquid distribution plate, are main sealing grooves 25, and seals are arranged in the main sealing grooves, so that the system does not leak liquid when pressurized liquid flows through the liquid through hole 13 of the valve core 1 on the valve core 1 in the rotating process of the valve core 1. The other two seal grooves are auxiliary seal grooves 26, which prevent the liquid in the valve core liquid through hole 13 from flowing out and leaking out of the system when the valve core liquid through hole is separated from the range of the main seal groove 25. And the other side of the liquid distribution plate is provided with a joint seat 24 which is used for connecting a liquid inlet and return pipeline of the liquid supply system and a liquid inlet and return pipeline of the execution unit.
The valve core 1 is a key element of the system, and is a part of a revolving body structure, and comprises a valve core main body 11 and a valve core rotating shaft 12, as shown in fig. 4 to 6.
The two sides of the valve core 1 are installation positions, one end of a valve core rotating shaft 12 is installed in the installation bearing seat 4, and the other end of the valve core rotating shaft is installed on the installation bearing seat 4 and penetrates through the installation bearing seat 4, so that the valve core rotating shaft is connected with the transmission component 3 and drives the valve core main body 11 to rotate. The intermediate portion is the main body portion of the valve cartridge. Four groups of eight valve core liquid through holes 13 are uniformly distributed on the valve core main body 11, and two holes at every 180 degrees are a group of liquid through holes which are respectively used as a liquid inlet hole and a liquid return hole. Through the arrangement of the liquid channels in the valve core main body 11, the valve core liquid through holes 13 of each group of liquid through hole groups are opposite to the liquid inlet and return directions of the valve core liquid through holes 13 of the next adjacent group of liquid through hole groups, and the valve core main body 11 is reversed when rotating to the next position.
The transmission gear 31, the hydraulic motor 32 and the mounting base 5 are auxiliary parts of the system and are used for providing rotary power for the valve core 1 and mounting various components.
The utility model relates to a novel quick switching-over hydraulic system replaces the switching-over system that solenoid valve switching-over and reciprocating pump realized, realizes high-speed, the switching-over that lasts. One side of a main plate 23 of the liquid distribution plate 2 is used for connecting a pipeline through a joint seat 24, the other side of the main plate is connected with a valve core liquid through hole 13 on the valve core 1 through two liquid distribution plate liquid through holes 22, the liquid path is reversed when the valve core 1 rotates, and the sealing on the liquid distribution plate 2 can ensure that the valve core 1 does not leak liquid in the rotating process. The valve core 1 is arranged on the installation base 5 through the installation bearing seat 4, one end of the valve core 1 is provided with a gear which is meshed with another transmission gear 31 driven by a hydraulic motor 32 to realize the rotation of the valve core 1, and the rotation speed of the valve core 1 is adjusted by adjusting the rotation speed of the hydraulic motor 32 to further realize the adjustment of the reversing frequency. The utility model discloses in the switching-over system of explaining only be used for realizing the conversion of liquid flow direction, switching-over frequency, beat, last switching-over still intermittent type switching-over are realized by supporting system. The utility model discloses in only describe the component structure and the principle of system, specific size can carry out detailed design according to the user demand of difference.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A commutation system, comprising: the liquid distribution valve comprises a valve core (1), two liquid distribution plates (2) arranged on two side faces of the valve core (1) and a transmission device (3) for driving the valve core (1) to rotate;
the valve element (1) comprises a valve element main body (11), each side surface of the valve element main body (11) is provided with a plurality of valve element liquid through holes (13) distributed on the circumference of a circle with the axis of the valve element main body (11) as the center of a circle, the valve element liquid through holes (13) on the same radius are a group of liquid through hole groups, the two valve element liquid through holes (13) of each group of liquid through hole groups on one side of the valve element main body (11) are communicated with the two valve element liquid through holes (13) of the liquid through hole group corresponding to the other side of the valve element main body (11) respectively to form two liquid channels, and the liquid channel communication mode of the liquid channels comprises: the corresponding valve core liquid through holes (13) are correspondingly communicated, and the corresponding valve core liquid through holes (13) are in cross communication;
the liquid channel communication mode of each group of the through liquid hole groups is different from the liquid channel connection mode of the next group of the adjacent through liquid hole groups;
each liquid distribution plate (2) is provided with two liquid distribution plate liquid through holes (22) which are discontinuously communicated with the valve core liquid through holes (13).
2. The reversing system according to claim 1, wherein the valve core (1) further comprises a valve core rotating shaft (12) penetrating through the shaft center of the valve core main body (11), each liquid distribution plate (2) is further provided with a shaft mounting hole (21), the liquid through holes (22) of the liquid distribution plate are distributed on the circumference of a circle which takes the axis of the shaft mounting hole (21) as the center of the circle, the liquid through holes (22) of the two liquid distribution plates are positioned at the same radius, the first end of the valve core rotating shaft (12) passes through a shaft mounting hole (21) of the liquid distribution plate (2) on one side to be connected with the transmission device (3), the second end of the valve core rotating shaft (12) passes through a shaft mounting hole (21) of the liquid distribution plate (2) on the other side, the circle where the valve core liquid through holes (13) on the two side faces of the valve core main body (11) are located is concentric with the circle where the liquid distribution plate liquid through holes (22) of the two liquid distribution plates (2) are located, and the circle have the same radius length.
3. The reversing system according to claim 2, wherein the liquid distribution plate (2) comprises a main plate (23) provided with the shaft mounting hole (21) and the liquid distribution plate liquid through hole (22), and a joint seat (24) for connecting a liquid inlet and return pipeline of a liquid supply system and a liquid inlet and return pipeline of an execution unit, two joint seats (24) are arranged on the main plate (23), and each joint seat (24) is communicated with one liquid distribution plate liquid through hole (22).
4. The reversing system according to claim 2, characterized in that the liquid distribution plate (2) is further provided with a main sealing groove (25) coaxial with the liquid distribution plate liquid through hole (22) and an auxiliary sealing groove (26) coaxial with the shaft mounting hole (21), and sealing members are arranged in the main sealing groove (25) and the auxiliary sealing groove (26).
5. The reversing system according to claim 1, characterized in that the valve core through holes (13) of the corresponding through hole groups on the two side surfaces of the valve core main body (11) are opposite, and the liquid distribution plate through holes (22) of the two liquid distribution plates (2) are opposite.
6. The commutation system of claim 1, wherein:
a first through hole group on one side of the valve core main body (11) corresponds to a second through hole group on the other side of the valve core main body (11), a first group of first through holes (1311) in the first through hole group are opposite to a second group of first through holes (1321) in the second through hole group, and a first group of second through holes (1312) in the first through hole group are opposite to a second group of second through holes (1322) in the second through hole group;
a third through hole group, adjacent to the first through hole group, on one side of the valve core main body (11) corresponds to a fourth through hole group, adjacent to the second through hole group, on the other side of the valve core main body (11), a third group of first through holes (1331) in the third through hole group are opposite to a fourth group of first through holes (1341) in the fourth through hole group, and a third group of second through holes (1332) in the third through hole group are opposite to a fourth group of second through holes (1342) in the fourth through hole group;
the first set of first liquid through holes (1311) is communicated with the second set of first liquid through holes (1321), the first set of second liquid through holes (1312) is communicated with the second set of second liquid through holes (1322), the third set of first liquid through holes (1331) is communicated with the fourth set of second liquid through holes (1342), and the third set of second liquid through holes (1332) is communicated with the fourth set of first liquid through holes (1341).
7. The reversing system according to claim 1, characterized in that the valve core main body (11) is integrally formed, and two valve core liquid through holes (13) of each group of liquid through holes on one side of the valve core main body (11) are communicated with two valve core liquid through holes (13) of the corresponding group of liquid through holes on the other side of the valve core main body (11) through a channel arranged in the valve core main body (11).
8. The reversing system according to claim 1, characterized in that the two valve core through holes (13) of each set of through holes on one side of the valve core body (11) are communicated with the two valve core through holes (13) of the corresponding set of through holes on the other side of the valve core body (11) through a metal pipe (14) arranged in the valve core body (11).
9. The reversing system according to any one of claims 1 to 8, further comprising two mounting bearing seats (4) provided with bearings, and a mounting base (5) supporting the valve core (1), the liquid distribution plate (2), the transmission device (3), and the mounting bearing seats (4), wherein one end of the valve core (1) is connected with the transmission device (3) through the bearing of one mounting bearing seat (4), and the other end is supported by the bearing of the other mounting bearing seat (4).
10. The reversing system according to any one of claims 1 to 8, characterized in that the transmission (3) comprises a transmission mechanism and a transmission motor driving the transmission mechanism, the transmission mechanism being connected to one end of the spool (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578860.4U CN212130936U (en) | 2020-04-17 | 2020-04-17 | Reversing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578860.4U CN212130936U (en) | 2020-04-17 | 2020-04-17 | Reversing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212130936U true CN212130936U (en) | 2020-12-11 |
Family
ID=73690237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020578860.4U Active CN212130936U (en) | 2020-04-17 | 2020-04-17 | Reversing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212130936U (en) |
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2020
- 2020-04-17 CN CN202020578860.4U patent/CN212130936U/en active Active
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