CN113864269B - Hydraulic system oil circuit conversion device - Google Patents
Hydraulic system oil circuit conversion device Download PDFInfo
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- CN113864269B CN113864269B CN202111107593.8A CN202111107593A CN113864269B CN 113864269 B CN113864269 B CN 113864269B CN 202111107593 A CN202111107593 A CN 202111107593A CN 113864269 B CN113864269 B CN 113864269B
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- oil
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- oil port
- upper chamber
- port
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The oil way conversion device of the hydraulic system comprises a device main body, wherein the device main body is provided with an oil inlet channel and an oil outlet channel; the device body is internally provided with a first upper cavity and a first lower cavity which are communicated, a second upper cavity and a second lower cavity which are communicated, the first lower cavity is provided with a third oil port, and the second lower cavity is provided with a fourth oil port; the bottoms of the first lower chamber and the second lower chamber are respectively communicated with the oil inlet channel, and the upper parts of the first upper chamber and the second upper chamber are respectively communicated with the oil outlet channel; the first chamber and the second chamber are respectively provided with a conversion component, and the conversion components are used for enabling the first upper chamber to be closed and the second upper chamber to be opened, so that the second upper chamber is opened and the first upper chamber is closed. According to the hydraulic system oil way conversion device, the middle part of the device body is connected with the hydraulic power device, and the device can absorb oil from the oil inlet channel and discharge oil from the oil outlet channel through the conversion assembly no matter when the device absorbs oil from the third oil port or the fourth oil port.
Description
Technical Field
The invention belongs to the field of track engineering, and particularly relates to an oil way conversion device of a hydraulic system.
Background
Along with the continuous development of the track engineering machinery technology in China, the reliability of the track engineering machinery operation and the convenience of maintenance are more important. In the production process of the track engineering machinery, the oil suction port and the oil outlet of an oil way of a hydraulic system can be converted due to the influence of the movement of the whole vehicle, and the direction of an output oil way is changed at the same time after conversion, so that the equipment layout is not facilitated. Therefore, there is a need for an oil passage switching device that is capable of maintaining the output direction after the occurrence of the switching of the hydraulic power direction.
Disclosure of Invention
The invention aims to provide a hydraulic system oil way conversion device which can ensure that the output direction is unchanged after the direction of hydraulic power is converted.
In order to achieve the above object, the present invention provides a hydraulic system oil path conversion device for connecting to a hydraulic power device, the hydraulic power device including a first oil port and a second oil port, the hydraulic system oil path conversion device including a device body provided with an oil inlet channel and an oil outlet channel;
the device body is internally provided with a first upper cavity and a first lower cavity which are communicated, a second upper cavity and a second lower cavity which are communicated, the first lower cavity is provided with a third oil port, the second lower cavity is provided with a fourth oil port, the third oil port is communicated with the first oil port, and the fourth oil port is communicated with the second oil port;
the bottoms of the first lower chamber and the second lower chamber are respectively communicated with the oil inlet channel, and the upper parts of the first upper chamber and the second upper chamber are respectively communicated with the oil outlet channel;
the first chamber and the second chamber are respectively provided with a conversion assembly, and the conversion assemblies are used for enabling the first upper chamber to be closed and enabling the second upper chamber to be opened when the first oil port absorbs oil and the second oil port discharges oil, and enabling the second upper chamber to be opened and enabling the first upper chamber to be closed when the second oil port absorbs oil and the first oil port discharges oil.
Preferably, the first upper chamber and the second lower chamber are communicated to form a first chamber, and the first upper chamber is above the second lower chamber; the second upper chamber is communicated with the second lower chamber to form a second chamber, and the second upper chamber is above the second lower chamber;
the first chamber and the second chamber are arranged in the vertical direction, and the first upper chamber and the second upper chamber are communicated with the top surface of the device body.
Preferably, the device further comprises a cover plate connected to the top of the device body for closing the first upper chamber and the second upper chamber.
Preferably, the device body comprises a first end face and a second end face which are oppositely arranged, the oil inlet channel is arranged along the horizontal direction and communicated with the first end face, and the oil outlet channel is arranged along the horizontal direction and communicated with the second end face.
Preferably, the conversion assembly comprises a first sealing member and a second sealing member;
the first sealing parts of the pair of conversion assemblies are respectively used for being clamped at the communication position of the first upper chamber and the first lower chamber and the communication position of the second upper chamber and the second lower chamber;
the second sealing parts of the pair of conversion assemblies are respectively used for being clamped at the communication position of the first lower cavity and the oil inlet channel and the communication position of the second lower cavity and the oil inlet channel;
when the first oil port of the hydraulic power device absorbs oil and the second oil port of the hydraulic power device absorbs oil, the third oil port of the hydraulic power device absorbs oil and the fourth oil port of the hydraulic power device absorbs oil, the second sealing component at the communication part of the first lower chamber and the oil inlet channel is sucked up, oil in the oil inlet channel enters the first lower chamber and enters the first oil port from the third oil port, the first sealing component at the communication part of the second upper chamber and the second lower chamber is jacked up, and oil in the second oil port sequentially enters the second lower chamber and the second upper chamber through the fourth oil port and is discharged through the oil outlet channel;
when the second oil port absorbs oil and the first oil port discharges oil, the third oil port is used for oil feeding and the fourth oil port discharges oil, the second sealing component at the communication position of the second lower cavity and the oil feeding channel is sucked up, the oil of the oil feeding channel enters the second lower cavity and enters the second oil port from the fourth oil port, the first sealing component at the communication position of the first upper cavity and the first lower cavity is jacked up, and the oil of the first oil port sequentially enters the first lower cavity through the third oil port and is discharged through the oil discharging channel.
Preferably, the first sealing member and the second sealing member are both spherical, the bottoms of the first lower chamber and the second lower chamber are both tapered, and the spherical shape can be clamped in the tapered shape.
Preferably, the first sealing member and the second sealing member are made of steel.
Preferably, the conversion assembly further comprises a positioning sleeve, the cross sections of the first upper chamber, the first lower chamber, the second upper chamber and the second lower chamber are all circular, the diameter of the first upper chamber is larger than that of the first lower chamber, and the diameter of the second upper chamber is larger than that of the second lower chamber;
the positioning sleeves of the pair of conversion assemblies are respectively arranged at the bottoms of the first upper cavity and the second upper cavity and are used for clamping the first sealing component.
Preferably, the bottom of the positioning sleeve is provided with a conical portion, a through hole is formed in the middle of the bottom of the conical portion, and the first sealing component can be clamped to the conical portion and seal the through hole.
Preferably, a seal is provided between the cover plate and the device body.
The invention relates to a hydraulic system oil way conversion device, which has the beneficial effects that: the middle part of the device body is connected with the hydraulic power device, the oil inlet channel is connected with the oil suction pipeline, the oil outlet channel is connected with the hydraulic pipeline, and the effect of oil suction from the oil inlet channel and oil discharge from the oil outlet channel can be achieved by the hydraulic power device under the action of the conversion assembly no matter the hydraulic power device sucks oil from the third oil port or the fourth oil port.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a cross-sectional view of a hydraulic system oil passage switching device according to an exemplary embodiment of the present invention;
FIG. 2 illustrates a top view of a hydraulic system oil circuit switching device according to an exemplary embodiment of the present invention;
FIG. 3 illustrates a side view of a hydraulic system oil circuit switching device according to an exemplary embodiment of the present invention;
fig. 4 is a schematic diagram showing the state of oil from the third oil port and oil from the fourth oil port when the hydraulic system oil path switching device according to the exemplary embodiment of the present invention is used;
fig. 5 is a schematic diagram showing the state of the third port oil inlet and the fourth port oil outlet when the hydraulic system oil path switching device according to the exemplary embodiment of the invention is used.
Reference numerals illustrate:
1 a first end face, 2 a second end face, 3 an oil inlet channel, 4 an oil outlet channel, 5 a first chamber, 51 a first upper chamber, 52 a first lower chamber, 6 a second chamber, 61 a second upper chamber, 62 a second lower chamber, 7 a third oil port, 8 a fourth oil port, 9 a cover plate, 10 a first sealing component, 11 a second sealing component, 12 a positioning sleeve and 13 a fixing component.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In order to solve the problems in the prior art, the present invention provides a hydraulic system oil circuit switching device, please refer to fig. 1 to 3, for connecting to a hydraulic power device, wherein the hydraulic power device comprises a first oil port and a second oil port (not shown), the hydraulic system oil circuit switching device comprises a device body made of metal material, which can be stainless steel, and the device body is provided with an oil inlet channel 3 and an oil outlet channel 4;
the device body is internally provided with a first upper cavity 51 and a first lower cavity 52 which are communicated, a second upper cavity 61 and a second lower cavity 62 which are communicated, the first lower cavity 52 is provided with a third oil port 7, the second lower cavity 62 is provided with a fourth oil port 8, the third oil port 7 is communicated with the first oil port, and the fourth oil port 8 is communicated with the second oil port;
the bottoms of the first lower chamber 52 and the second lower chamber 62 are respectively communicated with the oil inlet passage 3, and the upper parts of the first upper chamber 51 and the second upper chamber 61 are respectively communicated with the oil outlet passage 4;
the first chamber 5 and the second chamber 6 are respectively provided with a conversion component, and the conversion components are used for enabling the first upper chamber 51 to be closed and enabling the second upper chamber to be opened 61 when the first oil port absorbs oil and the second oil port emits oil, and enabling the second upper chamber to be opened 61 and enabling the first upper chamber 51 to be closed when the second oil port absorbs oil and the first oil port emits oil.
According to the hydraulic system oil way conversion device, the middle part of the device body is connected with the hydraulic power device, the oil inlet channel is connected with the oil suction pipeline, and the oil outlet channel is connected with the hydraulic pipeline, so that the hydraulic power device can absorb oil from the oil inlet channel and can discharge oil from the oil outlet channel under the action of the conversion component no matter when the hydraulic power device absorbs oil from the third oil port or the fourth oil port.
The first upper chamber 51 and the second lower chamber 52 are communicated to form a first chamber 5, and the first upper chamber 51 is above the second lower chamber 52; the second upper chamber 61 communicates with the second lower chamber 62 to form a second chamber 6, and the second upper chamber 61 is above the second lower chamber 62;
the first chamber 5 and the second chamber 6 are arranged along the vertical direction, and the first upper chamber 51 and the second upper chamber 61 are communicated with the top surface of the device body, so that the device is convenient to overhaul and seal.
The hydraulic power device, such as an oil pump, the first cavity 5 and the second cavity 6 form two conversion oil ducts, the oil inlet channel 3 is used for absorbing oil and delivering the oil into the device, the oil outlet channel 4 is used for delivering the oil in the device to a hydraulic pipeline, the bottoms of the two conversion oil ducts are communicated with the oil inlet channel 3, the middle part of the two conversion oil ducts is communicated with the hydraulic power device, the upper part of the two conversion oil ducts is communicated with the oil outlet channel 4, and the hydraulic power device can always keep the oil absorption from the oil inlet channel 3 and the oil outlet from the oil outlet channel 4 when the hydraulic power device is in two states of absorbing oil from the first oil port, absorbing oil from the second oil port or absorbing oil from the second oil port and delivering the oil from the first oil port through the switching of the conversion assembly, so that the output direction of the oil path is unchanged.
The device body includes the relative first terminal surface 1 and the second terminal surface 2 that set up, and oil feed passageway 3 sets up and communicates in first terminal surface 1 along the horizontal direction to with oil absorption pipeline intercommunication, oil outlet channel 4 locates and sets up and communicates in second terminal surface 2 along the horizontal direction, so as to communicate with hydraulic pressure pipeline.
The device body further comprises a side surface positioned between the first end surface 1 and the second end surface 2, and the third oil port 7 and the fourth oil port 8 are arranged along the horizontal direction and communicated with the side surface. The oil inlet channel 3 and the oil outlet channel 4 are arranged in parallel, and the third oil port 7 and the fourth oil port 8 are perpendicular to the oil inlet channel 3 and the oil outlet channel 4.
The conversion assembly comprises a first sealing member 10 and a second sealing member 11;
the first sealing members 10 of the pair of conversion assemblies are respectively used for being clamped at the communication position of the first upper chamber 51 and the first lower chamber 52 and the communication position of the second upper chamber 61 and the second lower chamber 62;
the second sealing parts 11 of the pair of conversion assemblies are respectively used for being clamped at the communication part of the first lower chamber 52 and the oil inlet channel 3 and the communication part of the second lower chamber 62 and the oil inlet channel 3;
when the first oil port of the hydraulic power device absorbs oil and the second oil port of the hydraulic power device discharges oil, referring to fig. 4, namely, the third oil port 7 discharges oil and the fourth oil port 8 discharges oil, negative pressure is generated in the first lower chamber 52 due to suction force, and because the third oil port 7 is arranged between the first sealing component 10 and the second sealing component 11, the first sealing component 10 is attracted above the third oil port 7 and is blocked by the bottom of the first upper chamber 51, the communicating part of the first upper chamber 51 and the first lower chamber 52 is sealed, the second sealing component 11 at the communicating part of the first lower chamber 52 and the oil inlet channel 3 is sucked up, and the oil in the oil inlet channel 3 enters the first lower chamber 52 and enters the first oil port from the third oil port 7;
the fourth oil port 8 is filled with oil, positive pressure is generated when the oil enters the second lower chamber 62, the first sealing component 10 at the communication part of the second upper chamber 61 and the second lower chamber 62 is jacked, the second lower chamber 62 is positioned below the fourth oil port 8 and is clamped by the bottom of the second lower chamber 62 to seal the second lower chamber 62 and the oil inlet channel 3, and the oil of the second oil port sequentially enters the second lower chamber 62, the second upper chamber 61 and is discharged through the oil outlet channel 4 through the fourth oil port 8;
when the second oil port of the hydraulic power device absorbs oil and the first oil port discharges oil, referring to fig. 5, namely, the third oil port 7 is used for oil feeding and the fourth oil port 8 is used for oil discharging, negative pressure is generated in the second lower chamber 62 due to suction force, and the fourth oil port 8 is arranged between the first sealing component 10 and the second sealing component 11, the first sealing component 10 is attracted above the fourth oil port 8 and is clamped by the bottom of the second upper chamber 61, the communicating part of the second upper chamber 61 and the second lower chamber 62 is sealed, the second sealing component 11 at the communicating part of the second lower chamber 62 and the oil feeding channel 3 is attracted, so that the oil in the oil feeding channel 3 enters the second lower chamber 62 and enters the second oil port from the fourth oil port 8;
the third oil port 7 is filled with oil, the first lower chamber 52 is filled with oil to generate positive pressure, the first sealing component 10 at the communication part of the first upper chamber 51 and the first lower chamber 52 is jacked, the first lower chamber 52 is positioned below the third oil port 7 and is clamped by the bottom of the first lower chamber 52 to seal the first lower chamber 52 and the oil inlet channel 3, and the oil of the first oil port sequentially enters the first lower chamber 52, the first upper chamber 51 and is discharged through the oil outlet channel 4 through the third oil port 7.
In this embodiment, the first upper chamber 51 and the second upper chamber 61 are communicated through the oil outlet channel 4, and when the oil in the first upper chamber 51 enters the oil outlet channel 4, the oil also enters a part of the second upper chamber 61, and is discharged to the hydraulic pipeline through the oil outlet channel 4.
In this embodiment, the first sealing member 10 and the second sealing member 11 are both spherical, the bottoms of the first lower chamber 52 and the second lower chamber 62 are both tapered, and the spherical shapes can be clamped in the tapered shapes.
The first sealing member 10 and the second sealing member 11 are made of steel.
The conversion assembly further comprises a positioning sleeve 12, wherein the cross sections of the first upper chamber 51, the first lower chamber 52, the second upper chamber 61 and the second lower chamber 62 are all round, namely the first chamber 5 and the second chamber 6 are all cylindrical, the diameter of the first upper chamber 51 is larger than that of the first lower chamber 52, and the diameter of the second upper chamber 61 is larger than that of the second lower chamber 62;
the positioning sleeves 12 of the pair of conversion assemblies are respectively arranged at the bottoms of the first upper chamber 51 and the second upper chamber 61 and are used for clamping the first sealing component 10.
The positioning sleeve 12 comprises an annular side wall and a bottom wall, the bottom of the positioning sleeve 12 is provided with a conical portion, namely, the inner side of the bottom wall is conical, the outer side of the bottom wall is planar, a through hole 13 is formed in the middle of the bottom of the conical portion, and the first sealing component 10 can be clamped to the conical portion and seals the through hole 13.
The hydraulic system oil circuit switching device further comprises a cover plate 9, wherein the cover plate 9 is connected to the top of the device body and is used for closing the first upper chamber 51 and the second upper chamber 61, so that the assembly is convenient and sealing materials are added.
In this embodiment, a sealing member (not shown) is disposed between the cover plate 9 and the device body, and is used to seal the first chamber 5 and the second chamber 6, the sealing member may be a sealing ring surrounding the connection between the first chamber 5 and the second chamber 6 and the cover plate 9, and the cover plate 9 is connected with the device body through fixing members 13, in this embodiment, the fixing members 13 are bolts, and are 6 and uniformly distributed on the surface of the cover plate 9.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (8)
1. The hydraulic system oil way conversion device is used for being connected to a hydraulic power device, and the hydraulic power device comprises a first oil port and a second oil port and is characterized by comprising a device main body, wherein the device main body is provided with an oil inlet channel (3) and an oil outlet channel (4);
the device comprises a device body, wherein a first upper cavity (51) and a first lower cavity (52) which are communicated, a second upper cavity (61) and a second lower cavity (62) which are communicated are arranged in the device body, a third oil port (7) is arranged in the first lower cavity (52), a fourth oil port (8) is arranged in the second lower cavity (62), the third oil port (7) is communicated with the first oil port, and the fourth oil port (8) is communicated with the second oil port;
the bottoms of the first lower chamber (52) and the second lower chamber (62) are respectively communicated with the oil inlet channel (3), and the upper parts of the first upper chamber (51) and the second upper chamber (61) are respectively communicated with the oil outlet channel (4);
the first upper chamber (51) and the second lower chamber (52) are communicated to form a first chamber (5), and the first upper chamber (51) is above the second lower chamber (52); the second upper chamber (61) is communicated with the second lower chamber (62) to form a second chamber (6), and the second upper chamber (61) is above the second lower chamber (62);
the first chamber (5) and the second chamber (6) are respectively provided with a conversion assembly, the conversion assemblies are used for enabling the first upper chamber (51) to be closed and enabling the second upper chamber (61) to be opened when the first oil port absorbs oil and the second oil port discharges oil, and enabling the second upper chamber (61) to be opened and enabling the first upper chamber (51) to be closed when the second oil port absorbs oil and the first oil port discharges oil;
the first chamber (5) and the second chamber (6) are arranged along the vertical direction, and the first upper chamber (51) and the second upper chamber (61) are communicated with the top surface of the device body;
the device body comprises a first end face (1) and a second end face (2) which are oppositely arranged, the oil inlet channel (3) is arranged along the horizontal direction and communicated with the first end face (1), and the oil outlet channel (4) is arranged along the horizontal direction and communicated with the second end face (2).
2. The hydraulic system oil circuit switching device according to claim 1, further comprising a cover plate (9), the cover plate (9) being connected to the top of the device body for closing the first upper chamber (51) and the second upper chamber (61).
3. The hydraulic system oil passage switching device according to claim 1, wherein the switching assembly includes a first sealing member (10) and a second sealing member (11);
the first sealing parts (10) of the pair of conversion assemblies are respectively used for being clamped at the communication position of the first upper chamber (51) and the first lower chamber (52) and the communication position of the second upper chamber (61) and the second lower chamber (62);
the second sealing parts (11) of the pair of conversion assemblies are respectively used for being clamped at the communication position of the first lower chamber (52) and the oil inlet channel (3) and the communication position of the second lower chamber (62) and the oil inlet channel (3);
when the first oil port of the hydraulic power device absorbs oil and the second oil port of the hydraulic power device discharges oil, the third oil port (7) discharges oil and the fourth oil port (8) feeds oil, the second sealing part (11) at the communication position of the first lower chamber (52) and the oil inlet channel (3) is sucked up, the oil of the oil inlet channel (3) enters the first lower chamber (52) and enters the first oil port from the third oil port (7), the first sealing part (10) at the communication position of the second upper chamber (61) and the second lower chamber (62) is jacked up, and the oil of the second oil port sequentially enters the second lower chamber (62), the second upper chamber (61) and is discharged through the oil outlet channel (4) through the fourth oil port (8);
when the second oil port absorbs oil and the first oil port discharges oil, the third oil port (7) is used for oil feeding and the fourth oil port (8) is used for oil discharging, the second sealing component (11) at the communication part of the second lower cavity (62) and the oil feeding channel (3) is sucked up, the oil of the oil feeding channel (3) enters the second lower cavity (62) and enters the second oil port from the fourth oil port (8), the first sealing component (10) at the communication part of the first upper cavity (51) and the first lower cavity (52) is jacked up, and the oil of the first oil port sequentially enters the first lower cavity (52) through the third oil port (7) and is discharged through the oil discharging channel (4).
4. A hydraulic system oil passage switching device according to claim 3, characterized in that the first sealing member (10) and the second sealing member (11) are spherical, the bottoms of the first lower chamber (52) and the second lower chamber (62) are tapered, and the spherical shapes can be clamped in the tapered shapes.
5. A hydraulic system oil passage switching device according to claim 3, characterized in that the first sealing member (10) and the second sealing member (11) are made of steel.
6. The hydraulic system oil circuit switching device according to claim 4, wherein the switching assembly further comprises a positioning sleeve (12), the first upper chamber (51), the first lower chamber (52), the second upper chamber (61) and the second lower chamber (62) are all circular in cross section, the diameter of the first upper chamber (51) is larger than the diameter of the first lower chamber (52), and the diameter of the second upper chamber (61) is larger than the diameter of the second lower chamber (62);
the positioning sleeves (12) of the pair of conversion assemblies are respectively arranged at the bottoms of the first upper cavity (51) and the second upper cavity (61) and are used for clamping the first sealing component (10).
7. The hydraulic system oil passage switching device according to claim 6, wherein a tapered portion is provided at a bottom of the positioning sleeve (12), a through hole (13) is provided in a middle of a bottom of the tapered portion, and the first sealing member (10) is capable of being clamped to the tapered portion and sealing the through hole (13).
8. The hydraulic system oil circuit switching device according to claim 2, characterized in that a seal is provided between the cover plate (9) and the device body.
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| CN202111107593.8A CN113864269B (en) | 2021-09-22 | 2021-09-22 | Hydraulic system oil circuit conversion device |
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| CN202111107593.8A CN113864269B (en) | 2021-09-22 | 2021-09-22 | Hydraulic system oil circuit conversion device |
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| CN113864269B true CN113864269B (en) | 2023-09-08 |
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