Integrated manual hydraulic driving device
Technical Field
The invention relates to a hydraulic driving device, in particular to a small integrated manual hydraulic driving device.
Background
The electrohydraulic actuator is widely applied to the fields of aerospace, navigation, coal and the like, and mainly drives equipment through a motor, a pump and a hydraulic system, so that linear or rotary motion of an actuating mechanism, such as opening and closing control of a large valve, is realized, and a power source is a hydraulic cylinder of the hydraulic system so as to realize opening or closing of the valve. However, when an emergency situation such as power failure or failure of the hydraulic system is encountered, serious consequences can be caused if the operation cannot be recovered in time.
An auxiliary system, a manual hydraulic drive, is therefore provided in the electrohydraulic transmission to drive the opening or closing of the valve by manual operation when the hydraulic system is not operating properly. However, the existing manual hydraulic driving device is generally connected by a manual hydraulic pump, a manual reversing valve, a hydraulic lock and the like through pipelines, has a complex structure and a large volume, is inconvenient for system integration, and is not suitable for modularized production.
Disclosure of Invention
Aiming at the problems of complex structure and large volume of the existing manual hydraulic driving device, the invention aims to provide a small-sized integrated manual hydraulic driving device.
In order to realize the tasks, the invention adopts the following technical scheme:
An integrated manual hydraulic driving device comprises a shell, wherein the shell comprises a side plate, one side of the side plate is provided with a mounting block, and a first mounting groove is formed in the mounting block; a second mounting groove is formed in the direction of the other side mounting block of the side plate; the first mounting groove is internally provided with a hydraulic lock through a pressing plate, the second mounting groove is internally provided with a manual hydraulic pump, the manual hydraulic pump is encapsulated in the second mounting groove through a cover plate positioned on the side surface of the mounting block, and a connecting plate and a supporting plate are further arranged among the side plate, the cover plate and the manual hydraulic pump; the hydraulic system is characterized in that the manual hydraulic pump is connected with the hydraulic lock through an oil way, a nozzle which is connected with the manual hydraulic pump and is used for being connected with an oil tank is arranged on the support plate, and an X port and a Y port which are connected with the hydraulic lock and are used for being respectively connected with two sides of a hydraulic cylinder of the hydraulic system are arranged on the press plate.
Further, the manual hydraulic pump comprises a pump body, a reversing handle and a pressing operation handle are arranged on the pump body, the pump body is provided with a P port, an S port, an A port and a B port, wherein the P port is an oil return port, and the P port is plugged; the S port is an oil inlet, and the A port and the B port are working oil ports; the direction of the reversing handle is changed to realize the switching or closing of the oil paths of the port A and the port B; the switching or closing includes: the P port, the S port, the A port and the B port are all closed; hydraulic oil flows from the port A to the port B and flows from the port B to the port A;
And the port S, the port A and the port B are respectively connected with a first conversion connector, a second conversion connector and a third conversion connector.
Further, the hydraulic lock is provided with four oil ports of a C port, a D port, an E port and an F port, wherein the C port and the D port are positioned on one side of the hydraulic lock and are oil inlets; the port E and the port F are positioned at the other side of the hydraulic lock and are oil outlets, the port C is communicated with the port F to form an oil path Y1, and the port D is communicated with the port E to form an oil path Y2.
Further, a G port for inserting the third adapter and four oil ports including an H port, a J port and a K port are formed in the shell, wherein the G port is located in the second mounting groove, the H port is located on the side face of the mounting block, and the J port and the K port are located in the first mounting groove; the port G is communicated with the port K to form an oil way K1, and the port H is communicated with the port J to form an oil way K2.
Further, a first communication shaft hole is formed in the edge of the cover plate, and two oil ports of an N port and an M port are respectively formed in the cover plate, wherein the N port and the M port are communicated to form an oil path G2, and the first communication shaft hole is communicated with the M port;
The side surface of the support plate is provided with a second communication shaft hole corresponding to the first communication shaft hole, the first communication shaft hole and the second communication shaft hole are connected through a communication shaft, and the depth of each of the first communication shaft hole and the second communication shaft hole is 1-2 mm greater than the length of the communication shaft; the support plate is also provided with three oil ports, namely a W port, a V port and a U port, wherein the W port is communicated with the second communication shaft hole, the V port is communicated with the U port to form an oil way Z3, the positions of the W port and the V port correspond to the positions of the S port and the A port on the manual hydraulic pump, and a sealing ring mounting groove is formed around the V port; the first adapter joint and the second adapter joint extend into the W port and the V port respectively; the U-shaped opening, the W-shaped opening and the V-shaped opening are positioned on the opposite sides of the support plate, and the connector is arranged on the U-shaped opening.
Further, the connecting plate is positioned between the support plate and the manual hydraulic pump, a through hole for penetrating through the second conversion connector is formed in the connecting plate, two oil ports of a T port and a Z port are coaxially formed in the opposite side of the connecting plate, and the T port and the Z port are communicated to form an oil path L3; one end of the first conversion connector is inserted into the T-shaped opening, and the depth of the T-shaped opening is larger than the length of the first conversion connector extending out of the pump body.
Further, an L port, a Q port, an X port and a Y port are arranged on the pressing plate, wherein the L port and the Q port are positioned on the inner side of the pressing plate, the X port and the Y port are positioned on the outer side of the pressing plate, the L port and the X port are communicated to form an oil way B1, and the Q port and the Y port are communicated to form an oil way B2; the positions of the L port and the Q port correspond to the positions of the F port and the E port on the hydraulic lock and are mutually connected, wherein the L port and the F port and the Q port and the E port are axially sealed through rubber sealing rings.
Further, the middle part of the communication shaft is provided with a central hole, the outside of the communication shaft is provided with a sealing ring mounting groove, one end of the communication shaft is inserted into the first communication shaft hole, the other end of the communication shaft is inserted into the second communication shaft hole, the communication shaft is radially sealed with the cover plate and the support plate by adopting a rubber sealing ring, and an M port on the cover plate is communicated with a W port on the Z support plate to form a passage.
Further, the first conversion connector is inserted into the T-shaped opening of the connecting plate, the second conversion connector penetrates through the through hole and is inserted into the W-shaped opening on the support plate, and the first conversion connector and the T-shaped opening as well as the second conversion connector and the W-shaped opening are radially sealed by adopting rubber sealing rings to form a passage.
Further, the manual hydraulic pump is fixed in the second mounting groove through the first adapter plate and the second adapter plate, wherein the longitudinal section of the first adapter plate is of an L-shaped structure, and the whole second adapter plate is of an L-shaped structure.
Compared with the prior art, the invention has the following technical characteristics:
1. The invention adopts the pipeline-free integrated design, and has the characteristics of compact structure, small volume and attractive appearance;
2. the invention has only one oil way input port and two radial sealed oil way output ports, thereby being convenient for integration with other hydraulic systems;
3. The tolerance formed by the components of the invention has small influence on product assembly, and the interchangeability among the components of the invention is strong, thereby being convenient for modularized production and being suitable for mass production;
4. All sealing parts of the invention adopt sealing structures of O-shaped sealing rings or O-shaped sealing rings and check rings, and the sealing performance is reliable.
Drawings
FIG. 1 is a schematic diagram of the external configuration of the present invention;
FIG. 2 is a schematic diagram of the hydraulic ports of the manual hydraulic pump of the present invention, wherein (a) is a forward view of the manual hydraulic pump and (b) is a reverse view of the manual hydraulic pump;
FIG. 3 is a schematic diagram of the manual hydraulic pump system of the present invention;
FIG. 4 is a schematic view of the structure of the first adapter plate of the present invention, wherein (a), (b), (c) are front view, left view and top view, respectively;
Fig. 5 is a schematic structural diagram of a second interposer of the present invention, wherein (a) and (b) are front view and top view respectively;
FIG. 6 is an exploded view of the manual hydraulic pump of the present invention in connection with two adapter plates;
FIG. 7 is an exploded view of the manual hydraulic pump and housing connection of the present invention;
FIG. 8 is a schematic view of the structure of the hydraulic lock of the present invention, wherein (a) is a schematic view of the back structure of the hydraulic lock, and (b) is a schematic view of the front structure of the hydraulic lock;
FIG. 9 is a schematic view of the housing structure of the present invention, wherein (a) is a top view of the housing, and (b) is a schematic view of the front surface of the housing;
FIG. 10 is a schematic view of the internal flow path of the housing of the present invention;
FIG. 11 is a schematic diagram of the structure of a cover plate according to the present invention, wherein (a) is a schematic diagram of the front structure of the cover plate; (b) is a schematic cross-sectional view of the cover plate;
Fig. 12 is a schematic structural view of a connecting plate according to the present invention, wherein (a) is a schematic structural view of an inner side of the connecting plate, and (b) is a schematic structural view of an outer side of the connecting plate;
FIG. 13 is a schematic view of a support plate according to the present invention, wherein (a) is a schematic view of an inner side structure of the support plate, and (b) is a schematic view of an outer side structure of the support plate;
FIG. 14 is a schematic view of the split independent radial seal structure of the oil port of the present invention;
FIG. 15 is a schematic view of a partial construction of a small integrated manual hydraulic drive apparatus of the present invention;
FIG. 16 is an exploded schematic view of a compact integrated manual hydraulic drive of the present invention;
FIG. 17 is a schematic diagram of a small integrated manual hydraulic drive system of the present invention;
The reference numerals in the figures represent: 1-manual hydraulic pump, 2-hydraulic lock, 3-casing, 31-second mounting groove, 32-mounting block, 33-through groove, 34-side board, 35-first mounting groove, 4-cover plate, 5-connecting plate, 6-supporting plate, 7-pressing plate, 8-connecting shaft, 9-connecting mouth, 10-operating handle, 11-pump body, 12-reversing handle, 13-first adapter, 14-second adapter, 15-third adapter, 16-plug, 17-first adapter plate, 18-second adapter plate, 19-first communicating shaft hole, 20-through hole, 21-second communicating shaft hole.
Detailed Description
As shown in fig. 1, the invention provides an integrated manual hydraulic driving device, which comprises a shell 3, wherein the shell 3 comprises a side plate 34, one side of the side plate 34 is provided with a mounting block 32, and a first mounting groove 35 is formed in the mounting block 32; the other side of the side plate 34 is formed with a second mounting groove 31 in the direction of the mounting block 32. As shown in fig. 9, the side plate 34 is a flat plate, the mounting block 32 is a rectangular mounting block 32 fixed inside the side plate 34, a rectangular second mounting groove 31 is formed at one end of the mounting block 32, a stepped through groove 33 is formed outside the side plate 34 toward the second mounting groove 31, and the through groove 33 communicates with the second mounting groove 31. The first mounting groove 35 is located on the outer side of the side plate 34, and the first mounting groove 35 is a rectangular stepped groove which is recessed toward the mounting block 32.
The first mounting groove 35 is internally provided with a hydraulic lock 2in a packaged mode through a pressing plate 7, and the second mounting groove 31 is internally provided with a manual hydraulic pump 1. Specifically, the manual hydraulic pump 1 is installed through a first adapter plate 17 and a second adapter plate 18, as shown in fig. 4 and 5, the longitudinal section of the first adapter plate 17 is in an L-shaped structure, two plates are vertically connected at the edge, and the second connecting plate 5 is an L-shaped plate. When the hydraulic pump is installed, the first adapter plate 17 is positioned in the through groove 33, the second adapter plate 18 is positioned in the second installation groove 31, and the first adapter plate 17 and the second adapter plate 18 fix the manual hydraulic pump 1 between the two and fasten the manual hydraulic pump with the shell 3 through bolts.
After the manual hydraulic pump 1 is fixed, it is encapsulated in the second installation groove 31 by the cover plate 4 located at the side of the installation block 32. A connecting plate 5 and a support plate 6 are also arranged among the side plate 34, the cover plate 4 and the manual hydraulic pump 1; the hydraulic system is characterized in that the manual hydraulic pump 1 is connected with the hydraulic lock 2 through an oil way, the support plate 6 is provided with a connector 9 connected with the manual hydraulic pump 1 and used for being connected with an oil tank, and the pressing plate 7 is provided with an X port and a Y port which are connected with the hydraulic lock 2 and used for being respectively connected with two sides of a hydraulic cylinder of the hydraulic system.
As shown in fig. 2 to 7, the manual hydraulic pump 1 of the present invention includes a pump body 11, a rotary reversing handle 12 and a pressing handle 10 are disposed on the pump body 11, the pump body 11 has a port P, a port S, a port a and a port B, wherein the port P is an oil return port, and the port P is not required in the present invention, so that the port P is plugged; the S port is an oil inlet, and the A port and the B port are working oil ports; the direction of the reversing handle 12 is changed to realize the switching or closing of the oil paths of the port A and the port B. Specifically, the switching or closing includes:
When the reversing handle 12 is vertical to the operating handle 10 (middle position), the port P, the port S, the port A and the port B are all closed;
when the reversing handle 12 is parallel to the operating handle 10 and the tail parts of the reversing handle 12 and the operating handle 10 face the same direction, the operating handle 10 is pressed, so that hydraulic oil flows from the port A to the port B;
When the reversing lever 12 is parallel to the operation lever 10 and the tail portions of the reversing lever 12 and the operation lever 10 face opposite, the operation lever 10 is pressed, and hydraulic oil flows from the port B to the port a.
The internal hydraulic oil path and the switching structure of the manual hydraulic pump 1 belong to the prior art and are not described in detail herein. The port S, the port A and the port B of the manual hydraulic pump 1 are respectively connected with a first adapter 13, a second adapter 14 and a third adapter 15, and the adapters realize connection and intercommunication of oil ports at different positions. The operating handle 10 is a detachable handle, and the operating force is changed by adopting the operating handles 10 with different lengths.
Fig. 8 is a schematic view of the structure of the hydraulic lock 2 according to the present invention. The hydraulic lock 2 adopts the existing hydraulic lock 2, and is provided with four oil ports of a C port, a D port, an E port and an F port, wherein the C port and the D port are positioned on one side of the hydraulic lock 2 and are oil inlets; the port E and the port F are positioned at the other side of the hydraulic lock 2 and are oil outlets, the port C is communicated with the port F to form an oil path Y1, and the port D is communicated with the port E to form an oil path Y2; the process holes required for realizing the internal oil passage are plugged by the ball expansion type plugs 16. The hydraulic lock 2 is a mature product, and the internal structure and the oil path are not described again.
As shown in fig. 9 and 10, a schematic view of the external structure and the internal flow path of the housing 3 in the present invention is given. The shell 3 is provided with a G port for inserting the third adapter 15, and four oil ports including an H port, a J port and a K port, wherein the G port is positioned in the second mounting groove 31, the H port is positioned on the side surface of the mounting block 32, the J port and the K port are positioned in the first mounting groove 35, and the specific positions of the J port and the K port are determined by the positions of the oil ports on the hydraulic lock 2; the port G is communicated with the port K to form an oil way K1, and the port H is communicated with the port J to form an oil way K2. The process holes required for realizing the internal oil path are plugged by adopting the ball expansion plugs 16; the housing 3 is provided with mounting holes necessary for integration with the hydraulic system.
As shown in fig. 11, the structure of the cover plate 4 is schematically shown, the cover plate 4 is a rectangular plate structure, the edge of the cover plate 4 is provided with a first communicating shaft 8 hole, the cover plate 4 is respectively provided with two oil ports, namely an N port and an M port, wherein the N port and the M port are communicated to form an oil path G2, and the G2 is arranged inside the cover plate 4; the hole of the first communicating shaft 8 is communicated with the M port.
As shown in fig. 13, which is a schematic structural diagram of the support plate 6 of the present invention, the side surface of the support plate 6 is provided with a second communication shaft 8 hole corresponding to the first communication shaft 8 hole, the first communication shaft 8 hole and the second communication shaft 8 hole are connected by the communication shaft 8, and the depth of each of the first communication shaft hole 19 and the second communication shaft 8 hole is larger than the length of the communication shaft, preferably 1-2 mm; the support plate 6 is also provided with three oil ports, namely a W port, a V port and a U port, wherein the W port is communicated with the second communication shaft 8 hole, the V port is communicated with the U port to form an oil path Z3, the positions of the W port and the V port correspond to the positions of the S port and the A port on the manual hydraulic pump 1, and double seal ring mounting grooves are formed around the V port; the first conversion connector 13 and the second conversion connector 14 respectively extend into the W port and the V port; the U-shaped opening, the W-shaped opening and the V-shaped opening are positioned on the opposite sides of the support plate 6, the connector 9 is arranged on the U-shaped opening, and the position of the U-shaped opening can be adjusted according to an actual hydraulic system.
As shown in fig. 12, the connecting plate 5 is located between the support plate 6 and the manual hydraulic pump 1, a through hole 20 for passing through the second adapter 14 is provided on the connecting plate 5, two oil ports of a T port and a Z port are coaxially provided on the opposite side of the connecting plate 5, and the T port and the Z port are communicated to form an oil path L3; one end of the first conversion connector 13 is inserted into a T-shaped opening, the depth of the T-shaped opening is larger than the length of the first conversion connector 13 extending out of the pump body 11, and the diameter of the through hole 20 is larger than the maximum outer diameter of the second conversion connector 14.
The pressing plate 7 is provided with four oil ports of an L port, a Q port, an X port and a Y port, and sealing ring mounting grooves are formed around the X port and the Y port, wherein the L port and the Q port are positioned on the inner side of the pressing plate 7, the X port and the Y port are positioned on the outer side of the pressing plate 7, the L port and the X port are communicated to form an oil path B1, and the Q port and the Y port are communicated to form an oil path B2; the positions of the L port and the Q port correspond to the positions of the F port and the E port on the hydraulic lock 2 and are mutually connected, wherein the positions between the L port and the F port and between the Q port and the E port are axially sealed through rubber sealing rings, and the positions of the X port and the Y port can be adjusted according to an actual hydraulic system. The hydraulic lock 2 is sealed in the first mounting groove 35 through the pressing plate 7, and an X port and a Y port on the pressing plate 7 are axially sealed with the hydraulic system through O-shaped sealing rings and are respectively the same with two sides of the hydraulic cylinder and used for supplying hydraulic cylinder piston actuating oil.
As shown in fig. 14, in the schematic view of the split independent radial sealing structure of the oil port of the present invention, the first conversion connector 13 of the port of the manual hydraulic pump 1S and the second conversion connector 14 of the port a are respectively radially sealed with the connecting plate 5 and the support plate 6 by using O-shaped rubber sealing rings, and simultaneously, the port 5T of the connecting plate and the port 6W of the support plate are axially sealed by using double O-shaped rubber sealing rings, and by adopting a combination manner of the axial sealing and the radial sealing, the influence of the positional deviation between the port a and the port a of the pump body 11 on the sealing of the connecting plate 5 and the first conversion connector 13, and the support plate 6 and the second conversion connector 14 is eliminated, so that the integration of the device is facilitated. The first conversion connector 13 is inserted into the T-shaped opening of the connecting plate 5, the second conversion connector 14 is inserted into the W-shaped opening of the support plate 6 through the through hole 20, and the first conversion connector 13 and the T-shaped opening as well as the second conversion connector 14 and the W-shaped opening are radially sealed by adopting rubber sealing rings to form a passage.
As shown in fig. 15, a central hole is formed in the middle of the communication shaft 8, a sealing ring mounting groove is formed in the outside of the communication shaft 8, one end of the communication shaft 8 is inserted into the first communication shaft hole 19, the other end is inserted into the second communication shaft hole 21, a rubber sealing ring is used for radial sealing between the communication shaft 8 and the cover plate 4 and between the communication shaft 8 and the support plate 6, and an opening M in the cover plate 4 is communicated with an opening W in the Z support plate 6 to form a passage. The shell 3 and the cover plate 4 are connected in an inserted way through the communication shaft 8 to form an oil path of the port of the manual hydraulic pump 1A, and the radial sealing mode of the O-shaped sealing ring and the check ring is adopted to ensure the oil path sealing of the communication shaft 8, the support plate 6 and the cover plate 4.
As shown in fig. 16, an explosion schematic diagram of the small-sized integrated manual hydraulic driving device of the present invention shows the assembly relationship and the fixing manner of each component, and the support plate 6, the cover plate 4, the pressing plate 7 and the housing 3 are connected and fixed by screws.
As shown in fig. 17, the principle schematic diagram of the small integrated manual hydraulic driving device system of the present invention is that the hydraulic oil is pressurized by pressing the operation handle 10, so as to drive the piston of the hydraulic cylinder to move, and when the operation handle 10 is stopped, the hydraulic cylinder is self-locked at a certain position under the action of the hydraulic lock 2. By rotating the different positions of the switch handle 12, the direction of movement of the hydraulic cylinder piston can be changed. When the manual pressurizing function is not required to be started, the reversing handle 12 is turned to the middle position, and the oil ports A and B of the manual hydraulic pump 1 are closed.
The working principle of the small integrated manual hydraulic driving device of the invention is described below through specific embodiments.
The small integrated manual hydraulic driving device provided by the invention is provided with three finished oil ways:
Oil passage 1:
oil passage 2:
Oil passage 3:
wherein the oil way 1 and the oil way 2 are working oil ways, and the oil way 3 is an oil supplementing oil way;
As shown in fig. 17, the X port and the Y port of the small integrated manual hydraulic driving device are respectively connected with two sides of a hydraulic cylinder piston, when the piston is required to move upwards, the reversing handle 12 of the manual hydraulic pump 1 is switched to be parallel to the operating handle 10, the tail part of the reversing handle faces in the opposite direction, the operating handle 10 is pressed, the oil in the upper cavity of the hydraulic cylinder piston reaches the opening of the manual hydraulic pump 1B through the X port and the oil line 1, after being pressurized by the manual hydraulic pump 1, the oil is discharged from the opening of the manual hydraulic pump 1A, passes through the oil line 2 and reaches the Y port of the lower cavity of the hydraulic cylinder piston, the oil pressure in the lower cavity of the piston is higher than the oil pressure in the upper cavity, and the piston moves upwards; conversely, when the piston is required to move downwards, the reversing handle 12 of the manual hydraulic pump 1 is switched to be parallel to the operating handle 10, the tail part of the reversing handle faces the same direction, the operating handle 10 is pressed, oil in the lower cavity of the piston of the hydraulic cylinder reaches the port 1A of the manual hydraulic pump through the Y port and the oil path 2, after being pressurized by the manual hydraulic pump 1, the oil is discharged from the port 1B of the manual hydraulic pump, passes through the oil path 1 and reaches the port X of the lower cavity of the piston of the hydraulic cylinder, the oil pressure of the upper cavity of the piston is higher than that of the lower cavity, and the piston moves downwards; when oil is required to be replenished in the working process, the oil is automatically replenished to the system through the oil way 3 through the S port.
By changing the operation handles 10 of different lengths, the magnitude of the operation force pressing the operation handles 10 during use can be changed, and the longer the operation handles 10 are, the smaller the operation force pressing the operation handles 10 is. When the small integrated manual hydraulic driving device is not needed to work, the operating handle 10 of the manual hydraulic pump 1 can be detached.