CN218000025U - Hydraulic pneumatic reversing switch - Google Patents
Hydraulic pneumatic reversing switch Download PDFInfo
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- CN218000025U CN218000025U CN202222296939.XU CN202222296939U CN218000025U CN 218000025 U CN218000025 U CN 218000025U CN 202222296939 U CN202222296939 U CN 202222296939U CN 218000025 U CN218000025 U CN 218000025U
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Abstract
The utility model discloses a fluid pressure type pneumatic reversing switch relates to hydropneumatic system technical field, and it needs control circuit control when can partially solve among the prior art pneumatic switching-over valve switching-over at least, leads to the high problem of hydropneumatic system complexity. The utility model discloses pneumatic reversing switch of fluid pressure type, include pneumatic switching-over valve and locate the switching-over case in the pneumatic switching-over valve, still include: a driving component: the pneumatic reversing valve is used for converting hydraulic pressure into driving thrust for pushing the pneumatic reversing valve to reverse; resetting the assembly: the reset thrust is used for pushing the driving component to reset; the switch main part: the switch main body is fixedly connected with the pneumatic reversing valve; the switch main body is provided with a hydraulic oil inlet which is communicated with the input end of the driving component and is in sealing connection with the input end of the driving component; the driving assembly and the reset assembly are arranged in the switch main body along the same axis, the directions of the driving thrust and the reset thrust are opposite, and the driving assembly and the reset assembly are both arranged in parallel with the axis of the reversing valve core.
Description
Technical Field
The utility model relates to a hydropneumatic system technical field, concretely relates to pneumatic reversing switch of fluid pressure type.
Background
In some hydropneumatic systems, when the hydraulic pressure of mechanical equipment reaches a set value, the reversing needs to be carried out through a pneumatic reversing valve, at present, the reversing of the pneumatic reversing valve is mainly realized through manual reversing or through a control circuit, and when the control of the pneumatic reversing valve is realized through the control circuit and electronic components thereof, the cost is high, the assembly is complex, and the replacement cost is high, so that a device capable of directly switching an air passage according to the hydraulic pressure value in the hydropneumatic system needs to be designed according to the characteristics of the hydropneumatic system, the complexity of the hydropneumatic system is reduced, and the operation reliability of the hydropneumatic system is improved.
In view of this, the present application is specifically made.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pneumatic reversing switch of fluid pressure type can switch pneumatics according to the hydraulic pressure value among the hydropneumatic system for need control circuit control when solving among the prior art pneumatic reversing valve switching-over, lead to the high problem of hydropneumatic system complexity.
In order to solve the technical problem, the utility model adopts the following scheme:
the utility model provides a pneumatic reversing switch of fluid pressure type, include pneumatic switching-over valve and locate the switching-over case in the pneumatic switching-over valve, still include:
a driving component: the pneumatic reversing valve is used for converting hydraulic pressure into driving thrust for pushing the pneumatic reversing valve to reverse;
resetting the assembly: the reset thrust is used for pushing the driving component to reset;
the switch main part: the switch main body is fixedly connected with the pneumatic reversing valve; the switch main body is provided with a hydraulic oil inlet which is communicated with the input end of the driving component and is in sealing connection with the input end of the driving component; the driving assembly and the reset assembly are arranged in the switch main body along the same axis, the directions of the driving thrust and the reset thrust are opposite, and the driving assembly and the reset assembly are both arranged in parallel with the axis of the reversing valve core.
In some optional embodiments, the driving assembly comprises a valve core supporting seat, a driving valve core and a driving plate which are arranged in the switch main body; the valve core supporting seat is provided with a through hole, the driving valve core is arranged in the through hole and is movably and hermetically connected with the valve core supporting seat, and the valve core supporting seat is hermetically connected with the hydraulic oil inlet through the through hole and the driving valve core; the other end, far away from the hydraulic oil inlet, of the driving valve core is connected with the driving plate, the driving plate is pressed on the valve core supporting seat by the reset thrust, and the driving plate is pressed on or fixed on the input end of the reversing valve core.
In some optional embodiments, the connection between the driving valve core and the driving plate includes any one of a fixed connection, a pressing connection, an integrally molded connection, and a detachable connection.
In some optional embodiments, the driving assembly includes an oil inlet sealing ring disposed at the hydraulic oil inlet, a valve seat sealing ring disposed at the bottom of the valve core supporting seat, and a valve core sealing ring disposed in the through hole.
In some optional embodiments, the through hole includes a wide diameter section and a narrow diameter section, the wide diameter section is disposed near the hydraulic oil inlet, the valve core sealing ring is disposed at the other end of the wide diameter section, which is far away from the hydraulic oil inlet, a supporting ring is further disposed in the wide diameter section, the supporting ring is located between the hydraulic oil inlet and the valve core sealing ring, and the driving valve core is movably connected with the supporting ring.
In some optional embodiments, the reset assembly includes an elastic pressing unit pressed or fixed on the driving assembly, and the elastic pressing unit is disposed in the switch main body.
In some alternative embodiments, the elastic pressing unit includes any one of a compression spring or a repulsive permanent magnet set.
In some optional embodiments, the reset assembly comprises a compression spring arranged in the switch main body, and a pressure regulating unit for regulating the pressure of the compression spring; the pressure regulating unit comprises an adjusting screw rod in threaded connection with the switch main body and a pressure regulating piece arranged in the switch main body, the pressure regulating piece is pressed against the end part of the adjusting screw rod, and two ends of the compression spring are respectively pressed against or fixed on the driving assembly and the pressure regulating piece.
In some alternative embodiments, the shape of the pressure regulating member includes any one of a plate type and a T-type.
In some optional embodiments, the adjusting device further comprises a fastening nut which is in threaded connection with the adjusting screw.
The utility model has the advantages that:
the utility model discloses a pneumatic reversing switch of fluid pressure type, include pneumatic switching-over valve and locate the switching-over case in the pneumatic switching-over valve, still include:
a driving component: the pneumatic reversing valve is used for converting hydraulic pressure into driving thrust for pushing the pneumatic reversing valve to reverse;
resetting the assembly: the reset thrust is used for pushing the driving component to reset;
the switch main part: the switch main body is fixedly connected with the pneumatic reversing valve; the switch main body is provided with a hydraulic oil inlet which is communicated with the input end of the driving component and is in sealing connection with the input end of the driving component; the driving assembly and the reset assembly are arranged in the switch main body along the same axis, the directions of the driving thrust and the reset thrust are opposite, and the driving assembly and the reset assembly are both arranged in parallel with the axis of the reversing valve core.
The effect is as follows: through setting up drive assembly and the subassembly that resets, and the reverse overall conception of the drive thrust that produces behind the reset thrust of subassembly and the drive assembly pressurized for in hydropneumatic system, the switching of gas circuit can be directly controlled through the hydraulic pressure value among the hydropneumatic system, can effectively reduce hydropneumatic system's complexity, improves the operating stability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic front view of the embodiment of the present invention;
FIG. 3 isbase:Sub>A schematic sectional view of A-A in FIG. 2.
Reference numerals and corresponding part name descriptions:
1-switch body, 11-shell, 12-bottom plate, 13-hydraulic oil inlet, 2-pneumatic reversing valve, 21-reversing valve core, 3-driving component, 31-valve core supporting seat, 311-through hole, 32-driving valve core, 33-driving plate, 34-valve core sealing ring, 35-valve seat sealing ring, 36-oil inlet sealing ring, 37-supporting ring, 4-resetting component, 41-compression spring, 42-pressure regulating piece, 43-regulating screw rod and 44-fastening nut.
Detailed Description
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. are directions or positional relationships based on the directions or positional relationships shown in the drawings, or directions or positional relationships conventionally placed when the products of the present invention are used, and are only for convenience of description of the present invention and simplification of the description, but not for indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1 to fig. 3, the present embodiment provides a hydraulic pressure type direction-changing pressure switch, which includes a pneumatic direction-changing valve 2 and a direction-changing valve core 21 disposed in the pneumatic direction-changing valve 2, and further includes:
the driving component 3: the pneumatic reversing valve 2 is used for converting hydraulic pressure into driving thrust for pushing the pneumatic reversing valve 2 to reverse;
the resetting component 4: the reset thrust for pushing the drive assembly 3 to reset is provided;
switch main body 1: the switch main body 1 is fixedly connected with the pneumatic reversing valve 2; a hydraulic oil inlet 13 communicated and hermetically connected with the input end of the driving component 3 is arranged on the switch main body 1; the driving assembly 3 and the reset assembly 4 are arranged in the switch main body 1 along the same axis, the direction of the driving thrust is opposite to that of the reset thrust, and the driving assembly 3 and the reset assembly 4 are both arranged in parallel with the axis of the reversing valve core 21.
In this embodiment, set up drive assembly 3 and reset assembly 4 in switch main part 1 along same axis through the setting, and reset assembly 4's the thrust that resets is reverse with the drive thrust that produces behind the drive assembly 3 pressurized, can make hydraulic oil follow hydraulic pressure oil inlet 13 get into behind the switch main part 1, hydraulic oil can produce hydraulic pressure to drive assembly 3's input, drive assembly 3 receives behind the hydraulic pressure, can change its hydraulic pressure who receives into drive thrust, in fact, drive assembly 3 plays the effect and is the transmission to hydraulic pressure, when hydraulic pressure is greater than reset thrust, can make drive assembly 3 promote the removal of switching-over valve core 21 along its axis, and then make pneumatic switching-over valve 2 switching-over, after the hydraulic oil disconnection, then reset assembly 4's reset thrust can promote drive assembly 3 and reset, at this moment, pneumatic switching-over valve 2 accomplishes under reset spring's effect and resets. Therefore, in the hydropneumatic system, the hydraulic pressure value in the direct hydropneumatic system switches the gas circuit, and therefore, through setting up drive assembly 3 and reset assembly 4, and drive thrust and the reverse general conception of reset thrust, can make in the hydropneumatic system, the switching of gas circuit can be directly controlled through the hydraulic pressure value in the hydropneumatic system, can effectively reduce hydropneumatic system's complexity, improves operating stability.
The pneumatic directional control valve 2 in this embodiment is a prior art device in a pneumatic system, and will not be described herein.
In some optional embodiments, the driving assembly 3 includes a valve core support seat 31, a driving valve core 32, and a driving plate 33 disposed in the switch main body 1; the valve core supporting seat 31 is provided with a through hole 311, the driving valve core 32 is arranged in the through hole 311 and is movably and hermetically connected with the valve core supporting seat 31, and the valve core supporting seat 31 is hermetically connected with the hydraulic oil inlet 13 through the through hole 311 and the driving valve core 32; the other end of the driving valve core 32, which is far away from the hydraulic oil inlet 13, is connected with a driving plate 33, the driving plate 33 is pressed on the valve core supporting seat 31 by the resetting thrust, and the driving plate 33 is pressed or fixed on the input end of the reversing valve core 21.
In this embodiment, as shown in fig. 1 and fig. 3, the switch main body 1 includes a housing and a bottom plate 12, the housing is fixedly connected to the bottom plate 12, as shown in fig. 3, the hydraulic oil inlet 13 is disposed on the bottom plate 12, the valve core support seat 31 is disposed in the housing of the switch main body 1 and fixed to the bottom plate 12, the driving valve core 32 is disposed in the through hole 311 of the valve core support seat 31 and movably and hermetically connected to the through hole 311, the valve core support seat 31 is hermetically connected to the hydraulic oil inlet 13 through the through hole 311 of the valve core support seat, so that hydraulic oil can be prevented from leaking into other gaps of the housing, and the driving plate 33 cannot push the reversing valve core 21.
In some alternative embodiments, the connection between the driving valve element 32 and the driving plate 33 includes any one of a fixed connection, a pressing connection, an integrally molded connection, and a detachable connection. Since the reset assembly 4 has a reset thrust opposite to the driving thrust of the driving assembly 3, the driving plate 33 can be pressed against the driving valve plug 32 under the pushing action of the reset thrust of the driving plate 33, and in this embodiment, as shown in fig. 3, the driving plate 33 is pressed against the driving valve plug 32 through the reset thrust.
In some embodiments, the driving valve element 32 and the driving plate 33 may be fixed by welding, in some embodiments, the driving valve element 32 and the driving plate 33 may be detachably fixed by a threaded connection, and in some embodiments, the driving valve element 32 and the driving plate 33 may be manufactured by integral molding.
In some alternative embodiments, the driving assembly 3 includes an oil inlet sealing ring 36 disposed at the hydraulic oil inlet 13, a valve seat sealing ring 35 disposed at the bottom of the spool support seat 31, and a spool sealing ring 34 disposed in the through hole 311. Can improve the leakproofness of hydraulic pressure oil inlet 13 through setting up oil inlet sealing washer 36, set up valve seat sealing washer 35 and can improve the leakproofness between disk seat and the bottom plate 12, through setting up case sealing washer 34, can improve the leakproofness between driving valve core 32 and through-hole 311, the sealing washer in this embodiment is common O type sealing washer.
In some optional embodiments, the through hole 311 includes a wide diameter section and a narrow diameter section, the wide diameter section is disposed near the hydraulic oil inlet 13, the valve core sealing ring 34 is disposed at the other end of the wide diameter section away from the hydraulic oil inlet 13, a supporting ring 37 is further disposed in the wide diameter section and located between the hydraulic oil inlet 13 and the valve core sealing ring 34, and the driving valve core 32 is movably connected to the supporting ring 37. In this embodiment, as shown in fig. 3, the wide diameter section is communicated with the narrow diameter section, the valve core sealing ring 34 is disposed at the other end of the wide diameter section, which is far away from the hydraulic oil inlet 13, and the support ring 37 located between the hydraulic oil inlet 13 and the valve core sealing ring 34 is disposed in the wide diameter section, so that hydraulic oil can be prevented from directly contacting the valve core sealing ring 34, the durability of the valve core sealing ring 34 can be improved, the sealing effect can be further improved, and oil leakage of the valve core can be avoided.
In some optional embodiments, the reset component 4 includes an elastic pressing unit that presses or is fixed on the driving component 3, and the elastic pressing unit is disposed in the switch main body 1.
In some alternative embodiments, the elastic pressing unit includes any one of a compression spring 41 or a repulsive permanent magnet set. In this example. The elastic pressing unit adopts a compression spring 41, in some embodiments, two permanent magnets with the same polarity and one ends close to each other can be adopted, and the repulsive force generated by the same polarity of the permanent magnets can be used as the pushing force for pushing the driving assembly 3.
In some optional embodiments, the reset assembly 4 includes a compression spring 41 disposed in the switch main body 1, and a pressure regulating unit for regulating the pressure of the compression spring 41; the pressure regulating unit comprises a regulating screw 43 in threaded connection with the switch main body 1 and a pressure regulating piece 42 arranged in the switch main body 1, the pressure regulating piece 42 is pressed against the end part of the regulating screw 43, and two ends of the compression spring 41 are respectively pressed against or fixed on the driving component 3 and the pressure regulating piece 42. Through setting up the pressure regulating unit, can be so that through rotatory adjusting screw 43, then can adjust the position that adjusting screw 43 is located the tip in switch main part 1, and then can adjust the position of the pressure regulating part 42 of support in adjusting screw 43 tip, and then can adjust compression degree of compression spring 41 through pressure regulating part 42, and then adjust the thrust that resets, just can promote the removal of switching-over valve core 21 when the thrust that drives needs to be greater than the thrust that resets, therefore, through adjusting the size of the thrust that resets, can promote pneumatic switching-over valve 2 switching-over to adjust to different hydraulic pressure values, and is convenient, fast and effective.
In some alternative embodiments, the shape of the pressure regulating member 42 includes any one of a plate type and a T-shape. In this embodiment, as shown in fig. 3, the pressure regulating member 42 is T-shaped, and one end of the T-shaped pressure regulating member 42 away from the adjusting screw 43 extends into the compression spring 41, so that the stability during use can be improved.
In some alternative embodiments, a fastening nut 44 is further included, which is threadedly coupled to the adjustment screw 43. Through the arrangement of the fastening nut 44, after the pressure adjustment is determined by rotating the adjusting screw 43, the adjusting screw 43 cannot be reversely rotated under the action of the elastic thrust of the compression spring 41 by rotating the fastening nut 44, so that the problem of instability during reversing of the pneumatic reversing valve 2 is caused.
When the pneumatic reversing valve 2 is used, as shown in fig. 3, hydraulic oil is introduced into the switch main body 1 from the hydraulic oil inlet 13, because the hydraulic oil has a certain hydraulic pressure, and the hydraulic oil inlet 13 is hermetically connected with the valve core base and the through hole 311, once the hydraulic pressure of the hydraulic oil is greater than the reset thrust generated by the compression spring 41, the drive valve core 32 moves upward under the action of the hydraulic pressure, in this embodiment, the drive thrust generated by the drive plate 33 pushing the reversing valve core 21 to move is actually the residual thrust generated by the hydraulic pressure counteracting the reset thrust, after the hydraulic pressure is greater than the reset thrust, the drive valve core 32 pushes the drive plate 33 to move upward, the drive plate 33 pushes the reversing valve core 21 to move, so that the pneumatic reversing valve 2 performs reversing, and when the reversing pressure value of the pneumatic reversing valve 2 needs to be adjusted, the adjustment screw 43 can be rotated.
It is to be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, and such changes and modifications are to be considered as within the scope of the invention.
Claims (10)
1. Fluid pressure type pneumatic reversing switch includes pneumatic switching-over valve (2) and locates switching-over case (21) in pneumatic switching-over valve (2), its characterized in that still includes:
drive assembly (3): the hydraulic pressure is converted into driving thrust for pushing the pneumatic reversing valve (2) to reverse;
reset assembly (4): the reset thrust is used for pushing the driving component (3) to reset;
switch main body (1): the switch main body (1) is fixedly connected with the pneumatic reversing valve (2); a hydraulic oil inlet (13) which is communicated with the input end of the driving component (3) and is connected with the input end of the driving component in a sealing way is arranged on the switch main body (1);
the driving assembly (3) and the reset assembly (4) are arranged in the switch main body (1) along the same axis, the directions of the driving thrust and the reset thrust are opposite, and the driving assembly (3) and the reset assembly (4) are both arranged in parallel with the axis of the reversing valve core (21).
2. The hydraulically and pneumatically commutated switch according to claim 1, characterized in that the drive assembly (3) comprises a valve element support (31), a drive valve element (32), a drive plate (33) which are arranged in the switch body (1);
the valve core supporting seat (31) is provided with a through hole (311), the driving valve core (32) is arranged in the through hole (311) and is movably and hermetically connected with the valve core supporting seat (31), and the valve core supporting seat (31) is hermetically connected with the hydraulic oil inlet (13) through the through hole (311) and the driving valve core (32);
the other end, far away from the hydraulic oil inlet (13), of the driving valve core (32) is connected with a driving plate (33), the driving plate (33) is pressed on the valve core supporting seat (31) by the reset thrust, and the driving plate (33) is pressed on or fixed on the input end of the reversing valve core (21).
3. The hydraulically and pneumatically actuated reversing switch according to claim 2, characterized in that the connection between the drive spool (32) and the drive plate (33) comprises any of a fixed connection, a press-fit connection, an integrally molded connection, and a detachable connection.
4. The switch of claim 2, wherein the driving assembly (3) comprises an oil inlet sealing ring (36) disposed at the hydraulic oil inlet (13), a valve seat sealing ring (35) disposed at the bottom of the valve core supporting seat (31), and a valve core sealing ring (34) disposed in the through hole (311).
5. The hydraulic pneumatic reversing switch according to claim 4, wherein the through hole (311) comprises a wide section and a narrow section, the wide section is disposed near the hydraulic oil inlet (13), the valve core sealing ring (34) is disposed at the other end of the wide section, which is far away from the hydraulic oil inlet (13), a supporting ring (37) is further disposed in the wide section, the supporting ring (37) is disposed between the hydraulic oil inlet (13) and the valve core sealing ring (34), and the driving valve core (32) is movably connected with the supporting ring (37).
6. The hydraulic pneumatic reversing switch according to claim 1, wherein the reset component (4) comprises an elastic abutting unit abutting or fixed on the driving component (3), and the elastic abutting unit is arranged in the switch body (1).
7. The hydropneumatic tumbler switch according to claim 6, characterized in that the elastic pressing unit comprises either a compression spring (41) or a set of repelling permanent magnets.
8. The hydraulically and pneumatically commutated switch according to claim 6, characterized in that the return assembly (4) comprises a compression spring (41) arranged in the switch body (1), a pressure regulating unit for regulating the pressure of the compression spring (41);
the pressure regulating unit comprises a regulating screw rod (43) in threaded connection with the switch main body (1) and a pressure regulating piece (42) arranged in the switch main body (1), the pressure regulating piece (42) abuts against the end part of the regulating screw rod (43), and two ends of the compression spring (41) respectively abut against or are fixed on the driving assembly (3) and the pressure regulating piece (42).
9. The hydropneumatic directional switch of claim 8, wherein the shape of the pressure regulating member (42) includes any one of a plate type and a T-type.
10. The hydraulic pneumatic tumbler switch according to claim 8, characterized in that it further comprises a clamping nut (44) which is screwed onto the adjusting screw (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222296939.XU CN218000025U (en) | 2022-08-31 | 2022-08-31 | Hydraulic pneumatic reversing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222296939.XU CN218000025U (en) | 2022-08-31 | 2022-08-31 | Hydraulic pneumatic reversing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218000025U true CN218000025U (en) | 2022-12-09 |
Family
ID=84326629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222296939.XU Active CN218000025U (en) | 2022-08-31 | 2022-08-31 | Hydraulic pneumatic reversing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218000025U (en) |
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2022
- 2022-08-31 CN CN202222296939.XU patent/CN218000025U/en active Active
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