FI125380B - Hydraulic valve housing and hydraulic valve - Google Patents

Description

HYDRAULIC VALVE BODY AND HYDRAULIC VALVE

The invention relates to a hydraulic valve body adapted to be used to control actuators external to the body. The invention further relates to a hydraulic valve comprising said body.

BACKGROUND OF THE INVENTION

Various hydraulic valve bodies are known in the art for controlling actuators external to the body. Hydraulic bodies are operated by controlling the valves therein to direct a hydraulic fluid, such as hydraulic oil, to specific targets as desired. Hydraulic lines are connected to the inlet connections on the body of the hydraulic valve and hydraulic hoses are connected to the hose connections, respectively. By controlling and moving the spindles inside the body, the hydraulic oil is displaced to certain hoses. Such control may be electrically, compressed air or mechanically controlled. When using hydraulic oils, pressure strokes sometimes occur in the hoses, which can cause damage. Damage can be prevented by using emergency and non-return valves.

One such prior art hydraulic valve body is illustrated in Figure 1 (Prior Art), wherein the body comprises ducts within it, hose connections (C1-C6) for connecting actuators (E1-E4), and hydraulic fluid inlets (P1, P2). The housing is further provided with locations for control means, such as externally controlled spindles, to direct fluid to a particular hose connection. The housing also includes locations for one or more emergency valves to be located there, the housings of which are connected via a duct to a return connection for returning hydraulic fluid from the emergency valve to the reservoir / pressure accumulator (applicant valve body Έ8312Ρ4 ”). This prior art solution achieves the functions 1/1, 1/2 and 1/3 described elsewhere in this document, but not the function 1/4 (simultaneous cylinder reduction and spreading action), or diagonal movements (function 3/1). Also known is the applicant's second proprietary valve body, "E8312PV," which produces correspondingly diagonal movements (functions 3/1, 3/3, and 3/3) but not function 3/4 (simultaneous reduction and spreading of cylinders). Still further, the applicant's third proprietary valve body "E8312PVU" is known to provide functions 2/1, 2/2 and 2/3, but not, for example, cylinder locking or diagonal movement of the cylinders.

However, the problem with such solutions is, for example, that they do not, as such, allow for many separate movements. For example, if it is desired to control multiple types of actuators such as the U plow, zoom plow, articulated plow and paddle shovel, at least two or three separate hydraulic valve bodies having at least one or two control vents each need to be operated the solenoid valve. In addition, each valve body must be provided with its own main hose connections (P1, P2), which makes the assembly vulnerable and complex, but also expensive, since a device using different actuators must have several types of valve bodies.

SUMMARY

It is an object of the invention to provide a hydraulic valve body which can eliminate or at least reduce the drawbacks of the prior art. According to one embodiment, the invention seeks to provide a single hydraulic valve body which does not require hoses between different valves. It is a further object to simplify the installation of valves and related parts, and to provide a hydraulic valve body which is simple in construction and configurable in one valve body to achieve at least the functions mentioned above (and more specifically elsewhere in this document). , 1/2, 1/3, 1/4, 2/1, 2/2, 2/3, and 3/1, 3/3, 3/3, and 3/4. It is an object of the invention to provide a hydraulic valve body which is adaptable to control several types of actuating means with as few parts of the body as possible.

Some objects of the invention are achieved by the hydraulic valve body of claim 1.

The hydraulic valve body according to the invention is characterized in what is claimed in the hydraulic valve body claim 1. In addition, the hydraulic valve according to the invention is characterized in what is stated in claim 18 concerning the hydraulic valve.

According to a first embodiment of the invention, the hydraulic valve body comprises two main connections for delivering pressurized hydraulic fluid to and from the duct system. It should be noted that the hydraulic fluid may be supplied to either of the main connections, the other main connection acting as a return channel, respectively, and vice versa, thereby providing bidirectional movements of the actuators to be connected to the body of the invention. Most preferably, the main connection choices are made by means of external control means, for example valves. It is to be noted that the invention is not limited to the types of actuators that can be coupled to the hydraulic valve body of the invention, but that some examples of actuators include cylinders, motors or rotary motors. Such can be used, for example, to control parts and blades of the U-plow, zoom plow, articulated plow and paddle shovel.

According to the invention, the housing comprises four outlet connections (ci +, C2 +, C5 +, C8 +) for directing the hydraulic fluid from the body duct system to the out-of-body actuators, and four corresponding inlet connections (C3-C4, C6, C7) for returning the hydraulic fluid. It should be noted that, depending on the direction of operation and / or the configuration of the frame ductwork, one and the same input may be either an input or an output. According to one embodiment of the invention, the body duct system is adapted to be configured as different flow circuits such that the body comprises: - at least one first channel (K1) arranged between a first outlet (C5 +) and a second inlet (C7-), a second channel (K2) arranged between a second output (C8 +), and - a third channel (K3) arranged between at least one third input (C4-) and a fourth input (C3-).

According to one embodiment, the housing also comprises a fourth channel (K4) arranged between the first outlet (C5 +) and the third outlet (C1 +), the fourth channel (K4) being adapted to be openably closed by, for example, a plug (T4) located in said fourth channel. Further, the housing may also comprise a fifth channel (K5) arranged between the fourth outlet (C2 +) and the second main interface (P2), the Fifth channel (K5) being also adapted to be openably closed by, for example, a plug (T5) located in said fifth channel.

According to yet another embodiment, the first and second control channels (MK1, MK2) are arranged on the frame in connection with said first, second and third channels (K1, K2, K3) for two independently controlled control means (M1, M2). Most preferably, the channel of the first control means extends through the first, second and third channels (K1, K2, K3) and is arranged in connection with the first two outlets (C2 +, C8 +) and the first two inputs (C3, C7-). In addition, the channel of the second control means most preferably extends through the first, second and third channels (K1, K2, K3) and is arranged in connection with two second outlets (C1 +, C5 +) and two second inputs (C4, C6-). With said arrangements, the body is adapted to enable at least six different functions to be achieved by said actuating means using only two externally actuated control means, such as a solenoid valve.

In accordance with the invention, check valves are provided within the body for returning fluid through the check valve to the cylinder side of the cylinder connected to the valve body and to return excess fluid due to volume difference to the pressure accumulator return connection arranged to release pressure to the first free passage or outlet. In such an example, the housing is provided with one or more spare valves and non-return valves, and the functions are located on the same housing. This eliminates the need for tubing between the various valves, and the associated assembly of the valves is simplified and installation time shortened. A further advantage is that the structure is easier to protect, goes into a smaller space and requires less breakable or wearable parts. It is also an advantage that the hydraulic fluid through the relief valve is returned to the container from one connection, or alternatively, the liquid is returned through the check valve to the cylinder shaft connected to the valve body and excess fluid to the pressure accumulator return connection.

The invention provides clear advantages over the prior art. Now, with one valve body, the functions 1/1, 1/2, 1/3, 1/4, 2/1, 2/2, 2/3, and 3/1, 3/3, 3/3 and 3 can be accomplished / 4, which previously required three separate valve bodies. In particular, the valve body arrangement according to the invention, its ducts and the connections between the various outlets and inlets and the main lines are arranged so that all said functions can be achieved using only two external control means, such as a solenoid valve. This is a clear advantage because, for example, for different types of snowploughs, buckets and blades, it is no longer necessary to use only one valve body according to the invention which is easily and quickly configurable for functions 1/1, 1/2, 1/3 and 1/4, or functions 2/1, 2/2 and 2/3, or 3/1, 3/3, 3/3 and 3/4. Thus, three separate valve bodies and at least three or more external control means, such as a solenoid valve, are no longer required to perform said functions. This is a noticeable cost saving and, in addition, the valve body and its function are much more reliable due to fewer movable and controllable parts.

DESCRIPTION OF THE FIGURES

In the following section, preferred embodiments of the invention will be described in greater detail with reference to the accompanying drawings, in which

Figure 1 shows a prior art valve body,

Figures 2A-2B illustrate an exemplary valve body in accordance with a preferred embodiment of the invention,

Figures 3A-3B illustrate an exemplary valve body in accordance with a preferred embodiment of the invention,

Figures 4A-4B illustrate an exemplary valve body in accordance with a preferred embodiment of the invention,

Figures 5A-5B show another exemplary valve body according to a preferred embodiment of the invention, and

Figure 6 illustrates duct assemblies of an exemplary valve body in accordance with a preferred embodiment of the invention.

DETAILED DESCRIPTION OF THE FIGURES

Figure 1 is described in the prior art section.

Figures 2A-2B, 3A-3B, 4A-4B and 5 illustrate preferred embodiments of an exemplary valve body according to the invention, wherein the hydraulic valve body (100) comprises two main ports (P1, P2) for discharging pressurized hydraulic fluid into and out of the conduit. The housing further comprises four outlet ports (C1 +, C2 +, C5 +, C8 +) for directing hydraulic fluid from the hull ductwork to external actuators (E1, E2, E3, E4) and four corresponding inlets (C3-, C4-, C6-, C7-) hydra for directing said operating means back into the ductwork of the body.

The body (100) further comprises: - a first channel (K1) arranged between at least one first output (C5 +) and a second input (C7-), - a second channel (at least one) arranged between a first input (C6-) and a second output (C8 +). K2), and - a third channel (K3) arranged between at least one third input (C4-) and the fourth input (C3-).

It should be noted that said third channel (K3) allows one additional movement, i.e. a diagonal movement. According to one example, when the external control means are inactive (e.g., no current in the solenoid valves), diagonal movement is specifically enabled by the third channel (K3) arranged between the third input (C4-) and the fourth input (C3-). Thus, according to one example, the second channel (K2) is closed by said control means). While the external control means are active (e.g., solenoid valves are energized), the third channel (K3) is adapted to be closed by said control means and the diagonal movement is closed. Hereby, the second channel (K2) is arranged to be opened by said control means to the second main interface (P2), wherein said third input (C4-) and the fourth input (C3-) open to the main interface (P2) via said second channel (K2). This enables the control means (E3, E4) connected to either the third input (C4-) or the fourth input (C3-) depending on which control means (M1, M2) is active.

According to one embodiment, the housing also comprises a fourth channel (K4) arranged between the first outlet (C5 +) and the third outlet (C1 +), the fourth channel (K4) being adapted to be openably closed by, for example, a fourth plug (T4) disposed in said fourth channel. Preferably, said fourth plug (T4) is in said fourth channel (K4) such that, when stationary, said fourth plug (T4) closes and, when removed, opens said fourth channel (K4). Preferably, said fourth plug (T4) is located beneath a first plug (T1) fitted to the body such that said first plug (T1) allows, when opened, to remove said fourth plug (T4) from the opening resulting from the removal of the first plug (T1). Preferably, the first plug (T1) for removing the fourth plug again is inserted back into the body so that when the body is in use, the hydraulic oil does not escape from the body structure. In addition, the body (100) most preferably also comprises a fifth channel (K5) arranged on the body between the fourth outlet (C2 +) and the second main interface (P2), the Fifth channel (K5) also being adapted to be openably closed by a third plug (T3) through.

Preferably, said third plug (T3) is in said fifth channel (K5) such that, when stationary, said third plug (T3) closes and opens said fifth channel (K5). Preferably, said third plug (T3) is located beneath a second plug (T2) fitted to the body such that said second plug (T2) allows, when opened, to remove said third plug (T3) from the opening resulting from removal of the second plug (T2). Preferably, said second plug (T2) for removing the third plug is reinserted into the body so that when the body is in use, the hydraulic oil cannot escape from the body structure. Thus, the body (100) of the invention most preferably comprises at least arrangements, such as bores and threads, for said plugs (T1-T4).

Still further, the frame is preferably provided with said first, second and third channels (K1, K2, K3) on first and second control channels (MK1, MK2) for two external control means (M1, M2). Most preferably, the control channel (MK1) of the first control means (M1) extends through the first, second and third channels (K1, K2, K3) and is arranged in connection with the first two output terminals (C2 +, C8 +) and the first two input terminals (C3-, C7-). Furthermore, the control channel (MK2) of the second control means (M2) most preferably extends through the first, second and third channels (K1, K2, K3) and is arranged in connection with two second output terminals (C1 +, C5 +) and two second input terminals (C4-, C6-). With said arrangements, the body can be adapted to provide at least six different functions, most preferably functions 1/1, 1/2, 1/3, 1/4, 2/1, 2/2, 2/3, and 3/1, 3/3 , 3/3, and 3/4, by means of actuators coupled thereto, using only two externally actuated control means, such as a solenoid valve.

Next, the hydraulic valve body according to the invention will be described by explaining some exemplary functions and body configurations to achieve said functions. The following examples illustrate a cylinder for use as an actuator, but it should be noted that the invention is not limited thereto, but other actuators as described elsewhere herein may also be used in connection with the body of the invention.

To enable a first function (e.g. simultaneous operation of two lower cylinders, function 1/1, in particular Figs. 2A, 2B), a first flow circuit (VP1) is configured in the body, wherein the body (100) comprises a first output (C5 +) and a second inlet (C7-). a second channel (K2) arranged between the first channel (K1) and the first inlet (C6-) and the second outlet (C8 +) such that the first outlet (C5 +) is adapted to be coupled to the first side (S5, e.g. the cylinder piston side) of the first actuator (E1); and the first inlet (C6-) is adapted to be coupled to one side (S6, for example a cylinder arm) of the first actuator (E1), and the second outlet (C8 +) is arranged to be coupled to the first side (S8 e.g. piston side) of the second actuator (E2) and the second the input (C7-) is adapted to be connected to another operating mode on one side of the device (E2) (S7, for example, on the cylinder side).

Further, the first main interface (P1) is adapted to connect to a first channel (K1) arranged between the first output (C5 +) and the second input (C7-), and the second main interface (P2) is adapted to connect to the first input (C6-) and the second output (C8 +). second channel (K2).

Said first flow circuit provides a configuration capable of controlling, for example, the simultaneous and opposite movement of two cylinders (E1, E2) (this is possible when the piston-side surface of the cylinders is larger than the cylinder-side end, resulting in a different surface area). force on arm and piston side). The direction of movement depends on which of the two main connections (P1, P2) feed oil to the ductwork of the frame.

Said first function (function 1/1) is achieved by a hydraulic valve according to the invention comprising said first flow circuit when the control means (M1, M2) therein are inactive, for example, the magnetic switches are not switched on.

It should be noted that, according to one embodiment of the invention, to enable additional functions (functions 2/1, 2/2, 2/3, 3/1, 3/2, 3/3 and 3/4), a first output (C5 +), a first input (C6) -), the second inlet (C7-) and the second outlet (C8 +) are adapted to be closed by, for example, screw plugs screwed to the body structures (shown in the positions of said inputs, inter alia in Figs. 3A, 3B, 4A and 4B). Plugs provide additional flow circuits to enable additional functions. It should be noted, however, that when plugged, the first function (1/1) described above is closed and, when the control means (M1, M2) is inactive, the means (e.g., cylinders E3 and E4) are locked.

To enable a second function (e.g., left cylinder function, function 1/2 -specifically FIGS. 2A, 2B), a second flow circuit (VP2) is configured on the body, wherein the body (100) comprises a fourth outlet (C2 +) and a fourth inlet (C3-). Further, the housing comprises a first control channel (MK1) for the first control means (M1) such that the first control means (M1) allows closing the first channel (K1) associated with the second input (C7-) and further opening the first main line through the first channel (K1) to the fourth output (C2 +). ). In addition, in said configuration, the first main interface (P1) is adapted to connect to a first channel (K1) controlled by the first control means (M1) and via said fourth output (C2 +), and a second main interface (P2) is adapted to connect to the second channel (K2) to the fourth input (C3-).

Further, in the housing, the first main interface (P1) is arranged to be connected to said third output (C1 +) controlled by the first channel (K1) and the second control means (M2), and the second main interface (P2) is adapted to connect via said second channel (K2) to said third input (C4). ). With said configuration, the function 1/3 is achieved. Further, by closing, for example, plugging the first outlet (C5 +), function 2/2 is controlled by the control means (M2). These functions are described elsewhere in this document.

For the hydraulic valve, action 1/2 is performed as follows: When power is applied to the control device (M1), the spindle closes the second inlet (C7-), thereby closing the previously described function 1/1. Then, from the first main line (P1), a controlled pressure flow is directed along the channel (K1) to the fourth outlet (C2 +) and from there to the piston side (S2) of the cylinder, whereby oil is directed from the shaft side (S3) to the fourth inlet (C3-). P2) The opposite movement of the cylinder occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

In the example of the second flow circuit, the fourth outlet (C2 +) is arranged to be coupled to the first side (S2, e.g., cylinder piston side) of the third actuator (E3) and the fourth inlet (C3-) is arranged to be connected to the second side (S3, e.g. You do not need to plug in inputs C5 +, C6-, C7- and C8 + to configure the second flow circuit.

According to one embodiment, said second flow circuit (VP2) of said housing can be configured as a second auxiliary flow circuit and to provide a second auxiliary function (e.g., left cylinder operation, function 2/1, particularly Figures 3A, 3B). In this embodiment, at least the second input (C7-) is plugged to provide the configuration shown in Figures 3A and 3B and the function of the third actuator (E3).

For the hydraulic valve, function 2/1 is performed as follows:

When power is applied to the first control means (M1), the controlled pressure flow from the first main connection (P1) is directed along the channel (K1) to the fourth outlet (C2 +) and thence to the cylinder piston side (S2) (K2) along the return connection (P2). The opposite direction of the cylinder occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as the return connection.

To enable a third function (e.g., right cylinder operation, function 1/3, in particular FIGS. 2A, 2B), a third flow circuit (VP3) is configured on the body, wherein the body (100) comprises a third outlet (C1 +) and a third inlet (C4-). a control channel (MK2) for a second control means (M2) for closing and further opening the channel (K1) associated with the first outlet (C5 +) to the third outlet (C1 +), and wherein the third outlet (C1 +) is adapted to be connected to the inlet side (S1) of on the piston side) and the third inlet (C4-) is arranged to be coupled to the output side (S4, for example on the cylinder side of the cylinder) of the fourth actuator (E4). When the third configuration is modified to plug in the first outlet (C5 +), the first inlet (C6-), the second inlet (C7-), and the second outlet (C8 +), configuration 2/2 is enabled (right cylinder operation).

It should be noted that the second and third configurations can be implemented simultaneously, whereby both control means (M1, M2) activate a simultaneous function (function 2/3) of two actuators (E3 and E4), for example, simultaneous reduction and spreading of the cylinders. In addition, plugging the first outlet (C5 +), the first inlet (C6-), the second inlet (C7-) and the second outlet (C8 +) results in function 2/3 (Simultaneous cylinder reduction and expansion when both control means are active, e.g. solenoid valves are electrified) ).

For the hydraulic valve, function 1/3 is performed as follows:

When power is applied to the second control means (M2), the spindle closes the first channel outlet (C5 +), thereby closing the previous described function (function 1/1). The controlled pressure flow is then directed from the first main connection (P1) to the third outlet (K1) along the channel (K1) and then to the piston side (S1) of the cylinder, whereby oil is directed from the shaft side (S4) to the third inlet (C2-) P2). The opposite movement of the cylinder occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as the return connection.

According to one embodiment, said frame third flow circuit (VP3) can be configured as a third auxiliary flow circuit and to provide a third auxiliary function (simultaneous shrinkage and spreading of cylinders E3 and E4, function 2/3, particularly Figs. 3A, 3B), in which active.

For the hydraulic valve, function 2/3 is carried out as follows: When power is applied to both control means (M1, M2), the spindles close the first channel (between K1, C7- and C5 +) and function 1/1 is closed. The controlled pressure flow is then directed from the first main connection (P1) through the conduit (K1) to the third outlet (C1 +) and the fourth outlet (C2 +) and from there to the piston side (S1, S2) of the cylinders, a third input (C4-) and from there through a second channel (K2) to a return connection (P2). The opposite movement of the cylinders occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

Still further, according to one embodiment, said hull third flow circuit (VP3) can be configured as a fourth auxiliary flow circuit and to provide a fourth auxiliary function (Right Cylinder Operation 2/2, especially Figures 3A, 3B), wherein at least the first output (C5 +) the control means is active, thereby achieving the configuration shown in Figures 3A and 3B and the function of the fourth actuation means (E4).

In the case of the hydraulic valve, function 2/2 is carried out as follows: When power is applied to the second control means (M2), the controlled pressure flow from the first main connection (P1) is channeled through channel (K1) to the third outlet (C1 +) and then to cylinder piston side (S1) to the input (C4-) and from there through another channel (K2) to the return connection (P2). The opposite movement of the cylinders occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

Thus, to provide other additional functions (functions 3/1, 3/2, 3/3, 3/4), the frame also comprises a fourth channel (K4) arranged in the frame between the first output (C5 +) and the third output (C1 +), each fourth channel (K4). ) is adapted to be openably closed by a fourth plug (T4). Further, the housing also comprises a fifth channel (K5) arranged between the fourth outlet (C2 +) and the second main interface (P2), the fifth channel (K5) being adapted to be openably closed by a third plug (T3).

According to an embodiment of the invention, to provide a fourth, fifth and sixth flow circuit (VP4, VP5, VP6) (and respectively to enable fourth 3/1, fifth 3/2 and sixth 3/3 function), the first body output (C5 +), first input (C6- ), the second inlet (C7-) and the second outlet (C8 +) are closed, for example, by a plug (see in particular Figures 4A, 4B). Further, the fourth channel (K4) and the fifth channel (K5) of the frame are opened so that the fourth channel (K4) connects the first output (C5 +) and the third output (C1 +) inside the frame and the Fifth channel (K5) connects the fourth output (C2 +). and a second main interface (P2) within the body to each other via a second channel (K2). This is possible by removing the plugs (T4, T5) closing the channels (K4, K5).

To enable a fourth function (e.g., diagonal movement of the cylinders, function 3/1, in particular FIGS. 4A, 4B), a fourth flow circuit (VP4) is configured on the body, wherein the body (100) comprises a third outlet (P4) associated with the first main interface (P1). C1 +), a third input (C4-) and a fourth input (C3-) connected thereto via a third channel (K3) and a fourth output (C2 +) connected to a second main interface (P2) via a fifth channel (K5). In the configuration, the third outlet (C1 +) is adapted to be connected to the inlet side (S1) of the fourth actuator (E4), for example to the piston side of the cylinder) and the third inlet (C4-) to be connected to the outlet side of the fourth actuator (E4), e.g. (C3-) is adapted to be coupled to the inlet side (S3, e.g. cylinder side) of the third actuator (E3), and the fourth outlet (C2 +) is adapted to be coupled to the outlet side (S2, e.g. cylinder piston) of the third actuator.

In the case of the hydraulic valve, function 3/1 is carried out as follows: When the control means are inactive (unpowered), the controlled pressure flow is directed from the first main connection (P1) through the open channel (K4) to the third outlet (C1 +) and then to the cylinder side (S1) is directed to the third inlet (C4-) and therethrough the connecting channel (K3) to the fourth inlet (C3-) and thence to the cylinder shaft side (S3), whereby oil from the piston side (S2) is directed to the fourth outlet (C2 +) and through the return channel (K5) P2). The opposite movement of the cylinders occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

In order to enable a fifth function (e.g. left-hand cylinder operation 3/2, in particular Figures 4Ά, 4B), a fifth flow circuit (VP5) is configured on the body, wherein the body (100) comprises a first control channel (MK1) for the first control means (M1) C2 +) connection through the fifth channel (K5) to the second main connection (P2) and the third channel (K3) between the third input (C4-) and the fourth input (C3-) being adapted to be closed by said control means (M1); and wherein the channel between the first main interface (P1) and the fourth output (C2 +) is adapted to open through the first channel (K1) by said first control means (M1) and the channel between the second main interface (P2) and the fourth input (C3-) is channel (K2) by said first control means (M1). In the example, the fourth outlet (C2 +) is adapted to be coupled to the inlet side (S2, e.g. cylinder piston) of the third actuator (E3) and the fourth inlet (C3-) is adapted to be coupled to the outlet side (S3, e.g.

For the hydraulic valve, function 3/2 is carried out as follows:

When power is applied to the first control device (M1), the spindle closes the second (C7-) input (already plugged in this function), thereby closing the previous 1/1 function described. The controlled pressure flow is then directed from the first main connection (P1) to the fourth outlet (C2 +) through the first channel (K1) and from there to the cylinder piston side (S2), whereby the oil is directed from the shaft side (S3) to the fourth channel (K2). (P2). The opposite movement of the cylinders occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

To enable a sixth operation (e.g., right-hand cylinder operation 3/3, in particular Figures 4A, 4B), a sixth flow circuit (VP6) is configured on the body, wherein the body (100) then comprises a second control channel (MK2) for control means (M2). ) the connection through the first channel (K1) to the first main interface (P1) is adapted to open and the fourth channel (K4) between the third output (C1 +) and the first output (C5 +) is adapted to close and the connection to the third input (C4-) to the third channel (K3) is adapted to be closed by said second control means (M2). Further, the configuration is adapted to establish a connection between the third input (C4-) and the second main interface (P2) via a second channel (K2) by said control means (M2). In the example, the third outlet (C1 +) is adapted to be coupled to the inlet side (S1, e.g., cylinder piston side) of the fourth actuator (E4) and the third outlet (C4-) is adapted to be coupled to the outlet side (S4, e.g.

For the hydraulic valve, function 3/3 is performed as follows: When power is applied to the second control means (M2), the spindle closes the fourth channel (K4) and the first outlet (C5 +), thereby closing the previous function 1/1. Thereby, a controlled pressure flow from the first main connection (P1) is directed through the first channel (K1) to the third outlet (C1 +) and thence to the cylinder piston side (S1), whereby oil from the shaft side (S4) is directed to the third inlet (C2). P2). The opposite movement of the cylinders occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

It should be noted that the Fifth and Sixth configurations can be implemented simultaneously, whereby both control means (M1, M2) actuate the simultaneous operation (function 3/4) of the two actuating means (E3 and E4), e.g.

For the hydraulic valve, function 3/4 is performed as follows:

When power is applied to both control means (M1, M2), the spindles close the second inlet (C7-) and first outlet (C5 +), which is already plugged as such, to close function 1/1, while closing the third, fourth and fifth channels (K3, K4). , K5). Thereby, a controlled pressure flow from the first main connection (P1) to the third outlet (C1 +) and the fourth outlet (C2 +) of the first channel (K1) and from there to the piston side (S1, S2) of the cylinder is directed to the fourth inlet (S3, S4). a third input (C4-) and from there through a second channel (K2) to a return connection (P2). The opposite movement of the cylinders occurs when the control pressure flow is connected to the connection (P2), whereby the first main line (P1) acts as a return connection.

Furthermore, according to one embodiment of the invention, the housing is provided with locations or channels for safety valves / check valves, whereby when the said valves are connected to the housing, the housing is made to function as a multifunctional hydraulic valve. Such examples are shown in Figures 2A-5B. Most preferably, the first safety valve / check valve (V1) is adapted to be connected to a second outlet (C8 +) via a first safety channel (VK1) comprising the body. A second safety valve / check valve (V2) is arranged to be connected to the first outlet (C5 +) via a second safety channel (VK2) comprising the body. A third safety valve (V3) is arranged to be connected to the third outlet (C1 +) via a third safety channel (VK3) comprising the body. A fourth safety valve (V4) is arranged to be connected to the fourth outlet (C2 +) via a fourth safety channel (VK4) comprising the housing.

According to an embodiment of the invention, the housing also includes a location for a fifth safety valve / non-return valve (V5) adapted to be connected to a third inlet (C3-) connecting the fourth inlet (C3-) and the third inlet (C4-) said safety channels are further adapted to be controlled by a converging return channel (15). Such an embodiment of operating a fifth safety valve / check valve (V5) is shown in Figures 2A-4B.

Further, Figures 5A-5B illustrate another exemplary valve body in accordance with a preferred embodiment of the invention, wherein the body also includes a seat for a sixth safety valve / check valve (V6) most preferably adapted to be connected to a fourth inlet (C3) through. In said embodiment, the housing may also include a seat for a seventh safety valve M11 (V7), preferably adapted to be connected to a third input (C4-) via a seventh safety channel (VK7). In an embodiment, the body most preferably comprises a second connecting channel (YK2) adapted to connect said sixth and seventh safety valves / check valves (V6, V7) to each other and further connect them to a converging return channel (15) comprising the body.

According to one example, said safety channels are adapted to discharge the pressure accumulator (not shown), if necessary, and further to discharge the pressure accumulator through said fifth (V5) to a third channel (K3) between the fourth inlet (C3) and the third inlet (C4). .

According to one embodiment, the pressure is adapted to be discharged through the safety channel 6 of the sixth safety channel (VK6) and / or the seventh safety channel (VK7) and the corresponding check valves / safety valves (V6, V7) to the fourth inlet (C3-) and / or the third inlet (C4-).

Further, according to one embodiment, the frame also comprises an eight guard channel (VK) for connecting the first guard channel (VK1) and the second guard channel (VK2) to a converging return channel (15). The return duct and its associated safety / non-return valves (in the case of a hydraulic valve where the body comprises suitable safety / non-return valves) are adapted to relieve pressure, if necessary, to the associated accumulator or other external arrangement such as a tank line or separate from the converging return channel (15) through the first safety channel (VK1) and the second safety channel (VK2) and further through, for example, V1 and V2 safety valve / check valve (check valves in valve cartridges) to second outlet (C8 +) and / or first outlet (C5 +). Thus, for example, a part of the pressure stroke on valve V1 goes immediately to the opposite side, and for example the stroke on the second outlet (C8 +) (note that C8 + is connected by a second channel (K2) is connected to the first inlet (C6-) part goes through valve V1 to the accumulator and part goes through the combined duct between valves V1 and V2 and further through the V2 safety valve / check valve to the first outlet (C5 +) (note that C5 + is connected via the first channel (K1) to the second inlet (C7-), which is adapted to release the pressure there, which one is more favorable or lower) and thus also to the second inlet (C7-) via a first channel (K1) arranged between them (C5 +, C7-). Thus, in the example, a first connecting channel (YK1) is provided on the body to connect the channels of the first safety valve / check valve (V1) and the second safety valve / check valve (V2).

It is to be noted that the safety lane / counter lane may be implemented with either one lane / counter lane or two separate functional components, the first being the safety valve and the second the non-return valve.

The invention also relates to a hydraulic valve which is achieved by adding suitable valves and control means to the hydraulic valve body of the invention. Most preferably, the hydraulic valve according to the invention comprises a housing according to one of the above embodiments and a first and second control means (M1, M2) arranged separately from one another and arranged on the first and second control channels (MK1, MK2) associated with the first, second and third channels (K1, K2, K3). ). Preferably, said control means comprises a movable spindle arranged on a control channel (MK1, MK2), which spindle is arranged to provide at least some of the aforementioned frame channel configurations. According to one example, the control means is a solenoid valve (M1, M2), but it can also be a pneumatically, hydraulically or mechanically controlled valve.

In particular, according to one embodiment, check valves (V1, V2, V3, V4, V5, V6, V7) are provided inside the hydraulic valve body for returning fluid through the check valve to the piston / shaft side of the cylinder connected to the hydraulic valve, , arranged to release pressure to the first free inlet (C1 +, C2 +, C3-, C4-, also C5 +, C8 +; via K1 or K2 to C7- and C6-), wherein the pressure is advantageous for receiving the pressure caused by the impact. Note that the valves (V3, V4) can also be replaced with a safety / non-return valve, whereby they are also adapted to release pressure to the inputs (C1 +, C2 +), if necessary.

Figure 6 illustrates duct assemblies of an exemplary valve body in accordance with a preferred embodiment of the invention. The channels shown (K1-K5, MK1, MK2) are explained in more detail elsewhere in this document.

Only some embodiments of the solution according to the invention are shown above. The principle of the invention can, of course, be modified within the scope of the claims, for example with respect to details of implementation and areas of use. In particular, it should be noted that said frame inlet connections may of course be made independently of the frame to any actuator or actuator output, and the foregoing are merely examples. Further, the inputs and channels of the body, for example the return channel (15), are shown in the figures at certain locations, but it is to be understood that they may naturally be located elsewhere on the body and are not limited by the invention and claims.

Claims (20)

A frame (100) for a hydraulic valve comprising two main terminals (P1, P2) for conveying the pressurized hydraulic fluid to said frame system's duct system and further away from the duct system, and wherein said frame comprises four output terminals (C1 +, C2 +, C5 +, C8 +) for controlling the hydraulic fluid from the frame's channel system to functional means (E1-E4) and four corresponding input terminals (C3, C4, C6, C7) to direct the hydraulic fluid from the functional means back to the channel system, characterized in that the frame is arranged to be configured at least to six different flow circuits such that - at least between the first output (C5 +) and the second input (C7-), a first channel (K1) has been arranged in the frame, - at least between the second input (C6-) and the second output (C8 +) ) a second channel (K2) has been arranged in the frame, - at least between the third input (C4-) and the fourth input (C3-), a third channel (K3) has been arranged in the frame, and - the frame also comprises a fourth channel (K4) arranged between the first output (C5 +) and the third output (C1 +), which fourth channel (K4) is arranged to be openably closed (T4), and the frame also includes a one between the fourth the output (C2 +) and the second main connection (P2) in the frame arranged fifth channel (K5), which fifth channel (K5) is arranged to be openably closed (T3), and in which the frame is further arranged in connection with said channels (K1, K2) , K3) control channels (MK1, MK2) for two control means (M1, M2) to be controlled externally, independently of one another, so that the channel of the first control means extends through the channels (K1, K2, K3) and is arranged in conjunction with two output terminals (C2 +, C8 +) and two input terminals (C3-, C7-), o the second controller means extend through the channels (K1, K2, K3) and are provided in conjunction with two output terminals (C1 +, C5 +) and two input terminals (C4-, C6-), wherein said frame is arranged to enable the accomplishment of at least six different functions with said functional means. A frame according to claim 1, in which the first flow circuit (VP1) for enabling the first function comprises a first channel (K1) arranged between the first output (C5 +) and second input (C7-) and one between the first input (C6- ) and the second output (C8 +) is provided with a second channel (K2), so that the first output (C5 +) is arranged to be coupled to the first side (S5) of the first functional member (E1) and the first input (C6-) is arranged to is coupled on the second side (S6) of the first functional means (E1), and the second output (C8 +) is arranged to be coupled on the first side (S8) of the second functional means (E2) and the second input (C7-) is arranged to is coupled on the other side (S7) by the second functional means (E2). The frame of claim 2, wherein the main terminal (P1, P2) is arranged to be coupled to said first channel (K1) and second input (C7-), and wherein the second main terminal (P1, P2) is arranged. ) is arranged to be coupled to said between second input (C6-) and second output (C8 +) arranged second channel (K2). Frame according to any preceding claim, in which the first output (C5 +), first input (C6-), second input (C7-) and second output (C8 +) are arranged to be openably closed. The frame of any preceding claim, wherein the second flow circuit to enable the second function comprises a fourth output (C2 +) and a fourth input (C3-), and an application for closing it with the second input of the first controller (C7-) associated the first channel (K1) and further to open it to the fourth output (C2 +), and in which the fourth output (C2 +) is arranged to be coupled to the first side (S2) of the third functional member (E3) and the fourth input (C3-) is arranged to be coupled to the second side (S6) of the third functional member (E3). Frame according to claim 5, in which the main connection (P1, P2) is arranged to be connected to said fourth output (C2 +) controlled by the first control means (M1), and in which a second main connection (P1, P2) is arranged to be connected. to said fourth input (C3-). The frame of any preceding claim, wherein the third flow circuit for enabling the third function comprises a third output (C1 +) and a third input (C4-), and an application for closing it with the first output of the second control means. (C5 +) associated channel (K1) and further that it opens to the third output (C1 +), and in which the third output (C1 +) is arranged to be connected to the input side (S1) of the fourth function means (E3) and the third input (C4-) is arranged to be coupled to the output side (S4) of the fourth functional member (E3). The frame of claim 7, wherein the main terminal (P1, P2) is arranged to be connected to said third output (C1 +) controlled by the second control means, and wherein the second main terminal (P1, P2) is arranged to be connected to said third input. (C4). A frame according to any preceding claim, wherein the frame also comprises a fourth channel (K4) arranged between the first output (C5 +) and the third output (C1 +), the fourth channel (K4) being arranged to be openably closed with a plug ( T4), which is arranged in the frame under the openly closed plug (T1) and wherein the frame also comprises a fifth channel (K5) arranged between the fourth output (C2 +) and the second main connection (P2), which is arranged in the frame (K5) to be closed openly (T3) with a plug (T3), which is arranged in the frame below the plug (T2) which is openably closed. The frame of claim 9, wherein the first output (C5 +), first input (C6-), second input (C7-), and second output (C8 +) are closed and in which the fourth channel (K4) and fifth channel (K4) are also closed. K5) are opened and connect the first output (C5 +) and the third output (C1 +) with each other within the frame and join the fourth output (C2 +) and the second main connection (P2) with each other within the frame. The frame of claim 10, wherein the fourth flow circuit to enable the fourth function comprises the third output (C1 +) associated with the fourth channel (K4) with the main terminal (P1), the third input (C4-) and the fourth input (C3-) associated with the channel (K3) and the fourth output (C2 +) connected by the fifth channel (K5) with the second output (C2 +), in which the third output (C1 +) is arranged to be connected to the input side (S1) by the fourth function means (E4) and a third input (C4-) are arranged to be connected to the output side (S4) of the fourth function means (E4), and the fourth input (C3-) is arranged to be connected to the input side (S3) of the third the function means (E3) and the fourth output (C2 +) are arranged to be coupled to the output side (S2) of the third function means (E3). The frame of claim 10, wherein the fifth flow circuit to enable the fifth function comprises the first control channel (MK1) to the first control means (M1), so that the fourth output (C2 +) connection (K5) with the second main terminal (P2) and the third channel (K3) existing between the third input (C4-) and the fourth input (C3-) is arranged to be closed by said control means (M1); and wherein the channel between the first main connection (P1) and the fourth output (C2 +) (first channel (K1)) and the channel between the second main connection (P2) and the fourth input (C3-) is arranged to open (second channel (K2)) ) by said control means (M1); wherein the fourth output (C2 +) is arranged to be coupled to the input side (S2) of the third functional member (E3) and the fourth input (C3-) is arranged to be coupled to the output side (S3) of the third functional member (E3). The frame of claim 10 or 12, wherein the sixth flow circuit for enabling the sixth function comprises the control channel (MK2) of the control means (M2) such that the connection of the third output (C1 +) to the first main terminal (P1) through the first channel (K1) is arranged to open and the fourth channel (K4) between the third output (C1 +) and the first output (C5 +) is arranged to close and the connection of the third input (C4-) to the third channel (K3) is arranged to close, and in which connection is used to form between the third input (C4) and the second main terminal (P2) through the second channel (K2) by said control means (M2); and in which a third output (C1 +) is arranged to be coupled to the input side (S1) of the fourth function means (E4) and the third input (C4-) is arranged to be coupled to the output side (S4) of the fourth function means (E4). A frame according to any preceding claim, in which channels for safety valves and / or contrast valves are arranged in the frame, so that the first safety valve and / or contrast valve (V1) is arranged to be connected in connection with the second output (C8 +) through the first safety channel (VK1), a second safety valve / contrast valve (V2) is threaded to be connected in connection with the first output (C5 +) through the second safety channel (VK2) frame, a third safety valve (V3) is arranged to be connected in connection with the third the output (C1 +) through a third safety channel (VK3) comprises the frame, a fourth safety valve (V4) is arranged to be connected in connection with the fourth output (C2 +) through a fourth safety channel (VK4), and includes a fifth safety channel. valve / contrast valve (V5) is arranged to be connected to a third channel (K3) joining the fourth input (C3-) and the third input (C4-) through a fifth safety channel (VK5) includes the frame, and / or a sixth safety valve / contrast valve (V6) is arranged to be connected in connection with the fourth input (C3-) through a sixth safety channel (VK6) and a seventh safety valve / contrast valve ( V7) is arranged to be connected in connection with the third input (C4-) through a seventh safety channel (VK7), and said safety channels are further arranged to be directed to a coincident return channel (15). A frame according to claim 14, wherein said safety channels are arranged to discharge the pressure in a pressure accumulator in connection with the frame and further to discharge the pressure back from the pressure accumulator through said fifth constraint valve (V5) to the third channel (K3) between the fourth input (C3). -) and the third input (C4-). The frame of claim 14 or 15, wherein the frame comprises the seventh safety channel (VK7) for joining the first safety channel (VK1) and the second safety channel (VK2) to a coincident return channel (15), which is arranged to discharge the pressure in the a pressure accumulator in conjunction with the frame or other external arrangement and further directing the pressure back from the coincident return channel (15) through the first safety channel (VK1) and the second safety channel (VK2) to the second output (C8 +) and / or the first output (C5 +) . A frame according to any one of claims 14-16, in which the frame comprises a first connecting channel (YK1) arranged to join the channels of the first safety valve / contrast valve (V1) and the second safety valve / contrast valve (V2), and / or a second connecting channel (YK2) arranged to connect the sixth and seventh safety valve / contrast valve (V6, V7) with each other. Hydraulic valve, characterized in that it comprises a frame according to any one of the preceding claims and in connection with first and second control ducts (MK1, MK2) arranged in first and second control ducts (MK1, MK2) control means (M1, M2) to be controlled externally independently of one another. A valve according to claim 18, wherein said control means comprises a movable spindle arranged in the control channel (MK1, MK2), said spindle being arranged to provide at least part of the configurations for said channel system of the frame. The valve of claim 19, wherein said control means is a solenoid valve (M1, M2), or a pneumatically, hydraulically or mechanically controllable valve.