CN205446225U - Actuating mechanism adjusting device and engineering machine tool - Google Patents
Actuating mechanism adjusting device and engineering machine tool Download PDFInfo
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- CN205446225U CN205446225U CN201521100028.9U CN201521100028U CN205446225U CN 205446225 U CN205446225 U CN 205446225U CN 201521100028 U CN201521100028 U CN 201521100028U CN 205446225 U CN205446225 U CN 205446225U
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Abstract
The utility model relates to the technical field of construction machinery, in particular to actuating mechanism adjusting device and engineering machine tool. The utility model provides an actuating mechanism adjusting device, its include the actuating mechanism connecting portion be connected with an actuating mechanism, with the 2nd actuating mechanism connecting portion and liquid accuse subassembly that the 2nd actuating mechanism is connected, wherein, the independent motion of actuating mechanism connecting portion and the 2nd actuating mechanism connecting portion adversive movement, syntropy motion and every actuating mechanism connecting portion can be controlled to liquid accuse subassembly. Therefore, the utility model discloses an actuating mechanism adjusting device can adjust two position relation between the actuating mechanism through controlling four kinds of modes such as two actuating mechanism syntropy motions, two actuating mechanism adversive movement and the independent motion of every actuating mechanism to make actuating mechanism adjusting device's function more perfect, the regulative mode is more convenient, and the operating efficiency is higher.
Description
Technical field
This utility model relates to technical field of engineering machinery, particularly to a kind of actuator adjusting means and engineering machinery.
Background technology
Many engineering machinery have two actuators needing collaborative work, owing to actual job situation is more complicated, usually require that the position relationship between two actuators can be adjusted according to actual condition, therefore, existing engineering machinery is typically provided with the actuator adjusting means of position relationship between two actuators of regulation.However, it is found by the inventors that, existing actuator adjusting means, its regulative mode is the most single, and flexible adjustment is poor, and working performance is relatively low.
As a example by the fork truck being widely used in storage and logistics field, it has left pallet fork and two actuators of right fork, when transporting goods, typically require between left pallet fork and right fork and regulate position relationship therebetween by four kinds of regulative modes such as double fork roll adjustments, double fork sidesway, left fork single action and right fork single actions, wherein, double fork roll adjustments refer to that two pallet forks move, so that distance two pallet fork between is increased or decreased simultaneously round about；Double fork sidesways refer to that the distance between two pallet forks keeps constant, but two pallet forks are simultaneously mobile to side (left side or right side)；Left fork single action refers to that left pallet fork the most to the left or move, right fork invariant position by right side；Right fork single action refers to that right fork the most to the left or move, left pallet fork invariant position by right side.Based on these four regulative mode, fork truck can regulate the position relationship between two pallet forks more easily, is allowed to adapt with needs actual job situation, thus improves handling efficiency, it is ensured that carrying safety.
At present, fork truck, especially large-tonnage fork truck, hydraulic system is generally used to regulate the position relationship between two pallet forks, but existing between two pallet forks of regulation the hydraulic system of position relationship be merely able to realize in above-mentioned four kinds of regulative modes several, and above-mentioned four kind regulative modes can not be completely covered, it is the most convenient in use process that this results in fork truck, limits the further raising of working performance.
Fig. 1 shows a kind of hydraulic system of position relationship between two pallet forks of regulation of the prior art, this hydraulic system includes having P1 hydraulic fluid port and the first reversal valve of T1 hydraulic fluid port, have P2 hydraulic fluid port and the second reversal valve of T2 hydraulic fluid port, an electromagnetic valve 1 ' and have the left fork oil cylinder of A1 ' chamber and B1 ' chamber and have the right fork oil cylinder of A2 ' chamber and B2 ' chamber, and its operation principle is:
First reversal valve action, position choke-out in second reversal valve, and electromagnetic valve 1 ' must not electricity: P1 (T1) hydraulic fluid port oil-feed, fluid entrance A1 ' (A2 ') chamber, now position choke-out in the second reversal valve, i.e. P2 hydraulic fluid port and T2 hydraulic fluid port are turned off, therefore B1 ' chamber and B2 ' chamber UNICOM, form series connection, fluid in A2 ' (A1 ') chamber is discharged from T1 (P1) hydraulic fluid port, therefore, the lever of left fork oil cylinder and the lever (left side) the most to the right of right fork oil cylinder are mobile, it is achieved double fork sidesways；
Second reversal valve action, position choke-out in first reversal valve, and electromagnetic valve 1 ' must not electricity: P2 (T2) hydraulic fluid port oil-feed, fluid entrance A1 ' (B1 ') chamber, now position choke-out in the first reversal valve, i.e. P1 hydraulic fluid port and T1 hydraulic fluid port are turned off, and the lever of the rightest fork oil cylinder cannot action, and the cylinder rod single movement of the most left fork oil cylinder, it is achieved left fork single action；
Second reversal valve action, position choke-out in first reversal valve, and electromagnetic valve 1 ' obtains electric: P2 (T2) hydraulic fluid port oil-feed, fluid can enter A1 ' (B1 ') chamber and A2 ' (B2 ') chamber, now position choke-out in the first reversal valve, i.e. P1 hydraulic fluid port and T1 hydraulic fluid port are turned off, therefore, fluid in B1 ' (A1 ') chamber and B2 ' (A2 ') chamber can be discharged from T2 (P2), the lever of left fork oil cylinder and the lever of right fork oil cylinder counteragent simultaneously, it is achieved double fork roll adjustments.
Visible, the hydraulic system shown in Fig. 1, it is only capable of realizing double fork sidesway, left fork single action and double fork roll adjustment these three regulative mode, and cannot realize the regulative mode of right fork single action, and flexible adjustment is poor, and working performance is relatively low.
Utility model content
One to be solved in the utility model technical problem is that: existing actuator adjusting means, flexible adjustment is poor, and working performance is relatively low.
In order to solve above-mentioned technical problem, this utility model first aspect provides a kind of actuator adjusting means for engineering machinery, actuator adjusting means includes the first drive mechanism, the second drive mechanism and hydraulic control assembly, wherein, first drive mechanism includes the first actuator connecting portion, and the first actuator connecting portion is used for being connected with the first actuator of engineering machinery so that the first actuator can be along with the first actuator connecting portion motion；Second drive mechanism includes the second actuator connecting portion, and the second actuator connecting portion is used for being connected with the second actuator of engineering machinery so that the second actuator can be along with the second actuator connecting portion motion；Hydraulic control assembly can control the first actuator connecting portion and the second actuator connecting portion moves in the following manner:
First actuator connecting portion and the second actuator connecting portion adverse movement, to regulate the distance between the first actuator and the second actuator；
First actuator connecting portion and the second actuator connecting portion move in the same direction, so that the first actuator and the second actuator are moved to the same side；
Second actuator connecting portion is static, and the first actuator connecting portion motion, to realize the independently moving of the first actuator；With
First actuator connecting portion is static, and the first actuator connecting portion motion, to realize the independently moving of the second actuator.
Alternatively, first drive mechanism includes the first chamber and the second chamber, when the first chamber oil-feed, during the second chamber oil extraction, the first actuator connecting portion drives the first actuator to move to first direction, and when the second chamber oil-feed, during the first chamber oil extraction, the first actuator connecting portion drives the first actuator to the second direction motion contrary with first direction；Second drive mechanism includes the 3rd chamber and the 4th chamber, when the 3rd chamber oil-feed, during the 4th chamber oil extraction, the second actuator connecting portion drives the second actuator to move to second direction, and when the 4th chamber oil-feed, during the 3rd chamber oil extraction, the second actuator connecting portion drives the second actuator to move to first direction.
Alternatively, hydraulic control assembly includes that the oil circuit with the first external hydraulic fluid port and the second external hydraulic fluid port controls assembly, first external hydraulic fluid port is for being connected with in oil pump and fuel tank, second external hydraulic fluid port is for being connected with another in oil pump and fuel tank, and oil circuit control assembly can control the first chamber, the second chamber, realize following oil circuit connection status between the 3rd chamber and the 4th chamber and the first external hydraulic fluid port and the second external hydraulic fluid port:
First chamber and the 3rd chamber all connect with the first external hydraulic fluid port, and the second chamber and the 4th chamber all connect with the second external hydraulic fluid port, so that the first actuator connecting portion and the second actuator connecting portion adverse movement；
Second chamber and the connection of the first external hydraulic fluid port, the first chamber and the 3rd chamber, and the 4th chamber and the second external hydraulic fluid port connect, so that the first actuator connecting portion and the second actuator connecting portion move in the same direction；
Second chamber and the connection of the first external hydraulic fluid port, the first chamber and the second external hydraulic fluid port connect, the 4th chamber cut-off so that the second actuator connecting portion is static and the first actuator connecting portion moves；With
3rd chamber and the connection of the first external hydraulic fluid port, the 4th chamber and the second external hydraulic fluid port connect, the second chamber cut-off so that the first actuator connecting portion is static and the second actuator connecting portion moves.
Alternatively, oil circuit control assembly includes that the first controlling organization, the first controlling organization can control the first chamber and the 3rd chamber all connects with the first external hydraulic fluid port and the cut-off of the second chamber.
Alternatively, the first controlling organization can also control the first chamber and the connection of the second external hydraulic fluid port and the second chamber and the connection of the first external hydraulic fluid port.
Alternatively, first controlling organization includes the first reversal valve, first reversal valve includes the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, first hydraulic fluid port of the first reversal valve and the connection of the first external hydraulic fluid port, second hydraulic fluid port of the first reversal valve and the 3rd chamber and the second hydraulic fluid port of the first reversal valve and the 3rd chamber all can be connected to break-make with the second external hydraulic fluid port, 3rd hydraulic fluid port of the first reversal valve and the second chamber, the 4th hydraulic fluid port of the first reversal valve and the first chamber；First reversal valve has the first working position and the second working position, when the first reversal valve is in the first working position, first hydraulic fluid port of the first reversal valve and the second hydraulic fluid port and the 4th hydraulic fluid port connect and the cut-off of the 3rd hydraulic fluid port, when the first reversal valve is in the second working position, the first hydraulic fluid port of the first reversal valve and the connection of the 3rd hydraulic fluid port and the second hydraulic fluid port and the connection of the 4th hydraulic fluid port.
Alternatively, oil circuit control assembly also includes that the second controlling organization, the second controlling organization can control the break-make between the second hydraulic fluid port and the 3rd chamber and the second external hydraulic fluid port of the first reversal valve.
Alternatively, second controlling organization includes the second reversal valve, second reversal valve has the first hydraulic fluid port, the second hydraulic fluid port and the 3rd hydraulic fluid port, first hydraulic fluid port of the second reversal valve and the connection of the second external hydraulic fluid port, second hydraulic fluid port of the second reversal valve and the second chamber and the 4th chamber all can connect on break-make ground, the 3rd hydraulic fluid port of the second reversal valve and the second hydraulic fluid port of the first reversal valve and the 3rd chamber；Second reversal valve has the first working position and the second working position, when the second reversal valve is in the first working position, the first hydraulic fluid port of the second reversal valve ends with the connection of the second hydraulic fluid port and the 3rd hydraulic fluid port, the first hydraulic fluid port of the second reversal valve and the connection of the 3rd hydraulic fluid port and the cut-off of the second hydraulic fluid port when the second reversal valve is in the second working position.
Alternatively, oil circuit control assembly also includes that the 3rd controlling organization, the 3rd controlling organization can control the break-make between the second chamber and the second hydraulic fluid port of the second reversal valve and control the break-make between the 4th chamber and the second hydraulic fluid port of the second reversal valve.
Alternatively, 3rd controlling organization includes the 3rd reversal valve, 3rd reversal valve has the first hydraulic fluid port, the second hydraulic fluid port and the 3rd hydraulic fluid port, first hydraulic fluid port of the 3rd reversal valve and the second hydraulic fluid port connection of the second reversal valve, second hydraulic fluid port of the 3rd reversal valve and the second chamber and the 4th chamber all can connect on break-make ground, the 3rd hydraulic fluid port of the 3rd reversal valve and the 4th chamber；3rd reversal valve has the first working position and the second working position, when the 3rd reversal valve is in the first working position, first hydraulic fluid port of the 3rd reversal valve and the connection of the second hydraulic fluid port and the 3rd hydraulic fluid port end, when the 3rd reversal valve is in the second working position, the first hydraulic fluid port of the 3rd reversal valve and the connection of the 3rd hydraulic fluid port and the cut-off of the second hydraulic fluid port.
Alternatively, the 3rd controlling organization also includes that break-make controlling organization, break-make controlling organization can control the break-make between the second hydraulic fluid port of the second chamber and the 3rd reversal valve and control the break-make between the 4th chamber and the second hydraulic fluid port of the 3rd reversal valve.
Alternatively, break-make controlling organization includes bidirectional hydraulic lock, the outlet of the first check valve of bidirectional hydraulic lock and the second chamber, the import of the first check valve of bidirectional hydraulic lock connects with the second hydraulic fluid port of the 3rd reversal valve, the outlet of the second check valve of bidirectional hydraulic lock and the 4th chamber, the import of the second check valve of bidirectional hydraulic lock connects with the second hydraulic fluid port of the 3rd reversal valve.
Alternatively, the 3rd controlling organization also includes synchronizing control, and synchronizing control can control the synchronization break-make between the 3rd chamber and the 4th chamber and the second hydraulic fluid port of the 3rd reversal valve.
Alternatively, synchronizing control includes flow divider-combiner, first shunting hydraulic fluid port of flow divider-combiner and the inlet communication of the first check valve of bidirectional hydraulic lock, second shunting hydraulic fluid port of flow divider-combiner and the inlet communication of the second check valve of bidirectional hydraulic lock, the afflux hydraulic fluid port of flow divider-combiner and the second hydraulic fluid port connection of the 3rd reversal valve.
Alternatively, hydraulic control assembly also includes external switching mechanism, external switching mechanism can control the first external hydraulic fluid port and the second external hydraulic fluid port switches between the first duty and the second duty, when being in the first duty, the first external hydraulic fluid port connects with oil pump and the second external hydraulic fluid port connects with fuel tank, and when being in the second duty, the first external hydraulic fluid port connects with fuel tank and the second external hydraulic fluid port connects with oil pump.
This utility model second aspect additionally provides a kind of engineering machinery, it includes the first actuator, the second actuator and any of the above actuator adjusting means, first actuator connecting portion of actuator adjusting means and the first actuator connect, and the second actuator connecting portion of actuator adjusting means and the second actuator connect.
Alternatively, engineering machinery is fork truck, and the first actuator is left pallet fork, and the second actuator is right fork.
Actuator adjusting means of the present utility model, can by controlling two actuators and move in the same direction, four kinds of modes such as two actuator adverse movements and each actuator independently moving regulate the position relationship between two actuators, so that the function of actuator adjusting means is more perfect, regulative mode is more flexible and convenient, and working performance is higher.
By being described in detail exemplary embodiment of the present utility model referring to the drawings, further feature of the present utility model and advantage thereof will be made apparent from.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 illustrates the hydraulic circuit of a kind of fork regulating device of the prior art.
Fig. 2 illustrates the hydraulic circuit of the actuator adjusting means of this utility model one embodiment.
In figure:
1, the first reversal valve；2, the second reversal valve；3, the 3rd reversal valve；41, bidirectional hydraulic lock；42, flow divider-combiner；5, the 4th reversal valve；6, the first oil cylinder；7, the second oil cylinder.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Description only actually at least one exemplary embodiment is illustrative below, never as to this utility model and application thereof or any restriction of use.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not carrying out creative work premise, broadly fall into the scope of this utility model protection.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but in the appropriate case, technology, method and apparatus should be considered to authorize a part for description.
In description of the present utility model, it will be appreciated that, the noun of locality is as " front, after, on, under, left, right ", " laterally, vertically, vertically, level " and " top, the end " etc. indicated orientation or position relationship be normally based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, in the case of illustrating on the contrary, these nouns of locality do not indicate that and imply that the device of indication or element must have specific orientation or with specific azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain；The noun of locality " inside and outside " refers to inside and outside the profile relative to each parts itself.
In description of the present utility model; it will be appreciated that; the word such as " first ", " second " is used to limit parts; it is intended merely to facilitate and corresponding parts are distinguished; as there is no Stated otherwise; above-mentioned word does not has particular meaning, therefore it is not intended that restriction to this utility model protection domain.
Fig. 2 shows the hydraulic schematic diagram of the actuator adjusting means of this utility model one embodiment.With reference to Fig. 2, actuator adjusting means for engineering machinery provided by the utility model, including the first drive mechanism, the second drive mechanism and hydraulic control assembly, wherein, first drive mechanism includes the first actuator connecting portion, and the first actuator connecting portion is used for being connected with the first actuator of engineering machinery so that the first actuator can be along with the first actuator connecting portion motion；Second drive mechanism includes the second actuator connecting portion, and the second actuator connecting portion is used for being connected with the second actuator of engineering machinery so that the second actuator can be along with the second actuator connecting portion motion；Further, hydraulic control assembly can control the first actuator connecting portion and the second actuator connecting portion moves in the following manner:
First actuator connecting portion and the second actuator connecting portion adverse movement, to regulate the distance between the first actuator and the second actuator；
First actuator connecting portion and the second actuator connecting portion move in the same direction, so that the first actuator and the second actuator are moved to the same side；
Second actuator connecting portion is static, and the first actuator connecting portion motion, to realize the independently moving of the first actuator；With
First actuator connecting portion is static, and the first actuator connecting portion motion, to realize the independently moving of the second actuator.
Visible, actuator adjusting means of the present utility model, can by controlling two actuators and move in the same direction, four kinds of modes such as two actuator adverse movements and each actuator independently moving regulate the position relationship between two actuators, so that the function of actuator adjusting means is more perfect, regulative mode is more flexible and convenient, and working performance is higher.
As this utility model the first drive mechanism and a kind of embodiment of the second drive mechanism, first drive mechanism includes the first chamber A1 and the second chamber B1, when the first chamber A1 oil-feed, during the second chamber B1 oil extraction, the first actuator connecting portion drives the first actuator to move to first direction, and when the second chamber B1 oil-feed, during the first chamber A1 oil extraction, the first actuator connecting portion drives the first actuator to the second direction motion contrary with first direction；Second drive mechanism includes the 3rd chamber A2 and the 4th chamber B2, when the 3rd chamber A2 oil-feed, during the 4th chamber B2 oil extraction, the second actuator connecting portion drives the second actuator to move to second direction, and when the 4th chamber B2 oil-feed, during the 3rd chamber A2 oil extraction, the second actuator connecting portion drives the second actuator to move to first direction.
The first drive mechanism based on this embodiment and the second drive mechanism, hydraulic control assembly of the present utility model can include that the oil circuit with the first external hydraulic fluid port C1 and the second external hydraulic fluid port C2 controls assembly, first external hydraulic fluid port C1 is for being connected with in oil pump and fuel tank, second external hydraulic fluid port C2 is for being connected with another in oil pump and fuel tank, oil circuit controls assembly can control to realize between the first chamber A1 and the second chamber B1 and the 3rd chamber A2 of the second drive mechanism and the 4th chamber B2 and the first external hydraulic fluid port C1 and the second external hydraulic fluid port C2 of the first drive mechanism following oil circuit connection status:
First chamber A1 and the 3rd chamber A2 all connects with the first external hydraulic fluid port C1, and the second chamber B1 and the 4th chamber B2 all connects with the second external hydraulic fluid port C2, so that the first actuator connecting portion and the second actuator connecting portion adverse movement；
Second chamber B1 and the first external hydraulic fluid port C1 connection, the first chamber A1 and the 3rd chamber A2 connection, and the 4th chamber B2 and the second external hydraulic fluid port C2 connection, so that the first actuator connecting portion and the second actuator connecting portion move in the same direction；
Second chamber B1 and the first external hydraulic fluid port C1 connection, the first chamber A1 and the second external hydraulic fluid port C2 connect, the 4th chamber B2 cut-off so that the second actuator connecting portion is static and the first actuator connecting portion moves；
3rd chamber A2 and the first external hydraulic fluid port C1 connection, the 4th chamber B2 and the second external hydraulic fluid port C2 connect, the second chamber B1 cut-off so that the first actuator connecting portion is static and the second actuator connecting portion moves.
In order to control the annexation between the first external hydraulic fluid port C1 and the second external hydraulic fluid port C2 and oil pump and mailbox, change oil circuit and control the oil-feed direction of assembly, hydraulic control assembly of the present utility model can also include external switching mechanism, this external switching mechanism switches between the first duty and the second duty for controlling the first external hydraulic fluid port C1 and the second external hydraulic fluid port C2, when being in the first duty, the first external hydraulic fluid port C1 connects with oil pump and the second external hydraulic fluid port C2 connects with fuel tank, and the first external hydraulic fluid port C1 connects with fuel tank and the second external hydraulic fluid port C2 connects with oil pump when being in the second duty.So when oil circuit control assembly control the first chamber A1, the second chamber B1, the 3rd chamber A2, the 4th chamber B2 and the first external hydraulic fluid port C1 and the second external hydraulic fluid port C2 be in aforementioned a certain connection status time, change oil circuit by external switching mechanism and control the oil-feed direction of assembly, be i.e. capable of the actuator change direction of motion that correspondence is kept in motion.Visible, control coordinating of assembly and external switching mechanism by oil circuit, this utility model be capable of two two-way adverse movements of actuator, two actuators two-way move in the same direction, the independent bidirectional-movement of the first actuator and the independent bidirectional-movement of the second actuator.
Below in conjunction with the embodiment shown in Fig. 2, this utility model is described further.For convenience, illustrating, namely the first actuator is left pallet fork as a example by the position relationship that the actuator adjusting means of this embodiment is used for regulating the left pallet fork of fork truck and right fork, the second actuator is right fork.
As in figure 2 it is shown, in this embodiment, actuator adjusting means includes that the first drive mechanism, the second drive mechanism, oil circuit control assembly and external switching mechanism.
Wherein, first drive mechanism includes the first oil cylinder 6, the cylinder rod of this first oil cylinder 6 is used as the first actuator connecting portion, the rodless cavity of this first oil cylinder 6 is used as the first chamber A1, the rod chamber of this first oil cylinder 6 is used as the second chamber B1, wherein, the cylinder rod of the first oil cylinder 6 is for being connected with left pallet fork, so, when the first chamber A1 oil-feed, during the second chamber B1 oil extraction, the cylinder rod of the first oil cylinder 6 drives left pallet fork to move (the most i.e. moving right) to first direction, and when the second chamber B1 oil-feed, during the first chamber A1 oil extraction, the cylinder rod of the first oil cylinder 6 drives left pallet fork to second direction motion (the most i.e. to left movement) contrary with first direction.
Second drive mechanism includes the second chamber 7, the cylinder rod of this second oil cylinder 7 is used as the second actuator connecting portion, the rodless cavity of this second oil cylinder 7 is used as the 3rd chamber A2, the rod chamber of this second oil cylinder 7 is used as the 4th chamber B2, wherein, the cylinder rod of the second oil cylinder 7 is for being connected with right fork, so, when the 3rd chamber A2 oil-feed, during the 4th chamber B2 oil extraction, the cylinder rod of the second oil cylinder 7 drives left pallet fork to move (the most i.e. to left movement) to second direction, and when the 4th chamber B2 oil-feed, during the 3rd chamber A2 oil extraction, the cylinder rod of the second oil cylinder 7 drives left pallet fork to move (the most i.e. moving right) to first direction.
First chamber A1, the second chamber B1, the 3rd chamber A2 and the 4th chamber B2 control assembly by oil circuit and external switching mechanism is connected with oil pump and fuel tank.
Wherein, oil circuit control assembly includes the first external hydraulic fluid port C1, the second external hydraulic fluid port C2, the first controlling organization, the second controlling organization and the 3rd controlling organization.
As shown in Figure 2, first controlling organization includes the first reversal valve 1, this first reversal valve 1 can not only control the first chamber A1 and the 3rd chamber A2 and all connect with the first external hydraulic fluid port C1 and the second chamber B1 cut-off, and can control the first chamber A1 and the second external hydraulic fluid port C2 and connect and the second chamber B1 and the first external hydraulic fluid port C1 connection.As shown in Figure 2, first reversal valve 1 includes the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, first hydraulic fluid port of the first reversal valve 1 and the first external hydraulic fluid port C1 connection, second hydraulic fluid port of the first reversal valve 1 all can be connected to break-make with the second external hydraulic fluid port C2 with the 3rd chamber A2 connection and the second hydraulic fluid port of this first reversal valve 1 and the 3rd chamber A2,3rd hydraulic fluid port of the first reversal valve 1 and the second chamber B1 connection, the 4th hydraulic fluid port of the first reversal valve 1 and the first chamber A1 connection；First reversal valve 1 has the first working position and the second working position, when the first reversal valve 1 is in the first working position, first hydraulic fluid port of the first reversal valve 1 and the second hydraulic fluid port and the 4th hydraulic fluid port connect and the cut-off of the 3rd hydraulic fluid port, when the first reversal valve 1 is in the second working position, the first hydraulic fluid port of the first reversal valve 1 and the connection of the 3rd hydraulic fluid port and the second hydraulic fluid port and the connection of the 4th hydraulic fluid port.Switching between the first working position and the second working position to realize the first reversal valve 1 easily, the first reversal valve 1 uses solenoid directional control valve.
In this embodiment, between the second hydraulic fluid port and the 3rd chamber A2 and the second external hydraulic fluid port C2 of the first reversal valve 1 can break-make connect through second controlling organization realize.As shown in Figure 2, second controlling organization includes the second reversal valve 2, this second reversal valve 2 has the first hydraulic fluid port, the second hydraulic fluid port and the 3rd hydraulic fluid port, first hydraulic fluid port of the second reversal valve 2 and the second external hydraulic fluid port C2 connection, second hydraulic fluid port of the second reversal valve 2 and the second chamber B1 and the 4th chamber B2 all can connect on break-make ground, the 3rd hydraulic fluid port of the second reversal valve 2 and the second hydraulic fluid port of the first reversal valve 1 and the 3rd chamber A2 connection；Second reversal valve 2 has the first working position and the second working position, when the second reversal valve 2 is in the first working position, the first hydraulic fluid port of the second reversal valve 2 ends with the connection of the second hydraulic fluid port and the 3rd hydraulic fluid port, the first hydraulic fluid port of the second reversal valve 2 and the connection of the 3rd hydraulic fluid port and the cut-off of the second hydraulic fluid port when the second reversal valve 2 is in the second working position.Switching between the first working position and the second working position to realize the second reversal valve 2 easily, the second reversal valve 2 uses solenoid directional control valve.
In this embodiment, between the second hydraulic fluid port and the second chamber B1 of the second reversal valve 2 can break-make connect and the second hydraulic fluid port of the second reversal valve 2 and the 4th chamber B2 between can break-make connect through the 3rd controlling organization realize.As in figure 2 it is shown, again in this embodiment, the 3rd controlling organization includes the 3rd reversal valve 3, bidirectional hydraulic lock 41 and flow divider-combiner 42.
Wherein, 3rd reversal valve 3 has the first hydraulic fluid port, the second hydraulic fluid port and the 3rd hydraulic fluid port, first hydraulic fluid port of the 3rd reversal valve 3 and the second hydraulic fluid port connection of the second reversal valve 2, second hydraulic fluid port of the 3rd reversal valve 3 and the second chamber B1 and the 4th chamber B2 all can connect on break-make ground, the 3rd hydraulic fluid port of the 3rd reversal valve 3 and the 4th chamber B2 connection；3rd reversal valve 3 has the first working position and the second working position, when the 3rd reversal valve 3 is in the first working position, first hydraulic fluid port of the 3rd reversal valve 3 and the connection of the second hydraulic fluid port and the 3rd hydraulic fluid port end, when the 3rd reversal valve 3 is in the second working position, the first hydraulic fluid port of the 3rd reversal valve 3 and the connection of the 3rd hydraulic fluid port and the cut-off of the second hydraulic fluid port.Switching between the first working position and the second working position to realize the 3rd reversal valve 3 easily, the 3rd reversal valve 3 uses solenoid directional control valve.
Break-make can connect through bidirectional hydraulic lock 41 and realize between the second hydraulic fluid port and the second chamber B1 and the 4th chamber B2 of the 3rd reversal valve 3.As a kind of break-make controlling organization, the outlet of the first check valve of bidirectional hydraulic lock 41 connects with the second chamber B1, the import of the first check valve of bidirectional hydraulic lock 41 connects with the second hydraulic fluid port of the 3rd reversal valve 3, the outlet of the second check valve of bidirectional hydraulic lock 41 connects with the 4th chamber B2, and the import of the second check valve of bidirectional hydraulic lock 41 connects with the second hydraulic fluid port of the 3rd reversal valve 3.By arranging this bidirectional hydraulic lock 41, the only second chamber B1 and the second chamber B2 is made all to set up pressure, and when the pressure set up is able to the check valve opening the other side side, the second chamber B1 and the 4th chamber B2 could connect with the second hydraulic fluid port of the 3rd reversal valve 3.
As a kind of synchronizing control, flow divider-combiner 42 is arranged between bidirectional hydraulic lock 41 and the second hydraulic fluid port of the 3rd reversal valve 3, for being further ensured that the synchronization break-make between the second hydraulic fluid port of the 3rd reversal valve 3 and the second chamber B1 and the 4th chamber B2.As shown in Figure 2, first shunting hydraulic fluid port of flow divider-combiner 42 and the inlet communication of the first check valve of bidirectional hydraulic lock 41, second shunting hydraulic fluid port of flow divider-combiner 42 and the inlet communication of the second check valve of bidirectional hydraulic lock 41, the afflux hydraulic fluid port of flow divider-combiner 42 and the second hydraulic fluid port connection of the 3rd reversal valve 3, so inflow (discharge) flow of the flow divider-combiner 42 inflow (discharge) flow and the 4th chamber B2 by controlling the second chamber B1 is equal or proportional, i.e. ensure that the movement velocity of the cylinder rod of the first oil cylinder 6 and the cylinder rod of the second oil cylinder 7 keeps synchronizing or definite proportion relation, and then ensure that the movement velocity of left pallet fork and right fork keeps synchronizing or definite proportion relation, improve degree of regulation.
In this embodiment, external switching mechanism includes the 4th reversal valve 5,4th reversal valve 5 includes the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, first hydraulic fluid port of the 4th reversal valve 5 connects with oil pump, second hydraulic fluid port of the 4th reversal valve 5 connects with fuel tank, 3rd hydraulic fluid port of the 4th reversal valve 5 and the first external hydraulic fluid port C1 connection, the 4th hydraulic fluid port of the 4th reversal valve 5 and the second external hydraulic fluid port C2 connection；4th reversal valve 5 has the first working position and the second working position, when the 4th reversal valve 5 is in the first working position, first hydraulic fluid port of the 4th reversal valve 5 and the connection of the 3rd hydraulic fluid port and the second hydraulic fluid port and the 4th hydraulic fluid port connect, when the 4th reversal valve 5 is in the second working position, first hydraulic fluid port of the 4th reversal valve 5 and the connection of the 4th hydraulic fluid port and the second hydraulic fluid port and the 3rd hydraulic fluid port connect, such 4th reversal valve 5 i.e. can enter oil extraction direction by what switching between the first working position and the second working position controlled the first external hydraulic fluid port C1 and the second external hydraulic fluid port C2, and then control cylinder rod and the respective direction of motion of cylinder rod of the second oil cylinder 7 of the first oil cylinder 6.
Based on the hydraulic schematic diagram shown in Fig. 2, the operation principle of the actuator adjusting means of this embodiment is described as follows:
(1) first reversal valve the 1, second reversal valve 2 and the 3rd reversal valve 3 all must not electricity, namely when first reversal valve the 1, second reversal valve 2 and the 3rd reversal valve 3 are in the first working position, actuator adjusting means is capable of double fork roll adjustment regulative mode:
When controlling the 4th reversal valve 5 and being in the first working position, the first external hydraulic fluid port C1 oil-feed, the second external hydraulic fluid port C2 oil extraction.nullOwing to the first reversal valve 1 is in the first working position，The hydraulic oil entered by the first external hydraulic fluid port C1 can flow to the first chamber A1 and the 3rd chamber A2 respectively，Apply to make its overhanging active force to the cylinder rod of the first oil cylinder 6 and the cylinder rod of the second oil cylinder 7，Now due to the effect of bidirectional hydraulic lock 41，Second chamber B1 and the 4th chamber B2 gradually builds up pressure，When the two pressure set up can open the check valve of the other side side respectively，Bidirectional hydraulic lock 41 is opened，The hydraulic oil of the second chamber B1 and the 4th chamber B2 then can pass through flow divider-combiner 42、First working position of the 3rd reversal valve 3 and the first working position of the second reversal valve 2 flow to the second external hydraulic fluid port C2，And finally it is expelled to fuel tank by the second external hydraulic fluid port C2 and the 4th reversal valve 5，The cylinder rod making the first oil cylinder 6 is overhanging，And drive left pallet fork to move right，And second the cylinder rod of oil cylinder 7 overhanging，And drive right fork to left movement，Namely left pallet fork and right fork adverse movement，Thus two pallet forks are close to each other，Distance each other reduces.
And if the 4th reversal valve 5 is switched to the second working position, then the second external hydraulic fluid port C2 oil-feed, the first external hydraulic fluid port C1 oil extraction.Now, hydraulic oil is then through the second external hydraulic fluid port C2, first working position of the second reversal valve 2 and the first working position of the 3rd reversal valve 3 flow to flow divider-combiner 42, and open bidirectional hydraulic lock 41, flow to the second chamber B1 and the 4th chamber B2 respectively, now it is in the first working position due to the first reversal valve 1, hydraulic oil in first chamber A1 and the 3rd chamber B2 can be expelled to fuel tank via the first external hydraulic fluid port C1, the cylinder rod making the first oil cylinder 6 is retracted, and drive left pallet fork to left movement, and second oil cylinder 7 cylinder rod retract, and drive right fork to move right, the most left pallet fork and right fork adverse movement, thus two pallet forks are located remotely from each other, distance each other increases.
Visible, under such conditions, the first chamber A1 and the 3rd chamber A2 all connects with the first external hydraulic fluid port C1, and the second chamber B1 and the 4th chamber B2 all connects with the second external hydraulic fluid port C2, move the most round about between left pallet fork and right fork, thus realize double fork roll adjustment regulative mode.
(2) first reversal valves 1 and the 3rd reversal valve 3 obtain electric, and second reversal valve 2 must not electricity, namely second reversal valve 2 still in the first working position, and when the first reversal valve 1 and the 3rd reversal valve 3 switch to the second working position, actuator adjusting means is capable of double fork sidesway regulative mode:
nullWhen controlling the 4th reversal valve 5 and making the first external hydraulic fluid port C1 oil-feed and the second external hydraulic fluid port C2 oil extraction，The hydraulic oil that first external hydraulic fluid port C1 flows into flows to the second chamber B1 through the second working position of the first reversal valve 1，Now it is not set up pressure due to the 4th chamber B2，Bidirectional hydraulic lock 41 cannot be opened，The cylinder rod promoting the first oil cylinder 6 is driven left pallet fork to left movement by the hydraulic oil therefore flowing to the second chamber B1，Simultaneously because the first chamber A1 is connected through the second working position and the 3rd chamber A2 of the first reversal valve 1，Therefore the hydraulic oil in the first chamber A1 flows into the 3rd chamber A2 and sets up pressure，Now it is in the second working position due to the 3rd reversal valve 3 and the second reversal valve 2 is in the first working position，Hydraulic oil in 4th chamber B2 is then able to the first working position of the second working position by the 3rd reversal valve 3 and the second reversal valve 2 and flows to the second external hydraulic fluid port C2，And finally it is expelled to fuel tank by the second external hydraulic fluid port C2，Therefore，The cylinder rod of the second oil cylinder 7 drives right fork to be moved to the left the most simultaneously，Two pallet forks are moved simultaneously to the left.
nullIn like manner，When controlling the 4th reversal valve 5 and making the second external hydraulic fluid port C2 oil-feed and the first external hydraulic fluid port C1 oil extraction，Hydraulic oil can be through the second external hydraulic fluid port C2、First working position of the second reversal valve 2、Second working position of the 3rd reversal valve 3 flows to the 4th chamber B2，Now it is not set up pressure due to the second chamber B1，Bidirectional hydraulic lock 41 cannot be opened，The cylinder rod promoting the second oil cylinder 7 is driven right fork to move right by the hydraulic oil therefore flowing to the 4th chamber B2，3rd chamber A2 is connected through the second working position and the first chamber A1 of the first reversal valve 1 simultaneously，Hydraulic oil in 3rd chamber A2 can flow into the first chamber A1 and set up pressure，Now it is in the second working position due to the first reversal valve 1，Hydraulic oil in second chamber B1 is then able to be flowed to the first external hydraulic fluid port C1 by the second working position of the first reversal valve 1，And finally it is expelled to fuel tank by the first external hydraulic fluid port C1，Therefore，The cylinder rod of the first oil cylinder 6 drives left pallet fork to move right the most simultaneously，Two pallet forks are moved simultaneously to the right.
Visible, in this case, the second chamber B1 and the first external hydraulic fluid port C1 connection, first chamber A1 and the 3rd chamber A2 connection, and the 4th chamber B2 and the second external hydraulic fluid port C2 connection, left pallet fork and right fork move the most in the same direction, thus realizes double fork sidesway regulative mode.
(3) first reversal valves 1 and the second reversal valve 2 obtain electric, and the 3rd reversal valve 3 must not electricity, namely first reversal valve 1 and the second reversal valve 2 switch to the second working position, and the 3rd reversal valve 3 still in the first working position time, actuator adjusting means is capable of left fork single action regulative mode:
When controlling the 4th reversal valve 5 and making the first external hydraulic fluid port C1 oil-feed and the second external hydraulic fluid port C2 oil extraction, the hydraulic oil flowed into by the first external hydraulic fluid port C1 flows to the second chamber B1 through the second working position of the first reversal valve 1, owing to now the 4th chamber B2 is not set up pressure, bidirectional hydraulic lock 41 cannot be opened, therefore the active force that the cylinder rod of the first oil cylinder 6 will be applied to make it retract by the hydraulic oil of the second chamber B1 is flowed to, owing to now the second reversal valve 2 is in the second working position, hydraulic oil in first chamber A1 can be expelled to fuel tank via the second external hydraulic fluid port C2, the cylinder rod making the first oil cylinder 6 can drive left pallet fork to left movement；Simultaneously because the hydraulic oil in the 3rd chamber A2 also is able to be expelled to fuel tank via the second external hydraulic fluid port C2, the second oil cylinder 7 does not has driving force, and therefore the cylinder rod of the second oil cylinder 7 can not be moved, and right fork remains in that in situ.
And when controlling the 4th reversal valve 5 and making the second external hydraulic fluid port C2 oil-feed and the first external hydraulic fluid port C1 oil extraction, hydraulic oil can flow to the first chamber A1 through the second working position of the second external hydraulic fluid port C2, the second working position of the second reversal valve 2 and the first reversal valve 1, hydraulic oil in second chamber B1 is then expelled to fuel tank through the external hydraulic fluid port C1 of the second working position of the first reversal valve 1 and first so that the cylinder rod of the first oil cylinder 6 drives left pallet fork to move right；Although now hydraulic oil also is able to arrive the 3rd chamber A2 via second working position of the second external hydraulic fluid port C2, the second reversal valve 2, but owing to now the second chamber B1 cannot set up pressure, bidirectional hydraulic lock 41 cannot be opened, and the 3rd reversal valve 3 is in the first working position, 4th chamber B2 is in cut-off state, therefore, the cylinder rod of the second oil cylinder 7 cannot be moved, and right fork keeps in situ.
Visible, in this case, the second chamber B1 and the first external hydraulic fluid port C1 connection, first chamber A1 and the second external hydraulic fluid port C2 connection, the 4th chamber B2 cut-off, right fork cannot move, and the most left pallet fork can move to the left or to the right, thus realize the regulative mode of left fork single action.
(4) the 3rd reversal valves 3 obtain electric, and second reversal valve 2 and the first reversal valve 1 must not electricity, namely the 3rd reversal valve 3 switch to the second working position, and the second reversal valve 2 and the first reversal valve 1 still in the first working position time, actuator adjusting means is capable of right fork single action regulative mode:
When controlling the 4th reversal valve 5 and making the first external hydraulic fluid port C1 oil-feed and the second external hydraulic fluid port C2 oil extraction, the hydraulic oil flowed into by the first external hydraulic fluid port C1 flows to the first chamber A1 and the 3rd chamber A2 through the first working position of the first reversal valve 1, now it is in the second working position due to the 3rd reversal valve 3 and the second reversal valve 2 is in the first working position, hydraulic oil in 4th chamber B2 can be expelled to fuel tank via the second external hydraulic fluid port C2 so that the cylinder rod of the second oil cylinder 7 drives right fork to left movement；And, owing to the 4th chamber B2 cannot set up pressure, bidirectional hydraulic lock 41 cannot be opened, and first reversal valve 1 be in the first working position, therefore, the second chamber B1 is in cut-off state, although now hydraulic oil can enter the first chamber A1 via the first external hydraulic fluid port C1, but owing to the hydraulic oil in the second chamber B1 cannot be discharged, the cylinder rod of the first oil cylinder 6 cannot be moved, left pallet fork keeps in situ.
And when controlling the 4th reversal valve 5 and making the second external hydraulic fluid port C2 oil-feed and the first external hydraulic fluid port C1 oil extraction, hydraulic oil can flow to the 4th chamber B2 through the second working position of the second external hydraulic fluid port C2, the first working position of the second reversal valve 2 and the 3rd reversal valve 3, and the hydraulic oil that the 3rd in chamber A2 is expelled to fuel tank through the first working position and the first external hydraulic fluid port C1 of the first reversal valve 1 so that the cylinder rod of the second oil cylinder 7 moves right；Now, the second chamber B1 is in cut-off state, and the first chamber A1 is connected with fuel tank by the first external hydraulic fluid port C1, therefore, does not has driving force in the first oil cylinder 6 so that the cylinder rod of the first oil cylinder 6 cannot be moved, and left pallet fork keeps in situ.
Visible, in this case, the 3rd chamber A2 and the first external hydraulic fluid port C1 connection, 4th chamber B2 and the second external hydraulic fluid port C2 connection, the second chamber B1 cut-off, left pallet fork cannot move, and only right fork can move to the left or to the right, thus realize the regulative mode of right fork single action.
Visible, the actuator adjusting means function of this embodiment is more perfect, it is capable of double fork roll adjustment, double fork sidesways, left fork single action and right fork single action these four regulative mode, different regulative modes can be used to regulate the position relationship between two pallet forks according to actual job situation, not only regulative mode is more flexible and convenient, working performance is higher, and the position relationship between two pallet forks can be made preferably to match with reality fork dress job requirements, ensure that two pallet forks can form more stable support to goods, thus ensure to pitch the safety pretended during industry.
Additionally, for compared to needing could to realize with two reversal valves the commutation of the pallet fork direction of motion in prior art, this embodiment only can realize corresponding function, so that realizing of this commutation function is simpler by simply connected reversal valve.
Actuator adjusting means of the present utility model is applicable not only to fork truck, and applying also for other needs to regulate the engineering machinery of position relationship between two actuators by above-mentioned four kinds of regulative modes.
These are only exemplary embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (17)
1. an actuator adjusting means, for including the first actuator and the engineering machinery of the second actuator, described actuator adjusting means includes the first drive mechanism, the second drive mechanism and hydraulic control assembly, wherein, described first drive mechanism includes the first actuator connecting portion, and described first actuator connecting portion is used for being connected with described first actuator so that described first actuator can be along with described first actuator connecting portion motion；Described second drive mechanism includes the second actuator connecting portion, and described second actuator connecting portion is used for being connected with described second actuator so that described second actuator can be along with described second actuator connecting portion motion；It is characterized in that, described hydraulic control assembly can control described first actuator connecting portion and described second actuator connecting portion moves in the following manner:
Described first actuator connecting portion and described second actuator connecting portion adverse movement, to regulate the distance between described first actuator and described second actuator；
Described first actuator connecting portion and described second actuator connecting portion move in the same direction, so that described first actuator and described second actuator are moved to the same side；
Described second actuator connecting portion is static, and described first actuator connecting portion motion, to realize the independently moving of described first actuator；With
Described first actuator connecting portion is static, and described first actuator connecting portion motion, to realize the independently moving of described second actuator.
Actuator adjusting means the most according to claim 1, it is characterized in that, described first drive mechanism includes the first chamber (A1) and the second chamber (B1), when described first chamber (A1) oil-feed during described second chamber (B1) oil extraction described in the first actuator connecting portion drive described first actuator to move to first direction, when described second chamber (B1) oil-feed during described first chamber (A1) oil extraction described in the first actuator connecting portion drive described first actuator to second direction motion opposite to the first direction；Described second drive mechanism includes the 3rd chamber (A2) and the 4th chamber (B2), when described 3rd chamber (A2) oil-feed during described 4th chamber (B2) oil extraction described in second actuator connecting portion drive described second actuator move to described second direction, when described 4th chamber (B2) oil-feed during described 3rd chamber (A2) oil extraction described in second actuator connecting portion drive described second actuator move to described first direction.
Actuator adjusting means the most according to claim 2, it is characterized in that, described hydraulic control assembly includes that the oil circuit with the first external hydraulic fluid port (C1) and the second external hydraulic fluid port (C2) controls assembly, described first external hydraulic fluid port (C1) is for being connected with in oil pump and fuel tank, described second external hydraulic fluid port (C2) is for being connected with another in oil pump and fuel tank, described oil circuit controls assembly can control described first chamber (A1), described second chamber (B1), following oil circuit connection status is realized between described 3rd chamber (A2) and described 4th chamber (B2) and described first external hydraulic fluid port (C1) and described second external hydraulic fluid port (C2):
Described first chamber (A1) and described 3rd chamber (A2) all connect with described first external hydraulic fluid port (C1), and described second chamber (B1) and described 4th chamber (B2) all connect with described second external hydraulic fluid port (C2), so that described first actuator connecting portion and described second actuator connecting portion adverse movement；
Described second chamber (B1) connects with described first external hydraulic fluid port (C1), described first chamber (A1) connects with described 3rd chamber (A2), and described 4th chamber (B2) connects with described second external hydraulic fluid port (C2), so that described first actuator connecting portion and described second actuator connecting portion move in the same direction；
Described second chamber (B1) connects with described first external hydraulic fluid port (C1), described first chamber (A1) connects with described second external hydraulic fluid port (C2), described 4th chamber (B2) cut-off, so that the static and described first actuator connecting portion motion of described second actuator connecting portion；With
Described 3rd chamber (A2) connects with described first external hydraulic fluid port (C1), described 4th chamber (B2) connects with described second external hydraulic fluid port (C2), described second chamber (B1) is ended, so that the static and described second actuator connecting portion motion of described first actuator connecting portion.
Actuator adjusting means the most according to claim 3, it is characterized in that, described oil circuit controls assembly and includes that the first controlling organization, described first controlling organization can control described first chamber (A1) and all connect with described first external hydraulic fluid port (C1) with described 3rd chamber (A2) and described second chamber (B1) cut-off.
Actuator adjusting means the most according to claim 4, it is characterized in that, described first controlling organization can also control described first chamber (A1) and be connected with described second external hydraulic fluid port (C2) and described second chamber (B1) connects with described first external hydraulic fluid port (C1).
Actuator adjusting means the most according to claim 5, it is characterized in that, described first controlling organization includes the first reversal valve (1), described first reversal valve (1) includes the first hydraulic fluid port, second hydraulic fluid port, 3rd hydraulic fluid port and the 4th hydraulic fluid port, first hydraulic fluid port of described first reversal valve (1) connects with described first external hydraulic fluid port (C1), second hydraulic fluid port of described first reversal valve (1) all can be connected to break-make with described second external hydraulic fluid port (C2) with described 3rd chamber (A2) connection and the second hydraulic fluid port of described first reversal valve (1) and described 3rd chamber (A2), 3rd hydraulic fluid port of described first reversal valve (1) connects with described second chamber (B1), 4th hydraulic fluid port of described first reversal valve (1) connects with described first chamber (A1)；Described first reversal valve (1) has the first working position and the second working position, when described first reversal valve (1) is in the first working position, first hydraulic fluid port of described first reversal valve (1) and the second hydraulic fluid port and the 4th hydraulic fluid port connect and the cut-off of the 3rd hydraulic fluid port, when described first reversal valve (1) is in the second working position, the first hydraulic fluid port of described first reversal valve (1) and the connection of the 3rd hydraulic fluid port and the second hydraulic fluid port and the connection of the 4th hydraulic fluid port.
Actuator adjusting means the most according to claim 6, it is characterized in that, described oil circuit controls assembly and also includes that the second controlling organization, described second controlling organization can control the break-make between the second hydraulic fluid port and described 3rd chamber (A2) and the described second external hydraulic fluid port (C2) of described first reversal valve (1).
Actuator adjusting means the most according to claim 7, it is characterized in that, described second controlling organization includes the second reversal valve (2), described second reversal valve (2) has the first hydraulic fluid port, second hydraulic fluid port and the 3rd hydraulic fluid port, first hydraulic fluid port of described second reversal valve (2) connects with described second external hydraulic fluid port (C2), second hydraulic fluid port of described second reversal valve (2) all can be connected to break-make with described second chamber (B1) and described 4th chamber (B2), 3rd hydraulic fluid port of described second reversal valve (2) connects with the second hydraulic fluid port of described first reversal valve (1) and described 3rd chamber (A2)；Described second reversal valve (2) has the first working position and the second working position, first hydraulic fluid port of the second reversal valve (2) described in when described second reversal valve (2) is in the first working position ends with the connection of the second hydraulic fluid port and the 3rd hydraulic fluid port, the first hydraulic fluid port of the second reversal valve (2) described in when described second reversal valve (2) is in the second working position and the connection of the 3rd hydraulic fluid port and the cut-off of the second hydraulic fluid port.
Actuator adjusting means the most according to claim 8, it is characterized in that, described oil circuit controls assembly and also includes that the 3rd controlling organization, described 3rd controlling organization can control the break-make between described second chamber (B1) and the second hydraulic fluid port of described second reversal valve (2) and control the break-make between described 4th chamber (B2) and the second hydraulic fluid port of described second reversal valve (2).
Actuator adjusting means the most according to claim 9, it is characterized in that, described 3rd controlling organization includes the 3rd reversal valve (3), described 3rd reversal valve (3) has the first hydraulic fluid port, second hydraulic fluid port and the 3rd hydraulic fluid port, first hydraulic fluid port of described 3rd reversal valve (3) connects with the second hydraulic fluid port of described second reversal valve (2), second hydraulic fluid port of described 3rd reversal valve (3) all can be connected to break-make with described second chamber (B1) and described 4th chamber (B2), 3rd hydraulic fluid port of described 3rd reversal valve (3) connects with described 4th chamber (B2)；Described 3rd reversal valve (3) has the first working position and the second working position, when described 3rd reversal valve (3) is in the first working position, first hydraulic fluid port of described 3rd reversal valve (3) and the connection of the second hydraulic fluid port and the 3rd hydraulic fluid port end, when described 3rd reversal valve (3) is in the second working position, the first hydraulic fluid port of described 3rd reversal valve (3) and the connection of the 3rd hydraulic fluid port and the cut-off of the second hydraulic fluid port.
11. actuator adjusting means according to claim 10, it is characterized in that, described 3rd controlling organization also includes that break-make controlling organization, described break-make controlling organization can control the break-make between the second hydraulic fluid port of described second chamber (B1) and described 3rd reversal valve (3) and control the break-make between described 4th chamber (B2) and the second hydraulic fluid port of described 3rd reversal valve (3).
12. actuator adjusting meanss according to claim 11, it is characterized in that, described break-make controlling organization includes bidirectional hydraulic lock (41), the outlet of the first check valve of described bidirectional hydraulic lock (41) connects with described second chamber (B1), the import of the first check valve of described bidirectional hydraulic lock (41) connects with the second hydraulic fluid port of described 3rd reversal valve (3), the outlet of the second check valve of described bidirectional hydraulic lock (41) connects with described 4th chamber (B2), the import of the second check valve of described bidirectional hydraulic lock (41) connects with the second hydraulic fluid port of described 3rd reversal valve (3).
13. actuator adjusting meanss according to claim 12, it is characterized in that, described 3rd controlling organization also includes that synchronizing control, described synchronizing control can control the synchronization break-make between described 3rd chamber (A2) and described 4th chamber (B2) and the second hydraulic fluid port of described 3rd reversal valve (3).
14. actuator adjusting meanss according to claim 13, it is characterized in that, described synchronizing control includes flow divider-combiner (42), first shunting hydraulic fluid port of described flow divider-combiner (42) and the inlet communication of the first check valve of described bidirectional hydraulic lock (41), second shunting hydraulic fluid port of described flow divider-combiner (42) and the inlet communication of the second check valve of described bidirectional hydraulic lock (41), the afflux hydraulic fluid port of described flow divider-combiner (42) connects with the second hydraulic fluid port of described 3rd reversal valve (3).
15. according to the arbitrary described actuator adjusting means of claim 3-14, it is characterized in that, described hydraulic control assembly also includes external switching mechanism, described external switching mechanism can control described first external hydraulic fluid port (C1) and described second external hydraulic fluid port (C2) switches between the first duty and the second duty, first external hydraulic fluid port (C1) described in when being in described first duty connects with described oil pump and described second external hydraulic fluid port (C2) connects with described fuel tank, first external hydraulic fluid port (C1) described in when being in described second duty connects with described fuel tank and described second external hydraulic fluid port (C2) connects with described oil pump.
16. 1 kinds of engineering machinery, including the first actuator, the second actuator and actuator adjusting means, it is characterized in that, described actuator adjusting means is the arbitrary described actuator adjusting means of claim 1-15, first actuator connecting portion of described actuator adjusting means is connected with described first actuator, and the second actuator connecting portion of described actuator adjusting means is connected with described second actuator.
17. engineering machinery according to claim 16, it is characterised in that described engineering machinery is fork truck, described first actuator is left pallet fork, and described second actuator is right fork.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100028.9U CN205446225U (en) | 2015-12-25 | 2015-12-25 | Actuating mechanism adjusting device and engineering machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100028.9U CN205446225U (en) | 2015-12-25 | 2015-12-25 | Actuating mechanism adjusting device and engineering machine tool |
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| CN205446225U true CN205446225U (en) | 2016-08-10 |
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| CN201521100028.9U Withdrawn - After Issue CN205446225U (en) | 2015-12-25 | 2015-12-25 | Actuating mechanism adjusting device and engineering machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402177A (en) * | 2015-12-25 | 2016-03-16 | 徐州重型机械有限公司 | Execution mechanism regulating device and engineering machinery |
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2015
- 2015-12-25 CN CN201521100028.9U patent/CN205446225U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402177A (en) * | 2015-12-25 | 2016-03-16 | 徐州重型机械有限公司 | Execution mechanism regulating device and engineering machinery |
| CN105402177B (en) * | 2015-12-25 | 2018-01-16 | 徐州重型机械有限公司 | A kind of executing agency's adjusting means and engineering machinery |
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