WO2013143269A1

WO2013143269A1 - Valve bank, hydraulic control loop and auxiliary device for assembling or disassembling parts

Info

Publication number: WO2013143269A1
Application number: PCT/CN2012/082206
Authority: WO
Inventors: 詹纯新; 刘权; 刘琴; 张建军; 李英智; 周磊; 许俭波; 李义; 胡廷江
Original assignee: 中联重科股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2012-03-31
Filing date: 2012-09-27
Publication date: 2013-10-03
Also published as: CN102635585A; CN102635585B

Abstract

Disclosed is a valve bank (1), having a pressure oil port (1P), an oil returning port (1T), a first working oil port (1A), and a second working oil port (1B), and comprising a four-way reversing valve (11) and a two-position two-way reversing valve (12). A first working oil port (11A), a second working oil port (11B) and a pressure oil port (11P) of the four-way reversing valve communicate with the first working oil port (1A), the second working oil port (1B) and the pressure oil port (1P) of the valve bank respectively. A working oil port (12A) and a pressure oil port (12P) of the two-position two-way reversing valve communicate with an oil returning port (11T) of the four-way reversing valve and the oil returning port of the valve bank respectively. The pressure oil port of the two-position two-way reversing valve communicates with the working oil port in one working position of the two-position two-way reversing valve, and the working oil port of the two-position two-way reversing valve unidirectionally communicates with the pressure oil port in another working position of the two-position two-way reversing valve. Also disclosed are a hydraulic control loop and an auxiliary device for assembling or disassembling parts. By using the valve blank, multiple execution mechanisms (39a, 21) can share one proportional reversing valve (3) to realize independent control.

Description

Valve block, hydraulic control circuit and auxiliary device for mounting or dismounting components

Field of the Invention This invention relates to the field of hydraulics and, in particular, to a valve block, a hydraulic control circuit, and an auxiliary device for mounting or disassembling components. Background technique

In hydraulically controlled equipment, especially large equipment, multiple actuators are often required. For example, the inventor of the present application devised an auxiliary device for mounting or disassembling a component, the auxiliary device comprising a load beam and a leg mounted on the load beam and for supporting the load beam, the leg being capable of opposing The load beam is rotated about a first axis and a second axis that are perpendicular to each other. By rotating the legs relative to the load beam about the first axis and the second axis, the legs can be switched between the extended and retracted states. When the legs are in the extended state, the legs support the load beam, and the components to be installed or removed can be fixed to the load beam for installation or disassembly. When the legs are retracted, the auxiliary device is compact for transport or storage.

In the auxiliary device for mounting or dismounting components, the legs are generally driven to rotate about the first axis and the second axis with respect to the load beam by two actuators (e.g., cylinders). Because of the need to control the direction and speed at which the legs rotate, each actuator typically requires a separate proportional directional valve for control. The cost of a proportional directional valve is higher, and if each actuator is equipped with a separate proportional directional valve, it will inevitably increase the cost. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a valve block with which a plurality of actuators can share a proportional reversing valve for independent control.

In order to achieve the above object, in one aspect, the present invention provides a valve block having a pressure port, a return port, a first working port and a second working port, the valve group including a four-way reversing valve And a two-position two-way reversing valve, wherein the first working port, the second working port and the pressure port of the four-way reversing valve respectively correspond to the first working port and the second working port of the valve block Connected to the pressure port, the working port and the pressure port of the 2/2-way switching valve are respectively connected with the oil return port of the four-way switching valve and the oil return port of the valve group, In a working position of the two-position two-way reversing valve, the pressure port of the two-position two-way reversing valve is electrically connected to the working port, and in another working position of the two-position two-way reversing valve, The working port of the 2/2-way reversing valve is single-passed to the pressure port. Preferably, the four-way reversing valve is a two-position four-way reversing valve or a three-position four-way reversing valve.

Preferably, the four-way reversing valve and/or the two-position two-way reversing valve are electromagnetic reversing valves.

In another aspect, the present invention also provides a hydraulic control circuit including a proportional reversing valve and a plurality of actuators, wherein the hydraulic control circuit further includes a plurality of actuators respectively corresponding to the plurality of actuators a valve block as described above, wherein the two working oil passages of each of the actuators are respectively connected to the first working oil port and the second working oil port of the corresponding valve group, the pressure of the valve group The oil port and the oil return port are respectively connected to the first working oil port and the second working oil port of the proportional directional control valve.

Preferably, the port communication state of the four-way reversing valve of the valve block in one of the working positions is the same as the port communication state when the proportional reversing valve is in the neutral position.

Preferably, when the proportional directional control valve is in the middle position, the first working oil port and the second working oil port of the proportional directional control valve are in communication with the oil return port of the proportional directional control valve, and the ratio is reversed The pressure port of the valve is cut off.

In still another aspect, the present invention provides an auxiliary device for mounting or disassembling a component, the auxiliary device including a load beam and a leg, the leg being mounted on the load beam and configured to support the load beam, And being rotatable relative to the load beam about a first axis and a second axis that are perpendicular to each other, wherein the auxiliary device further comprises a hydraulic control circuit according to the above, the plurality of actuators of the hydraulic control circuit A first actuator for driving the leg to rotate about the first axis relative to the load beam, and a second actuator for driving the branch The leg rotates about the second axis relative to the load beam.

Preferably, the auxiliary device further includes a locking pin for locking rotation of the leg relative to the load beam, and a locking pin actuator for driving the locking pin .

Preferably, the auxiliary device further includes a lock pin control valve connected between the lock pin actuator and the proportional directional valve.

Preferably, the locking pin control valve is a two-position four-way reversing valve, and the first working port and the second working port of the locking pin control valve respectively and two working oil paths of the locking pin actuator In communication, the pressure port and the return port of the lock pin control valve are respectively in communication with the first working port and the second working port of the proportional directional valve.

Preferably, when the locking pin control valve is in one of the working positions, the first working port and the second working port of the locking pin control valve are respectively connected with the pressure port and the oil return port, and the locking pin control valve When in another working position, the first working port, the second working port, the pressure port and the return port of the locking pin control valve are cut off.

Preferably, the leg comprises horizontal legs and vertical legs which are perpendicular to each other, the vertical leg has a telescopic structure, and the auxiliary device further comprises a telescopic actuator for driving the vertical leg to expand and contract. Preferably, the plurality of actuators of the hydraulic control circuit further comprise the telescopic actuator.

Preferably, the telescopic actuator is controlled by an independent proportional directional valve.

Preferably, the auxiliary device further comprises an electronic level for detecting whether the load beam is horizontal.

Preferably, the two working oil passages of the telescopic actuator are respectively provided with a pressure sensor, and the pressure sensor is connected to the controller, and when the pressure value detected by the pressure sensor exceeds a predetermined pressure range, the controller stops The operation of the auxiliary device described.

Preferably, a rotary joint is provided on the line connected to the first actuator and/or the telescopic actuator.

The above valve block can be widely applied to various hydraulic control circuits, and is particularly suitable for a hydraulic control circuit having a plurality of actuators, so that only one proportional reversing valve needs to be configured to control the actions of a plurality of actuators relatively independently, thereby cut costs.

Other features and advantages of the invention will be described in detail in the detailed description which follows. DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

1 is a schematic diagram of the principle of a valve block according to an embodiment of the present invention;

2 is a schematic diagram of the principle of a hydraulic control circuit provided in accordance with an embodiment of the present invention;

Figure 3 is a schematic elevational view of the structure of an auxiliary device for mounting or disassembling components;

Figure 4 is a schematic side view showing the structure of an auxiliary device for mounting or dismounting components shown in Figure 3; Figure 5 is an auxiliary device for mounting or disassembling components according to an embodiment of the present invention. Schematic diagram of the hydraulic control principle;

Figure 6 is a perspective view showing an embodiment of an auxiliary device for mounting or disassembling a component of the present invention; Figure 7 is a front view of the auxiliary device for mounting or dismounting components of Figure 6;

Figure 8 is a side elevational view of the auxiliary device of Figure 6 for mounting or disassembling components;

Figure 9 is a perspective view showing the internal structure of the adjusting unit of the present invention;

Figure 10 is a front elevational view of Figure 9;

Figure 11 is a schematic view showing the internal structure of the leg;

12 to 21 are views for explaining the attachment of the boom using the auxiliary device for mounting or dismounting components of Fig. 6. Description of the reference numerals

1 valve block; 11 four-way reversing valve;

12 two-position two-way reversing valve; proportional reversing valve;

39a, 21 actuator; 4 balancing valve;

10 load beam; leg;

X first axis; z second axis;

41 locking pin actuator; locking pin control valve;

31 horizontal legs; vertical legs;

33 telescopic actuator; two-way hydraulic lock;

6 pressure sensor; 8 rotary joint;

100 auxiliary devices;

10 load beam; 20 spindle; 22 seat;

30 legs; 31 horizontal legs; 32 vertical legs;

34 first leg portion; 35 second leg portion; third leg portion;

37 first pulley; 37a first wire rope;

38 second pulley; 38a second wire rope;

39 pivot pin; 39b swing bearing; 39c fixed pin;

40 carrying pin;

50 adjustment unit;

51 box type housing; 52 mounting plate; 53 first - adjustment hydraulic cylinder;

54 second adjustment hydraulic cylinder; 55 first seat; 56 second support;

57 slider; 57a hinge; third adjustment hydraulic cylinder;

60 electronic control system; 61 power supply;

70 hydraulic system; 80 support legs;

200 boom; 300 first auxiliary vehicle;

400 second auxiliary vehicle; 500 product vehicle;

600 rigging. detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the description here The specific embodiments described are only intended to illustrate and explain the present invention and are not intended to limit the invention.

In the present invention, the orientation words such as "up, down, left, and right" as used herein generally refer to the upper, lower, left, and right as shown in the accompanying drawings; "inside and outside". It refers to the inside and outside of the contour of each component itself.

The description of the specific embodiments below will be divided into two parts. The first part is a hydraulic control circuit section, which mainly describes in detail the hydraulic control circuit of the valve block, the hydraulic control circuit and the auxiliary device for mounting or dismounting components provided in accordance with the present invention, in this part, for mounting or dismounting The mechanical structure of the auxiliary device of the component is only briefly described as necessary. The second part is the mechanical structural part, which mainly describes the mechanical structure of the auxiliary device for mounting or dismounting the parts in more detail. First, the hydraulic control circuit part

In one aspect, as shown in FIG. 1, an embodiment of the present invention provides a valve block 1 , wherein the valve block has a pressure port 1P, a return port 1T, a first working port 1A, and a second The working oil port 1Β, the valve group includes a four-way switching valve 11 and a two-position two-way switching valve 12, the first working oil port 11Α, the second working oil port 11B and the pressure oil of the four-way switching valve 11 The port IIP is respectively connected to the first working port 1A, the second working port 1B and the pressure port 1P of the valve block 1, and the working port 12A and the pressure port 12P of the 2/2-way switching valve 12 Corresponding to the oil return port 11T of the four-way switching valve 11 and the oil return port 1T of the valve block 1, respectively, in a working position of the two-position two-way switching valve 12, the two two The pressure port 12P of the reversing valve 12 is electrically connected to the working port 12A. In the other working position of the 2/2-way reversing valve 12, the working port of the 2/2-way reversing valve 12 12A single guide to the pressure port 12P.

The above-mentioned valve block 1 can be widely applied to various hydraulic control circuits, and is particularly suitable for a hydraulic control circuit having a plurality of actuators, so that only one proportional reversing valve needs to be configured to control the actions of a plurality of actuators relatively independently ( The control principle will be explained in more detail in the hydraulic control circuit below), thus saving costs.

The four-way reversing valve 11 can adopt various suitable structural forms, for example, a two-position four-way reversing valve or a three-position four-way reversing valve. If the four-way reversing valve 11 is a two-position four-way reversing valve, in one of the working positions, the pressure port 11P, the return port 11T and the first working port 11A of the four-way reversing valve 11 The working port 11B is parallelly turned on (the left position shown in FIG. 1 , that is, the pressure port IIP is electrically connected to the first working port 11A, the return port 11T is electrically connected to the second working port 11B) or cross-guided. Passing (not shown in the figure, that is, the pressure port IIP is electrically connected to the second working port 11B, and the oil return port 11T is electrically connected to the first working port 11A); in another working position, the four-way reversing The state of communication between the pressure port 11P of the valve 11 and the oil return port 11T and the first working port 11A and the second working port 11B may be The communication state is the same as when the proportional directional control valve to be connected (for example, the proportional directional control valve 3 hereinafter) is in the neutral position. If the four-way reversing valve 11 is a three-position four-way reversing valve, in addition to the two working positions as shown in Fig. 1, a cross-conducting working position can be provided.

The four-way switching valve 11 and/or the two-position two-way switching valve 12 are electromagnetic reversing valves, and may also be liquid-controlled reversing valves, manual reversing valves, and the like.

On the other hand, as shown in FIG. 2, an embodiment of the present invention provides a hydraulic control circuit including a proportional reversing valve 3 and a plurality of actuators 39a, 21, wherein the hydraulic control The circuit further includes a plurality of valve groups 1 as described above corresponding to the plurality of actuators 39a, 21, respectively, and the two working oil passages of each of the actuators 39a, 21 are respectively corresponding to the The first working port 1A of the valve block 1 and the second working port 1B are in communication, and the pressure port 1P and the return port 1T of the valve block 1 and the first working port 3A of the proportional reversing valve 3, respectively. It is in communication with the second working port 3B.

Preferably, as shown in FIG. 2, the port communication state of the four-way switching valve 11 of the valve block 1 in one of the working positions is the same as the port communication state when the proportional diverter valve 3 is in the neutral position. . As described above, the other working position may be a parallel conducting state or a cross conducting state.

The proportional directional control valve 3 can select various median functions according to actual conditions. Preferably, as shown in FIG. 2, the proportional directional control valve 3 is a directional control valve of a Y-type neutral function, that is, the proportional change When the valve 3 is in the neutral position, the first working port 3A and the second working port 3B of the proportional diverter valve 3 are in communication with the oil return port 3T of the proportional diverter valve 3, the proportional reversing valve The pressure port 3P of 3 is cut off. The proportional reversing valve 3 of the Y-type neutral function can be combined with the balancing valve 4 or the bidirectional hydraulic lock 7 as described below to form a locking circuit, and when the proportional reversing valve 3 is switched to the neutral position, the balancing valve or the bidirectional hydraulic lock 7 The control pressure is released immediately, the check valve is immediately closed, and the actuator can immediately stop moving. In addition, when the proportional directional control valve 3 of the Y-type neutral function is in the neutral position, the pressure port is blocked, which prevents the multiple actuators from interfering with each other.

Preferably, a balance valve 4 is also connected to the two working oil passages of each of the actuators 39a, 21. Thereby, the smoothness of the movement of the actuators 39a, 21 can be improved. The balancing valve 4 can take the form of various suitable balancing valves or balancing circuits, such as a balancing circuit of a one-way sequence valve and a balancing circuit of a pilot operated check valve. The specific structure and mounting manner of the balancing valve 4 are well known in the art and will not be described herein.

The actuators 39a, 21 may be of various suitable types of actuators, such as oil cylinders, hydraulic motors, and the like.

In the embodiment shown in FIG. 2, the hydraulic control circuit has two actuators 39a, 21 and two corresponding valve groups 1. Of course, the number of actuators can be increased according to the actual application and the valve can be increased accordingly. Group 1 The number.

The working principle of the hydraulic control circuit shown in Fig. 2 will be briefly described below. Take the hydraulic control circuit of the actuator 39a as an example. If the electromagnet Y4 of the four-way reversing valve 11 of the valve block 1 and the electromagnet Y3 of the two-position two-way switching valve 12 are not energized, the proportional reversing valve 3 is in the left or right position, and the actuator 39a is Both working oil passages are not electrically connected to the proportional switching valve 3, and the actuator 39a remains stationary. If the electromagnet Y4 of the four-way switching valve 11 of the valve block 1 and the electromagnet Y3 of the two-position two-way switching valve 12 are both energized, the valve block 1 corresponds to two passages, and the actuator 39a is based on the proportional reversing valve. 3 position is operated; if the proportional reversing valve 3 is in the left position (Y1 is energized), the piston rod of the actuator 39a (cylinder) is extended, if the proportional reversing valve 3 is in the right position (Y2 is energized) Then, the piston rod of the actuator 39a (cylinder) is retracted, and if the proportional reversing valve 3 is at the neutral position (Yl, Υ2 are not energized), the piston rod of the actuator 39a (cylinder) remains stationary. In addition, when the piston rod of the actuator 39a is required to extend, the proportional switching valve 3 is located at the left position (Y1 is energized), and the electromagnet Y4 of the four-way switching valve 11 of the valve group 1 can be electrically operated. The electromagnet Y3 of the two-way reversing valve 12 can be de-energized, so that the two-position two-way reversing valve 12 is in the right position, and its one-way conduction allows oil to be returned. The working principle of the hydraulic control circuit of the actuator 21 is similar to that of the actuator 39a, and can be obtained by controlling whether the electromagnet Y5 of the four-way switching valve 11 of the valve block 1 and the electromagnet Y6 of the two-position two-way switching valve 12 are energized. It is controlled whether the proportional directional control valve 3 acts on the actuator 21. Therefore, it is only necessary to configure one proportional directional control valve 3 to control the actions of the plurality of actuators 39a, 21 relatively independently, saving the cost of the hydraulic control circuit.

In another aspect, as shown in FIGS. 3 to 5, an embodiment of the present invention provides an auxiliary device for mounting or disassembling a component, and the auxiliary device for mounting or disassembling a component includes a load beam 10 and a leg 30 mounted on the load beam 10 for supporting the load beam 10, the leg 30 being rotatable relative to the load beam 10 about a first axis X and a second axis Z perpendicular to each other, Wherein the auxiliary device for mounting or disassembling the component further comprises a hydraulic control circuit according to the above, the plurality of actuators of the hydraulic control circuit comprising a first actuator 39a and a second actuator 21, The first actuator 39a is configured to drive the leg 30 to rotate relative to the load beam 10 about the first axis X, and the second actuator 21 is configured to drive the leg 30 relative to the The load beam 10 rotates about the second axis Z.

Preferably, the auxiliary device for mounting or dismounting components further includes a locking pin and a locking pin actuator 41 for locking rotation of the leg 30 relative to the load beam 10, the locking A pin actuator 41 is used to drive the locking pin. Thus, when the leg 30 is rotated to the desired position, the leg 30 can be locked relative to the load beam 10 to prevent the leg 30 from being accidentally moved during installation or removal of the component.

The locking pin actuator 41 can be similar to the above-described actuators 39a, 21, or can be reversed by the same ratio Valve 3 control. That is, the auxiliary device further includes a lock pin control valve 5 connected between the lock pin actuator 41 and the proportional directional valve 3. The lock pin control valve 5 may have the same structure as the above-described valve block 1, or may be replaced with another control valve.

Preferably, as shown in FIG. 5, the lock pin control valve 5 is a two-position four-way reversing valve, and the first working port 5A and the second working port 5B of the locking pin control valve 5 are respectively The two working oil passages of the lock pin actuator 41 are communicated, and the pressure port 5P and the oil return port 5T of the lock pin control valve 5 and the first working port 3A and the second work of the proportional diverter valve 3, respectively Port 3B is connected. More preferably, when the locking pin control valve 5 is in one of the working positions (the left position shown in FIG. 5), the first working port 5A and the second working port 5B of the locking pin control valve 5 are respectively The pressure port 5P is connected to the oil return port 5T, and when the lock pin control valve 5 is in another working position (right position as shown in FIG. 5), the first working port 5A of the lock pin control valve 5 is The second working port 5B, the pressure port 5P and the return port 5T are cut off. Thus, when the lock pin control valve 5 is in the left position, the action of the lock pin actuator 41 is controlled by the proportional directional valve 3, and when the lock pin control valve 5 is in the right position, regardless of which working position the proportional directional control valve 3 is in, Both of the working oil passages of the lock pin actuator 41 are turned off, and the lock pin actuator 41 remains stationary. The lock pin actuator 41 can be various types of actuators such as a cylinder, a hydraulic motor. The lock pin control valve 5 can be used in various control modes, such as a liquid control valve, a solenoid valve, a manual reversing valve, and the like.

Preferably, as shown in FIGS. 3 and 4, the leg 30 includes horizontal legs 31 and vertical legs 32 that are perpendicular to each other, the vertical legs 32 having a telescopic structure, and the auxiliary device further includes A telescopic actuator 33 that drives the vertical leg 32 to expand and contract. Thereby, the height of the load beam 10 is adjusted by the expansion and contraction of the vertical legs 32.

The telescopic actuator 33 can be controlled in a similar manner to the actuators 39a, 21 described above, that is, the plurality of actuators of the hydraulic control circuit further includes the telescopic actuator 33. However, since the telescopic actuator 33 generally needs to be frequently adjusted and the adjustment range is also large, it is preferable that the telescopic actuator 33 is controlled by the independent proportional switching valve 9 so that the entire hydraulic control circuit can be ensured. Safety also enables the control characteristics of the proportional directional control valve 9 to better match the requirements of the telescopic actuator 33.

Preferably, as shown in Fig. 5, a bidirectional hydraulic lock 7 is further disposed on the two working oil passages of the telescopic actuator 33. Thus, when the proportional reversing valve 9 is in the neutral position, the bidirectional hydraulic lock 7 can lock the telescopic actuator 33 to remain stationary, further ensuring the safety of the auxiliary device for mounting or disassembling components.

Preferably, the auxiliary device for mounting or disassembling the component further comprises an electronic level (not shown) for detecting whether the load beam 10 is horizontal. The electronic level can be used to monitor whether the load beam 10 is horizontal, and also to assist the operator in leveling the load beam 10, improving the safety, reliability and stability of the auxiliary device for mounting or disassembling components. Preferably, as shown in FIG. 5, the two working oil passages of the telescopic actuator 33 are respectively provided with a pressure sensor 6, which is connected with the controller, when the pressure value detected by the pressure sensor 6 exceeds a predetermined value. The controller stops the action of the auxiliary device for mounting or disassembling the component during the pressure range. The pressure of the two working oil passages of the telescopic actuator 33 can reflect whether the leg 30 is working normally. If the pressure of the two working oil passages of the telescopic actuator 33 is too large, it indicates that the leg 30 is overloaded, if the telescopic actuator 33 The pressure of the two working oil passages is too small, indicating that the legs 30 are not completely grounded, that is, there is a "virtual leg" phenomenon. At this time, it is necessary to stop the operation of the auxiliary device for mounting or disassembling the component to avoid an accident in which the auxiliary device for mounting or disassembling the component is tipped over.

More preferably, as shown in Fig. 5, a rotary joint 8 is provided on the line connected to the first actuator 39a and/or the telescopic actuator 33. Thereby, it is ensured that the pipe connected to the first actuator 39a and/or the telescopic actuator 33 can be freely rotated during the rotation of the leg 30.

The number of the legs 30 of the above-mentioned auxiliary device for mounting or disassembling components may be set according to specific needs, for example, the embodiment shown in Figures 3 and 4 includes four legs 30 for supporting the load beam respectively. The four corners of 10. Each leg 30 can be driven and controlled by a relatively independent hydraulic control circuit. However, since the distance between the legs 30 at both ends in the width direction of the load beam 10 is short, the two legs 30 can be rotated around the Z axis by the same axis extending in the width direction of the load beam 10, so that the same can be passed A second actuator 21 drives the shaft to rotate to drive the two legs 30 to rotate about the Z axis. Thus, only two second actuators 21 are required to drive the four legs 30 to rotate about the Z axis.

The following is a brief description of the operation of the hydraulic control circuit of the above-described auxiliary device for mounting or disassembling components.

1. Leg 30 rotates around the X axis

a. The electromagnet Y2 of the proportional diverter valve 3, the electromagnet Υ3 of the 2/2-way directional control valve 12, and the electromagnet Υ4 of the four-way directional control valve 11 are simultaneously energized, and the piston rod of the first actuator 39a is retracted. The leg 30 is rotated 90° around the X axis, and the horizontal leg 31 of the leg 30 is swung from a vertical state to a horizontal state;

b. The electromagnet Y1 of the proportional diverter valve 3 and the electromagnet Y4 of the four-way reversing valve 11 are simultaneously energized, the piston rod of the first actuator 39a is extended, and the leg 30 is rotated by 90° around the X axis, the leg 30 The horizontal legs 31 are swinged from a horizontal state to a vertical state.

2, the leg 30 rotates around the Z axis

a. The electromagnet Y1 of the proportional diverter valve 3 and the electromagnet Y5 of the four-way reversing valve 11 are simultaneously energized, the piston rod of the second actuator 21 is extended, and the leg 30 is 90° around the Z axis, and the leg 30 is Vertical leg 32 is rotated by a horizontal state Go to the vertical state;

b. The electromagnet Y2 of the proportional directional control valve 3, the electromagnet Υ6 of the two-position two-way directional control valve 12, and the electromagnet Υ5 of the four-way directional control valve 11 are simultaneously energized, and the piston rod of the second actuator 21 is retracted. The leg 30 is 90° about the x-axis and the vertical leg 32 of the leg 30 is rotated from a vertical state to a horizontal state.

3, locking pin movement

a. The electromagnet Y1 of the proportional reversing valve 3 and the electromagnet Y9 of the locking pin control valve 5 are energized at the same time, the piston rod of the locking pin executing mechanism 41 is extended, and the leg 30 is locked;

b. The electromagnet Y2 of the proportional reversing valve 3 and the electromagnet Y9 of the locking pin control valve 5 are energized at the same time, the piston rod of the locking pin actuator 41 is retracted, and the leg 30 is unlocked.

4, vertical legs 32 telescopic

a. The electromagnet Y8 of the proportional directional control valve 9 is energized, the piston rod of the telescopic actuator 33 is extended, and the vertical leg 32 is raised;

b. The electromagnet Y7 of the proportional directional control valve 9 is energized, the piston rod of the telescopic actuator 33 is retracted, and the vertical leg 32 is lowered. Second, the mechanical structure part

The present invention provides an auxiliary device (hereinafter referred to as an auxiliary device) for mounting or disassembling a component, wherein the auxiliary device 100 includes a load beam 10 and a spindle rotatably mounted at both ends in the longitudinal direction of the load beam 10. 20. A two-legged leg 30 pivotally mounted to each spindle 20, a fixed unit for connecting components to be mounted and removed, and an adjustment unit 50 for adjusting the position of said fixed unit, said adjustment unit 50 is mounted on the load beam 10, the fixing unit is connected to the adjusting unit 50, the rotation center line of the main shaft 20 and the pivot center line of the leg 30 are perpendicular to each other, and the adjusting unit 50 can The position of the fixed unit is adjusted in an adjustment plane that is parallel to the pivot centerline of the leg 30 and the centerline of rotation of the spindle 20.

With the auxiliary device of the present invention, the legs 30 can be deployed and extended by pivoting the legs 30 and the rotating main shaft 20 to adjust the height of the fixed unit, through the pivoting centerline parallel to the legs 30 and the main shaft 20 by the adjusting unit 50. The adjustment plane of the rotation center line adjusts the position of the fixing unit, so that the position of the mounted or disassembled component can be conveniently and arbitrarily adjusted to be suitable for being mounted to or detached from the corresponding position.

Here, the adjustment unit 50 may be formed in various appropriate configurations as long as it can be connected to the fixed unit and move the fixed unit in the adjustment plane (including translation, swing).

In a preferred embodiment of the present invention, as shown in FIG. 6, FIG. 9, and FIG. 10, the auxiliary device may Two adjustment units 50 are provided, which are respectively disposed at two ends of the load beam 10 in the longitudinal direction and span the width of the load beam 10, and each adjustment unit 50 includes a box type housing 51, a mounting plate 52 for mounting the fixing unit, a first adjustment hydraulic cylinder 53 that expands and contracts along a width direction of the load beam 10, and a second adjustment hydraulic cylinder 54 that expands and contracts along a longitudinal direction of the load beam 10, The bottom of the box-shaped housing 51 is provided with a first sliding slot and a second sliding slot (not shown), and the cylinder of the first adjusting hydraulic cylinder 53 is connected to the cylinder through a connecting member passing through the first sliding slot The load beam 10, the piston rod of the first adjustment hydraulic cylinder 53 is fixed to the box-shaped housing 51 through a first support 55, and the cylinder of the second adjustment hydraulic cylinder 54 passes through the second A slider 57 of the chute is coupled to the mounting plate 52, and a piston rod of the second adjustment cylinder 54 is fixed to the box-shaped housing 51 via a second holder 56.

Thus, by the telescopic first adjustment hydraulic cylinder 53, the piston rod of the first adjustment hydraulic cylinder 53 can move the box-shaped housing 51 relative to the load beam 10 in the width direction of the load beam 10, thereby driving the box-shaped housing 51. The connected second adjustment hydraulic cylinder 54, the slider 57, the mounting plate 52 and the fixing unit move together to adjust the position of the fixing unit in the width direction of the load beam 10; by the telescopic second adjustment hydraulic cylinder 54, the second adjustment hydraulic cylinder The cylinder of 54 can be moved along the length of the load beam 10 to move the slider 57, the mounting plate 52 and the fixing unit connected to the cylinder of the second adjustment cylinder 54 to be fixed along the length of the load beam 10. Position of the unit; by keeping the adjustment unit 50 at one end constant and adjusting the position of the adjustment unit 50 at the other end in the width direction of the load beam 10, the fixing unit can be made to swing similarly to the end with the same end Adjustment. Therefore, the adjustment unit 50 can move the fixed unit in an arbitrary manner in an adjustment plane parallel to the pivot center line of the leg 30 and the rotation center line of the main shaft 20.

Preferably, the first adjustment hydraulic cylinder 53 and the second adjustment hydraulic cylinder 54 may both be double-acting hydraulic cylinders for reciprocating adjustment

In addition, preferably, as shown in FIG. 9 and FIG. 10, the first adjustment hydraulic cylinder 53 is located in the middle of the box-shaped housing 51, and the second adjustment hydraulic cylinders 54 are two and respectively located in the first One side of the hydraulic cylinder 53 is adjusted to be arranged and can be connected to the fixed unit at four positions by a total of four second adjustment hydraulic cylinders 54 (and corresponding sliders 57) in the auxiliary device 100 of the present invention.

More preferably, the adjustment unit 50 may further include a third adjustment hydraulic cylinder 58, the third adjustment hydraulic cylinder

The telescopic direction of 58 is perpendicular to the axial direction of the first adjustment hydraulic cylinder 53 and the axial direction of the second adjustment hydraulic cylinder 54, and the third adjustment hydraulic cylinder 58 is coupled to the slider 57, the mounting plate 52 is disposed at a lower end of the third adjustment hydraulic cylinder 58. Wherein, the lower end of the slider 57 may be connected with a hinge 57a, and the third adjustment hydraulic cylinder 58 may be mounted on the hinge 57a. Thereby, the height of the fixed unit can be coarsely adjusted by the telescopic leg 30, and the height of the fixed unit can be finely adjusted by the third adjustment hydraulic cylinder 58. In addition, the mounting plate 52 and the fixing unit may be formed in various appropriate configurations as long as the components to be attached or detached can be connected by the fixing unit and connected to the fixing unit through the mounting plate 52. For example, in a preferred embodiment of the present invention, the mounting plate 52 may have a mounting hole, and the fixing unit includes a carrying pin 40 passing through the mounting hole, and the end of the carrying pin 40 has a stop Flange. Specifically, as shown in FIGS. 7 and 8, the auxiliary device 100 includes two bearing pins 40 disposed in parallel, each of the bearing pins 40 passing through the mounting holes on the two mounting plates 52 opposed to each other, and passing through the convex Limit position. In use, the components to be installed or removed can be secured to the carrier pin 40 by flexible connecting members such as rigging, including cords, steel cables.

Further, in use, the legs 30 can be unfolded and extended by pivoting the legs 30 and the rotating main shaft 20; when not in use, the legs 30 and the rotating main shaft 20 can be pivoted back to retract the legs 30, thereby retracting and Folding legs 30 for easy storage and transport.

In addition, as shown in FIG. 7, the leg device includes two pivot pins 39 fixedly coupled to the main shaft 20, and the two legs 30 are respectively mounted to the two pivot pins 39 and It is possible to pivot about a respective pivot pin 39. By pivoting the leg 30 about the pivot pin 39, the leg 30 can be swung and the two legs 30 can be deployed.

One skilled in the art can implement the rotation of the spindle 20 in a variety of ways. For example, the leg 30 may include a rotary hydraulic cylinder 21 and a seat 22 for rotating the main shaft 20, the support 22 is fixedly coupled to the main shaft 20, and one end of the rotary hydraulic cylinder 21 is connected to The support 22 is connected to the load beam 10 at the other end. Among them, the rotary hydraulic cylinder 21 may be any suitable hydraulic cylinder as long as the spindle 20 can be driven to rotate. For example, in the embodiment shown in Figs. 7 and 8, the rotary cylinder 21 is a hydraulic cylinder that can linearly reciprocate, and the spindle 20 is rotated by its linear reciprocating movement. Alternatively, the rotary hydraulic cylinder 21 may be a rotary cylinder capable of outputting torque.

Moreover, the legs 30 can be pivoted about the pivot pin 39 in a variety of suitable manners. For example, in the embodiment shown in FIG. 7, the leg 30 includes an oscillating hydraulic cylinder 39a and a oscillating bearing 39b, and the oscillating bearing 39b is fixedly coupled to the pivot pin 39, the oscillating hydraulic cylinder One end of the 39a is connected to the swinging seat 39b, and the other end is connected to the leg 30.

In a preferred embodiment of the present invention, as shown in FIGS. 7 and 11, the leg 30 may include horizontal legs 31 and vertical legs 32 that are perpendicular to each other, and the legs 30 pass through the horizontal legs 31. The spindle 20 is pivotally mounted to the horizontal leg 31. With this arrangement, the main shaft 20 can be rotated from the horizontal position shown in Fig. 7 to the vertical position by only 90 degrees of rotation. Further, by adopting the horizontal legs 31 and the vertical legs 32 which are perpendicular to each other, the legs 30 can be formed into a folded structure, further reducing the space required for storage. Preferably, the vertical legs 32 may be one or at least two sections of telescopic structure to adjust the height of the load beam 10 as desired.

Wherein, the vertical legs 32 can be retractable by various means. For example, the vertical legs 32 can include at least two leg portions that are sleeved with each other and can be relatively telescopic, so that the range of adjustment can be further increased.

For example, in a preferred embodiment of the present invention, as shown in FIG. 11, the vertical leg 32 may include a first leg portion 34, a second leg portion 35, and a third leg that are sequentially disposed from the outside to the inside. a leg portion 36 and a telescopic cylinder 33, one end of the first leg portion 34 is fixedly connected to the horizontal leg 31, and one end of the telescopic hydraulic cylinder 33 is connected to the second leg portion 35, and the other end is connected The horizontal leg 31 is connected, and the vertical leg further includes a first pulley 37 and a first wire rope 37a. The first pulley 37 is mounted on the extension cylinder 33 and connected to the second leg portion 35. At one end, one end of the first wire rope 37a is connected to the first leg portion 34, and the other end is bypassed by the first pulley 37 and connected to the third leg portion 36. With the above arrangement, the second leg portion 35 can be extended or retracted by extending or contracting the piston rod of the telescopic hydraulic cylinder 33. While the second leg portion 35 is extended, the third leg portion 36 is automatically extended by the first pulley 37 and the first wire rope 37a. Specifically, when the second leg portion 35 is extended, the second leg portion 35 and one end of the telescopic hydraulic cylinder 33 connected to the second leg portion 35 are moved away from the first leg portion 34, so that the first wire rope 37a The portion from the first pulley 37 to the third leg portion 36 applies a pulling force to the third leg portion 36 to extend the third leg portion 36.

In order to facilitate the arrangement, in the embodiment shown in FIG. 11, the piston rod of the telescopic hydraulic cylinder 33 is connected to the horizontal leg 31, the cylinder of the telescopic hydraulic cylinder 33 is connected to the second leg portion 35, and the first pulley 37 is mounted on At the end of the cylinder, the two ends of the first wire rope 37a are respectively connected to the root of the first leg portion 34 (i.e., the end connected to the horizontal leg 31) and the root of the third leg portion 36 (i.e., near the horizontal branch) The end of the leg 31). Further, in order to facilitate loading and unloading, the first leg portion 34 and the horizontal leg portion 31 may be formed in a unitary structure.

More preferably, the vertical leg 32 further includes a second pulley 38 and a second wire rope 38a, the second pulley 38 is mounted on the second leg portion 35, and one end of the second wire rope 38a is connected to The first leg portion 34 has the other end bypassing the second pulley 38 and is coupled to the third leg portion 36. Thereby, when the second leg portion 35 is retracted by the telescopic hydraulic cylinder 33, the third leg portion 36 can be automatically retracted by the second pulley 38 and the second wire rope 38a.

In order to facilitate the arrangement, in the embodiment shown in Fig. 11, the second pulley 38 is attached to the root of the second leg portion 35 (i.e., near the end of the horizontal leg 31), and the two ends of the second wire rope 38a are respectively connected to The position of the head of the first leg portion 34 (i.e., the end away from the horizontal leg 31) and the root of the third leg portion 36 are adjacent.

Preferably, a walking wheel may be provided at the end of the vertical leg 32 so that the assisting device 100 can be moved along the pre-arranged track by the walking wheel. Additionally, the accessory device 100 can also include a support leg 80 to support the weight of the entire device when not in use. The support leg 80 can be mounted, for example, on the underside of the load beam 10. In addition, the support legs 80 may be divided into two pairs arranged in the longitudinal direction of the load beam 10, and two of the support legs 80 in each pair are located on both sides in the width direction of the load beam 10. In addition, the support legs 80 can also be telescopic legs.

Since the installation and disassembly are in reverse order, this article takes the installation as an example. Next, a method of mounting a large-sized component using the auxiliary device 100 of the present invention will be described by taking the mounting boom 200 as an example.

In the first step, as shown in Fig. 12, the first auxiliary vehicle 300 loaded with the auxiliary device 100 is parked at an appropriate position on the assembly site. Among them, the auxiliary device 100 is supported on the first auxiliary vehicle 300 through the support legs 80, and the legs 30 are in the stowed state. Specifically, the two horizontal legs 31 are located on both sides of the main body 10 and are vertically opposed; the two vertical legs 32 are disposed in parallel and contracted to substantially the length of the first leg portion 34.

In the second step, as shown in Fig. 13, the support legs 80 are extended to raise the height of the load beam 10 for subsequent deployment of the legs 30.

In the third step, the horizontal leg 31 (about the pivot pin 39) is pivoted 90 degrees so that the two horizontal legs 31 (and the vertical legs 32) are laid flat, that is, the legs 30 are laid flat to the load. Both sides of the beam 10, as shown in Figure 14.

In the fourth step, the main shaft 20 (by the rotary hydraulic cylinder 22) is rotated by 90 degrees to move the two vertical legs 32 to the vertically opposite positions (and extend the appropriate length as needed) so that the load beam 10 passes The legs 30 are supported at a desired height as shown in FIG.

It should be noted that, in the above steps, the leg 30 is first pivoted, and then the main shaft 20 is rotated. However, it can be understood by those skilled in the art that by changing the structural form and size of the leg 30, the main shaft 20 can also be rotated first. Then the legs 30 are pivoted again.

In the fifth step, the support leg 80 is contracted to support the entire load of the auxiliary device 100 only through the leg 30, and the first auxiliary vehicle 300 is driven away, as shown in FIG.

In the sixth step, as shown in Fig. 17, the second auxiliary vehicle 400 loaded with the boom 200 is driven in, and the boom 200 is positioned below the auxiliary device 100.

In the seventh step, as shown in FIG. 18, the jib 600 (which may be a steel cable or a rope) is used to connect the boom 200 and the carrier pin 40. For example, the two ends of the rigging 600 are respectively wound and fixed to the boom 200 and the carrier pin. On the shaft 40, the boom 200 is moved away from the second auxiliary vehicle 400.

In the eighth step, the second auxiliary vehicle 400 is removed, and the extension legs 30 are provided to raise the boom 200 to an appropriate height, as shown in FIG.

In the ninth step, the product cart 500 to which the boom 200 is to be mounted is opened, so that it is located below the boom 200, and is connected. The support leg 30 and the adjustment unit 50 adjust the position of the boom 200 so that the corresponding mounting structure (for example, the pin hole) of the boom 200 and the corresponding mounting foundation of the product vehicle 500 (for example, a turntable, a variable amplitude cylinder, etc.) Quasi, as shown in Figure 20.

In the tenth step, the attachment structure of the boom 200 and the product vehicle 500 is connected (e.g., by inserting a lock pin), and the connection of the boom 200 and the auxiliary device 100 is removed (the rigging 600 is removed) to complete the installation of the boom 200.

The product cart 500 can then be removed to allow the accessory 100 to wait in place to continue installing other large components, or to disassemble large components from other product vehicles 500 in reverse operation. The auxiliary device 100 can be stowed by the reverse operation of the first step to the fifth step.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments, and various simple modifications of the technical solutions of the present invention may be made within the scope of the technical idea of the present invention. These simple variations are within the scope of the invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the invention may not be further described in various possible combinations.

In addition, any combination of various embodiments of the invention may be made, as long as it does not deviate from the idea of the invention, and it should be regarded as the disclosure of the invention.

Claims

Rights request

A valve block, characterized in that the valve block has a pressure port (1P), a return port (1T), a first working port (1A) and a second working port (1Β), the valve block The utility model comprises a four-way reversing valve (11) and a two-position two-way reversing valve (12), the first working port (11Α) and the second working port (11B) of the four-way reversing valve (11) and A pressure port (IIP) is respectively connected to the first working port (1A), the second working port (1B) and the pressure port (1P) of the valve block (1), and the two-position two-way reversing The working port (12A) and the pressure port (12P) of the valve (12) are respectively connected to the oil return port (11T) of the four-way switching valve (11) and the oil return port of the valve block (1) ( 1T) connected, in a working position of the 2/2-way directional control valve (12), the pressure port (12P) and the working port (12A) of the 2/2-way directional control valve (12) In the other working position of the 2/2-way directional control valve (12), the working port (12A) of the 2/2-way directional control valve (12) is single-passed to the pressure port (12P) ).

2. The valve block according to claim 1, wherein the four-way reversing valve (11) is a two-position four-way reversing valve or a three-position four-way reversing valve.

The valve block according to claim 1, characterized in that the four-way switching valve (11) and/or the two-position two-way switching valve (12) are electromagnetic reversing valves.

4. A hydraulic control circuit comprising a proportional reversing valve (3) and a plurality of actuators, wherein the hydraulic control circuit further comprises a plurality of bases respectively corresponding to the plurality of actuators The valve block (1) according to any one of claims 1 to 3, wherein the two working oil passages of each of the actuators respectively correspond to the first working oil port of the corresponding valve group (1) (1A) ) communicating with the second working port (1B), the pressure port (1P) and the return port (1T) of the valve block (1) and the first working port of the proportional directional valve (3), respectively (3A) Connected to the second working port (3B).

The hydraulic control circuit according to claim 4, wherein the port communication state of the four-way switching valve (11) of the valve block (1) is in one of the working positions and the proportional commutation When the valve (3) is in the neutral position, the port connection state is the same.

6. The hydraulic control circuit according to claim 5, wherein when the proportional directional control valve (3) is at a neutral position, the first working port (3A) of the proportional directional control valve (3) and Second working port (3B) and said The oil return port (3T) of the proportional directional control valve (3) is connected, and the pressure port (3P) of the proportional directional control valve (3) is closed.

7. An auxiliary device for mounting or disassembling a component, the auxiliary device comprising a load beam (10) and a leg (30), the leg (30) being mounted on the load beam (10) and used for Supporting the load beam (10) and being rotatable relative to the load beam (10) about a first axis (X) and a second axis (Z) perpendicular to each other, wherein the auxiliary device further comprises a right The hydraulic control circuit of any one of claims 4 to 6, wherein the plurality of actuators of the hydraulic control circuit include a first actuator (39a) and a second actuator (21), the first actuator ( 39a) for driving the leg (30) to rotate about the first axis (X) relative to the load beam (10), the second actuator (21) for driving the leg (30) Rotating about the second axis (Z) relative to the load beam (10).

8. The auxiliary device for mounting or disassembling a component according to claim 7, wherein the auxiliary device further comprises a locking pin and a locking pin actuator (41) for locking the The locking pin actuator (41) is used to drive the locking pin relative to the rotation of the load beam (10).

9. The auxiliary device for mounting or disassembling a component according to claim 8, wherein the auxiliary device further comprises a lock pin control valve (5) connected to the lock pin control valve (5) Lock pin actuator

(41) Between the proportional directional control valve (3).

10. The auxiliary device for mounting or disassembling a component according to claim 9, wherein the lock pin control valve (5) is a two-position four-way reversing valve, and the locking pin control valve (5) a first working port (5A) and a second working port (5B) respectively communicating with two working oil passages of the locking pin actuator (41), the locking pin controlling the pressure oil of the valve (5) The port (5P) and the oil return port (5T) are respectively connected to the first working port (3A) and the second working port (3B) of the proportional directional valve (3).

11. The auxiliary device for mounting or disassembling a component according to claim 10, wherein when the locking pin control valve (5) is in one of the working positions, the locking pin controls the valve (5) A working port (5A) and a second working port (5B) are respectively connected to the pressure port (5P) and the return port (5T), and when the lock pin control valve (5) is in another working position, the The first working port (5A), the second working port (5B), the pressure port (5P), and the return port (5T) of the lock pin control valve (5) are cut off.

12. The auxiliary device for mounting or disassembling a component according to claim ,, wherein said leg (30) comprises horizontal legs (31) and vertical legs (32) perpendicular to each other, The vertical leg (32) has a retractable structure, and the auxiliary device further includes a telescopic actuator (33) for driving the vertical leg (32) to telescope.

13. Auxiliary device for mounting or disassembling a component according to claim 12, characterized in that said plurality of actuators of said hydraulic control circuit further comprise said telescopic actuator (33).

14. Auxiliary device for mounting or disassembling a component according to claim 12, characterized in that the telescopic actuator (33) is controlled by a separate proportional directional valve.

The auxiliary device for mounting or disassembling a component according to any one of claims 12 to 14, characterized in that the auxiliary device further comprises an electron for detecting whether the load beam (10) is horizontal Level.

The auxiliary device for mounting or disassembling components according to any one of claims 12 to 14, characterized in that the two working oil passages of the telescopic actuator (33) are respectively provided with pressure sensors ( 6), the pressure sensor (6) is connected to the controller, and when the pressure value detected by the pressure sensor (6) exceeds a predetermined pressure range, the controller stops the operation of the auxiliary device.

17. Auxiliary device for mounting or disassembling a component according to any one of claims 12 to 14, characterized in that, with the first actuator (39a) and/or the telescopic actuator (33) ) The connecting pipe is provided with a rotary joint (8).