CN201111564Y - Hydraulic integration lower cavity supporting valve block - Google Patents

Abstract

The utility model relates to a hydraulic integrated lower chamber bearing valve block, comprising a valve body, an oil passage inside the valve body, and an oil port which is arranged at the external side of the valve body. The hydraulic integrated lower chamber bearing valve block is characterized in that the top surface of the valve body is provided with a vertical hole and the bottom surface thereof is provided with an oil return port T; the vertical hole is internally provided with a two-way inserted valve; two sides of the two-way inserted valve are respectively provided with a control oil port; the two-way inserted valve is covered by a control cover plate which is fixedly provided with a ball valve electromagnetic steering valve; the front surface of the valve body is provided with an oil inlet A; the left side surface of the valve body is provided with an oil outlet B; the right side surface of the valve body is provided with the control oil port; the external surface of the control oil port is covered by the control cover plate; the side surface of the control cover plate is fixedly provided with an overflow valve. Therefore, the hydraulic integrated lower chamber bearing valve block has the advantages of fast moving downwards, safety and single-direction function and compact structure, can greatly simplify the installation engineering by eliminating the pipe joint and pipe assembly, improve the working reliability, improve the operation reliability of the equipment, reduce the noise of system, and greatly simplify the maintenance of the equipment, etc.

Description

The integrated cavity of resorption supporting of hydraulic pressure valve piece

Technical field

The utility model belongs to industrial valve technology field, particularly relates to a kind of compact structure, is convenient to install and has cavity of resorption supporting, the integrated cavity of resorption supporting of a hydraulic pressure valve piece of function such as descending, safe and reliable, unidirectional fast.

Background technique

In existing hydraulic equipment, hydraulic system is made up of the pump group and the fuel tank of directional control valve that stimulates the menstrual flow greatly and big flow usually, when this system changes hydraulic directio, because pressure height, flow is big, the steering force of commutation is big, and the hydraulic shock during commutation is also big, for reducing above-mentioned harmful effect, require when system during in change flow of pressurized direction, directional control valve should open and close steadily, does not impact, and guaranteeing provides system required reliable power and flow, for this reason, hydraulic control valve adopts the mechanical motion of direct acting type to remove the flow of controlling liquid in the existing equipment, when above-mentioned directional control valve moves, normally moves for making system, the outlet pressure of required direction valve must be controlled in the pressure range of setting, for reaching this purpose, in existing equipment, adopt on the corresponding loop of directional control valve to be communicated with safety valve with pipe fitting.The oil feed line connecting direction valve of oil pump is provided with one-way valve on pipeline in addition, so that when system pressure during greater than the oil pump outlet pressure, can cut off oil circuit, keeps its unidirectional oil supply function; Though above-mentioned various hydraulic element can be realized control, safety and the check function of direction, but owing on the loop of oil pump, have a large amount of pipe joints and pipe fitting, not only installation workload is big, break down easily or the pipeline leakage of oil occurs, thereby influence the hydraulic press ride quality, the noise of whole system generation simultaneously is bigger, is unfavorable for operator's physical and mental health; Its complex structure also brings inconvenience to plant maintenance.

Summary of the invention

The utility model provides a kind of compact structure for solving the technical problem that exists in the known technology, be convenient to install and have cavity of resorption supporting, the integrated cavity of resorption supporting of a hydraulic pressure valve piece of function such as descending, safe and reliable, unidirectional fast.

The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:

The integrated cavity of resorption supporting of a kind of hydraulic pressure valve piece, comprise valve body, oil circuit in the valve body, the hydraulic fluid port in the valve body outside is formed, it is characterized in that: the end face at valve body has a upright opening, the bottom surface of valve body is shaped on oil return inlet T, two-way plug-in valve is housed in upright opening, the left and right sides at two-way plug-in valve is shaped on vertical control port respectively, left side control port is communicated with the output terminal of two-way plug-in valve, right side control port is communicated with the oil return inlet T of valve body bottom surface, the control cover plate that covers two-way plug-in valve is installed on valve body, have on the control cover plate with about the corresponding through hole of vertical control port, on control cover plate, be fixed with the ball valve solenoid directional control valve that is connected with the control cover plate through hole; Be shaped on the filler opening A that is communicated with the two-way plug-in valve input end in the front of valve body, the left surface of valve body is shaped on the oil outlet B that is communicated with the two-way plug-in valve output terminal, on the right flank of valve body, be shaped on the control port of level, on the right flank of valve body, also be coated with control cover plate with the corresponding through hole of control port, be fixed with the relief valve that is communicated with the control cover plate through hole in the side of control cover plate, the relief valve output terminal is communicated with oil return inlet T.

The utility model can also adopt following technical measures:

Oil circuit in the described valve body is that filler opening A is communicated with the two-way plug-in valve input end, oil outlet B is communicated with the two-way plug-in valve output terminal, the two-way plug-in valve output terminal is communicated with the input end of relief valve, the output terminal of relief valve is communicated with oil return inlet T, the two-way plug-in valve output terminal is communicated with the output terminal of ball valve solenoid directional control valve, an input end of ball valve solenoid directional control valve is communicated with oil return inlet T, and another input end of ball valve solenoid directional control valve is communicated with the control end of two-way plug-in valve.

Advantage and the good effect that the utlity model has are: because the utility model is with control cover plate, the ball valve reversing solenoid valve, relief valve and two-way plug-in valve concentrate on the valve body, and in valve body, be provided with and be communicated with filler opening A, oil outlet B, the oil circuit of oil return inlet T replaces pipe fitting, so not only have descending fast, safety and one-way function, and its compact structure, the all loaded down with trivial details program of drain joint and pipe fitting assembling, installing engineering is simplified greatly, functional reliability obviously improves, the operational reliability of raising equipment, the noise of reduction system, the maintenance of equipment is simplified greatly, therefore, the utlity model has tangible economic benefit and social benefit.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the plan view of valve body;

Fig. 5 is the Q-Q sectional view of Fig. 4;

Fig. 6 is the worm's eye view of Fig. 1;

Fig. 7 is a hydraulic schematic diagram of the present utility model.

Among the figure: 1, valve body; 2, upright opening; 3, control cover plate; 4, ball valve reversing solenoid valve; 5, filler opening A; 6, control cover plate; 7, relief valve; 8, oil outlet B; 9-1, control port; 9-2, control port; 10-1,10-2,10-3, oil circuit; 11, control port; 12, oil circuit P; 13, two-way plug-in valve; 14, oil return inlet T.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, end face at valve body 1 has a upright opening 2, the bottom surface of valve body is shaped on and connects fuel tank (not drawing among the figure) oil return inlet T 14, two-way plug-in valve 13 is housed in upright opening, be shaped on vertical control port 9-1 respectively in the left and right sides of two-way plug-in valve, 9-2, control port 9-1 in left side is communicated with the output terminal of two-way plug-in valve, control port 9-2 in right side is communicated with the oil return inlet T 14 of valve body 1 bottom surface, the control cover plate 3 that covers two-way plug-in valve 13 is installed on valve body 1, have on the control cover plate with about vertical control port 9-1, the corresponding through hole of 9-2 is fixed with the ball valve solenoid directional control valve 4 that is connected with the control cover plate through hole on control cover plate 3; Be shaped on the filler opening A 5 that is communicated with two-way plug-in valve 13 input ends in the front of valve body 1, filler opening A 5 connects oil pump (not drawing among the figure), the left surface of valve body 1 is shaped on the oil outlet B 8 that is communicated with two-way plug-in valve 13 output terminals, oil outlet B 8 connects oil cylinder (not drawing among the figure), on the right flank of valve body 1, be shaped on the control port 11 of level, on the right flank of valve body, also be coated with control cover plate 6 with the corresponding through hole of control port, be fixed with the relief valve 7 that is communicated with the control cover plate through hole in the side of control cover plate 6, the relief valve output terminal is communicated with oil return inlet T 14.

See also Fig. 4,5,7, oil circuit 10-1,10-2 and filler opening A5 in the described valve body 1 are communicated with two-way plug-in valve 13 input ends, oil outlet B 8 is communicated with two-way plug-in valve 13 output terminals, the output terminal of two-way plug-in valve 13 is communicated with the input end of relief valve 7, relief valve 7 is communicated with oil return inlet T 14 by the output terminal of oil circuit 10-3, two-way plug-in valve 13 output terminals are communicated with the output terminal of ball valve solenoid directional control valve 4, an input end of ball valve solenoid directional control valve 4 is communicated with oil return inlet T 14, and another input end of ball valve solenoid directional control valve is communicated with the control end of two-way plug-in valve 13.

The utility model is applicable to the cavity of resorption supporting action of hydraulic press:

4 actions of quick descending function---ball valve reversing solenoid valve, the control oil channel of two-way plug-in valve 13 is connected, oil pump (not drawing among the figure) come oil by oil outlet B 8 through two-way plug-in valve 13 last oil sump tanks (not drawing among the figure), if ball valve reversing solenoid valve 4 outages, the ball valve reversing solenoid valve quits work, control oil channel closure, hydraulic press then realize from fast down to the transformation that stops.

Safety function---after 4 outages of ball valve reversing solenoid valve, when oil outlet B 8 pressure are higher than relief valve 7 set pressure values, pressure oil is through oil circuit P12 effect, relief valve 7 is opened, oil outlet B 8 pressure are reduced rapidly, the picking-up spool makes oil outlet B be communicated with oil return inlet T 14 and flows back to fuel tank (not drawing among the figure), guarantee system's security of operation.

One-way function---after 4 outages of ball valve reversing solenoid valve, when oil outlet B 8 oil pocket internal pressures are lower than the force value of relief valve 7 setting, two-way plug-in valve 13 is closed, the hydraulic oil of oil returns filler opening A 5 chambeies in oil outlet B 8 chambeies, two-way plug-in valve 13 plays non-return effect, and guarantee that slider of hydraulic press does not slip down, plays unidirectional and support function.

Claims (2)

1. the integrated cavity of resorption of hydraulic pressure supports the valve piece, comprise valve body, oil circuit in the valve body, the hydraulic fluid port in the valve body outside is formed, it is characterized in that: the end face at valve body has a upright opening, the bottom surface of valve body is shaped on oil return inlet T, two-way plug-in valve is housed in upright opening, the left and right sides at two-way plug-in valve is shaped on vertical control port respectively, left side control port is communicated with the output terminal of two-way plug-in valve, right side control port is communicated with the oil return inlet T of valve body bottom surface, the control cover plate that covers two-way plug-in valve is installed on valve body, have on the control cover plate with about the corresponding through hole of vertical control port, on control cover plate, be fixed with the ball valve solenoid directional control valve that is connected with the control cover plate through hole; Be shaped on the filler opening A that is communicated with the two-way plug-in valve input end in the front of valve body, the left surface of valve body is shaped on the oil outlet B that is communicated with the two-way plug-in valve output terminal, on the right flank of valve body, be shaped on the control port of level, on the right flank of valve body, also be coated with control cover plate with the corresponding through hole of control port, be fixed with the relief valve that is communicated with the control cover plate through hole in the side of control cover plate, the relief valve output terminal is communicated with oil return inlet T.

2. the integrated cavity of resorption supporting of hydraulic pressure according to claim 1 valve piece, it is characterized in that: the oil circuit in the described valve body is that filler opening A is communicated with the two-way plug-in valve input end, oil outlet B is communicated with the two-way plug-in valve output terminal, the two-way plug-in valve output terminal is communicated with the input end of relief valve, the output terminal of relief valve is communicated with oil return inlet T, the two-way plug-in valve output terminal is communicated with the output terminal of ball valve solenoid directional control valve, an input end of ball valve solenoid directional control valve is communicated with oil return inlet T, and another input end of ball valve solenoid directional control valve is communicated with the control end of two-way plug-in valve.

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