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A confluence control valve for double pumps

A control valve and double pump technology, applied in the field of hydraulic valves, can solve the problems of high installation space requirements, complex structure, large volume, etc., and achieve the effects of increasing stability and service life, increasing service life, saving space and cost

Active Publication Date: 2021-08-06
江苏军源装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, for the unloading valve group, not only the structure is complex, the volume is large, and the installation space requirements are high during installation and use, but also the combination of multiple functional valves will make the cost higher

Method used

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  • A confluence control valve for double pumps
  • A confluence control valve for double pumps
  • A confluence control valve for double pumps

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] to combine Figure 1 to Figure 3 As shown, the dual pump confluence control valve in this embodiment includes a valve body 1 , a valve core 2 and a control rod 3 . The mounting surface 11 of the valve body 1 is provided with A port, B port and T port which are not connected to each other, wherein, the A port is used to communicate with the outlet of the small flow pump, the B port is used to communicate with the outlet of the large flow pump, and the T port is used to communicate with the outlet of the large flow pump. The port is connected to the oil return tank. The control rod 3 is located inside the valve body 1 and can move back and forth axially relative to the valve body 1 . The valve core 2 has a disc structure and is sheathed on the control rod 3 inside the valve body 1 . Arc-shaped grooves 22 and ...

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Abstract

The invention belongs to the technical field of hydraulic valves. The invention discloses a confluence control valve for a double-connected pump, which comprises a valve body, a valve core and a control rod; the valve body is provided with an A port, a B port and a T port; the control rod is located inside the valve body and can be Axial relative movement; the valve core is a disc structure, and is sleeved on the control rod inside the valve body. When the control rod moves axially, it drives the valve core to rotate; arc groove and auxiliary hole; when the spool rotates around the control rod, port B communicates with port A or port T through the arc groove and auxiliary hole or communicates with the three at the same time; port B communicates with port A through the arc groove. When the A port is connected, the T port and the auxiliary hole are kept closed, and when the B port is connected with the T port through the arc groove, the A port and the auxiliary hole are kept closed or connected. The confluence control valve of the double pumps of the present invention not only has small structural volume and low manufacturing cost, but also can realize multiple control functions at the same time.

Description

technical field [0001] The invention belongs to the technical field of hydraulic valves, and in particular relates to a confluence control valve for double pumps. Background technique [0002] During the working process of the hydraulic machine, the slider on the machine generally needs to perform actions such as fast forward, working speed, and fast reverse, so as to realize specific action control. Among them, when performing fast forward and fast rewinding actions, the system flow is large and the pressure is low; when performing work speed actions, the system flow is small and the pressure is high. [0003] At present, when most hydraulic machines perform the above actions, they are generally completed by a hydraulic system composed of a double pump and an unloading valve group. When the slider is required to perform fast forward and rewind actions, the two pumps supply oil at the same time, and the system pressure is low; The small flow pump continues to supply oil, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/074F16K27/04F16K31/16F16K31/50F16K3/10
CPCF16K3/10F16K11/0743F16K27/045F16K31/16F16K31/502
Inventor 邵延荣宋海锋
Owner 江苏军源装备制造有限公司
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