A threaded cartridge valve
A threaded cartridge and valve body technology, applied in the field of hydraulic valves, can solve problems such as bulky volume and high cost, and achieve the effects of compact size, low manufacturing cost, and simple and reasonable structure
Active Publication Date: 2019-08-23
SHANGHAI JIANGLANG TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the prior art, the unloading valve group is often used to control the double hydraulic pump from fast feed to working feed, so that the low pressure and high flow pump can be unloaded. The existing unloading valve group generally consists of an independent one-way The valve and unloading valve are integrated into one valve block, which is bulky and expensive
Method used
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Embodiment Construction
[0017] see Figure 1-5 As shown, the present invention provides a threaded cartridge valve, including a valve body 4, a screw sleeve 9, and an unloading valve core 6. The valve body 4 is coaxially provided with interconnected threaded holes 401, Unloading spool hole 402, communication hole 403, push rod hole 404, flow groove 405, mounting hole 406; The T port communicated with the core hole 402 is provided with a P port in the middle of the communication hole 403, and the A port communicated with the installation hole 406 is provided at the lower end near the valve body 4; The spool body 601 used in the hole 402, and the spool cone 602 arranged on the spool body 601 to control the connection of the communication hole 403 and the unloading spool hole 402, the spool cone 602 is provided with Slidingly connected to the valve core slide rod 603 in the communication hole 403, the circumferential side of the valve core slide rod 603 is provided with an annular slot 604 near the val...
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The invention discloses a threaded cartridge valve. The threaded cartridge valve is characterized by comprising a valve body, a thread sleeve and an unloading valve element, wherein a threaded hole, an unloading valve element hole, a communication hole, a push rod hole, a flowing groove and an installation hole are sequentially and coaxially arranged in the valve body from bottom to top and mutually communicate, the circumferential side face of the valve body is provided with a port T, a port P and a port A, the unloading valve element comprises a valve element body and a valve element cone, the valve element cone is provided with a valve element sliding rod, the circumferential side face of the valve element sliding rod is provided with an annular cut groove, a first flowing groove is formed between the annular cut groove and the inner side wall of the communication hole, a first flow hole and a second flow hole are arranged in the valve body, the unloading spring is installed in thethreaded hole, the thread sleeve is installed at the upper end of the threaded hole, and an adjusting rod is connected into the thread sleeve in a threaded manner; a one-way valve element is installedin the installation hole, the opening formed in the lower end of the installation hole is provided with a spring seat, and a one-way spring is installed in the installation hole. The threaded cartridge valve is compact in structure, easy to machine and low in manufacturing cost.
Description
technical field [0001] The invention relates to the technical field of hydraulic valves, in particular to a threaded cartridge valve. Background technique [0002] Duplex hydraulic pumps are often used in special machine tools for machining with fast feed and work feed requirements. At this time, the duplex pump consists of a high-pressure small-flow hydraulic pump and a low-pressure large-flow hydraulic pump. When fast feeding, the two hydraulic pumps supply oil at the same time (the pressure is low at this time), and when the work is feeding, the oil is supplied by the high-pressure and small-flow hydraulic pump (the pressure is high at this time), and at the same time, the oil circuit system is used The large-flow pump is unloaded, which can save energy and reduce oil heating compared with a high-pressure, high-flow pump. In the prior art, the unloading valve group is often used to control the double hydraulic pump from fast feed to working feed, so that the low pressure...
Claims
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IPC IPC(8): F16K1/32F16K1/38F16K17/20
Inventor 不公告发明人
Owner SHANGHAI JIANGLANG TECH CO LTD