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CN-224228973-U - Functional module for single-action actuating mechanism

CN224228973UCN 224228973 UCN224228973 UCN 224228973UCN-224228973-U

Abstract

The utility model discloses a functional module for a single-acting actuating mechanism, which comprises an oil inlet main path and an oil return main path, wherein the oil inlet main path and the oil return main path are respectively used for communicating a rodless cavity of the single-acting actuating mechanism, the functional module further comprises a plurality of electromagnetic valves, oil inlets of the electromagnetic valves are respectively communicated with the oil inlet main path, oil return ports of the electromagnetic valves are respectively communicated with the oil return main path, oil outlets of the electromagnetic valves are respectively connected with inlets of any two different shuttle valves at the same time, so that when any electromagnetic valve loses electricity, each shuttle valve normally has hydraulic oil to enter a corresponding two-way valve, control ports of the two-way valves are respectively communicated with outlets of the two-way valves in a one-to-one correspondence manner, and two side ports of the two-way valves are respectively communicated with the rodless cavity and the oil return main path. According to the utility model, the quick action control of the single-action actuating mechanism is realized through the power failure of any two electromagnetic valves, the loss of the single electromagnetic valve caused by faults is avoided, and the working stability of the whole functional module is improved.

Inventors

  • LIN BO
  • QIAN ZHENWEI
  • DAI YONG

Assignees

  • 苏州丹顿机电有限公司

Dates

Publication Date
20260512
Application Date
20250605

Claims (6)

  1. 1. The functional module for the single-acting actuating mechanism comprises an oil inlet main path (1) and an oil return main path (2), wherein the oil inlet main path (1) and the oil return main path (2) are both used for being communicated with a rodless cavity (30) of the single-acting actuating mechanism (3), an elastic piece (32) is arranged in a rod cavity (31) of the single-acting actuating mechanism (3), one end of the elastic piece (32) is abutted with a piston (33), and the other end of the elastic piece is abutted with the inner wall of the single-acting actuating mechanism (3), and the functional module is characterized by further comprising: The electromagnetic valves comprise a first electromagnetic valve (41), a second electromagnetic valve (42) and a third electromagnetic valve (43), oil inlets of the electromagnetic valves are communicated with the oil inlet main path (1), and oil return ports of the electromagnetic valves are communicated with the oil return main path (2); A plurality of shuttle valves, including a first shuttle valve (51), a second shuttle valve (52) and a third shuttle valve (53), wherein an oil outlet of the first solenoid valve (41) is simultaneously communicated with a first inlet of the first shuttle valve (51) and a first inlet of the third shuttle valve (53), an oil outlet of the second solenoid valve (42) is simultaneously communicated with a second inlet of the first shuttle valve (51) and a first inlet of the second shuttle valve (52), and an oil outlet of the third solenoid valve (43) is simultaneously communicated with a second inlet of the second shuttle valve (52) and a second inlet of the third shuttle valve (53); The oil return system comprises a plurality of two-way valves, wherein the two-way valves comprise a first two-way valve (61), a second two-way valve (62) and a third two-way valve (63), a control port of the first two-way valve (61) is communicated with an outlet of a first shuttle valve (51), a control port of the second two-way valve (62) is communicated with an outlet of a third shuttle valve (53), a control port of the third two-way valve (63) is communicated with an outlet of a second shuttle valve (52), and two side ports of the first two-way valve (61), the second two-way valve (62) and the third two-way valve (63) are respectively communicated with an oil inlet main path (1) and an oil return main path (2).
  2. 2. The functional module for a single-acting actuator according to claim 1, further comprising an oil inlet branch (11) and an oil return branch (21), wherein the oil inlet branch (11) is communicated with the oil inlet main path (1), the oil return branch (21) is communicated with the oil return main path (2), and oil inlets of a plurality of the electromagnetic valves are communicated with the oil inlet branch (11), and oil return ports of a plurality of the electromagnetic valves are communicated with the oil return branch (21).
  3. 3. Functional module for a single-acting actuator according to claim 1, characterized in that the first inlet of the shuttle valve is at a different line distance from the oil inlet P of the main oil inlet circuit (1) than the second inlet of the shuttle valve is at a line distance from the oil inlet P of the main oil inlet circuit (1).
  4. 4. The functional module for a single-acting actuator according to claim 2, further comprising a first oil return main passage (22), said first oil return main passage (22) being in communication with said oil inlet main passage (1), one side port of a plurality of said two-way valves being in communication with said first oil return main passage (22) and the other side port of a plurality of said two-way valves being in communication with said oil return branch passage (21).
  5. 5. The functional module for a single-acting actuator according to claim 4, further comprising a second oil return main (23), said second oil return main (23) being in simultaneous communication with a plurality of other side ports of said two-way valves and with said oil return branch (21).
  6. 6. The functional module for a single-acting actuator according to claim 1, characterized in that the first solenoid valve (41), the second solenoid valve (42) and the third solenoid valve (43) are all two-position three-way solenoid valves.

Description

Functional module for single-action actuating mechanism Technical Field The utility model relates to the field of single-acting execution mechanisms, in particular to a functional module for a single-acting execution mechanism. Background A single-acting actuating mechanism, such as a single-acting hydraulic cylinder, comprises a cylinder body, a piston and a piston rod. The piston rod is arranged in the cylinder body. One end of the piston is connected with the piston, the other end passes through the cylinder body. The oil port of the single-acting hydraulic oil cylinder is arranged at the rodless cavity end of the cylinder body. The piston of the hydraulic oil cylinder extends out when the oil port is filled with oil, and retracts under the action of external force. When the single-acting hydraulic cylinder needs to perform quick action, the oil pressure supply needs to be cut off in time, and at the moment, the elastic piece in the single-acting hydraulic cylinder automatically resets and discharges hydraulic oil in the rodless cavity. In order to cut off the supply of hydraulic oil in time and discharge the hydraulic oil in the rodless cavity and the oil inlet main path in time, in the prior art, an oil return main path is generally arranged at the side of the oil inlet main path to timely supply the hydraulic oil in the oil inlet main path and the rodless cavity to an oil tank, and a single electromagnetic valve is arranged on the oil return main path to control the on-off of the oil return main path. Disclosure of Invention Aiming at the defects of the prior art, the utility model provides the functional module for the single-action executing mechanism, and the loss of single electromagnetic force caused by failure is avoided by using any two electromagnetic valves to lose the electric control of the single-action executing mechanism in a fast action mode, so that the working stability of the whole functional module is improved. The utility model is realized by the following technical scheme: The functional module for the single-acting actuating mechanism comprises an oil inlet main path and an oil return main path, wherein the oil inlet main path and the oil return main path are both used for being communicated with a rodless cavity of the single-acting actuating mechanism, an elastic piece is arranged in a rod cavity of the single-acting actuating mechanism, one end of the elastic piece is abutted with a piston, the other end of the elastic piece is abutted with the inner wall of the single-acting actuating mechanism, and the functional module further comprises: The electromagnetic valves comprise a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, oil inlets of the electromagnetic valves are communicated with the oil inlet main path, and oil return ports of the electromagnetic valves are communicated with the oil return main path; The oil outlets of the first electromagnetic valves are simultaneously communicated with the first inlet of the first shuttle valve and the first inlet of the third shuttle valve, the oil outlets of the second electromagnetic valves are simultaneously communicated with the second inlet of the first shuttle valve and the first inlet of the second shuttle valve, and the oil outlets of the third electromagnetic valves are simultaneously communicated with the second inlet of the second shuttle valve and the second inlet of the third shuttle valve; The multiple two-way valves comprise a first two-way valve, a second two-way valve and a third two-way valve, wherein a control port of the first two-way valve is communicated with an outlet of the first shuttle valve, a control port of the second two-way valve is communicated with an outlet of the third shuttle valve, a control port of the third two-way valve is communicated with an outlet of the second shuttle valve, and two side ports of the first two-way valve, the second two-way valve and the third two-way valve are respectively communicated with the oil inlet main path and the oil return main path. Further, the electromagnetic valve further comprises an oil inlet branch and an oil return branch, wherein the oil inlet branch is communicated with the oil inlet main path, the oil return branch is communicated with the oil return main path, the oil inlets of the electromagnetic valves are communicated with the oil inlet branch, and the oil return openings of the electromagnetic valves are communicated with the oil return branch. Further, the pipeline distance between the first inlet of the shuttle valve and the oil inlet P of the oil inlet main path is not equal to the pipeline distance between the second inlet of the shuttle valve and the oil inlet P of the oil inlet main path. Further, the oil return system further comprises a first oil return main path, wherein the first oil return main path is communicated with the oil inlet main path, one side ports of the two-way valves are commu