CN-224214820-U - Clutch type full-closed manual structure straight travel executing mechanism

Abstract

The utility model relates to the technical field of direct travel cylinders, in particular to a clutch type full-closed manual structure direct travel actuating mechanism which comprises a full-closed shell, wherein a transmission bevel gear is connected in a rotating manner in the full-closed shell, a bevel gear is connected to the transmission bevel gear in a meshed manner, a transmission shaft is fixedly connected to the bevel gear, the transmission shaft penetrates out of the full-closed shell and is fixedly connected with a hand wheel, a mounting hole is formed in the center of the transmission bevel gear, a rotating sleeve is arranged in the mounting hole, a positioning pin hole is formed between the rotating sleeve and the transmission bevel gear, a positioning pin is inserted into the positioning pin hole, a transmission nut is abutted to the rotating sleeve, the abutting surface of the transmission nut and the rotating sleeve is subjected to rough treatment, a threaded through hole is formed in the center of the transmission nut, and a transmission rod is connected to the threads in the threaded through hole. The utility model realizes the reliable switching between manual rotation and power transmission.

Inventors

• Xiang Jiamin
• CHEN YANWEI
• HUANG SHAOLEI
• WU CHUANGANG

Assignees

• 浙江奥马科智能设备有限公司

Dates

Publication Date

20260508

Application Date

20250526

Claims (8)

1. 1. The clutch type full-closed manual structure straight travel executing mechanism is characterized by comprising a full-closed shell (1), wherein a transmission bevel gear (2) is rotationally connected to the full-closed shell (1), a bevel gear (3) is connected to the transmission bevel gear (2) in a meshed mode, a transmission shaft is fixedly connected to the bevel gear (3), penetrates out of the full-closed shell (1) and is fixedly connected with a hand wheel (4), a mounting hole is formed in the center of the transmission bevel gear (2), a rotating sleeve (5) is mounted in the mounting hole, a positioning pin hole is formed between the rotating sleeve (5) and the transmission bevel gear (2), a positioning pin is inserted into the positioning pin hole, a transmission nut (6) is abutted to the rotating sleeve (5), a threaded through hole is formed in the center of the transmission nut (6), and a transmission rod (7) is connected to the threads in the threaded through hole.
2. 2. The clutch type full-closed manual structure straight travel executing mechanism according to claim 1, wherein the rotating sleeve (5) is provided with a protruding block on the abutting surface with the transmission nut (6), the transmission nut (6) is provided with a groove matched with the protruding block on the abutting surface with the rotating sleeve (5), and when the rotating sleeve (5) abuts against the transmission nut (6), the protruding block is inserted into the groove.
3. 3. The clutch type full-closed manual structure straight travel executing mechanism according to claim 1, wherein a fixing sleeve (8) is arranged at the top of the full-closed shell (1), threads are arranged on the inner surface of the fixing sleeve (8), a lower pressing block (9) is connected with the inner threads of the fixing sleeve (8), a sliding sleeve (10) is connected to the transmission nut (6), and when the lower pressing block (9) downwards presses the sliding sleeve (10) until the transmission nut (6) abuts against the rotating sleeve (5), the lower pressing block (9) can rotate relative to the sliding sleeve (10).
4. 4. A clutch type full-closed manual structure straight travel executing mechanism according to claim 3, wherein the lower pressing block (9) is fixedly connected with a clutch switching handle (11).
5. 5. The clutch type full-closed manual structure straight travel executing mechanism according to claim 4, wherein a locking jack is formed between the clutch switching handle (11) and the fixed sleeve (8), and a locking pin (12) is inserted into the locking jack.
6. 6. A clutch type full-closed manual structure straight stroke executing mechanism according to claim 3, wherein the lower end of the full-closed shell (1) is connected with a straight stroke cylinder (13), a connecting piston rod (14) is arranged in the straight stroke cylinder (13), and the connecting piston rod (14) is connected with a transmission rod (7).
7. 7. The clutch type full-closed manual structure straight stroke executing mechanism according to claim 6, wherein two ends of an air cavity of the straight stroke air cylinder (13) are respectively communicated with an air inlet and an air outlet, the air inlet is externally connected with an air source pipeline and is provided with a pneumatic control valve, and the pneumatic control valve controls the movement speed and the output force of a piston rod by adjusting the air inlet pressure.
8. 8. A clutch type full-closed manual structure straight travel executing mechanism according to claim 3, wherein a limiting ring (15) for preventing the transmission rod (7) from deviating is arranged on the fixed sleeve (8).

Description

Clutch type full-closed manual structure straight travel executing mechanism Technical Field The utility model relates to the technical field of straight travel cylinders, in particular to a clutch type full-closed manual structure straight travel executing mechanism. Background In the field of industrial automation, the straight-travel cylinder is used as a core execution element and is widely applied to high-precision linear motion scenes such as valve opening and closing, mechanical positioning and the like, and particularly in industries with strict requirements on safety and reliability such as petrochemical industry, electric power systems and the like. Conventional straight travel cylinders typically rely on pneumatic or electric drive, but in practice there are significant limitations to the fact that when the drive source (e.g., compressed air or electricity) is suddenly interrupted, the operator has to switch to manual mode by removing the air passage connection or using an external tool, which is time consuming and may cause the piston rod to retract accidentally due to air passage pressure relief, with equipment damage or personnel safety hazards. Disclosure of utility model Aiming at the problems, the clutch type full-closed manual structure straight travel actuating mechanism is provided, and a bevel gear is driven by a hand wheel to be meshed with a transmission bevel gear, so that rotary motion is converted into radial rotation. The rotating sleeve is rigidly connected with the transmission bevel gear through the locating pin, and the clutch mechanism is formed by pulling out the locating pin to cut off the power transmission. The friction force is utilized to drive the transmission nut to rotate by the roughened contact surface, the transmission rod is pushed to linearly move by the cooperation of the thread pair, the totally-enclosed shell effectively blocks pollution, ensures operation safety, solves the problem of power dependency, and realizes the integration of manual reliable control and emergency clutch function. In order to solve the problems in the prior art, the utility model provides a clutch type full-closed manual structure straight-stroke actuating mechanism which comprises a full-closed shell, wherein a transmission bevel gear is rotationally connected to the full-closed shell, a bevel gear is connected to the transmission bevel gear in a meshed manner, a transmission shaft is fixedly connected to the bevel gear, the transmission shaft penetrates out of the full-closed shell and is fixedly connected with a hand wheel, a mounting hole is formed in the center of the transmission bevel gear, a rotating sleeve is arranged in the mounting hole, a positioning pin hole is formed between the rotating sleeve and the transmission bevel gear, a positioning pin is inserted into the positioning pin hole, a transmission nut is abutted to the rotating sleeve, the abutting surface of the transmission nut and the rotating sleeve is subjected to rough treatment, a threaded through hole is formed in the center of the transmission nut, and a transmission rod is connected to the threads in the threaded through hole. Preferably, the rotating sleeve is provided with a bump on the abutting surface with the transmission nut, the transmission nut is provided with a groove matched with the bump on the abutting surface with the rotating sleeve, and when the rotating sleeve abuts against the transmission nut, the bump is inserted into the groove. Preferably, the top of the totally-enclosed shell is provided with a fixed sleeve, the inner surface of the fixed sleeve is provided with threads, the inner threads of the fixed sleeve are connected with a lower pressing block, the transmission nut is connected with a sliding sleeve, and the lower pressing block can rotate relative to the sliding sleeve when the lower pressing block downwards presses the sliding sleeve until the transmission nut is abutted to the rotating sleeve. Preferably, the lower pressing block is fixedly connected with a clutch switching handle. Preferably, a locking jack is arranged between the clutch switching handle and the fixed sleeve, and a locking pin is inserted into the locking jack. Preferably, the lower end of the fully-sealed shell is connected with a straight travel cylinder, a connecting piston rod is arranged in the straight travel cylinder, and the connecting piston rod is connected with a transmission rod. Preferably, two ends of the air cavity of the straight-travel air cylinder are respectively communicated with an air inlet and an air outlet, the air inlet is externally connected with an air source pipeline and is provided with a pneumatic control valve, and the pneumatic control valve controls the movement speed and the output force of the piston rod by adjusting the air inlet pressure. Preferably, the fixed sleeve is provided with a limiting ring for preventing the transmission rod from shifting. Compared with the pri