A maintenance method for a compressor crosshead hydraulic coupling fastening device
The technology of a fastening device and a cross head is applied in the maintenance field of the hydraulic coupling and fastening device of the compressor cross head, and can solve the problems such as the lock nut 8 cannot be easily removed, the maintenance cost is increased, the sealing effect is lost, and the cost is low. , Good economic and social benefits, convenient and easy removal effect
Active Publication Date: 2021-09-21
河南硅烷科技发展股份有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The piston rod 1 needs to be disassembled when the compressor is overhauled. The current problem is that the sealing ring 10 will fail after a period of use and lose its sealing effect, which will cause high-pressure oil leakage during disassembly, and cause the lock nut 8 to be unable to be easily removed. , which brings inconvenience to maintenance; in view of this problem, the existing treatment and maintenance methods generally use cutting, but cutting will inevitably cause damage and increase maintenance costs; some solutions to this problem are to improve the hydraulic coupling fastening device Its own structure has problems such as high cost and long cycle
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] It should be understood that if figure 1 As shown, when the existing hydraulic coupling fastening device connects the piston rod 1 and the crosshead 4, it is carried out according to the following steps: (a) Assemble the pressure body 11, the sealing ring 10, the pressure piston 9, and the lock nut 8 Finally, install the tail of the piston rod 1 to be close to the shoulder of the piston rod 1, and return the lock nut 8 to a position flush with the pressure piston 9; (b) screw the adjusting ring 6 into the positioning ring 5 to make it radially The hole is aligned with any screw hole on the positioning ring 5, and the fastening screw 7 is screwed into the tail of the piston rod 1; (c) the thrust ring (two halves) 2 is installed on the outer end of the tail of the piston rod 1, and the connecting spring 3 Hoop; (d) crank to move the crosshead 4, introduce the tail of the piston rod 1 into the neck of the crosshead 4, and twist the adjusting ring 6 with a rod wrench to scr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a maintenance method for a compressor crosshead hydraulic coupling fastening device. The maintenance method comprises the following steps: firstly inject pressure-filled leakage plugging glue into an oil cavity and an oil circuit through a high-pressure oil pump joint, and then pass the high-pressure oil pump joint Injecting high-pressure oil, the high-pressure oil pushes the pressure piston, forcing the tail of the piston rod to produce elastic stretching deformation, so that the pre-tightening force of the connection between the piston rod and the cross head disappears, and the lock nut is easily removed, and the piston rod is disassembled smoothly, so as to facilitate the compressor. maintenance; the invention will not damage any components, no redesign is required, and the maintenance cost is low; the invention can inject high-pressure oil immediately after injecting the plugging glue with pressure, and the two together play a sealing role, so that the high-pressure oil pushes the piston rod to generate Elastic stretching deformation makes the connection pre-tightening force between the piston rod and the crosshead disappear, so that the lock nut can be removed smoothly, easily and quickly, and the maintenance cycle is short. It has good economic and social benefits and is worth popularizing.
Description
technical field [0001] The invention belongs to the technical field of compressor equipment, and in particular relates to a maintenance method for a compressor crosshead hydraulic coupling fastening device. Background technique [0002] The hydraulic coupling fastening device is used for the connection between the piston rod and the crosshead, such as figure 1 As shown, the existing compressor crosshead hydraulic coupling fastening device includes a thrust ring (two halves) 2, a connecting spring 3, a positioning ring 5, an adjusting ring 6, a fastening screw 7, and a lock nut 8 , pressure body 11, pressure piston 9 and sealing ring 10, pressure body 11 is provided with high-pressure oil pump joint 12, and pressure body 11 is provided with oil chamber 14, and high-pressure oil pump joint 12 communicates with oil chamber 14 through oil circuit 13. [0003] Such as figure 1 As shown, after the piston rod 1 is connected to the crosshead 4 through the hydraulic connection and ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/14F04B39/00
CPCF04B39/0022F04B39/14
Inventor 孟国均蔡前进孙雷张戈
Owner 河南硅烷科技发展股份有限公司