CN-122014577-A - Movable connecting rod large-volume diaphragm compressor

Abstract

The invention relates to a movable connecting rod large-volume diaphragm compressor, which mainly comprises a diaphragm A, a cover plate A, an elastic sealing gasket, a support plate A, a left novel movable connecting rod front part, a movable connecting pin, a left novel movable connecting rod rear part, a right novel movable connecting rod, a swinging rod mounting structure and the like, the invention provides an elastic sealing gasket technology and a novel movable connecting rod technology, solves the problems of small membrane cavity volume, low efficiency and membrane damage, solves the problem of wear at the cross pin, solves the problem of fatigue and crack of threads at the end part of a piston rod due to concentrated stress of threads, saves energy, prolongs the service life of a diaphragm compressor, and achieves remarkable progress of the diaphragm compressor technology.

Inventors

• LUO XIHUA
• TAN SHIYUAN

Assignees

• 罗戏花
• 谈石元

Dates

Publication Date

20260512

Application Date

20260211

Claims (3)

1. 1. A movable connecting rod large-volume diaphragm compressor comprises a diaphragm A (16), a cover plate A (17), an elastic sealing gasket (18), a support plate A (19), a hydraulic cylinder A (20), a piston A (21), a piston pin A (22), a left novel movable connecting rod front part (23), a movable connecting pin (24), a left novel movable connecting rod rear part (25), a left connecting pin (26), a crank pin (27), a crankshaft A (28), a base A (29), a right connecting pin (30), a right novel movable connecting rod (31), a swinging rod (32) and a mounting swinging rod structure (33), and is characterized in that the periphery of the diaphragm A (16) is fastened with the elastic sealing gasket (18), the support plate A (19) is arranged below the elastic sealing gasket (18), the hydraulic cylinder A (20) is arranged below the support plate A (19), the hydraulic cylinder A (20) is provided with the piston A (21), the piston pin A (22) is connected with the left novel movable connecting rod front part (23), the left novel movable connecting rod front part (23) is connected with the left novel movable connecting rod front part (25) through the movable connecting pin (24), the left novel movable connecting rod front part (23) is assembled on the left novel movable connecting rod (25) through the movable connecting pin (24), the center line (32) is arranged on the left novel movable connecting rod front part (25), one end of the right novel movable connecting rod (31) passes through the center line C of the swing rod (32) and is assembled on the left connecting pin (26), the center line B of the hydraulic cylinder A (20) coincides with the center line E of the front part (23) of the left novel movable connecting rod, and the included angle between the central extension line F of the rear section of the rear part (25) of the left novel movable connecting rod and the component force PA is smaller than the included angle between the central extension line F of the rear section and the component force PB.
2. 2. The movable connecting rod large-volume diaphragm compressor according to claim 1, wherein a guide port of 50-65 degrees is formed at the opening of a new oil guide hole structure (34) on the support plate A (19).
3. 3. The high-capacity diaphragm compressor as claimed in claim 1, wherein the elastic sealing pad (18) is internally provided with an elastic element, and the periphery of the elastic element is wrapped with sealing material.

Description

Movable connecting rod large-volume diaphragm compressor Technical Field The invention relates to compressors, in particular to a movable connecting rod large-volume diaphragm compressor. Background Fig. 1 is a schematic diagram of a prior art diaphragm compressor drive configuration. As shown in fig. 1, the conventional diaphragm compressor mainly comprises a diaphragm 1, a cover plate 2, a support plate 3, a hydraulic cylinder 4, a piston 5, a piston pin 6, a partition plate 7, a sealing packing 8, a piston rod 9, a cross head 10, a cross head pin 11, a connecting rod 12, a crankshaft 13, a crankcase 14 and the like. When the diaphragm compressor works, the crankshaft 13 of the diaphragm compressor is driven by the power machine to rotate, the connecting rod 12 is driven by the crankshaft 13, the cross head 10 is driven by the cross head pin 11, the piston 5 is driven to reciprocate in the hydraulic cylinder 4 to compress and do work through the piston rod 9 and the piston pin 6, and the reaction force P generated by the compression work is transmitted to the crankshaft 13 of the compressor through the piston 5, the piston pin 6, the piston rod 9, the cross head 10, the cross head pin 11 and the connecting rod 12 to consume the power of the compressor. In the diaphragm compressor with the transmission structure, the crankshaft 13 of the diaphragm compressor bears the total reaction force P in the compression work process, and a large amount of energy is consumed. When the piston 5 compresses the liquid, the liquid enters the membrane cavity through the oil guide hole 15, and the reaction force P is increased by resistance at the opening of the oil guide hole 15, so that energy is wasted. Besides not energy conservation, the diaphragm compressor with the transmission structure has the advantages of complex product structure, multiple parts, high cost, difficult sealing, large leakage quantity and poor quality. The service life of the diaphragm compressor is seriously influenced, and the power consumption of the diaphragm compressor is increased, so that energy is wasted. The function of the diaphragm compressor cylinder is performed by the diaphragm chamber. The size of the membrane cavity volume is directly related to the working efficiency of the membrane compressor, and the membrane cavity volume is small, the working efficiency is low, and the membrane cavity volume is large, and the working efficiency is high. Increasing the diaphragm cavity volume of a diaphragm compressor is a critical technical problem. Since the periphery of the diaphragm 1 is fastened between the cover plate 2 and the support plate 3, the deflection deformation of the diaphragm 1 meets the requirement of the volumetric flow rate of the diaphragm compressor. However, the diaphragm 1 has a limited deformation amount, and the working efficiency of the diaphragm compressor is limited by a small amount of treated gas. How to improve the diaphragm cavity volume of the diaphragm compressor and improve the work efficiency is a great technical problem. Because the periphery of the diaphragm 1 is fastened between the cover plate 2 and the support plate 3, bending deformation damage occurs at the joint of the periphery of the diaphragm 1, the cover plate 2 and the support plate 3 in the repeated bending deformation process of the diaphragm 1, and the service life of the diaphragm compressor is seriously influenced. The lubrication condition at the cross pin 11 is bad and is difficult to avoid abrasion, and the accurate straightness of the movement of the piston rod 9 is affected. The fatigue crack accident of the screw thread of the front part of the piston rod 9 at the screw thread of the cross head 10 is more frequent, which seriously affects the service life of the compressor. Increasing the power consumption of the compressor wastes energy. Background art the present diaphragm compressor transmission structure shown in fig. 1 has the problems that the diaphragm compressor can consume a large amount of energy, the diaphragm compressor is not energy-saving, the product structure is complex, the cost is high, the quality is poor, the working efficiency is low, the diaphragm cavity volume is small, the diaphragm is damaged by bending deformation, the lubrication condition at the cross head pin is severe, the abrasion is difficult to stop, and the fatigue crack accident of the screw end at the front part of the piston rod at the screw thread of the cross head is frequent. These serious drawbacks and significant technical problems of the existing products seriously affect the use of diaphragm compressors. Aiming at the problems existing in the prior art, the invention aims to provide the movable connecting rod large-volume diaphragm compressor which has the advantages of unique product structure, advanced technology, large diaphragm cavity volume, durable diaphragm and great energy-saving effect. The movable connecting rod large-volume diaphr