A crankshaft mechanism of a natural gas compressor
A compressor, natural gas technology, applied in the direction of machines/engines, mechanical equipment, liquid variable capacity machinery, etc., can solve the problems of increasing manufacturing difficulty, manufacturing cost, increase, and body volume, and reduce the axial The effect of size, radial size reduction
Active Publication Date: 2019-01-11
BEIJING PROVA ENERGY DEV
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Problems solved by technology
However, with the increase in the number of cylinder blocks of this type of compressor, the number of connecting rods connected to the crankshaft increases, and the connecting rods are distributed along the axial direction of the crankshaft. Therefore, the more the number of connecting rods, the larger the size of the crankshaft and crankcase. Larger, the volume of the body will inevitably increase, increasing the difficulty and cost of manufacturing
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[0018] The present invention will be described in more detail below with reference to the accompanying drawings.
[0019] like Figure 1-Figure 5 As shown, the present invention provides a crankshaft mechanism of a natural gas compressor, which includes a crankshaft, and the crankshaft includes a rotating shaft 1 and an eccentric shaft 2 sheathed on the rotating shaft 1 . The eccentric shaft 2 is covered with two rotating bearings 3 , and the eccentric shaft 2 between the two rotating bearings 3 is provided with a first bearing washer 4 . A shaft sleeve 5 is sleeved on the outer circumference of the two rotating bearings 3, and the outer circumference of the shaft sleeve 5 is provided with a guide groove 50 with a T-shaped cross-section. The guide groove 50 is provided with a piston slider 6, and the top of the piston slider 6 is connected to the piston. The universal head connection of rod 7. The piston slider 6 can be three or four, distributed in the guide groove 50 at eq...
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The invention provides a natural gas compressor crankshaft mechanism which comprises a crankshaft. The crankshaft comprises a rotating shaft and an eccentric shaft sleeving the rotating shaft; the eccentric shaft is sleeved with two rotating bearings, and the eccentric shaft between the two rotating bearings is sleeved with a first bearing gasket; peripheries of the two rotating bearings are sleeved with a shaft sleeve, and the peripheral face of the shaft sleeve is provided with a guide groove with the cross section being of a T shape; the guide groove is internally provided with piston sliding blocks, and the tops of the piston sliding blocks are connected with a universal joint of a piston rod. A plurality of air cylinders can be arranged on the same plane, the axial size of the crankshaft cannot be increased along with increase of the number of cylinder bodies, and axial sizes of a crankshaft and a crankshaft box of a multi-cylinder compressor can be reduced effectively. The piston rod and the crankshaft are connected without a connection rod, and thus the radial size of the crankshaft box is also reduced.
Description
technical field [0001] The invention relates to a transmission mechanism, in particular to a crankshaft mechanism of a natural gas compressor. Background technique [0002] At present, the traditional reciprocating natural gas compressor mainly uses the crankshaft to drive the connecting rod, and the connecting rod drives the piston to reciprocate to realize gas compression. However, with the increase in the number of cylinder blocks of this type of compressor, the number of connecting rods connected to the crankshaft increases, and the connecting rods are distributed along the axial direction of the crankshaft. Therefore, the more the number of connecting rods, the larger the size of the crankshaft and crankcase. Larger, the body size will inevitably increase, increasing the difficulty and cost of manufacturing. Contents of the invention [0003] The object of the present invention is to provide a crankshaft mechanism of a natural gas compressor, which has a small volume...
Claims
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IPC IPC(8): F04B39/00
CPCF04B39/0094
Inventor 侯普东
Owner BEIJING PROVA ENERGY DEV