Multi-cylinder pump body structure and compressor
A multi-cylinder pump and compressor technology, applied in the field of compressors, can solve the problems of low cylinder efficiency, high scrap rate, increased production and manufacturing costs, etc., and achieve the effects of improving efficiency, high work efficiency and stable operation.
Pending Publication Date: 2018-12-18
ZHUHAI LANDA COMPRESSOR +1
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Problems solved by technology
[0002] Existing multi-cylinder rotary compressors all use a crankshaft to connect the motor part and the compression cylinder mechanism. This crankshaft structure will have the following problems: 1. When the displacements of multiple cylinders vary greatly, the reliability Under the requirements, the cylinder with large displacement and heavy load needs a thick crankshaft diameter. Due to the limitation of the shaft diameter of the crankshaft, the bore diameter of a cylinder with a smaller displacement cannot be reduced, resulting in low efficiency of the small displacement cylinder, which in turn affects the compressor. 2. When the number of cylinders increases, the more eccentric cams on the crankshaft, the more complicated the processing technology of the crankshaft, the difficulty of processing, and the high scrap rate, resulting in increased manufacturing costs, and the working stability of the compressor and the crankshaft the worse the reliability
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[0022] Such as figure 1 As shown, the multi-cylinder pump body structure proposed by the present invention includes: multiple working chambers 1 and several crankshafts 2, each crankshaft 2 is provided with at least one eccentric cam 21, and each eccentric cam 21 is equipped with a working chamber 1, The eccentric cam 21 and the working chamber 1 are in one-to-one correspondence. The working chamber 1 has a working volume, and the working volume here generally refers to the remaining volume between the working chamber 1 and the rollers 5 inside.
[0023] During the design process of the multi-cylinder pump body structure, when more than one eccentric cam 21 is provided on a single crankshaft 2, the working chamber 1 configured on the crankshaft 2 has a minimum working volume Vmin and a maximum working volume Vmax, which satisfy Vmin / Vmax≥0.1, so that the working chamber corresponding to the crankshaft 2 has high working efficiency and stable operation. In order to reduce th...
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The invention discloses a multi-cylinder pump body structure and a compressor. The multi-cylinder pump body structure comprises a plurality of work cavities and a plurality of bent axles. Each bent axle is provided with at least one eccentric cam. Each eccentric cam is provided with one work cavity with the working volume. When more than one eccentric cam is arranged on each bent axle, the specific value of the minimum working volume to the maximum working volume in the work cavities formed in the bent axles is larger than or equal to 0.1. By means of the multi-cylinder pump body structure andthe compressor, the efficiency and the running stability of the compressor can be improved.
Description
technical field [0001] The invention relates to the technical field of compressors, in particular to a multi-cylinder pump body structure and a compressor. Background technique [0002] Existing multi-cylinder rotary compressors all use a crankshaft to connect the motor part and the compression cylinder mechanism. This crankshaft structure will have the following problems: 1. When the displacements of multiple cylinders vary greatly, the reliability Under the requirements, the cylinder with large displacement and heavy load needs a thick crankshaft diameter. Due to the limitation of the shaft diameter of the crankshaft, the bore diameter of a cylinder with a smaller displacement cannot be reduced, resulting in low efficiency of the small displacement cylinder, which in turn affects the compressor. 2. When the number of cylinders increases, the more eccentric cams on the crankshaft, the more complicated the processing technology of the crankshaft, the difficulty of processing...
Claims
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Login to View More IPC IPC(8): F04C18/344F04C23/00F04C29/00
CPCF04C18/3447F04C23/001F04C29/00
Inventor 王勇周瑜余少波霍喜军
Owner ZHUHAI LANDA COMPRESSOR