Constant flow direction cycloid lubrication pump
A lubricating pump and cycloid technology, applied in the field of lubricating pumps, can solve the problems of gear pumps and plunger pumps with large pulsation, unstable oil pressure, and loud noise, and achieve the effects of stable flow, guaranteed orientation, and low noise
Inactive Publication Date: 2013-02-06
江苏江进泵业有限公司
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Problems solved by technology
[0002] At present, lubricating pumps are generally used in mechanical and electrical products such as machine tools and automobiles. Existing lubricating pumps usually include gear pumps, plunger pumps and cycloidal lubricating pumps. Gear pumps and plunger pumps have large pulsations and unstable oil pressure. , high noise and other disadvantages, the oil inlet and outlet of the gear pump will also change with the change of the main shaft rotation direction, for electromechanical equipment that requires a fixed flow of oil supply and high noise requirements, it often cannot meet the demand
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[0017] like figure 1 , figure 2 and image 3 As shown, the constant flow cycloid lubrication pump includes pump body 1, eccentric sleeve 2, outer rotor 3 and inner rotor 4, eccentric sleeve 2 is set in pump body 1, outer rotor 3 and inner rotor 4 are set in eccentric sleeve 2 , the outer rotor 3 and the inner rotor 4 are respectively composed of a pair of conjugate cycloidal gears, the inner rotor 4 is connected with the driving shaft 7 and rotates under the drive of the driving shaft 7, and the outer rotor 3 is connected with the inner rotor 4 under the action of the inner rotor 4 The rotor 4 rotates at a differential speed in the same direction.
[0018] In this embodiment, the inner rotor 4 is connected to the drive shaft 7 , a C-shaped pin groove 5 is provided between the eccentric sleeve 2 and the pump body 1 , and a positioning pin 6 is arranged in the pin groove 5 . When the drive shaft 7 rotates in the reverse direction, the outer rotor 3 rotates in the reverse dir...
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The invention relates to a constant flow direction cycloid lubrication pump which comprises a pump body, an eccentric sleeve, an outer rotor and an inner rotor, wherein the outer rotor and the inner rotor are respectively formed by a pair of conjugated cycloid gears; the inner rotor is connected with a drive shaft and rotated under the drive of the drive shaft, and the outer rotor is subjected to differential rotation in the same direction as the inner rotor under the action of the rotor; a section of C-shaped pin slot is arranged between the eccentric sleeve and the pump body, and a positioning pin is arranged in the pin slot; when the drive shaft is reversedly rotated, the outer rotor is reversedly rotated along with the inner rotor; the eccentric sleeve is reversedly rotated under the drive of the outer rotor; and after the eccentric sleeve is rotated by 180 degrees, the eccentric sleeve is positioned through the positioning pin. Relative to the prior art, through changing the position and the eccentric distance of the eccentric sleeve, an oil suction area and an oil press area are relatively fixed, and the flow direction of lubricating liquid is not changed along with the rotation direction of the drive shaft; and the constant flow direction cycloid lubrication pump has the advantages of compact structure, light weight, convenience in mounting, good self suction performance, high efficiency, stable flow, low noise and realization of oil supply directing property.
Description
technical field [0001] The invention relates to a lubricating pump, in particular to a constant-flow cycloid lubricating pump composed of conjugate cycloid gears. Background technique [0002] At present, lubricating pumps are generally used in mechanical and electrical products such as machine tools and automobiles. Existing lubricating pumps usually include gear pumps, plunger pumps and cycloidal lubricating pumps. Gear pumps and plunger pumps have large pulsations and unstable oil pressure. , high noise and other shortcomings, the oil inlet and outlet of the gear pump will also change with the change of the direction of rotation of the main shaft. For electromechanical equipment that requires a fixed flow of oil supply and high noise requirements, it often cannot meet the demand. Contents of the invention [0003] Aiming at the shortcomings of the above existing lubricating pumps, the purpose of the present invention is to provide a swing pump that adopts a conjugate cy...
Claims
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Inventor 刘凤兴
Owner 江苏江进泵业有限公司