Parallel synchronous hydraulic motor driving system and melt gear pump with same

A technology of hydraulic motor and drive system, applied in rotary piston/oscillating piston pump components, rotary piston/oscillating piston pump combination, liquid fuel engine, etc. Achieve the effect of reducing uniaxial load and reducing tooth surface meshing force

Pending Publication Date: 2022-01-04
郑州沃华机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a parallel synchronous hydraulic motor drive system and a melt gear pump with it, so as to solve the problem of gear asynchronous jamming that may exist in the prior art due to the difference in speed of the dual drive gear shafts

Method used

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  • Parallel synchronous hydraulic motor driving system and melt gear pump with same
  • Parallel synchronous hydraulic motor driving system and melt gear pump with same
  • Parallel synchronous hydraulic motor driving system and melt gear pump with same

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many ways other than those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the basic implementation disclosed below.

[0027] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other e...

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Abstract

The invention belongs to the field of melt gear pumps, and particularly relates to a parallel synchronous hydraulic motor driving system and a melt gear pump with the same. The melt gear pump comprises a melt pump body with a first gear shaft and a second gear shaft, the melt pump body is driven by parallel hydraulic motor driving systems, and the driving systems comprise hydraulic pumps and hydraulic motors. The hydraulic motors are connected with corresponding driving shafts in a one-to-one correspondence mode to drive the two motors to operate at a constant speed, the two motors drive the two shafts of the gear pump respectively to achieve dual-drive operation of the gear pump, the hydraulic pumps are driven by the motors to pump out high-pressure hydraulic oil, and the high-pressure hydraulic oil enters inlets of the two hydraulic motors through pump outlet pipelines. Synchronous driving can be achieved through the parallel homologous driving motors, the torque can be matched in real time according to the pressure flow in the pipeline in a self-adaptive mode, the single-shaft loads are reduced, the tooth surface meshing force during single-shaft driving is reduced, the service life of a gear is prolonged, and meshing noise is reduced.

Description

technical field [0001] The invention belongs to the field of melt gear pumps, and in particular relates to a parallel synchronous hydraulic motor drive system and a melt gear pump with the same. Background technique [0002] The main function of the melt pump is to pressurize the high-temperature plastic melt from the extruder, stabilize the pressure, and send the flow to the extruder head stably. Its ability to stabilize melt pressure and flow is superior to various types of extruders. There are gear sets that mesh with each other in the pump chamber to realize material transportation. Traditional gear pumps use the active rotating shaft to drive the driven rotating shaft to run. This driving method has the problems of high friction and short service life of the gears. In order to To enable the melt pump to stably and effectively transport high-temperature and high-pressure polymer melts, in the prior art, the patent document with application number 2019101665378 provides ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/18F04C11/00F04C13/00F04C15/00
CPCF04C2/18F04C11/00F04C13/002F04C15/0057F04C15/008
Inventor 李福勇周小强
Owner 郑州沃华机械有限公司
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