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Stroke control mechanism of metering pump

A stroke adjustment and metering pump technology, which is applied in pumps, pump control, mechanical equipment, etc., can solve problems such as low reliability, wear, and difficult parts processing, and achieves easy wear, simple processing technology, and good axial positioning Effect

Inactive Publication Date: 2006-07-05
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of difficult parts processing, easy wear and low reliability in the prior art, the invention provides a stroke adjustment mechanism of a metering pump with simple parts processing technology, good stability and low wear

Method used

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  • Stroke control mechanism of metering pump
  • Stroke control mechanism of metering pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] refer to figure 1 , 2 , the stroke adjustment mechanism of the metering pump, including the adjustment rod 4, the L-shaped shaft 5 fixedly connected to the adjustment rod 4 below the adjustment rod, the L-shaped shaft 5 is provided with a chute 13, and the chute 13 A pin sleeve 7 is installed inside, and a latch 8 is inserted in the pin sleeve 7. The L-shaped shaft 5 is covered with a shaft sleeve 6, and the L-shaped shaft sleeve 6 is supported on the bearing 12. Two grooves 14 are symmetrically provided on the outer circumference of the shaft sleeve 6, and an eccentric wheel 3 with a gap is set on the shaft sleeve 6 through the gap and the groove 14 on the shaft sleeve, and the latch 8 Pass through the groove on the bushing and the eccentric wheel 3; the bushing 6 is connected with the worm 11 and the worm wheel 10, the eccentric wheel 3 is connected with the connecting rod 1, and there is a connection between the connecting rod and the eccentric wheel Bushing 2.

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Embodiment 2

[0015] refer to figure 1 , 2 , a protruding support ring 9 is arranged outside the shaft sleeve, and the connecting rod 1 is arranged on the support ring 9 . The support ring 9 is used to support the connecting rod 1 . The remaining implementation modes are the same as the first embodiment. During the working process of the connecting rod 1, due to the drop of its own weight, the gap between the connecting rod 1 and the bushing 2 is uneven, the lubrication is poor, and serious problems such as partial wear and easy failure occur. After the support ring is installed, the wear of the connecting rod and the connecting rod bushing can be improved. Significant improvement.

Embodiment 3

[0017] refer to figure 1 , 2 , The bearing supporting the bushing is an angular contact ball bearing. The remaining implementation modes are the same as the first embodiment. The axial positioning of the angular contact ball bearing is good, which can prevent the axial movement beyond the design range, ensure the position of the worm 10 and the worm wheel 11, and prevent the eccentric wear of the worm 10 and the worm wheel 11 due to excessive axial movement , Improve product reliability.

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Abstract

A stroke regulating mechanism of metering pump consists of worm wheel, worm gear, regulating stem and eccentric wheel. It is featured as connecting eccentric wheel with link lever and setting bush between them, firm ¿C joining L form shaft with regulating stem below the regulating stem to use L form shaft to regulate stroke of metering pump.

Description

(1) Technical field [0001] The invention relates to a stroke adjustment mechanism of a metering pump. (2) Background technology [0002] The metering pump is an indispensable general-purpose machine that realizes flow regulation and accurate metering according to the requirements of the technological process. Its main features are high measurement accuracy, the flow rate can be adjusted according to process requirements during operation, wide application range, high discharge pressure, and stuffing box seal. At present, the stroke adjustment mechanism of the domestic metering pump is mainly an N-shaft structure, but the processing technology of the N-type crankshaft is complicated, and it needs to be processed by a special machine tool to ensure its accuracy, and the processing cost is high; Faults such as eccentric wear and fatigue fracture failure affect the service life and reliability of the pump. (3) Contents of the invention [0003] In order to overcome the disadv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/12F04B13/00
Inventor 张生昌寿涛周小皮
Owner ZHEJIANG UNIV OF TECH
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