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Hydraulic slurry pump

A mud pump and hydraulic technology, which is applied in the field of mud pumps, can solve problems such as waste of energy, large output pulses, and instability, and achieve the effects of large output energy, stable output pulses, and reliable operation

Inactive Publication Date: 2010-06-02
李星宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, hydraulically driven reciprocating mud pumps have been widely used. This kind of mud pump basically works in single and double hydraulic cylinders. Their common disadvantage is that the output pulse is large and unstable.
Another three-cylinder hydraulic pump has also been released, but its disadvantage is that it does not make good use of the idle stroke of the oil cylinder during the reciprocating motion, thus wasting too much energy, and the reliability of the three-cylinder regular reciprocating motion not yet fully resolved

Method used

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Embodiment Construction

[0011] See figure 1 , figure 2 , the hydraulic mud pump consists of 4 oil cylinders Y1, Y2, Y3, Y4 and 4 drainage plungers 21 connected thereto, motor 1, oil pump 2, manual reversing valve 3, first electro-hydraulic reversing valve 4, the first 2 Electro-hydraulic reversing valve 5, overflow valve 6, pressure reducing valve 7, connection seat 22, pump head valve assembly 23, soft connection ball head 18, soft connection gland 20, proximity switches a, b, c, proximity Switch contact 19, one-way valve 13 etc. are made up. Oil cylinder Y1, Y2, Y3, Y4 is made up of piston assembly 9, oil cylinder tube 15, oil cylinder end cover 11, oil cylinder guide sleeve 17 etc.

[0012] Four oil cylinders Y1, Y2, Y3, Y4 form two sets of oil cylinder combinations, among which oil cylinders Y1, Y2 are the first oil cylinder combination, oil cylinders Y3, Y4 are the second oil cylinder combination, and each oil cylinder Y1, Y2, Y3, Y4 is equipped with The rod end oil chamber 8 and the rod end...

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Abstract

The invention discloses a hydraulic slurry pump, comprising two groups or more than two groups of oil cylinder combinations, each oil cylinder combination consists of two oil cylinders, an oil chamberof the rod end and an oil chamber of the rodless end of the two oil cylinders are respectively communicated to form a series oil duct of the rod end and a series oil duct of the rodless rod, pistonsof each oil cylinder are respectively connected with drainage plungers to form moving parts of the oil cylinders, the series oil duct of the rod end or the series oil duct of the rodless rod is provided with reversing valves; the moving part of one of the oil cylinders is provided with a proximity switch contact, and a proximity switch for controlling each reversing valve is provided correspondingly with the proximity switch contact; and a one-way complementary oil passage is arranged between an oil inlet and the corresponding oil cavity and between an oil outlet and the corresponding oil cavity. The hydraulic slurry pump can sufficiently make use of idle strokes of the oil cylinders to allow reliable operation, stable output pulse and large output energy of the hydraulic slurry pump, andthe utilization ratio of discharge capacity of the hydraulic system can reach 100 percent.

Description

technical field [0001] The invention belongs to mud pumps, in particular to a mud pump driven by a hydraulic oil cylinder. Background technique [0002] At present, hydraulically driven reciprocating mud pumps have been widely used. This kind of mud pump basically works in single and double hydraulic cylinders. Their common disadvantage is that the output pulse is large and unstable. Another three-cylinder hydraulic pump has also been released, but its disadvantage is that it does not make good use of the idle stroke of the oil cylinder during the reciprocating motion, thus wasting too much energy, and the reliability of the three-cylinder regular reciprocating motion It has not been completely resolved. Contents of the invention [0003] The object of the present invention is to provide a hydraulic mud pump with reliable operation, stable output pulse, high displacement utilization rate of hydraulic system and large output energy. [0004] The technical solution to real...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B15/02F04B9/109F04B53/14
Inventor 李星宇
Owner 李星宇