CN103089563A - Two-cylinder hydraulic pump - Google Patents

Two-cylinder hydraulic pump Download PDF

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Publication number
CN103089563A
CN103089563A CN2013100253301A CN201310025330A CN103089563A CN 103089563 A CN103089563 A CN 103089563A CN 2013100253301 A CN2013100253301 A CN 2013100253301A CN 201310025330 A CN201310025330 A CN 201310025330A CN 103089563 A CN103089563 A CN 103089563A
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CN
China
Prior art keywords
cylinder
piston
pump
double
hydraulic pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013100253301A
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Chinese (zh)
Inventor
张传明
刘丛斌
俞泷兴
柏云飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huainan Mining Group Co Ltd
Original Assignee
Huainan Mining Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huainan Mining Group Co Ltd filed Critical Huainan Mining Group Co Ltd
Priority to CN2013100253301A priority Critical patent/CN103089563A/en
Publication of CN103089563A publication Critical patent/CN103089563A/en
Pending legal-status Critical Current

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Abstract

The invention provides a two-cylinder hydraulic pump, and the two-cylinder hydraulic pump includes a hydraulic cylinder and two piston cylinders. The hydraulic cylinder and the piston cylinders are oppositely fixed. Piston rods of the two piston cylinders are connected in a coaxial mode. A grouting mouth and a pulp-sucking mouth which are communicated with inner cavities of the piston cylinders are formed in the piston cylinders, and the piston rods of the hydraulic cylinder are parallel to pistons of the piston rods. The piston rods of the hydraulic cylinder are fixedly connected with the piston rods of the piston cylinder through a dynamic connection rod. The two-cylinder hydraulic pump has the advantages of being simple, reasonable and compact in structure, overcomes the disadvantages of the electric grouting pump or pneumatic pump, and has the advantages of being simple structure and large in grouting pressure.

Description

The double-cylinder hydraulic pump
Technical field
The present invention relates to the oil hydraulic pump technology, relate in particular to a kind of double-cylinder hydraulic pump.
Background technique
In recent years, for guaranteeing Safety of Coal Mine Production, the extraction borehole that mining construction is a large amount of, need after drilling construction in time to drilling and sealing, adopting the cement injection sealing of hole is the most frequently used method, what cement injection was commonly used is electronic grouting pump and Pneumatic grouting pump, and the pressure of hole-sealing grouting requires generally can not be less than 4MPa.
There are the following problems at least for electronic grouting pump and Pneumatic grouting pump: electronic grouting pump uses comparatively general at present under coal mine.But before using electronic grouting pump, must first carry out laying of cable, need prepare simultaneously the accessorys such as switch, and the volume of electronic grouting pump be larger, move workload larger, in the situation that during larger frequent use of layer-through drilling construction amount, very inconvenient.The grouting pressure of pneumatic pump slip casting maximum is 2~3MPa, and its working pressure can not satisfy the demand of the on-the-spot hole-sealing grouting pressure in down-hole far away, and Pneumatic grouting pump in use, because of the restriction of its structure, easily damages, and amount of maintenance is larger.
Summary of the invention
The object of the invention is to,, grouting pressure limited problem complicated for above-mentioned motor-drive pump and pneumatic pump structure propose a kind of double-cylinder hydraulic pump, the advantage simple with implementation structure, that grouting pressure is large.
For achieving the above object, the technical solution used in the present invention is: a kind of double-cylinder hydraulic pump, comprise oil hydraulic cylinder and two piston cylinders, described oil hydraulic cylinder is relative with piston cylinder fixing, the coaxial connection of the piston rod of described two piston cylinders offers the grouting port and the pulp absorbing hole that are communicated with the piston cylinder inner chamber on described piston cylinder; The piston rod of described oil hydraulic cylinder is parallel with the piston of piston cylinder, and the piston rod of described oil hydraulic cylinder is fixedly connected with by dynamic link with the piston rod of piston cylinder.
Further, described oil hydraulic cylinder is oil cylinder.
Further, described oil cylinder is connected with drilling machine oil pump.
Further, described grouting port and/or pulp absorbing hole are provided with safety check.
Further, described safety check is ball check valve.
Further, described pulp absorbing hole and/or grouting port are provided with porose disc near a side of piston cylinder inner chamber.
Further, described grouting port and/or pulp absorbing hole are arranged on piston cylinder the end away from piston.
Further, described oil hydraulic pump is fixed on the piston cylinder sidewall.
Take transport of water mud as example, the working principle of double-cylinder hydraulic pump of the present invention is as follows: the piston rod that the piston rod of described oil hydraulic cylinder drives described piston cylinder moves vertically, a piston cylinder (first piston cylinder) internal pressure is increased, and the cement slurry in the first piston cylinder is discharged piston cylinder from grouting port; Another piston cylinder (the second piston cylinder) internal pressure reduces, and cement slurry is in the pulp absorbing hole sucker cylinder of the second piston cylinder.During to end of travel, piston rod is motion round about vertically when piston movement, and the second piston cylinder internal pressure is increased, and the cement slurry in the second piston cylinder is discharged piston cylinder from grouting port; The first piston in-cylinder pressure reduces, and cement slurry is in the pulp absorbing hole sucker cylinder of first piston cylinder, and the piston rod that the piston rod of described oil hydraulic cylinder drives piston cylinder moves so repeatedly, realizes the continuous transportation of cement slurry.
Double-cylinder hydraulic pump of the present invention compare with existing electronic grouting pump or pneumatic pump have advantages of simple in structure, easy to use; The oil hydraulic cylinder of double-cylinder hydraulic pump of the present invention can be take drilling machine oil pump as power, has guaranteed grouting pressure (can up to 10MPa), can satisfy the needs of transport of water mud fully, has greatly improved working efficiency.And double-cylinder hydraulic pump structure of the present invention is simple, without accessory, uses, carrying is light, not fragile, saved maintenance cost and human resources.The alternation of two piston cylinders has in addition realized the continuous transportation of cement slurry.
Description of drawings
Fig. 1 is the described double-cylinder hydraulic pump structure of embodiment schematic diagram;
Fig. 2 is the plan view of Fig. 1.
Embodiment
Embodiment
Fig. 1 is the described double-cylinder hydraulic pump structure of embodiment schematic diagram; Fig. 2 is the plan view of Fig. 1.
The invention discloses a kind of double-cylinder hydraulic pump, be used for to mine extraction borehole injected water mud.This double-cylinder hydraulic pump concrete structure as depicted in figs. 1 and 2, comprise oil hydraulic cylinder 3 and two piston cylinders, be provided with tubing interface 9 on this oil hydraulic cylinder 3, tubing interface 9 is connected with drilling machine oil pump, for giving oil hydraulic power, adopts the oil cylinder of drilling machine oil pump need not separately acquire hydraulic system on the one hand, the oil cylinder power of drilling machine oil pump is large on the other hand, larger grouting pressure can be provided, be appreciated that the present embodiment also can adopt the oil hydraulic cylinder of other kinds
Two piston cylinders are respectively first piston cylinder 12 and the second piston cylinder 22, oil hydraulic cylinder 3 is fixed on the sidewall of first piston cylinder 12, make oil hydraulic cylinder 3 relative fixing with first piston cylinder 12 and the second piston cylinder 22, the first piston bar 11 of first piston cylinder be connected the second coaxial connection of piston rod 21 of piston cylinder, the end away from piston on first piston cylinder 12 offers the first grouting port 15 and the first pulp absorbing hole 16 that is communicated with first piston cylinder 12 inner chambers; An end away from piston on the second piston cylinder 22 offers the second grouting port 25 and the second pulp absorbing hole 26 that is communicated with the second piston cylinder 22 inner chambers.The first grouting port 15 and the second grouting port 25 all are communicated with grouting pipeline.The first grouting port 15, the second grouting port 25, the first pulp absorbing hole 16 and the second pulp absorbing hole 26 are provided with ball check valve 7, prevent that the cement slurry that sucks and export from refluxing.The first pulp absorbing hole 16 is provided with porose disc 8 near a side of first piston cylinder 12 inner chambers; The second pulp absorbing hole 26 also is provided with porose disc 8 near a side of the second piston cylinder 22 inner chambers, and arranging of porose disc 8 can guarantee that ball check valve can not stop midge or slip casting.Described first piston cylinder 12 and the second piston cylinder 22 outsides also are covered with protective housing.
The piston rod of oil hydraulic cylinder 3 is parallel with the piston of two piston cylinders, and the piston rod of oil hydraulic cylinder 3 is fixedly connected with by dynamic link 4 with the piston rod of piston cylinder, with being synchronized with the movement of the piston rod of the piston rod that guarantees oil hydraulic cylinder 3 and piston cylinder.
Working principle: the piston rod that the piston rod of described oil hydraulic cylinder 3 drives piston cylinders by dynamic link 4 move vertically (moving right as shown in Figure 1), first piston cylinder 12 internal pressures are increased, and the cement slurry in first piston cylinder 12 is discharged first piston cylinder 12 from the first grouting port 15; The second piston cylinder 22 internal pressures reduce, and cement slurry sucks in the second piston cylinder 22 from the second pulp absorbing hole 26 of the second piston cylinder 22.During to end of travel, piston rod is motion (as shown in Figure 1 to left movement) round about vertically when piston movement, and the second piston cylinder 22 internal pressures are increased, and the cement slurry in the second piston cylinder 22 is discharged the second piston cylinders from the second grouting port 25; First piston cylinder 12 internal pressures reduce, and cement slurry sucks in first piston cylinder 12 from the pulp absorbing hole of first piston cylinder 12, and the piston rod that the piston rod of described oil hydraulic cylinder drives piston cylinder moves so repeatedly, realizes the continuous transportation of cement slurry.
The present invention is not limited to the described double-cylinder hydraulic pump of above-described embodiment, and the change of the change of piston cylinder size or shape, safety check kind is all within protection scope of the present invention.
It should be noted that at last: above each embodiment is not intended to limit only in order to technological scheme of the present invention to be described; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technological scheme.

Claims (8)

1. double-cylinder hydraulic pump, it is characterized in that, comprise oil hydraulic cylinder and two piston cylinders, described oil hydraulic cylinder is relative with piston cylinder fixing, the coaxial connection of the piston rod of described two piston cylinders offers the grouting port and the pulp absorbing hole that are communicated with the piston cylinder inner chamber on described piston cylinder; The piston rod of described oil hydraulic cylinder is parallel with the piston of piston cylinder, and the piston rod of described oil hydraulic cylinder is fixedly connected with by dynamic link with the piston rod of piston cylinder.
2. double-cylinder hydraulic pump according to claim 1, is characterized in that, described oil hydraulic cylinder is oil cylinder.
3. double-cylinder hydraulic pump according to claim 2, is characterized in that, described oil cylinder is connected with drilling machine oil pump.
4. double-cylinder hydraulic pump according to claim 1, is characterized in that, described grouting port and/or pulp absorbing hole are provided with safety check.
5. double-cylinder hydraulic pump according to claim 4, is characterized in that, described safety check is ball check valve.
6. according to claim 1 or 4 described double-cylinder hydraulic pumps, is characterized in that, described pulp absorbing hole and/or grouting port are provided with porose disc near a side of piston cylinder inner chamber.
7. according to claim 1 or 4 described double-cylinder hydraulic pumps, is characterized in that, described grouting port and/or pulp absorbing hole are arranged on piston cylinder the end away from piston.
8. double-cylinder hydraulic pump according to claim 1, is characterized in that, described oil hydraulic pump is fixed on the piston cylinder sidewall.
CN2013100253301A 2013-01-23 2013-01-23 Two-cylinder hydraulic pump Pending CN103089563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013100253301A CN103089563A (en) 2013-01-23 2013-01-23 Two-cylinder hydraulic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013100253301A CN103089563A (en) 2013-01-23 2013-01-23 Two-cylinder hydraulic pump

Publications (1)

Publication Number Publication Date
CN103089563A true CN103089563A (en) 2013-05-08

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CN2013100253301A Pending CN103089563A (en) 2013-01-23 2013-01-23 Two-cylinder hydraulic pump

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105172513A (en) * 2014-06-11 2015-12-23 株式会社万都 Active suspension apparatus for vehicle and pump applied thereto
CN110327767A (en) * 2019-07-15 2019-10-15 新疆金禾山能源科技有限公司 A kind of denitrfying agent spraying system of flue gas denitrification equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2152095Y (en) * 1991-10-08 1994-01-05 新疆克拉玛依双环实业开发公司 Horizontal double piston single function two-way hydraulic mud pump
CN2156308Y (en) * 1993-05-14 1994-02-16 魏德华 High-pressure pulp feeding pump
US20090053074A1 (en) * 2007-08-24 2009-02-26 Matthew Babicki Positive displacement pump and method of use thereof
CN201730780U (en) * 2010-06-18 2011-02-02 宝鸡石油机械有限责任公司 Hydraulically driven difunctional multi-cylinder slurry pump
CN102094780A (en) * 2011-01-21 2011-06-15 晋中开发区宏光实业有限公司 Hydraulic slurry pump
CN102777373A (en) * 2012-07-10 2012-11-14 镇江长城注浆设备有限公司 Double-liquid synchronous grouting pump
CN203081670U (en) * 2013-01-23 2013-07-24 淮南矿业(集团)有限责任公司 Double-cylinder hydraulic pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2152095Y (en) * 1991-10-08 1994-01-05 新疆克拉玛依双环实业开发公司 Horizontal double piston single function two-way hydraulic mud pump
CN2156308Y (en) * 1993-05-14 1994-02-16 魏德华 High-pressure pulp feeding pump
US20090053074A1 (en) * 2007-08-24 2009-02-26 Matthew Babicki Positive displacement pump and method of use thereof
CN201730780U (en) * 2010-06-18 2011-02-02 宝鸡石油机械有限责任公司 Hydraulically driven difunctional multi-cylinder slurry pump
CN102094780A (en) * 2011-01-21 2011-06-15 晋中开发区宏光实业有限公司 Hydraulic slurry pump
CN102777373A (en) * 2012-07-10 2012-11-14 镇江长城注浆设备有限公司 Double-liquid synchronous grouting pump
CN203081670U (en) * 2013-01-23 2013-07-24 淮南矿业(集团)有限责任公司 Double-cylinder hydraulic pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105172513A (en) * 2014-06-11 2015-12-23 株式会社万都 Active suspension apparatus for vehicle and pump applied thereto
CN110327767A (en) * 2019-07-15 2019-10-15 新疆金禾山能源科技有限公司 A kind of denitrfying agent spraying system of flue gas denitrification equipment

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Application publication date: 20130508

C02 Deemed withdrawal of patent application after publication (patent law 2001)