CN104500363A - Plunger pump with lubricating system - Google Patents

Plunger pump with lubricating system Download PDF

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Publication number
CN104500363A
CN104500363A CN201410759573.2A CN201410759573A CN104500363A CN 104500363 A CN104500363 A CN 104500363A CN 201410759573 A CN201410759573 A CN 201410759573A CN 104500363 A CN104500363 A CN 104500363A
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China
Prior art keywords
plunger
oil
cavity
oil pipe
pump
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CN201410759573.2A
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CN104500363B (en
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魏国
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魏国
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Abstract

The invention relates to a plunger pump with a lubricating system. A lubricating oil gear pump is arranged in a lubricating oil tank at the bottom of a pump body; a driving gear is arranged on a crankshaft; the driving gear is meshed with a driven gear on the lubricating oil gear pump; an oil outlet of the lubricating oil gear pump is connected with an oil conveying pipeline in the inner wall of the pump body; the oil conveying pipeline is communicated with a bearing bush oil pipe; a crankshaft oil pipe is arranged in the crankshaft; the crankshaft oil pipe is connected with a crank toggle oil pipe in a crank toggle; first double-layer sealing rings are arranged in a connecting plate; a connecting plate lubricating cavity is formed between the first double-layer sealing rings; the connecting plate lubricating cavity is communicated with the oil conveying pipeline through a connecting plate oil pipe; an oil return pipeline is arranged at the connecting plate lubricating cavity in a communicating mode; an outlet of the oil return pipeline is communicated with an inner cavity in the bottom of a pump body; second double-layer sealing rings are arranged in a plunger cavity; a plunger cavity lubricating cavity is formed between the second double-layer sealing rings; the plunger cavity lubricating cavity is communicated with the oil conveying pipeline through a plunger cavity oil pipe; the plunger cavity lubricating cavity is also communicated with the oil return pipeline.

Description

There is the plunger pump of lubrication system
Technical field
The present invention relates to a kind of plunger pump, particularly a kind of plunger pump with lubrication system.
Background technique
Plunger pump is an important device of hydraulic system.It relies on plunger to-and-fro motion in cylinder body, makes the volume of seal operation cavity volume change to realize oil suction, force feed.Plunger pump has that rated pressure is high, compact structure, efficiency are high and the advantage such as Flow-rate adjustment is convenient, is widely used in the occasion that high pressure, large discharge and flow need to regulate, in such as hydraulic press, engineering machinery and boats and ships.But traditional plunger pump is not owing to relating to supporting lubrication system, therefore long-time, uninterrupted, high speed operation (as in petroleum production art) is needed once plunger pump, variety of problems will be produced because of friction between plunger and each parts of the pump housing, therefore need a kind of Novel plunger pump that can solve the problem now.
Summary of the invention
The present invention is the above-mentioned deficiency in order to solve existing for prior art, proposes a kind of structure simple, designs ingenious, can realize long-time, continual high speed operation, be particularly suitable for the plunger pump with lubrication system in petroleum production art.
Technical solution of the present invention is: a kind of plunger pump with lubrication system, comprise the pump housing 1, the bent axle 3 of bearing shell 2 rotational support is provided with in the bottom inner chamber of the pump housing 1, bent axle 3 is provided with crank throw 4, crank throw 4 with can the piston 5 of longitudinal movement in the pump housing 1 be connected, the top of piston 5 is provided with plunger 6, connecting plate 7 is disposed with above piston 5, suction chamber 8, plunger chamber 9 and water-supplying chamber 25, the top of plunger 6 is then arranged in plunger chamber 9, it is characterized in that: in the oil groove 10 bottom the described pump housing 1, be provided with lubricant oil gear pump 11, described bent axle 3 is provided with driving tooth 12, driving tooth 12 is meshed with the passive tooth 13 on lubricant oil gear pump 3, the oil outlet of lubricant oil gear pump 3 is connected with the pipeline road 14 be opened in the pump housing 1 inwall, pipeline road 14 is communicated with bearing shell oil pipe 15, the outlet of bearing shell oil pipe 15 is then positioned at the internal surface of bearing shell 2, bent axle oil pipe 16 is offered in bent axle 3, this bent axle oil pipe 16 is connected with the crank throw oil pipe 17 offered in crank throw 4, the outlet of crank throw oil pipe 17 is positioned at the outer surface of crank throw 4, the first double-layer seal ring 18 is provided with in described connecting plate 7, be connecting plate lubricating cavity 19 between first double-layer seal ring 18, connecting plate lubricating cavity 19 is connected with pipeline road 14 by connecting plate oil pipe 20, what be also communicated with connecting plate lubricating cavity 19 is provided with return line 21, intracavity inter-connection bottom the outlet of return line 21 and the pump housing 1, the second double-layer seal ring 22 is provided with in plunger chamber 9, be plunger cavity lubricating cavity 23 between second double-layer seal ring 22, plunger cavity lubricating cavity 23 is connected with pipeline road 14 by plunger cavity oil pipe 24, plunger cavity lubricating cavity 23 is also connected with return line 21.
Compared with the existing technology, tool has the following advantages in the present invention:
The plunger pump with lubrication system of this kind of structural type, its structure is simple, designs ingenious, rationally distributed.It does not have lubrication system for traditional plunger pump, therefore high strength cannot be realized, long-time continual high speed operation, the problem of the operating mode (as field of petroleum exploitation) of some specific demand cannot be met, design a kind of special plunger pump structure with lubrication system, between the bent axle of this pump and bearing shell, between the termination of crank throw and the connecting rod of piston base, lubricant oil is all had to be that it realizes lubrication between plunger and the pump body portion be in contact with it, therefore can long-time continual work, allow between its all parts and reach optimum Working, reduce the probability of component damage, and then extend its working life, and due to the existence of lubrication system, it can also carry out work under high-revolving condition, in unit time, water-outlet quantity is larger, energy-saving effect obviously (can reach 50%), and due to the significantly reduction of its frictional force, the power of its required motor used also reduces greatly, and then reduce overall cost of production.Therefore can say that it has possessed multiple advantage, be particularly suitable for applying in the art, its market prospects are very wide.
Accompanying drawing explanation
Fig. 1 is the plan view of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.As shown in Figure 1: a kind of plunger pump with lubrication system, comprise the pump housing 1, the bent axle 3 of bearing shell 2 rotational support is provided with in the bottom inner chamber of the pump housing 1, bent axle 3 is provided with crank throw 4, and crank throw 4 with can the piston 5 of longitudinal movement in the pump housing 1 be connected, the top of piston 5 is provided with plunger 6, is disposed with connecting plate 7, suction chamber 8, plunger chamber 9 and water-supplying chamber 25 above piston 5, and the top of above-mentioned plunger 6 is then arranged in plunger chamber 9; When bent axle 3 rotates, plunger 6 does longitudinal to-and-fro motion in the pump housing 1, and medium is entered in the pump housing 1 by suction chamber 8, and pumps out the pump housing 1 through after plunger chamber 9 from water-supplying chamber 25;
Lubricant oil gear pump 11 is provided with in oil groove 10 bottom the pump housing 1, bent axle 3 is provided with driving tooth 12, driving tooth 12 is meshed with the passive tooth 13 on lubricant oil gear pump 3, like this when bent axle 3 rotates, driving tooth 12 just can drive passive tooth 13 to rotate, and then drives lubricant oil gear pump 3 to start working; The oil outlet of lubricant oil gear pump 3 is connected with the pipeline road 14 be opened in the pump housing 1 inwall, and this pipeline road 14 is connected with plunger cavity oil pipe 24 respectively at bearing shell oil pipe 15, connecting plate oil pipe 20;
The outlet of bearing shell oil pipe 15 is positioned at the internal surface of bearing shell 2, offers bent axle oil pipe 16 in bent axle 3, and this bent axle oil pipe 16 is connected with the crank throw oil pipe 17 offered in crank throw 4, and the outlet of crank throw oil pipe 17 is positioned at the outer surface of crank throw 4; Such lubricant oil just can enter the surface of contact of bearing shell 2 and bent axle 3 through pipeline road 14, bearing shell oil pipe 15, can also enter the outer surface of crank throw 4, for these two parts of constantly carrying out sliding friction are lubricated through bent axle oil pipe 16, crank throw oil pipe 17; The lubricant oil completing lubrication work can directly drop onto in oil groove 10, comes back in the circulation of lubricant oil and goes;
The first double-layer seal ring 18 is provided with in connecting plate 7, first double-layer seal ring 18 is the two-layer seal ring be arranged in parallel, connecting plate lubricating cavity 19 is provided with between this two-layer seal ring, connecting plate lubricating cavity 19 is connected with pipeline road 14 by connecting plate oil pipe 20, what be also communicated with connecting plate lubricating cavity 19 is provided with return line 21, the intracavity inter-connection bottom the outlet of return line 21 and the pump housing 1; Such lubricant oil just can enter connecting plate lubricating cavity 19 through pipeline road 14, connecting plate oil pipe 20, and along with the motion of plunger 6 uniform application on the partial outer face of plunger 6, for the motion of plunger 6 realizes lubrication, this part lubricant oil is got back to by return line 21 in the inner chamber of the pump housing 1 again;
The second double-layer seal ring 22 is provided with in plunger chamber 9, second double-layer seal ring 22 is the two-layer seal ring be arranged in parallel, plunger cavity lubricating cavity 23 is provided with between this two-layer seal ring, plunger cavity lubricating cavity 23 is connected with pipeline road 14 by plunger cavity oil pipe 24, and plunger cavity lubricating cavity 23 is also connected with return line 21; Such lubricant oil just can enter plunger cavity lubricating cavity 23 through pipeline road 14, plunger cavity oil pipe 24, and along with the motion of plunger 6 uniform application on the partial outer face of plunger 6, for the motion of plunger 6 realizes lubrication, this part lubricant oil is got back to by return line 21 in the inner chamber of the pump housing 1 again.
In the process that the pump housing 1 works, between connecting rod between bent axle 3 and bearing shell 2, bottom the termination of crank throw 4 and piston 5, all have lubricant oil to be that it realizes lubricating between plunger 6 and the pump housing 1 part be in contact with it, therefore the pump housing of this kind of structure can realize long-time, continual high speed operation.

Claims (1)

1. one kind has the plunger pump of lubrication system, comprise the pump housing (1), the bent axle (3) of bearing shell (2) rotational support is provided with in the bottom inner chamber of the pump housing (1), bent axle (3) is provided with crank throw (4), crank throw (4) with can be connected by the piston (5) of longitudinal movement in the pump housing (1), the top of piston (5) is provided with plunger (6), connecting plate (7) is disposed with in the top of piston (5), suction chamber (8), plunger chamber (9) and water-supplying chamber (25), the top of plunger (6) is then arranged in plunger chamber (9), it is characterized in that: in the oil groove (10) of the described pump housing (1) bottom, be provided with lubricant oil gear pump (11), described bent axle (3) is provided with driving tooth (12), driving tooth (12) is meshed with the passive tooth (13) on lubricant oil gear pump (3), the oil outlet of lubricant oil gear pump (3) is connected with the pipeline road (14) be opened in the pump housing (1) inwall, pipeline road (14) is communicated with bearing shell oil pipe (15), the outlet of bearing shell oil pipe (15) is then positioned at the internal surface of bearing shell (2), bent axle oil pipe (16) is offered in bent axle (3), this bent axle oil pipe (16) is connected with the crank throw oil pipe (17) offered in crank throw (4), the outlet of crank throw oil pipe (17) is positioned at the outer surface of crank throw (4), the first double-layer seal ring (18) is provided with in described connecting plate (7), be connecting plate lubricating cavity (19) between first double-layer seal ring (18), connecting plate lubricating cavity (19) is connected with pipeline road (14) by connecting plate oil pipe (20), what be also communicated with connecting plate lubricating cavity (19) is provided with return line (21), the intracavity inter-connection of the outlet of return line (21) and the pump housing (1) bottom, the second double-layer seal ring (22) is provided with in plunger chamber (9), be plunger cavity lubricating cavity (23) between second double-layer seal ring (22), plunger cavity lubricating cavity (23) is connected with pipeline road (14) by plunger cavity oil pipe (24), plunger cavity lubricating cavity (23) is also connected with return line (21).
CN201410759573.2A 2014-12-12 2014-12-12 There is the plunger displacement pump of lubricating system Active CN104500363B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410759573.2A CN104500363B (en) 2014-12-12 2014-12-12 There is the plunger displacement pump of lubricating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410759573.2A CN104500363B (en) 2014-12-12 2014-12-12 There is the plunger displacement pump of lubricating system

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CN104500363A true CN104500363A (en) 2015-04-08
CN104500363B CN104500363B (en) 2016-07-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156155A (en) * 2019-12-29 2020-05-15 陕西航天动力高科技股份有限公司 Prevent extravagant seal structure of diaphragm pump fluid

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616786A (en) * 1969-06-10 1971-11-02 Hatz Motoren Internal combustion engine
FR2264197A1 (en) * 1974-03-11 1975-10-10 Bosch Gmbh Robert Single cylinder air compressor for brakes - has oil channel between tow bushes communicating with bush inside big end
US4090719A (en) * 1977-03-28 1978-05-23 Vapor Corporation Packing assembly
JPS5572670A (en) * 1978-11-24 1980-05-31 Maruyama Seisakusho:Kk Sealing mechanism for reciprocating pump
JPS603414A (en) * 1983-06-20 1985-01-09 Yanmar Diesel Engine Co Ltd Cylinder block for compact vertical diesel engine
JPS6487853A (en) * 1987-09-30 1989-03-31 Toshiba Corp Stirling engine
JPH0643277U (en) * 1992-11-10 1994-06-07 株式会社丸山製作所 Plunger pump seal lubrication and cooling device
CN201747563U (en) * 2010-06-09 2011-02-16 钱星飞 Oil pump type oil tank of air compressor
CN204402783U (en) * 2014-12-12 2015-06-17 魏国 There is the plunger pump of lubrication system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616786A (en) * 1969-06-10 1971-11-02 Hatz Motoren Internal combustion engine
FR2264197A1 (en) * 1974-03-11 1975-10-10 Bosch Gmbh Robert Single cylinder air compressor for brakes - has oil channel between tow bushes communicating with bush inside big end
US4090719A (en) * 1977-03-28 1978-05-23 Vapor Corporation Packing assembly
JPS5572670A (en) * 1978-11-24 1980-05-31 Maruyama Seisakusho:Kk Sealing mechanism for reciprocating pump
JPS603414A (en) * 1983-06-20 1985-01-09 Yanmar Diesel Engine Co Ltd Cylinder block for compact vertical diesel engine
JPS6487853A (en) * 1987-09-30 1989-03-31 Toshiba Corp Stirling engine
JPH0643277U (en) * 1992-11-10 1994-06-07 株式会社丸山製作所 Plunger pump seal lubrication and cooling device
CN201747563U (en) * 2010-06-09 2011-02-16 钱星飞 Oil pump type oil tank of air compressor
CN204402783U (en) * 2014-12-12 2015-06-17 魏国 There is the plunger pump of lubrication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156155A (en) * 2019-12-29 2020-05-15 陕西航天动力高科技股份有限公司 Prevent extravagant seal structure of diaphragm pump fluid

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