CN201843745U - High-pressure gas pump - Google Patents

High-pressure gas pump Download PDF

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Publication number
CN201843745U
CN201843745U CN 201020571118 CN201020571118U CN201843745U CN 201843745 U CN201843745 U CN 201843745U CN 201020571118 CN201020571118 CN 201020571118 CN 201020571118 U CN201020571118 U CN 201020571118U CN 201843745 U CN201843745 U CN 201843745U
Authority
CN
China
Prior art keywords
hole
cylinder barrel
end cover
rear end
end cap
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.)
Expired - Fee Related
Application number
CN 201020571118
Other languages
Chinese (zh)
Inventor
邓文军
马权起
蔡忠明
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.)
Tianjin Seri Machinery Equipment Corp Ltd
Original Assignee
Tianjin Seri Machinery Equipment Corp 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 Tianjin Seri Machinery Equipment Corp Ltd filed Critical Tianjin Seri Machinery Equipment Corp Ltd
Priority to CN 201020571118 priority Critical patent/CN201843745U/en
Application granted granted Critical
Publication of CN201843745U publication Critical patent/CN201843745U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a high-pressure gas pump, which belongs to the field of gas pumps. The high-pressure gas pump comprises a front end cover, a middle end cover and a rear end cover. A front cylinder is arranged between the front end cover and the middle end cover and is connected with the front end cover and the rear end cover in a sealing way, a rear cylinder is arranged between the middle end cover and the rear end cover and is connected with the middle end cover and the rear end cover in a sealing way, the front end cover, the middle end cover and the rear end cover are connected fixedly, a piston is respectively arranged in the front cylinder and the rear cylinder and is connected with the inner wall of the corresponding cylinder in a sealing way, and the two pistons are connected fixedly through a connecting rod; the rear end cover is provided with an oil storage chamber on the side corresponding to the rear cylinder, and the oil storage chamber is communicated with an oil through hole on the rear end cover; the middle end cover is provided with a through hole which the connecting rod penetrates through, the through hole and the connecting rod are connected in a sealing way, and the middle end cover is provided with an oil through hole for communicating the rear cylinder with the outside and a gas through hole for communicating the front cylinder with the outside; and the front cover is provided with a high-pressure gas discharging mechanism and an air inflow mechanism. The high-pressure gas pump has a small size, a simple structure and low cost, can produce the required high-pressure gas, and can be used with any hydraulic station.

Description

A kind of high-pressure pump
Technical field
The utility model belongs to the air pump field, particularly relates to a kind of air pump that fluid pressure is converted into pressurized gas.
Background technique
It is a routine and important experiment that oil hydraulic cylinder is carried out Pressure testing, oil hydraulic cylinder needs the cylinder bar is sent back in the cylinder barrel after carrying out bulge test, current general employing hydraulic oil is as power source, hydraulic oil can satisfy the pressure requirement, remain in a large number in the cylinder barrel but have, cause hydraulic oil to consume in a large number, thereby cause the bulge test cost to increase.Pressurized gas are a kind of clean energy resourcies, can not produce the problem of polluting cylinder barrel, the pipeline pressurized air of workshop use at present, and the about 0.5 ~ 0.6MPa of pressure will promote the cylinder barrel diameter then needs 1 ~ 1.2MPa greater than the oil hydraulic cylinder cylinder bar of 100mm pressure.Therefore, the pressure that improves air need dispose High Pressure Air Compressor, takies large-area experiment place like this, increases experimental cost.
Summary of the invention
The utility model provides a kind of simple in structure for solving the technical problem that exists in the known technology, and is safe and reliable, easy for installation and can utilize the high-pressure pump that has experiment porch now.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of high-pressure pump, comprise front cover, middle end cap and rear end cover, between front cover and middle end cap, preceding cylinder barrel is set, between inner wall of cylinder and preceding, the middle end cap sealing configuration is set before described, the back cylinder barrel is set between middle end cap and rear end cover, described back inner wall of cylinder and in, between the rear end cover sealing configuration is set, front cover, middle end cap and rear end cover is coaxial fixedlys connected, in preceding cylinder barrel and back cylinder barrel a piston is set respectively, two-piston is fixedly connected by connecting rod; Be provided with shoe cream room with a back cylinder barrel corresponding side on rear end cover, this shoe cream room is communicated with oil-through hole on being arranged on rear end cover; Cover in middle-end and to be provided with the through hole that described connecting rod passes vertically, between this through-hole wall and the connecting rod sealing configuration is set, cover to be provided with in middle-end and be communicated with the inner and extraneous oil-through hole of back cylinder barrel, cover in middle-end and also be provided with the air passing hole that is communicated with extraneous and preceding cylinder barrel inside; Front cover is provided with the pressurized gas output mechanism and air flows into mechanism.
The utility model can also adopt following technical measures
Described front cover, middle end cap are fixedlyed connected by screw rod with rear end cover.
Sealing configuration between described end cap and the cylinder barrel is the O RunddichtringO; Sealing configuration comprises the y-type seal ring at the O RunddichtringO that is positioned at the piston both sides and piston middle part between described piston and the inner wall of cylinder; Sealing configuration is a y-type seal ring between described connecting rod and the through-hole wall.
The described shoe cream room that is arranged on the rear end cover is the cylindrical cavity coaxial with rear end cover, and described oil-through hole is arranged on cylindrical cavity radially on the vertical surface.
It is shoulder hole that described middle-end covers the through hole that the connecting rod of setting passes, and wherein adapts away from the aperture size of back cylinder barrel one end and the external diameter of connecting rod, and the size of the other end is greater than the connecting rod external diameter, and the oil-through hole that described middle-end covers setting is communicated with the big end of shoulder hole.
Described pressurized gas output mechanism comprises the ladder hole that is arranged on the front cover, the angle transition connects between the shoulder hole, wherein the size of an adjacent end with preceding cylinder barrel is less than the other end size, in shoulder hole, be disposed with steel ball, stage clip and pipe joint from inside to outside, by steel ball being pressed on the transitional surface of shoulder hole tightening pipe joint on the front cover.
The air that is provided with on the described front cover flows into mechanism and comprises shoulder hole disposed thereon, the angle transition connects between the shoulder hole, wherein the size of an adjacent end with preceding cylinder barrel is greater than the other end size, steel ball is set in shoulder hole, steel ball is pressed on the transitional surface between the shoulder hole by the high-pressure air in the preceding cylinder barrel, on front cover, be provided with in addition prevent steel ball enter before valve in the cylinder barrel.
The shoulder hole and the extraneous contact jaw that flow at described front cover air are provided with silencing apparatus.
The air passing hole and the extraneous contact jaw that cover setting in described middle-end are provided with silencing apparatus.
Advantage and the good effect that the utlity model has are: the cooperation of three end caps and former and later two cylinder barrels before, during and after the employing, form an oil storage space and a gas storage space, and simple and compact for structure, easy for installation; In two cylinder barrels, piston crank mechanism is set, by in, the oil-through hole that is provided with on the rear end cover links to each other with oil pipe on the experiment porch, just can realize easily that hydraulic pressure can be converted into pressurized gas, and is safe and reliable, with low cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
1-rear end cover among the figure; The 2-back piston; The 3-connecting rod; Cylinder barrel behind the 4-; End cap among the 5-; The 6-air passing hole; The 7-silencing apparatus; The 8-secondary piston; Cylinder barrel before the 9-; The 10-front cover; The 11-shoulder hole; The 12-valve; The 13-screw rod; The 14-steel ball; The 15-silencing apparatus; The 16-shoulder hole; The 17-steel ball; The 18-stage clip; The 19-pipe joint; The 20-shoulder hole; The 21-flowing hole; The 22-shoe cream room; The 23-flowing hole; 24(A, B, C, D)-sealing configuration.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, enumerate following examples now, and conjunction with figs. describes in detail of the present utility model as follows:
Consult Fig. 1, a kind of high-pressure pump, comprise front cover 10, middle end cap 5 and rear end cover 1, cylinder barrel 9 before between front cover 10 and middle end cap 5, being provided with, the bump sizes of the projection of front cover 10 and middle end cap 5 one ends equates, and be complementary the two ends of cylinder barrel 9 before two projectioies are embedded into respectively, cylinder barrel 9 axial and radial location between front cover 10 and middle end cap 5 before realizing with preceding cylinder barrel 9 inwall sizes.Back cylinder barrel 4 is set between middle end cap 5 and rear end cover 1, and the location of back cylinder barrel 4 is identical with the orientation type of aforementioned preceding cylinder barrel 9.Front cover 10, middle end cap 5 and rear end cover 1 are fixedlyed connected vertically, in the present embodiment, adopt several long bolt 13 that the three is fixedly connected, in addition, can also adopt other Placements, are connected respectively such as middle end cap 5 and front cover 10, rear end cover 1 etc.Connect by said fixing, between front cover 10, preceding cylinder barrel 9 and middle end cap 5, form enclosed space A, between middle end cap 5, back cylinder barrel 4 and rear end cover 1, form enclosed space B.A piston (secondary piston 8 and back piston 2) is set respectively in the cylinder barrel of above-mentioned front and back, two-piston is fixedly connected by connecting rod 3, the through hole that described connecting rod 3 passes also is set on middle end cap 5, in the present embodiment, through hole adopts the form of shoulder hole 20, cylinder barrel 9 before the small bore end of shoulder hole 20 is adjoining, and the size of aperture is complementary with the outside dimension of connecting rod 3, and cylinder barrel 4 behind the macropore termination neighbour.On middle end cap 5, be provided with the oil-through hole 21 that is communicated with the big nose end and the external world, except that the form that adopts shoulder hole, also can adopt other mode, for example, through hole is made the straight hole with connecting rod 3 external diameters coupling, and oil-through hole 21 is made inverted L shape, and it is inner and extraneous directly to be communicated with back cylinder barrel 4.In addition, on middle end cap 5, also be provided with the air passing hole 6 of the inverted L shape that is communicated with extraneous and preceding cylinder barrel 9.Position at rear end cover 1 adjoining back cylinder barrel 4 is provided with shoe cream room 22, shoe cream room 22 is cylindrical cavities coaxial with rear end cover 1 in the present embodiment, the radially vertical surface of cylindrical cavity is provided with and is communicated with extraneous oil-through hole 23, and this oil-through hole 23 also can be arranged on the face at any angle that is communicated with cylindrical cavity.Front cover 10 is provided with the high-pressure air output mechanism and ambient air flows into mechanism, in the present embodiment, the high-pressure air output mechanism comprises shoulder hole disposed thereon 16, the angle transition connects between the shoulder hole, wherein the size of an adjacent end with preceding cylinder barrel is less than the other end size, in shoulder hole, be disposed with steel ball 17, stage clip 18 and pipe joint 19 from inside to outside, wherein the diameter dimension of steel ball 17 is between macropore and aperture, by steel ball 17 being pressed on the transitional surface of shoulder hole tightening pipe joint 19 on the front cover; The ambient air that is provided with on the front cover 10 flows into mechanism and comprises shoulder hole disposed thereon 11, the angle transition connects between the shoulder hole 11, wherein with the size of preceding cylinder barrel 9 adjacent ends greater than the other end size, steel ball 14 is set in shoulder hole 11, steel ball 14 is pressed on the transitional surface between the shoulder hole by the high-pressure airs in the preceding cylinder barrel 9, on front cover 10, be provided with in addition prevent steel ball enter before valve 12 in the cylinder barrel, present embodiment adopts needle-valve, front cover 10 is provided with and the axial vertical valve opening of shoulder hole, needle-valve inserts this valve opening, just can prevent that the steel ball 14 in the inlet hole from entering in the preceding cylinder barrel 9.
Between above-mentioned front cover 10, middle end cap 5, rear end cover 1 and inner wall of cylinder sealing configuration is set, present embodiment adopts the O RunddichtringO; Mating part at connecting rod 3 and middle end cap 5 is provided with sealing configuration, and present embodiment adopts y-type seal ring; Sealing configuration also is set between inner wall of cylinder and piston, and present embodiment adopts multi-sealed, in the both sides of piston the O RunddichtringO is set, and at the piston middle part y-type seal ring is set.
The above embodiments can produce satisfactory pressurized gas, but because front cover 10 is provided with inlet hole 11, middle end cap 5 is provided with inlet hole 6, therefore in the process of work, produce excessive noise, air directly enters cylinder barrel inside by inlet hole simultaneously, the impurity infringement piston and the inner wall of cylinder that have, the sealing of inwall of back piston and cylinder barrel of working long hours reduces, and therefore, extraneous place is provided with silencing apparatus 15 in inlet hole 11 contacts, extraneous place is provided with silencing apparatus 7 in inlet hole 6 contacts, adopt said structure, can reduce noise filtered air simultaneously, prolong the working life of equipment.
The working principle of present embodiment: when back piston 2 contact rear end covers 1, gas among the A of space is in low-pressure state, connect the oil outlet tube and the oil-through hole on the rear end cover 1 23 of hydraulic test bench this moment, return tube is connected with the oil-through hole on the middle end cap 5 21, hydraulic oil enters in the shoe cream room 22 by the oil-through hole on the rear end cover 1 23, promoting piston crank mechanism moves towards front cover 10 directions, the pressure of gas increases gradually among the A of space, when reaching certain value, the steel ball 14 that the air of front cover 10 flows in the mechanism is pressed on the transitional surface of shoulder hole, the inflow of blocking-up ambient air, piston motion in the current cylinder barrel 9 is near time the front cover 10, the pressure of air has surpassed the pressure of 18 pairs of steel balls 17 of pressurized gas output mechanism medi-spring, steel ball leaves the fitting surface of shoulder hole, pressurized gas flow out from the gap location of steel ball 17 and transitional surface, outflow along with pressurized gas, the pressure of gas reduces gradually among the A of space, when this pressure during less than the pressure of spring 18, steel ball 17 in the output mechanism resets, steel ball 14 in the admission gear leaves the transitional surface of shoulder hole, connect ambient air, the selector valve action of control oil channel on the Laboratory Furniture at this moment, the oil pipe of end cap 5 in being connected to is converted into oil inlet pipe, and the oil inlet pipe on the rear end cover 1 is converted into return tube.Hydraulic oil promotes piston crank mechanism end cap 1 direction motion backwards by among the shoulder hole 20 inflow space B on the middle end cap 5, and the gas among the A of space constantly flows into, and when back piston 2 touched rear end cover 1, a work cycle was finished.Just can constantly provide required pressurized gas by the to-and-fro motion of piston crank mechanism in cylinder barrel for load.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.

Claims (9)

1. high-pressure pump, it is characterized in that: comprise front cover (10), middle end cap (5) and rear end cover (1), between front cover (10) and middle end cap (5), preceding cylinder barrel (9) is set, between described preceding cylinder barrel (9) inwall and the forward and backward end cap sealing configuration (24A) is set; Back cylinder barrel (4) is set between middle end cap (5) and rear end cover (1), described back cylinder barrel (4) inwall and in, sealing configuration (24B) is set between the rear end cover; Front cover (10), middle end cap (5) and coaxial the fixedlying connected of rear end cover (1); Piston (8) is set in preceding cylinder barrel (9), piston (2) is set in the back cylinder barrel (4), sealing configuration (24C) is set between the inwall of piston and cylinder barrel, two-piston is fixedly connected by connecting rod (3); Go up with the back corresponding side of cylinder barrel (4) at rear end cover (1) and to be provided with shoe cream room (22), this shoe cream room (22) is communicated with oil-through hole (23) on being arranged on rear end cover (1); The through hole that described connecting rod (3) passes is set on middle end cap (5) vertically, sealing configuration (24D) is set between described through-hole wall and the connecting rod (3), middle end cap (5) is provided with and is communicated with the inner and extraneous oil-through hole (21) of back cylinder barrel (4), also is provided with to be communicated with air passing hole (6) extraneous and that preceding cylinder barrel (9) is inner on middle end cap (5); Front cover (10) is provided with the pressurized gas output mechanism and air flows into mechanism.
2. according to the described high-pressure pump of claim 1, it is characterized in that: described front cover (10), middle end cap (5) and rear end cover (1) are fixedlyed connected by screw rod (13).
3. according to the described high-pressure pump of claim 1, it is characterized in that: described sealing configuration (24A, 24B) is the O RunddichtringO; Described sealing configuration (24C) comprises the y-type seal ring at the O RunddichtringO that is positioned at the piston both sides and piston middle part; Described sealing configuration (24D) is a y-type seal ring.
4. according to the described high-pressure pump of claim 1, it is characterized in that: the described shoe cream room (22) that is arranged on the rear end cover (1) is and the coaxial cylindrical cavity of rear end cover (1) that described oil-through hole (23) is arranged on the radially vertical surface of cylindrical cavity.
5. according to the described high-pressure pump of claim 1, it is characterized in that: the through hole that the connecting rod (3) that end cap (5) upward is provided with in described passes is shoulder hole (20), wherein adapt away from the aperture size of back cylinder barrel one end and the external diameter of connecting rod, the size of the other end is greater than the connecting rod external diameter, and described middle end cap (5) is gone up the oil-through hole (21) that is provided with and is communicated with the big end of shoulder hole.
6. according to the described high-pressure pump of claim 1, it is characterized in that: described pressurized gas output mechanism comprises the ladder hole (16) that is arranged on the front cover (10), the angle transition connects between the shoulder hole, wherein with the size of the adjacent end of preceding cylinder barrel (9) less than the other end size, in shoulder hole (16), be disposed with steel ball (17), stage clip (18) and pipe joint (19) from inside to outside, steel ball be pressed on the transitional surface of shoulder hole by on front cover (10), tightening pipe joint (19).
7. according to the described high-pressure pump of claim 1, its feature flows into mechanism and comprises shoulder hole disposed thereon (11) going up the air that is provided with: described front cover (10), the angle transition connects between the shoulder hole, wherein the size of an adjacent end with preceding cylinder barrel is greater than the other end size, steel ball (14) is set in shoulder hole, steel ball (14) is pressed on the transitional surface between the shoulder hole by the high-pressure air in the preceding cylinder barrel (9), also is provided with on front cover and prevents that steel ball from entering the valve (12) in the preceding cylinder barrel (10).
8. according to the described high-pressure pump of claim 7, it is characterized in that: silencing apparatus (15) is set at described shoulder hole (11) and extraneous contact jaw.
9. according to the arbitrary described high-pressure pump of claim 1-8, it is characterized in that: end cap in described (5) is gone up the air passing hole (6) that is provided with and with extraneous contact jaw silencing apparatus (7) is set.
CN 201020571118 2010-10-21 2010-10-21 High-pressure gas pump Expired - Fee Related CN201843745U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020571118 CN201843745U (en) 2010-10-21 2010-10-21 High-pressure gas pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020571118 CN201843745U (en) 2010-10-21 2010-10-21 High-pressure gas pump

Publications (1)

Publication Number Publication Date
CN201843745U true CN201843745U (en) 2011-05-25

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ID=44038637

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020571118 Expired - Fee Related CN201843745U (en) 2010-10-21 2010-10-21 High-pressure gas pump

Country Status (1)

Country Link
CN (1) CN201843745U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382275A (en) * 2016-11-23 2017-02-08 韶关市博仕乐液压机械制造有限公司 Hydraulic oil cylinder with built-in circulating oil paths and inclined supporting plate
CN106382274A (en) * 2016-11-23 2017-02-08 韶关市博仕乐液压机械制造有限公司 Hydraulic oil cylinder with built-in circulating oil paths and horizontal supporting plate
CN106438566A (en) * 2016-11-23 2017-02-22 韶关市博仕乐液压机械制造有限公司 Hydrocylinder with built-in circular oil-way

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382275A (en) * 2016-11-23 2017-02-08 韶关市博仕乐液压机械制造有限公司 Hydraulic oil cylinder with built-in circulating oil paths and inclined supporting plate
CN106382274A (en) * 2016-11-23 2017-02-08 韶关市博仕乐液压机械制造有限公司 Hydraulic oil cylinder with built-in circulating oil paths and horizontal supporting plate
CN106438566A (en) * 2016-11-23 2017-02-22 韶关市博仕乐液压机械制造有限公司 Hydrocylinder with built-in circular oil-way

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110525

Termination date: 20131021