CN205895514U - To pressing formula axial plunger pump - Google Patents

To pressing formula axial plunger pump Download PDF

Info

Publication number
CN205895514U
CN205895514U CN201620639876.5U CN201620639876U CN205895514U CN 205895514 U CN205895514 U CN 205895514U CN 201620639876 U CN201620639876 U CN 201620639876U CN 205895514 U CN205895514 U CN 205895514U
Authority
CN
China
Prior art keywords
plunger
pump
prop cock
cock
prop
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
CN201620639876.5U
Other languages
Chinese (zh)
Inventor
冯永忠
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.)
Chongqing Industry And Mechanical And Electrical Technology Co Ltd
Original Assignee
Chongqing Industry And Mechanical And Electrical Technology 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 Chongqing Industry And Mechanical And Electrical Technology Co Ltd filed Critical Chongqing Industry And Mechanical And Electrical Technology Co Ltd
Priority to CN201620639876.5U priority Critical patent/CN205895514U/en
Application granted granted Critical
Publication of CN205895514U publication Critical patent/CN205895514U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a to pressing formula axial plunger pump, including the pump case, go up the pump cover, lower pump cover, the upper prop cock body, the lower prop cock body, a plunger, main shaft and sloping cam plate, the upper prop cock body is with the setting of lower prop cock body symmetry and lie in the pump case, upper prop cock body and lower prop cock body are all established on the main shaft through the bearing housing, it sets up and docks with the outer end of upper prop cock body and lower prop cock body respectively to go up pump cover and lower pump cover symmetry, the plunger includes that sloping cam plate construction section and symmetry set up in the plunger rod at sloping cam plate construction section both ends, sloping cam plate installation period number between upper prop cock body and lower prop cock body and with the sloping cam plate joint, the plunger rod at both ends is located the pressure cylinder of upper prop cock body and lower prop cock body respectively. The utility model relates to a to pressing formula axial plunger pump, the sound construction is reliable, and the yawing force that produces during the compression is shared by two sections plunger rods, makes the atress of plunger obtain very big improvement, and be difficult for droing between sloping cam plate and the plunger, in line check valve, the check valve that produces oil dispose in addition, and messenger pump body structure compactness, manufacturing convenience, use are reliably.

Description

A kind of opposite-compacting type axial plunger pump
Technical field
This utility model belongs to plunger pump technique field, specifically, is related to a kind of opposite-compacting type axial plunger pump.
Background technology
Axial plunger pump be by multiple plungers configure on the circumference of a common cylinder body, and make its plunger centrage and Cylinder center line is parallel.When cylinder body rotates, by certain mechanism enable plunger cylinder body plunger in the hole do relatively past Multiple motion, realizes the function of oil suction and oil extraction by oil distribution mechanism.
The axial plunger pump commonly used at present generally comprises valve plate, cylinder body, plunger, main shaft and swash plate, wherein swash plate and joining Food tray maintains static, and main shaft rotates, thus driving cylinder body to rotate together with the plunger in cylinder body.The bulb end of plunger is provided with Piston shoes, piston shoes are externally provided with the return plate rotating together with plunger, piston shoes, are pushed away by steel ball using cylinder body as the central spring supporting Pressure return plate, piston shoes are pressed on swash plate return plate, make piston shoes bottom keep sealing.When cylinder body rotates, intake side plunger By central spring, steel ball and return plate, piston shoes are pressed in swash surfaces and slide and oil suction, oil extraction lateral column plug relies on swash plate strong System pushes back and oil extraction.Because piston shoes are adjacent in swash surfaces, plunger makees reciprocal fortune with cylinder body while rotating in cylinder body Dynamic.During main shaft rotates a circle, each piston reciprocation moves once, completes an oil suction and oil extraction.In said structure, Need in cylinder body to arrange return facilities to complete oil-absorbing process, the complex structure of such cylinder body, running is loaded down with trivial details.
In addition, existing axial plunger pump commonly uses, and the life-span is shorter, especially with the occasion that condition is poor, using the longevity Life is shorter normally to be required it is impossible to meet.Plunger moves in plunger case, stress concentration to be produced it is difficult to formed film lubrication, Plunger wear is larger, causes pump to lose efficacy soon.
Utility model content
For solving above technical problem, the purpose of this utility model is to provide a kind of opposite-compacting type axial plunger pump, structure Solid and reliable, the side force producing during compression is shared by two sections of plunger rods, so that the stress of plunger is greatly improved, and abrasion is significantly Reduce;And pump body structure is compact, easily manufactured, using reliable.
This utility model purpose is achieved in that a kind of opposite-compacting type axial plunger pump, and it is critical only that: inclusion pump case, Upper pump cover, lower pump cover, upper prop cock body, lower prop cock body, plunger, main shaft and fixation are set in the swash plate on main shaft, described upper plug Body and lower prop cock body are symmetrical arranged and are located in pump case, and this upper prop cock body and lower prop cock body are all set in described main shaft by bearing On, described upper pump cover is symmetrical arranged with lower pump cover and is docked with the outer end of upper prop cock body and lower prop cock body respectively, described plunger bag Include the swash plate construction section at middle part and be located at swash plate construction section two ends symmetrically arranged plunger rod, described swash plate construction section is located at institute State between upper prop cock body and lower prop cock body and with swash plate clamping, the described plunger rod at two ends be located at respectively described upper prop cock body and under In the pressure cylinder of plunger body.
When swash plate promotes plunger upward and downward, plunger rod can be acted on by side force, and adopts said structure, side force There are two plunger rod shareds at two ends, eliminate stress concentration so that plunger rod stress significantly reduces, greatly reduce mill Damage, improve the service life of plunger displacement pump.
On the upside of the inwall of above-mentioned swash plate construction section and swash plate Access Division, it is all provided between the inwall of this swash plate construction section and downside There is rotary hemispherical, and by described rotary hemispherical by described swash plate construction section and swash plate clamping.Using said structure, swash plate passes through Rotary hemispherical promotes plunger upward and downward.
It is provided with cushion blocking between above-mentioned rotary hemispherical and described swash plate construction section inwall.Using said structure, prevent from rotating Hemisphere carries out hard contact, thus protecting rotary hemispherical injury-free with the inwall of plunger sloping plate construction section.
It is provided with the wear-resistant pad of the relative slip with swash plate between above-mentioned rotary hemispherical and swash plate Access Division.Using said structure, Reduce the abrasion of rotary hemispherical.
The outer end of above-mentioned plunger rod is provided with floating plunger, and this floating plunger is connected by elastic link.Using said structure, Floating plunger can not acted on by side force during floating plunger work, abrasion is less, even if post with radial floating relative to plunger rod Stopper rod has worn and torn, and pump remains to normal work, and the normal operation of pump has obtained ensureing further.
The semicircle orifice that medium oil inlet passage intersected with medium oil inlet passage is had on above-mentioned lower pump cover, is located at medium oil-feed The cannelure of passage outer ring, the side wall of this lower pump cover has medium oil-out, and this medium oil-out is connected with described cannelure, institute State semicircle in the hole and in line check valve is installed, one group of oil outlet one-way valve is installed in described cannelure, this cannelure passes through flow Plate is connected through oil outlet one-way valve with the pressure cylinder of lower prop cock body;On described lower prop cock body, corresponding described semicircle orifice has and pressure cylinder The Oil Guide circular hole communicating.Using said structure, during pump operation, medium enters through medium oil inlet passage, in the oil-feed through semicircle orifice Check valve, to oil guiding hole, enters back into pressure cylinder, is then pressed into cannelure, is discharged by oil outlet one-way valve and medium oil-out.
Above-mentioned upper pump cover has identical structure with lower pump cover, and described upper prop cock body has identical structure, institute with lower prop cock body State pump cover connection corresponding with upper prop cock body.The medium oil inlet passage of described lower pump cover can open up passage and communicate with the external world, and then This plunger displacement pump can achieve two ends synchronous transport.Above-mentioned upper pump cover is set on main shaft by medium oil inlet passage, and by machinery Sealing member seals, and the medium oil inlet passage of described lower pump cover is stepped, and its big footpath passage is intersected with described semicircle orifice.
Above-mentioned upper pump cover or be directly set on described main shaft by mechanical sealing member, on this lower surface of pump cover and with institute State upper prop cock body to dock, and block the pressure cylinder of described upper prop cock body, the pressure cylinder of this upper prop cock body passes through through hole and upper plug The collar bush apertured of body communicates.Using said structure, upper pump cover and lower pump cover have different structure, and upper pump cover is directly by upper plug Body blocks, and only realizes lower end and conveys.
Beneficial effect:
A kind of this utility model opposite-compacting type axial plunger pump, significantly reduces the side force acting on plunger rod, significantly Reduce the abrasion of plunger, improve the service life of pump, leaned on by rotary hemispherical, wear-resistant pad and swash plate in the bottom of plunger Connect, both enabled, with face Contact Transmission, to make difficult for drop-off between plunger and swash plate again, sound construction is reliable, by oil-in list To control the flow direction of fluid media (medium) to valve, oil outlet one-way valve, the stain resistance of pump can be improved, meanwhile, take a kind of new cloth Put mode, make the compact conformation of pump, also can achieve two ends synchronous transport, also can convey independent one end, easily manufactured, using reliability Scope is wider, in hgher efficiency.
Brief description
Fig. 1 is the structural representation of this utility model embodiment 1;
Fig. 2 is the structural representation of this utility model embodiment 2;
Fig. 3 is the structural representation of lower prop cock body in Fig. 1 and Fig. 2;
Fig. 4 is a-a broken line sectional view in Fig. 3;
Fig. 5 is the structural representation of lower pump cover in Fig. 1 and Fig. 2;
Fig. 6 is b-b broken line sectional view in Fig. 5;
Fig. 7 is the c-c sectional view of Fig. 5 medium oil-out;
Fig. 8 is the structural representation of plunger in Fig. 1 and Fig. 2;
Wherein 1 is pump case, 2 is upper pump cover, 3a is matter oil inlet passage, 3b is semicircle orifice, 3b1 is in line check valve, 3c is Cannelure, 3c1 are oil outlet one-way valve, 3d is medium oil-out, 3 is lower pump cover, 4 is upper prop cock body, 5 is lower prop cock body, 6 is post Plug, 6a are swash plate construction section, 6b is plunger rod, 7 is main shaft, 7a is bearing, 8 is swash plate, 9 is rotary hemispherical, 10 is cushion blocking, 11 is wear-resistant pad, 12 is floating plunger, 13 is port plate, 14 is pressure cylinder, 15 is Oil Guide circular hole, 16 is mechanical sealing member.
Specific embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1: a kind of opposite-compacting type axial plunger pump, by pump case 1, upper pump cover 2, lower pump cover 3, upper prop cock body 4, lower prop The swash plate 8 that cock body 5, plunger 6, main shaft 7 and fixation are set on main shaft 7 forms, and described upper prop cock body 4 is symmetrical with lower prop cock body 5 Arrange and be located in pump case 1, this upper prop cock body 4 and lower prop cock body 5 are all set on described main shaft 7 by bearing 7a, described on Pump cover 2 is symmetrical arranged with lower pump cover 3, and docks with the outer end of upper prop cock body 4 and lower prop cock body 5 respectively, as shown in figs. 1 and 8, institute State plunger 6 by the swash plate construction section 6a at middle part and to be located at swash plate construction section 6a two ends symmetrically arranged plunger rod 6b and form, institute State swash plate construction section 6a to be located between described upper prop cock body 4 and lower prop cock body 5, the inwall of described swash plate construction section 6a and swash plate 8 On the upside of Access Division, between the inwall of this swash plate construction section 6a and downside, it is equipped with rotary hemispherical 9, and pass through described rotary hemispherical 9 By described swash plate construction section 6a and swash plate 8 clamping.It is provided with vibration damping between described rotary hemispherical 9 and described swash plate construction section 6a inwall Pad 10.It is provided with the wear-resistant pad 11 of the relative slip with swash plate 8 between described rotary hemispherical 9 and swash plate 8 Access Division.The described post at two ends Stopper rod 6b is located in described upper prop cock body 4 and the pressure cylinder 14 of lower prop cock body 5 respectively.The outer end of described plunger rod 6b is provided with floating Plunger 12, this floating plunger 12 is connected with plunger rod 6b by elastic link.
As shown in Fig. 1 and 5 and 6 and 7, described upper pump cover 2 and lower pump cover 3 all have medium oil inlet passage 3a and medium Semicircle orifice 3b, the cannelure 3c positioned at medium oil inlet passage 3a outer ring that oil inlet passage 3a intersects, described upper pump cover 2 passes through medium Oil inlet passage 3a is set on main shaft 7, and is sealed by mechanical sealing member 16, and the medium oil inlet passage 3a of described lower pump cover 3 is in Stepped, its big footpath passage is intersected with described semicircle orifice 3b.It is fuel-displaced that the side wall of described upper pump cover 2 and lower pump cover 3 all has medium Mouth 3d, this medium oil-out 3d is connected with described cannelure 3c, is provided with line check valve 3b1 in described semicircle orifice 3b, described One group of oil outlet one-way valve 3c1 is installed in cannelure 3c, as shown in Fig. 1 and 3 and 4, this cannelure 3c passes through port plate 13 and phase The upper prop cock body 4 answered or the pressure cylinder 14 of lower prop cock body 5 are connected through oil outlet one-way valve 3c1;Described upper prop cock body 4 and lower prop cock body On 5, corresponding described semicircle orifice 3b has the Oil Guide circular hole 15 communicating with pressure cylinder 14.
Embodiment 2:
As shown in Figure 2: a kind of opposite-compacting type axial plunger pump, by pump case 1, upper pump cover 2, lower pump cover 3, upper prop cock body 4, lower prop The swash plate 8 that cock body 5, plunger 6, main shaft 7 and fixation are set on main shaft 7 forms, and described upper prop cock body 4 is symmetrical with lower prop cock body 5 Arrange and be located in pump case 1, this upper prop cock body 4 and lower prop cock body 5 are all set on described main shaft 7 by bearing 7a, described on Pump cover 2 is symmetrical arranged with lower pump cover 3, and docks with the outer end of upper prop cock body 4 and lower prop cock body 5 respectively, as shown in Figures 2 and 8, institute State plunger 6 by the swash plate construction section 6a at middle part and to be located at swash plate construction section 6a two ends symmetrically arranged plunger rod 6b and form, institute State swash plate construction section 6a to be located between described upper prop cock body 4 and lower prop cock body 5, the inwall of described swash plate construction section 6a and swash plate 8 On the upside of Access Division, between the inwall of this swash plate construction section 6a and downside, it is equipped with rotary hemispherical 9, and pass through described rotary hemispherical 9 By described swash plate construction section 6a and swash plate 8 clamping.It is provided with vibration damping between described rotary hemispherical 9 and described swash plate construction section 6a inwall Pad 10.It is provided with the wear-resistant pad 11 of the relative slip with swash plate 8 between described rotary hemispherical 9 and swash plate 8 Access Division.The described post at two ends Stopper rod 6b is located in described upper prop cock body 4 and the pressure cylinder 14 of lower prop cock body 5 respectively.The outer end of described plunger rod 6b is provided with floating Plunger 12, this floating plunger 12 is connected with plunger rod 6b by elastic link.
As shown in Fig. 2 and 5 and 6 and 7, described upper pump cover 2 is set on main shaft 7 by mechanical sealing member 16, pump cover on this Lower surface and dock with described upper prop cock body 4, and block the pressure cylinder 14 of described upper prop cock body 4, the pressure of this upper prop cock body 4 Cylinder 14 is communicated with the collar bush apertured of upper prop cock body 4 by through hole 4a.Have on described lower pump cover 3 medium oil inlet passage 3a and Semicircle orifice 3b, the cannelure 3c positioned at medium oil inlet passage 3a outer ring that medium oil inlet passage 3a intersects, Jie of described lower pump cover 3 Oil inlet passage 3a is stepped for matter, and its big footpath passage is intersected with described semicircle orifice 3b.The side wall of described lower pump cover 3 has medium and goes out Hydraulic fluid port 3d, this medium oil-out 3d is connected with described cannelure 3c, is provided with line check valve 3b1, institute in described semicircle orifice 3b State and one group of oil outlet one-way valve 3c1 be installed in cannelure 3c, as shown in Fig. 2 and 3 and 4, this cannelure 3c pass through port plate 13 with The pressure cylinder 14 of lower prop cock body 5 is connected through oil outlet one-way valve 3c1;On described lower prop cock body 5 corresponding described semicircle orifice 3b have with The Oil Guide circular hole 15 that pressure cylinder 14 communicates.
Finally it should be noted that foregoing description is only preferred embodiment of the present utility model, the common skill of this area Art personnel, under enlightenment of the present utility model, without prejudice on the premise of this utility model objective and claim, can make Represent as multiple types, such conversion each falls within protection domain of the present utility model.

Claims (9)

1. a kind of opposite-compacting type axial plunger pump it is characterised in that: include pump case (1), upper pump cover (2), lower pump cover (3), upper plug Body (4), lower prop cock body (5), plunger (6), main shaft (7) and fixation are set in the swash plate (8) on main shaft (7), described upper prop cock body (4) it is symmetrical arranged with lower prop cock body (5) and is located in pump case (1), this upper prop cock body (4) and lower prop cock body (5) are all by bearing (7a) be set on described main shaft (7), described upper pump cover (2) and lower pump cover (3) are symmetrical arranged, and respectively with upper prop cock body (4) Dock with the outer end of lower prop cock body (5), described plunger (6) includes the swash plate construction section (6a) at middle part and is located at swash plate construction section (6a) two ends symmetrically arranged plunger rod (6b), described swash plate construction section (6a) is located at described upper prop cock body (4) and lower plunger Between body (5), and with swash plate (8) clamping, the described plunger rod (6b) at two ends is located at described upper prop cock body (4) and lower plunger respectively In the pressure cylinder (14) of body (5).
2. a kind of opposite-compacting type axial plunger pump according to claim 1 it is characterised in that: described swash plate construction section (6a) On the upside of inwall and swash plate (8) Access Division, between the inwall of this swash plate construction section (6a) and downside, it is equipped with rotary hemispherical (9), and By described rotary hemispherical (9) by described swash plate construction section (6a) and swash plate (8) clamping.
3. opposite-compacting type axial plunger pump according to claim 2 it is characterised in that: described rotary hemispherical (9) with described tiltedly It is provided with cushion blocking (10) between disk construction section (6a) inwall.
4. a kind of opposite-compacting type axial plunger pump according to claim 3 it is characterised in that: described rotary hemispherical (9) with tiltedly It is provided with the wear-resistant pad (11) of slip relative with swash plate (8) between disk (8) Access Division.
5. the opposite-compacting type axial plunger pump according to claim 1 or 2 or 3 or 4 it is characterised in that: described plunger rod (6b) Outer end be provided with floating plunger (12), this floating plunger (12) is connected with plunger rod (6b) by elastic link.
6. a kind of opposite-compacting type axial plunger pump according to claim 5 it is characterised in that: have on described lower pump cover (3) Semicircle orifice (3b) that medium oil inlet passage (3a) is intersected with medium oil inlet passage (3a), it is located at medium oil inlet passage (3a) outer ring Cannelure (3c), the side wall of this lower pump cover (3) has medium oil-out (3d), this medium oil-out (3d) and described cannelure (3c) connect, in line check valve (3b1) is installed in described semicircle orifice (3b), be provided with described cannelure (3c) one group fuel-displaced Check valve (3c1), this cannelure (3c) passes through port plate (13) with the pressure cylinder (14) of lower prop cock body (5) through oil outlet one-way valve (3c1) it is connected;The upper corresponding described semicircle orifice (3b) of described lower prop cock body (5) has the Oil Guide circular hole communicating with pressure cylinder (14) (15).
7. a kind of opposite-compacting type axial plunger pump according to claim 6 it is characterised in that: described upper pump cover (2) and lower pump Lid (3) has an identical structure, and described upper prop cock body (4) and lower prop cock body (5) have an identical structure, described upper pump cover (2) with upper Plunger body (4) is corresponding to be connected.
8. a kind of opposite-compacting type axial plunger pump according to claim 7 it is characterised in that: described upper pump cover (2) pass through be situated between Matter oil inlet passage (3a) is set on main shaft (7), and is sealed by mechanical sealing member (16), and the medium of described lower pump cover (3) enters Oily passage (3a) is stepped, and its big footpath passage is intersected with described semicircle orifice (3b).
9. a kind of opposite-compacting type axial plunger pump according to claim 5 it is characterised in that: described upper pump cover (2) or directly Be set on described main shaft (7) by mechanical sealing member (16), on this lower surface of pump cover (2) and with described upper prop cock body (4) Docking, and block the pressure cylinder (14) of described upper prop cock body (4), the pressure cylinder (14) of this upper prop cock body (4) passes through through hole (4a) Communicate with the collar bush apertured of upper prop cock body (4).
CN201620639876.5U 2016-06-24 2016-06-24 To pressing formula axial plunger pump Expired - Fee Related CN205895514U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620639876.5U CN205895514U (en) 2016-06-24 2016-06-24 To pressing formula axial plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620639876.5U CN205895514U (en) 2016-06-24 2016-06-24 To pressing formula axial plunger pump

Publications (1)

Publication Number Publication Date
CN205895514U true CN205895514U (en) 2017-01-18

Family

ID=57769235

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620639876.5U Expired - Fee Related CN205895514U (en) 2016-06-24 2016-06-24 To pressing formula axial plunger pump

Country Status (1)

Country Link
CN (1) CN205895514U (en)

Similar Documents

Publication Publication Date Title
CN2900863Y (en) Automatic compensating plunger seal device for well drilling pump
CN104358664B (en) A kind of end face oil distributing without axial force biserial radial plunger pump
CN205895515U (en) Two dimension awl gyro wheel piston pump
CN205938482U (en) Liposuction device
CN205895514U (en) To pressing formula axial plunger pump
CN101956685A (en) Fully water-lubricated super-pressure plunger water pump
CN201212519Y (en) Pin device
CN211501972U (en) Gap type sealing rotary joint
CN201277197Y (en) Dual mechanical sealing device in oil-gas mixed transportation pump
CN101216022A (en) Plunger ported axial plunger hydraulic pump
CN108278186B (en) A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission
CN201184171Y (en) Bias-wearing-proof pumping unit
CN101408192B (en) Double-mechanical sealing device in oil-gas mixed delivery pump
CN201786601U (en) Self-water compensation type flow distribution plunger type ultra-high pressure water pump
CN202152718U (en) Double-acting plunger pump with low rotational speed and large discharge capacity
CN201103727Y (en) Balance type check valve
CN103939310B (en) The board-like radial plunger pump of small-power dish flow
CN201228538Y (en) Non-rod pumping unit
CN201982281U (en) Oil-well pump capable of preventing sand blocking or abrasion
CN203463921U (en) Pressure-relief type lubricant pump unloading valve
CN203114547U (en) Valve control axial plunger pump
CN101956688B (en) Self water-replenishing flat valve plunger type extra-high pressure water pump
CN102042199A (en) Sand-stick-proof sanding oil-well pump
CN102943731B (en) A kind of water lubrication combination bearing
CN206655858U (en) A kind of low abrasion hydraulic transmission

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170118

Termination date: 20190624