CN205779590U - A kind of plunger displacement pump drive mechanism with automatic compensation function - Google Patents
A kind of plunger displacement pump drive mechanism with automatic compensation function Download PDFInfo
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- CN205779590U CN205779590U CN201620536095.3U CN201620536095U CN205779590U CN 205779590 U CN205779590 U CN 205779590U CN 201620536095 U CN201620536095 U CN 201620536095U CN 205779590 U CN205779590 U CN 205779590U
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Abstract
The utility model discloses a kind of plunger displacement pump drive mechanism with automatic compensation function, cylinder body including hollow, plunger it is provided with in cylinder body, the inside of plunger is provided with level pressure overflow valve, plunger is provided with plunger pin, connecting crank drive mechanism on plunger pin, cylinder body is connected with the hydraulic cavities of quantitative barrier film pump head pump head, and cylinder body passes through hose connection oil storage pool.Solve structure complexity, assembling and the problem of negative pressure difficulty of parameter tuning that the Fill valve of existing hydraulic diaphragm pump exists.
Description
Technical field
This utility model belongs to hydraulic diaphragm pump technical field, relates to a kind of plunger displacement pump with automatic compensation function and drives
Mechanism.
Background technology
Hydraulic diaphragm pump relies on piston reciprocation motion to make to close working chamber hydraulic oil liquid and moves ahead rollback, before driven diaphragm is done
Prominent-rear recessed amoeboid movement, working chamber pressure forms the cyclically-varying of high pressure-negative pressure with piston reciprocation motion.Working chamber high pressure
Time by overflow valve overflow, by Fill valve repairing during negative pressure, tradition Fill valve, there is structure complicated, machining accuracy is high, assembles and bears
Pressure difficulty of parameter tuning problem.
Utility model content
The purpose of this utility model is to provide a kind of plunger displacement pump drive mechanism with automatic compensation function, solves existing
What the Fill valve of hydraulic diaphragm pump existed structure complexity, assembling and the problem of negative pressure difficulty of parameter tuning.
This utility model be employed technical scheme comprise that, a kind of plunger displacement pump drive mechanism with automatic compensation function, bag
Including the cylinder body of hollow, be provided with plunger in cylinder body, the inside of plunger is provided with level pressure overflow valve, and plunger is provided with plunger pin, plunger pin
Upper connecting crank drive mechanism, cylinder body is connected with the hydraulic cavities of quantitative barrier film pump head, and cylinder body passes through hose connection oil storage pool.
Feature of the present utility model also resides in,
Wherein the most radially offer shoulder hole a, shoulder hole b and shoulder hole c, shoulder hole a and rank on the sidewall of cylinder body
Ladder hole b is positioned in the two lateral walls of cylinder body, and shoulder hole a is coaxial with shoulder hole b, and shoulder hole b and shoulder hole c is positioned at cylinder body
The same side, the sidewall of cylinder body is additionally provided with pod apertures, and the two ends of pod apertures are through with shoulder hole c and shoulder hole b respectively.
Wherein the large aperture port of shoulder hole a, the large aperture port of shoulder hole b, shoulder hole c large aperture port all and cylinder
The outer wall of body is through, the small-bore port of the small-bore port of shoulder hole a, the small-bore port of shoulder hole b and shoulder hole c all with
The inwall of cylinder body is through；
The large aperture port of shoulder hole a connects the one end having ferrule-type compression joint a, ferrule-type compression joint a to connect flexible pipe,
The other end Connection Card sleeve type pipe joint b, ferrule-type compression joint b of flexible pipe are arranged on one end of screwed hole b, another of screwed hole b
End is provided with antivibrator, and screwed hole b is opened on the sidewall of oil storage pool.
Wherein the working chamber of cylinder body is connected with the hydraulic cavities of quantitative barrier film pump head by right angle-hinged rubber pipe assembly.
Wherein offering the circular hole A and circular hole B being mutually communicated in cylinder body, circular hole A is through with the end, one end of cylinder body, circular hole
B is through with the other end end of cylinder body, and circular hole A, circular hole B are all coaxial with cylinder body, shoulder hole c offer near circular hole B and with circular hole B
It is mutually communicated, the centrage of shoulder hole c and shoulder hole a, the centerline parallel of shoulder hole b and the central axis upright with circular hole B,
Being machined with female thread at the aperture of circular hole B, the hinged pipe joint of right angle-hinged rubber pipe assembly is screwed with circular hole B by screw thread
Connecting, plunger is positioned in circular hole A and is coaxially disposed with circular hole A.
Wherein plunger is cylindrical-shaped structure, the central axial direction along plunger offer successively be mutually communicated screwed hole a,
Spout hole and cavity, cavity is through with the end, one end of plunger, and screwed hole a is through with the other end end of plunger, the phase of plunger
Symmetry on two side offers a pair pin-and-hole, and two pin-and-holes are all through with cavity inside, and plunger pin is installed in the cavities and post
The two ends of plug pin correspondence respectively is positioned in two pin-and-holes, plunger pin and the central axis upright of plunger；
Offer a circle locating slot on the sidewall of the most each pin-and-hole, locating slot be provided with elastic spring, locating slot with
The shape of elastic spring adapts, and locating slot is coaxial with pin-and-hole；
Wherein level pressure overflow valve is by threaded engagement in screwed hole a, and level pressure overflow valve is coaxially disposed with screwed hole a；
Being machined with inclined-plane on the end face that wherein plunger is through with screwed hole a, a circle is offered around the circumference of plunger end face in inclined-plane,
Inclined-plane and plunger end face angulation are 30 °～40 °.
Wherein being machined with oil suction plane on the outer wall of plunger, oil suction plane is positioned on the outer wall of cavity, and oil suction plane is with empty
The inwall in chamber constitutes chamber, arch gap, and oil suction plane and one of them pin-and-hole are positioned at the same side of plunger, and the one of oil suction plane
Side is through with the aperture of this pin-and-hole.
Wherein plunger pin is hollow pins, and the central axis along plunger pin offers through hole.
Wherein crank-drive mechanism includes crank connecting link, and the two ends of crank connecting link offer circular hole C and circular hole D respectively, circle
Being provided with sliding bearing in the C of hole, sliding bearing is socketed on plunger pin, is provided with roller bearing in circular hole D, and roller bearing is socketed in song
On the eccentric shaft of arbor, crank axle is connected with motor by reducing gear.
Wherein antivibrator is cylindric bolt, and the center of antivibrator offers the circular hole E and circular hole F being mutually communicated, circle
Hole E is through with one end end face of antivibrator, and circular hole F is through with the other end end face of antivibrator, the end that antivibrator is through with circular hole E
Face offers straight trough.
The beneficial effects of the utility model are, this utility model cancels traditional Fill valve, change one into and have benefit automatically
Repay the plunger displacement pump drive mechanism of function, greatly simplify structure, decrease movement parts part, reduce processing and equipment adjustment
Difficulty so that repairing is more rapid, efficient, reliable.Reduce internal differential pressure fluctuation simultaneously, improve plunger motion stationarity,
Reduce hydraulic noise.It is simultaneously achieved the intermittent oilling of plunger pin.Pressure-flow through TDGMB-213 type membrane pump tries
Test,
And TDGMB-213 type membrane pump is loaded on the actually used of absorption ammonia refrigeration unit, achieve fabulous use
Effect.Compared with the same specification membrane pump of outsourcing, expense reduces by more than 1/2.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of plunger displacement pump drive mechanism with automatic compensation function of this utility model；
Fig. 2 is the structural representation in Fig. 1 along A-A directional profile；
Fig. 3 is the structural representation of antivibrator in Fig. 1；
Fig. 4 is the end face structure schematic diagram of antivibrator in Fig. 3；
Fig. 5 is the structural representation of Fig. 1 plunger body；
Fig. 6 is that in a kind of plunger displacement pump drive mechanism with automatic compensation function of this utility model, the structure of oil suction plane is shown
It is intended to；
Fig. 7 is that in a kind of plunger displacement pump drive mechanism with automatic compensation function of this utility model, the end face structure of plunger shows
It is intended to.
In figure, 1. cylinder body, 2. shoulder hole a, 3. shoulder hole b, 4. plunger, 5. level pressure overflow valve, 6. plunger pin, 7. right angle-
Hinged rubber pipe assembly, 8. quantitative barrier film pump head, 9. shoulder hole c, 10. ferrule-type compression joint a, 11. flexible pipes, 12. pod apertures,
13. cavitys, 14. screwed hole a, 15. spout holes, 16. inclined-planes, 17. circular hole A, 18. circular hole B, 19. sliding bearings, 20. roller axle
Hold, 21. crank connecting links, 22. circular hole C, 23. circular hole D, 24. oil suction planes, 25. crank axles, 26. eccentric shafts, 27. bite type tubes
Joint b, 28. pin-and-holes, 29. locating slots, 30. chambeies, arch gap, 31. frames, 32. reducing gears, 33. motors, 34. screwed hole b；
35. antivibrators, 35-1. circular hole E, 35-2. circular hole F, 35-3. straight trough；
36. hinged pipe joints.
Detailed description of the invention
With detailed description of the invention, this utility model is described in detail below in conjunction with the accompanying drawings.
A kind of plunger displacement pump drive mechanism with automatic compensation function of this utility model, structure as shown in Figure 1, 2, including in
Empty cylinder body 1, is provided with plunger 4 in cylinder body 1, the inside of plunger 4 is provided with level pressure overflow valve 5, and plunger 4 is provided with plunger pin 6, plunger
Connecting crank drive mechanism on pin 6, cylinder body 1 is by right angle-hinged rubber pipe assembly 7 and quantitative barrier film pump head 8 (quantitative membrane pump
8 can be any one existing hydraulic pressure quantitative barrier film pump head pump head) hydraulic cavities connect, cylinder body 1 is connected by flexible pipe 11
Oil storage pool.
Shoulder hole a2, shoulder hole b3 and shoulder hole c9, shoulder hole a2 and rank are the most radially offered on the sidewall of cylinder body 1
Ladder hole b3 is positioned in the two lateral walls of cylinder body 1, and shoulder hole a2 is coaxial with shoulder hole b3, and shoulder hole b3 and shoulder hole c9 is positioned at
The same side of cylinder body 1, the sidewall of cylinder body 1 is additionally provided with pod apertures 12, the two ends of pod apertures 12 respectively with shoulder hole c9 and ladder
Hole b3 is through.
Shoulder hole a2, shoulder hole b3 and shoulder hole c9 all include macropore and the aperture being mutually communicated.
Large aperture (exit orifice) port of shoulder hole a2, large aperture (exit orifice) port of shoulder hole b3, the macropore of shoulder hole c9
Footpath (exit orifice) port is all through with the outer wall of cylinder body 1, small-bore (endoporus) port of shoulder hole a2, the small-bore of shoulder hole b3
Small-bore (endoporus) port of (endoporus) port and shoulder hole c9 is all through with the inwall of cylinder body 1；The small aperture of shoulder hole a2,
The small aperture of shoulder hole b3 and the small aperture of shoulder hole c9 are 1.5mm～3mm；
The large aperture inwall of the large aperture inwall of shoulder hole a2, the large aperture inwall of shoulder hole b3 and shoulder hole c9 is all processed
There is z1/8 taper pipe thread,
The aperture of pod apertures 12 is 4mm.(large aperture) aperture of shoulder hole b2 and (large aperture) aperture of shoulder hole c9 are equal
Screw in plug screw to be used for sealing.
The large aperture port of shoulder hole a2 connects and has ferrule-type compression joint a10, ferrule-type compression joint a10 to connect flexible pipe 11
One end, the other end Connection Card sleeve type pipe joint b27 of flexible pipe 11, ferrule-type compression joint b27 is arranged on the one of screwed hole b34
End, the other end of screwed hole b34 is provided with antivibrator 35, and screwed hole b34 is opened on the sidewall of oil storage pool.
Wherein offer the end, one end of the circular hole A17 being mutually communicated and circular hole B18, circular hole A17 and cylinder body 1 in cylinder body 1
Through, circular hole B18 is through with the other end end of cylinder body 1, and circular hole A17, circular hole B18 are all coaxial with cylinder body 1, and c9 is close for shoulder hole
Circular hole B18 offers and is mutually communicated with circular hole B18, and the centrage of shoulder hole c9 is flat with the centrage of shoulder hole a2, shoulder hole b3
Row and the central axis upright with circular hole B18, be machined with female thread, right angle-hinged rubber pipe assembly 7 at the aperture of circular hole B18
Hinged pipe joint 36 screwed with circular hole B18 by screw thread and be connected, plunger 4 is positioned in circular hole A17 and coaxially sets with circular hole A17
Put.
Right angle-hinged rubber pipe assembly 7 is existing structure, including union elbow, the hinged termination of 74 ° of conical surface seals
Head, braided steel wire flexible pipe and buckling piece, its latus rectum is 6mm～10mm.
The aperture of circular hole B18 is the 1/2～1/3 of circular hole A17 aperture, and the degree of depth of circular hole A17 is more than or equal to the length of plunger 4
Haul distance sum with plunger 4.
As shown in Figure 3,4, antivibrator 35 is cylindric bolt (bolt outer wall is machined with external screw thread), the center of antivibrator 35
Place offers the circular hole E35-1 and circular hole F35-2 being mutually communicated, and circular hole E35-1 aperture is through with one end end face of antivibrator 35,
Circular hole F35-2 is through with the other end end face of antivibrator 35, and antivibrator 35 end face through with circular hole E35-1 offers straight trough
35-3, in order to the assembling that spins.The aperture of circular hole E35-1 screws to be connected with ferrule-type compression joint b27 in screwed hole b36, circular hole
F35-2 is internal with oil storage pool to be connected, and the aperture of circular hole E35-1 is 4mm～6mm, and the degree of depth is 3mm～6mm；The hole of circular hole F35-2
Footpath is 1mm～3mm, and the degree of depth is 2～6mm.
Flexible pipe 11 is transparent hose, and circular hole F35-2 is positioned at below oil storage pool liquid level.
As it is shown in figure 5, plunger 4 is cylindrical-shaped structure, the central axial direction along plunger 4 offers successively and is mutually communicated
Screwed hole a14, spout hole 15 and cavity 13, cavity 13 is through with the end, one end of plunger 4, another of screwed hole a14 and plunger 4
End end is through, and in the two lateral walls of plunger 4, symmetry offers a pair pin-and-hole 28, and two pin-and-holes 28 all pass through with cavity 13 inside
Logical, plunger pin 6 is arranged in cavity 13, and the two ends of plunger pin 6 correspondence respectively is positioned in two pin-and-holes 28, plunger pin 6 and post
The central axis upright (two pin-and-holes 28 are coaxial, complete boring, reaming, fraising the most simultaneously) of plug 4；
Offer a circle locating slot 29 on the sidewall of the most each pin-and-hole 28, locating slot 29 is provided with elastic spring, fixed
Position groove 29 adapts with the shape of elastic spring, and locating slot 29 is coaxial with pin-and-hole 28；
Wherein level pressure overflow valve 5 is by threaded engagement in screwed hole a14, and level pressure overflow valve 5 coaxially sets with screwed hole a14
Put；
Being machined with inclined-plane 16 on the end face that wherein plunger 4 is through with screwed hole a14, inclined-plane 16 is around the circumference of plunger 4 end face
Offer a circle (composition taper surface), (it refers to inclined-plane 16) the plunger 4 end face angulation at inclined-plane 16 and its place be 30 °～
40 ° (plunger 4 end through with cavity 13 is the bottom of plunger, the top that plunger end be plunger 4 through with screwed hole a14
Portion)；The position at shoulder hole a2 and shoulder hole b3 place is positioned at: when bottom and cylinder body 1 one end port (cavity 13 and the cylinder of plunger 4
The port that body 1 is through) concordant time, when i.e. plunger 4 returns to initial position, on plunger 4 one circle inclined-plane 16 bottom just will
1mm～the 3mm aperture of hole ladder mouth a2 and shoulder hole b3 is avoided completely, is not i.e. just blocked by the top end face of plunger 4, makes oil
Liquid can be in shoulder hole a2 flows to the circular hole A17 of cylinder body 1, the working chamber of circular hole A17 position cylinder body 1.
Wherein using matched in clearance between cylindrical (outer wall) and the inwall of circular hole A17 of plunger 4, fit clearance is 0.01mm
～0.02mm, the cylindrical cylindricity of plunger 4 and the cylindricity≤0.005mm of circular hole A17.
Wherein plunger pin 6 is hollow pins, and the central axis along plunger pin 6 offers through hole, and plunger pin 6 is joined with pin-and-hole 28
It is combined into matched in clearance.
As shown in Figure 6,7, the outer wall of plunger 4 being machined with oil suction plane 24, oil suction plane 24 is positioned at the outer wall of cavity 13
On, oil suction plane 24 (the long 26mm of oil suction plane 24, wide 9mm) constitutes chamber, arch gap 30 (this gap thickness with the inwall of cavity 13
Degree 0.35mm～0.5mm), oil suction plane 24 and one of them pin-and-hole 28 are positioned at the same side of plunger 4, and the one of oil suction plane 24
Side is through with the aperture of this pin-and-hole 28, through is shaped as crescent shape gap.
Wherein crank-drive mechanism includes that crank connecting link 21, the two ends of crank connecting link 21 offer circular hole C22 and circle respectively
Hole D23, is provided with sliding bearing 19 in circular hole C22, sliding bearing 19 is socketed on plunger pin 6 (and being positioned in cavity 13), circular hole
Being provided with roller bearing 20 in D23, roller bearing 20 is socketed in (eccentric shaft 26 axial line and crank on the eccentric shaft 26 of crank axle 25
Axle 25 turns round axial line and staggers a segment distance (stroke of 1/2 plunger 4), and two axis parallels.Crank axle 25 every revolution, partially
Mandrel 26 turns around around centre of gyration public affairs, eccentric shaft 26 by crank connecting link 21, plunger pin 6 drive plunger 4 complete one past
Multiple stroke), crank axle 25 is connected with motor 33 by reducing gear 32.
Wherein the both sides, middle part of crank connecting link 21 are respectively provided with T-shaped cavity, so can alleviate the weight of crank connecting link 21, subtract
Few reciprocating inertia impact of crank connecting link 21, improves the motility of motion.
The work process of a kind of plunger displacement pump drive mechanism with automatic compensation function of the present utility model is as follows: work it
Front hands rotating crank drive mechanism, drives plunger 4 to move to position shown in Fig. 1 through crank connecting link 21, and makes the circle of cylinder body 1
Hole A17 (cylinder body 1 working chamber), right angle-hinged rubber pipe assembly 7 inner chamber and the hydraulic chamber institute of quantitative barrier film pump head 8 pump head
The closing working chamber formed is full of hydraulic oil and drains air；
During work, motor 33 drives crank axle 25 to rotate (crank axle 25 several by two-stage synchronous pulley reducing gear 32
What center is fixed in frame 31), crank axle 25 drives crank connecting link 21 to drive plunger 4 to move reciprocatingly, and plunger 4 pushes away when moving ahead
The dynamic hydraulic oil liquid closed in working chamber moves ahead, and extrudes the diaphragm prolapse deformation of quantitative barrier film pump head 8, quantitative membrane pump head 8
Dielectric cavity in medium be extruded；Hydraulic fluid pressure is set by level pressure overflow valve 5, unnecessary hydraulic oil by level pressure overflow valve 5,
Spout hole 15, cavity 13 flow back to oil storage pool with the gap of crank connecting link 21.The hydraulic pressure closed in working chamber is pulled during plunger 4 rollback
Fluid rollback so that quantitatively concave change shape after the diaphragm of barrier film pump head 8, medium is inhaled into the pump head dielectric cavity of quantitative barrier film pump head 8.
It is negative pressure in closing working chamber in back off procedure, when plunger 4 return back to position shown in Fig. 1, owing to ladder mouth a2 is through bite type
Pipe joint a10, flexible pipe 11, ferrule-type compression joint b27, antivibrator 35 are connected with oil storage pool, the liquid of oil storage pool under suction function
Force feed is inhaled into closing working chamber, in suction process, at shoulder hole a2, shoulder hole b3, shoulder hole c9 and cylinder body 1 working chamber
(circular hole A17) communicates, and the internal intercommunication of shoulder hole b3, shoulder hole c9, pod apertures 12 and circular hole B18, constitute internal diversion passage,
Internal diameter due to circular hole B18 is much smaller than the internal diameter of circular hole A17, closes working chamber rollback flow everywhere identical, circle during plunger 4 rollback
The aperture of hole B18 is the 1/2～1/3 of circular hole A17 aperture, and the area ratio of circular hole A17 and circular hole B18 is 1/4～1/9, therefore ladder
Faster, thus negative pressure value is lower for hole c9 and circular hole B18 through place flow velocity, and circular hole B18 is through shoulder hole c9, pod apertures 12, shoulder hole
B3 draws fluid with the through place of circular hole A17, is able to quick repairing so that closes working chamber internal pressure and tends to equilibrium, so that
Repairing is more rapid efficiently, the most reliable.Repairing is passed through when closing working chamber, when internal pressure gradually rises to an atmospheric pressure,
Automatically repairing process terminates, and plunger 4 starts to move ahead, and enters next cycle of operation.
When plunger 4 is forwarded to certain position, and shoulder hole a2 connects with oil suction plane 24, and plunger 4 continues to move ahead, arch gap
Chamber 30 volume becomes big, thus chamber, arch gap 30 is through ferrule-type compression joint a10, flexible pipe 11, ferrule-type compression joint b27, antivibrator
35 draw fluid from oil storage pool；Fluid enters the pin-and-hole 28 of plunger 4 through crescent shape gap, enters post by the through hole of plunger pin 6
In the pin-and-hole 28 of the plug pin other end, after more than 4 forward travel of plunger, pin-and-hole 28 stores full fluid, can be to plunger pin 6 two ends cylindrical
Face faying face carries out infiltration lubrication；Along with plunger 4 moves, the fluid stored in pin-and-hole 28 enters into plunger 4 and the cooperation of cylinder body 1
Gap is formed oil film, both can lubricate plunger 4 sidewall, and air can have been blocked again and entered by the fit clearance of cylinder body 1 with plunger 4
Enter to close working chamber.
Move to chamber, arch gap 30 leave hole shoulder hole a2 when plunger 4 does rollback, then inlet port is closed, along with plunger
The reciprocating motion of 4, shoulder hole a2 repeats oil suction-pass closed loop, is achieved that plunger pin 6 cylindrical, the lubrication of plunger 4 outer round surface
With plunger 4 and the oil film seal effect of cylinder body 1 faying face.
This device is in each reciprocatory movement of plunger 4, and compound completing closes the automatic repairing of working chamber and plunger
Pin 6 periphery and the lubrication of plunger 4 outer round surface and plunger 4 and the oil film seal function of cylinder body 1 faying face.
Control the aperture of circular hole F35-2 in antivibrator 35, form suitable throttling choked flow effect, control oil suction plane 24 with
Cylinder body 1 inner surface forms the thickness in chamber, arch gap 30, makes arch obtain chamber, gap 30 inner fluid and has enough viscosity resistances, energy
The enough fluid effectively prevented in flexible pipe 11, because of deadweight backflow oil storage pool, causes air to enter oil-supplementing system, subsequently into closing work
Make chamber, cause quantitative barrier film pump head 8 work efficiency to reduce or lost efficacy.
Flexible pipe 11 is designed as transparence, can observe repairing and intermittent oilling effect and quantitative barrier film pump head 8 intuitively
Work the most normal.
Claims (10)
1. a plunger displacement pump drive mechanism with automatic compensation function, it is characterised in that: include the cylinder body (1) of hollow, cylinder body
(1) being provided with plunger (4) in, the inside of plunger (4) is provided with level pressure overflow valve (5), and plunger (4) is provided with plunger pin (6), plunger pin
(6) upper connecting crank drive mechanism, described cylinder body (1) is connected with the hydraulic cavities of quantitative barrier film pump head (8), and cylinder body (1) is by soft
Pipe (11) connects oil storage pool.
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 1, it is characterised in that: described
The most radially offer shoulder hole a (2), shoulder hole b (3) and shoulder hole c (9) on the sidewall of cylinder body (1), shoulder hole a (2) with
Shoulder hole b (3) is positioned in the two lateral walls of cylinder body (1), and shoulder hole a (2) and shoulder hole b (3) is coaxial, shoulder hole b (3) and
Shoulder hole c (9) is positioned at the same side of cylinder body, and the sidewall of described cylinder body (1) is additionally provided with pod apertures (12), the two of pod apertures (12)
Hold through with shoulder hole c (9) and shoulder hole b (3) respectively.
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 2, it is characterised in that: described
The large aperture port of shoulder hole a (2), the large aperture port of shoulder hole b (3), shoulder hole c (9) large aperture port all and cylinder body
(1) outer wall is through, the small-bore port of described shoulder hole a (2), the small-bore port of shoulder hole b (3) and shoulder hole c's (9)
Small-bore port is all through with the inwall of cylinder body (1)；
Connecting in the large aperture port of described shoulder hole a (2) has ferrule-type compression joint a (10), ferrule-type compression joint a (10) to connect
One end of flexible pipe (11), other end Connection Card sleeve type pipe joint b (27) of flexible pipe (11), ferrule-type compression joint b (27) is arranged on
One end of screwed hole b (34), the other end of screwed hole b (34) is provided with antivibrator (35), and screwed hole b (34) is opened in oil storage
On the sidewall in pond.
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 3, it is characterised in that: described
Cylinder body (1) is connected with the hydraulic cavities of quantitative barrier film pump head (8) pump head by right angle-hinged rubber pipe assembly (7).
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 4, it is characterised in that: described
Offering the circular hole A (17) and circular hole B (18) being mutually communicated in cylinder body (1), circular hole A (17) passes through with the end, one end of cylinder body (1)
Logical, circular hole B (18) is through with the other end end of cylinder body (1), and circular hole A (17), circular hole B (18) are all coaxial with described cylinder body (1),
Described shoulder hole c (9) is offered and is mutually communicated with circular hole B (18) near circular hole B (18), the centrage of described shoulder hole c (9) with
Shoulder hole a (2), the centerline parallel of shoulder hole b (3) and the central axis upright with circular hole B (18), the aperture of circular hole B (18)
Place is machined with female thread, and the hinged pipe joint of described right angle-hinged rubber pipe assembly (7) is screwed with circular hole B (18) by screw thread
Connecting, described plunger (4) is positioned in circular hole A (17) and is coaxially disposed with circular hole A (17).
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 1, it is characterised in that: described
Plunger (4) is cylindrical-shaped structure, the central axial direction along plunger (4) offer successively be mutually communicated screwed hole a (14), overflow
Discharge orifice (15) and cavity (13), cavity (13) is through with the end, one end of plunger (4), another of screwed hole a (14) and plunger (4)
End end is through, and in the two lateral walls of plunger (4), symmetry offers a pair pin-and-hole (28), and two pin-and-holes (28) are all and cavity
(13) internal run-through, described plunger pin (6) is arranged in cavity (13) and the two ends correspondence respectively of plunger pin (6) is positioned at two pins
In hole (28), described plunger pin (6) and the central axis upright of plunger (4)；
Offering a circle locating slot (29) on the sidewall of each described pin-and-hole (28), locating slot is provided with elastic spring in (29),
Locating slot (29) adapts with the shape of described elastic spring, and locating slot (29) is coaxial with pin-and-hole (28)；
Described level pressure overflow valve (5) is by threaded engagement in screwed hole a (14), and level pressure overflow valve (5) is same with screwed hole a (14)
Axle is arranged；
Being machined with inclined-plane (16) on the end face that described plunger (4) is through with screwed hole a (14), inclined-plane (16) are around plunger (4) end face
Circumference offer a circle, inclined-plane (16) and plunger (4) end face angulation are 30 °～40 °.
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 6, it is characterised in that: described
Being machined with oil suction plane (24) on the outer wall of plunger (4), oil suction plane (24) is positioned on the outer wall of described cavity (13), and oil suction is put down
Face (24) constitutes chamber, arch gap (30), oil suction plane (24) and one of them described pin-and-hole (28) position with the inwall of cavity (13)
In the same side of plunger (4), and the side of oil suction plane (24) is through with the aperture of this pin-and-hole (28).
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 1, it is characterised in that: described
Plunger pin (6) is hollow pins, and the central axis along plunger pin (6) offers through hole.
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 1, it is characterised in that: described
Crank-drive mechanism includes that crank connecting link (21), the two ends of crank connecting link (21) offer circular hole C (22) and circular hole D respectively
(23), being provided with sliding bearing (19) in circular hole C (22), sliding bearing (19) is socketed on described plunger pin (6), circular hole D (23)
In be provided with roller bearing (20), roller bearing (20) is socketed on the eccentric shaft (26) of crank axle (25), and crank axle (25) passes through
Reducing gear (32) is connected with motor (33).
A kind of plunger displacement pump drive mechanism with automatic compensation function the most according to claim 3, it is characterised in that: institute
Stating antivibrator (35) is cylindric bolt, and the center of antivibrator (35) offers the circular hole E (35-1) and circular hole F being mutually communicated
(35-2), circular hole E (35-1) is through with one end end face of antivibrator (35), and circular hole F (35-2) is another with described antivibrator (35)
One end end face is through, and the through end face of antivibrator (35) and circular hole E (35-1) offers straight trough (35-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536095.3U CN205779590U (en) | 2016-06-03 | 2016-06-03 | A kind of plunger displacement pump drive mechanism with automatic compensation function |
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| CN201620536095.3U CN205779590U (en) | 2016-06-03 | 2016-06-03 | A kind of plunger displacement pump drive mechanism with automatic compensation function |
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| CN205779590U true CN205779590U (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909500A (en) * | 2016-06-03 | 2016-08-31 | 陕西理工学院 | Plunger pump driving device with automatic compensation function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909500A (en) * | 2016-06-03 | 2016-08-31 | 陕西理工学院 | Plunger pump driving device with automatic compensation function |
| CN105909500B (en) * | 2016-06-03 | 2018-10-02 | 陕西理工学院 | A kind of plunger pump driving device compensated automatically |
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| 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: 20161207 Termination date: 20180603 |