CN207212602U - A kind of plunger pump of self-lubricating - Google Patents
A kind of plunger pump of self-lubricating Download PDFInfo
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- CN207212602U CN207212602U CN201721182873.4U CN201721182873U CN207212602U CN 207212602 U CN207212602 U CN 207212602U CN 201721182873 U CN201721182873 U CN 201721182873U CN 207212602 U CN207212602 U CN 207212602U
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- plunger
- self
- lubricating
- water
- pump
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Abstract
The utility model discloses a kind of plunger pump of self-lubricating, including the pump housing, draw water unit and drive mechanism are provided with the pump housing, the unit that draws water includes plunger bushing and plunger, the drive mechanism driving plunger moves back and forth in plunger bushing to be drawn water with realizing, self-lubricating bush is provided between the plunger and plunger bushing, the self-lubricating bush is used to reduce the frictional force between plunger and plunger bushing.The plunger pump of this self-lubricating can play the function of lubrication plunger and plunger bushing in a long time, and without adding butter or other lubricants, while convenient disassembly, good airproof performance, efficiency of drawing water are higher.
Description
Technical field
A kind of plunger pump is the utility model is related to, particularly a kind of plunger pump of self-lubricating.
Background technology
Plunger pump moved back and forth using plunger in plunger bushing caused by volume change be operated, plunger pump
Delivery port and water inlet be arranged to one-way flow, to realize that the unidirectional of plunger is drawn water.
A kind of existing plunger pump by motor driven, the rotary motion for being exported motor using slider-crank mechanism are changed
Into the reciprocating motion of plunger, drawn water with realizing.Existing notification number is that CN1987102A patent of invention discloses a kind of plunger pump
Pressure sealing ring locks lubricating arrangement, including grease cover and butter cup body, butter cup body by aperture with being communicated in plunger bushing,
Butter is filled it up with butter cup body, then turns grease cover downwards, the butter in butter cup body is squeezed into plunger by aperture
In set, for plunger when moving back and forth, butter forms one layer of butter oil film on the outer surface of plunger, plays lubrication.But should
Lubricating arrangement needs artificially to add butter and turn grease cover that lubrication could be realized, if manually forgetting to operate, plunger
It may be slided in plunger bushing with dry condition, easily cause device damage.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of plunger pump of self-lubricating, energy
The function of lubrication plunger and plunger bushing is played in a long time, without adding butter or other lubricants.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of plunger of self-lubricating
Pump, including the pump housing, the pump housing are provided with draw water unit and drive mechanism, and the unit that draws water includes plunger bushing and plunger, institute
State drive mechanism driving plunger to move back and forth in plunger bushing and draw water to realize, be provided between the plunger and plunger bushing from profit
Sliding sleeve.
Pass through above-mentioned technical proposal, drive mechanism driving plunger are moved back and forth in plunger bushing and drawn water with realizing, plunger with
The self-lubricating bush set between plunger bushing instead of plunger and be contacted with the direct of plunger inner room, due to self-lubricating bush surface
Coefficient of friction is relatively low, so plunger resistance when self-lubricating bush surface is slided is smaller, is not easy to draw after long-time relative motion
Hinder plunger or produce high temperature, play a part of self-lubricating, and butter or other lubricants need not be added.
Preferably, the material of the self-lubricating bush is Teflon.
Pass through above-mentioned technical proposal, the coefficient of friction of teflon material is extremely low, and anti-wear performance is good, is very suitable for conduct
Self-lubricating bush prepares material.
Preferably, it is provided with seal cage between the plunger bushing and plunger.
Pass through above-mentioned technical proposal, even if relative motion occurs between plunger bushing and plunger, seal cage can also play outstanding
Sealing effectiveness, blocked the space at plunger both ends to connect, reduce leak.
Preferably, the quantity of the seal cage is two, and two seal cages are located at the end face of self-lubricating bush respectively
Both sides.
Pass through above-mentioned technical proposal, the seal cage positioned at self-lubricating bush both sides can play double sealing effect, block
While the space connection at plunger both ends, the water or oil that can reduce plunger both sides enter in self-lubricating bush, improve self-lubricating
The working condition of sleeve is to extend the service life of self-lubricating bush.
Preferably, the peep hole connected with plunger bushing inner chamber is offered on the pump housing, the peep hole is located at close to pump
Between the seal cage and drive mechanism of body side.
Pass through above-mentioned technical proposal, if the sealing of seal cage and plunger is bad, between water can be passed through by seal cage
Gap enters drive mechanism side, by checking whether peep hole has water to spill, it can be determined that the sealing condition of mechanism, and can be with this
Decide whether to open and inspect plunger pump for foundation and change spare part.
Preferably, the plunger bushing includes dismountable sleeve sections, and the sleeve sections are located at the centre position of plunger bushing, institute
Self-lubricating bush is stated to be arranged in sleeve sections.
Pass through above-mentioned technical proposal, because self-lubricating bush is located at the centre position of plunger bushing, so generally tearing open
It is more difficult to fill self-lubricating bush, sleeve sections are changed to detachable, you can easily installs or change self-lubricating bush.
Preferably, the interior nozzle of the sleeve sections is provided with chamfering.
Pass through above-mentioned technical proposal, because the external diameter of self-lubricating bush and the internal diameter of sleeve sections are identical, so by self-lubricating
Be difficult to be aligned during sleeve insertion sleeve section, install time and effort consuming, sleeve sections be used to loading the end face of self-lubricating bush with
After the crossover position of the inwall of sleeve sections sets chamfering, self-lubricating bush can be loaded easily by the guide effect of chamfering
In sleeve sections.
Preferably, two end faces that the sleeve sections contact with plunger bushing are provided with sealing ring.
Pass through above-mentioned technical proposal, sealing ring can play outstanding sealing function after compressing, in sleeve sections and its end face two
After the tightened relative of side, sealing ring can further strengthen the sealing of sleeve sections and its end face both sides contact position.
Preferably, the quantity of the unit that draws water is multiple that multiple plungers are driven simultaneously by drive mechanism.
Pass through above-mentioned technical proposal, on the premise of power source is not increased, drive mechanism drives multiple units that draw water simultaneously
Action completion is drawn water, and the efficiency of drawing water of plunger pump is higher.
Preferably, offer the water inlet with plunger bushing connects with the internal cavities on multiple plunger bushings respectively, it is described enter
Water knockout drum is provided with the mouth of a river, the outlet of the water knockout drum is connected with multiple water inlets respectively.
Pass through above-mentioned technical proposal, using on water knockout drum it is single enter water inlet can be simultaneously to multiple water inlets on the pump housing
Mouth send water, simplifies pipeline arrangement.
In summary, the utility model having the beneficial effect that in contrast to prior art：The plunger pump of this self-lubricating can compared with
The function of lubrication plunger and plunger bushing is played in long-time, without adding butter or other lubricants, while convenient disassembly, sealing
Property is good.
Brief description of the drawings
Fig. 1 is the stereogram of embodiment, the external structure of main prominent embodiment；
Fig. 2 is Fig. 1 A-A sectional views, the internal structure of main prominent embodiment；
Fig. 3 is Fig. 2 partial schematic diagram positioned at sleeve sections, the structure on main prominent sleeve sections periphery；
Fig. 4 is enlarged drawing at Fig. 3 B, the structure on self-lubricating bush and its periphery in main prominent embodiment.
Reference：1st, the pump housing；2nd, draw water section；3rd, sleeve sections；4th, support section；5th, drive mechanism；6th, draw water unit；61、
Plunger bushing；62nd, plunger；51st, drive shaft；52nd, crank；53rd, connecting rod；611st, mounting groove；612nd, chamfering；7th, self-lubricating bush；63、
Seal cage；631st, the first seal cage；632nd, the second seal cage；633rd, the first water sealed tank；634th, the second water sealed tank；8th, sealing ring；
41st, base；42nd, peep hole；43rd, bolt is observed；21st, chamber volume；22nd, water inlet；23rd, delivery port；9th, water knockout drum；91st, compress
Bolt.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
As depicted in figs. 1 and 2, a kind of plunger pump of self-lubricating, including the pump housing 1.The He of drive mechanism 5 is provided with the pump housing 1
Three units 6 that draw water, drive mechanism 5 drive three units 6 that draw water to act completion and drawn water simultaneously.Each unit 6 that draws water includes post
Plug sleeve 61 and the plunger 62 being slideably positioned in plunger bushing 61.
Plunger bushing 61 is generally cylindrical shroud barrel structure, and three plunger bushings 61 are parallel to each other.Each plunger bushing 61 includes taking out
Positioned at drawing water between section 2 and support section 4, a part for support section 4 is pacified for water section 2, sleeve sections 3 and support section 4, wherein sleeve sections 3
Loaded in the pump housing 1.
Drive mechanism 5 include three cranks 52 drive shaft 51, one end being fixed in drive shaft 51 and respectively with each crank
Three be hinged connecting rods 53 of 52 other ends.Drive shaft 51 is rotated and is arranged in support section 4, and the fixing end of three cranks 52 is solid respectively
Due to drive shaft 51, axially above the diverse location of face each group plunger bushing 61, the free end of three connecting rods 53 are hingedly connected to correspondingly
Three plungers 62 on.
Plunger 62 is elongated cylinder, and the external diameter of plunger 62 is slightly less than the internal diameter of plunger bushing 61, and the face of cylinder of plunger 62 has
Higher precision, plunger 62 are smaller with the gap of plunger bushing 61 when being slided in plunger bushing 61.
As shown in figure 4, offering mounting groove 611 in the plunger bushing 61 of sleeve sections 3, mounting groove 611 is annular groove, peace
Tankage 611 is opened in the opening of sleeve sections 3 close to support section 4, and the end face crossover position of mounting groove 611 and sleeve sections 3 has
Chamfering 612, the internal diameter of mounting groove 611 are slightly larger than the internal diameter of plunger bushing 61, are provided with mounting groove 611 and are made up of teflon material
Self-lubricating bush 7.The external diameter of self-lubricating bush 7 is identical with the internal diameter of mounting groove 611, the internal diameter and plunger of self-lubricating bush 7
62 external diameter is identical, and self-lubricating bush 7 can be loaded in mounting groove 611 easily by the guide effect of chamfering 612.
Seal cage 63 is provided between plunger bushing 61 and plunger 62, seal cage 63 includes the first seal cage 631 and the second water
Seal ring 632.Support section 4 offers the first water sealed tank 633 of ring-type close to the position of sleeve sections 3, and the first water sealed tank 633 is opened in
On the inwall of the radial direction of support section 4, the first seal cage 631 is installed in the first water sealed tank 633.Sleeve sections 3 are close to the position for section 2 of drawing water
The second water sealed tank 634 for offering ring-type is put, the second water sealed tank 634 is opened on the inwall of the radial direction of sleeve sections 3, the second seal cage
632 are installed in the second water sealed tank 634.Sealing ring is separately installed with the face that sleeve sections 3 are in contact with section 2 of drawing water, support section 4
8。
As shown in figure 3, the pump housing 1 is provided with the base 41 for non-movable piston pump, the outer wall of the pump housing 1 offers and plunger bushing 61
The peep hole 42 of inner chamber connection, peep hole 42 is between the first seal cage 631 and drive shaft 51, the openend court of peep hole 42
To the direction of base 41.Peep hole 42 is provided with internal thread, and the observation bolt coordinated with the screw thread of peep hole 42 is screwed with peep hole 42
43。
The space that the inwall of section of drawing water 2 is formed with the top end face of plunger 62 is chamber volume 21.Section of drawing water 2 is offered and held
Product room 21 water inlet 22 and delivery port 23 that communicate, wherein water inlet 22 can only unidirectional water inflow, delivery port 23 can only unidirectional water outlet.
As shown in figures 1 and 3, the outer end of three water inlets 22 is provided with the water knockout drum 9 that specification is one point three, the outlet of water knockout drum 9
End is connected with three water inlets 22 respectively.Hold-down bolt 91 is provided between water knockout drum 9 and support section 4, by tightening compression spiral shell
Bolt 91, water knockout drum 9, section of drawing water 2, sleeve sections 3 and support section 4 are tightly secured together.
During installation, base 41 towards ground and is fixed on stable position, then the openend of peep hole 42 is towards ground.So
The output end of motor can be connected in drive shaft 51 afterwards, is rotated by motor driven drive shaft 51, drive shaft 51 drives three simultaneously
Crank 52 rotates, and it is reciprocal that three cranks 52 drive corresponding plunger 62 to be completed in plunger bushing 61 by corresponding connecting rod 53 respectively
Motion.Plunger 62 is pumped into chamber volume 21 when moving back and forth, by water from water inlet 22, and extrudes completion by delivery port 23 and take out
Water.
Due to drive mechanism 5 simultaneously drive three draw water units 6 act completions draw water, so plunger pump draw water efficiency compared with
It is high.Because the coefficient of friction of teflon material is extremely low, and anti-wear performance is good, so self-lubricating bush 7 made of Teflon
The lubricants such as butter can be substituted, the frictional force that plunger 62 slides in plunger bushing 61 is reduced and realize self-lubricating, and relatively long
Time in service free.Sleeve sections 3 can separate with section 2 of drawing water, support section 4, facilitate self-lubricating bush 7 and installation with more
Change.Seal cage 63 positioned at the both sides of self-lubricating bush 7 can play double sealing effect, block chamber volume 21, self-lubricating bush 7
Space connection between drive mechanism 5, reduces profit and mutually oozes.Section of drawing water 2, sleeve sections 3 and support section 4 pass through hold-down bolt
After 91 fix, sealing ring 8 can play good sealing effectiveness, so the plunger pump outwardly probability of leak or oil leak can be reduced.
After turning on observation bolt 43, by checking whether peep hole 42 has water to spill, it can be determined that the sealing condition of mechanism,
And it can on this basis decide whether to open and inspect plunger pump and change spare part.
Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model
Enclose, the scope of protection of the utility model is determined by appended claim.
Claims (10)
1. a kind of plunger pump of self-lubricating, including the pump housing (1), the pump housing (1) is provided with the unit that draws water (6) and drive mechanism
(5), the unit that draws water (6) includes plunger bushing (61) and plunger (62), and drive mechanism (5) the driving plunger (62) is in plunger
Move back and forth in set (61) and drawn water with realizing, it is characterized in that：Self-lubricating is provided between the plunger (62) and plunger bushing (61)
Sleeve (7).
2. a kind of plunger pump of self-lubricating according to claim 1, it is characterized in that：The material of the self-lubricating bush (7)
For Teflon.
3. a kind of plunger pump of self-lubricating according to claim 1, it is characterized in that：The plunger bushing (61) and plunger (62)
Between be provided with seal cage (63).
4. a kind of plunger pump of self-lubricating according to claim 3, it is characterized in that：The quantity of the seal cage (63) is two
Individual, two seal cages (63) are located at the end face both sides of self-lubricating bush (7) respectively.
5. a kind of plunger pump of self-lubricating according to claim 4, it is characterized in that：Offered on the pump housing (1) and post
Plug sleeve (61) inner chamber connection peep hole (42), the peep hole (42) be located at close to the pump housing (1) side seal cage (63) and
Between drive mechanism (5).
6. a kind of plunger pump of self-lubricating according to claim 1, it is characterized in that：The plunger bushing (61) includes detachable
Sleeve sections (3), the sleeve sections (3) are located at the centre position of plunger bushing (61), and the self-lubricating bush (7) is arranged at sleeve
In section (3).
7. a kind of plunger pump of self-lubricating according to claim 6, it is characterized in that：The interior nozzle of the sleeve sections (3) is set
It is equipped with chamfering (612).
8. a kind of plunger pump of self-lubricating according to claim 6, it is characterized in that：The sleeve sections (3) and plunger bushing
(61) two end faces of contact are provided with sealing ring (8).
9. a kind of plunger pump of self-lubricating according to claim 1, it is characterized in that：The quantity of the unit that draws water (6) is
Multiple, multiple plungers (62) are driven simultaneously by drive mechanism (5).
10. a kind of plunger pump of self-lubricating according to claim 9, it is characterized in that：Divide on multiple plunger bushings (61)
Do not offer with the water inlet (22) of plunger bushing (61) connects with the internal cavities, be provided with water knockout drum (9) on the water inlet (22),
The outlet of the water knockout drum (9) is connected with multiple water inlets (22) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182873.4U CN207212602U (en) | 2017-09-15 | 2017-09-15 | A kind of plunger pump of self-lubricating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182873.4U CN207212602U (en) | 2017-09-15 | 2017-09-15 | A kind of plunger pump of self-lubricating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212602U true CN207212602U (en) | 2018-04-10 |
Family
ID=61824912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721182873.4U Active CN207212602U (en) | 2017-09-15 | 2017-09-15 | A kind of plunger pump of self-lubricating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212602U (en) |
-
2017
- 2017-09-15 CN CN201721182873.4U patent/CN207212602U/en active Active
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