CN107191368A - A kind of lubrication system of plunger pump - Google Patents
A kind of lubrication system of plunger pump Download PDFInfo
- Publication number
- CN107191368A CN107191368A CN201710646767.5A CN201710646767A CN107191368A CN 107191368 A CN107191368 A CN 107191368A CN 201710646767 A CN201710646767 A CN 201710646767A CN 107191368 A CN107191368 A CN 107191368A
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- CN
- China
- Prior art keywords
- oil
- lubrication
- felt collar
- suction portion
- plunger
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a kind of lubrication system of plunger pump, belong to hydraulic pressure pump technical field.It solve how to ensure an oiling can to plunger carry out pcrmanent lubrication while so that the problem of lubricating oil is not easy seepage occur.This plunger pump includes the pump housing and the plunger in the pump housing, this lubrication system includes being arranged on the oil filler point on pump housing top, is positioned in the pump housing and is set in the lubrication felt collar on plunger and is arranged on the oil leaking hole of pump housing bottom, lubrication felt collar is made of oil absorption material and kept off between oil filler point and oil leaking hole, the oil storage tank communicated with oil leaking hole is provided with below oil leaking hole, lubricating has oil suction portion one on felt collar, oil suction portion one is through oil leaking hole and extend into oil storage tank.This lubrication system is designed more than passing through so that the oiling frequency can greatly reduce, and reduce the maintenance amount of plunger pump, while ensure that lubricating oil is not easy seepage occur when once injecting a large amount of lubricating oil.
Description
Technical field
The invention belongs to hydraulic pressure pump technical field, it is related to a kind of plunger pump, particularly a kind of lubrication system of plunger pump.
Background technology
Plunger pump is an important device of hydraulic system, and plunger pump, which is widely used in high pressure, big flow and flow, to be needed
The occasion to be adjusted, such as hydraulic press, engineering machinery and ship, agricultural machinery and the medium multiple fields of equipment for plant protection.Wherein, post
The operation principle of plug pump is mainly to rotate drivening rod, plunger by bent axle to be changed into straight reciprocating motion, to change fluid cylinder appearance
Product periodically reaches the purpose of suction and discharge liquid.
To ensure that plunger can be moved back and forth under long-term specified high speed, it is necessary to be lubricated to plunger, existing plunger profit
Sliding lubricant medium typically uses butter.Because the reciprocating motion of plunger is violent, it is necessary to which post can just be prevented by frequently adding butter
Plug abrasion.But in practice, the maintenance of frequent is often difficult to reach, the consumption of butter quickly, can produce dry grinding, shorten
The service life of plunger, influences the performance of plunger pump.
In order to solve above-mentioned problem, such as Chinese patent【Application number：200820088796.0】Disclose a kind of post
Fill in pump, including be placed in the pump housing the mobile pump shaft coordinated, pump housing end is connected with gland, pump shaft outer wall also with V-shaped seal ring and
Felt contacts coordinate, and oil input channel is provided with gland, in the pump housing, the lower section of oil input channel be then provided with oil-storing cup, the oil-storing cup
Side wall is connected provided with oil-through-hole with felt, constitutes store oil formula lubricating structure.The plunger pump has used oil-storing cup, can once inject
More lubricating oil is stored, the felt then slow oil suction from oil-storing cup, can so be lubricated with the holding of long period, significantly
Reduce maintenance amount, it is ensured that the performance reliability of plunger pump.
But, there is following defect in the store oil formula lubricating structure of above-mentioned plunger pump：In above-mentioned store oil formula lubricating structure, note
The lubricating oil entered is entered in oil-storing cup by oil input channel, is then entered again from the oil-through-hole in oil-storing cup in felt, that is,
Say, the lubricating oil in oil-through-hole is actually to be flowed to pump shaft direction, then, when disposably injecting more lubricating oil, by
It is limited in felt oil absorption, felt have little time to absorb lubricating oil will easily along felt, slowly seepage flow, on pump shaft, works as pump
When axle is rotated, these flow to the lubricating oil on pump shaft be easy for being thrown to it is close between pump shaft, gland, V-shaped seal ring and the pump housing
Envelope is oozed out in gap, so as to cause plunger pump oil leakage phenomenon occur.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of lubrication system of plunger pump,
Present invention solves the technical problem that be how to ensure an oiling can to plunger carry out pcrmanent lubrication while so that lubricating oil
It is not easy seepage occur.
The purpose of the present invention can be realized by following technical proposal：A kind of lubrication system of plunger pump, the plunger pump
Plunger including the pump housing and in the pump housing, it is characterised in that the lubrication system include be arranged on pump housing top oil filler point,
It is positioned in the pump housing and is set in the lubrication felt collar on plunger and is arranged on the oil leaking hole of pump housing bottom, the lubrication felt collar is used
Oil absorption material is made and kept off between oil filler point and oil leaking hole, and the oil storage communicated with oil leaking hole is provided with below the oil leaking hole
There is oil suction portion one, the oil suction portion one is through oil leaking hole and extend into oil storage tank on groove, the lubrication felt collar.
Prior art is different from, the operation principle of the lubrication system of this plunger pump is：When lubricating oil injects from oil filler point,
Because lubrication felt collar is made of oil absorption material and is kept off between oil filler point and oil leaking hole, lubricating oil can be flowed into from oil filler point
Absorbed on lubrication felt collar and by lubrication felt collar, when lubricating felt collar oil suction saturation, pass through the oil suction portion designed on lubrication felt collar
One, oil suction portion one is through oil leaking hole and extend into oil storage tank, and such spare absorption can be along lubrication not the lubricating oil fallen
Felt collar is simultaneously flowed into oil storage tank under the guide effect in oil suction portion one, that is to say, that pass through oil filler point, lubrication felt collar, oil leak
The design in oil suction portion one in Position Design and lubrication felt collar between hole, oil storage tank, can material is thus formed one
Control the Oil Guide path of lubricating oil trend so that the lubricating oil in this lubrication system is not easy to flow to the other positions in the pump housing,
And lubrication felt collar and oil storage tank can be flowed to, so allowing for lubricating oil is not easy to go out from the other positions seepage of the pump housing, also makes
A large amount of lubricating oil can once be injected when in use and be not easy to leak by obtaining this plunger pump, advantageously reduce the note of plunger pump
The oily frequency；Meanwhile, rotated with the high speed of plunger pump, unsaturated state is in when the lubricating oil on lubrication felt collar is consumed
When, now oil suction portion one can absorb lubricating oil into lubrication felt collar body from oil storage tank, that is to say, that only need to once inject
Enough lubricating oil, it becomes possible to ensure that lubrication felt collar is enduringly in saturation state, so as to ensure that lubrication felt collar is held to plunger
Lubrication, advantageously reduces the oiling frequency of plunger pump long；Therefore, by above-mentioned lubrication system, this plunger pump can once inject
A large amount of lubricating oil, can not only ensure the persistence of plunger lubrication, ensure that lubricating oil is not easy seepage occur again.
In the lubrication system of above-mentioned plunger pump, the lubrication felt collar is annular in shape, and the oil suction portion one is in strip and suction
The length in oily portion one is more than the radial thickness of lubrication felt collar body.To the Design of length in oil suction portion one more than, it can extend
Lubricate the oil suction time of felt collar oil suction from oil storage tank, so that lubrication felt collar can keep more suitable oil reserve, keep away
Exempt from oil reserve excessively to cause to get rid of oily phenomenon, so as to further prevent lubricating oil from seepage occur.
In the lubrication system of above-mentioned plunger pump, also there is the oil suction extended to oil filler point direction on the lubrication felt collar
Portion two, the oil suction portion two is resisted against at the aperture of oil filler point lower end.The design in above-mentioned oil suction portion two, will can flow out from oil filler point
Lubricating oil importeding into lubrication felt collar completely, then oil suction portion one on lubrication felt collar is oriented to oil storage tank, so as to avoid portion
The other positions that lubricating oil of sharing in the benefit is flowed at the aperture of oil filler point lower end in the pump housing, and then further such that in this lubrication system
Lubricating oil be not easy seepage occur.
In the lubrication system of above-mentioned plunger pump, the lubrication felt collar is annular in shape, the oil suction portion one and oil suction portion two
On the outer peripheral face for being respectively positioned on lubrication felt collar, and the oil suction portion one and oil suction portion two are located at the same diametric(al) of lubrication felt collar
On.To the Position Design in oil suction portion one and oil suction portion two more than, no matter lubricating oil is seeped into oil suction portion two from oil suction portion one, also
It is to be seeped into oil suction portion one from oil suction portion two, ensure that the permeability of lubrication felt collar two halves is uniform, so that in lubrication felt collar
Lubricating oil storage is uniform, so that rub uneven when avoiding lubrication felt collar with plunger contact and cause service life to decline, Jin Eryou
Beneficial to the persistence improved to plunger lubrication.
In the lubrication system of above-mentioned plunger pump, the lubrication felt collar is annular in shape, and the oil suction portion two is in strip and suction
The length in oily portion two is less than the radial thickness of lubrication felt collar body.To the Design of length in oil suction portion two more than, it can shorten
Lubricate the oil suction time of felt collar oil suction from oil filler point so that lubrication felt collar rapidly can reach the absorption of oil filler point full
With so not only contribute to improve oil injecting speed, and have little time to absorb and cause profit when a large amount of lubricating oil can be avoided to inject
Lubricating oil flows to the other positions in the pump housing and permeability phenomenon occurs.
In the lubrication system of above-mentioned plunger pump, felt collar fixed cover is fixed with the pump housing, the plunger is located in
In the felt collar fixed cover, the felt collar fixed cover is got lodged between oil filler point and oil leaking hole, the end of described felt collar fixed cover one end
Portion have respectively the limit notch one that is communicated with oil leaking hole and with oil filler point limit notch two, on the inwall of the felt collar fixed cover
With baffle ring portion, the lubrication felt collar is located in the port of felt collar fixed cover one end, and the oil suction portion one passes through limit notch one
And extend into oil leaking hole, the oil suction portion two is through limit notch two and gets lodged at the aperture of oil filler point lower end, the lubrication felt
The side of circle is resisted against in baffle ring portion, and the opposite side of the lubrication felt collar is resisted against in the housing in the pump housing.Above-mentioned felt collar is fixed
Set is used for the position of fixed lubrication felt collar, because felt collar fixed cover is got lodged between oil filler point and oil leaking hole, so that oil filler point
The Oil Guide path that interior lubricating oil can only be made up of oil suction portion two, lubrication felt collar body, oil suction portion one is entered in oil storage tank,
So lubricating oil can be further avoided to go to the other positions of the pump housing and permeability phenomenon occur.
In the lubrication system of above-mentioned plunger pump, the pump housing includes crankcase and the cylinder being connected on crankcase
Body, one end of the plunger is located in cylinder body, and the other end of the plunger is located in crankcase, the oil filler point and oil leaking hole
It is respectively positioned on crankcase, the felt collar fixed cover and lubrication felt collar are respectively positioned in crankcase, and the oil storage tank is fixed on song
On axle box, gasket seal is provided between the crankcase and cylinder body, the side of the lubrication felt collar is resisted against baffle ring portion
On, the opposite side of the lubrication felt collar is resisted against on gasket seal.Because lubrication felt collar is close to the junction of crankcase and cylinder body,
By the setting of above sealing gasket, the sealing between crankcase, plunger, cylinder body is improved, so that on lubrication felt collar
Lubricating oil be not easy to ooze out at this.
In the lubrication system of above-mentioned plunger pump, the oil absorption material is wool, cotton or wood pulp cellulose.According to reality
Need flexibly select above-mentioned oil absorption material.
Compared with prior art, the lubrication system of this plunger pump has advantages below：This lubrication system is by designing oiling
Hole, lubrication felt collar, oil leaking hole, oil storage tank with oil suction portion one and oil suction portion two so that lubricating oil of this lubrication system is just
Lasting lubrication can be carried out to plunger, so that the oiling frequency can greatly reduce, the maintenance of plunger pump is reduced
Amount, while ensure that lubricating oil is not easy seepage occur when once injecting a large amount of lubricating oil.
Brief description of the drawings
Fig. 1 is the overall structure diagram of this plunger pump.
Fig. 2 is the cross section structure diagram one of lubrication system in this plunger pump.
Fig. 3 is the cross section structure diagram two of lubrication system in this plunger pump.
Fig. 4 is the cross section structure diagram three of lubrication system in this plunger pump.
Fig. 5 is the part exploded perspective view of lubrication system in this plunger pump.
Fig. 6 be this plunger pump lubrication system in lubricate felt collar structural representation.
Fig. 7 be this plunger pump lubrication system in felt collar fixed cover structural representation.
In figure, 1, the pump housing；11st, crankcase；12nd, cylinder body；2nd, plunger；3rd, oil filler point；4th, felt collar is lubricated；41st, oil suction portion
One；42nd, oil suction portion two；5th, oil leaking hole；6th, oil storage tank；7th, felt collar fixed cover；71st, limit notch one；72nd, limit notch two；73、
Baffle ring portion；8th, gasket seal.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Specifically, as shown in Figure 1 and Figure 4, this plunger pump includes the pump housing 1 and the plunger 2 in the pump housing 1.The pump housing 1 is wrapped
Include crankcase 11 and the cylinder body 12 being connected on crankcase 11, one end of plunger 2 is located in cylinder body 12, plunger 2 it is another
End is located in crankcase 11.As shown in Figures 2 and 3, this lubrication system includes the oil filler point for being arranged on the top of crankcase 11
3rd, it is positioned in crankcase 11 and is set in the lubrication felt collar 4 on plunger 2 and is arranged on the oil leaking hole of the bottom of crankcase 11
5, lubrication felt collar 4 is made and kept off between oil filler point 3 and oil leaking hole 5 using oil absorption materials such as wool, cotton or wood pulp celluloses.Leakage
The lower section of oilhole 5 is provided with the oil storage tank 6 communicated with oil leaking hole 5, and oil storage tank 6 is fixed on crankcase 11.
Again as shown in Figure 3 and Figure 6, lubrication felt collar 4 is annular in shape, and has oil suction portion 1, oil suction portion one on lubrication felt collar 4
41 pass through oil leaking hole 5 and extend into oil storage tank 6.Lubricating also has the oil suction portion two extended to the direction of oil filler point 3 on felt collar 4
42, oil suction portion 2 42 is resisted against at the lower end aperture of oil filler point 3.Wherein, oil suction portion 1 is in strip and the length in oil suction portion 1
More than the radial thickness of the lubrication body of felt collar 4.Oil suction portion 2 42 is also less than lubrication felt collar 4 in the length in strip and oil suction portion 2 42
The radial thickness of body.Oil suction portion 1 and oil suction portion 2 42 are respectively positioned on the outer peripheral face of lubrication felt collar 4, and the oil suction portion one
41 and oil suction portion 2 42 be located at lubrication felt collar 4 same diametric(al) on.Lubricate the body of felt collar 4, oil suction portion 1 and oil suction portion
The axial width of 2 42 threes is identical.
More specifically, as shown in Fig. 4, Fig. 5 and Fig. 7, felt collar fixed cover 7 is fixed with crankcase 11, plunger 2 is located in
In felt collar fixed cover 7, felt collar fixed cover 7 is got lodged between oil filler point 3 and oil leaking hole 5.The end of the one end of felt collar fixed cover 7 has respectively
There are the limit notch 1 communicated with oil leaking hole 5 and the limit notch 2 72 communicated with oil filler point 3.The inwall of felt collar fixed cover 7
It is upper that there is baffle ring portion 73, gasket seal 8 is provided between crankcase 11 and cylinder body 12, lubrication felt collar 4 is located at felt collar fixed cover 7
In the port of one end, the side of lubrication felt collar 4 is resisted against in baffle ring portion 73, and the opposite side of lubrication felt collar 4 is resisted against gasket seal 8
On.Oil suction portion 1 is through limit notch 1 and extend into oil leaking hole 5, and oil suction portion 2 42 is through limit notch 2 72 and blocks up
At the lower end aperture of oil filler point 3.
In addition, it is necessary to which explanation, this theory is not only limited on understanding the shape that felt collar 4 is lubricated in the present embodiment
Circular disclosed in bright book accompanying drawing, the lubrication felt collar 4 annularly is appreciated that to merge the bag formed by two semi-rings
The cyclic structure being rolled on the outer peripheral face of plunger 2 or other be wrapped in and the broad sense of tubular shape is formed on the outer peripheral face of plunger 2 prolong
Stretch understanding；Meanwhile, understand on the shape to oil suction portion 1 and oil suction portion 2 42 in the present embodiment and be also not only limited to this
Vertical bar shape disclosed in Figure of description, the oil suction portion 1, oil suction portion 2 42 in strip can be understood as away from lubrication felt collar 4 to
The curved strip shape of outer extension irregular has profiled shape for the trend that stretches out etc..
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more used herein the pump housing 1, crankcase 11, cylinder body 12, plunger 2, oil filler point 3, lubrication felt collar 4,
Oil suction portion 1, oil suction portion 2 42, oil leaking hole 5, oil storage tank 6, felt collar fixed cover 7, limit notch 1, limit notch 2 72,
The terms such as baffle ring portion 73, gasket seal 8, but it is not precluded from the possibility using other terms.The use of these terms is only to be
More easily describe and explain the essence of the present invention；Being construed as any additional limitation is all and present invention essence
What god disagreed.
Claims (7)
1. a kind of lubrication system of plunger pump, the plunger pump includes the pump housing (1) and the plunger (2) in the pump housing (1), it is special
Levy and be, the lubrication system includes being arranged on the oil filler point (3) on the pump housing (1) top, be positioned in the pump housing (1) and being set in post
Fill in the lubrication felt collar (4) on (2) and be arranged on the oil leaking hole (5) of the pump housing (1) bottom, the lubrication felt collar (4) uses oil suction material
Material is made and kept off between oil filler point (3) and oil leaking hole (5), is provided with and is communicated with oil leaking hole (5) below the oil leaking hole (5)
Oil storage tank (6), there is on lubrication felt collar (4) oil suction portion one (41), the oil suction portion one (41) through oil leaking hole (5) simultaneously
It extend into oil storage tank (6).
2. the lubrication system of plunger pump according to claim 1, it is characterised in that the lubrication felt collar (4) annularly, institute
State the radial thickness that oil suction portion one (41) is more than lubrication felt collar (4) body in the length in strip and oil suction portion one (41).
3. the lubrication system of plunger pump according to claim 1 or 2, it is characterised in that also have on the lubrication felt collar (4)
The oil suction portion two (42) of oriented oil filler point (3) direction extension, the oil suction portion two (42) is resisted against oil filler point (3) lower end aperture
Place.
4. the lubrication system of plunger pump according to claim 3, it is characterised in that the lubrication felt collar (4) annularly, institute
State oil suction portion one (41) and oil suction portion two (42) be respectively positioned on the outer peripheral face of lubrication felt collar (4), and the oil suction portion one (41) and
Oil suction portion two (42) is located in the same diametric(al) of lubrication felt collar (4).
5. the lubrication system of plunger pump according to claim 3, it is characterised in that the lubrication felt collar (4) annularly, institute
State the radial thickness that oil suction portion two (42) is less than lubrication felt collar (4) body in the length in strip and oil suction portion two (42).
6. the lubrication system of plunger pump according to claim 3, it is characterised in that be fixed with felt collar in the pump housing (1)
Fixed cover (7), the plunger (2) is located in the felt collar fixed cover (7), and the felt collar fixed cover (7) gets lodged in oil filler point (3)
Between oil leaking hole (5), the end of described felt collar fixed cover (7) one end has the limit notch communicated with oil leaking hole (5) respectively
There is baffle ring portion on one (71) and the limit notch two (72) communicated with oil filler point (3), the inwall of the felt collar fixed cover (7)
(73), the lubrication felt collar (4) is located in the port of felt collar fixed cover (7) one end, and the oil suction portion one (41) passes through spacing recessed
One (71) of mouth are simultaneously extend into oil leaking hole (5), and the oil suction portion two (42) is through limit notch two (72) and gets lodged in oil filler point (3)
At the aperture of lower end, the side of the lubrication felt collar (4) is resisted against in baffle ring portion (73), and the opposite side of the lubrication felt collar (4) is supported
Lean against in the housing in the pump housing (1).
7. the lubrication system of plunger pump according to claim 6, it is characterised in that the pump housing (1) includes crankcase
(11) and the cylinder body (12) that is connected on crankcase (11), one end of the plunger (2) is located in cylinder body (12), the plunger
(2) the other end is located in crankcase (11), and the oil filler point (3) and oil leaking hole (5) are respectively positioned on crankcase (11), institute
State felt collar fixed cover (7) and lubrication felt collar (4) is respectively positioned in crankcase (11), the oil storage tank (6) is fixed on crankcase
(11) on, gasket seal (8), the side of the lubrication felt collar (4) are provided between the crankcase (11) and cylinder body (12)
It is resisted against in baffle ring portion (73), the opposite side of the lubrication felt collar (4) is resisted against on gasket seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646767.5A CN107191368B (en) | 2017-08-01 | 2017-08-01 | Lubricating structure of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646767.5A CN107191368B (en) | 2017-08-01 | 2017-08-01 | Lubricating structure of plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191368A true CN107191368A (en) | 2017-09-22 |
| CN107191368B CN107191368B (en) | 2020-09-18 |
Family
ID=59884121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710646767.5A Active CN107191368B (en) | 2017-08-01 | 2017-08-01 | Lubricating structure of plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191368B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07250448A (en) * | 1994-03-11 | 1995-09-26 | Matsushita Electric Ind Co Ltd | Motor |
| CN203470629U (en) * | 2013-07-30 | 2014-03-12 | 上海宝钢制盖有限公司 | Sealing recovery device for lubricating oil of cap-forming punching machine |
| CN204061159U (en) * | 2014-06-11 | 2014-12-31 | 浙江欧耀机械有限公司 | The lubricating fitting of plungers pump plunger |
| CN206111531U (en) * | 2016-09-29 | 2017-04-19 | 王蓬勃 | Lubricated adjusting press cap of plunger pump packing seal |
| CN207018189U (en) * | 2017-08-01 | 2018-02-16 | 邱永祥 | A kind of lubrication system of plunger pump |
-
2017
- 2017-08-01 CN CN201710646767.5A patent/CN107191368B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07250448A (en) * | 1994-03-11 | 1995-09-26 | Matsushita Electric Ind Co Ltd | Motor |
| CN203470629U (en) * | 2013-07-30 | 2014-03-12 | 上海宝钢制盖有限公司 | Sealing recovery device for lubricating oil of cap-forming punching machine |
| CN204061159U (en) * | 2014-06-11 | 2014-12-31 | 浙江欧耀机械有限公司 | The lubricating fitting of plungers pump plunger |
| CN206111531U (en) * | 2016-09-29 | 2017-04-19 | 王蓬勃 | Lubricated adjusting press cap of plunger pump packing seal |
| CN207018189U (en) * | 2017-08-01 | 2018-02-16 | 邱永祥 | A kind of lubrication system of plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107191368B (en) | 2020-09-18 |
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