CN106286186A - The drive mechanism of the plunger connecting rod of plunger displacement pump - Google Patents
The drive mechanism of the plunger connecting rod of plunger displacement pump Download PDFInfo
- Publication number
- CN106286186A CN106286186A CN201610087894.1A CN201610087894A CN106286186A CN 106286186 A CN106286186 A CN 106286186A CN 201610087894 A CN201610087894 A CN 201610087894A CN 106286186 A CN106286186 A CN 106286186A
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- CN
- China
- Prior art keywords
- plunger
- connecting rod
- bearing
- mat
- needle roller
- 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.)
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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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
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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
- F04B53/02—Packing the free space between cylinders and pistons
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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
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to plunger pump technique field, refer in particular to the drive mechanism of the plunger connecting rod of a kind of plunger displacement pump, including plunger mat and connecting rod, connecting rod one end is outfan, the outfan of described connecting rod stretches into plunger mat rear end hinged with plunger mat, the front end of plunger mat is provided with plunger, the outfan of described connecting rod is provided with self-lubricating bearing installation position, self-lubricating bearing is provided with bearing holder (housing, cover) in installation position, the central authorities of bearing holder (housing, cover) are equipped with a bearing pin, the two ends projecting shaft bearing sleeve of bearing pin is also arranged in plunger mat, bearing pin week side and bearing holder (housing, cover) inwall between be densely covered with the ceramic needle roller of a circle；Being respectively installed with back-up ring on the bearing pin at described pottery needle roller two ends, back-up ring is folded between pottery needle roller and plunger mat inwall and stops the end contact plunger mat of pottery needle roller.This design make pottery needle roller will not contact plunger, thus avoid pottery needle roller and broken by plunger mat card so that overall service life is strengthened.
Description
Technical field
The invention belongs to plunger pump technique field, refer in particular to the drive mechanism of the plunger connecting rod of a kind of plunger displacement pump.
Background technology
The portion of applicant discloses a kind of plunger oil-free high-pressure pump in first patent ZL 200920188760.4, in the pump housing
Being provided with the plunger pressurized construction driven by pump shaft, eccentric ring, bearing, connecting rod, plunger, plunger bushing etc., plunger pressurized construction is:
At least two connecting rods are spaced and are co-axially located in parallel to each other on pump main shaft, and described connecting rod is installed on bearing, and bearing is solid
Being located on eccentric bushing, eccentric bushing is fixed on pump main shaft, and the other end of connecting rod is hinged with plunger, and plunger is arranged on the cavity of the pump housing
In, between the pump housing and plunger, it is provided with self-lubricating plunger bushing, is provided with water shutoff circle and pad in the end of plunger and the contact position of pump head
Sheet, advantage is: simple in construction, pollution-free, high pressure, high efficiency, service life are long.Applicant during production and sales,
Find that the bearing between connecting rod and plunger is easily damaged.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, the drive mechanism of the plunger connecting rod of safe and reliable plunger displacement pump.
The object of the present invention is achieved like this:
The drive mechanism of the plunger connecting rod of plunger displacement pump, including plunger mat and connecting rod, connecting rod one end is outfan, described connecting rod
Outfan stretch into plunger mat rear end hinged with plunger mat, the front end of plunger mat is provided with plunger, the outfan of described connecting rod
Being provided with self-lubricating bearing installation position, be provided with bearing holder (housing, cover) in self-lubricating bearing installation position, the central authorities of bearing holder (housing, cover) are equipped with one
Bearing pin, the two ends projecting shaft bearing sleeve of bearing pin is also arranged in plunger mat, bearing pin week side and bearing holder (housing, cover) inwall between be densely covered with a circle
Ceramic needle roller；Being respectively installed with back-up ring on the bearing pin at described pottery needle roller two ends, back-up ring is folded in pottery needle roller and plunger mat
Between inwall and stop pottery needle roller end contact plunger mat.
Being set with oil seal ring on bearing pin outside described back-up ring, the periphery of described oil seal ring is provided with O, O and
The inwall laminating of self-lubricating bearing installation position.
Described plunger mat rear end is provided with endoporus, and the outfan of connecting rod stretches into endoporus and is hinged on the middle part of plunger mat；Institute
Stating plunger mat to be located on plunger bushing, plunger bushing is fixedly mounted in the pump housing.
The front end of described plunger mat and back segment are provided with stage portion, and stage portion is set with guide pin bushing, the outer wall of guide pin bushing and post
Plug sleeve inwall is slidably matched.
Present invention also offers the drive mechanism of the plunger connecting rod of another kind of plunger displacement pump, including plunger mat and connecting rod, connecting rod
One end is outfan, and the outfan of described connecting rod stretches into plunger mat rear end hinged with plunger mat, and the front end of plunger mat is provided with
Plunger, the outfan of described connecting rod is provided with self-lubricating bearing installation position, is provided with self-lubricating axle in self-lubricating bearing installation position
Holding, described self-lubricating bearing is made up of outer bearing sleeve, internal bearing sleeve and several pottery needle rollers；Described outer bearing sleeve and inner bearing
Set arranged concentric, is densely covered with the described pottery needle roller of a circle between outer bearing sleeve and internal bearing sleeve；The bearing pin at pottery needle roller two ends
On be respectively installed with back-up ring, back-up ring be folded in pottery needle roller and plunger mat inwall between and stop pottery needle roller end contact post
Obturating plug.
The thickness of the length >=back-up ring stretching out outer bearing sleeve of described internal bearing sleeve；Described shield ring sleeve is contained in internal bearing sleeve
Two ends.
Being set with oil seal ring on bearing pin outside described back-up ring, the periphery of described oil seal ring is provided with O, O and
The inwall laminating of self-lubricating bearing installation position.
The present invention highlights and useful having the technical effect that compared to existing technology
The connecting rod of the present invention is by the end of self-lubricating bearing with plunger mat, and self-lubricating bearing is by bearing holder (housing, cover) and several potteries
Porcelain needle roller forms, and it compares plain bearing on the market, and (having the plastic bushing of location needle roller in traditional bearing, it uses one section
Easily ftracture after time), there is simple in construction, advantage easy to assembly, safe and reliable；On the bearing pin at pottery needle roller two ends respectively
Being set with back-up ring, back-up ring is folded between pottery needle roller and plunger mat inwall and stops the end contact plunger mat of pottery needle roller,
This design make pottery needle roller will not contact plunger, thus avoid pottery needle roller and broken by plunger mat card so that overall use
Life-span is strengthened；
On bearing pin outside the back-up ring of the present invention, fixed cover is provided with O equipped with oil seal ring, the periphery of described oil seal ring,
The inwall laminating of O and self-lubricating bearing installation position, two oil seal rings block in the both sides of self-lubricating bearing installation position, and this sets
Meter makes the oils and fats on pottery needle roller to run off, it is ensured that the service life of self-lubricating bearing；
The plunger mat rear end of the present invention is provided with endoporus, and the outfan of connecting rod stretches into endoporus and is hinged in plunger mat
Portion；Described plunger mat is located on plunger bushing, and plunger bushing is fixedly mounted in the pump housing；The outfan of connecting rod is hinged on plunger mat
Middle part makes the operation of plunger mat more stable, has simplified the drive mechanism of plunger mat and connecting rod the most further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of plunger displacement pump.
Fig. 2 is the exploded view of plunger displacement pump.
Fig. 3 is one of internal structure schematic diagram of plunger displacement pump.
Fig. 4 is enlarged drawing at the A of Fig. 3.
Fig. 5 is the two of the internal structure schematic diagram of plunger displacement pump.
Fig. 6 is the B enlarged drawing of Fig. 5.
Fig. 7 is the exploded view of plunger connecting rod drive mechanism.
Fig. 8 is the schematic diagram of main shaft.
Fig. 9 is one of plunger connecting rod drive mechanism schematic diagram of the second embodiment.
Figure 10 is the two of the plunger connecting rod drive mechanism schematic diagram of the second embodiment.
Figure 11 is the plunger connecting rod drive mechanism schematic diagram of the 3rd embodiment.
In figure: 1-input flange；The 2-pump housing；3-pump cover；4-exhalant canal；5-intake tunnel；6-black box；7-post
Plug sleeve；8-connecting rod；9-plunger；10-main shaft；11-bearing；12-eccentric axial portion；13-pottery needle roller；14-bearing holder (housing, cover)；15-back-up ring；
16-jump ring；17-guide pin bushing；18-plunger mat；19-oil seal ring；20-bearing pin；21-clamping screw；22-bearing；23-bayonet lock；24-bullet
Spring；25-auxiliary set；26-water seal；27-drainage channel；28-draining auxiliary set；29-sealing ring；30-water seal；31-drainage channel；32-
Backflow auxiliary set；33-water seal；34-auxiliary set；35-sealing ring；The main water seal of 36-；37-backflash；38-banding set；39-O shape circle；40-
Self-lubricating bearing installation position；41-pin shaft hole position；42-rhone；43-drainage hole；44-backflow through hole；45-outfan；46-
Banding portion；47-base bearing；48-base bearing；49-eccentric axial portion；50-eccentric axial portion；51-tightening cover；52-eccentric axial portion；53-
Pump head；54-cylinder chamber；55-main shaft installation position；56-main shaft installation position；57-card joint chair；
101-clamping screw；102-connecting rod；103-banding set；104-plunger mat；105-outer bearing sleeve；106-pottery rolls
Pin；107-internal bearing sleeve；108-back-up ring；109-bearing pin；110-bearing；111-bearing；112-connecting rod；113-O shape circle；114-oil
Seal ring；115-bearing pin；116-internal bearing sleeve；117-plunger mat；118-pottery needle roller；119-back-up ring；120-outer bearing sleeve.
Detailed description of the invention
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings:
Embodiment one: the drive mechanism of the plunger connecting rod of plunger displacement pump, including plunger mat 18 and connecting rod 8, connecting rod 8 one end is defeated
Going out end 45, the outfan 45 of described connecting rod stretches into plunger mat 18 rear end hinged with plunger mat 18, and the front end of plunger mat is provided with
Plunger 9, the outfan of described connecting rod 8 is provided with self-lubricating bearing installation position 40, is provided with axle in self-lubricating bearing installation position 40
Bearing sleeve 14, the central authorities of bearing holder (housing, cover) 14 are equipped with a bearing pin 20, and the two ends projecting shaft bearing sleeve 14 of bearing pin 20 is also arranged on plunger mat
On 18, between 20 weeks sides of bearing pin and bearing holder (housing, cover) 14 inwall, it is densely covered with the ceramic needle roller 13 of a circle；Described pottery needle roller 13 two ends
Being respectively installed with back-up ring 15 on bearing pin, back-up ring 15 is folded between pottery needle roller and plunger mat inwall and stops pottery needle roller 13
End contact plunger mat 18.
Being set with oil seal ring 19 on bearing pin 20 outside described back-up ring 15, the periphery of described oil seal ring 19 is provided with O
39, the inwall laminating of O and self-lubricating bearing installation position.
Described plunger mat 18 rear end is provided with endoporus, and the outfan of connecting rod stretches into endoporus and is hinged in plunger mat 18
Portion；Described plunger mat 18 is located on plunger bushing 7, and plunger bushing 7 is fixedly mounted in the pump housing 2.
Front end and the back segment of described plunger mat 18 are provided with stage portion, and stage portion is set with guide pin bushing 17, the outer wall of guide pin bushing
It is slidably matched with plunger bushing inwall.
Embodiment two: the drive mechanism of the plunger connecting rod of plunger displacement pump, including plunger mat 104 and connecting rod 102, connecting rod one end is
Outfan, the outfan of described connecting rod stretches into plunger mat rear end hinged with plunger mat 104, and the front end of plunger mat is provided with post
Plug, the outfan of described connecting rod is provided with self-lubricating bearing installation position, and self-lubricating bearing is provided with self-lubricating bearing in installation position,
Described self-lubricating bearing is made up of outer bearing sleeve 105, internal bearing sleeve 107 and several pottery needle rollers 106；Described outer bearing sleeve and
Internal bearing sleeve arranged concentric, is densely covered with the described pottery needle roller 106 of a circle between outer bearing sleeve and internal bearing sleeve；Pottery needle roller two
It is respectively installed with back-up ring 103 on the bearing pin of end, 108, back-up ring is folded between pottery needle roller and plunger mat inwall and stops pottery
The end contact plunger mat 104 of needle roller.
The thickness of the length >=back-up ring 103,108 stretching out outer bearing sleeve 105 of described internal bearing sleeve 107；Described shield ring sleeve
It is contained in the two ends of internal bearing sleeve 107.
Embodiment three: the present embodiment is essentially identical with embodiment two, its difference is, the bearing pin outside described back-up ring
On be set with oil seal ring 114, the periphery of described oil seal ring 114 is provided with O 113, and O 113 and self-lubricating bearing are installed
The inwall laminating of position.
The plunger displacement pump of the drive mechanism of the plunger connecting rod of Application Example one, including pump case, is provided with main shaft 10 in pump case
Several plunger mechanism driven with main shaft 10, the present embodiment is 4；Plunger mechanism includes plunger mat 18 and connecting rod 8, connecting rod one
End is for outfan 45, and the outfan 45 of described connecting rod stretches into plunger mat 18 rear end hinged with plunger mat 18, the front end of plunger mat
Being provided with plunger 9, the outfan of described connecting rod 8 is provided with self-lubricating bearing installation position 40, sets in self-lubricating bearing installation position 40
Being equipped with bearing holder (housing, cover) 14, the central authorities of bearing holder (housing, cover) 14 are equipped with a bearing pin 20, and the two ends projecting shaft bearing sleeve 14 of bearing pin 0 is also arranged on post
On obturating plug 18, between 20 weeks sides of bearing pin and bearing holder (housing, cover) 14 inwall, it is densely covered with the ceramic needle roller 13 of a circle；Described pottery needle roller 13 liang
Being respectively installed with back-up ring 15 on the bearing pin 20 of end, back-up ring 15 is folded between pottery needle roller 13 and plunger mat 18 inwall and stops pottery
The end contact plunger mat 18 of porcelain needle roller 13.Self-lubricating bearing is made up of bearing holder (housing, cover) and several pottery needle rollers, and it compares market
On plain bearing (having the plastic bushing of location needle roller in traditional bearing, it uses after a period of time easily cracking), have
Simple in construction, advantage easy to assembly, safe and reliable, pottery needle roller will not contact plunger, thus avoid pottery needle roller by post
Obturating plug card breaks so that overall service life is strengthened.
Being set with oil seal ring 19 on bearing pin 20 outside described back-up ring 15, the periphery of described oil seal ring 19 is provided with O
39, the inwall laminating of O 39 and self-lubricating bearing installation position 40.Two oil seal rings block in the two of self-lubricating bearing installation position
Side, this design makes the oils and fats on pottery needle roller to run off, it is ensured that the service life of self-lubricating bearing.
Described plunger mat 18 rear end is provided with endoporus, and the outfan of connecting rod stretches into endoporus and is hinged in plunger mat 18
Portion；Described plunger mat 18 is located on plunger bushing 7, and plunger bushing 7 is fixedly mounted in the pump housing 2.The outfan of connecting rod is hinged on post
The middle part of obturating plug makes the operation of plunger mat more stable, has simplified the drive mechanism of plunger mat and connecting rod the most further.
Front end and the back segment of described plunger mat 18 are provided with stage portion, and the step surface of stage portion is provided with external screw thread,
Guide pin bushing 17 rotation is located in stage portion, and the outer wall of guide pin bushing 17 is slidably matched with plunger bushing 7 inwall.Guide pin bushing 17 and plunger bushing 7 are the most permissible
Using rustless steel product or ceramic objects or Engineering Plastics Parts, in the present embodiment, plunger bushing 7 uses rustless steel product, guide pin bushing
17 use Engineering Plastics Parts.
The eccentric axial portion 52 of some sections is formed on described main shaft, 12,49,50, eccentric axial portion is all set with bearing；Institute
The other end stating connecting rod is banding set 38, and banding set 38 is held tightly on corresponding bearing by clamping screw 21.Eccentric axial portion takes
For the eccentric bushing structure in traditional design, thus avoid eccentric bushing and can produce loosening after long-play, cause different
Ring and the defect of abrasion.Meanwhile, connecting rod use banding mode be arranged on the bearing of correspondence so that bearing and main shaft it
Between, cooperation between bearing and connecting rod the most accurate.
The cross section of the eccentric axial portion 52,12,49,50 of each section is the most identical；The eccentric axial portion of existing main shaft is adopted mostly
With the design of different-diameter, the bearing of its coupling also has different specifications, causes the distribution of weight on main shaft uneven, time long
Between operating after, bearing can be moved；Accordingly, it would be desirable to process jump-ring slot in eccentric axial portion, come further by jump ring
Location bearing, but, jump-ring slot can cause the service life reduction of main shaft；The eccentric axial portion 52,12,49,50 of each section of the present invention
Cross section the most identical, the bearing of coupling is also adopted by identical specification, and connecting rod is the most identical, and therefore, during spindle operation, each section is partially
The load that mandrel portion undertakes is identical, and the bearing in eccentric axial portion also will not produce displacement, it is not necessary to traditional jump ring sets
Meter, further increases intensity and the service life of main shaft；It addition, the design that connecting rod uses banding formula to be connected on bearing is also entered
The installation of bearing that one step is easy.
Described pump case includes pump cover 3 and the pump housing 2, in the cylinder chamber 84 that plunger mechanism is arranged in the pump housing；Pump cover 3 and the pump housing 2
Main shaft installation position 55,56 it is respectively provided with on the interface of arranged on left and right sides；Main shaft is arranged on master by the base bearing 47,48 at two ends
Axle installation position 55, on 56, the front side of pump cover is detachably provided with tightening cover 51；When this design makes to install, first main shaft is pacified
It is contained on pump case, is carrying out screwing clamping screw by the window at rear door by locking tool, such that it is able to avoid traditional
In design, the centrage of plunger mat and the centrage off plumb shortcoming of main shaft, the service life of entirety can be greatly improved,
Avoid abnormal sound.
Being provided with the black box 6 coordinated with described plunger 9 in plunger cavity in the described pump housing, black box includes together
Above water seal 36,33,30,26, it is provided with auxiliary set between adjacent twice water seal；One of them auxiliary set is backflow auxiliary set 32, returns
The circumference of stream auxiliary set 32 forms several backflow through hole 44, the pump housing is provided with and the drainage channel 31 of backflow through hole conducting,
Drainage channel 31 connects with the intake tunnel 5 of the pump housing.Being designed to of backflow auxiliary set effectively intercepts the water so that in plunger cavity and oozes
Cross water seal.The water seal of the present invention is Engineering Plastics Parts, and the inner edge of water seal and plunger sidewall are fitted and blocked water.Plunger is ceramic
Part.
One of them auxiliary set is draining auxiliary set 28, and the circumference of draining auxiliary set 28 forms several drainage holes 43, the pump housing
On be provided with and the drainage channel 27 of drainage hole 43 conducting, drainage channel 27 and pump housing ft connection.The design of draining auxiliary set
The current that can intercept further in plunger cavity oozed water seal.
Being provided with four road water seals in the present embodiment altogether, it has thoroughly stopped water in plunger cavity, and to enter the safety of cylinder body hidden
Suffer from.
The rear end of described plunger with the concrete structure of plunger mat clamping is: the rear portion of plunger 9 is provided with jump-ring slot, jump-ring slot
Being provided with jump ring 16 in 47, described plunger mat front end is provided with the card joint chair 57 inserted for plunger, is provided with and card in card joint chair
The stopper slot that spring coordinates；
Or, the rear end of described plunger with the concrete structure of plunger mat clamping is: the rear portion of plunger 9 is provided with card cotter way, card
Being provided with spring 24 in cotter way, the outer end of spring 24 connects has bayonet lock 23, described plunger mat front end to be provided with for plunger insertion
Card joint chair 57, is provided with the stopper slot coordinated with bayonet lock in card joint chair.Its simple in construction, is not easily disconnected from, safe and reliable, it is ensured that
The stable operation of complete machine.In the present embodiment, it is also possible to further when plunger assembles, be first stained with colloid, then snap fits into plunger mat,
Further ensure that stablizing of plunger.
Above-described embodiment is only presently preferred embodiments of the present invention, limits the scope of the invention the most according to this, therefore: all depend on
The equivalence change that the structure of the present invention, shape, principle are done, within all should being covered by protection scope of the present invention.
Claims (7)
1. the drive mechanism of the plunger connecting rod of plunger displacement pump, it is characterised in that include plunger mat and connecting rod, connecting rod one end is output
End, the outfan of described connecting rod stretches into plunger mat rear end hinged with plunger mat, and the front end of plunger mat is provided with plunger, described company
The outfan of bar is provided with self-lubricating bearing installation position, is provided with bearing holder (housing, cover) in self-lubricating bearing installation position, the central authorities of bearing holder (housing, cover)
Being equipped with a bearing pin, the two ends projecting shaft bearing sleeve of bearing pin is also arranged in plunger mat, bearing pin week side and bearing holder (housing, cover) inwall between
It is densely covered with the ceramic needle roller of a circle；Being respectively installed with back-up ring on the bearing pin at described pottery needle roller two ends, back-up ring is folded in pottery rolling
Between pin and plunger mat inwall and stop pottery needle roller end contact plunger mat.
The drive mechanism of the plunger connecting rod of plunger displacement pump the most according to claim 1, it is characterised in that outside described back-up ring
Being set with oil seal ring on bearing pin, the periphery of described oil seal ring is provided with O, O and the inwall of self-lubricating bearing installation position
Laminating.
The drive mechanism of the plunger connecting rod of plunger displacement pump the most according to claim 1, it is characterised in that described plunger mat rear end
Being provided with endoporus, the outfan of connecting rod stretches into endoporus and is hinged on the middle part of plunger mat；Described plunger mat is located on plunger bushing,
Plunger bushing is fixedly mounted in the pump housing.
The drive mechanism of the plunger connecting rod of plunger displacement pump the most according to claim 3, it is characterised in that before described plunger mat
End and back segment are provided with stage portion, and stage portion is set with guide pin bushing, and the outer wall of guide pin bushing is slidably matched with plunger bushing inwall.
5. the drive mechanism of the plunger connecting rod of plunger displacement pump, it is characterised in that include plunger mat and connecting rod, connecting rod one end is output
End, the outfan of described connecting rod stretches into plunger mat rear end hinged with plunger mat, and the front end of plunger mat is provided with plunger, described company
The outfan of bar is provided with self-lubricating bearing installation position, is provided with self-lubricating bearing in self-lubricating bearing installation position, described from profit
Plain besring is made up of outer bearing sleeve, internal bearing sleeve and several pottery needle rollers；Described outer bearing sleeve and internal bearing sleeve arranged concentric,
The described pottery needle roller of a circle it is densely covered with between outer bearing sleeve and internal bearing sleeve；It is respectively installed with on the bearing pin at pottery needle roller two ends
Back-up ring, back-up ring is folded between pottery needle roller and plunger mat inwall and stops the end contact plunger mat of pottery needle roller.
The drive mechanism of the plunger connecting rod of plunger displacement pump the most according to claim 5, it is characterised in that described internal bearing sleeve
Stretch out the thickness of the length >=back-up ring of outer bearing sleeve；Described shield ring sleeve is contained in the two ends of internal bearing sleeve.
The drive mechanism of the plunger connecting rod of plunger displacement pump the most according to claim 6, it is characterised in that outside described back-up ring
Being set with oil seal ring on bearing pin, the periphery of described oil seal ring is provided with O, O and the inwall of self-lubricating bearing installation position
Laminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087894.1A CN106286186A (en) | 2016-02-16 | 2016-02-16 | The drive mechanism of the plunger connecting rod of plunger displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087894.1A CN106286186A (en) | 2016-02-16 | 2016-02-16 | The drive mechanism of the plunger connecting rod of plunger displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286186A true CN106286186A (en) | 2017-01-04 |
Family
ID=57651230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610087894.1A Pending CN106286186A (en) | 2016-02-16 | 2016-02-16 | The drive mechanism of the plunger connecting rod of plunger displacement pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN106286186A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112086840A (en) * | 2019-06-14 | 2020-12-15 | 赛峰起落架系统英国有限公司 | Self-lubricating conductive bearing piece |
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