CN108386702B - Reciprocating pneumatic valve and cylinder and grease pump adopting same - Google Patents
Reciprocating pneumatic valve and cylinder and grease pump adopting same Download PDFInfo
- Publication number
- CN108386702B CN108386702B CN201810415755.6A CN201810415755A CN108386702B CN 108386702 B CN108386702 B CN 108386702B CN 201810415755 A CN201810415755 A CN 201810415755A CN 108386702 B CN108386702 B CN 108386702B
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- 239000004519 grease Substances 0.000 title claims abstract description 76
- 238000007789 sealing Methods 0.000 claims abstract description 145
- 238000004891 communication Methods 0.000 claims description 50
- 238000003825 pressing Methods 0.000 claims description 39
- 238000003860 storage Methods 0.000 claims description 24
- 230000007704 transition Effects 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 2
- 230000033001 locomotion Effects 0.000 abstract description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000036632 reaction speed Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 12
- 235000014121 butter Nutrition 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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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
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
- F16N13/06—Actuation of lubricating-pumps
- F16N13/16—Actuation of lubricating-pumps with fluid drive
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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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/22—Lubricating-pumps with distributing equipment
-
- 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
- F16N—LUBRICATING
- F16N25/00—Distributing equipment with or without proportioning devices
- F16N25/02—Distributing equipment with or without proportioning devices with reciprocating distributing slide valve
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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
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/16—Pumps
-
- 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
- F16N—LUBRICATING
- F16N2280/00—Valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a pneumatic valve, in particular to a reciprocating pneumatic valve, a cylinder and a grease pump adopting the valve, wherein the reciprocating pneumatic valve comprises a main valve body, a reversing core rod, a left valve body and a right valve body, wherein the left valve body and the right valve body are respectively fixed on two sides of the main valve body, and the reversing core rod is movably arranged in a reversing core hole of the main valve body. The reciprocating pneumatic valve provided by the invention has the advantages of simple structure, reliable operation, low processing cost, convenient use, automatic reciprocation of the cylinder, simple and practical structure, separation of the reversing valve and the air inlet and outlet channels from the piston, no occupation of the piston movement space, high reaction speed, small occupation space, small volume, low manufacturing cost, low energy consumption, long service life, good sealing effect of the cylinder and convenient assembly and maintenance. The grease pump has the advantages of simple and reliable structure, realization of simultaneous oil absorption and grease injection, difficult blockage, no influence of temperature on oil absorption and grease injection and high efficiency.
Description
Technical Field
The invention relates to a pneumatic valve, in particular to a reciprocating pneumatic valve, and a cylinder and a grease pump adopting the valve.
Background
The piston linear reciprocating cylinder uses compressed air as energy source to convert the compressed air energy into mechanical energy, and is used as reciprocating actuating element in pneumatic system, and the cylinder is used to overcome load to drive element to move.
The prior art has two types of cylinders, namely a single-acting cylinder and a double-acting cylinder, and the cylinders are mutually independent air valves for controlling the movement of pistons of the cylinders. The single-acting cylinder is used for air intake at one side of the cylinder, the piston is reset by the thrust of a spring arranged at the other side of the cylinder, and the automatic reciprocating motion of the piston can not be realized under the condition that the cylinder is inflated; the double-acting cylinder can realize the reciprocating motion of the piston by continuously converting the air inlet and outlet directions of the cylinder, and the operation process is complex.
Therefore, when the two types of cylinder driving elements are adopted to do reciprocating linear motion, the reciprocating linear motion can be realized by being connected with a special automatic control system, so that the cylinder system has a complex structure and high manufacturing cost.
The existing automatic reciprocating cylinder is characterized in that a reversing valve and an air inlet and outlet pipeline are arranged outside the cylinder, so that the cylinder is complex in appearance, large in occupied space, inconvenient to install and high in cost. The device cannot be used in occasions with small space, and has more connection points of the air inlet and exhaust pipelines, namely more leakage points, and is relatively complex to maintain.
An automatic linear reciprocating cylinder disclosed in chinese patent CN103256273a controls the communication relationship among the first air chamber, the second air chamber and the third air chamber through a valve core, a valve core positioning device and a valve core reversing device which are arranged on the piston, so that the automatic linear reciprocating motion of the piston is realized under the condition of continuously inflating the cylinder and without other control devices, but the valve is arranged on the piston head, so that the inner cavity of the cylinder body is impacted in motion, the motion stability is poor, the internal structure is too complex, the processing cost is too high, and the use performance is unstable.
The existing grease pump mostly adopts a mode of extruding oil, after the oil in a liquid state naturally flows into an oil inlet at the bottom of an outer sleeve of the grease pump, a lifting plate arranged at the bottom of the outer sleeve of the grease pump pumps the oil to the outside in a one-to-one mode through extruding force, for example, a pneumatic grease pump disclosed in Chinese patent CN201884914U comprises a gas distribution body and a gas chamber cover assembly, wherein the top of the gas distribution body is connected with one end of a gas pipe, and the other end of the gas pipe is connected with the gas chamber cover assembly; the air chamber cover assembly comprises an air chamber cover, wherein an air distribution paper pad, an air distribution valve seat and a limiting plate are sequentially arranged in the air chamber cover from inside to outside, and an air distribution sliding block is arranged in the limiting plate; one side of the limiting plate is provided with a damping spring piece, and the damping spring piece, the limiting plate, the air distribution valve seat and the air distribution paper pad are fixedly arranged in the air chamber cover through hexagonal screws; the damping spring piece is sleeved on the air distribution slide block; the air chamber cover is fixedly connected to the upper portion of the air distribution body through the inner hexagon screw, the air chamber cover assembly is fixedly connected with the air distribution body, the grease pump adopts an oil inlet mode of naturally flowing into the oil inlet, the oil inlet mode is influenced by the fluidity of oil, if the fluidity of the oil in a low-temperature state is poor, the oil cannot naturally flow into the oil inlet, the lifting plate on the grease pump cannot convey the oil to the upper portion, the grease pump cannot be used in a lower-temperature environment, meanwhile, the air distribution slide block needs to continuously slide, grease pumping faults are caused by easy abrasion, the grease pump cannot work normally, and the air distribution slide block needs to be replaced frequently for maintenance.
Disclosure of Invention
In order to solve the problems, the invention provides a reciprocating pneumatic valve with simple structure, convenient use and low cost, and a cylinder and a grease pump adopting the valve, and the specific technical scheme is as follows:
the reciprocating pneumatic valve comprises a main valve body, a reversing core rod, a left valve body and a right valve body, wherein the left valve body and the right valve body are respectively fixed on two sides of the main valve body, and the reversing core rod is movably arranged in a reversing core hole of the main valve body; the top of the main valve body is provided with an air inlet, the bottom of the main valve body is provided with a left air outlet, a left reversing hole, a right air outlet and a right reversing hole, and the side surface of the main valve body is provided with a left air outlet and a right air outlet; the reversing core rod is communicated with the air inlet and the right air outlet and the left air outlet when at one side of the left valve body, and is communicated with the air inlet and the left air outlet and the right air outlet when at one side of the right valve body; one end of the left valve body is provided with a left valve plug hole and a left communication hole, the left valve plug hole and the reversing core hole are on the same axis, a left valve plug is movably arranged in the left valve plug hole, the bottom of the left valve plug hole is communicated with the left communication hole, the left communication hole is communicated with the right reversing hole, and the left valve plug pushes the reversing core rod to move rightwards; and one end of the right valve body is provided with a right valve plug hole and a right communication hole, the right valve plug hole and the reversing core hole are on the same axis, a right valve plug is movably arranged in the right valve plug hole, the bottom of the right valve plug hole is communicated with the right communication hole, the right communication hole is communicated with the left reversing hole, and the right valve plug pushes the reversing core rod to move leftwards.
Preferably, an air inlet groove, a left air outlet groove and a left air outlet groove which are positioned at one side of the air inlet groove, and a right air outlet groove which are positioned at the other side of the air inlet groove are arranged in the reversing core hole; the air inlet groove, the left air outlet groove, the right air outlet groove and the right air outlet groove are annular grooves, the air inlet groove is communicated with the air inlet hole, the left air outlet groove is communicated with the left air outlet hole, the right air outlet groove is communicated with the right air outlet hole, and the right air outlet groove is communicated with the right air outlet hole; the reversing mandrel is provided with a left end sealing ring, a left exhaust sealing ring, a left air inlet sealing ring, a right exhaust sealing ring, a right end sealing ring, a left communication groove and a right communication groove, wherein the left communication groove is positioned between the left exhaust sealing ring and the left air inlet sealing ring, and the right communication groove is positioned between the right air inlet sealing ring and the right exhaust sealing ring; the left end sealing ring seals the left end of the reversing core hole, the left exhaust sealing ring and the left communicating groove are used for switching on and off the left exhaust groove and the left air outlet groove, the left air inlet sealing ring and the left communicating groove are used for switching on and off the air inlet groove and the left air outlet groove, the right end sealing ring seals the right end of the reversing core hole, the right exhaust sealing ring and the right communicating groove are used for switching on and off the right exhaust groove and the right air outlet groove, and the right air inlet sealing ring and the right communicating groove are used for switching on and off the air inlet groove and the right air outlet groove.
Preferably, the end surfaces of one end of the left valve body and one end of the right valve body are respectively provided with an exhaust groove, and the exhaust grooves are respectively communicated with the left valve plug hole and the right valve plug hole.
Preferably, the left air outlet hole, the left reversing hole, the right air outlet hole and the right reversing hole are all provided with sealing holes.
Preferably, the main valve body is provided with a left connecting hole and a right connecting hole which are parallel to the reversing core hole, the left connecting hole is respectively communicated with the left reversing hole and the right communicating hole, and the right connecting hole is respectively communicated with the right reversing hole and the right communicating hole; the bottom of left valve jack and right valve jack all is equipped with the spread groove, and one side of spread groove is equipped with the through-hole, and left valve jack and left intercommunicating pore are connected respectively to the through-hole, and right valve jack and right intercommunicating pore.
By adopting the technical proposal, high-pressure gas enters the reversing core hole of the main valve body from the air inlet hole, when the reversing core rod is arranged at one side of the left valve body, the left air inlet sealing ring cuts off the air inlet groove from the left air outlet groove, the left air outlet groove is communicated with the left air outlet groove through the left communicating groove,
the air inlet groove is communicated with the right air outlet groove through the right communication groove, the right air outlet groove is used for discharging air, the right air discharging sealing ring is used for isolating the right air outlet groove from the right air outlet groove, the right reversing hole is used for entering high-pressure air, the right reversing hole is communicated with the left communication hole through the through hole, the high-pressure air enters the left valve plug hole from the left communication hole, the high-pressure air pushes the left valve plug to move rightwards, the left valve plug pushes the reversing core rod to move rightwards, air between the left valve plug and the main valve body is discharged through the air discharging groove, the reversing core rod moves to one side of the right valve body,
at this time, the right air inlet sealing ring cuts off the air inlet groove and the right air outlet groove, the right air outlet groove is communicated with the right air outlet groove through the right communication groove, the air inlet groove is communicated with the left air outlet groove through the left communication groove, the left air outlet groove is discharged, the left air outlet sealing ring cuts off the left air outlet groove and the left air outlet groove, the left reversing hole enters high-pressure air, the left reversing hole is communicated with the right communication hole through the through hole, the high-pressure air enters the right valve plug hole from the right communication hole, the high-pressure air pushes the right valve plug to move leftwards, the right valve plug pushes the reversing core rod to move leftwards, air between the right valve plug and the main valve body is discharged through the air outlet groove, and the steps are repeated to realize reciprocating switching of the reversing core rod.
The cylinder comprises a reciprocating pneumatic valve, a cylinder body and a piston; the cylinder body is provided with a piston hole, a left air inlet hole, a left air return hole, a right air inlet hole, a right air return hole and an air exhaust hole which are all communicated with the piston hole; a piston is movably arranged in the piston hole, and an annular piston groove is formed in the center of the piston; the left air inlet hole and the right air inlet hole of the air cylinder are positioned at two ends of the piston hole, the air cylinder exhaust hole is positioned in the center of the cylinder body, and the left air return hole and the right air return hole of the air cylinder are respectively positioned at two sides of the air cylinder exhaust hole; when the piston is positioned at the left end, the right air return hole of the cylinder is communicated with the right air inlet hole of the cylinder, and the left air return hole of the cylinder is communicated with the air outlet hole of the cylinder through a piston groove; when the piston is positioned at the right end, the left air return hole of the cylinder is communicated with the left air inlet hole of the cylinder, and the right air return hole of the cylinder is communicated with the air outlet hole of the cylinder through a piston groove; the left air inlet hole of the air cylinder is communicated with the left air outlet hole, the left air return hole of the air cylinder is communicated with the left reversing hole, the right air inlet hole of the air cylinder is communicated with the right air outlet hole, and the right air return hole of the air cylinder is communicated with the right reversing hole.
Preferably, the cylinder body is provided with a valve seat, and the valve seat is provided with an air inlet and outlet through hole, an air outlet through hole, a left valve seat air inlet hole and a right valve seat air inlet hole which are communicated with the air inlet and outlet through hole; the air inlet and outlet through holes are parallel to the axis of the piston hole, the air inlet and outlet through holes are communicated with the left air inlet hole of the cylinder and the right air inlet hole of the cylinder, vent plugs are arranged in the air inlet and outlet through holes, the air inlet and outlet through holes are divided into a left air through hole and a right air through hole by the vent plugs, the left air through hole is communicated with the left valve seat air inlet hole and the left air inlet hole of the cylinder, and the right air through hole is communicated with the right valve seat air inlet hole and the right air inlet hole of the cylinder; the left air return hole and the right air return hole of the air cylinder are both positioned on the valve seat; the cylinder exhaust hole is communicated with the exhaust through hole.
Preferably, both ends of the cylinder body are respectively provided with a sealing end cover and a connecting end cover, and the connecting end cover is provided with a slide bar through hole; the piston is provided with a piston rod which is movably inserted into the through hole of the slide rod and is in sealing connection with the through hole of the slide rod.
By adopting the technical proposal, high-pressure gas enters the reversing core hole of the main valve body from the air inlet hole, when the reversing core rod is arranged at one side of the left valve body, the left air inlet sealing ring cuts off the air inlet groove from the left air outlet groove, the left air outlet groove is communicated with the left air outlet groove through the left communication groove, the right air outlet sealing ring cuts off the right air outlet groove from the right air outlet groove,
the air inlet groove is communicated with the right air outlet groove through the right communication groove, high-pressure air enters the right air through hole through the right air outlet hole and the right valve seat air inlet hole, enters the piston hole from the right air inlet hole of the air cylinder, the high-pressure air pushes the piston to move leftwards, air at the left side of the piston enters the left air through hole through the left air inlet hole of the air cylinder, and is discharged from the left air outlet hole through the left valve seat air inlet hole and the left air outlet hole,
when the piston moves to the left end of the piston hole, the right air return hole of the cylinder is communicated with the right air inlet hole of the cylinder through the piston hole, high-pressure air enters the right reversing hole through the right air return hole of the cylinder, the right reversing hole is communicated with the left communication hole through the through hole, the high-pressure air enters the left valve plug hole from the left communication hole, the high-pressure air pushes the left valve plug to move rightwards, the left valve plug pushes the reversing core rod to move rightwards, air between the left valve plug and the main valve body is discharged through the exhaust groove, the reversing core rod moves to one side of the right valve body,
at this time, the right air inlet sealing ring cuts off the air inlet groove from the right air outlet groove, the right air outlet groove is communicated with the right air outlet groove through the right communication groove, the left air outlet sealing ring cuts off the left air outlet groove and the left air outlet groove,
the air inlet groove is communicated with the left air outlet groove through the left communication groove, the left air outlet groove is used for discharging air, the left reversing hole is used for entering high-pressure air, the high-pressure air enters the left air through hole through the left air outlet hole and the left valve seat air inlet hole, the high-pressure air enters the piston hole from the left air inlet hole of the air cylinder, the high-pressure air pushes the piston to move rightwards, the air on the right side of the piston enters the right air through hole through the right air inlet hole of the air cylinder, and then is discharged from the right air outlet hole through the right valve seat air inlet hole and the right air outlet hole,
when the piston moves to the right end of the piston hole, the left air return hole of the cylinder is communicated with the left air inlet hole of the cylinder through the piston hole, high-pressure air enters the left reversing hole through the left air return hole of the cylinder, the left reversing hole is communicated with the right communication hole through the through hole, the high-pressure air enters the right valve plug hole from the right communication hole, the high-pressure air pushes the right valve plug to move leftwards, the right valve plug pushes the reversing core rod to move leftwards, air between the right valve plug and the main valve body is discharged through the exhaust groove, and the steps are repeated to realize reciprocating switching of the reversing core rod and reciprocating movement of the piston.
The left valve body and the right valve body are identical in structure.
The grease pump comprises a reciprocating cylinder and a grease pump; the plunger rod of the grease pump is connected with the piston of the reciprocating cylinder.
Preferably, the grease pump comprises a pump body, a plunger rod, a one-way valve and a sealing ring; an oil inlet is formed in one side of the pump body, a plunger cavity and an oil storage tank are formed in the pump body, the oil inlet is communicated with the plunger cavity, a one-way valve is arranged between the oil storage tank and the plunger cavity, and an oil outlet head is arranged on the oil storage tank; the plunger rod is movably inserted into the plunger cavity, sealing rings are arranged at two ends of the plunger cavity, the plunger rod is inserted on the sealing rings, the diameter of the plunger rod is smaller than the inner diameter of the plunger cavity, the plunger rod and the plunger cavity form an oil pressing cavity, an oil pressing ring is arranged on the plunger rod, the oil pressing ring is in transition fit with the plunger cavity, the oil pressing ring blocks an oil inlet, when the oil pressing ring moves towards two ends of the pump body, the oil pressing ring avoids the oil inlet, the oil inlet is communicated with the plunger cavity, the oil pressing ring divides the plunger cavity into a left oil pressing cavity and a right oil pressing cavity, and one-way valves are arranged between the left oil pressing cavity, the right oil pressing cavity and the oil storage tank; the plunger rod is connected with the piston.
By adopting the technical scheme, the plunger rod moves back and forth along with the piston of the reciprocating cylinder, when the plunger rod moves to the leftmost end of the grease pump, the pressure oil ring moves left along with the plunger rod, the oil inlet is communicated with the right pressure oil cavity, at the moment, under the action of the one-way valve, the oil storage tank is not communicated with the right pressure oil cavity, the right pressure oil cavity forms vacuum, grease is sucked in from the oil inlet, meanwhile, the pressure oil ring compresses the grease in the left pressure oil cavity, the grease pushes the one-way valve open to enter the oil storage tank, and the grease in the oil storage tank is extruded from the grease outlet head; when the plunger rod moves to the rightmost end of the grease pump, the pressure oil ring moves rightwards along with the plunger rod, the oil inlet is communicated with the left pressure oil cavity, at the moment, the oil storage tank is not communicated with the left pressure oil cavity under the action of the one-way valve, the left pressure oil cavity forms vacuum to suck grease from the oil inlet, meanwhile, the pressure oil ring compresses the grease in the right pressure oil cavity, the grease pushes the one-way valve open to enter the oil storage tank, the grease in the oil storage tank is extruded from the grease outlet head, and the reciprocating motion realizes continuous oil absorption and pressure oil, so that the purpose of absorbing oil while pressing oil is achieved, the time of oiling is greatly shortened, and the efficiency is improved.
Preferably, the pneumatic grease pump comprises a grease inlet sleeve, a sealing pipe, a connecting pipe and a connecting seat which are connected in sequence, and a material lifting rod, a plunger rod and a connecting rod which are connected in sequence; the side surface of the tail end of the oil inlet sleeve is provided with an oil inlet hole, a lifting plate and a lifting rod are movably arranged in the oil inlet sleeve, the lifting plate is fixed at the tail end of the lifting rod, the lifting plate slides back and forth along the inner surface of the oil inlet sleeve, and the limiting position of the sliding position is positioned at two sides of the oil inlet hole; the plunger rod is provided with a plunger hole, the plunger hole is a through hole, the side surfaces of the two ends of the plunger rod are respectively provided with an oil hole, the oil holes are communicated with the plunger hole, one end of the plunger rod is connected with the lifting rod, the other end of the plunger rod is connected with one end of the connecting rod, one end of the plunger rod is provided with a first one-way valve, the plunger rod is movably arranged in the sealing tube, and a sealing ring or a sealing ring is arranged between the plunger rod and the sealing tube; a connecting rod is movably arranged in the connecting pipe, the other end of the connecting rod is positioned at the outer side of the connecting seat, and a sealing ring or a sealing ring is arranged between the connecting rod and the connecting seat; the connecting seat is provided with an oil outlet joint; the connecting seat is fixed on the reciprocating cylinder, and the other end of the connecting rod is connected with a piston rod of the reciprocating cylinder.
By adopting the technical scheme, the reciprocating cylinder drives the material lifting plate to extract butter so as to realize continuous oil supply. The sealing ring or the sealing ring realizes the sealing between the plunger rod and the sealing tube, and reduces the processing cost.
Preferably, the number of sealing rings or sealing rings between the plunger rod and the sealing tube is not less than two.
By adopting the technical scheme, a plurality of sealing rings or sealing rings have good sealing effect and long service life.
Preferably, the sealing ring is one or more of a V-shaped sealing ring, a Y-shaped sealing ring and a framework sealing ring.
By adopting the technical scheme, the contact area of the O-shaped sealing ring and the plunger rod is small, the O-shaped sealing ring is easy to wear, and the service life is short, so that one or more of the V-shaped sealing ring, the Y-shaped sealing ring and the skeleton sealing ring are changed, the service life is greatly prolonged, and long-time stable continuous oiling is realized.
Preferably, annular grooves are arranged at two ends of the sealing tube, and the sealing ring or the sealing ring is fixed in the annular grooves.
Preferably, a transition rod is arranged between the lifting rod and the plunger rod, the transition rod is a hollow rod, and an oil through hole is arranged on the side surface of the transition rod.
Through adopting above-mentioned technical scheme, make the plunger rod be connected simple and convenient with the material lifting rod, make things convenient for the setting of oil circuit.
Preferably, the first one-way valve comprises a spring fixing seat, a conical spring and a sealing ball which are sequentially installed; one end of the spring fixing seat is provided with a fixing column and an oil through hole, and the other end of the spring fixing seat is provided with an oil inlet groove which is communicated with the oil through hole; the spring fixing seat is positioned in a valve groove at one end of the plunger rod, and the oil inlet groove is communicated with the plunger hole; one end of the conical spring is inserted on the fixed column, the other end of the conical spring is pressed on the sealing ball, and the sealing ball is pressed on the first sealing inclined surface at one end of the transition rod.
By adopting the technical scheme, the first one-way valve prevents butter from pouring back into the oil inlet sleeve.
Preferably, the other end of the plunger rod is provided with a second one-way valve, the second one-way valve comprises a cylindrical spring and a sealing ball, one end of the cylindrical spring is pressed on the end part of the connecting rod, the other end of the cylindrical spring is pressed on the sealing ball, and the sealing ball is pressed on a second sealing inclined surface at the other end of the plunger rod.
By adopting the technical scheme, the butter backflow is further prevented.
Preferably, a filter screen is arranged in the oil inlet sleeve; the oil inlet is a kidney-shaped hole, a plurality of oil inlet holes are arranged, and the oil inlet holes are distributed at equal intervals around the axis of the oil inlet sleeve.
Through adopting above-mentioned technical scheme, a plurality of inlet holes pass through oil feed efficiency.
Preferably, the lifting rod is movably provided with a check valve, a sealing ring or a sealing ring is arranged between the check valve and the lifting rod, the check valve is positioned in a check groove at one end of the sealing pipe, one end of the check valve is opposite to the bottom of the check groove, and the other end of the check valve is opposite to the end part of the oil inlet sleeve.
By adopting the technical scheme, the check valve prevents the butter from flowing backwards.
Preferably, one end of the check valve is provided with a sealing groove, a sealing ring or a sealing ring is arranged in the sealing groove, and the sealing groove faces the bottom of the check groove.
By adopting the technical scheme, the sealing ring or the sealing ring is arranged in the sealing groove to prevent butter from flowing back to the oil inlet sleeve from the gap between the check valve and the material lifting rod.
Compared with the prior art, the invention has the following beneficial effects:
the reciprocating pneumatic valve provided by the invention has the advantages of simple structure, reliable operation, low processing cost, convenient use, automatic reciprocation of the cylinder, simple and practical structure, separation of the reversing valve and the air inlet and outlet channels from the piston, no occupation of the piston movement space, high reaction speed, small occupation space, small volume, low manufacturing cost, low energy consumption, long service life, good sealing effect of the cylinder and convenient assembly and maintenance. The grease pump has the advantages of simple and reliable structure, realization of simultaneous oil absorption and grease injection, difficult blockage, no influence of temperature on oil absorption and grease injection and high efficiency.
Drawings
FIG. 1 is a schematic diagram of a reciprocating solenoid valve;
FIG. 2 is a schematic cross-sectional view of a shuttle solenoid valve;
FIG. 3 is a schematic structural view of a reversing mandrel;
FIG. 4 is a schematic view of the structure of the main valve body;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic view of the structure of the left valve body;
FIG. 7 is a side view of the cylinder;
FIG. 8 is a front view of the cylinder;
FIG. 9 is a schematic cross-sectional view of a reciprocating cylinder;
fig. 10 is a schematic structural view of a grease pump of the third embodiment;
fig. 11 is a schematic sectional structure of a grease pump of the third embodiment;
fig. 12 is a schematic structural view of a grease pump of the fourth embodiment;
fig. 13 is a schematic sectional structure of a grease pump of the fourth embodiment.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 6, the reciprocating pneumatic valve comprises a main valve body 501, a reversing core rod 504, a left valve body 502 and a right valve body 503, wherein the left valve body 502 and the right valve body 503 are respectively fixed on two sides of the main valve body 501, and the reversing core rod 504 is movably arranged in a reversing core hole 505 of the main valve body 501;
as shown in fig. 1, the top of the main valve body 501 is provided with an air inlet 5011, and the bottom is provided with a left air outlet 5014, a left reversing hole 5016, a right air outlet 5015 and a right reversing hole 5017, and the side surface of the main valve body 501 is provided with a left air outlet 5012 and a right air outlet 5013;
the reversing core rod 504 is communicated with the air inlet 5011, the right air outlet 5015, the left air outlet 5014 and the left air outlet 5012 when the left valve body 502 is arranged on one side, and the reversing core rod 504 is communicated with the air inlet 5011, the left air outlet 5014, the right air outlet 5015 and the right air outlet 5013 when the right valve body 503 is arranged on one side;
as shown in fig. 6, one end of the left valve body 502 is provided with a left spool hole 5022 and a left communication hole 5023, the left spool hole 5022 and the reversing core hole 505 are on the same axis, a left spool 5021 is movably installed in the left spool hole 5022, the bottom of the left spool hole 5022 is communicated with the left communication hole 5023, the left communication hole 5023 is communicated with a right reversing hole 5017, and the left spool 5021 pushes the reversing core rod 504 to move rightwards;
one end of the right valve body 503 is provided with a right valve plug hole 5032 and a right communication hole, the right valve plug hole 5032 and the reversing core hole 505 are on the same axis, a right valve plug 5031 is movably arranged in the right valve plug hole 5032, the bottom of the right valve plug hole 5032 is communicated with the right communication hole, the right communication hole is communicated with the left reversing hole 5016, and the right valve plug 5031 pushes the reversing core rod 504 to move leftwards.
As shown in fig. 1, 2, 4 and 5, the reversing core hole 505 is provided therein with an air inlet slot 5051, and a left air outlet slot 5052, a left air outlet slot 5053, and a right air outlet slot 5054, a right air outlet slot 5055 on one side of the air inlet slot 5051;
the air inlet grooves 5051, the left air outlet grooves 5052, the left air outlet grooves 5053, the right air outlet grooves 5054 and the right air outlet grooves 5055 are annular grooves, the air inlet grooves 5051 are communicated with the air inlet holes 5011, the left air outlet grooves 5052 are communicated with the left air outlet holes 5014, the left air outlet grooves 5053 are communicated with the left air outlet holes 5012, the right air outlet grooves 5054 are communicated with the right air outlet holes 5015, and the right air outlet grooves 5055 are communicated with the right air outlet holes 5013;
as shown in fig. 3, the reversing mandrel 504 is provided with a left end seal ring 5041, a left exhaust seal ring 5042, a left intake seal ring 5043, a right intake seal ring 5044, a right exhaust seal ring 5045, and a right end seal ring 5046, and a left communication groove 5047 and a right communication groove 5048,
the left communication groove 5047 is located between the left exhaust seal 5042 and the left intake seal 5043, and the right communication groove 5048 is located between the right intake seal 5044 and the right exhaust seal 5045;
the left end seal 5041 seals the left end of the reversing core hole 505, the left vent seal 5042 and the left communication groove 5047 open and close the left vent groove 5053 and the left vent groove 5052, the left inlet seal 5043 and the left communication groove 5047 open and close the inlet groove 5051 and the left vent groove 5052,
the right end seal 5046 seals the right end of the reversing core hole 505, and the right vent seal 5045 and the right communication groove 5048 open and close the right vent groove 5055 and the right vent groove 5054, and the right inlet seal 5044 and the right communication groove 5048 open and close the inlet groove 5051 and the right vent groove 5054.
The end surfaces of one end of the left valve body 502 and the right valve body 503 are respectively provided with an exhaust groove, and the exhaust grooves are respectively communicated with the left valve plug hole 5022 and the right valve plug hole 5032.
Sealing holes are formed in the left air outlet hole 5014, the left reversing hole 5016, the right air outlet hole 5015 and the right reversing hole 5017. A sealing ring can be placed in the sealing hole.
The main valve body 501 is provided with a left connecting hole and a right connecting hole which are parallel to the reversing core hole 505, the left connecting hole is respectively communicated with a left reversing hole 5016 and a right communicating hole, and the right connecting hole is respectively communicated with a right reversing hole 5017 and a right communicating hole; the bottoms of the left valve plug hole 5022 and the right valve plug hole 5032 are respectively provided with a vent groove, one side of the vent groove is provided with a through hole, and the through holes are respectively connected with the left valve plug hole 5022 and the left communication hole 5023, and the right valve plug hole 5032 and the right communication hole.
Example two
As shown in fig. 7 to 9, the reciprocating cylinder includes the reciprocating air valve of the first embodiment, the cylinder body 601 and the piston 606; the cylinder body 601 is provided with a piston hole 6011, a left cylinder air inlet hole 6012, a left cylinder air return hole 6014, a right cylinder air inlet hole 6013, a right cylinder air return hole 6015 and a cylinder air outlet hole 6016 which are all communicated with the piston hole 6011;
a piston 606 is movably arranged in the piston hole 6011, and an annular piston groove 607 is arranged in the center of the piston 606;
as shown in fig. 7 and 8, a cylinder left intake hole 6012 and a cylinder right intake hole 6013 are located at both ends of the piston hole 6011, a cylinder exhaust hole 6016 is located at the center of the cylinder body 601, and a cylinder left return hole 6014 and a cylinder right return hole 6015 are located at both sides of the cylinder exhaust hole 6016, respectively;
when the piston 606 is positioned at the left end, the cylinder right air return hole 6015 is communicated with the cylinder right air inlet hole 6013, and the cylinder left air return hole 6014 is communicated with the cylinder air outlet hole 6016 through a piston groove 607;
when the piston 606 is positioned at the right end, the left air return hole 6014 of the cylinder is communicated with the left air inlet hole 6012 of the cylinder, and the right air return hole 6015 of the cylinder is communicated with the air outlet hole 6016 of the cylinder through a piston groove 607;
the left cylinder air inlet hole 6012 is communicated with the left air outlet hole 5014, the left cylinder air return hole 6014 is communicated with the left reversing hole 5016, the right cylinder air inlet hole 6013 is communicated with the right air outlet hole 5015, and the right cylinder air return hole 6015 is communicated with the right reversing hole 5017.
The cylinder body 601 is provided with a valve seat 602, the valve seat 602 is provided with an air inlet and outlet through hole 604 and an air outlet through hole 605, and a left valve seat air inlet hole 6021 and a right valve seat air inlet hole 6022 which are communicated with the air inlet and outlet through hole 604;
the air inlet and outlet through holes 604 and the air outlet through hole 605 are parallel to the axis of the piston hole 6011, the air inlet and outlet through hole 604 is communicated with the left air inlet hole 6012 of the cylinder and the right air inlet hole 6013 of the cylinder, an air vent plug 6041 is arranged in the air inlet and outlet through hole 604, the air vent plug 6041 divides the air inlet and outlet through hole 604 into a left air through hole 6042 and a right air through hole 6043, the left air through hole 6042 is communicated with the left valve seat air inlet hole 6021 and the left air inlet hole 6012 of the cylinder, and the right air through hole 6043 is communicated with the right valve seat air inlet hole 6022 and the right air inlet hole 6013 of the cylinder;
the left cylinder return hole 6014 and the right cylinder return hole 6015 are both positioned on the valve seat 602;
the cylinder exhaust hole 6016 communicates with the exhaust through-hole 605.
As shown in fig. 9, two ends of the cylinder body 601 are respectively provided with a sealing end cover 611 and a connecting end cover 612, and the connecting end cover 612 is provided with a slide bar through hole 613; the piston 606 is provided with a piston rod which is movably inserted into the slide bar through hole 613 and is in sealing connection with the slide bar through hole 613.
Example III
As shown in fig. 10 and 11, the grease pump includes a pump body 101, a plunger rod 201, a check valve, and a seal ring 203; an oil inlet 104 is formed in one side of the pump body 101, a plunger cavity and an oil storage tank 103 are formed in the pump body 101, the oil inlet 104 is communicated with the plunger cavity, a one-way valve is arranged between the oil storage tank 103 and the plunger cavity, and an oil outlet 105 is arranged on the oil storage tank 103; the plunger rod 201 is movably inserted into the plunger cavity, sealing rings 203 are arranged at two ends of the plunger cavity, the plunger rod 201 is inserted on the sealing rings 203, V-shaped grooves are arranged on the sealing rings 203, and the V-shaped grooves are oppositely arranged; the diameter of the plunger rod 201 is smaller than the inner diameter of the plunger cavity, the plunger rod 201 and the plunger cavity form an oil pressing cavity, an oil pressing ring 202 is arranged on the plunger rod 201, the oil pressing ring 202 is in transition fit with the plunger cavity, the oil pressing ring 202 blocks the oil inlet 104, when the oil pressing ring 202 moves towards the two ends of the pump body 101, the oil pressing ring 202 avoids the oil inlet 104, the oil inlet 104 is communicated with the plunger cavity, the oil pressing ring 202 divides the plunger cavity into a left oil pressing cavity 106 and a right oil pressing cavity 102, and one-way valves are arranged between the left oil pressing cavity 106, the right oil pressing cavity 102 and the oil storage tank 103; the plunger rod 201 is connected to a piston 606 of a reciprocating cylinder.
The check valves comprise a steel ball 303, a spring 302 and a screw 301 which are sequentially arranged; a steel ball 303 is located between the reservoir 103 and the plunger cavity.
When the plunger rod 201 moves to the leftmost end of the grease pump, the oil ring 202 moves leftwards along with the plunger rod 201, the oil inlet 104 is communicated with the right oil cavity 102, the oil storage tank 103 is not communicated with the right oil cavity 102 under the action of the one-way valve, the right oil cavity 102 forms vacuum, grease is sucked from the oil inlet 104, meanwhile, the oil pressing ring compresses the grease in the left oil cavity 106, the grease pushes the one-way valve into the oil storage tank 103, the grease in the oil storage tank 103 is extruded from the grease outlet 105, when the plunger rod 201 moves to the rightmost end of the grease pump, the oil pressing ring 202 moves rightwards along with the plunger rod 201, the oil inlet 104 is communicated with the left oil cavity 106, the oil storage tank 103 is not communicated with the left oil cavity 106 under the action of the one-way valve, the left oil cavity 106 forms vacuum, the grease is sucked from the oil inlet 104, and at the same time, the grease in the right oil cavity 102 is compressed by the one-way valve, the grease is pushed into the oil storage tank 103, the grease is extruded from the grease outlet 105, the grease in the grease storage tank 103 is pushed out, and the grease is sucked from the grease outlet 105, and the grease is sucked continuously, the grease is sucked and the grease is sucked from the grease pump, and the grease pump is sucked from the grease tank 103.
When the screw 301 is screwed down, the pressure of the spring 302 to the steel ball 303 is increased, the pressure required by butter in the oil pressing cavity to push up the steel ball 303 is also increased, and the oil is difficult to be discharged; when the screw 301 is unscrewed, the pressure of the spring 302 on the steel ball 303 is reduced, the pressure required by the butter in the oil pressing cavity to push the steel ball 303 open for oil discharging is also reduced, the oil discharging is easier, the tightness of the screw 301 can be controlled to achieve the regulation of the pressure, and accordingly the control of the oil filling amount is achieved.
The pressure is always applied to the oil pressing cavity, so that the V-shaped groove on the sealing ring 203 always bears pressure, and the V-shaped groove causes the sealing ring 203 to be pressed on the plunger rod 201 under pressure, so that the sealing effect is improved.
Example IV
As shown in fig. 12 and 13, the grease pump comprises a grease inlet sleeve 1, a grease inlet valve seat 8, a sealing pipe 2, a connecting pipe 4 and a connecting seat 5 which are connected in sequence, and a lifting rod 17, a plunger rod 3 and a connecting rod 41 which are connected in sequence; the side of the tail end of the oil inlet sleeve 1 is provided with an oil inlet hole 12, a lifting plate 15 and a lifting rod 17 are movably arranged in the oil inlet sleeve 1, the lifting plate 15 is fixed at the tail end of the lifting rod 17, the lifting plate 15 slides back and forth along the inner surface of the oil inlet sleeve 1, and the limiting position of sliding is positioned at two sides of the oil inlet hole 12; the plunger rod 3 is provided with a plunger hole which is a through hole, the side surfaces of the two ends of the plunger rod 3 are respectively provided with an oil through hole communicated with the plunger holes, one end of the plunger rod 3 is connected with the lifting rod 17, the other end is connected with one end of the connecting rod 41, one end of the plunger rod 3 is provided with a first one-way valve, the plunger rod 3 is movably arranged in the sealing tube 2, and a V-shaped sealing ring 22 is arranged between the plunger rod 3 and the sealing tube 2; a connecting rod 41 is movably arranged in the connecting pipe 4, the other end of the connecting rod 41 is positioned at the outer side of the connecting seat 5, and a V-shaped sealing ring 22 is arranged between the connecting rod 41 and the connecting seat 5; the connecting seat 5 is provided with an oil outlet joint 52; the connecting seat 5 is fixed on the reciprocating cylinder, the other end of the connecting rod 41 is connected with the plunger rod 201, and the plunger rod 201 is connected with the piston 606 of the reciprocating cylinder.
Two V-shaped sealing rings 22 are provided between the plunger rod 3 and the sealing tube 2. Annular grooves 21 are arranged at two ends of the sealing tube 2, and V-shaped sealing rings 22 are fixed in the annular grooves 21.
A transition rod 7 is arranged between the lifting rod 17 and the plunger rod 3, the transition rod 7 is a hollow rod, and the side surface of the transition rod 7 is provided with an oil through hole.
The first check valve comprises a spring fixing seat 91, a conical spring 94 and a sealing ball 95 which are sequentially installed; one end of the spring fixing seat 91 is provided with a fixing column 93 and an oil through hole, the other end is provided with an oil inlet groove 92, and the oil inlet groove 92 is communicated with the oil through hole; the spring fixing seat 91 is positioned in the valve groove 31 at one end of the plunger rod 3, and the oil inlet groove 92 is communicated with the plunger hole; one end of the conical spring 94 is inserted onto the fixed post 93 and the other end is pressed against the sealing ball 95, the sealing ball 95 being pressed against the first sealing ramp 71 at one end of the transition rod 7.
The other end of the plunger rod 3 is provided with a second one-way valve, the second one-way valve comprises a cylindrical spring 96 and a sealing ball 95, one end of the cylindrical spring 96 is pressed on the end part of the connecting rod 41, the other end is pressed on the sealing ball 95, and the sealing ball 95 is pressed on a second sealing inclined surface 32 at the other end of the plunger rod 3; the other end of the plunger rod 3 is also provided with a valve groove 31, the bottom of the valve groove 31 is provided with a second sealing inclined surface 32, and the valve groove 31 is communicated with an oil through hole at the end part of the plunger rod 3.
The filter screen 15 is arranged in the oil inlet sleeve 1. The filter screen 15 is clamped between the sleeve boss 13 and the oil inlet valve seat 8, so that the replacement is convenient.
The oil inlet holes 12 are kidney-shaped holes, a plurality of oil inlet holes 12 are arranged, and the oil inlet holes 12 are distributed at equal intervals around the axis of the oil inlet sleeve 1.
The lifting rod 17 is movably provided with a check valve 6, a sealing ring or a sealing ring is arranged between the check valve 6 and the lifting rod 17, the check valve 6 is positioned in a check groove 23 at one end of the sealing pipe 2, one end of the check valve 6 is opposite to the bottom of the check groove 23, and the other end is opposite to the end part of the oil inlet sleeve 1.
One end of the check valve 6 is provided with a sealing groove 61, the sealing groove 61 is internally provided with a sealing ring or a sealing ring, and the sealing groove 61 is opposite to the bottom of the check groove 23.
During operation, the reciprocating cylinder is started, the plunger rod 201 drives the lifting rod 17, the plunger rod 3 and the connecting rod 41 to reciprocate together, the lifting plate 15 pumps butter into the oil inlet sleeve 1 from the oil inlet hole 12, the butter flows through the filter screen 15 under the action of the lifting plate 15 and then enters the oil inlet valve seat 8, enters the check groove 23 from the through hole of the oil inlet valve seat 8, then enters the oil through hole of the connecting rod 41 from the check groove 23, the sealing ball 95 is jacked to enter the valve groove 31, then enters the plunger hole from the oil through hole of the spring seat, the sealing ball 95 jacked to the other end of the plunger hole enters the valve groove 31 at the other end of the plunger rod 3, then enters the connecting pipe 4 from the oil through hole at the other end of the plunger rod 3, the butter enters the connecting seat 5 from the connecting pipe 4, and finally flows out of the oil outlet joint 52 arranged on the connecting seat 5.
Claims (8)
1. The reciprocating pneumatic valve is characterized by comprising a main valve body (501), a reversing core rod (504), a left valve body (502) and a right valve body (503), wherein the left valve body (502) and the right valve body (503) are respectively fixed at two sides of the main valve body (501), and the reversing core rod (504) is movably arranged in a reversing core hole (505) of the main valve body (501);
the top of the main valve body (501) is provided with an air inlet hole (5011), and the bottom of the main valve body is provided with a left air outlet hole (5014), a left reversing hole (5016), a right air outlet hole (5015) and a right reversing hole (5017), and the side surface of the main valve body (501) is provided with a left air outlet hole (5012) and a right air outlet hole (5013);
the reversing core rod (504) is communicated with an air inlet hole (5011) and a right air outlet hole (5015) and a left air outlet hole (5014) and a left air outlet hole (5012) when at one side of the left valve body (502), and the reversing core rod (504) is communicated with the air inlet hole (5011) and the left air outlet hole (5014) and a right air outlet hole (5015) and a right air outlet hole (5013) when at one side of the right valve body (503);
one end of the left valve body (502) is provided with a left valve plug hole (5022) and a left communication hole (5023), the left valve plug hole (5022) and the reversing core hole (505) are arranged on the same axis, a left valve plug (5021) is movably arranged in the left valve plug hole (5022), the bottom of the left valve plug hole (5022) is communicated with the left communication hole (5023), the left communication hole (5023) is communicated with a right reversing hole (5017), and the left valve plug (5021) pushes the reversing core rod (504) to move rightwards;
one end of the right valve body (503) is provided with a right valve plug hole (5032) and a right communication hole, the right valve plug hole (5032) and the reversing core hole (505) are on the same axis, a right valve plug (5031) is movably arranged in the right valve plug hole (5032), the bottom of the right valve plug hole (5032) is communicated with the right communication hole, the right communication hole is communicated with the left reversing hole (5016), and the right valve plug (5031) pushes the reversing core rod (504) to move leftwards;
an air inlet groove (5051) is arranged in the reversing core hole (505), and a left air outlet groove (5052) and a left air outlet groove (5053) which are positioned on one side of the air inlet groove (5051) and a right air outlet groove (5054) and a right air outlet groove (5055) which are positioned on the other side of the air inlet groove (5051) are arranged in the reversing core hole;
the air inlet grooves (5051), the left air outlet grooves (5052), the left air outlet grooves (5053), the right air outlet grooves (5054) and the right air outlet grooves (5055) are annular grooves, the air inlet grooves (5051) are communicated with the air inlet holes (5011), the left air outlet grooves (5052) are communicated with the left air outlet holes (5014), the left air outlet grooves (5053) are communicated with the left air outlet holes (5012), the right air outlet grooves (5054) are communicated with the right air outlet holes (5015), and the right air outlet grooves (5055) are communicated with the right air outlet holes (5013);
the reversing core rod (504) is provided with a left end sealing ring (5041), a left exhaust sealing ring (5042), a left air inlet sealing ring (5043), a right air inlet sealing ring (5044), a right exhaust sealing ring (5045) and a right end sealing ring (5046), a left communicating groove (5047) and a right communicating groove (5048),
the left communication groove (5047) is positioned between the left exhaust sealing ring (5042) and the left air inlet sealing ring (5043), and the right communication groove (5048) is positioned between the right air inlet sealing ring (5044) and the right exhaust sealing ring (5045);
the left end sealing ring (5041) seals the left end of the reversing core hole (505), the left exhaust sealing ring (5042) and the left communicating groove (5047) are used for switching on and off the left exhaust groove (5053) and the left exhaust groove (5052), the left inlet sealing ring (5043) and the left communicating groove (5047) are used for switching on and off the inlet groove (5051) and the left exhaust groove (5052),
the right end sealing ring (5046) seals the right end of the reversing core hole (505), the right exhaust sealing ring (5045) and the right communicating groove (5048) are used for switching on and off the right exhaust groove (5055) and the right exhaust groove (5054), and the right inlet sealing ring (5044) and the right communicating groove (5048) are used for switching on and off the inlet groove (5051) and the right exhaust groove (5054);
the end faces of one end of the left valve body (502) and one end of the right valve body (503) are respectively provided with an exhaust groove, and the exhaust grooves are respectively communicated with the left valve plug hole (5022) and the right valve plug hole (5032).
2. The reciprocating pneumatic valve of claim 1, wherein the left gas outlet aperture (5014), the left reversing aperture (5016), the right gas outlet aperture (5015), and the right reversing aperture (5017) are each provided with a sealing aperture.
3. The reciprocating pneumatic valve according to claim 1, wherein the main valve body (501) is provided with a left connecting hole and a right connecting hole which are parallel to the reversing core hole (505), the left connecting hole is respectively communicated with a left reversing hole (5016) and a right communicating hole, and the right connecting hole is respectively communicated with a right reversing hole (5017) and a right communicating hole;
the bottom of left valve jack (5022) and right valve plug hole (5032) all is equipped with the ventilation groove, and one side of ventilation groove is equipped with the through-hole, and left valve plug hole (5022) and left intercommunicating pore (5023) are connected respectively to the through-hole to and right valve plug hole (5032) and right intercommunicating pore.
4. A reciprocating cylinder, characterized by comprising a reciprocating pneumatic valve, a cylinder body (601) and a piston (606) as claimed in claim 1;
the cylinder body (601) is provided with a piston hole (6011), and a left air inlet hole (6012), a left air return hole (6014), a right air inlet hole (6013), a right air return hole (6015) and a cylinder exhaust hole (6016) which are all communicated with the piston hole (6011);
a piston (606) is movably arranged in the piston hole (6011), and an annular piston groove (607) is arranged in the center of the piston (606);
the left air inlet hole (6012) and the right air inlet hole (6013) of the air cylinder are positioned at two ends of the piston hole (6011), the air cylinder exhaust hole (6016) is positioned in the center of the air cylinder body (601), and the left air return hole (6014) and the right air return hole (6015) of the air cylinder are respectively positioned at two sides of the air cylinder exhaust hole (6016);
when the piston (606) is positioned at the left end, a right air return hole (6015) of the cylinder is communicated with a right air inlet hole (6013) of the cylinder, and a left air return hole (6014) of the cylinder is communicated with an air outlet hole (6016) of the cylinder through a piston groove (607);
when the piston (606) is positioned at the right end, a left air return hole (6014) of the cylinder is communicated with a left air inlet hole (6012) of the cylinder, and a right air return hole (6015) of the cylinder is communicated with an air outlet hole (6016) of the cylinder through a piston groove (607);
the left air inlet hole (6012) of the air cylinder is communicated with the left air outlet hole (5014), the left air return hole (6014) of the air cylinder is communicated with the left reversing hole (5016), the right air inlet hole (6013) of the air cylinder is communicated with the right air outlet hole (5015), and the right air return hole (6015) of the air cylinder is communicated with the right reversing hole (5017).
5. The reciprocating cylinder according to claim 4, wherein the cylinder body (601) is provided with a valve seat (602), the valve seat (602) is provided with an air inlet and outlet through hole (604) and an air outlet through hole (605), and a left valve seat air inlet hole (6021) and a right valve seat air inlet hole (6022) which are communicated with the air inlet and outlet through hole (604);
the air inlet and outlet through holes (604) and the air outlet through holes (605) are parallel to the axis of the piston hole (6011), the air inlet and outlet through holes (604) are communicated with the left air inlet hole (6012) of the air cylinder and the right air inlet hole (6013) of the air cylinder, an air vent plug (6041) is arranged in the air inlet and outlet through holes (604), the air vent plug (6041) divides the air inlet and outlet through holes (604) into a left air through hole (6042) and a right air through hole (6043), the left air through hole (6042) is communicated with the left valve seat air inlet hole (6021) and the left air inlet hole (6012) of the air cylinder, and the right air through hole (6043) is communicated with the right valve seat air inlet hole (6022) and the right air inlet hole (6013) of the air cylinder;
the left air return hole (6014) and the right air return hole (6015) of the air cylinder are both positioned on the valve seat (602);
the cylinder exhaust hole (6016) is communicated with the exhaust through hole (605).
6. A grease pump comprising the reciprocating cylinder of claim 5 and a grease pump; the grease pump is fixed on the reciprocating cylinder, and a plunger rod of the grease pump is connected with a piston (606) of the reciprocating cylinder.
7. The grease pump according to claim 6, characterized in that the grease pump comprises a pump body (101), a plunger rod, a one-way valve and a sealing ring (203); the plunger rod comprises a first plunger rod (201); an oil inlet (104) is formed in one side of the pump body (101), a plunger cavity and an oil storage tank (103) are formed in the pump body (101), the oil inlet (104) is communicated with the plunger cavity, a one-way valve is arranged between the oil storage tank (103) and the plunger cavity, and an oil outlet head (105) is arranged on the oil storage tank (103); the first plunger rod (201) is movably inserted into the plunger cavity, sealing rings (203) are arranged at two ends of the plunger cavity, the first plunger rod (201) is inserted on the sealing rings (203), the diameter of the first plunger rod (201) is smaller than the inner diameter of the plunger cavity, the first plunger rod (201) and the plunger cavity form an oil pressing cavity, an oil pressing ring (202) is arranged on the first plunger rod (201), the oil pressing ring (202) is in transition fit with the plunger cavity, the oil pressing ring (202) blocks an oil inlet (104), when the oil pressing ring (202) moves towards two ends of the pump body (101), the oil pressing ring (202) avoids the oil inlet (104), the oil inlet (104) is communicated with the plunger cavity, the oil pressing ring (202) divides the plunger cavity into a left oil pressing cavity (106) and a right oil pressing cavity (102), and one-way valves are arranged between the left oil pressing cavity (106) and the right oil pressing cavity (102) and the oil storage tank (103); the first plunger rod (201) is connected with a piston (606).
8. The grease pump according to claim 6, characterized in that the grease pump comprises an oil inlet sleeve (1), a sealing tube (2), a connecting tube (4) and a connecting seat (5) which are connected in sequence, and a lifting rod (17), a plunger rod and a connecting rod (41) which are connected in sequence; the plunger rod comprises a second plunger rod (3); an oil inlet hole (12) is formed in the side face of the tail end of the oil inlet sleeve (1), a lifting plate (15) and lifting rods (17) are movably arranged in the oil inlet sleeve (1), the lifting plate (15) is fixed at the tail end of each lifting rod (17), the lifting plate (15) slides back and forth along the inner surface of the oil inlet sleeve (1), and the limiting positions of sliding are located on two sides of the oil inlet hole (12); the two ends of the second plunger rod (3) are provided with oil holes, the oil holes are communicated with the plunger holes, one end of the second plunger rod (3) is connected with the lifting rod (17), the other end of the second plunger rod is connected with one end of the connecting rod (41), one end of the second plunger rod (3) is provided with a first one-way valve, the second plunger rod (3) is movably arranged in the sealing tube (2), and a sealing ring or a sealing ring is arranged between the second plunger rod (3) and the sealing tube (2); a connecting rod (41) is movably arranged in the connecting pipe (4), the other end of the connecting rod (41) is positioned at the outer side of the connecting seat (5), and a sealing ring or a sealing ring is arranged between the connecting rod (41) and the connecting seat (5); an oil outlet joint (52) is arranged on the connecting seat (5); the connecting seat (5) is fixed on the reciprocating cylinder, the other end of the connecting rod (41) is connected with the second plunger rod (3), and the second plunger rod (3) is connected with the piston (606).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415755.6A CN108386702B (en) | 2018-05-03 | 2018-05-03 | Reciprocating pneumatic valve and cylinder and grease pump adopting same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415755.6A CN108386702B (en) | 2018-05-03 | 2018-05-03 | Reciprocating pneumatic valve and cylinder and grease pump adopting same |
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| Publication Number | Publication Date |
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| CN108386702A CN108386702A (en) | 2018-08-10 |
| CN108386702B true CN108386702B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810415755.6A Active CN108386702B (en) | 2018-05-03 | 2018-05-03 | Reciprocating pneumatic valve and cylinder and grease pump adopting same |
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| CN110081297A (en) * | 2019-05-28 | 2019-08-02 | 郑呈祥 | A kind of hydraulic automatic butter machine |
| CN111237620A (en) * | 2019-11-05 | 2020-06-05 | 新乡航空工业(集团)有限公司 | Valve structure integrating pressure regulating valve and safety valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586049Y (en) * | 2002-11-29 | 2003-11-12 | 江苏海陵机械有限公司 | Pneumatic grease pump |
| CN103256273A (en) * | 2013-05-06 | 2013-08-21 | 牟安平 | Automatic linear reciprocating type air cylinder |
| WO2015180638A1 (en) * | 2014-05-27 | 2015-12-03 | 郑州奥特科技有限公司 | Two-way control grease suction device and waste grease recycling device |
| CN208535541U (en) * | 2018-05-03 | 2019-02-22 | 浙江洁普斯清洁设备有限公司 | Reciprocating pneumatic valve and the cylinder and grease pump for using the valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9540971B2 (en) * | 2011-04-27 | 2017-01-10 | Graco Minnesota, Inc. | Method to prevent debris build-up on reciprocating air motor pilot valves |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586049Y (en) * | 2002-11-29 | 2003-11-12 | 江苏海陵机械有限公司 | Pneumatic grease pump |
| CN103256273A (en) * | 2013-05-06 | 2013-08-21 | 牟安平 | Automatic linear reciprocating type air cylinder |
| WO2015180638A1 (en) * | 2014-05-27 | 2015-12-03 | 郑州奥特科技有限公司 | Two-way control grease suction device and waste grease recycling device |
| CN208535541U (en) * | 2018-05-03 | 2019-02-22 | 浙江洁普斯清洁设备有限公司 | Reciprocating pneumatic valve and the cylinder and grease pump for using the valve |
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