CN111140460B - Single-cylinder single-feeding hydraulic piston pump - Google Patents
Single-cylinder single-feeding hydraulic piston pump Download PDFInfo
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- CN111140460B CN111140460B CN201911387273.5A CN201911387273A CN111140460B CN 111140460 B CN111140460 B CN 111140460B CN 201911387273 A CN201911387273 A CN 201911387273A CN 111140460 B CN111140460 B CN 111140460B
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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
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
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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
- F04B53/08—Cooling; Heating; Preventing freezing
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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
- F04B53/10—Valves; Arrangement of valves
- F04B53/1087—Valve seats
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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
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
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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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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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
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
- F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a single cylinder single feed hydraulic piston pump, including two effect hydraulic cylinder and a mud jar, wherein this mud jar is connected in this two effect hydraulic cylinder, wherein this two effect hydraulic cylinder is provided with two effect hydraulic cylinder piston rods, this mud jar is provided with mud jar piston, this two effect hydraulic cylinder piston rod is connected in this mud jar piston, wherein this two effect hydraulic cylinder piston rod comes the come back work, drive this mud jar piston back and forth movement, thereby the upper discharge gate check valve and the lower feed inlet check valve of this mud jar are opened in turn and are closed and accomplish the feeding and arrange the material, so reciprocating motion realizes the pumping material.
Description
Technical Field
The invention relates to the field of sludge pumps, in particular to an energy-saving and environment-friendly single-cylinder single-feed hydraulic piston pump.
Background
The hydraulic piston type sludge pump sewage pump in the current market adopts a hydraulic oil cylinder as a power cylinder to drive a working cylinder piston to move, an inlet and an outlet adopt tee joints, and two one-way valves are respectively installed as an inlet one-way check valve and an outlet one-way check valve; the inlet and outlet one-way valves are in an angle general form, namely the inlet and the outlet of the one-way valve are 90 degrees, and materials are easy to generate turbulence in the transmission process; a charging barrel of the working cylinder is not provided with a cooling system, and heat generated in the operation of equipment cannot be conducted and dissipated in time, so that a sealing element of the piston of the working cylinder is aged and loses efficacy; when the hydraulic oil cylinder is used as a power cylinder and is used for reversing, the installation position of the reversing device is fixed, and the collision between a piston and two end covers is easily caused due to the motion inertia and the hysteresis of a reversing valve.
Disclosure of Invention
The invention aims to provide a single-cylinder single-feeding hydraulic piston pump which is energy-saving and environment-friendly, high in operation efficiency, small in power loss, extremely low in suction and discharge damping, compact in size and convenient to mount, maintain and maintain.
In order to achieve at least one of the above purposes, the invention provides a single-cylinder single-feed hydraulic piston pump, which comprises a double-acting hydraulic oil cylinder and a sludge cylinder, wherein the sludge cylinder is connected to the double-acting hydraulic oil cylinder, the double-acting hydraulic oil cylinder is provided with a double-acting hydraulic oil cylinder piston rod, the sludge cylinder is provided with a sludge cylinder piston, the double-acting hydraulic oil cylinder piston rod is connected to the sludge cylinder piston, the double-acting hydraulic oil cylinder piston rod is driven to carry back and forth to drive the sludge cylinder piston to move back and forth, and an upper discharge port one-way valve and a lower feed port one-way valve of the sludge cylinder are opened and closed alternately to complete feeding and discharging, so that the reciprocating motion realizes material pumping.
In some embodiments, the one-way valve of the upper discharge port of the sludge cylinder is of a straight-through structure, the one-way valve of the lower feed port of the sludge cylinder is of a straight-through structure, the material directly enters the sludge cylinder from the one-way valve of the straight-through lower feed port of the sludge cylinder to complete feeding, and the material is discharged through the one-way valve of the upper discharge port of the sludge cylinder to complete discharging.
In some embodiments, the single-cylinder single-feed hydraulic piston pump further comprises a discharge manifold mounted to the discharge port of each of the sludge cylinders, and a feed bypass pipe mounted to the feed port of each of the sludge cylinders, wherein the upper and lower discharge port check valves of the sludge cylinders are of a through-type structure, and the material is directly fed into the sludge cylinder from the feed bypass pipe through the through-type lower feed port check valve, and discharged from the sludge cylinder through the through-type upper discharge port check valve directly into the discharge manifold.
In some embodiments, the sludge cylinder further comprises a sludge cylinder working material cylinder, the upper discharge port one-way valve of the sludge cylinder is of a through type structure, the lower feed port one-way valve of the sludge cylinder is of a through type structure, a material directly enters the sludge cylinder working material cylinder through the through type lower feed port one-way valve of the sludge cylinder, and the material is directly discharged from the sludge cylinder working material cylinder of the sludge cylinder through the through type upper discharge port one-way valve of the sludge cylinder.
In some embodiments, the sludge cylinder further comprises a three-way low-damping double-acting check valve of the sludge cylinder, and the three-way low-damping double-acting check valve is of an integrated structure and has the functions of upper discharging one-way check and lower feeding one-way check.
In some embodiments, the sludge cylinder further comprises a sludge cylinder three-way low-damping double-acting one-way valve, the sludge cylinder three-way low-damping double-acting one-way valve comprises a sludge cylinder three-way valve body, the sludge cylinder three-way valve body is an integrated three-way, a straight-through upper discharge port one-way valve of the sludge cylinder is arranged inside an upper opening of the sludge cylinder three-way valve body, and a straight-through lower feed port one-way valve of the sludge cylinder is arranged inside a lower opening of the sludge cylinder three-way valve body.
In some embodiments, the single-cylinder single-feed hydraulic piston pump further comprises a discharge manifold and a feed flow dividing pipe, and the upper and lower ports of the sludge cylinder three-way valve body are respectively connected with the discharge manifold and the feed flow dividing pipe through flanges.
In some embodiments, the sludge cylinder further comprises a sludge cylinder working material cylinder, and the middle opening of the sludge cylinder three-way valve body is connected with the sludge cylinder working material cylinder and serves as a rodless cavity sealing end cover of the sludge cylinder working material cylinder.
In some embodiments, the sludge cylinder further comprises a sludge cylinder working material cylinder and a sludge cylinder external protection cylinder, the sludge cylinder external protection cylinder is sleeved on the sludge cylinder working material cylinder, and the middle opening of the sludge cylinder three-way valve body is connected with the sludge cylinder external protection cylinder at one end of the rodless cavity of the sludge cylinder working material cylinder and serves as a rodless cavity sealing end cover of the sludge cylinder working material cylinder.
In some embodiments, the outer circle positioning step at the end part of the sludge cylinder three-way valve body is provided with a sealing piece and is installed in an inner hole at the end part of the sludge cylinder working material barrel for static sealing, wherein the sludge cylinder three-way valve body is connected with the end part of the sludge cylinder outer protection barrel.
In some embodiments, the sludge cylinder further comprises a sludge cylinder working material cylinder, and the sludge cylinder further comprises a sludge cylinder connecting end cover which is used as a rod cavity sealing end cover of the sludge cylinder working material cylinder.
In some embodiments, the three-way low damping double-acting one-way valve further comprises a sludge cylinder three-way valve body discharge port valve core, a sludge cylinder three-way valve body discharge port valve core seat, a sludge cylinder three-way valve body discharge port valve core gasket, a sludge cylinder three-way valve body feed port valve core and a sludge cylinder three-way valve body feed port valve core gasket, wherein the sludge cylinder three-way valve body discharge port valve core seat is installed in an upper port inner hole of the sludge cylinder three-way valve body, the sludge cylinder three-way valve body discharge port valve core is installed in an inner hole of the sludge cylinder three-way valve body discharge port valve core seat in a sliding fit manner, the sludge cylinder three-way valve body feed port valve core gasket is installed on an inner hole step of the sludge cylinder three-way valve body below the sludge cylinder three-way valve body discharge port valve core, the sludge cylinder three-way valve body feed port valve core is installed in a valve core seat inner hole at the upper portion of the sludge cylinder three-way valve body feed port, the sealing gasket of the feed port valve core of the sludge cylinder three-way valve body is arranged on the step of the inner hole of the sludge cylinder three-way valve body below the feed port valve core of the sludge cylinder three-way valve body.
In some embodiments, the sludge cylinder further comprises a sludge cylinder three-way valve body, the sludge cylinder three-way valve body is an integrated three-way valve, the straight-through type upper discharge port one-way valve of the sludge cylinder is arranged inside an upper opening of the sludge cylinder three-way valve body, and the straight-through type lower feed port one-way valve of the sludge cylinder is arranged inside a lower opening of the sludge cylinder three-way valve body.
In some embodiments, the sludge cylinder further comprises a sludge cylinder working material cylinder and a sludge cylinder external protection cylinder, the sludge cylinder external protection cylinder is sleeved on the sludge cylinder working material cylinder, an excircle positioning step at the end part of the sludge cylinder three-way valve body is provided with a sealing piece and is installed in an inner hole at the end part of the sludge cylinder working material cylinder for static sealing, and the end part of the sludge cylinder three-way valve body and the end part of the sludge cylinder external protection cylinder are connected.
In some embodiments, the sludge cylinder further comprises a sludge cylinder working material cylinder and a sludge cylinder outer protection cylinder, wherein the sludge cylinder working material cylinder is sleeved in the sludge cylinder outer protection cylinder.
In some embodiments, the two ends of the sludge cylinder outer protection barrel are provided with cooling ports, an annular cavity is formed between the sludge cylinder working material barrel and the sludge cylinder outer protection barrel, and the two ends of the sludge cylinder working material barrel and the outer protection barrel are provided with sealing parts for supporting and sealing in a clearance fit mode.
In some embodiments, the sludge cylinder piston is in sliding sealing fit in the inner hole of the sludge cylinder working material cylinder, the sludge cylinder outer protection cylinder is sleeved on the excircle of the sludge cylinder working material cylinder, and the annular cavity is formed between the excircle of the sludge cylinder working material cylinder and two ends of the inner hole of the sludge cylinder outer protection cylinder.
In some embodiments, wherein the single cylinder single feed hydraulic piston pump further comprises a stroke adjusting reversing device mounted between the sludge cylinder and the double acting hydraulic ram.
In some embodiments, the stroke adjusting reversing device comprises a first sealing guide sleeve, a first position sensor, a reversing valve rod, a position detection sensor, a second position sensor and a second sealing guide sleeve, wherein the first sealing guide sleeve and the first position sensor are mounted at the end of the sludge cylinder, the second position sensor and the second sealing guide sleeve are mounted at the end of the double-acting hydraulic oil cylinder, the reversing valve rod is mounted in a sealing guide sleeve hole of the first sealing guide sleeve and the second sealing guide sleeve, and the position detection sensor is mounted on the reversing valve rod.
In some embodiments, wherein the sludge cylinder piston of the sludge cylinder and the dual acting hydraulic cylinder piston rod of the dual acting hydraulic cylinder are axially and radially fixed by a snap key, a self-sealing nut axially locks and seals.
In some embodiments, each of the sludge cylinders further comprises a sludge cylinder self-locking nut and a sludge cylinder clamp key, wherein the sludge cylinder piston is assembled at the end of the piston rod of the double-acting hydraulic oil cylinder, the sludge cylinder clamp key is clamped in a clamp key groove at the end of the piston rod of the double-acting hydraulic oil cylinder, and the sludge cylinder self-locking nut is screwed on an external thread at the end of the piston rod of the double-acting hydraulic oil cylinder.
In some embodiments, the double-acting hydraulic oil cylinder further comprises a cylinder barrel, a buffer plunger and a guide sleeve, the piston rod of the double-acting hydraulic oil cylinder and the buffer plunger are assembled in the cylinder barrel, the guide sleeve is installed at the end part of the cylinder barrel, the piston of the piston rod of the double-acting hydraulic oil cylinder is matched with the inner hole of the cylinder barrel in a sliding and sealing mode, and the piston rod of the double-acting hydraulic oil cylinder is matched with the inner hole of the guide sleeve in a sliding and sealing mode. .
Compared with the prior art, the invention has the following beneficial effects: the single-cylinder single-feeding hydraulic piston pump provided by the invention is provided with a double-acting hydraulic oil cylinder, a sludge cylinder arranged at the left end of the double-acting hydraulic oil cylinder, a stroke adjusting and reversing device arranged between the sludge cylinder and a flange of a rear end cover of the oil cylinder, a discharging collecting pipe arranged on the sludge cylinder, and a feeding shunt pipe arranged on the sludge cylinder. The three-way low-damping double-acting one-way valve has an integrated structure, has the functions of upper discharging one-way non-return and lower feeding one-way non-return, and serves as a rodless cavity sealing end cover of the working material cylinder, a connecting end cover serves as a rod cavity sealing end cover, and has the functions of sliding sealing with a double-acting piston rod extending into a hole of the connecting end cover and connecting with a middle double-acting hydraulic oil cylinder. The upper discharge port one-way valve and the lower feed port one-way valve are both in a straight-through structure, materials directly enter the sludge cylinder working material barrel from the feed flow dividing pipe through the straight-through lower feed port one-way valve, the movement distance is short without passing through other pipelines and elbows in the middle, the flowing direction is not changed, turbulent flow resistance is not generated, and the operation efficiency is low; the material directly gets into ejection of compact collecting pipe from work feed cylinder through straight-through type upper discharge gate check valve, and the centre need not to pass through other pipelines and elbow movement distance short and do not change the flow direction and do not produce the little operating efficiency height of torrent resistance. The effective strokes at two ends of the double-acting hydraulic oil cylinder can be adjusted by adjusting the mounting positions of the position sensors mounted on the connecting end cover and the oil cylinder end cover flange, so that the pistons cannot contact the guide sleeves at two ends and the oil cylinder rear end cover when the double-acting hydraulic oil cylinder moves back and forth at a high speed, and cylinder collision caused by large movement inertia is avoided. The working material barrels made of different materials can be conveniently replaced according to different abrasion conditions or material properties of the working material barrels; cooling media are introduced into cooling ports arranged at two ends of the outer protection cylinder to enter the annular cavity, a large amount of heat energy generated by back-and-forth movement friction during working between the sludge cylinder working material cylinder and the sludge cylinder piston is taken away, aging failure of the sludge cylinder piston sealing element is effectively delayed, the working material cylinder suspends on the sludge cylinder piston, cylindricity errors and assembly coaxiality errors caused by working material cylinder processing can be effectively compensated, eccentric wear of an inner hole of the working material cylinder and the sludge cylinder piston cannot be caused, and the service lives of the working material cylinder, the piston and the piston sealing element are prolonged.
Drawings
FIG. 1 is a perspective view of a single cylinder single feed hydraulic piston pump according to a preferred embodiment of the present invention.
Fig. 2 is a perspective view schematically showing the single cylinder single feed hydraulic piston pump according to the above preferred embodiment of the present invention.
Detailed Description
For the purpose of promoting an understanding of the invention, reference will now be made in detail to the embodiments illustrated in the drawings. The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are intended to be illustrative only and not limiting, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention. Based on the understanding of the principle of the present invention, those skilled in the art can obtain other drawings and other embodiments without creative effort, and the scope of the present invention is covered by the claims.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
Fig. 1 to 2 show a single-cylinder single-feed hydraulic piston pump according to a preferred embodiment of the present invention, which has high operating efficiency, low power loss, low suction and discharge damping, compact size, convenient installation, maintenance, energy saving and environmental protection.
The single-cylinder single-feed hydraulic piston pump comprises a double-acting hydraulic oil cylinder 100 and a sludge cylinder 200, wherein the sludge cylinder 200 is arranged at the end part of the double-acting hydraulic oil cylinder 100. In this preferred embodiment of the invention, the sludge cylinder 200 is mounted at the left end of the double acting hydraulic ram 100. It will be appreciated by those skilled in the art that in other embodiments, the sludge cylinder 200 may be mounted at the right end of the double acting hydraulic cylinder 100, and the invention is not limited in this respect.
Specifically, the double-acting hydraulic oil cylinder 100 comprises a cylinder barrel 101, a cylinder barrel flange, a double-acting hydraulic oil cylinder piston rod 102, a buffer plunger, a guide sleeve 103, a cylinder rear end cover 111 and a cylinder rear end cover flange 107. Further, the double-acting hydraulic oil cylinder piston rod 102 and the buffer plunger are assembled in the cylinder barrel 101, the guide sleeve 103 is installed at the left end of the cylinder barrel 101, the piston of the double-acting hydraulic oil cylinder piston rod 102 is matched with the inner hole of the cylinder barrel 101 in a sliding sealing mode, and the piston rod of the double-acting hydraulic oil cylinder piston rod 102 is matched with the inner hole of the guide sleeve 103 in a sliding sealing mode.
Specifically, the single-cylinder single-feed hydraulic piston pump further comprises a discharge manifold 400 and a feed shunt pipe 500, and the discharge manifold 400 and the feed shunt pipe 500 are installed on the sludge cylinder 200. Further, the discharge collecting pipe 400 is connected with the discharge hole of the sludge cylinder 200 through a flange, and the feeding shunt pipe 500 is connected with the feed hole of the sludge cylinder 200 through a flange.
Specifically, the sludge cylinder 200 comprises a sludge cylinder piston 201, a sludge cylinder three-way low-damping double-acting one-way valve 202, a sludge cylinder connecting end cover 203, a sludge cylinder working material cylinder 204, a sludge cylinder outer protection cylinder 205, a sludge cylinder self-locking nut 206 and a sludge cylinder clamp key 207.
The sludge cylinder three-way low-damping double-acting check valve 202 and the sludge cylinder connecting end cover 203 are arranged at the end part of the sludge cylinder 200. Preferably, in this preferred embodiment of the present invention, the sludge cylinder three-way low-damping double-acting check valve 202 is disposed at the left end of the sludge cylinder 200, and the sludge cylinder connecting end cover 203 is disposed at the right end of the sludge cylinder 200. The piston rod 102 of the double-acting hydraulic oil cylinder returns to the left and the right to drive the piston 201 of the sludge cylinder at the left end to move back and forth, and an upper discharge port one-way valve and a lower feed port one-way valve of the three-way low-damping double-acting one-way valve 202 of the sludge cylinder are alternately opened and closed to finish feeding and discharging, so that the reciprocating motion achieves the purpose of pumping materials. It will be understood by those skilled in the art that the three-way low damping double acting check valve 202 of the sludge cylinder and the arrangement orientation of the connecting end cover 203 of the sludge cylinder are only examples, and the invention is only by way of example in this respect and is not limited thereto.
Further, the sludge cylinder piston 201 is installed at the left end of the double-acting hydraulic oil cylinder piston rod 102, the sludge cylinder piston 201 and the double-acting hydraulic oil cylinder piston rod 102 are axially and radially fixed through a clamping key, and a self-sealing nut is axially locked and sealed. The sludge cylinder piston 201 is in sliding sealing fit in an inner hole of the sludge cylinder working barrel 204.
Preferably, in this preferred embodiment of the present invention, the sludge cylinder piston 201 is sleeved on the positioning steps of the double-acting hydraulic cylinder piston rod 102 of the double-acting hydraulic cylinder 100, and is in clearance fit, and a sealing member is arranged in the middle for supporting and sealing, and a certain coaxiality deviation compensation is allowed.
Preferably, in the preferred embodiment of the present invention, the sludge cylinder locking key 207 is locked in the left end locking key groove of the piston rod 102 of the double acting hydraulic cylinder, and the sludge cylinder self-locking nut 206 is screwed on the left end external thread of the piston rod 102 of the double acting hydraulic cylinder.
Preferably, in this preferred embodiment of the present invention, the sludge cylinder clamp key 207 fixes the sludge cylinder piston 201 at the positioning step of the double acting hydraulic cylinder piston rod 102 in the axial and radial directions. The inner hole of the sludge cylinder self-locking nut 206 is designed as a step blind hole, the sludge cylinder clamping key 207 is fixed on the excircle of the sludge cylinder clamping key 207 in a step sleeved mode, the inner hole is an internal thread and is screwed with an external thread of the double-acting hydraulic oil cylinder piston rod 102 to further fix the sludge cylinder piston 201, a sealing ring seal is arranged on the annular surface, attached to the sludge cylinder self-locking nut 206 and the sludge cylinder piston 201, of the sludge cylinder self-locking nut 206, materials in a charging barrel cannot permeate into the joint of the sludge cylinder piston 201 and the double-acting hydraulic oil cylinder piston rod 102 to cause pollution and corrosion.
Specifically, the sludge cylinder three-way low-damping double-acting check valve 202 of the sludge cylinder 200 comprises a sludge cylinder three-way valve body 208, a sludge cylinder three-way valve body discharge port valve core 209, a sludge cylinder three-way valve body discharge port valve core seat 210, a sludge cylinder three-way valve body discharge port valve core sealing gasket 211, a sludge cylinder three-way valve body feed port valve core 212 and a sludge cylinder three-way valve body feed port valve core sealing gasket 213.
Specifically, the valve core seat 210 of the discharge port of the sludge cylinder three-way valve body is installed in the inner hole of the upper opening of the sludge cylinder three-way valve body 208, the valve core 209 of the discharge port of the sludge cylinder three-way valve body is installed in the inner hole of the valve core seat 210 of the discharge port of the sludge cylinder three-way valve body in a sliding fit manner, the valve core sealing gasket 211 of the feed port of the sludge cylinder three-way valve body is installed below the valve core 209 of the discharge port of the sludge cylinder three-way valve body on the step of the inner hole of the sludge cylinder three-way valve body 208, the valve core 212 of the feed port of the sludge cylinder three-way valve body is installed in the inner hole of the valve core seat on the upper part of the feed port of the sludge cylinder three-way valve body 208 in a sliding fit manner, and the valve core sealing gasket 211 of the feed port of the sludge cylinder three-way valve body is installed below the valve core 212 of the feed port of the sludge cylinder three-way valve body 208 on the step of the inner hole of the sludge cylinder three-way valve body 208.
Further, the upper and lower ports of the three-way valve body 208 of the sludge cylinder are respectively connected to the discharge manifold 400 and the feeding shunt tube 500 through flanges, and the middle port is connected to the outer protection cylinder 205 of the sludge cylinder at one end of the rodless cavity of the working material cylinder 204 of the sludge cylinder through a screw, and serves as a rodless cavity end cover of the working material cylinder 204 of the sludge cylinder.
Preferably, in this preferred embodiment of the present invention, the sludge cylinder three-way valve body 208 of the sludge three-way low damping double-acting check valve 202 of the sludge cylinder 200 is an integrated three-way, the middle opening is fixedly connected to the sludge cylinder outer protection cylinder 205 at one end of the rodless cavity of the sludge cylinder working cylinder 204, the outer circle positioning step of the sludge cylinder three-way valve body 208 is provided with a sealing device and an inner hole of the sludge cylinder working cylinder 204 sleeved on the outer circle thereof for static sealing, and the rodless cavity of the sludge cylinder 200 is sealed to serve as a sealing end cover of the rodless cavity of the sludge pump of the present invention. The inside of the upper opening of the sludge cylinder three-way valve body 208 is a straight-through type discharge port one-way valve, the upper opening is connected with the discharge collecting pipe 400, the inside of the lower opening of the sludge cylinder three-way valve body 208 is a straight-through type feed port one-way valve, and the lower opening is connected with the feed dividing pipe 500. The excircle positioning step at one end of the sludge cylinder connecting end cover 203 is provided with a sealing device, and the sealing device is statically sealed with an inner hole of the sludge cylinder working material cylinder 204 sleeved on the excircle of the sealing device to seal the rod cavity of the sludge cylinder 200, so that the sealing end cover of the rod cavity of the sludge pump is used. The inner hole at the other end of the sludge cylinder connecting end cover 203 is provided with a sealing device, and the piston rod 102 of the double-acting hydraulic oil cylinder extending into the hole is sealed in a sliding way, so that the rod cavity of the sludge cylinder 200 is sealed. The piston rod 102 of the double-acting hydraulic oil cylinder extends into the sludge cylinder connecting end cover 203 to be connected with the sludge cylinder piston 201 and is fixedly connected with the cylinder barrel flange of the double-acting hydraulic oil cylinder through a screw.
It will be appreciated by those skilled in the art that the foregoing screw connection is merely exemplary in this preferred embodiment of the present invention, and that other connection methods, such as welding, are also possible, and the present invention is not limited in this respect.
It is worth mentioning that the sludge cylinder three-way type low-damping double-acting one-way valve 202 is an integrated structure, has the functions of upper discharging one-way non-return and lower feeding one-way non-return, and is used as a rodless cavity sealing end cover of the sludge cylinder working material cylinder 204. The sludge cylinder connecting end cover 203 is used as a rod cavity sealing end cover of the sludge cylinder working material cylinder 204, and has the functions of sliding sealing with the double-acting hydraulic oil cylinder piston rod 102 extending into the hole of the sludge cylinder connecting end cover and connecting the middle double-acting hydraulic oil cylinder 100. The upper discharge port one-way valve is in a straight-through structure and is directly connected with the discharge collecting pipe 400, the lower feed inlet one-way valve is in a straight-through structure and is directly connected with the feed dividing pipe 500, materials directly enter the sludge cylinder working material barrel 204 through the straight-through lower feed inlet one-way valve through the feed dividing pipe 500, the movement distance is short without other pipelines and elbows, the flowing direction is not changed, turbulence resistance is not generated, and the operation efficiency is low. The materials directly enter the discharge collecting pipe 400 from the sludge cylinder working material barrel 204 through a straight-through type upper discharge hole one-way valve, and the operation efficiency is high without other pipelines and elbows, the movement distance is short, the flowing direction is not changed, and turbulence resistance is not generated.
Further, the sludge cylinder working material cylinder 204 is sleeved with the sludge cylinder outer protection cylinder 205. Preferably, in this preferred embodiment of the present invention, the sludge cylinder outer protecting cylinder 205 is fitted over the outer circumference of the sludge cylinder working cylinder 204. The both ends of a mud jar external protection section of thick bamboo 205 are provided with the cooling hole, mud jar work feed cylinder 204 with there is an annular cavity between the mud jar external protection section of thick bamboo 205, mud jar work feed cylinder 204 with the both ends of a mud jar external protection section of thick bamboo 205 are provided with the sealing member for clearance fit and support and sealed. Preferably, in this preferred embodiment of the present invention, the annular cavity is formed between the outer circumference of the sludge cylinder working cylinder 204 and both ends of the inner hole of the sludge cylinder outer protecting cylinder 205.
It should be noted that, preferably, in the preferred embodiment of the present invention, the sludge cylinder working barrel 204 and the sludge cylinder piston 201 are in clearance fit, so that the sludge cylinder working barrel 204 made of different materials can be conveniently replaced according to the wear condition or material property of the sludge cylinder working barrel 204. Sludge cylinder work feed cylinder 204 with during operation back and forth movement friction produces a large amount of heat energy between the sludge cylinder piston 201 the cooling hole that the both ends of sludge cylinder outer protection section of thick bamboo 205 set up lets in cooling medium gets into annular cavity takes away sludge cylinder work feed cylinder 204 with a large amount of heat energy that the during operation back and forth movement friction produced between the sludge cylinder piston 201 effectively delays the ageing inefficacy of the sealing member of sludge cylinder piston 201. Meanwhile, the two ends of the sludge cylinder working material cylinder 204 and the sludge cylinder outer protection cylinder 205 are in clearance fit, and a sealing member is arranged to support and seal, so that the sludge cylinder working material cylinder 204 is suspended on the sludge cylinder piston 201. Mud jar work feed cylinder 204 suspends in on the mud jar piston 201, can effectual compensation the cylindricity error that mud jar work feed cylinder 204 processing caused and the axiality error of assembly can not cause the hole of mud jar work feed cylinder 204 with the eccentric wear phenomenon of mud jar piston 201 prolongs mud jar work feed cylinder 204 and mud jar piston 201 with the life of the sealing member of mud jar piston 201.
In this preferred embodiment of the present invention, preferably, the right outer circle positioning step of the sludge cylinder three-way valve body 208 is provided with a sealing member, and the right outer circle positioning step of the sludge cylinder three-way valve body 208 is installed in the left inner hole of the sludge cylinder working material cylinder 204 for static sealing and is connected with the left end of the sludge cylinder outer protection cylinder 205 sleeved outside the sludge cylinder working material cylinder 204 through a screw. The left end excircle positioning step of mud jar connection end cover 203 sets up the sealing member, mud jar connection end cover 203 is installed static seal in the right-hand member hole of mud jar work feed cylinder 204, through screw and cover the mud jar work feed cylinder 204 is outer the right-hand member of the outer protection section of thick bamboo 205 of mud jar is connected.
In the preferred embodiment of the present invention, the right chamber of the double-acting hydraulic cylinder 100 is supplied with oil, the piston rod 102 of the double-acting hydraulic cylinder pushes the piston 201 of the sludge cylinder leftward to move leftward, the valve core 212 of the sludge cylinder three-way low damping double-acting check valve 202 at the left end of the sludge cylinder 200 moves downward to press the valve core gasket 213 at the sludge cylinder three-way valve body feed inlet so as to close the feed inlet, the valve core 209 of the sludge cylinder three-way low damping double-acting check valve 202 at the left end of the sludge cylinder 200 moves upward to separate from the valve core gasket 211 at the sludge cylinder three-way valve body feed outlet so as to open the feed outlet, and the material in the rodless chamber at the left side of the piston 201 of the sludge cylinder is discharged to the discharge manifold 400 installed in the sludge cylinder 200. Meanwhile, the rod chamber on the right side of the sludge cylinder 200 sucks an external cooling medium.
The left cavity of the double-acting hydraulic oil cylinder 100 is supplied with oil, the piston rod 102 of the double-acting hydraulic oil cylinder pulls the piston 201 of the sludge cylinder to move rightwards, the valve core 212 of the sludge cylinder three-way low-damping double-acting check valve 202 at the left end of the sludge cylinder 200 moves upwards to separate from the valve core sealing pad 213 of the sludge cylinder three-way valve body feeding port so as to open the feeding port, the valve core 209 of the sludge cylinder three-way low-damping double-acting check valve 202 at the left end of the sludge cylinder 200 moves downwards to press the valve core sealing pad 211 of the sludge cylinder three-way valve body feeding port so as to close the feeding port, and the rodless cavity at the left side of the sludge cylinder piston 201 sucks the materials in the feeding shunt pipe 500 installed on the sludge cylinder 200 to finish storing. Meanwhile, the rod cavity on the right side of the sludge cylinder piston 201 discharges the cooling medium.
It is worth mentioning that the single-cylinder single-feed hydraulic piston pump further comprises a stroke-adjusting reversing device, which is installed between the sludge cylinder 200 and the cylinder rear end cover flange 107 of the double-acting hydraulic cylinder 100. Specifically, the stroke adjustment and reversing device comprises a first sealing guide sleeve 104, a first position sensor 105, a reversing valve rod 106, a position detection sensor 108, a second position sensor 109 and a second sealing guide sleeve 110. More specifically, the first sealing guide sleeve 104 and the position sensor 105 are mounted on the sludge cylinder connecting end cover 203 at the right end of the sludge cylinder 200, the second sealing guide sleeve 110 and the second position sensor 109 are mounted on the cylinder rear end cover 111 of the double-acting hydraulic cylinder 100, the reversing valve rod 106 is mounted in the sealing guide sleeve holes of the first sealing guide sleeve 104 and the second sealing guide sleeve 110, the position detection sensor 108 is mounted on the reversing valve rod 106, and the reversing valve rod 106 is mounted in a sludge cylinder piston clamping groove.
It should be noted that the effective strokes at the two ends of the double-acting hydraulic cylinder 100 can be adjusted by adjusting the installation positions of the first position sensor 105 and the second position sensor 109, so that when the double-acting hydraulic cylinder 100 moves back and forth at a high speed, the piston 201 of the sludge cylinder cannot contact the sealing end covers at the two ends of the sludge cylinder, and the cylinder collision caused by large movement inertia is avoided.
More specifically, in this preferred embodiment of the present invention, the effective stroke of the left end of the double acting hydraulic ram 100 is adjusted by adjusting the mounting position of the first position sensor 105 mounted on the sludge cylinder connecting end cap 203. The effective stroke of the right end of the double-acting hydraulic oil cylinder 100 is adjusted by adjusting the mounting position of the second position sensor 109 mounted on the oil cylinder rear end cover flange 107, so that when the double-acting hydraulic oil cylinder 100 moves back and forth at a high speed, the piston of the double-acting hydraulic oil cylinder piston rod 102 cannot contact the guide sleeve 103 and the oil cylinder rear end cover 111, and cylinder collision caused by large movement inertia is avoided.
In the preferred embodiment of the present invention, the right chamber of the double-acting hydraulic oil cylinder 100 is supplied with oil, the piston rod 102 of the double-acting hydraulic oil cylinder pushes the piston 201 of the sludge cylinder leftwards to move, and pulls the reversing valve rod 106 installed in the holes of the first sealing guide sleeve 104 and the second sealing guide sleeve 110 to move leftwards, when the position detection sensor 108 installed on the reversing valve rod 106 approaches the first position sensor 105 installed on the sludge cylinder connecting end cover 203, the first position sensor 105 sends a signal to a hydraulic system to reverse the reversing valve, and the left chamber of the double-acting hydraulic oil cylinder 100 is supplied with oil; the piston rod 102 of the double-acting hydraulic oil cylinder pulls the piston 201 of the sludge cylinder to move rightwards, the reversing valve rod 106 arranged in the holes of the first sealing guide sleeve 104 and the second sealing guide sleeve 110 is pushed to move rightwards, when the position detection inductor 108 arranged on the reversing valve rod 106 is close to the second position inductor 109 arranged on the flange 107 of the rear end cover of the oil cylinder, the second position inductor 109 sends a signal to a hydraulic system to reverse the reversing valve, oil is supplied to the right cavity of the double-acting hydraulic oil cylinder 100, and the cycle is repeated.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (14)
1. A single-cylinder single-feed hydraulic piston pump is characterized in that,
the sludge pump comprises a double-acting hydraulic oil cylinder and a sludge cylinder, wherein the sludge cylinder is connected with the double-acting hydraulic oil cylinder, the double-acting hydraulic oil cylinder is provided with a double-acting hydraulic oil cylinder piston rod, the sludge cylinder is provided with a sludge cylinder piston, the double-acting hydraulic oil cylinder piston rod is connected with the sludge cylinder piston, the double-acting hydraulic oil cylinder piston rod drives the sludge cylinder piston to move back and forth, an upper discharge port one-way valve and a lower feed port one-way valve of the sludge cylinder are opened and closed alternately to complete feeding and discharging, the reciprocating movement realizes material pumping, the sludge cylinder further comprises a sludge cylinder working material cylinder and a sludge cylinder outer protection cylinder, the sludge cylinder working material cylinder is sleeved in the sludge cylinder outer protection cylinder, and cooling ports are arranged at two ends of the sludge cylinder outer protection cylinder, an annular cavity is arranged between the sludge cylinder working material cylinder and the sludge cylinder outer protection cylinder, sealing pieces are arranged at the two ends of the sludge cylinder working material cylinder and the outer protection cylinder in a clearance fit manner for supporting and sealing, the sludge cylinder working material cylinder is suspended on the sludge cylinder piston,
wherein the single-cylinder single-feed hydraulic piston pump also comprises a stroke adjusting reversing device which is arranged between the sludge cylinder and the double-acting hydraulic oil cylinder, wherein the stroke adjusting reversing device comprises a first sealing guide sleeve, a first position sensor, a reversing valve rod, a position detection sensor, a second position sensor and a second sealing guide sleeve, wherein the first sealing guide bush and the first position sensor are installed at an end of the sludge tank, the second position sensor and the second seal guide sleeve are mounted at the end of the double-acting hydraulic oil cylinder, the reversing valve rod is arranged in the sealing guide sleeve holes of the first sealing guide sleeve and the second sealing guide sleeve, the position detection inductor is mounted on the reversing valve rod, and the reversing valve rod is mounted in the sludge cylinder piston;
the single-cylinder single-feeding hydraulic piston pump comprises a sludge cylinder, a single-cylinder single-feeding hydraulic piston pump, a sludge cylinder, a feeding manifold and a discharging flow dividing pipe, wherein the sludge cylinder further comprises a three-way low-damping double-acting one-way valve of the sludge cylinder, the three-way low-damping double-acting one-way valve of the sludge cylinder comprises a three-way valve body of the sludge cylinder, the single-cylinder single-feeding hydraulic piston pump further comprises the discharging manifold and the feeding flow dividing pipe, and the upper port and the lower port of the three-way valve body of the sludge cylinder are respectively connected with the discharging manifold and the feeding flow dividing pipe through flanges;
the sludge cylinder also comprises a sludge cylinder working material cylinder, and the middle opening of the sludge cylinder three-way valve body is connected with the sludge cylinder working material cylinder and is used as a rodless cavity sealing end cover of the sludge cylinder working material cylinder;
the sludge cylinder also comprises a sludge cylinder working material cylinder and a sludge cylinder external protection cylinder, the sludge cylinder external protection cylinder is sleeved on the sludge cylinder working material cylinder, and the middle opening of the sludge cylinder three-way valve body is connected with the sludge cylinder external protection cylinder at one end of a rodless cavity of the sludge cylinder working material cylinder and is used as a rodless cavity sealing end cover of the sludge cylinder working material cylinder;
wherein the three-way low-damping double-acting one-way valve further comprises a sludge cylinder three-way valve body discharge port valve core, a sludge cylinder three-way valve body discharge port valve core seat, a sludge cylinder three-way valve body discharge port valve core sealing gasket, a sludge cylinder three-way valve body feed port valve core and a sludge cylinder three-way valve body feed port valve core sealing gasket, wherein the sludge cylinder three-way valve body discharge port valve core seat is installed in an upper opening inner hole of the sludge cylinder three-way valve body, the sludge cylinder three-way valve body discharge port valve core is installed in an inner hole of the sludge cylinder three-way valve body discharge port valve core seat in a sliding fit manner, the sludge cylinder three-way valve body feed port valve core sealing gasket is installed on an inner hole step of the sludge cylinder three-way valve body below the sludge cylinder three-way valve body discharge port valve core, the sludge cylinder three-way valve body feed port valve core is installed in a valve core seat inner hole at the upper part of the sludge cylinder three-way valve body feed port, the sealing gasket of the feed port valve core of the sludge cylinder three-way valve body is arranged on the step of the inner hole of the sludge cylinder three-way valve body below the feed port valve core of the sludge cylinder three-way valve body.
2. The single-cylinder single-feed hydraulic piston pump of claim 1, wherein the upper discharge port check valve of the sludge cylinder is of a straight-through structure, the lower discharge port check valve of the sludge cylinder is of a straight-through structure, materials directly enter the sludge cylinder from the straight-through lower discharge port check valve of the sludge cylinder to complete feeding, and the materials are discharged through the straight-through upper discharge port check valve of the sludge cylinder to complete discharging.
3. A single cylinder single feed hydraulic piston pump as in claim 1, further comprising an outlet manifold mounted to the outlet of each said bowl, and a feed manifold mounted to the inlet of each said bowl, said bowl upper outlet check valve and said bowl lower inlet check valve being of a through configuration, material from said inlet manifold entering said bowl directly through said through lower inlet check valve, material from said bowl entering said outlet manifold directly through said through upper outlet check valve.
4. A single cylinder single feed hydraulic piston pump as in claim 1, wherein said sludge cylinder further comprises a sludge cylinder working cylinder, said upper discharge port check valve of said sludge cylinder is of a through type construction, said lower feed port check valve of said sludge cylinder is of a through type construction, material is directly fed into said sludge cylinder working cylinder through said through type lower feed port check valve of said sludge cylinder, and material is directly discharged from said sludge cylinder working cylinder of said sludge cylinder through said through type upper discharge port check valve of said sludge cylinder.
5. The single cylinder, single feed hydraulic piston pump of claim 1, wherein the sludge cylinder further comprises a three-way, low damping, double acting, one-way valve of the sludge cylinder, the three-way, low damping, double acting, one-way valve being an integrated structure having an upper discharge, one-way check function and a lower feed, one-way check function.
6. The single-cylinder single-feed hydraulic piston pump of claim 1, wherein the sludge cylinder further comprises a three-way low-damping double-acting check valve of the sludge cylinder, the three-way low-damping double-acting check valve of the sludge cylinder comprises a three-way valve body of the sludge cylinder, the three-way valve body of the sludge cylinder is an integrated tee, the inside of an upper opening of the three-way valve body of the sludge cylinder is a straight-through upper discharge opening check valve of the sludge cylinder, and the inside of a lower opening of the three-way valve body of the sludge cylinder is a straight-through lower feed opening check valve of the sludge cylinder.
7. The single cylinder single feed hydraulic piston pump of claim 1, wherein the outer circular positioning step of the end of the sludge cylinder three-way valve body is provided with a sealing member and is mounted in the inner hole of the end of the sludge cylinder working cylinder for static sealing, wherein the sludge cylinder three-way valve body is connected with the end of the sludge cylinder outer protective cylinder.
8. The single cylinder, single feed hydraulic piston pump of claim 1, wherein the sludge cylinder further comprises a sludge cylinder working cylinder, the sludge cylinder further comprising a sludge cylinder connecting end cap, the sludge cylinder connecting end cap serving as a rod cavity sealing end cap of the sludge cylinder working cylinder.
9. The single cylinder single feed hydraulic piston pump of claim 1, wherein the sludge cylinder further comprises a sludge cylinder three-way valve body, the sludge cylinder three-way valve body is an integrated three-way, the inside of the upper opening of the sludge cylinder three-way valve body is a straight-through upper discharge port one-way valve of the sludge cylinder, and the inside of the lower opening of the sludge cylinder three-way valve body is a straight-through lower feed port one-way valve of the sludge cylinder.
10. The single cylinder single feed hydraulic piston pump of claim 9, wherein the sludge cylinder further comprises a sludge cylinder working cylinder and a sludge cylinder outer protecting cylinder, the sludge cylinder outer protecting cylinder is sleeved on the sludge cylinder working cylinder, an outer circle positioning step of the end of the sludge cylinder three-way valve body is provided with a sealing member and is installed in an inner hole of the end of the sludge cylinder working cylinder for static sealing, wherein the end of the sludge cylinder three-way valve body and the end of the sludge cylinder outer protecting cylinder are connected.
11. The single cylinder single feed hydraulic piston pump of claim 1, wherein the sludge cylinder piston is a sliding seal fit in the inner bore of the sludge cylinder working cylinder, the sludge cylinder outer protective cylinder is sleeved on the outer circle of the sludge cylinder working cylinder, and the annular cavity is formed between the outer circle of the sludge cylinder working cylinder and two ends of the inner bore of the sludge cylinder outer protective cylinder.
12. A single cylinder single feed hydraulic piston pump as in any of claims 1 to 11 wherein the sludge cylinder piston of the sludge cylinder and the double acting hydraulic cylinder piston rod of the double acting hydraulic cylinder are axially and radially fixed by a snap key and a self sealing nut axially locks the seal.
13. The single cylinder single feed hydraulic piston pump of any one of claims 1 to 11, wherein the sludge cylinders each further comprise a sludge cylinder self-locking nut and a sludge cylinder snap key, wherein the sludge cylinder piston is mounted at the end of the double acting hydraulic cylinder piston rod, the sludge cylinder snap key is snapped into a snap key slot at the end of the double acting hydraulic cylinder piston rod, and the sludge cylinder self-locking nut is screwed onto an external thread at the end of the double acting hydraulic cylinder piston rod.
14. A single cylinder single feed hydraulic piston pump as claimed in any one of claims 1 to 11, wherein said double acting hydraulic ram further comprises a cylinder, a buffer plunger and a guide sleeve, said double acting hydraulic ram piston rod and said buffer plunger are fitted within said cylinder, said guide sleeve is mounted at the end of said cylinder, the piston of said double acting hydraulic ram piston rod is a sliding seal fit within the bore of said guide sleeve.
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| CN116104724B (en) * | 2022-12-28 | 2024-03-19 | 镇江长城注浆设备有限公司 | Cone valve type hydraulic grouting pump with hydraulic control reversing and large discharge capacity |
| CN116733706A (en) * | 2023-08-11 | 2023-09-12 | 必奥新能源科技有限公司 | Discharging pump and device for discharging biogas residues and biogas slurry |
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| EP0064481A1 (en) * | 1981-04-30 | 1982-11-10 | SAFE S.r.l. | A reciprocating, hydraulically operated, positive displacement compressor |
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