CN117869421B - Mushroom head type hydraulic cylinder suitable for ultrahigh pressure filter press - Google Patents
Mushroom head type hydraulic cylinder suitable for ultrahigh pressure filter press Download PDFInfo
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- CN117869421B CN117869421B CN202410269583.1A CN202410269583A CN117869421B CN 117869421 B CN117869421 B CN 117869421B CN 202410269583 A CN202410269583 A CN 202410269583A CN 117869421 B CN117869421 B CN 117869421B
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- 235000001674 Agaricus brunnescens Nutrition 0.000 title claims abstract description 76
- 210000004907 gland Anatomy 0.000 claims abstract description 79
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 14
- 230000009471 action Effects 0.000 description 14
- 238000007789 sealing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
-
- 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
- F15B15/1423—Component parts; Constructional details
-
- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
A mushroom head type hydraulic cylinder suitable for an ultrahigh pressure filter press comprises a cylinder body and a piston rod which reciprocates along an inner hole of the cylinder body, wherein a piston which drives the piston rod to move is arranged in the cylinder body; the piston rod comprises a piston rod main body and mushroom-type connectors formed at the end part of the piston rod main body, and the mushroom-type connectors and the piston are positioned at the opposite ends of the piston rod; the mushroom-type connector is sleeved with a gland assembly which moves synchronously with the mushroom-type connector, the gland assembly comprises a sleeve and a mushroom seat, the sleeve and the mushroom seat are connected, an annular groove which is axially clamped with the sleeve is formed in the mushroom-type connector, and an arc-shaped groove which is matched with the end part of the mushroom-type connector is formed in the mushroom seat; compared with the prior art, through setting up mushroom formula connector at the piston rod tip, will cup joint the axial joint between gland subassembly and the mushroom formula connector on mushroom formula connector, realize driving the reciprocating motion of gland subassembly under the reciprocating motion effect of mushroom formula connector in step.
Description
Technical Field
The invention relates to the technical field of filter pressing equipment, in particular to a mushroom head type hydraulic cylinder suitable for an ultrahigh pressure filter press.
Background
A filter press is a common solid-liquid separation device, and uses a special filter medium to apply a certain pressure to an object so as to dialyze out liquid. The carbon steel filter plate is welded and formed, and the filter plate has stable performance, convenient operation, safety and labor saving; high temperature resistance, high pressure resistance, durability and the like. . Is widely applied to industries such as chemical industry, pharmacy, metallurgy, dye, food, brewing, ceramic, environmental protection and the like.
The hydraulic cylinder is a core component of the ultrahigh pressure filter press, the compression force of the ultrahigh pressure filter press is large, the bearing force born by the oil cylinder is relatively large, under the condition of horizontal installation, in order to avoid damage to components such as sealing caused by overlarge dead weight of the cylinder diameter of the oil cylinder, the hydraulic cylinder adopts a mode of multi-cylinder installation, under the synchronous action of a plurality of oil cylinders, the requirement of high pressure filter pressing on the same object is met, but under the action of the plurality of oil cylinders, when the concentricity of piston rods of the plurality of oil cylinders deviates, the oil cylinders can be unbalanced to cause oil leakage, the integral filter pressing effect is influenced, so that the concentricity requirement on the piston rods of the plurality of oil cylinders is relatively high, and meanwhile, the traditional hydraulic cylinder is easy to leak under the high pressure environment, and the service life and the running stability of the equipment are influenced.
Chinese patent No. CN116753207a discloses a two-plate injection molding machine mode locking high pressure oil cylinder mechanism and installation method, including hydro-cylinder casing, tie bar, be equipped with the piston in the hydro-cylinder casing, tie bar stretches into the hydro-cylinder casing with the piston is fixed, tie bar stretches into the one end of hydro-cylinder casing is equipped with a plurality of recesses to be equipped with the gland, cup jointed the external member on the recess, the external member with recess fit joint, gland, external member, piston pass through screw through connection. The die locking high-pressure piston in the prior art is divided into three parts, namely a piston, a sleeve and a gland, so that the original thread stress is changed into the existing annular groove surface stress, and the stress concentration is effectively reduced.
The high-pressure oil cylinder disclosed by the above is connected with the piston through the sleeve piece and the gland which are arranged on the tie rod, and the movement of the gland, the sleeve piece and the tie rod is synchronously driven under the action of the movement of the piston, and the tie rod is guided to move through the movement of the piston because the sleeve piece of the high-pressure oil cylinder is clamped on the Yu Gelin column, but when the filter pressing operation is realized, the stress of the tie rod is easily offset, so that the integral filter pressing effect is influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the mushroom head type hydraulic cylinder which is stable in filter pressing and controllable in direction and is suitable for an ultrahigh pressure filter press.
In order to achieve the above object, the present invention adopts the following technical scheme: a mushroom head type hydraulic cylinder suitable for an ultrahigh pressure filter press comprises a cylinder body and a piston rod which reciprocates along an inner hole of the cylinder body, wherein a piston which drives the piston rod to move is arranged in the cylinder body; the piston rod comprises a piston rod main body and mushroom-type connectors formed at the end part of the piston rod main body, and the mushroom-type connectors and the piston are positioned at the opposite ends of the piston rod; the mushroom-type connector is sleeved with a gland assembly which moves synchronously with the mushroom-type connector, the gland assembly comprises a sleeve and a mushroom seat, the sleeve and the mushroom seat are connected, an annular groove which is axially clamped with the sleeve is formed in the mushroom-type connector, and an arc-shaped groove which is matched with the end part of the mushroom-type connector is formed in the mushroom seat; the cylinder body is connected with a protecting sleeve for guiding the piston rod and the gland assembly simultaneously.
As a preferable scheme of the invention, the sleeve is abutted with the mushroom seat, a positioning protrusion which is clamped with the mushroom seat is formed on the sleeve, and a connecting screw which is connected with the mushroom seat is arranged on the sleeve.
As a preferable mode of the invention, the central line of the sleeve and the mushroom seat coincides with the central line of the piston rod main body, and the sleeve is circumferentially flush with the mushroom seat.
As a preferable scheme of the invention, an oil filling port communicated with the arc-shaped groove is formed on the mushroom seat, and the oil filling port is arranged along the radial direction of the piston rod main body.
As a preferable scheme of the invention, the protective sleeve comprises a piston rod guide sleeve, a transition sleeve and a gland guide sleeve which are concentrically arranged, wherein a piston rod guide hole for guiding a piston rod is formed in the middle of the piston rod guide sleeve, and a gland guide hole for guiding a gland assembly is formed in the middle of the gland guide sleeve.
As a preferable scheme of the invention, the piston rod guide sleeve is embedded in the cylinder body, a limiting ring arranged along the circumferential direction of the piston rod guide sleeve is formed on the piston rod guide sleeve, and a matching groove axially abutting against the limiting ring is formed in the cylinder body.
As a preferable scheme of the invention, a compression ring for compressing the limiting ring is also arranged in the cylinder body, and the compression ring and the cylinder body are respectively abutted against two opposite sides of the limiting ring.
As a preferable scheme of the invention, the end part of the cylinder body is provided with a positioning ring which is simultaneously connected with the cylinder body, the compression ring and the piston rod guide sleeve, an oil port which is communicated with the interior of the cylinder body is formed in the piston rod guide sleeve, and the positioning ring is provided with a fastening piece which is respectively connected with the cylinder body, the compression ring and the piston rod guide sleeve.
As a preferable scheme of the invention, the end part of the gland guide sleeve is provided with a guide ring which is abutted against the gland assembly, and the guide ring comprises an abutting circular ring and a horn-shaped calibration circular ring which are connected.
As a preferable mode of the invention, the end part of the mushroom-type connector forms a spherical structure corresponding to the central line of the piston rod.
Compared with the prior art, the invention has the beneficial effects that: through set up mushroom formula connector at the piston rod tip to under the arc groove effect of mushroom formula connector, will cup joint the axial joint between gland subassembly and the mushroom formula connector on mushroom formula connector, realize driving the reciprocating motion of gland subassembly under the reciprocating motion effect of mushroom formula connector in step, simultaneously under the effect of lag, guide the reciprocating motion direction of piston rod and gland subassembly simultaneously, ensure the stability and the concentricity of piston rod and gland subassembly in the filter-pressing in-process.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the connection of the piston rod to the gland assembly;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic illustration of the connection of the piston to the cylinder;
FIG. 5 is a schematic structural view of a protective sheath;
FIG. 6 is a cross-sectional view of a protective sheath;
FIG. 7 is a schematic structural view of a piston rod;
FIG. 8 is a schematic view in semi-section of a gland assembly;
Reference numerals: cylinder 1, mating groove 11, sealing ring 12, piston rod 2, piston rod main part 21, mushroom-type connector 22, ring channel 23, piston 3, gland subassembly 4, external member 41, mushroom seat 42, connecting screw 43, location boss 44, oiling mouth 45, arc-shaped groove 46, lag 5, piston rod uide bushing 51, transition cover 52, gland uide bushing 53, spacing ring 54, uide ring 55, abutment ring 56, calibration ring 57, piston rod guiding hole 58, gland guiding hole 59, locating ring 6, fastener 61, clamping ring 7, hydraulic fluid port 8.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-8, a mushroom head type hydraulic cylinder suitable for an ultrahigh pressure filter press comprises a cylinder body 1 and a piston rod 2 which reciprocates along an inner hole of the cylinder body 1, wherein a piston 3 which drives the piston rod 2 to move is arranged in the cylinder body 1; the piston rod 2 comprises a piston rod main body 21 and mushroom-shaped connectors 22 formed at the end part of the piston rod main body 21, wherein the mushroom-shaped connectors 22 and the piston 3 are positioned at the opposite ends of the piston rod 2; the mushroom-type connector 22 is sleeved with a gland assembly 4 which moves synchronously with the mushroom-type connector 22, the gland assembly 4 comprises a sleeve 41 and a mushroom seat 42 which are connected, the mushroom-type connector 22 is provided with an annular groove 23 which is axially clamped with the sleeve 41, and an arc-shaped groove 46 which is matched with the end part of the mushroom-type connector 22 is formed in the mushroom seat 42; the cylinder body 1 is connected with a protective sleeve 5 for guiding the piston rod 2 and the gland assembly 4 at the same time.
The cylinder body 1 is of a cylindrical structure, the piston rod 2 reciprocates along the axial direction of the cylinder body 1 under the action of the piston 3, the piston rod main body 21 and the mushroom type connector 22 are of an integrated structure, the mushroom type connector 22 is arranged along the axial direction of the piston rod main body 21, and the piston rod main body 21 and the mushroom type connector 22 are synchronously driven to reciprocate along the axial direction of the piston 3.
The gland assembly 4 is axially clamped with the mushroom-type connector 22 through the annular groove 23, so that the gland assembly 4 is synchronously driven to move in the axial reciprocating motion of the mushroom-type connector 22, the piston rod 2 and the gland assembly 4 are always abutted against the protective sleeve 5 in the moving process, the guiding effect on the piston rod 2 and the gland assembly 4 is realized under the action of the protective sleeve 5, and the stability of the piston rod 2 and the gland assembly 4 in the moving process is ensured.
The sleeve 41 is abutted with the mushroom seat 42, a positioning protrusion 44 which is clamped with the mushroom seat 42 is formed on the sleeve 41, a positioning groove which is clamped with the positioning protrusion 44 is formed on the mushroom seat 42 correspondingly, and under the matching action of the positioning protrusion 44 and the positioning groove, the radial positioning between the sleeve 41 and the mushroom seat 42 is realized, and the convenient clamping positioning between the sleeve 41 and the mushroom seat 42 is realized.
The external member 41 is provided with the connecting screw 43 that is connected with the mushroom seat 42, and the connecting screw 43 sets up along the axial direction of gland subassembly 4, and connecting screw 43 sets up towards cylinder body 1 for connecting screw 43 sets up in gland subassembly 4 inboard, thereby can satisfy the mushroom seat 42 setting of different length.
The external member 41 is provided with a plurality of connecting screws 43 connected with the mushroom seat 42, the plurality of connecting screws 43 are arranged along the circumferential direction of the circle center of the external member 41, under the action of the connecting screws 43, the fixed connection between the external member 41 and the mushroom seat 42 is realized, the wrapping arrangement of the end part of the mushroom type connector 22 is realized under the action of the external member 41 and the mushroom seat 42, and the movement of the mushroom type connector 22 is ensured to synchronously drive the reciprocating motion of the integral gland assembly 4.
The center line of the sleeve 41 and the mushroom seat 42 coincides with the center line of the piston rod main body 21, and the sleeve 41 is circumferentially flush with the mushroom seat 42.
The mushroom seat 42 is provided with the oil filling port 45 communicated with the arc-shaped groove 46, the oil filling port 45 is arranged along the radial direction of the piston rod main body 21, the arc-shaped groove 46 corresponds to the end part of the mushroom-type connector 22, the end part of the mushroom-type connector 22 forms a spherical structure corresponding to the central line of the piston rod 2, the contact area between the gland assembly 4 and the mushroom-type connector 22 is increased under the action of the arc-shaped groove 46, the stable stress of the gland assembly 4 is ensured, lubricating grease is filled between the mushroom-type connector 22 and the mushroom seat 42 through the oil filling port 45, and the influence on the service life of the mushroom seat 42 due to excessive friction caused by direct contact with the mushroom seat 42 in the reciprocation process of the mushroom-type connector 22 is prevented.
The protecting sleeve 5 comprises a piston rod guide sleeve 51, a transition sleeve 52 and a gland guide sleeve 53 which are concentrically arranged, a piston rod guide hole 58 for guiding the piston rod 2 is formed in the middle of the piston rod guide sleeve 51, and a gland guide hole 59 for guiding the gland assembly 4 is formed in the middle of the gland guide sleeve 53.
And under the action of the protective sleeve 5, the mushroom-type connector 22 is protected, and the mushroom-type connector 22 is protected from being polluted and destroyed by dust and the like.
The piston rod guide sleeve 51, the transition sleeve 52 and the gland guide sleeve 53 are of hollow structures, the hollow structures of the piston rod guide sleeve 51, the transition sleeve 52 and the gland guide sleeve 53 are communicated, the piston rod guide sleeve 51 and the transition sleeve 52 are sleeved on the piston rod main body 21, the piston rod guide hole 58 corresponds to the cross section size of the piston rod main body 21, the piston rod main body 21 is ensured to be always abutted against the piston rod guide sleeve 51 and the transition sleeve 52 in the reciprocating motion process, the gland guide hole 59 corresponds to the cross section size of the gland assembly 4, and the gland assembly 4 is ensured to be always abutted against the gland guide sleeve 53 in the reciprocating motion process.
The piston rod guide sleeve 51 is embedded in the cylinder body 1, a limiting ring 54 arranged along the circumferential direction of the piston rod guide sleeve 51 is formed on the piston rod guide sleeve 51, and a matching groove 11 axially abutting against the limiting ring 54 is formed in the cylinder body 1.
The piston rod guide sleeve 51 is sleeved with a sealing ring which is abutted against the inner wall of the cylinder body 1, so that the sealing connection between the piston rod guide sleeve 51 and the cylinder body 1 is ensured, the limiting ring 54 is arranged along the radial direction of the piston rod main body 21, and the axial movement of the piston rod guide sleeve 51 is limited and abutted under the action of the abutting of the limiting ring 54 and the matching groove 11.
The cylinder body 1 is also internally provided with a compression ring 7 for compressing the limiting ring 54, the compression ring 7 and the cylinder body 1 are respectively abutted against two opposite sides of the limiting ring 54, meanwhile, the compression ring 7 is abutted against the limiting ring 54, and when the compression ring 7 and the matching groove 11 are in a relatively static state, the clamping of the limiting ring 54 is realized, so that the limiting ring 54, the compression ring 7 and the matching groove 11 are always in the relatively static state, and the stability of the piston rod guide sleeve 51 in the cylinder body 1 is ensured.
The cylinder body 1 tip is equipped with the holding ring 6 that is connected with cylinder body 1, clamping ring 7 and piston rod uide bushing 51 simultaneously, be formed with the hydraulic fluid port 8 that is linked together with cylinder body 1 inside in the piston rod uide bushing 51, carry out the oiling to cylinder body 1 inside under the effect of hydraulic fluid port 8, and be equipped with the fastener 61 that is connected with cylinder body 1, clamping ring 7 and piston rod uide bushing 51 respectively on the holding ring 6, the radial direction setting of piston rod main part 21 is followed to holding ring 6, realize fixed connection between holding ring 6 and the cylinder body 1 through fastener 61, and under the effect of fastener 61, realize fixed connection between clamping ring 7 and piston rod uide bushing 51 and the holding ring 6, thereby realize cylinder body 1, clamping ring 7 and piston rod uide bushing 51 under the effect fixed connection of holding ring 6.
The end of the gland guide sleeve 53 is provided with a guide ring 55 abutted against the gland assembly 4, the guide ring 55 comprises an abutting ring 56 and a horn-shaped calibration ring 57 which are connected, the abutting ring 56 is used for being abutted against the gland assembly 4 to realize the guide and stability of the gland assembly 4 in the reciprocating process, and the calibration ring 57 is used for calibrating the connection between the gland assembly 4 and the mushroom-type connector 22.
Since the connecting screw 43 is arranged towards the cylinder body 1, the connecting screw 43 is arranged at the inner side of the gland assembly 4, when the gland assembly 4 is required to be installed or replaced at this time, the piston rod main body 21 needs to be adjusted to be in an extending state under the action of the piston 3 until the mushroom type connector 22 is separated from the gland guide sleeve 53, so that the gland assembly 4 is convenient to install and screw the connecting screw 43, meanwhile, the piston rod main body 21 needs to be retracted to an initial state, at this time, the gland assembly 4 synchronously moves along with the retraction of the piston rod main body 21, and due to the fact that the machining error and the installation error exist in the installation process of the gland assembly 4, the position of the gland assembly 4 on the mushroom type connector 22 is corrected under the action of the horn-shaped calibration ring 57, and therefore the machining error and the installation error exist in the installation process of the gland assembly 4, and the fact that the center line of the gland assembly 4 and the center line of the piston rod main body 21 are ensured to be in the same straight line at this time.
The piston 3 is sleeved with a sealing ring 12 which is arranged in a sealing way with the cylinder body 1 and used for preventing high-pressure liquid from leaking, and the piston 3 is sleeved with at least two sealing rings 12 which are arranged in a sealing way with the cylinder body 1.
In the in-service use, with the embedded setting of protection casing 5 part in cylinder body 1, ensure that protection casing 5 has stability throughout in cylinder body 1 use, and extend piston rod 2 through the effect of piston 3, until behind the mushroom-type connector 22 of piston rod 2 moved outside protection casing 5, install gland subassembly 4 on mushroom-type connector 22, and retract piston rod 2 through the effect of piston 3, gland subassembly 4 carries out error correction under the effect of calibration ring 57 this moment, ensure that the central line of gland subassembly 4 and the central line of piston rod main part 21 are in same straight line this moment, thereby can realize the control to the output direction of piston rod main part 21, ensure under many cylinder bodies 1 combined action, satisfy the concentricity of each cylinder body 1 output direction, improve the filter-pressing effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more herein: the cylinder body 1, the matching groove 11, the sealing ring 12, the piston rod 2, the piston rod main body 21, the mushroom-shaped connector 22, the annular groove 23, the piston 3, the gland assembly 4, the sleeve 41, the mushroom seat 42, the connecting screw 43, the positioning boss 44, the oil filling port 45, the arc-shaped groove 46, the protection sleeve 5, the piston rod guide sleeve 51, the transition sleeve 52, the gland guide sleeve 53, the limiting ring 54, the guide ring 55, the abutting ring 56, the calibration ring 57, the piston rod guide hole 58, the gland guide hole 59, the positioning ring 6, the fastening piece 61, the pressure ring 7, the oil filling port 8 and other terms are used, but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (8)
1. A mushroom head type hydraulic cylinder suitable for an ultrahigh pressure filter press comprises a cylinder body (1) and a piston rod (2) which reciprocates along an inner hole of the cylinder body (1), wherein a piston (3) which drives the piston rod (2) to move is arranged in the cylinder body (1); the piston rod (2) comprises a piston rod main body (21) and mushroom-shaped connectors (22) formed at the end part of the piston rod main body (21), wherein the mushroom-shaped connectors (22) and the piston (3) are positioned at the opposite ends of the piston rod (2); the mushroom type connector (22) is sleeved with a gland assembly (4) which moves synchronously with the mushroom type connector (22), the gland assembly (4) comprises a sleeve (41) and a mushroom seat (42) which are connected, an annular groove (23) which is axially clamped with the sleeve (41) is formed in the mushroom type connector (22), and an arc-shaped groove (46) which is matched with the end part of the mushroom type connector (22) is formed in the mushroom seat (42); the cylinder body (1) is connected with a protective sleeve (5) for guiding the piston rod (2) and the gland assembly (4) simultaneously; the protecting sleeve (5) comprises a piston rod guide sleeve (51), a transition sleeve (52) and a gland guide sleeve (53) which are concentrically arranged, a piston rod guide hole (58) for guiding the piston rod (2) is formed in the middle of the piston rod guide sleeve (51), and a gland guide hole (59) for guiding the gland assembly (4) is formed in the middle of the gland guide sleeve (53); the end part of the gland guide sleeve (53) is provided with a guide ring (55) which is abutted with the gland assembly (4), and the guide ring (55) comprises an abutting circular ring (56) and a calibrating circular ring (57) which are connected.
2. A mushroom head type hydraulic cylinder suitable for an ultrahigh pressure filter press according to claim 1, characterized in that the sleeve (41) is abutted against the mushroom seat (42), a positioning protrusion (44) which is clamped with the mushroom seat (42) is formed on the sleeve (41), and a connecting screw (43) which is connected with the mushroom seat (42) is arranged on the sleeve (41).
3. A mushroom head type hydraulic cylinder suitable for use in a super high pressure filter press according to claim 2, wherein the centerline of the sleeve (41) and the mushroom seat (42) coincides with the centerline of the piston rod main body (21), and the sleeve (41) is circumferentially flush with the mushroom seat (42).
4. A mushroom head type hydraulic cylinder suitable for use in a super high pressure filter press according to claim 1, wherein the mushroom seat (42) is formed with an oil filling port (45) communicating with an arc-shaped groove (46), and the oil filling port (45) is disposed along a radial direction of the piston rod main body (21).
5. The mushroom head type hydraulic cylinder suitable for the ultrahigh pressure filter press according to claim 1, wherein the piston rod guide sleeve (51) is arranged in the cylinder body (1) in an embedded mode, a limiting ring (54) arranged along the circumferential direction of the piston rod guide sleeve (51) is formed on the piston rod guide sleeve (51), and a matching groove (11) axially abutted with the limiting ring (54) is formed in the cylinder body (1).
6. The mushroom head type hydraulic cylinder suitable for the ultrahigh pressure filter press according to claim 5, wherein a pressing ring (7) for pressing the limiting ring (54) is further arranged in the cylinder body (1), and the pressing ring (7) and the cylinder body (1) are respectively abutted against two opposite sides of the limiting ring (54).
7. The mushroom head type hydraulic cylinder suitable for the ultrahigh pressure filter press according to claim 6, wherein a positioning ring (6) connected with the cylinder body (1), the compression ring (7) and the piston rod guide sleeve (51) is arranged at the end part of the cylinder body (1), an oil port (8) communicated with the interior of the cylinder body (1) is formed in the piston rod guide sleeve (51), and a fastening piece (61) connected with the cylinder body (1), the compression ring (7) and the piston rod guide sleeve (51) is arranged on the positioning ring (6).
8. A mushroom head type hydraulic cylinder suitable for use in a super high pressure filter press according to claim 1, wherein the end of the mushroom type connector (22) forms a spherical structure corresponding to the center line of the piston rod (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2024100552265 | 2024-01-15 | ||
| CN202410055226.5A CN117662568A (en) | 2024-01-15 | 2024-01-15 | Mushroom head type hydraulic cylinder suitable for ultrahigh pressure filter press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117869421A CN117869421A (en) | 2024-04-12 |
| CN117869421B true CN117869421B (en) | 2024-05-28 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410055226.5A Withdrawn CN117662568A (en) | 2024-01-15 | 2024-01-15 | Mushroom head type hydraulic cylinder suitable for ultrahigh pressure filter press |
| CN202410269583.1A Active CN117869421B (en) | 2024-01-15 | 2024-03-11 | Mushroom head type hydraulic cylinder suitable for ultrahigh pressure filter press |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410055226.5A Withdrawn CN117662568A (en) | 2024-01-15 | 2024-01-15 | Mushroom head type hydraulic cylinder suitable for ultrahigh pressure filter press |
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| CN (2) | CN117662568A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1151009A (en) * | 1997-08-06 | 1999-02-23 | Nok Corp | Fluid pressure actuator |
| FR2779499A1 (en) * | 1998-06-09 | 1999-12-10 | Valeo | Hydraulic clutch control for motor vehicle |
| JP2007256429A (en) * | 2006-03-22 | 2007-10-04 | Sanwa Denki Kogyo Co Ltd | Optical fiber core wire holding structure of optical connector |
| JP2008101508A (en) * | 2006-10-18 | 2008-05-01 | Daikin Ind Ltd | Reciprocating compressor |
| DE102007015860A1 (en) * | 2007-04-03 | 2008-10-09 | Zf Friedrichshafen Ag | Protective cover for a piston-cylinder unit |
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| CN109253127A (en) * | 2018-03-22 | 2019-01-22 | 太原科技大学 | A kind of ball head structure anti-bias load heavy duty servo hydraulic cylinder |
| CN209704977U (en) * | 2019-04-24 | 2019-11-29 | 扬州永存液压机电有限公司 | A kind of guide sleeve has the hydraulic cylinder of buffer unit |
| CN211623859U (en) * | 2019-12-13 | 2020-10-02 | 浙江科力车辆控制系统有限公司 | Hydro-cylinder with protection is anti inclined to one side function safety cover |
| CN213540917U (en) * | 2020-11-20 | 2021-06-25 | 泸州沱江液压件有限公司 | Hydraulic steel ball hinge type piston connecting structure |
| CN214304631U (en) * | 2020-12-31 | 2021-09-28 | 大连诺美液压件有限公司 | Hydraulic cylinder with clamping key type locking |
| CN215805490U (en) * | 2021-07-19 | 2022-02-11 | 山东瀚得液压机械有限公司 | Steering oil cylinder of tractor |
| CN217328091U (en) * | 2022-05-18 | 2022-08-30 | 宝鸡市振兴石油化工配件制造有限公司 | Drilling mud pump ball pivot connecting piston rod |
| CN219672796U (en) * | 2023-05-30 | 2023-09-12 | 烟台东德氢能技术有限公司 | Spherical joint mechanism for reducing unbalanced load of piston of reciprocating compressor |
-
2024
- 2024-01-15 CN CN202410055226.5A patent/CN117662568A/en not_active Withdrawn
- 2024-03-11 CN CN202410269583.1A patent/CN117869421B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1151009A (en) * | 1997-08-06 | 1999-02-23 | Nok Corp | Fluid pressure actuator |
| FR2779499A1 (en) * | 1998-06-09 | 1999-12-10 | Valeo | Hydraulic clutch control for motor vehicle |
| JP2007256429A (en) * | 2006-03-22 | 2007-10-04 | Sanwa Denki Kogyo Co Ltd | Optical fiber core wire holding structure of optical connector |
| JP2008101508A (en) * | 2006-10-18 | 2008-05-01 | Daikin Ind Ltd | Reciprocating compressor |
| DE102007015860A1 (en) * | 2007-04-03 | 2008-10-09 | Zf Friedrichshafen Ag | Protective cover for a piston-cylinder unit |
| WO2016037628A1 (en) * | 2014-09-10 | 2016-03-17 | Festo Ag & Co. Kg | Working cylinder |
| WO2017012112A1 (en) * | 2015-07-23 | 2017-01-26 | 童欣 | Oil damper for train |
| CN204985161U (en) * | 2015-09-06 | 2016-01-20 | 四川泸州派克斯液压机械有限公司 | Superhigh pressure hydro -cylinder |
| CN109253127A (en) * | 2018-03-22 | 2019-01-22 | 太原科技大学 | A kind of ball head structure anti-bias load heavy duty servo hydraulic cylinder |
| CN209704977U (en) * | 2019-04-24 | 2019-11-29 | 扬州永存液压机电有限公司 | A kind of guide sleeve has the hydraulic cylinder of buffer unit |
| CN211623859U (en) * | 2019-12-13 | 2020-10-02 | 浙江科力车辆控制系统有限公司 | Hydro-cylinder with protection is anti inclined to one side function safety cover |
| CN213540917U (en) * | 2020-11-20 | 2021-06-25 | 泸州沱江液压件有限公司 | Hydraulic steel ball hinge type piston connecting structure |
| CN214304631U (en) * | 2020-12-31 | 2021-09-28 | 大连诺美液压件有限公司 | Hydraulic cylinder with clamping key type locking |
| CN215805490U (en) * | 2021-07-19 | 2022-02-11 | 山东瀚得液压机械有限公司 | Steering oil cylinder of tractor |
| CN217328091U (en) * | 2022-05-18 | 2022-08-30 | 宝鸡市振兴石油化工配件制造有限公司 | Drilling mud pump ball pivot connecting piston rod |
| CN219672796U (en) * | 2023-05-30 | 2023-09-12 | 烟台东德氢能技术有限公司 | Spherical joint mechanism for reducing unbalanced load of piston of reciprocating compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117662568A (en) | 2024-03-08 |
| CN117869421A (en) | 2024-04-12 |
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