CN104595270A - Threaded cartridge type anti-swing valve - Google Patents
Threaded cartridge type anti-swing valve Download PDFInfo
- Publication number
- CN104595270A CN104595270A CN201510047490.5A CN201510047490A CN104595270A CN 104595270 A CN104595270 A CN 104595270A CN 201510047490 A CN201510047490 A CN 201510047490A CN 104595270 A CN104595270 A CN 104595270A
- Authority
- CN
- China
- Prior art keywords
- valve body
- piston
- spool
- valve
- hydraulic fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a threaded cartridge type anti-swing valve. The upper end of a valve body of the anti-swing valve is provided with a seal screw plug; four stages of valve body matching inner holes are arranged in the valve body for matching mounting of a control piston, a control valve core and the valve body; the control valve core is arranged in the valve body to form a valve core damping chamber; one end of a valve core reset spring is pressed on the control valve core, and the other end of the valve core reset spring is pressed in a system valve block; a plunger is arranged in the control piston; when external acting force exists, the control piston moves up and down in the valve body, and a piston pressure equalizing passage is formed in the matching mounting space between the control piston and the valve body; the piston reset spring sleeves the control piston; when a valve body sealing end face of the valve body is abutted against a mounting and positioning sealing surface of the system valve block, a valve core sealing loop line of the control valve core is in linear contact seal with a piston sealing conical surface of the control piston; the control valve and a piston steel ball chamber formed in the control piston form a local chamber for mounting a steel ball; the valve body is provided with an oil hole A and an oil hole B and can realize bidirectional unloading; the load produced due to inertia is quickly responded and unloaded and quick sealing is realized.
Description
Technical field
The present invention relates to engineering machinery antiswing device technical field, particularly relate to the anti-sway valve of a kind of screw thread inserting type.
Background technique
Modern project equipment plays key effect in construction, especially excavator and rotating erecting equipment, but excavator or rotating erecting equipment are when rotated, because effect of inertia easily causes resilience to swing, cause excavator or rotating erecting equipment not to locate in time, transmission part also may be caused to damage simultaneously; And because wire rope overlap causes the unexpected tenesmus of weight in lifting process in rotating erecting equipment, great impact is caused to system, the accident of therefore damaging motor happens occasionally, and based on the problem in practical application, needs to eliminate the impact of applied external force on system in time in system.
Summary of the invention
Technical problem solved by the invention is to provide a kind of screw thread inserting type anti-sway valve, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
The anti-sway valve of screw thread inserting type, comprise valve body, wherein, valve body upper end is provided with sealing plug, be provided with level Four valve body in valve body and coordinate endoporus, plunger is installed on by the cooperation of plunger cooperation cylindrical the piston arranged in control piston and coordinates in endoporus, and plunger is positioned at below sealing plug, without under the normality of external action, plunger at one end is pressed on the piston supporting plane of control piston by plunger rides face, the other end is pressed in the plug screw pressure-bearing plane of sealing plug by plunger rides face, control piston coordinates cylindrical to coordinate inner hole to install with the two-stage valve body arranged in valve body by the two-stage piston that it is arranged, when there being external hydraulic active force, control piston moves up and down in valve body, and coordinate clipping room to form piston balance pressure passage at control piston with valve body, piston reset spring is set on control piston, and through valve body transition inner chamber, its one end withstands on the valve body pressure-bearing end face of setting in valve body, the other end is pressed in by pressure regulation packing ring and is arranged on the piston pressure-bearing surface of control piston, by the thickness of adjustment pressure regulation packing ring, to change the precompressed of piston reset spring, sealing plug, by plunger jack-up control piston, makes piston reset spring be in its pre-compressed state by control piston by pressure regulation packing ring simultaneously, and control spool by it arrange two-stage spool coordinate cylindrical coordinate inner hole to install with the other two-stage valve body arranged in valve body, and spool damping cavity volume is formed after control spool loads valve body, valve core reseting spring one end is pressed on the spool pressure-bearing surface that controls spool is arranged, the other end is pressed on the end face of setting in system valve block, and be in its pre-compressed state, when the overall valve body installation external thread rotary by valve body is arranged of anti-sway valve attaches together into system valve block, the valve seal end face that valve body is arranged withstands on the installation location sealing face of system valve block, now control spool by the piston seal conical surface line contact sealing that arranges on the seal spool loop wire of setting it on and control piston, and form local cavity volume with the piston steel ball cavity volume that arranges on control piston, in the cavity volume of local, steel ball is installed, in addition, valve body is after loading system valve block, the valve body damping cylindrical that valve body is arranged and system valve block inwall form spool damp channel, the valve body damping hole that spool damping cavity volume is arranged by side is communicated with spool damp channel, spool damp channel is communicated with hydraulic fluid port A, coordinate the valve body installed to coordinate endoporus and valve body transition inner chamber to balance oil duct by valve body with control piston simultaneously, valve body drain path is communicated with hydraulic fluid port B, and the passage that valve body draining cavity volume is formed by valve body drain path and valve body balance oil duct is communicated with hydraulic fluid port B, to realize two-way off-load, timely elimination applied external force is on the impact of system.
In the present invention, the cylindrical root transition position of piston pressure-bearing surface and control piston is provided with piston grinding undercut, exchanges pressure pad circle produce interference to prevent transition position.
In the present invention, the level Four valve body arranged in valve body coordinates endoporus, that valve body one-level coordinates endoporus, valve body secondary to coordinate endoporus, valve body graduation three to close endoporus and valve body level Four coordinates endoporus respectively, wherein, control piston being provided with piston one-level coordinates cylindrical to coordinate cylindrical with piston secondary, its one end is closed inner hole by piston one-level cooperation cylindrical and valve body graduation three and is installed, and the other end coordinates cylindrical to coordinate inner hole to install with valve body level Four by piston secondary; And control spool is provided with spool one-level and coordinate cylindrical to coordinate cylindrical with spool secondary, its one end coordinates cylindrical to coordinate inner hole to install with valve body one-level by spool secondary, and the other end coordinates cylindrical to coordinate inner hole to install with valve body secondary by spool one-level.
In the present invention, spool one-level coordinates the outside of cylindrical to prolong axially uniformly to be provided with spool balancing slit.
In the present invention, piston secondary coordinates symmetrical milling on cylindrical to have passage milling plane, is convenient to running of hydraulic power oil.
In the present invention, valve body is provided with sealing conical surface of valve body inside upper end, the O RunddichtringO that sealing plug is set with and sealing conical surface of valve body gluing, sealing.
In the present invention, valve body is set with combination seal, for the sealing of valve body and system valve block.
In the present invention, control spool is provided with spool one-level oil duct, spool secondary oil duct and spool V-type oil duct.
The concrete steps that the anti-sway valve of screw thread inserting type realizes off-load and reverse operation are as follows:
When hydraulic fluid port A oil-feed, a hydraulic oil part enters spool damping cavity volume through spool damp channel and valve body damping hole, another part is through spool one-level oil duct, spool secondary oil duct, piston steel ball cavity volume and piston oil duct enter in the sealed volume that formed by the plunger rides face of piston supporting plane and plunger bottom, and coordinate the valve body installed to coordinate endoporus and valve body transition inner chamber to balance oil duct by valve body with control piston, valve body drain path is communicated with hydraulic fluid port B, and valve body draining cavity volume is by valve body drain path, the passage that valve body balance oil duct is formed is communicated with hydraulic fluid port B, to keep the pressure balance of inner chamber and hydraulic fluid port B everywhere, when the input pressure power acted in respective area of hydraulic fluid port A is less than the pretightening force of piston reset spring, anti-sway valve keeps original state, when the input pressure power acted in respective area of hydraulic fluid port A is greater than the pretightening force of piston reset spring, it is descending that control piston compression piston Returnning spring also promotes to control spool compression valve core Returnning spring, when hydraulic fluid port A pressure is enough large, controlling spool will be crushed on the end face of valve body, simultaneously in the moment that hydraulic fluid port A pressure reduces, control piston resets rapidly under the effect of piston reset spring, and control spool due to the effect of valve body damping hole, reset slowly, seal spool loop wire and the piston seal conical surface is caused to disengage instantaneously, hydraulic fluid port A and hydraulic fluid port B is connected, now hydraulic fluid port A, hydraulic fluid port B pressure balance, hydraulic oil in the process in spool damping cavity volume is through valve body damping hole, spool damp channel and spool V-type oil duct get back to hydraulic fluid port A, and under the effect of valve core reseting spring, the seal spool loop wire controlled on spool recovers the contact with the piston seal conical surface, original state got back to by anti-sway valve, when hydraulic fluid port B oil-feed, when the input pressure power acted in respective area of hydraulic fluid port B is greater than the pretightening force of piston reset spring, it is descending that control piston compression piston Returnning spring also promotes to control spool compression valve core Returnning spring, reset rapidly under hydraulic fluid port B pressure reduces the effect of time control piston at piston reset spring, and control spool due to the effect of valve body damping hole, reset slowly, seal spool loop wire and the piston seal conical surface is caused to disengage instantaneously, by hydraulic fluid port A and the of short duration connection of hydraulic fluid port B, hydraulic fluid port B pressure oil is filled with in piston steel ball cavity volume instantaneously, promoting steel ball is pressed on the seal spool conical surface, and then close the connection of hydraulic fluid port B and hydraulic fluid port A, until when the hydraulic fluid port B pressure power acted in respective area is reduced to below the pretightening force of valve core reseting spring, control spool valve core reseting spring effect lower valve core sealing loop wire and the piston seal conical surface resume contacts, original state got back to by anti-sway valve, stopping pump oil to performing components and parts instant response in system, laying down the reaction loads that operate outside part produces because of inertia, thus eliminating the improper running of operate outside part, to eliminate the impact that improper running thus causes.
Beneficial effect: in the present invention, valve body adopts thread cartridge mode, compact structure, be convenient to loading system, when systems pumps oil drives to execution components and parts, anti-sway valve zero is revealed, system stops pump oil to when performing components and parts, anti-sway valve can respond rapidly the reaction loads laid down operate outside part and produce because of inertia, thus eliminate the improper running of operate outside part, to eliminate the impact that improper running thus causes, response characteristic is good, and system leak amount is little, can quick-sealing during acting in opposition, not influential system work.
Accompanying drawing explanation
Fig. 1 is the loading system erection drawing of preferred embodiment of the present invention.
Fig. 2 is the assembling plan view of preferred embodiment of the present invention.
Fig. 3 is the main sectional view of control piston in preferred embodiment of the present invention.
Fig. 4 is the control piston plan view in preferred embodiment of the present invention.
Fig. 5 is the piston structure schematic diagram in preferred embodiment of the present invention.
Fig. 6 is the main sectional view of control spool in preferred embodiment of the present invention.
Fig. 7 is the control spool left view in preferred embodiment of the present invention.
Fig. 8 is the control spool plan view in preferred embodiment of the present invention.
Fig. 9 is the main sectional view of valve body in preferred embodiment of the present invention.
Figure 10 is the valve body plan view in preferred embodiment of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
The anti-sway valve of screw thread inserting type see Fig. 1 ~ Figure 10, comprises sealing plug 1, plunger 2, plunger rides face 2-1, plunger balancing slit 2-2, plunger coordinates cylindrical 2-3, valve body 3, valve body outer-hexagonal 3-1, valve body balance oil duct 3-2, valve body fitted seal cylindrical 3-3, valve body drain path 3-4, valve seal end face 3-5, valve body damping cylindrical 3-6, valve body one-level coordinates endoporus 3-7, valve body damping hole 3-8, valve body secondary coordinates endoporus 3-9, valve body draining cavity volume 3-10, valve body installs outside thread 3-11, valve body graduation three closes endoporus 3-12, valve body pressure-bearing end face 3-13, valve body transition inner chamber 3-14, valve body level Four coordinates endoporus 3-15, sealing conical surface of valve body 3-16, valve body connects internal thread 3-17, control piston 4, passage milling plane 4-1, piston coordinates endoporus 4-2, piston grinding undercut 4-3, piston supporting plane 4-4, piston one-level coordinates cylindrical 4-5, piston seal conical surface 4-6, piston steel ball cavity volume 4-7, piston oil duct 4-8, piston pressure-bearing surface 4-9, piston secondary coordinates cylindrical 4-10, steel ball 5, control spool 6, spool V-type oil duct 6-1, spool one-level oil duct 6-2, spool pressure-bearing surface 6-3, spool secondary oil duct 6-4, spool one-level coordinates cylindrical 6-5, seal spool conical surface 6-6, seal spool loop wire 6-7, spool balancing slit 6-8, spool secondary coordinates cylindrical 6-9, valve core reseting spring 7, combination seal 8, piston reset spring 9, pressure regulation packing ring 10, O RunddichtringO 11, spool damping cavity volume 12, plug screw pressure-bearing plane 13, spool damp channel 14, piston balance pressure passage 15, hydraulic fluid port A, hydraulic fluid port B and installation location sealing face X.
In the present embodiment, control piston 4 one end coordinates cylindrical 4-5 and the interior valve body graduation three arranged of valve body 3 to close endoporus 3-12 by piston one-level and coordinates and install, simultaneously, control piston 4 the other end coordinates cylindrical 4-10 to coordinate endoporus 3-15 to coordinate with the interior valve body level Four arranged of valve body 3 by piston secondary to install, when there being external hydraulic active force, control piston 4 moves up and down in valve body 3, piston reset spring 9 is set on control piston 4, and withstand on the valve body pressure-bearing end face 3-13 of setting in valve body 3 through valve body transition inner chamber 3-14 one end, the other end acts on the piston pressure-bearing surface 4-9 of control piston 4 setting by pressure regulation packing ring 10, by the thickness of adjustment pressure regulation packing ring 10, to change the precompressed of piston reset spring 9, the cylindrical root transition position of piston pressure-bearing surface 4-9 and control piston 4 is provided with piston grinding undercut 4-3, prevent transition position from exchanging pressure pad circle 10 and produce interference, plunger 2 coordinates in endoporus 4-2 by the piston that plunger coordinates cylindrical 2-3 cooperation to be installed on setting in control piston 4, and coordinate the outside of cylindrical 2-3 to prolong at plunger to be axially uniformly provided with plunger balancing slit 2-2, without under the normality of external action, one end of plunger 2 acts on piston supporting plane 4-4 by plunger rides face 2-1, the other end acts in the plug screw pressure-bearing plane 13 of setting on sealing plug 1 by plunger rides face 2-1, sealing plug 1 is set with O RunddichtringO 11, and be connected internal thread 3-17 by the valve body arranged in outside thread and valve body 3 and screw locking, and O RunddichtringO 11 and sealing conical surface of valve body 3-16 gluing, sealing, sealing plug 1 is by plunger 2 jack-up control piston 4, and make piston reset spring 9 be in its pre-compressed state by control piston 4 by pressure regulation packing ring 10, piston secondary coordinates symmetrical milling on cylindrical 4-10 to have passage milling plane 4-1, and after piston secondary coordinates cylindrical 4-10 to coordinate endoporus 3-15 to coordinate with valve body level Four, form piston balance pressure passage 15, control spool 6 one end to coordinate cylindrical 6-9 to coordinate endoporus 3-7 to coordinate with the interior valve body one-level arranged of valve body 3 by spool secondary to install, simultaneously, the other end coordinates cylindrical 6-5 to coordinate endoporus 3-9 to coordinate with the interior valve body secondary arranged of valve body 3 by spool one-level to install, and coordinate the outside of cylindrical 6-5 to prolong in spool one-level to be axially uniformly provided with spool balancing slit 6-8, valve core reseting spring 7 one end acts on the spool pressure-bearing surface 6-3 of setting on control spool 6, when the overall valve body installation outside thread 3-11 by valve body 3 is arranged of anti-sway valve screws loading system valve block, when valve seal end face 3-5 pushes up on installation location sealing face X, valve core reseting spring 7 the other end acts on the end face of setting in system valve block, and be in its pre-compressed state, now control spool 6 is contacted with the piston seal conical surface 4-6 that control piston 4 is arranged by the seal spool loop wire 6-7 that it is arranged and seals, local cavity volume is formed with the piston steel ball cavity volume 4-7 that control piston 4 is arranged, steel ball 5 is installed in this cavity volume, separately, control spool 6 and form spool damping cavity volume 12 after loading valve body 3, valve body 3 valve body damping cylindrical 3-6 and system valve block inwall when loading system valve block form spool damp channel 14, combination seal 8 is set with on valve body 3, when anti-sway valve entirety loads system valve block, the valve body fitted seal cylindrical 3-3 that valve body 3 is arranged coordinates with system valve block and installs, and sealed by combination seal 8 and system valve block, and valve body outer-hexagonal 3-1 is convenient to the loading locking of valve entirety.
In the present embodiment, to realize the concrete steps of off-load and reverse operation as follows for the anti-sway valve of screw thread inserting type:
When hydraulic fluid port A oil-feed, a part enters spool damping cavity volume 12 through spool damp channel 14 and valve body damping hole 3-8, another part is through spool one-level oil duct 6-2, spool secondary oil duct 6-4, piston steel ball cavity volume 4-7 and piston oil duct 4-8 enters in the sealed volume that formed by the plunger rides face 2-1 of piston supporting plane 4-4 and plunger 2 bottom, valve body level Four in valve body 3 coordinates endoporus 3-15 to be connected with hydraulic fluid port B by valve body balance oil duct 3-2 and valve body drain path 3-4 with valve body transition inner chamber 3-14, and the passage that valve body draining cavity volume 3-10 is formed by valve body drain path 3-4 and valve body balance oil duct 3-2 is connected with hydraulic fluid port B, to keep the pressure balance of inner chamber and hydraulic fluid port B everywhere, when the input pressure power acted in respective area of hydraulic fluid port A is less than the pretightening force of piston reset spring 9, anti-sway valve keeps original state, when the input pressure power acted in respective area of hydraulic fluid port A is greater than the pretightening force of piston reset spring 9, control piston 4 compression piston Returnning spring 9 also promotes to control spool 6 to compress valve core reseting spring 7 descending, when hydraulic fluid port A pressure is enough large, controlling spool 6 will be crushed on the end face of valve body, the moment that hydraulic fluid port A pressure reduces, control piston 4 resets rapidly under the effect of piston reset spring 9, and control the effect of spool 6 due to valve body damping hole 3-8, reset slowly, seal spool loop wire 6-7 and piston seal conical surface 4-6 is caused to disengage instantaneously, hydraulic fluid port A and hydraulic fluid port B is connected, now hydraulic fluid port A, hydraulic fluid port B pressure balance, oil in corresponding process in spool damping cavity volume 12 is through valve body damping hole 3-8, spool damp channel 14 and spool V-type oil duct 6-1 get back to hydraulic fluid port A, under the effect of valve core reseting spring 7, seal spool loop wire 6-7 recovery on control spool 6 contacts with piston seal conical surface 4-6's, original state got back to by valve, when hydraulic fluid port B oil-feed, when the input pressure power acted in respective area of hydraulic fluid port B is greater than the pretightening force of piston reset spring 9, control piston 4 compression piston Returnning spring 9 also promotes to control spool 6 to compress valve core reseting spring 7 descending, reset rapidly under the effect of piston reset spring 9 when hydraulic fluid port B pressure reduces time control piston 4, and control the effect of spool 6 due to valve body damping hole 3-8, reset slowly, seal spool loop wire 6-7 and piston seal conical surface 4-6 is caused to disengage instantaneously, by hydraulic fluid port A and the of short duration connection of hydraulic fluid port B, hydraulic fluid port B pressure oil is filled with in piston steel ball cavity volume 4-7 instantaneously, promoting steel ball 5 is pressed on seal spool conical surface 6-6, close the connection of hydraulic fluid port B and hydraulic fluid port A instantaneously, until when the hydraulic fluid port B pressure power acted in respective area is reduced to below the pretightening force of valve core reseting spring 7, control spool 6 to resume contacts at the effect lower valve core sealing loop wire 6-7 and piston seal conical surface 4-6 of valve core reseting spring 7, original state got back to by anti-sway valve.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (9)
1. the anti-sway valve of screw thread inserting type, comprise valve body, it is characterized in that, valve body upper end is provided with sealing plug, be provided with level Four valve body in valve body and coordinate endoporus, plunger is installed on by the cooperation of plunger cooperation cylindrical the piston arranged in control piston and coordinates in endoporus, and plunger is positioned at below sealing plug, without under the normality of external action, plunger at one end is pressed on the piston supporting plane of control piston by plunger rides face, the other end is pressed in the plug screw pressure-bearing plane of sealing plug by plunger rides face, control piston coordinates cylindrical to coordinate inner hole to install with the two-stage valve body arranged in valve body by the two-stage piston that it is arranged, when there being external hydraulic active force, control piston moves up and down in valve body, and coordinate clipping room to form piston balance pressure passage at control piston with valve body, piston reset spring is set on control piston, and through valve body transition inner chamber, its one end withstands on the valve body pressure-bearing end face of setting in valve body, the other end is pressed in by pressure regulation packing ring and is arranged on the piston pressure-bearing surface of control piston, sealing plug, by plunger jack-up control piston, makes piston reset spring be in its pre-compressed state by control piston by pressure regulation packing ring simultaneously, and control spool by it arrange two-stage spool coordinate cylindrical coordinate inner hole to install with the other two-stage valve body arranged in valve body, and spool damping cavity volume is formed after control spool loads valve body, valve core reseting spring one end is pressed on the spool pressure-bearing surface that controls spool is arranged, the other end is pressed on the end face of setting in system valve block, and be in its pre-compressed state, when the overall valve body installation external thread rotary by valve body is arranged of anti-sway valve attaches together into system valve block, the valve seal end face that valve body is arranged withstands on the installation location sealing face of system valve block, now control spool by the piston seal conical surface line contact sealing that arranges on the seal spool loop wire of setting it on and control piston, and form local cavity volume with the piston steel ball cavity volume that arranges on control piston, in the cavity volume of local, steel ball is installed, in addition, valve body is after loading system valve block, the valve body damping cylindrical that valve body is arranged and system valve block inwall form spool damp channel, the valve body damping hole that spool damping cavity volume is arranged by side is communicated with spool damp channel, spool damp channel is communicated with hydraulic fluid port A, coordinate the valve body installed to coordinate with control piston endoporus balances oil duct with valve body transition inner chamber by valve body, valve body drain path is communicated with hydraulic fluid port B simultaneously, and the passage that valve body draining cavity volume is formed by valve body drain path and valve body balance oil duct is communicated with hydraulic fluid port B.
2. the anti-sway valve of screw thread inserting type according to claim 1, is characterized in that, the cylindrical root transition position of piston pressure-bearing surface and control piston is provided with piston grinding undercut.
3. the anti-sway valve of screw thread inserting type according to claim 1, it is characterized in that, the level Four valve body arranged in valve body coordinates endoporus, that valve body one-level coordinates endoporus, valve body secondary to coordinate endoporus, valve body graduation three to close endoporus and valve body level Four coordinates endoporus respectively, wherein, control piston being provided with piston one-level coordinates cylindrical to coordinate cylindrical with piston secondary, its one end is closed inner hole by piston one-level cooperation cylindrical and valve body graduation three and is installed, and the other end coordinates cylindrical to coordinate inner hole to install with valve body level Four by piston secondary; And control spool is provided with spool one-level and coordinate cylindrical to coordinate cylindrical with spool secondary, its one end coordinates cylindrical to coordinate inner hole to install with valve body one-level by spool secondary, and the other end coordinates cylindrical to coordinate inner hole to install with valve body secondary by spool one-level.
4. the anti-sway valve of screw thread inserting type according to claim 3, is characterized in that, spool one-level coordinates the outside of cylindrical to prolong axially uniformly to be provided with spool balancing slit.
5. the anti-sway valve of screw thread inserting type according to claim 3, is characterized in that, piston secondary coordinates symmetrical milling on cylindrical to have passage milling plane.
6. the anti-sway valve of screw thread inserting type according to claim 1, is characterized in that, valve body is provided with sealing conical surface of valve body inside upper end.
7. the anti-sway valve of screw thread inserting type according to claim 1, is characterized in that, valve body is set with combination seal.
8. the anti-sway valve of screw thread inserting type according to claim 1, is characterized in that, controls spool is provided with spool one-level oil duct, spool secondary oil duct and spool V-type oil duct.
9. the anti-sway valve of the screw thread inserting type according to any one of claim 1 ~ 8, is characterized in that, the concrete steps that the anti-sway valve of screw thread inserting type realizes off-load and reverse operation are as follows:
When hydraulic fluid port A oil-feed, a hydraulic oil part enters spool damping cavity volume through spool damp channel and valve body damping hole, another part is through spool one-level oil duct, spool secondary oil duct, piston steel ball cavity volume and piston oil duct enter in the sealed volume that formed by the plunger rides face of piston supporting plane and plunger bottom, and coordinate the valve body installed to coordinate endoporus and valve body transition inner chamber to balance oil duct by valve body with control piston, valve body drain path is communicated with hydraulic fluid port B, and valve body draining cavity volume is by valve body drain path, the passage that valve body balance oil duct is formed is communicated with hydraulic fluid port B, when the input pressure power acted in respective area of hydraulic fluid port A is less than the pretightening force of piston reset spring, anti-sway valve keeps original state, when the input pressure power acted in respective area of hydraulic fluid port A is greater than the pretightening force of piston reset spring, it is descending that control piston compression piston Returnning spring also promotes to control spool compression valve core Returnning spring, when hydraulic fluid port A pressure is enough large, controlling spool will be crushed on the end face of valve body, simultaneously in the moment that hydraulic fluid port A pressure reduces, control piston resets rapidly under the effect of piston reset spring, and control spool due to the effect of valve body damping hole, reset slowly, seal spool loop wire and the piston seal conical surface is caused to disengage instantaneously, hydraulic fluid port A and hydraulic fluid port B is connected, now hydraulic fluid port A, hydraulic fluid port B pressure balance, hydraulic oil in the process in spool damping cavity volume is through valve body damping hole, spool damp channel and spool V-type oil duct get back to hydraulic fluid port A, and under the effect of valve core reseting spring, the seal spool loop wire controlled on spool recovers the contact with the piston seal conical surface, original state got back to by anti-sway valve, when hydraulic fluid port B oil-feed, when the input pressure power acted in respective area of hydraulic fluid port B is greater than the pretightening force of piston reset spring, it is descending that control piston compression piston Returnning spring also promotes to control spool compression valve core Returnning spring, reset rapidly under hydraulic fluid port B pressure reduces the effect of time control piston at piston reset spring, and control spool due to the effect of valve body damping hole, reset slowly, seal spool loop wire and the piston seal conical surface is caused to disengage instantaneously, by hydraulic fluid port A and the of short duration connection of hydraulic fluid port B, hydraulic fluid port B pressure oil is filled with in piston steel ball cavity volume instantaneously, promoting steel ball is pressed on the seal spool conical surface, and then close the connection of hydraulic fluid port B and hydraulic fluid port A, until when the hydraulic fluid port B pressure power acted in respective area is reduced to below the pretightening force of valve core reseting spring, control spool valve core reseting spring effect lower valve core sealing loop wire and the piston seal conical surface resume contacts, original state got back to by anti-sway valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047490.5A CN104595270A (en) | 2015-01-29 | 2015-01-29 | Threaded cartridge type anti-swing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047490.5A CN104595270A (en) | 2015-01-29 | 2015-01-29 | Threaded cartridge type anti-swing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104595270A true CN104595270A (en) | 2015-05-06 |
Family
ID=53121242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510047490.5A Pending CN104595270A (en) | 2015-01-29 | 2015-01-29 | Threaded cartridge type anti-swing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909585A (en) * | 2016-03-03 | 2016-08-31 | 杭州力龙液压有限公司 | Anti-swing valve |
| CN110439793A (en) * | 2019-08-13 | 2019-11-12 | 刘维东 | A kind of pump uses pressure controller |
-
2015
- 2015-01-29 CN CN201510047490.5A patent/CN104595270A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909585A (en) * | 2016-03-03 | 2016-08-31 | 杭州力龙液压有限公司 | Anti-swing valve |
| CN110439793A (en) * | 2019-08-13 | 2019-11-12 | 刘维东 | A kind of pump uses pressure controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103277355A (en) | Elevating platform fire truck and hydraulic leveling system thereof | |
| CN105822615A (en) | Hydraulic control system of engineering machinery amplitude change mechanism | |
| CN104595271A (en) | Anti-swing control method suitable for bidirectional hydraulic loop | |
| CN204677215U (en) | A kind of liquids double-rows pilot-operated type high-flow safety valve | |
| CN201232784Y (en) | Load holding valve | |
| CN104595270A (en) | Threaded cartridge type anti-swing valve | |
| CN102128284A (en) | Pressure-reduction type balance hydraulic lock | |
| CN109026889B (en) | Buffer overflow valve | |
| CN102777438A (en) | Multifunctional integrated valve bank of hydraulic motor | |
| CN204458609U (en) | The anti-sway valve of screw thread inserting type | |
| CN205559385U (en) | Engineering machine tool amplitude changing device's hydraulic control system | |
| CN106870499B (en) | A kind of damping buffering valve | |
| CN102913382B (en) | A kind of High-reliability hydraulic motor | |
| CN102878141A (en) | Combined type rotary motor reversion-preventing buffering balanced valve | |
| CN103644338B (en) | Pressure regulator valve and there is the equilibrium valve assembly of this pressure regulator valve | |
| CN102454648A (en) | Two-stage pressure revolution cushion valve | |
| CN102261354A (en) | Crane hydraulic system and hydraulic balance valve thereof | |
| CN101900148A (en) | Short-stroke pressure-maintaining high-pressure heavy hydraulic cylinder with high-pressure proximity switches | |
| CN106051185A (en) | Balance valve internally provided with buffering valve | |
| CN101354080B (en) | Cut-off type power-off reset electric valve | |
| CN204254229U (en) | A kind of emergent fuel feeding hydraulic station for large-sized grinder | |
| CN108278234B (en) | Plug-in rotary buffer valve | |
| CN110762075A (en) | Steering system and method based on improved hydraulic steering bypass priority valve | |
| CN202023780U (en) | Pressure-reducing type balance hydraulic lock | |
| CN109026888B (en) | Rotary buffer valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |