CN105351274A - Energy consumer and mechanical switch - Google Patents
Energy consumer and mechanical switch Download PDFInfo
- Publication number
- CN105351274A CN105351274A CN201510934284.6A CN201510934284A CN105351274A CN 105351274 A CN105351274 A CN 105351274A CN 201510934284 A CN201510934284 A CN 201510934284A CN 105351274 A CN105351274 A CN 105351274A
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- Prior art keywords
- valve core
- pressure
- cylinder body
- piston
- cylinder
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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
- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an energy consumer and a mechanical switch. The energy consumer comprises a cylinder, a piston, a piston rod, an adjusting valve, a channel and a pressure relieving device, wherein the cylinder comprises a first end cover, a cylinder barrel and a second end cover; the piston rod penetrates through the first end cover, and is fixed together with the piston in the cylinder; the cylinder is divided into a first cavity and a second cavity at the side with the first end cover by the piston; one end part of a pressure relieving valve core positioned in the pressure relieving device assembled on the cylinder extends into the first cavity; the channel is communicated with the pressure relieving device and the second cavity; and the adjusting valve is arranged on the channel. The mechanical switch comprises a single-pole switch and the energy consumer axially connected to each other; when the switch is switched on, the energy consumer relieves the damping at the tail section of the travel thereof, and the switching-on bounce, caused by the damping force, of a moving contact is reduced; the damping relieving strength is adjusted by adjusting the openness of the adjusting valve, so that moving parts of the energy consumer and the mechanical switch are in synergistic effect to optimize the switching-on performance; and the pressure relieving device is arranged on the cylinder of the energy consumer, and is convenient for installation, maintenance and replacement of the pressure relieving valve core.
Description
Technical field
The present invention relates to a kind of energy comsuming device, particularly relate to a kind of Cheng Qian section of being expert at and produce the adjustable energy comsuming device of power that damping stroke latter end removes damping and damping removes, and adopt the mechanical switch of described energy comsuming device, belong to field of switch equipment.
Background technique
At present higher new demand is constantly proposed to the performance of the divide-shut brake of high and low pressure mechanical switch, require that its branch wire time is shorter, do not produce arcing.This must make the moving contact of the vacuum bubbles of the core component as high and low pressure mechanical switch point, close a floodgate time there is higher speed, and close a floodgate time moving contact do not produce spring, not electric arc of discharge, does not produce bounce-back after separating brake, arcing of not discharging.During combined floodgate, the moving contact of the high-speed motion of vacuum bubbles and the collision of its fixed contact, it is close to elastic impact, now moving contact by with before former collision time velocity reversal's motion, moving contact bounces, and has caused switch to close when closing a floodgate and separately, cause larger electrical impact, generation is shoved.During separating brake, it is still higher that the moving contact of vacuum bubbles moves to separating brake limit position hourly velocity, and moving contact and bounding means collide and produce and rebound, and when the distance between moving contact and fixed contact is too small, produces electric discharge, namely arcing occurs.The harm that causes with arcing switching devices and even whole electrical network of shoving is very large.
At present, the measure that the closing rebound problem for the moving contact of above-mentioned mechanical switch is generally taked increases energy storage apparatus, in order to store the energy of moving contact collision reaction, stops its closing rebound; Energy comsuming device is increased to the many employings of the separating brake bounce problem of moving contact, in order to store the energy of moving contact, rebounds after stoping its separating brake.These measures make the divide-shut brake dynamic performance of high and low pressure mechanical switch be improved significantly.But the damping force that energy comsuming device produces can promote the reversing motion of moving contact, moving contact often can be made to produce closing rebound when closing a floodgate.Therefore, need the energy comsuming device that a kind of Cheng Qian section of being expert at of exploitation produces the adjustable easy care of power that damping stroke latter end removes damping and damping is removed badly, and develop a kind of mechanical switch of built-in described energy comsuming device, energy comsuming device and the built-in moving element synergy of mechanical switch, improve combined floodgate performance.
Summary of the invention
The object of the invention is for problems of the prior art, provide a kind of Cheng Qian section of being expert to produce the energy comsuming device of the adjustable easy care of power that damping stroke latter end removes damping and damping is removed.The cylinder body of this energy comsuming device assembles pressure relief device, the piston of energy comsuming device inside Cheng Qian section compression damping medium of being expert at produces damping, at stroke latter end, the pressure releasing valve core of piston slap pressure relief device, trigger energy comsuming device pressure release and remove damping, the moving element be connected with energy comsuming device is decelerated to avoid the damping force of energy comsuming device to promote, and described moving element rebounds at stroke destination county.The aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, makes energy comsuming device and coupled moving element synergy, to optimize the dynamic performance of moving element further.Described pressure relief device is assemblied on the cylinder body of energy comsuming device, is easy to install, safeguard.
Technological scheme of the present invention is to provide a kind of energy comsuming device, comprise cylinder body 1, piston 21 and piston rod 22, described cylinder body 1 comprises the first fixing successively end cap 12, cylinder barrel 11 and the second end cap 13, one end of described piston rod 22 is run through the first end cap 12 and is extend into cylinder body 1 inside, fix with the described piston 21 be arranged in cylinder body 1, described piston 21 is separated into the first chamber being positioned at the first end cap 12 side and the second chamber being positioned at the second end cap 13 side the internal chamber of cylinder body 1, its designing points is: also comprise the pressure relief device 3 be assemblied on described cylinder body 1, the valve core rod portion 312 of the pressure releasing valve core 31 that described pressure relief device 3 is built-in extend in cylinder body 1, be communicated with by passage 4 between described pressure relief device 3 and the second chamber, described passage 4 is arranged and is used for the modulating valve 6 that damping adjusting removes power.The internal chamber of described cylinder body 1 fills damping gas or damping oil.
During use, the cylinder body of energy comsuming device of the present invention is fixed, piston rod is fixedly connected with needing the moving element cushioned.Moving element drives piston from the second end cap side direction first end cap lateral movement by piston rod, and the resisting medium in piston compression cylinder body produces damping force, and damping force promotes that moving element slows down.At stroke latter end, the pressure releasing valve core of the pressure relief device on piston slap energy comsuming device, triggers energy comsuming device pressure release and removes damping, and the speed that moving element is maintained when removing damping is moved, and moving element is in the bounce-back of stroke destination county, improves the dynamic performance of moving element to avoid damping force to promote.The aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, makes energy comsuming device and coupled moving element synergy, optimizes the dynamic performance of moving element further.
The present invention also has following preferred technological scheme further.
Further, described pressure relief device 3 comprises the pressure-releasing chamber 35 being made up of open-topped diapire and sidewall be arranged on described cylinder body 1, also comprise the open-topped being built in the first pressing plate 33, Returnning spring 32, pressure releasing valve core 31, valve core case 36, first pressing plate 33 and pressure-releasing chamber 35 that pressure-releasing chamber 35 is also fitted successively to fix; Described valve core case 36 is arranged on the inside bottom wall of pressure-releasing chamber 35, the diapire of pressure-releasing chamber 35 is provided with the valve seat orifice 37 extended along valve core case 36 direction of axis line, the valve core rod portion 312 that described pressure releasing valve core 31 comprises spool portion 311 and extends along spool portion 311 direction of axis line, described spool portion 311 and valve core case 36 are sealed and matched, and valve core rod portion 312 runs through and protrudes from valve seat orifice 37.
Further, the outer surface in the valve core rod portion 312 of described pressure releasing valve core 31 is provided with the diversion groove 3121 extended along its direction of axis line.
Further, described first end cap 12 and cylinder barrel 11 one-body molded.
Further, described pressure relief device 3 is assemblied on the first end cap 12 of described cylinder body 1.
Further, described pressure relief device 3 is assemblied on the cylinder barrel wall of described cylinder barrel 11, is positioned at the first end cap 12 side, and valve core rod portion 312 part extend in cylinder body 1 of described pressure releasing valve core 31 is spherical crown shape, inclined plane shape or cam-like.
Further, described passage 4 comprise be built in described first end cap 12 and seal with pressure-releasing chamber 35 first passage 41 be communicated with, the second channel 42 of in the cylinder barrel wall being arranged at cylinder barrel 11 or cylinder body 1 outside, be arranged at cylinder barrel 11 cylinder barrel wall in and be positioned at the third channel 43 is communicated with the second cavity seal of the second end cap 13 side, described first passage 41, modulating valve 6, second channel 42 seal with third channel 43 and are communicated with.
Further, described passage 4 comprise be built in cylinder barrel 11 cylinder barrel wall in and and pressure-releasing chamber 35 seal the second channel 42 be communicated with, the cylinder barrel wall being arranged at cylinder barrel 11 interior and be positioned at the third channel 43 be communicated with the second cavity seal of the second end cap 13 side, described second channel 42, modulating valve 6 seal with third channel 43 and are communicated with; Or,
Described passage 4 comprise be fixed on pressure relief device 3 the first pressing plate 33 on and with pressure-releasing chamber 35 seal the first passage 41 be communicated with, the second channel 42 being arranged at cylinder body 1 outside, be arranged at cylinder barrel 11 cylinder barrel wall in and be positioned at the third channel 43 is communicated with the second cavity seal of the second end cap 13 side, described first passage 41, modulating valve 6, second channel 42 seal with third channel 43 and are communicated with.
In use, the cylinder body of energy comsuming device of the present invention is fixed, piston rod is fixedly connected with needing the moving element cushioned.Moving element drives piston from the second end cap side direction first end cap lateral movement by piston rod, the resisting medium in piston compression cylinder body, and produce damping force, damping force strengthens fast with the quickening of piston movement speed, promotes that moving element slows down simultaneously.Store energy by the resisting medium that compresses, resisting medium flows to low voltage side by the damping hole on piston from high pressure side, namely flows to the second chamber from the first chamber, the portion of energy that release stores, and cushions the damping force produced.At stroke latter end, the movement velocity of piston is very high relative to the last stage, and store higher energy by the resisting medium that compresses, the damping force of generation is larger, stronger to the deceleration promoting effect of moving element.The pressure release removed to damping when piston movement triggers stroke place, the pressure releasing valve core of the pressure relief device on piston slap energy comsuming device, resisting medium in cylinder body is flowed out by pressure relief device, the energy that release stores, the damping force of energy comsuming device is removed, eliminate damping force, remove the damping force promoting that moving element slows down, make moving element maintain higher speed and move to stroke end; When moving element moves to stroke end place, the energy stored by the resisting medium in energy comsuming device is eliminated, and damping force is removed, and moving element can not be caused to rebound, and the dynamic performance of fortune parts is moved in favourable raising.The aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, makes energy comsuming device and coupled moving element synergy, optimizes the dynamic performance of moving element further.Described pressure relief device is assemblied on the cylinder body of energy comsuming device, install, safeguard pressure relief device, all do not need to dismantle energy comsuming device, only need the first pressing plate of dismounting pressure relief device, namely can change and there is the pressure releasing valve core that different pressure release triggers stroke (namely having different length valve core rod portion), be convenient to safeguard in routine use.
Another object of the present invention is for problems of the prior art, there is provided a kind of mechanical switch being built-in with above-mentioned energy comsuming device, energy comsuming device and mechanical switch moving element synergy, shorten closing time, reduce closing rebound, improve the divide-shut brake performance of mechanical switch.
Another technological scheme of the present invention is to provide a kind of mechanical switch, comprise above-mentioned energy comsuming device, its designing points is: described mechanical switch also comprises at least one Mono-pole switch 9, described single-pole switch 9 comprises vacuum bubbles 91, insulating cylinder 92, electromagnetic driver 93, and described vacuum bubbles 91, insulating cylinder 92, electromagnetic driver 93 are connected with above-mentioned energy comsuming device 94 axial restraint.
The present invention also has following preferred technological scheme further.
Further, the embedded energy storage apparatus 95 of described insulating cylinder 92, described energy storage apparatus 95 comprises cylinder body 951, piston 952, piston rod 953 and spring 954, described cylinder body 951 comprises and seals fixing top end cover 9511, cylinder barrel 9512 and bottom cover 9513 successively, the top end cover 9511 that described piston rod 953 passes cylinder body 951 extend in cylinder body 951 and also fixes with the piston 952 be arranged in cylinder body 951, piston 952 arranges overflow hole, and spring 954 is arranged between the bottom cover 9513 of cylinder body 951 and piston 952.
Mechanical switch of the present invention and energy comsuming device of the present invention with the use of, energy comsuming device is axially connected with the moving element for divide-shut brake of mechanical switch.The cylinder body of energy comsuming device arranges pressure relief device, and the pressure relief device valve core rod portion be built-in with for triggering pressure release extend into the pressure releasing valve core in described energy comsuming device cylinder body.When being about to close a floodgate, the high speed piston motion that energy comsuming device of the present invention is built-in, the pressure release removed to damping when piston movement triggers stroke place, the i.e. end in the valve core rod portion of pressure releasing valve core, the pressure releasing valve core of piston slap pressure relief device, triggers energy comsuming device pressure release and removes damping, eliminates contrary with moving contact moving direction and to bounce the identical damping force in direction with switch on of moving contact, eliminate the switch on of moving contact spring that damping force promotes, make the closing speed that moving contact keeps higher simultaneously.Like this, closing a floodgate, front energy comsuming device removes damping force, can reduce the moving contact spring of vacuum bubbles during combined floodgate, and described moving contact can be made again to keep more speed to close a floodgate, and closing time is shortened further, improves the combined floodgate performance of mechanical switch.In addition, the aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, making the moving element of energy comsuming device and mechanical switch synergy when closing a floodgate, improving the dynamic performance of mechanical switch, reducing closing rebound further, obtain better combined floodgate performance.Described pressure relief device is assemblied on the cylinder body of energy comsuming device, when installation and maintenance are carried out to pressure relief device, as changed pressure releasing valve core, do not need to disassemble energy comsuming device, energy comsuming device is not even needed to remove from mechanical switch, only need the first pressing plate of dismounting pressure relief device, easy and simple to handle, safeguard more efficient, more convenient.
Beneficial effect
The damping force of energy comsuming device is removed at stroke latter end, can not promote that coupled moving element rebounds, by arranging pressure relief device on energy comsuming device, the piston of energy comsuming device Cheng Qian section compression damping medium of being expert at produces damping, when piston movement is to the pressure release triggering travel point place of stroke latter end, the pressure releasing valve core of piston collisions pressure relief device triggers pressure relief device and carries out pressure release, the damping force of energy comsuming device is removed, speed motion when moving element keeps damping to remove, avoids the damping force of energy comsuming device to cause moving element oppositely to bounce at stroke destination county.
Conveniently install, debug and safeguard pressure relief device, by pressure relief device is arranged on the cylinder body of energy comsuming device, pressure relief device is installed, when safeguarding, as changed, there is the pressure releasing valve core that different pressure release triggers stroke, do not need to disassemble energy comsuming device, even do not need energy comsuming device to remove from the moving element be connected, only need the first pressing plate of dismounting pressure relief device, easy and simple to handle, safeguard more efficient, more convenient.
The power that damping is removed is adjustable, by arranging modulating valve on passage, and the aperture of adjustment modulating valve, control the flow of resisting medium circulation passage, carry out the power that damping adjusting is removed, make energy comsuming device and coupled moving element synergy, optimize the dynamic performance of moving element further.
Improve the combined floodgate performance of mechanical switch, by energy comsuming device of the present invention is axially connected with the moving element for divide-shut brake of mechanical switch, before will closing a floodgate, the pressure releasing valve core of the piston collisions pressure relief device that energy comsuming device is built-in triggers pressure relief device and carries out pressure release, the damping force of energy comsuming device is removed, eliminate contrary with moving contact moving direction and to bounce the identical damping force in direction with switch on of moving contact, eliminate the switch on of moving contact spring that damping force promotes, make the closing speed that moving contact keeps higher, closing time is shortened further simultaneously.In addition, carried out the power of damping adjusting releasing by the aperture adjusting modulating valve, making the moving element of energy comsuming device and mechanical switch synergy when closing a floodgate, improving the dynamic performance of moving element, further reduction closing rebound, the combined floodgate performance of mechanical switch is optimized further.
Accompanying drawing explanation
Fig. 1 pressure relief device is arranged on a kind of structural representation of the energy comsuming device of the present invention on end cap.
Fig. 2 pressure relief device is arranged on the another kind of structural representation of the energy comsuming device of the present invention on end cap.
Fig. 3 pressure relief device is arranged on a kind of structural representation of the energy comsuming device of the present invention on cylinder barrel.
The parts of Fig. 4 pressure relief device decompose enlarged diagram.
The enlarged diagram of Fig. 5 pressure releasing valve core structure.
The structural representation of Fig. 6 mechanical switch of the present invention.
In figure, 1-cylinder body, 2-piston mechanism, 3-pressure relief device, 4-passage, 6-modulating valve, 9-Mono-pole switch, 11-cylinder barrel, 12-first end cap, 13-second end cap, 14-gland, 15-first seal ring, 16-second seal ring, 21-piston, 22-piston rod, 23-damping hole, 24-the 3rd seal ring, 25-the 4th seal ring, 31-pressure releasing valve core, 32-Returnning spring, 33-first pressing plate, 34-the 5th seal ring, 35-pressure-releasing chamber, 36-valve core case, 37-valve seat orifice, 311-spool portion, 312-valve core rod portion, 3121-diversion groove, 91-vacuum bubbles, 92-insulating cylinder, 93-electromagnetic driver, 94-energy comsuming device, 95-energy storage apparatus, 951-cylinder body, 952-piston, 953-piston rod, 954-spring, 9511-top end cover, 9512-cylinder barrel, 9513-bottom cover.
Embodiment
In order to illustrate technological scheme of the present invention and technical purpose, below in conjunction with the drawings and the specific embodiments, the present invention is described further.
Mode of execution 1
A kind of energy comsuming device of the present invention, as shown in Figure 1, comprises cylinder body 1, piston mechanism 2, pressure relief device 3 and passage 4.Described cylinder body 1 comprises the first end cap 12, cylinder barrel 11 and the second end cap 13, and described first end cap 12 sealing is fixed on the top of cylinder barrel 1, further, described first end cap 12 and cylinder barrel 1 one-body molded; Second end cap 13 adopts the bottom being bolted to cylinder barrel 1, and the bottom of the second end cap 13 and cylinder barrel 1 realizes sealing by the first seal ring 15.Described piston mechanism 2 comprises piston 21, piston rod 22.Described piston 21 is arranged on the inside of cylinder body 1, is sealed between the side surface of piston 21 and the internal surface of cylinder barrel 11 by the 4th seal ring 25, and piston 21 can move along the direction of axis line of cylinder body 1 relative to cylinder body 1.Described piston 21 is separated into the first chamber being positioned at end cap 12 side, top first and the second chamber being positioned at end cap 13 side, bottom second the internal chamber of cylinder body 1.Described piston 21 is provided with the damping hole 23 for being communicated with the first chamber and the second chamber, and the area of damping hole 23 is no more than 1% of piston 21 area, and preferably 0.9%.Damping hole is for regulating the damping characteristics of energy comsuming device, and damping hole area is little, and buffer damping is large; Area is large, and buffer damping is little; Need to design the long-pending damping hole of suitable cross-section according to buffering.The underpart of described piston rod 22 is run through the through hole in the middle part of the first end cap 12 and is extend into cylinder body 1 inside, and fixes with piston 21, is sealed between described piston rod 22 and piston 21 by the 3rd seal ring 24; Realize sealing by the step on this through hole, the first seal ring 16, gland 14 between the through hole in the middle part of piston rod 22 and the first end cap 12, piston rod 22 can move along its direction of axis line relative to the through hole in the middle part of the first end cap 12.Described pressure relief device 3 is assemblied on the first end cap 12 of described cylinder body 1, and passage 4 for being communicated with pressure-releasing chamber 35 and second chamber of described pressure relief device 3, and seals secured adjusted valve 6 on passage 4, the power removed in order to damping adjusting.
Wherein, described pressure relief device 3, as shown in Fig. 4 and Fig. 1, comprises pressure-releasing chamber 35, first pressing plate 33, Returnning spring 32, pressure releasing valve core 31 and valve core case 36.Described first pressing plate 33, Returnning spring 32, pressure releasing valve core 31, valve core case 36 are arranged in pressure-releasing chamber 35.Described pressure-releasing chamber 35 is arranged on the first end cap 12, is made up of the chamber of open-topped diapire and sidewall.Valve core case 36 is arranged on the diapire of pressure-releasing chamber 35, and is positioned at the inner side of diapire, is namely positioned at the end side deviated from the first chamber.The diapire of pressure-releasing chamber 35 is provided with the valve seat orifice 37 extended along valve core case 36 direction of axis line, the through pressure-releasing chamber 35 of valve seat orifice 37 and the first chamber.Described pressure releasing valve core 31 comprises successively fixing spool portion 311 and valve core rod portion 312, valve core rod portion 312 from the lower end surface in spool portion 311 along spool portion 311 direction of axis line to downward-extension.Pressure releasing valve core 31 is assemblied in valve core case 36, and valve core rod portion 312 through valve seat orifice 37, and protrudes from valve seat orifice 37, namely protrudes from the lower surface of the first end cap 12, extend into the first chamber, and just relative with the upper-end surface of piston 21.Described spool portion 311 and valve core case 36 are sealed and matched, and the 5th seal ring 34 also can be adopted to realize sealing.The sealing surface that spool portion 311 and valve core case 36 are sealed and matched is the conical surface, also can be plane or sphere.Described first pressing plate 33, Returnning spring 32, pressure releasing valve core 31, valve core case 36 are fitted successively, first pressing plate 33 is fixed on the open-topped place of pressure-releasing chamber 35, adopt the upper-end surface being bolted to the first end cap 12, further, the open-topped place of the first pressing plate 33 and pressure-releasing chamber 35 is sealed and matched.Described pressure relief device is assemblied on the cylinder body of energy comsuming device, install, safeguard pressure relief device, all do not need to dismantle energy comsuming device, only need the first pressing plate of dismounting pressure relief device, namely can change and there is the pressure releasing valve core that different pressure release triggers stroke, namely there is the pressure releasing valve core in different length valve core rod portion.Be convenient to safeguard in routine use, efficiency is higher.Further, the outer peripheral surface in the valve core rod portion 312 of pressure releasing valve core 31 is provided with the diversion groove 3121 extended along its direction of axis line, as shown in Figure 5, when pressure release, is conducive to the circulation of resisting medium, quick pressure releasing.
Wherein, described passage 4, as shown in Figure 1, comprises first passage 41, second channel 42 and third channel 43.First passage 41 to be built in described first end cap 12 and and pressure-releasing chamber 35 seal and be communicated with, along the radially direct of the first end cap 12; Second channel 42 is arranged in the cylinder barrel wall of cylinder barrel 11, and the direction of axis line along cylinder barrel 11 distributes; Be positioned at the second end cap 13 side and be communicated with the second cavity seal, along the radially direct of cylinder barrel 11 in the cylinder barrel wall that third channel 43 is arranged at cylinder barrel 11.Described first passage 41, modulating valve 6, second channel 42 seal successively with third channel 43 and are communicated with, and modulating valve 6 also can be sealingly fastened between two passages 42 and third channel 43.Passage 4 is communicated with pressure-releasing chamber 35 and second chamber of pressure relief device 3, when damping is removed in pressure release, resisting medium in first chamber of cylinder body 1 flows out from pressure relief device, the second chamber of cylinder body 1 is flowed back to through passage 4, the total amount of the resisting medium in cylinder body 1 remains unchanged, and energy comsuming device can continuous operation, does not need frequently to inject resisting medium, reduce maintenance workload, also can reduce costs.On the other hand, the aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, makes energy comsuming device and coupled moving element synergy, to optimize the dynamic performance of moving element.
The working procedure of energy comsuming device of the present invention is: the aperture of adjustment modulating valve, controls the flow of resisting medium circulation passage, carrys out the power that damping adjusting is removed.Moving element drives piston 21 from the second end cap 13 side direction first end cap 12 lateral movement by piston rod, and the resisting medium of piston 21 compression cylinder produces damping force.Store energy by the resisting medium that compresses, resisting medium flows to low voltage side by the damping hole 23 on piston from high pressure side, namely flows to the second chamber from the first chamber, the portion of energy that release stores, and cushions the damping force produced.Piston 21 moves to the end in the valve core rod portion 312 of pressure releasing valve core 31, namely the pressure release of pressure releasing valve core triggers stroke place, pressure release triggering stroke refers to the distance between the end in valve core rod portion 312 to the first end cap lower end surface, piston 21 collides valve core rod portion 312, promote pressure releasing valve core 31 away from valve core case 36, trigger pressure relief device 3 pressure release, the resisting medium of the first chamber is flowed out by pressure relief device 3, the second chamber is back to through passage 4, the energy stored in resisting medium is released, and the damping force of energy comsuming device is removed.Namely be expert at Cheng Qian section of energy comsuming device of the present invention produces damping, and stroke latter end removes damping, and the moving element avoiding the damping force of energy comsuming device to promote to be connected with energy comsuming device of the present invention slows down at stroke latter end and produces at stroke destination county and rebounds.
Mode of execution 2
The difference of mode of execution 2 and mode of execution 1 is only: as shown in Figure 2, and described passage 4 comprises first passage 41, second channel 42 and third channel 43.First passage 41 to be built in described first end cap 12 and and pressure-releasing chamber 35 seal and be communicated with, along the radially direct of the first end cap 12; Second channel 42 is arranged at the outside of cylinder body 1, and the direction of axis line along cylinder barrel 11 distributes; Being communicated with the second cavity seal, along the radially direct of cylinder barrel 11 of the second end cap 13 side is positioned in the cylinder barrel wall that third channel 43 is arranged at cylinder barrel 11.Described first passage 41, second channel 42 seal successively with third channel 43 and are communicated with, and modulating valve 6 is arranged on second channel 42 and is also communicated with its sealing.
Mode of execution 3
The difference of mode of execution 3 and mode of execution 1 is only: as shown in Figure 3, and described pressure relief device 3 is assemblied in the upper end portion of the cylinder barrel wall of cylinder barrel 11, is namely positioned at first end lid 12 side.The pressure-releasing chamber 35 of pressure relief device 3 is arranged on the upper end of the cylinder barrel wall of cylinder barrel 11, it is made up of diapire and sidewall, open-topped, namely at the outboard end opening of cylinder barrel 11, this sentences the top and bottom of the dimensional orientation of the axial direction determination pressure relief device 3 of pressure relief device 3, and the direction away from energy comsuming device is top.Valve core rod portion 312 part extend in cylinder body 1 of described pressure releasing valve core 31 is spherical crown shape, also can be inclined plane shape or cam-like, to facilitate piston side wall to extrude pressure releasing valve core, can not cause damaged in collision to piston side wall.As shown in Figure 3, described passage 4 comprises second channel 42 and third channel 43.In the cylinder barrel wall that second channel 42 is built in cylinder barrel 11 and and pressure-releasing chamber 35 seal and be communicated with, the direction of axis line along cylinder barrel 11 distributes; Being communicated with the second cavity seal, along the radially direct of cylinder barrel 11 of the second end cap 13 side is positioned in the cylinder barrel wall that third channel 43 is arranged at cylinder barrel 11; Described second channel 42, modulating valve 6 seal successively with third channel 43 and are communicated with.Change the pressure releasing valve core with different length valve core rod portion, the end changing the spherical crown shape in valve core rod portion, inclined plane shape or cam-like is positioned at the extrusion position of side, piston upper-end surface on cylinder barrel 11 internal surface, realize regulating pressure release to trigger stroke, described pressure release triggering stroke refers to the distance between above-mentioned extrusion position to the first end cap lower end surface.Smooth excessiveness between the end in the valve core rod portion at described extrusion position place and cylinder barrel 11 internal surface, with the end facilitating piston side to extrude flexible rod.When piston 21 is from the second end cap 13 side direction first end cap 12 lateral movement, piston 21 compression damping medium produces damping, piston 21 moves to the end in the valve core rod portion 312 of pressure releasing valve core 31, namely pressure release triggers stroke place, the valve core rod portion 312 of the side wall surface extruding pressure releasing valve core of piston 21, promote pressure releasing valve core 31 away from valve core case 36, trigger pressure relief device 3 pressure release, the damping force of energy comsuming device is removed.Be expert at Cheng Qian section of energy comsuming device of the present invention produces damping, and row latter end solution removes damping, avoids the moving element be connected with energy comsuming device of the present invention to produce in stroke end and rebounds.
Described passage 4 also has another kind of layout type (not shown in FIG.), and described passage 4 comprises first passage 41, second channel 42 and third channel 43.First passage 41 is fixed on the first pressing plate 33 and is also communicated with pressure-releasing chamber 35 sealing, and it is outside to be positioned at cylinder body 1, along the radially direct of cylinder barrel 11; It is outside that second channel 42 is arranged at cylinder body 1, and the direction of axis line along cylinder barrel 11 distributes; Being communicated with the second cavity seal, along the radially direct of cylinder barrel 11 of the second end cap 13 side is positioned in the cylinder barrel wall that third channel 43 is arranged at cylinder barrel 11.Described first passage 41, second channel 42 seal successively with third channel 43 and are communicated with, and modulating valve 6 is arranged on second channel 42 and is also communicated with its sealing.
Pressure relief device 3 is assemblied on the cylinder barrel wall of described cylinder body 1, install, safeguard and change pressure releasing valve core time, all do not need energy comsuming device to remove from connected moving element, operate very easy, maintenance efficiency is higher.
In use, the cylinder body of the energy comsuming device of the respective embodiments described above is fixed, piston rod is fixedly connected with needing the moving element cushioned.Moving element drives piston from the second end cap side direction first end cap lateral movement by piston rod, the resisting medium in piston compression cylinder body, and produce damping force, damping force strengthens fast with the quickening of piston movement speed, promotes that moving element slows down simultaneously.Store energy by the resisting medium that compresses, resisting medium flows to low voltage side by the damping hole on piston from high pressure side, namely flows to the second chamber from the first chamber, the portion of energy that release stores, and cushions the damping force produced.At stroke latter end, the movement velocity of piston is very high relative to the last stage, and store higher energy by the resisting medium that compresses, the damping force of generation is larger, stronger to the deceleration promoting effect of moving element.The pressure release removed to damping when piston movement triggers stroke place, the i.e. end in the valve core rod portion of pressure releasing valve core, the pressure releasing valve core of pressure relief device on piston slap or extruding energy comsuming device, resisting medium is flowed out by pressure relief device, the energy that release stores, the damping force of energy comsuming device is removed, and eliminates damping force, remove the damping force promoting that moving element slows down, make moving element maintain higher speed and move to stroke end fast; When moving element moves to stroke end place, the energy stored by the resisting medium in energy comsuming device is eliminated, and the damping force of energy comsuming device is removed, and moving element can not be caused to rebound, and the dynamic performance of fortune parts is moved in favourable raising.In addition, the aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, makes energy comsuming device and coupled moving element synergy, to optimize the dynamic performance of moving element further.Channel connection is adopted between described pressure relief device and the second chamber, when damping is removed in pressure release, resisting medium in cylinder body first chamber flows out from pressure relief device, the second chamber of cylinder body is flowed back to through passage, the total amount of the resisting medium in cylinder body remains unchanged, and energy comsuming device can continuous operation, does not need frequently to inject resisting medium, reduce maintenance workload, also can reduce costs.Described pressure relief device is assemblied on the cylinder body of energy comsuming device, install, safeguard pressure relief device, all do not need to dismantle energy comsuming device, only need the first pressing plate of dismounting pressure relief device, namely can change and there is the pressure releasing valve core that different pressure release triggers stroke (also namely having different length valve core rod portion), be convenient to safeguard in routine use, efficiency is higher.
Mode of execution 4
A kind of mechanical switch of the present invention, as shown in Figure 6, is made up of three single-pole switch 9 and control circuit, and wherein the structure structure of three single-pole switch 9 is all identical, will be described below to one of them single-pole switch.Described single-pole switch 9 comprises vacuum bubbles 91, insulating cylinder 92, electromagnetic driver 93, and described vacuum bubbles 91, insulating cylinder 92, electromagnetic driver 93 are axially connected with energy comsuming device 94 of the present invention and fix.Described insulating cylinder 92 is built-in with energy storage apparatus 95, and described energy storage apparatus 95 comprises the cylinder body 951 be arranged in insulating cylinder 92, spring 954, piston 952 and piston rod 953.The cylinder body 951 of insulating cylinder 92 is the obturators be made up of bottom cover 9513, cylinder barrel 9512 and top end cover 9511, and the avris of bottom cover 9513 is fixed in the lower end of cylinder barrel 9512, further, cylinder barrel 9512 and bottom cover 9513 one-body molded, be convenient to manufacturing; Described top end cover 9511 covers on the top of cylinder barrel 9512, and is sealed and matched with top end.It is inner that described piston 952 is arranged on cylinder body 951, the side surface of piston 952 and the internal surface slipper seal of cylinder barrel 9512 coordinate, one end of described piston rod 953 extend into cylinder body 951 inside through the through hole in the middle part of top end cover 9511, and fix with the piston 952 be arranged in cylinder body 951, piston rod 953 and piston 952 are sealed and matched, and the through hole slipper seal in the middle part of piston rod 953 and top end cover 9511 coordinates; Described spring 954 is arranged between the bottom cover 9513 of cylinder body 951 and piston 952, and bonded to each other.Damping oil is filled in the cylinder body 951 of insulating cylinder 92, also can damping gas or other resisting medium.The piston rod of the extraction axle of the moving contact of described vacuum bubbles 91 and the embedded energy storage apparatus 95 of insulating cylinder 92 is fixed, lower end axle and electromagnetic driver 93 one end axle of insulating cylinder 92 fix, the other end axle of electromagnetic driver 93 and the piston rod of energy comsuming device of the present invention 94 fix, and the cylinder body of energy comsuming device 94 and the frame of mechanical switch fix.The end axle of the extraction axle of the moving contact of described vacuum bubbles 91, insulating cylinder 92, electromagnetic driver 93 forms the moving element of mechanical switch.
In current prior art, have employed the high and low pressure switching device of energy storage apparatus and energy comsuming device technology, the moving contact of its vacuum bubbles point, close a floodgate and particularly close a floodgate time often can produce moving contact spring problem.This is mainly because during combined floodgate, the electromagnetic driver of switching device drives the piston setting in motion of this energy comsuming device inside, and piston compression resisting medium produces damping, and the movement velocity of this step piston is relatively low, and the damping force of generation is less; Before stroke latter end is about to close a floodgate, the movement velocity of piston is very high relative to the last stage, and the damping force of generation is very large.The direction of described damping force is contrary with the direction that moving contact moves, and has stronger decelerating effect to moving contact, can increase closing time; The direction of damping force is identical with the direction that switch on of moving contact is bounced again, can promote moving contact reversing motion when closing a floodgate, and brings out switch on of moving contact spring, affects the combined floodgate performance of switching device.So, adopt energy comsuming device can improve the separating brake performance of mechanical switch, but its combined floodgate performance can be reduced simultaneously.
Mechanical switch of the present invention and energy comsuming device of the present invention with the use of, energy comsuming device is connected with the moving element axial restraint for divide-shut brake of mechanical switch.The cylinder body of energy comsuming device arranges pressure relief device, and pressure relief device is built-in with the pressure releasing valve core for triggering pressure release, and the valve core rod portion of pressure releasing valve core extend in the cylinder body of described energy comsuming device.Before being about to combined floodgate, the high speed piston motion that energy comsuming device of the present invention is built-in, the pressure release removed to damping when piston movement triggers stroke place, the i.e. end in the valve core rod portion of pressure releasing valve core, the pressure releasing valve core of piston slap pressure relief device, trigger pressure relief device pressure release, the damping force of energy comsuming device is removed, eliminate the damping force contrary with moving contact moving direction, make moving contact maintain higher speed and move to stroke end fast; Eliminate the identical damping force in direction of bounce with switch on of moving contact, the switch on of moving contact reducing damping force promotion is bounced.Like this, before will closing a floodgate, remove damping force, can reduce the moving contact spring of vacuum bubbles during combined floodgate, described moving contact can be made again to keep more speed to close a floodgate, and closing time is shortened further, improves the combined floodgate performance of mechanical switch.The aperture of adjustment modulating valve carrys out the power of damping adjusting releasing, make moving element and energy storage apparatus synergy when closing a floodgate of energy comsuming device and mechanical switch, improve the dynamic performance of mechanical switch, reduce closing rebound further, the combined floodgate performance of mechanical switch obtains to be optimized further.Described pressure relief device is assemblied on the cylinder body of energy comsuming device, pressure relief device is installed, when safeguarding, as changed, there is the pressure releasing valve core that different pressure release triggers stroke, namely there is the pressure releasing valve core in different length valve core rod portion, do not need to disassemble energy comsuming device, even do not need energy comsuming device to remove from mechanical switch, only need the first pressing plate of dismounting pressure relief device, easy and simple to handle, safeguard more efficient, more convenient.
Compared to the prior art the present invention, has following progressive.
1) damping force of energy comsuming device is removed at stroke latter end, can not promote that coupled moving element rebounds, by arranging pressure relief device on energy comsuming device, the piston of energy comsuming device Cheng Qian section compression damping medium of being expert at produces damping, when piston movement is to the pressure release triggering travel point place of stroke latter end, the pressure releasing valve core of piston collisions pressure relief device triggers pressure relief device and carries out pressure release, the damping force of energy comsuming device is removed, speed motion when moving element keeps damping to remove, avoids the damping force of energy comsuming device to cause moving element oppositely to bounce at stroke destination county.
2) conveniently install, debug and safeguard pressure relief device, by pressure relief device is assemblied on the cylinder body of energy comsuming device, pressure relief device is installed, when safeguarding, as changed, there is the pressure releasing valve core that different pressure release triggers stroke, do not need to disassemble energy comsuming device, even do not need energy comsuming device to remove from the moving element be connected, only need the first pressing plate of dismounting pressure relief device, easy and simple to handle, safeguard more efficient, more convenient.
3) power of damping releasing is adjustable, by arranging modulating valve on passage, the aperture of adjustment modulating valve, control the flow of resisting medium circulation passage, carry out the power that damping adjusting is removed, make energy comsuming device and coupled moving element synergy, optimize the dynamic performance of moving element further
4) the combined floodgate performance of mechanical switch is improved, by energy comsuming device of the present invention is axially connected with the moving element for divide-shut brake of mechanical switch, before will closing a floodgate, the pressure releasing valve core of the piston collisions pressure relief device that energy comsuming device is built-in triggers pressure relief device and carries out pressure release, the damping force of energy comsuming device is removed, eliminate contrary with moving contact moving direction and to bounce the identical damping force in direction with switch on of moving contact, eliminate the switch on of moving contact spring that damping force promotes, make the closing speed that moving contact keeps higher, closing time is shortened further simultaneously.In addition, carried out the power of damping adjusting releasing by the aperture adjusting modulating valve, making the moving element of energy comsuming device and mechanical switch synergy when closing a floodgate, improving the dynamic performance of moving element, further reduction closing rebound, the combined floodgate performance of mechanical switch is optimized further.
More than show and describe basic principle of the present invention, 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 application claims protection domain is defined by appending claims, specification and equivalent thereof.
Claims (10)
1. an energy comsuming device, comprise cylinder body (1), piston (21) and piston rod (22), described cylinder body (1) comprises the first end cap (12) fixing successively, cylinder barrel (11) and the second end cap (13), one end of described piston rod (22) is run through the first end cap (12) and is extend into cylinder body (1) inside, fix with the described piston (21) be arranged in cylinder body (1), described piston (21) is separated into the first chamber being positioned at the first end cap (12) side and the second chamber being positioned at the second end cap (13) side the internal chamber of cylinder body (1), it is characterized in that: also comprise the pressure relief device (3) be assemblied on described cylinder body (1), the valve core rod portion (312) of the pressure releasing valve core (31) that described pressure relief device (3) is built-in extend in cylinder body (1), be communicated with by passage (4) between described pressure relief device (3) and the second chamber, the upper setting of described passage (4) is used for the modulating valve (6) that damping adjusting removes power.
2. a kind of pressure relief device according to claim 1, it is characterized in that: described pressure relief device (3) comprises the pressure-releasing chamber (35) being made up of open-topped diapire and sidewall be arranged on described cylinder body (1), also comprise and be built in pressure-releasing chamber (35) and first pressing plate (33) of fitting successively, Returnning spring (32), pressure releasing valve core (31), valve core case (36), the open-topped of the first pressing plate (33) and pressure-releasing chamber (35) is fixed; Described valve core case (36) is arranged on the inside bottom wall of pressure-releasing chamber (35), the diapire of pressure-releasing chamber (35) is provided with the valve seat orifice (37) extended along valve core case (36) direction of axis line, the valve core rod portion (312) that described pressure releasing valve core (31) comprises spool portion (311) and extends along spool portion (311) direction of axis line, described spool portion (311) and valve core case (36) are sealed and matched, and valve core rod portion (312) are run through and protruded from valve seat orifice (37).
3. a kind of energy comsuming device according to claim 2, is characterized in that: the outer surface in the valve core rod portion (312) of described pressure releasing valve core (31) is provided with the diversion groove (3121) extended along its direction of axis line.
4. a kind of energy comsuming device according to claim 3, is characterized in that: described first end cap (12) and cylinder barrel (11) one-body molded.
5. a kind of energy comsuming device according to the arbitrary claim of claim 4, is characterized in that: described pressure relief device (3) is assemblied on first end cap (12) of described cylinder body (1).
6. a kind of energy comsuming device according to the arbitrary claim of claim 4, it is characterized in that: described pressure relief device (3) is assemblied on the cylinder barrel wall of described cylinder barrel (11), be positioned at the first end cap (12) side, valve core rod portion (312) part extend in cylinder body (1) of described pressure releasing valve core (31) is spherical crown shape, inclined plane shape or cam-like.
7. a kind of energy comsuming device according to claim 5, is characterized in that:
Described passage (4) comprise be built in described first end cap (12) and seal with pressure-releasing chamber (35) first passage (41) be communicated with, in the cylinder barrel wall being arranged at cylinder barrel (11) or the outside second channel (42) of cylinder body (1), be arranged at cylinder barrel (11) cylinder barrel wall in and be positioned at the third channel (43) is communicated with the second cavity seal of the second end cap (13) side, described first passage (41), modulating valve (6), second channel (42) seal with third channel (43) and are communicated with.
8. a kind of energy comsuming device according to claim 5 or 6, is characterized in that:
Described passage (4) comprise be built in cylinder barrel (11) cylinder barrel wall in and and pressure-releasing chamber (35) seal the second channel (42) be communicated with, the cylinder barrel wall being arranged at cylinder barrel (11) interior and be positioned at the third channel (43) be communicated with the second cavity seal of the second end cap (13) side, described second channel (42), modulating valve (6) seal with third channel (43) and are communicated with; Or,
Described passage (4) comprise be fixed on first pressing plate (33) of described pressure relief device (3) and with pressure-releasing chamber (35) seal be communicated with first passage (41), be arranged at the outside second channel (42) of cylinder body (1), be arranged in the cylinder barrel wall of cylinder barrel (11) and be positioned at the third channel (43) is communicated with the second cavity seal of the second end cap (13) side, described first passage (41), modulating valve (6), second channel (42) seal with third channel (43) and are communicated with.
9. a mechanical switch, comprise energy comsuming device according to claim 1, it is characterized in that: described mechanical switch also comprises at least one Mono-pole switch (9), described single-pole switch (9) comprises vacuum bubbles (91), insulating cylinder (92) and electromagnetic driver (93), and described vacuum bubbles (91), insulating cylinder (92), electromagnetic driver (93) are connected with described energy comsuming device (94) axial restraint.
10. a kind of mechanical switch according to claim 9, it is characterized in that: described insulating cylinder (92) embedded energy storage apparatus (95), described energy storage apparatus (95) comprises cylinder body (951), piston (952), piston rod (953) and spring (954), described cylinder body (951) comprises and seals fixing top end cover (9511) successively, cylinder barrel (9512) and bottom cover (9513), described piston rod (953) to extend in cylinder body (951) through the top end cover (9511) of cylinder body (951) and and the piston (952) be arranged in cylinder body (951) fix, (952) arrange overflow hole to piston, spring (954) is arranged between the bottom cover (9513) of cylinder body (951) and piston (952).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934284.6A CN105351274A (en) | 2015-12-14 | 2015-12-14 | Energy consumer and mechanical switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934284.6A CN105351274A (en) | 2015-12-14 | 2015-12-14 | Energy consumer and mechanical switch |
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| CN105351274A true CN105351274A (en) | 2016-02-24 |
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| CN201510934284.6A Pending CN105351274A (en) | 2015-12-14 | 2015-12-14 | Energy consumer and mechanical switch |
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Application publication date: 20160224 |