WO2004113027A1 - Autonomous pneumatic pressure device - Google Patents

Autonomous pneumatic pressure device Download PDF

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Publication number
WO2004113027A1
WO2004113027A1 PCT/ES2004/000268 ES2004000268W WO2004113027A1 WO 2004113027 A1 WO2004113027 A1 WO 2004113027A1 ES 2004000268 W ES2004000268 W ES 2004000268W WO 2004113027 A1 WO2004113027 A1 WO 2004113027A1
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WO
WIPO (PCT)
Prior art keywords
pneumatic
autonomous
pressure device
pneumatic pressure
pressure
Prior art date
Application number
PCT/ES2004/000268
Other languages
Spanish (es)
French (fr)
Inventor
Leonardo Luis Di Benedetto
Original Assignee
MARTÍNEZ OLIVARES, José
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MARTÍNEZ OLIVARES, José filed Critical MARTÍNEZ OLIVARES, José
Publication of WO2004113027A1 publication Critical patent/WO2004113027A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F01B17/02—Engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • F17C2205/0111—Boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/0126—One vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0545—Tools

Definitions

  • the new invention comprises a pneumatic pressure device consisting of a reservoir or small vessel comprising a high pressure gas, either liquefied or compressed, which can be released through a pressure regulator that adapts the internal pressure to the working pressure and a valve of passage or actuation of the device, attachable to presses, jaws and other pneumatic machines in which the important factor is the pressure of the circuit to work, giving them a portability factor given its small size and light weight.
  • a pneumatic pressure device consisting of a reservoir or small vessel comprising a high pressure gas, either liquefied or compressed, which can be released through a pressure regulator that adapts the internal pressure to the working pressure and a valve of passage or actuation of the device, attachable to presses, jaws and other pneumatic machines in which the important factor is the pressure of the circuit to work, giving them a portability factor given its small size and light weight.
  • this torpedo comprises the air or gas under pressure that is needed to drive the dust in case the extinguisher is used.
  • the torpedo valve is opened and the pressurized gas goes on to fill the entire body that has the dust, thus exerting a force so that it is expelled by the outlet nozzle.
  • This type of device is for single use, since once the torpedo is opened, it must be replaced in order to use the extinguisher again.
  • guns and weapons of gas or compressed air in which the weapon comprises a tank or container with a compressed gas, which communicates with a firing pin of the bullet or projectile, formed by a single-acting cylinder equipped with a spring of great expansion constant.
  • the autonomous pneumatic pressure device object of this register is characterized in that it allows machines that until now had to be used in a fixed way associated with a compressor, which is difficult to transport, can carry out tasks independently.
  • the new invention releases the autonomy or possibility of use by professionals such as metalworking, mechanical and other installers who often use machines that are in whole or in part pneumatically operated, such as presses, pneumatic shears, clamps clamping or cutting saws among others.
  • professionals are forced to take part of the work back to the workshop, load with a bulky compressor that depends on a plug connected to the mains or use power tools not as efficient and light as pneumatic.
  • the aim of the new invention is to obtain a device with small, compact and lightweight components, so that they can be easily associated with a pneumatic tool providing sufficient autonomy and dispensing with compressors and similar devices that are bulky and difficult to move.
  • the device mainly comprises a reservoir of a compressed or liquefied gas, so that there is a very high pressure inside.
  • This tank is associated with a pressure regulator at its outlet so that the internal pressure of the tank is lowered to a conventional working pressure for the tools.
  • This regulator also has the mission of stabilizing said working pressure, keeping it constant, even if the pressure inside the tank decreases until they equalize, at which time it is necessary to recharge the tank, or change it to a full one, due to exhaustion.
  • shut-off valve At the outlet of the tank is a shut-off valve that determines whether the device supplies the pressure or not to the machine. Even this valve can comprise a howitzer that opens it at the moment the device is plugged in or coupled to the tool or machine automatically. Additionally there is a pulsating control valve, which can be directly or remotely operated, by means of an electromechanism or solenoid valve, a mechanical actuation by cable or the like. This control valve is arranged mainly in the tool or machine, but optionally it can be arranged in the device for technical needs.
  • the gas used in the tank can be of any nature that allows its use with pneumatic tools without deteriorating them.
  • gases and fluids having high compressibility such as carbon dioxide (CO 2) or similar which can be supplied easily into discrete deposits to a pressure of 100 bar. This is important, considering that the working pressure can be around 2 to 8 bars, for example.
  • CO 2 carbon dioxide
  • Another type of power fluid that can be used is liquefied gases, which are stored in liquid form with a small gas bag, but as the gaseous part is removed evaporation of the liquid occurs, maintaining the pressure again interior by balance. Due to the needs of the tool or use, the gas can be mixed with oil or lubricant.
  • the tank be of a contained size, allowing the tool to be attached as a cartridge and transported by the user as a conventional hand tool.
  • the present device is more suitable for pneumatic machines in which the main operating needs are the pressure and not the flow rate. Connecting the device to a machine that needs a large flow or consumption of pressurized gas can easily deplete the pressurized tank.
  • machines of the type comprising short-distance pneumatic cylinders and the like, which are not operated a large number of times in a short space of time, such as tapping tools, are suitable for use. This is because the machine drive does not imply a large discharge from the tank.
  • a machine can be associated with more than one device as a source of energy. Indeed, by using a distributor or similar existing in the machine or independent can be associated more than one device in battery, increasing the autonomy and capacity of operation.
  • Figure 1 Shows a scheme of constitution of the device for a piston tool.
  • Figure 2. Shows a schematic view of a machine with several battery-powered devices through a distributor.
  • Figure 3 Shows a schematic view of a saw cutting tool with a pneumatic clamp.
  • Figure 4 Shows a schematic view of pruning shears with pneumatic drive system.
  • a preferred but not limiting embodiment of the invention consists of a pressure device (1) constituted by a reservoir (3) or Pressurized gas reservoir that has a pressure regulator (4) and a shut-off valve (5) at its outlet, which can be connected to a pneumatic machine (2) by means of a connection (14), fitting or quick plug.
  • the pneumatic machine (2) comprises a control valve (6) and an actuator (7), such as a pneumatic cylinder, a turbine, a nozzle or blower or other pneumatic consumption element.
  • several pressure devices (1) can be connected to the pneumatic machine (2) simultaneously through a manifold (8).
  • the device (1) comprises as a shut-off valve (5) a howitzer valve with automatic connection to the pneumatic machine when it is plugged in.
  • a portable saw with a clamp for holding the bar or element to be cut, it comprises a bed (9) and on it the oscillating saw (10) on a support, the device (1) existing in said bed (9) ) of pressure, related to an actuator cylinder (7) on a caliper (11) or clamping piston on said bed (9), the control valve (not shown) being related to the oscillation of the saw (10) for its automatic drive
  • the scissors comprise a body (12), associated with a mobile cutting blade (13). Inside the body (12) is the pressure device (1), related to a direct-operated control valve (6) by button, which is connected to an actuator (7), such as a pneumatic cylinder whose rod is attached to the mobile blade (13).
  • an actuator (7) such as a pneumatic cylinder whose rod is attached to the mobile blade (13).
  • a portable pneumatic automatism comprises the device (1) associated with a pneumatic logic circuit for its portable drive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention relates to an autonomous pneumatic pressure device. The inventive device consists of a container or small receptacle containing a very high-pressure compressed or liquefied gas which can be dosed through a pressure regulator, which can regulate the pressure up to a working pressure, and a shutoff valve. According to the invention, the device can be connected to a pneumatic or partially-pneumatic machine such that it is totally portable and autonomous and can be transported by the user. The pneumatic machine can be a press, a fixing system with clamps, scissors or any other machine.

Description

DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO.AUTONOMOUS PNEUMATIC PRESSURE DEVICE.
MEMORIA DESCRIPTIVA. OBJETO DE LA INVENCIÓN. La presente solicitud de Patente de Invención tiene por objeto el registro de un dispositivo de presión neumática autónomo que incorpora notables innovaciones y ventajas frente a los actuales medios de suministro de presión neumática o máquinas que funcionan con presión neumática existentes.DESCRIPTIVE MEMORY. OBJECT OF THE INVENTION The purpose of the present invention patent application is to register an autonomous pneumatic pressure device that incorporates notable innovations and advantages over current pneumatic pressure supply means or machines operating with existing pneumatic pressure.
Más concretamente la nueva invención comprende un dispositivo de presión neumática constituida por un depósito o pequeño recipiente que comprende un gas a alta presión, ya sea licuado o comprimido, el cual se puede liberar a través de un regulador de presión que adapta la presión interna a la presión de trabajo y una válvula de paso o accionamiento del dispositivo, acoplable a prensas, mordazas y otras máquinas neumáticas en las que el factor importante es la presión del circuito para funcionar, aportándoles un factor de portabilidad dado su pequeño tamaño y ligero peso.More specifically, the new invention comprises a pneumatic pressure device consisting of a reservoir or small vessel comprising a high pressure gas, either liquefied or compressed, which can be released through a pressure regulator that adapts the internal pressure to the working pressure and a valve of passage or actuation of the device, attachable to presses, jaws and other pneumatic machines in which the important factor is the pressure of the circuit to work, giving them a portability factor given its small size and light weight.
ANTECEDENTES DE LA INVENCIÓN. Actualmente en el mercado hay disponibles una gran variedad de máquinas neumáticas que funcionan total o parcialmente con aire a presión, tal como prensas, pinzas, remachadoras, turbinas, sistemas de automatismos y otros. Estas máquinas obtienen el aire a presión, que es la energía que las mueve, de compresores que comprimen el aire ambiente hasta una presión adecuada. Mediante las canalizaciones adecuadas, hasta las herramientas manuales o fijas. Esto se realiza porque estos compresores asociados a un motor eléctrico o de combustión son voluminosos y difíciles de mover, sobre todo si comprenden un calderín de almacenamiento de aire a presión. Por lo tanto no son utilizables como herramientas totalmente portátiles o autónomas. Son conocidos los extintores de tipo polvo que comprenden además del cuerpo de almacenamiento del polvo o agente extintor, un depósito de gas a presión independiente, conocido como torpedo. Tal como se ha mencionado, este torpedo comprende el aire o gas a presión que se necesita para impulsar el polvo en caso de usarse el extintor. Para ello se abre la válvula del torpedo y el gas a presión pasa a llenar todo el cuerpo que tiene el polvo, ejerciendo así una fuerza para que este salga expulsado por la boquilla de salida. Este tipo de dispositivo es de un solo uso, ya que una vez abierto el torpedo hay que recambiarlo para poder volver a utilizar el extintor. También son conocidas las pistolas y armas de gas o aire comprimido, en las que el arma comprende un depósito o recipiente con un gas comprimido, que comunica con un percutor de la bala o proyectil, formado por un cilindro de simple efecto dotado de un muelle de gran constante de expansión. En estas pistolas y armas el aire empuja el percutor para comprimir un muelle, el cual impulsa la bala al oprimir el gatillo. Una vez realizado el disparo la presión del gas contenido en el depósito hace retroceder el percutor o cilindro hasta un nuevo disparo de forma automática. Dadas estas condiciones la presión del gas del depósito va descendiendo, afectando a la velocidad de retroceso.BACKGROUND OF THE INVENTION Currently, a wide variety of pneumatic machines are available on the market that work totally or partially with pressurized air, such as presses, clamps, riveters, turbines, automation systems and others. These machines obtain the pressurized air, which is the energy that moves them, from compressors that compress the ambient air to an adequate pressure. Through the appropriate pipes, up to the manual or fixed tools. This is done because these compressors associated with an electric or combustion engine are bulky and difficult to move, especially if they comprise a pressure air storage boiler. Therefore they are not usable as fully portable or autonomous tools. Powder type extinguishers are known which comprise in addition to the dust storage body or extinguishing agent, an independent pressure gas tank, known as torpedo. As mentioned, this torpedo comprises the air or gas under pressure that is needed to drive the dust in case the extinguisher is used. To do this, the torpedo valve is opened and the pressurized gas goes on to fill the entire body that has the dust, thus exerting a force so that it is expelled by the outlet nozzle. This type of device is for single use, since once the torpedo is opened, it must be replaced in order to use the extinguisher again. Also known are guns and weapons of gas or compressed air, in which the weapon comprises a tank or container with a compressed gas, which communicates with a firing pin of the bullet or projectile, formed by a single-acting cylinder equipped with a spring of great expansion constant. In these guns and weapons the air pushes the firing pin to compress a spring, which drives the bullet by pressing the trigger. Once the shot is made, the pressure of the gas contained in the tank pushes the firing pin or cylinder back to a new shot automatically. Given these conditions the gas pressure in the tank decreases, affecting the recoil speed.
DESCRIPCIÓN DE LA INVENCIÓN. El dispositivo de presión neumática autónomo objeto del presente registro, se caracteriza porque permite que máquinas que hasta ahora se tenían que usar de forma fija asociada con un compresor, que es difícilmente transportable, se puedan llevar a realizar tareas de forma independiente. En efecto la nueva invención libera la autonomía o posibilidad de uso por parte de profesionales tales como instaladores de carpintería metálica, mecánicos y otros que usan muchas veces máquinas que en todo o en parte son de accionamiento neumático, tales como prensas, cizallas neumáticas, pinzas de sujeción o sierras de corte entre otros. De forma general, en estos casos, estos profesionales se ven obligados a llevar parte del trabajo nuevamente al taller, cargar con un voluminoso compresor que depende de un enchufe conectado a la red eléctrica o utilizar herramientas eléctricas no tan eficaces y ligeras como las neumáticas. El objetivo de la nueva invención es obtener un dispositivo con unos componentes pequeños, compactos y ligeros, de forma que se puedan asociar con facilidad con una herramienta neumática proveyéndole de la autonomía suficiente y prescindiendo de compresores y aparatos similares que son voluminosos y difíciles de mover. El dispositivo comprende principalmente un depósito de un gas comprimido o licuado, de forma que en su interior existe una muy alta presión. Este depósito está asociado con un regulador de presión a su salida de forma que la presión interior del depósito es rebajada a una presión convencional de trabajo para las herramientas. Este regulador además tiene la misión de estabilizar dicha presión de trabajo, manteniéndola constante, aunque la presión en el interior del depósito vaya descendiendo hasta que se igualen, momento en el que es necesario recargar el depósito, o cambiarlo por otro lleno, por agotamiento. A la salida del depósito se encuentra una válvula de corte que determina si el dispositivo suministra la presión o no a la máquina. Incluso esta válvula puede comprender un obús que la abre en el momento que el dispositivo se enchufa o acopla a la herramienta o máquina de forma automática. Adicionalmente existe una válvula de mando pulsante, que puede ser de accionamiento directo o remoto, mediante un electromecanismo o electroválvula, un accionamiento mecánico por cable o similar. Esta válvula de mando está dispuesta principalmente en la herramienta o máquina, pero opcionalmente puede estar dispuesta en el dispositivo por necesidades técnicas. El gas utilizado en el depósito puede ser de cualquier naturaleza que permita su uso con herramientas neumáticas sin deteriorarlas. Sin embargo es aconsejable el uso de aquellos gases y fluidos que tengan una alta compresibilidad, tal como el dióxido de carbono (CO2) o similar que se puede suministrar con facilidad en depósitos discretos hasta una presión de 100 bares. Esto es importante, teniendo en cuenta que la presión de trabajo puede estar al entorno de los 2 a los 8 bares, por ejemplo. Otro tipo de fluido de potencia que se puede utilizar son los gases licuados, que están almacenados de forma líquida con una pequeña bolsa de gas, pero que a medida que la parte gaseosa se va extrayendo se produce la evaporación del líquido, manteniendo nuevamente la presión interior por equilibrio. Por necesidades de la herramienta o utilización, el gas puede ir mezclado con aceite o lubricante.DESCRIPTION OF THE INVENTION The autonomous pneumatic pressure device object of this register is characterized in that it allows machines that until now had to be used in a fixed way associated with a compressor, which is difficult to transport, can carry out tasks independently. In fact, the new invention releases the autonomy or possibility of use by professionals such as metalworking, mechanical and other installers who often use machines that are in whole or in part pneumatically operated, such as presses, pneumatic shears, clamps clamping or cutting saws among others. In general, in these cases, These professionals are forced to take part of the work back to the workshop, load with a bulky compressor that depends on a plug connected to the mains or use power tools not as efficient and light as pneumatic. The aim of the new invention is to obtain a device with small, compact and lightweight components, so that they can be easily associated with a pneumatic tool providing sufficient autonomy and dispensing with compressors and similar devices that are bulky and difficult to move. . The device mainly comprises a reservoir of a compressed or liquefied gas, so that there is a very high pressure inside. This tank is associated with a pressure regulator at its outlet so that the internal pressure of the tank is lowered to a conventional working pressure for the tools. This regulator also has the mission of stabilizing said working pressure, keeping it constant, even if the pressure inside the tank decreases until they equalize, at which time it is necessary to recharge the tank, or change it to a full one, due to exhaustion. At the outlet of the tank is a shut-off valve that determines whether the device supplies the pressure or not to the machine. Even this valve can comprise a howitzer that opens it at the moment the device is plugged in or coupled to the tool or machine automatically. Additionally there is a pulsating control valve, which can be directly or remotely operated, by means of an electromechanism or solenoid valve, a mechanical actuation by cable or the like. This control valve is arranged mainly in the tool or machine, but optionally it can be arranged in the device for technical needs. The gas used in the tank can be of any nature that allows its use with pneumatic tools without deteriorating them. However it is advisable to use those gases and fluids having high compressibility, such as carbon dioxide (CO 2) or similar which can be supplied easily into discrete deposits to a pressure of 100 bar. This is important, considering that the working pressure can be around 2 to 8 bars, for example. Another type of power fluid that can be used is liquefied gases, which are stored in liquid form with a small gas bag, but as the gaseous part is removed evaporation of the liquid occurs, maintaining the pressure again interior by balance. Due to the needs of the tool or use, the gas can be mixed with oil or lubricant.
Dada la aplicación que se le confiere al dispositivo se ha previsto que el depósito sea de un tamaño contenido, permitiendo que se pueda acoplar a la herramienta como un cartucho y transportado por el usuario a modo de herramienta manual convencional.Given the application conferred on the device, it is envisaged that the tank be of a contained size, allowing the tool to be attached as a cartridge and transported by the user as a conventional hand tool.
Dada la naturaleza de la invención, el presente dispositivo es más adecuado para máquinas neumáticas en las que las necesidades de funcionamiento principales sea la presión y no el caudal. Conectar el dispositivo a una máquina que necesita un gran caudal o consumo de gas presurizado puede agotar con facilidad el depósito presurizado. Sin embargo, las máquinas del tipo que comprenden cilindros neumáticos de corto recorrido y similares, los cuales no son accionados una gran cantidad de veces en un corto espacio de tiempo, tales como herramientas de golpeteo, son idóneas para su uso. Esto es debido a que el accionamiento de la máquina no implica una gran descarga del depósito. En caso necesario se ha previsto que una máquina pueda estar asociada a más de un dispositivo como fuente de energía. En efecto, mediante el uso de un distribuidor o similar existente en la máquina o independiente se puede asociar más de un dispositivo en batería, aumentando la autonomía y capacidad de funcionamiento.Given the nature of the invention, the present device is more suitable for pneumatic machines in which the main operating needs are the pressure and not the flow rate. Connecting the device to a machine that needs a large flow or consumption of pressurized gas can easily deplete the pressurized tank. However, machines of the type comprising short-distance pneumatic cylinders and the like, which are not operated a large number of times in a short space of time, such as tapping tools, are suitable for use. This is because the machine drive does not imply a large discharge from the tank. If necessary, it is foreseen that a machine can be associated with more than one device as a source of energy. Indeed, by using a distributor or similar existing in the machine or independent can be associated more than one device in battery, increasing the autonomy and capacity of operation.
Para completar la descripción que seguidamente se va a realizar y con objeto de ayudar a una mejor comprensión de sus características, se acompaña a la presente memoria descriptiva, de un juego de figuras, de forma ilustrativa y no limitativa, donde se representan los detalles más significativos de la invención.To complete the description that is going to be carried out below and in order to help a better understanding of its characteristics, this descriptive report is accompanied by a set of figures, in an illustrative and non-limiting way, where the details are represented more significant of the invention.
BREVE DESCRIPCIÓN DE LOS DISEÑOS. Figura 1. Muestra un esquema de constitución del dispositivo para una herramienta de pistón. Figura 2. Muestra una vista esquematizada de una máquina con varios dispositivos en batería mediante un distribuidor.BRIEF DESCRIPTION OF THE DESIGNS. Figure 1. Shows a scheme of constitution of the device for a piston tool. Figure 2. Shows a schematic view of a machine with several battery-powered devices through a distributor.
Figura 3. Muestra una vista esquematizada de una herramienta de corte por sierra con una pinza de sujeción neumática.Figure 3. Shows a schematic view of a saw cutting tool with a pneumatic clamp.
Figura 4. Muestra una vista esquematizada de unas tijeras de poda con sistema de accionamiento neumático.Figure 4. Shows a schematic view of pruning shears with pneumatic drive system.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE. A la vista de las comentadas figuras y de acuerdo con la numeración adoptada, se puede observar en las mismas una realización preferente aunque no limitativa de la invención, la cual consiste en un dispositivo (1 ) de presión constituido por un depósito (3) o reservorio de gas a presión que presenta a su salida un regulador (4) de presión y una válvula (5) de corte, conectable a una máquina (2) neumática mediante una conexión (14), racor o enchufe rápido. La máquina (2) neumática comprende una válvula (6) de mando y un actuador (7), tal como un cilindro neumático, una turbina, una tobera o soplador u otro elemento de consumo neumático. En una alternativa de realización varios dispositivos (1 ) de presión pueden estar unidos con la máquina (2) neumática simultáneamente a través de un distribuidor (8) múltiple.DESCRIPTION OF A PREFERRED EMBODIMENT. In view of the aforementioned figures and in accordance with the numbering adopted, a preferred but not limiting embodiment of the invention can be observed therein, which consists of a pressure device (1) constituted by a reservoir (3) or Pressurized gas reservoir that has a pressure regulator (4) and a shut-off valve (5) at its outlet, which can be connected to a pneumatic machine (2) by means of a connection (14), fitting or quick plug. The pneumatic machine (2) comprises a control valve (6) and an actuator (7), such as a pneumatic cylinder, a turbine, a nozzle or blower or other pneumatic consumption element. In an alternative embodiment, several pressure devices (1) can be connected to the pneumatic machine (2) simultaneously through a manifold (8).
En un ejemplo de realización el dispositivo (1 ) comprende como válvula (5) de corte una válvula de obús con conexión automática a la máquina neumática cuando se enchufa.In one embodiment, the device (1) comprises as a shut-off valve (5) a howitzer valve with automatic connection to the pneumatic machine when it is plugged in.
En un ejemplo de constitución de una sierra portátil con pinza de sujeción de la barra o elemento a cortar comprende una bancada (9) y sobre ella la sierra (10) oscilante en un soporte, existiendo en dicha bancada (9) el dispositivo (1 ) de presión, relacionado con un cilindro (7) actuador sobre una pinza (11 ) o pistón de sujeción sobre dicha bancada (9), estando la válvula de mando (no representada) relacionada con la oscilación de la sierra (10) para su accionamiento automático.In an example of the constitution of a portable saw with a clamp for holding the bar or element to be cut, it comprises a bed (9) and on it the oscillating saw (10) on a support, the device (1) existing in said bed (9) ) of pressure, related to an actuator cylinder (7) on a caliper (11) or clamping piston on said bed (9), the control valve (not shown) being related to the oscillation of the saw (10) for its automatic drive
En un ejemplo de constitución de unas tijeras de poda neumáticas, las tijeras comprenden un cuerpo (12), asociado con una hoja (13) móvil de corte. En el interior del cuerpo (12) se encuentra el dispositivo (1) de presión, relacionado con una válvula (6) de mando de accionamiento directo por pulsador, el cual está conectado con una actuador (7), tal como un cilindro neumático cuyo vastago está unido con la hoja (13) móvil.In an example of constitution of pneumatic pruning shears, the scissors comprise a body (12), associated with a mobile cutting blade (13). Inside the body (12) is the pressure device (1), related to a direct-operated control valve (6) by button, which is connected to an actuator (7), such as a pneumatic cylinder whose rod is attached to the mobile blade (13).
En un ejemplo de constitución de un automatismo neumático portátil, comprende el dispositivo (1) asociado a un circuito lógico neumático para su accionamiento portátil. In an example of the constitution of a portable pneumatic automatism, it comprises the device (1) associated with a pneumatic logic circuit for its portable drive.

Claims

REIVINDICACIONES. 1.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, apto para el accionamiento de máquinas neumáticas o mecanismos neumáticos de éstas, caracterizado porque comprende un depósito (3) o reservorio de fluido a presión con su salida o escape conectado con un regulador (4) de presión y una válvula (5) de corte, acoplado al circuito neumático de una máquina (2) neumática o parcialmente neumática para su accionamiento de forma portátil y autónoma. CLAIMS. 1.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, suitable for the operation of pneumatic machines or pneumatic mechanisms thereof, characterized in that it comprises a reservoir (3) or reservoir of pressurized fluid with its outlet or exhaust connected to a pressure regulator (4) and a shut-off valve (5), coupled to the pneumatic circuit of a pneumatic or partially pneumatic machine (2) for its portable and autonomous operation.
2.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque la máquina (2) neumática o parcialmente neumática comprende una válvula (6) de mando relacionada con una actuador (7) neumático; y porque la válvula (6) de mando puede ser de accionamiento directo o indirecto, por cable, eléctrico, neumático o análogo; y porque el actuador (7) neumático puede ser un cilindro neumático, una turbina, una tobera, un circuito lógico neumático o cualquier otro. 2.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 1, characterized in that the pneumatic or partially pneumatic machine (2) comprises a control valve (6) related to a pneumatic actuator (7); and because the control valve (6) can be directly or indirectly operated, by cable, electric, pneumatic or the like; and because the pneumatic actuator (7) can be a pneumatic cylinder, a turbine, a nozzle, a pneumatic logic circuit or any other.
3.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque el fluido contenido en el depósito (3) es un gas termodinámico comprimido a muy alta presión, superior a la presión de trabajo suministrada por el regulador (4).3.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 1, characterized in that the fluid contained in the tank (3) is a thermodynamic gas compressed at very high pressure, higher than the working pressure supplied by the regulator (4) .
4.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque el fluido contenido en el depósito (3) es un gas licuado.4.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 1, characterized in that the fluid contained in the tank (3) is a liquefied gas.
5.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con las reivindicaciones 3 o 4, caracterizado porque el gas del depósito (3) puede contener una sustancia lubricante o aceite. 5. AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claims 3 or 4, characterized in that the gas in the tank (3) can contain a lubricating substance or oil.
6.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con las reivindicaciones 1 y 2, caracterizado porque comprende un distribuidor (8) de conexión de múltiples dispositivos (1) de presión con la máquina (2) neumática.6. AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claims 1 and 2, characterized in that it comprises a distributor (8) for connecting multiple pressure devices (1) with the pneumatic machine (2).
7.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque el regulador (4) de presión es de funcionamiento variable por el usuario, operativamente apto para variar la presión de trabajo a voluntad.7. AUTONOMOUS PNEUMATIC PRESSURE DEVICE, in accordance with claim 1, characterized in that the pressure regulator (4) is user-variable in operation, operatively capable of varying the working pressure at will.
8.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque el dispositivo (1 ) es total o parcialmente desechable.8. AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 1, characterized in that the device (1) is totally or partially disposable.
9.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 8, caracterizado porque el depósito (3) es desechable.9.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 8, characterized in that the reservoir (3) is disposable.
10.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque el dispositivo (1) es recargable; y porque el depósito (3) comprende un medio de recarga.10.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 1, characterized in that the device (1) is rechargeable; and because the tank (3) comprises a recharging means.
11.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 1 , caracterizado porque comprende una conexión (14) de acoplamiento de dicho dispositivo (1) con la máquina (2) desconectable para el cambio o recarga del depósito (3). 11.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 1, characterized in that it comprises a connection (14) for coupling said device (1) with the machine (2) disconnectable for changing or recharging the tank (3).
12.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 11 , caracterizado porque la conexión (14) es amovible para la retirada del dispositivo (1) de la máquina (2).12. AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 11, characterized in that the connection (14) is removable for the removal of the device (1) from the machine (2).
13.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con la reivindicación 11 , caracterizado porque comprende una válvula de obús con conexión automática como válvula (5) de corte y conexión (14) directa a la máquina (2) neumática. 13.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claim 11, characterized in that it comprises a howitzer valve with automatic connection as a cut-off valve (5) and direct connection (14) to the pneumatic machine (2).
14.- DISPOSTIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con las reivindicaciones anteriores, caracterizado porque en un ejemplo de realización de una sierra (10) oscilante con bancada (9) comprende el dispositivo (1 ) asociado con un actuador (7), tal como un cilindro neumático de una pinza (11 ) o pistón sobre dicha bancada (9), operativamente apto para sujetar la pieza a cortar en el descenso oscilante de la sierra (10).14.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, in accordance with the preceding claims, characterized in that in an embodiment of an oscillating saw (10) with bench (9) comprises the device (1) associated with an actuator (7), such as a pneumatic cylinder of a caliper (11) or piston on said bed (9), operatively suitable for holding the workpiece in the oscillating descent of the saw (10).
15.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con las reivindicaciones 1 a 13, caracterizado porque en un ejemplo de realización de una tijera (12 y 13) con accionamiento neumático comprende el dispositivo (1) asociado con un actuador (7), tal como un cilindro neumático de la hoja (13) móvil y una válvula (6) de mando de accionamiento directo por pulsador, operativamente apto para el accionamiento directo de la hoja (13) móvil.15.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claims 1 to 13, characterized in that in an exemplary embodiment of a scissor (12 and 13) with pneumatic actuation comprises the device (1) associated with an actuator (7), such as a pneumatic cylinder of the mobile leaf (13) and a valve (6) of direct actuation by push-button, operatively suitable for direct operation of the mobile leaf (13).
16.- DISPOSITIVO DE PRESIÓN NEUMÁTICA AUTÓNOMO, de conformidad con las reivindicaciones 1 a 13, caracterizado porque en un ejemplo de realización de un automatismo neumático, comprende el dispositivo (1 ) asociado a un circuito lógico neumático para su accionamiento portátil. 16.- AUTONOMOUS PNEUMATIC PRESSURE DEVICE, according to claims 1 to 13, characterized in that in an example of realization of a pneumatic automatism, it comprises the device (1) associated with a pneumatic logic circuit for its portable drive.
PCT/ES2004/000268 2003-06-19 2004-06-11 Autonomous pneumatic pressure device WO2004113027A1 (en)

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ES2222803B1 (en) 2006-02-01

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