WO2023150895A1 - A rotary adapter that uses an angle grinder as a straight grinder, providing greater versatility and preventing the adapter from overheating due to use and friction - Google Patents

A rotary adapter that uses an angle grinder as a straight grinder, providing greater versatility and preventing the adapter from overheating due to use and friction Download PDF

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Publication number
WO2023150895A1
WO2023150895A1 PCT/CL2022/050014 CL2022050014W WO2023150895A1 WO 2023150895 A1 WO2023150895 A1 WO 2023150895A1 CL 2022050014 W CL2022050014 W CL 2022050014W WO 2023150895 A1 WO2023150895 A1 WO 2023150895A1
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WO
WIPO (PCT)
Prior art keywords
bearing
adapter
central shaft
fixing
rotates
Prior art date
Application number
PCT/CL2022/050014
Other languages
Spanish (es)
French (fr)
Inventor
Josué Alejandro SALAS VERGARA
Original Assignee
Salas Vergara Josue Alejandro
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 Salas Vergara Josue Alejandro filed Critical Salas Vergara Josue Alejandro
Priority to PCT/CL2022/050014 priority Critical patent/WO2023150895A1/en
Publication of WO2023150895A1 publication Critical patent/WO2023150895A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • This utility model is related to the tool design and manufacturing industry.
  • the present invention relates to the hand tool industry, in particular it relates to a rotary adapter (100) that allows an angle grinder to be used with the function of a straight grinder, due to a rotary body adaptable to a grinder.
  • angular comprising a handle rotatably attached to said adaptable rotating body, through some bearings and joint protector, thus achieving a safe adapter for the operator since the operator can take said adapter while the center is turning without turning the outer body, which prevents the adapter from overheating due to friction, robust, with great mechanical resistance to the efforts imposed by the operator on said tool while it is being used, which can even exceed 40kg and also allows work to be carried out with greater precision.
  • Another advantage of this utility model is to move the cutting or grinding disc, in order to reach mechanical places that are unreachable with a traditional angle grinder and, in addition, this rotating adapter allows access to internal places of the pieces to be worked, which angle grinder without this adapter does not allow.
  • this rotating adapter allows access to internal places of the pieces to be worked, which angle grinder without this adapter does not allow.
  • it is possible to increase the versatility of the angle grinder and also at a low cost and improving transportability, since only one angle grinder must be transported with this adapter and it is not required to transport two different types of grinders.
  • the present technology is an adapter for using an angle grinder with the tools and versatility of a straight grinder.
  • the angle grinder is also known as an angle grinder, grinder or cookie cutter.
  • the straight grinder is also known as straight emery.
  • a rotary adapter (100) is presented that allows an angle grinder to be used with the function of a straight grinder, in a safe way for the operator, robust, firm, with greater precision and versatility and that avoids overheating. of the adapter due to wear and friction.
  • Figure 1 illustrates an exploded schematic view of a preferred configuration.
  • Figure 2 illustrates a schematic view of a central shaft (1), with bearings (11, 12, 15).
  • Figure 3 illustrates a schematic view of a preferred configuration of a swivel adapter (100).
  • Figure 4 illustrates a schematic view of another preferred configuration of the swivel adapter (100).
  • FIGS 5 and 6 illustrate schematic exploded views of the swivel adapter (100)!
  • Figure 7 illustrates an angle grinder of the prior art.
  • Figure 8 illustrates a prior art straight grinder.
  • the present utility model arose due to the need to use a straight grinder, which was under repair, in a job. From this situation, the need arose to design and have an adapter for an angle grinder that was available, obtaining as a result the adapter of this utility model and thereby achieving the same features of a straight grinder and even new features, accessibility improvements, and increased performance in numerous applications in the hand tool industry.
  • this utility model is related to a rotary adapter (100) that allows an angle grinder to be used with the function of a straight grinder, providing greater versatility, and avoiding overheating of the adapter for use and friction
  • the rotating adapter (100) comprises: a central shaft (1) that rotates on its axis (200) comprising: an external thread (4) at a distal end of the central shaft (1) , a cylinder with two opposite and parallel flat faces to fix the central shaft (1) following the external thread (4) in a proximal distal direction, a first bearing support (2) with its respective first fixing stop (20) following the cylinder (6) in a proximal distal direction; an internal thread (5) at a proximal end of the central shaft (1) for fixing to the angle grinder, a second bearing support (3) with its respective second fixing stop (30) after the internal thread (5 ) in a proximal distal direction of the central shaft (1); a first bearing (11) that rotates on the first bearing support (2); a second bearing (12)
  • distal and proximal relative directions will be understood as understood in relation to the angle grinder to which the rotary adapter (100) that is the subject of the present application is attached. utility model when it is normally in use.
  • proximal portion of rotary adapter (100) is that closest to the angle grinder, while the distal portion of rotary adapter (100) is that furthest from the angle grinder.
  • the rotary adapter (100) also includes an outer jacket (13) that is located above the inner jacket (8) by means of rings (16), to improve thermal insulation between the bearings that are the bearings.
  • the rotary adapter (100) includes fixing means (7, 7a, 7b) to couple cutting, grinding, drilling, milling tools, among others, where the fixing means is a vice. (7) or a cutting or grinding disc fixing accessory (7a, 7b), which are a set of lock nuts.
  • the rotating adapter (100) has a proximal protector (9), which prevents the user from touching the rotating elements.
  • the central shaft (1) has a length of between 60 mm and 250 mm. and the diameters of the inner sleeve (8), the outer sleeve (13) and the proximal protector (9) are in the range of 20 mm to 60 mm.
  • the bearings (11, 12 and 15), the inner sleeve (8), the outer sleeve (13), fixing means (7, 7a, 7b) are made of steel, stainless steel , aluminum, copper, bronze or alloys between them.
  • the outer jacket (13) and the inner jacket (8) comprise a handle section to improve grip by the operator, in addition the handle section is knurled.
  • the first bearing (11) and the second bearing (12) are ball bearings and the third bearing (15) is idler or needle bearing or the first bearing (11) and the second bearing (12) comprise separation baskets or cages. of balls.
  • the third idler or needle roller bearing (15) comprises an outer fixing structure.
  • the first bearing (11) and the second bearing (12) are ball bearings and the third bearing (15) are sealed bearings to prevent the entry of polluting elements.
  • it also includes some openings in the handle, not shown in the figures, which allow air flow into said adapter, through some blades, to keep the handle cool due to the friction that occurs in the bearings, which generates an increase in temperature.
  • the present rotating adapter (100) was used for an angle grinder to install a rotating sandpaper, which allowed finishing tubes, bushings, horns and bearing rests where the proper tolerance had to be modified in their internal diameters for optimal operation.
  • the present rotary adapter (100) was used on an angle grinder to install a grinding wheel to it, which a conventional straight grinder does not allow. This adaptation was useful for working larger parts, in this case in the bushing breaks of a backhoe. In the case of bushings on a backhoe, their shafts become oval from wear.
  • Such work, with a straight grinder takes much more time. Therefore, an angle grinder with this swivel adapter (100) allows greater versatility by allowing work in hard-to-reach places where a conventional straight grinder does not have access since its motor is located in a straight direction. Therefore, the straight grinder is much longer, which brings with it that limitation.
  • the angle grinder in conjunction with the swivel adapter (100) it is possible to make more torque during use against the work piece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The present invention relates to a rotary adapter (100) that enables an angle grinder to be used as a straight grinder, providing greater versatility and preventing the adapter from overheating due to use and friction, said adapter comprising: a central shaft (1) that rotates about its axis (200) comprising: an external threading (4) at a distal end of the central shaft (1), a cylinder with two opposite and parallel flat sides for fixing the central shaft (1) after the external threading (4) in a distal proximal direction, a first bearing support (2) with its respective first fixing stop (20) after the cylinder (6) in a distal proximal direction; an internal threading (5) at a proximal end of the central shaft (1) for fixing to the angle grinder, a second bearing support (3) with its respective second fixing stop (30) after the internal threading (5) in a proximal distal direction of the central shaft (1); a first bearing (11) that rotates on a first bearing support (2); a second bearing (12) that rotates on a second bearing support (3) after the second fixing stop (30); a third bearing (15) that rotates on a second bearing support (3); and an inner liner (8) that is assembled on the three bearings (11, 12 and 15), wherein said inner liner (8) is snapped on the third bearing (15) and prevents it from moving towards the proximal end, and a distal stop (14) that freely rotates on the first bearing (11).

Description

UN ADAPTADOR GIRATORIO QUE PERMITE USAR UNA AMOLADORA ANGULAR CON LA FUNCIÓN DE UNA AMOLADORA RECTA, ENTREGANDO UNA MAYOR VERSATILIDAD, Y QUE EVITA EL SOBRE CALENTAMIENTO DEL ADAPTADOR POR EL USO Y FRICCIÓNA ROTARY ADAPTER THAT ALLOWS USING AN ANGLE GRINDER WITH THE FUNCTION OF A STRAIGHT GRINDER, GIVING GREATER VERSATILITY, AND PREVENTING OVERHEATING OF THE ADAPTER DUE TO USE AND FRICTION
MEMORIA DESCRIPTIVA DESCRIPTIVE MEMORY
CAMPO DE LA INVENCIÓN FIELD OF THE INVENTION
El presente modelo de utilidad se relaciona con la industria del diseño y fabricación de herramientas. En particular, la presente invención se relaciona con la industria de las herramientas manuales, en especial se relaciona con un adaptador giratorio (100) que permite usar una amoladora angular con la función de una amoladora recta, debido a un cuerpo giratorio adaptable a una amoladora angular, que comprende un mango unido de manera giratoria con dicho cuerpo giratorio adaptable, a través de unos rodamientos y protector de unión, logrando con ello un adaptador seguro para el operario ya que el operario puede tomar dicho adaptador mientras está girando el centro sin girar el cuerpo exterior, que evita el recalentamiento del adaptador por fricción, robusto, con gran resistencia mecánica a los esfuerzos impuestos por el operador sobre dicha herramienta mientras se usa, que incluso puede superar los 40kg y también permite realizar trabajos con mayor precisión. This utility model is related to the tool design and manufacturing industry. In particular, the present invention relates to the hand tool industry, in particular it relates to a rotary adapter (100) that allows an angle grinder to be used with the function of a straight grinder, due to a rotary body adaptable to a grinder. angular, comprising a handle rotatably attached to said adaptable rotating body, through some bearings and joint protector, thus achieving a safe adapter for the operator since the operator can take said adapter while the center is turning without turning the outer body, which prevents the adapter from overheating due to friction, robust, with great mechanical resistance to the efforts imposed by the operator on said tool while it is being used, which can even exceed 40kg and also allows work to be carried out with greater precision.
Además, cuenta con las ventajas económicas de que se requiere de una amoladora angular y el adaptador del presente modelo de utilidad, para tener las funcionalidades y ventajas de una amoladora angular y una amoladora recta en un único dispositivo. Dicho de otra manera, es posible obtener dos dispositivos en uno, lo que es relevante para trabajos en terreno o en obra. In addition, it has the economic advantages that an angle grinder and the adapter of this utility model are required, in order to have the functionalities and advantages of an angle grinder and a straight grinder in a single device. In other words, it is possible to obtain two devices in one, which is relevant for works in the field or on site.
Otra ventaja del presente modelo de utilidad es desplazar el disco de corte o de desbaste, para lograr llegar a lugares mecánicos inalcanzables con una amoladora angular tradicional y además, este adaptador giratorio permite el acceso a lugares internos de las piezas a trabajar, lo que una amoladora angular sin este adaptador no lo permite. Es decir, es posible aumentar la versatilidad a la amoladora angular y además con un bajo costo y mejorando la transportabilidad, ya que solo se debe de transportar una amoladora angular con el presente adaptador y no se requiere trasportar dos tipos de amoladoras diferentes. ESTADO DEL ARTE Another advantage of this utility model is to move the cutting or grinding disc, in order to reach mechanical places that are unreachable with a traditional angle grinder and, in addition, this rotating adapter allows access to internal places of the pieces to be worked, which angle grinder without this adapter does not allow. In other words, it is possible to increase the versatility of the angle grinder and also at a low cost and improving transportability, since only one angle grinder must be transported with this adapter and it is not required to transport two different types of grinders. STATE OF THE ART
Actualmente, la industria de las herramientas manuales presenta el inconveniente de la falta de flexibilidad de uso de una misma herramienta que cumpla otras funciones sin perder su fiabilidad y robustez, características necesarias y mínimas para el trabajo cotidiano en talleres mecánicos, maestranzas, entre otros lugares productivos o de reparación de maquinaria. Más específicamente, la presente tecnología es un adaptador para usar una amoladora angular con las herramientas y versatilidad de una amoladora recta. Cabe de destacar que la amoladora angular también es conocida como esmeril angular, esmeriladora o galletera. Por otro lado, la amoladora recta también es conocido como esmeril recto. Currently, the hand tool industry presents the drawback of the lack of flexibility in the use of the same tool that fulfills other functions without losing its reliability and robustness, necessary and minimum characteristics for daily work in mechanical workshops, workshops, among other places. production or machinery repair. More specifically, the present technology is an adapter for using an angle grinder with the tools and versatility of a straight grinder. It should be noted that the angle grinder is also known as an angle grinder, grinder or cookie cutter. On the other hand, the straight grinder is also known as straight emery.
En el estado del arte se han encontrado diversas soluciones, que resuelven de manera parcial el problema técnico planteado. Dentro de lo conocido está el documento DE29716061 U1 que divulga un adaptador para amoladora angular que permite colocarle piedras de desbaste, utilizadas en las amoladoras rectas, pero se diferencia en que no se puede tomar el adaptador, ya que esta gira completamente de manera solidaria con dicha piedra de desgaste y el motor de la amoladora. Dicho de otra manera, el operario no puede tomar de manera firme el adaptador debido a que gira todo el adaptador y si el operador llegase a apoyarse en el adaptador del documento DE29716061 U1 se quemaría por el efecto de la fricción entre el adaptador y la mano o el adaptador y el guante, ya que la velocidad de giro de una amoladora angular generalmente gira entre 1 .800 a 7.700 RPM las eléctricas y las neumáticas incluso llegan a 11 .000 RPM. Various solutions have been found in the state of the art, which partially solve the technical problem posed. Within what is known is the document DE29716061 U1 that discloses an adapter for an angle grinder that allows you to place roughing stones, used in straight grinders, but it differs in that the adapter cannot be taken, since it rotates completely in solidarity with said wear stone and grinder motor. In other words, the operator cannot take the adapter firmly because the entire adapter rotates and if the operator were to lean on the adapter of the document DE29716061 U1, he would burn due to the effect of friction between the adapter and the hand. or the adapter and the glove, since the speed of rotation of an angle grinder generally rotates between 1,800 to 7,700 RPM, electric and pneumatic ones even reach 11,000 RPM.
También se han encontrado en el estado del arte, otras soluciones tales como un adaptador de mandril de taladro para amoladora angular lo que también tiene el inconveniente de que el mandril de taladro gira de manera solidaria con el motor de la amoladora angular lo que tampoco permite al operario tomar de manera firme el adaptador debido a que gira todo el adaptador. SOLUCIÓN AL PROBLEMA TÉCNICO Other solutions have also been found in the state of the art, such as a drill chuck adapter for an angle grinder, which also has the drawback that the drill chuck rotates jointly with the angle grinder motor, which also does not allow the operator to firmly grasp the adapter because it rotates the entire adapter. SOLUTION TO THE TECHNICAL PROBLEM
Para subsanar el problema planteado, se presenta un adaptador giratorio (100) que permite usar una amoladora angular con la función de una amoladora recta, de manera segura para el operador, robusta, firme, con mayor precisión y versatilidad y que evita el sobre calentamiento del adaptador por el uso y fricción. To solve the problem, a rotary adapter (100) is presented that allows an angle grinder to be used with the function of a straight grinder, in a safe way for the operator, robust, firm, with greater precision and versatility and that avoids overheating. of the adapter due to wear and friction.
DESCRIPCIÓN DE LAS FIGURAS DESCRIPTION OF THE FIGURES
La figura 1 , ¡lustra una vista esquemática en despiece de una configuración preferente. Figure 1 illustrates an exploded schematic view of a preferred configuration.
La figura 2, ¡lustra una vista esquemática de un árbol central (1 ), con los rodamientos (11 , 12, 15). Figure 2 illustrates a schematic view of a central shaft (1), with bearings (11, 12, 15).
La figura 3, ¡lustra una vista esquemática de una configuración preferente de un adaptador giratorio (100). Figure 3 illustrates a schematic view of a preferred configuration of a swivel adapter (100).
La figura 4, ¡lustra una vista esquemática de otra configuración preferente de del adaptador giratorio (100). Figure 4 illustrates a schematic view of another preferred configuration of the swivel adapter (100).
Las figuras 5 y 6, ¡lustran vistas esquemáticas explosionadas del adaptador giratorio (100) Figures 5 and 6 illustrate schematic exploded views of the swivel adapter (100)!
La figura 7, ¡lustra una amoladora angular del arte previo. Figure 7 illustrates an angle grinder of the prior art.
La figura 8, ¡lustra una amoladora recta del arte previo. Figure 8 illustrates a prior art straight grinder.
DESCRIPCION DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
El presente modelo de utilidad surgió debido a la necesidad de usar una amoladora recta, la cual se encontraba en reparación, en un trabajo. A partir de dicha situación, surgió la necesidad de diseñar y contar con un adaptador para una amoladora angular que se encontraba disponible, obteniendo como resultado el adaptador del presente modelo de utilidad y logrando con ello las mismas prestaciones de una amoladora recta e inclusive nuevas funciones, mejoras en la accesibilidad y aumento del rendimiento en numerosas aplicaciones en la industria de las herramientas manuales. The present utility model arose due to the need to use a straight grinder, which was under repair, in a job. From this situation, the need arose to design and have an adapter for an angle grinder that was available, obtaining as a result the adapter of this utility model and thereby achieving the same features of a straight grinder and even new features, accessibility improvements, and increased performance in numerous applications in the hand tool industry.
Como se muestra en las figuras 1 a 6, el presente modelo de utilidad se relaciona con un adaptador giratorio (100) que permite usar una amoladora angular con la función de una amoladora recta, entregando una mayor versatilidad, y que evita el sobre calentamiento del adaptador por el uso y fricción, en donde el adaptador giratorio (100) comprende: un árbol central (1) que gira sobre su eje (200) que comprende: una rosca exterior (4) en un extremo distal del árbol central (1), un cilindro con dos caras planas opuestas y paralelas para fijar el árbol central (1 ) a continuación de la rosca exterior (4) en sentido distal proximal, un primer soporte de rodamiento (2) con su respectivo primer tope de fijación (20) a continuación del cilindro (6) en sentido distal proximal; una rosca interior (5) en un extremo proximal del árbol central (1) para la fijación a la amoladora angular, un segundo soporte de rodamiento (3) con su respectivo segundo tope de fijación (30) a continuación de la rosca interior (5) en sentido proximal distal del árbol central (1); un primer rodamiento (11) que gira sobre primer soporte de rodamiento (2); un segundo rodamiento (12) que gira sobre segundo soporte de rodamiento (3) a continuación del segundo tope de fijación (30); un tercer rodamiento (15) que gira sobre segundo soporte de rodamiento (3); y una camisa interior (8) que se monta sobre los tres rodamientos (11 , 12 y 15), en donde dicha camisa interior (8) se fija a presión con el tercer rodamiento (15) y evita su desplazamiento hacia el extremo proximal, y un tope distal (14) que gira libremente sobre el primer rodamiento (11 ). En el contexto de la presente solicitud, sin que esto limite el alcance de la misma, se entenderán las direcciones relativas distal y proximal como entendidas en relación a la amoladora angular a la cual se acopla el adaptador giratorio (100) que es objeto del presente modelo de utilidad cuando el mismo se encuentra normalmente en uso. En este sentido, se entenderá que la porción proximal del adaptador giratorio (100) es aquella más cercana a la amoladora angular, mientras que la porción distal del adaptador giratorio (100) es aquella más alejada de la amoladora angular. As shown in figures 1 to 6, this utility model is related to a rotary adapter (100) that allows an angle grinder to be used with the function of a straight grinder, providing greater versatility, and avoiding overheating of the adapter for use and friction, wherein the rotating adapter (100) comprises: a central shaft (1) that rotates on its axis (200) comprising: an external thread (4) at a distal end of the central shaft (1) , a cylinder with two opposite and parallel flat faces to fix the central shaft (1) following the external thread (4) in a proximal distal direction, a first bearing support (2) with its respective first fixing stop (20) following the cylinder (6) in a proximal distal direction; an internal thread (5) at a proximal end of the central shaft (1) for fixing to the angle grinder, a second bearing support (3) with its respective second fixing stop (30) after the internal thread (5 ) in a proximal distal direction of the central shaft (1); a first bearing (11) that rotates on the first bearing support (2); a second bearing (12) that rotates on a second bearing support (3) after the second fixing stop (30); a third bearing (15) that rotates on a second bearing support (3); and an inner sleeve (8) that is mounted on the three bearings (11, 12 and 15), wherein said inner sleeve (8) is fixed under pressure with the third bearing (15) and prevents its displacement towards the proximal end, and a distal stop (14) that rotates freely on the first bearing (11). In the context of the present application, without this limiting the scope of the same, the distal and proximal relative directions will be understood as understood in relation to the angle grinder to which the rotary adapter (100) that is the subject of the present application is attached. utility model when it is normally in use. In this regard, it will be understood that the proximal portion of rotary adapter (100) is that closest to the angle grinder, while the distal portion of rotary adapter (100) is that furthest from the angle grinder.
En una configuración preferente, el adaptador giratorio (100) además comprende una camisa exterior (13) que se ubica por sobre la camisa interior (8) por medio de unos anillos (16), para mejorar la aislación térmica entre los rodamientos que son los elementos de fricción y el operario, en donde los anillos (16) son de teflón, o de material polimérico, tal como: goma, plástico, PVC, HDPE, PET entre otros o mezcla de ellos. In a preferred configuration, the rotary adapter (100) also includes an outer jacket (13) that is located above the inner jacket (8) by means of rings (16), to improve thermal insulation between the bearings that are the bearings. Friction elements and the operator, where the rings (16) are made of Teflon, or polymeric material, such as: rubber, plastic, PVC, HDPE, PET, among others, or a mixture of them.
En otra configuración preferente, el adaptador giratorio (100) comprende unos medios de fijación (7, 7a, 7b) para acoplar herramientas de corte, de desbaste, de perforación, de fresado, entre otras, en donde el medio de fijación es una mordaza (7) o un accesorio de fijación de disco (7a, 7b) de corte o desbaste, que son un juego de tuercas de bloqueo. In another preferred configuration, the rotary adapter (100) includes fixing means (7, 7a, 7b) to couple cutting, grinding, drilling, milling tools, among others, where the fixing means is a vice. (7) or a cutting or grinding disc fixing accessory (7a, 7b), which are a set of lock nuts.
En otra configuración preferente, el adaptador giratorio (100) un protector proximal (9), que evita tocar los elementos giratorios al usuario. In another preferred configuration, the rotating adapter (100) has a proximal protector (9), which prevents the user from touching the rotating elements.
El árbol central (1 ) comprende un largo de entre 60 mm a 250 mm. y los diámetros de la camisa interior (8), la camisa exterior (13) y el protector proximal (9) se encuentran en el rango de entre 20 mm a 60 mm. En donde el árbol central (1), los rodamientos (11 , 12 y 15), la camisa interior (8), la camisa exterior (13), medios de fijación (7, 7a, 7b) son fabricados de acero, acero inoxidable, aluminio, cobre, broce o aleaciones entre ellos. The central shaft (1) has a length of between 60 mm and 250 mm. and the diameters of the inner sleeve (8), the outer sleeve (13) and the proximal protector (9) are in the range of 20 mm to 60 mm. Where the central shaft (1), the bearings (11, 12 and 15), the inner sleeve (8), the outer sleeve (13), fixing means (7, 7a, 7b) are made of steel, stainless steel , aluminum, copper, bronze or alloys between them.
En otra configuración preferente, la camisa exterior (13) y la camisa interior (8) comprenden una sección de empuñadura para mejorar el agarre por parte del operario, además la sección de empuñadura es moleteada. El primer rodamiento (11) y el segundo rodamiento (12) son de bolas y el tercer rodamiento (15) es de polín o de aguja o el primer rodamiento (11 ) y el segundo rodamiento (12) comprenden unos canastillos o jaulas de separación de bolas. Además, el tercer rodamiento (15) de polín o de aguja comprende una estructura exterior de fijación. En otra configuración preferente, el primer rodamiento (11 ) y el segundo rodamiento (12) son de bolas y el tercer rodamiento (15) son rodamientos sellados para impedir el ingreso de elementos contaminantes. In another preferred configuration, the outer jacket (13) and the inner jacket (8) comprise a handle section to improve grip by the operator, in addition the handle section is knurled. The first bearing (11) and the second bearing (12) are ball bearings and the third bearing (15) is idler or needle bearing or the first bearing (11) and the second bearing (12) comprise separation baskets or cages. of balls. In addition, the third idler or needle roller bearing (15) comprises an outer fixing structure. In another preferred configuration, the first bearing (11) and the second bearing (12) are ball bearings and the third bearing (15) are sealed bearings to prevent the entry of polluting elements.
Además, en una configuración preferente, además comprende unas aberturas en el mango, no mostradas en las figuras, que permiten un flujo de aire al interior de dicho adaptador, a través de unos álabes, para mantener fresco el mango debido al roce que se produce en los rodamientos lo que genera un aumento de temperatura. In addition, in a preferred configuration, it also includes some openings in the handle, not shown in the figures, which allow air flow into said adapter, through some blades, to keep the handle cool due to the friction that occurs in the bearings, which generates an increase in temperature.
EJEMPLOS DE APLICACIÓN APPLICATION EXAMPLES
A continuación, se expondrán ejemplos de aplicación del presente modelo de utilidad. Dichos ejemplos se proporcionan solo a modo ilustrativo para proporcionar un mejor entendimiento de la invención, pero en ningún caso debe considerarse que limiten el alcance de la protección solicitada. Adicionalmente, especificaciones de características técnicas diferentes descritas en los ejemplos pueden combinarse entre sí, o con otras características técnicas previamente descritas, sin que esto limite el alcance de la protección solicitada. Next, examples of application of this utility model will be presented. Said examples are provided for illustrative purposes only to provide a better understanding of the invention, but in no way should they be considered as limiting the scope of the requested protection. Additionally, specifications of different technical characteristics described in the examples can be combined with each other, or with other previously described technical characteristics, without this limiting the scope of the requested protection.
EJEMPLO 1. EXAMPLE 1.
Se usó el presente adaptador giratorio (100) a una amoladora angular para instalarle una lija giratoria, lo que permitió dar terminaciones a tubos, bujes, bocinas y descansos de rodamiento donde en sus diámetros interiores se debía modificar la tolerancia adecuada para su funcionamiento óptimo. The present rotating adapter (100) was used for an angle grinder to install a rotating sandpaper, which allowed finishing tubes, bushings, horns and bearing rests where the proper tolerance had to be modified in their internal diameters for optimal operation.
Además, al trabajar con la amoladora angular con el adaptador giratorio (100) se logra usar la ventaja del mayor torque de dicha amoladora angular, respecto de las amoladoras rectas, lo que permite poder aplicar mucha más presión sobre la pieza a desgastar optimizando el tiempo de trabajo. EJEMPLO 2. In addition, when working with the angle grinder with the rotating adapter (100) it is possible to use the advantage of the greater torque of said angle grinder, compared to straight grinders, which allows much more pressure to be applied on the piece to be worn, optimizing the time of work. EXAMPLE 2.
Se usó el presente adaptador giratorio (100) a una amoladora angular para instalarle un disco de desbaste, lo cual no permite una amoladora recta convencional. Esta adaptación fue útil para trabajar piezas más grandes, en este caso en los descansos de los bujes de una retro excavadora. En el caso de los bujes en una retro excavadora, sus ejes se ovalan por el desgaste. Lo anterior redunda en que es necesario agrandar el diámetro del cuerpo de la máquina para adaptarle bujes sobre medida y dejar los diámetros originales en buen estado. Dicho trabajo, con una amoladora recta, toma mucho más tiempo. Por lo tanto, una amoladora angular con este adaptador giratorio (100), permite una mayor versatilidad por permite trabajar en lugares de difícil acceso en donde una amoladora recta convencional no tiene acceso ya que su motor está situado en dirección recta. Por tanto, la amoladora recta es mucho más larga, lo que conlleva esa limitante. Además, con la amoladora angular en conjunto con el adaptador giratorio (100) se permite hacer más torque durante su uso contra la pieza a trabajar. The present rotary adapter (100) was used on an angle grinder to install a grinding wheel to it, which a conventional straight grinder does not allow. This adaptation was useful for working larger parts, in this case in the bushing breaks of a backhoe. In the case of bushings on a backhoe, their shafts become oval from wear. The foregoing results in the need to enlarge the diameter of the body of the machine to adapt custom bushings and leave the original diameters in good condition. Such work, with a straight grinder, takes much more time. Therefore, an angle grinder with this swivel adapter (100) allows greater versatility by allowing work in hard-to-reach places where a conventional straight grinder does not have access since its motor is located in a straight direction. Therefore, the straight grinder is much longer, which brings with it that limitation. In addition, with the angle grinder in conjunction with the swivel adapter (100) it is possible to make more torque during use against the work piece.
Para facilitar la comprensión de la tecnología se muestra a continuación una lista de partes: To facilitate the understanding of the technology, a list of parts is shown below:
Árbol central (1) Central shaft (1)
Primer soporte de rodamiento (2) First bearing support (2)
Segundo soporte de rodamiento (3) Second bearing support (3)
Rosca exterior (4) External thread (4)
Rosca interior (5) Internal thread (5)
Cilindro (6) cylinder (6)
Mordaza (7) Jaw (7)
Accesorio de fijación de disco (7a, 7b) Disc fixing accessory (7a, 7b)
Camisa interior (8) Protector proximal (9) Primer rodamiento (11) Segundo rodamiento (12) Camisa exterior (13) Tope distal (14) Tercer rodamiento (15) Anillos (16) Primer tope de fijación (20) Segundo tope de fijación (30)Inner sleeve (8) Proximal protector (9) First bearing (11) Second bearing (12) Outer sleeve (13) Distal stop (14) Third bearing (15) Rings (16) First fixation stop (20) Second fixing stop (30)
Adaptador giratorio (100)Swivel Adapter (100)
Eje (200) Shaft (200)

Claims

REIVINDICACIONES - Un adaptador giratorio (100) que permite usar una amoladora angular con la función de una amoladora recta, entregando una mayor versatilidad, y que evita el sobre calentamiento del adaptador por el uso y fricción, CARACTERIZADO porque comprende: un árbol central (1) que gira sobre su eje (200) que comprende: una rosca exterior (4) en un extremo distal del árbol central (1 ), un cilindro con dos caras planas opuestas y paralelas para fijar el árbol central (1) a continuación de la rosca exterior (4) en sentido distal proximal, un primer soporte de rodamiento (2) con su respectivo primer tope de fijación (20) a continuación del cilindro (6) en sentido distal proximal; una rosca interior (5) en un extremo proximal del árbol central (1 ) para la fijación a la amoladora angular, un segundo soporte de rodamiento (3) con su respectivo segundo tope de fijación (30) a continuación de la rosca interior (5) en sentido proximal distal del árbol central (1); un primer rodamiento (11 ) que gira sobre primer soporte de rodamiento (2); un segundo rodamiento (12) que gira sobre segundo soporte de rodamiento (3) a continuación del segundo tope de fijación (30); un tercer rodamiento (15) que gira sobre segundo soporte de rodamiento (3); y una camisa interior (8) que se monta sobre los tres rodamientos (11 , 12 y 15), en donde dicha camisa interior (8) se fija a presión con el tercer rodamiento (15) y evita su desplazamiento hacia el extremo proximal, y un tope distal (14) que gira libremente sobre el primer rodamiento (11). - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque además comprende una camisa exterior (13) que se ubica por sobre la camisa interior (8) por medio de unos anillos (16), para mejorar la aislación térmica entre los rodamientos que son los elementos de fricción y el operario. - El adaptador giratorio (100) de acuerdo con la reivindicación 2, CARACTERIZADO porque los anillos (16) son de teflón, o de material polimérico, tal como: goma, plástico, PVC, HDPE, PET entre otros o mezcla de ellos. - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque comprende unos medios de fijación (7, 7a, 7b) para acoplar herramientas de corte, de desbaste, de perforación, de fresado, entre otras. - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque el medio de fijación es una mordaza (7). - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque los medios de fijación son un accesorio de fijación de disco (7a, 7b) de corte o desbaste, que son un juego de tuercas de bloqueo. - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque comprende un protector proximal (9), que evita tocar los elementos giratorios al usuario. - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque el árbol central (1 ) comprende un largo de entre 60 mm a 250 mm. - El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque los diámetros de la camisa interior (8), la camisa exterior (13) y el protector proximal (9) se encuentran en el rango de entre 20 mm a 60 mm. 0- El adaptador giratorio (100) de acuerdo con la reivindicación 1 , 2 y 4, CARACTERIZADO porque el árbol central (1), los rodamientos (11 , 12 y 15), la camisa interior (8), la camisa exterior (13), medios de fijación (7, 7a, 7b) son fabricados de acero, acero inoxidable, aluminio, cobre, broce o aleaciones entre ellos. 1- El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque la camisa exterior (13) y la camisa interior (8) comprenden una sección de empuñadura para mejorar el agarre por parte del operario. 2- El adaptador giratorio (100) de acuerdo con la reivindicación 11 , CARACTERIZADO porque la sección de empuñadura es moleteada. 13- El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque el primer rodamiento (11) y el segundo rodamiento (12) son de bolas y el tercer rodamiento (15) es de polín o de aguja. CLAIMS - A rotary adapter (100) that allows an angle grinder to be used with the function of a straight grinder, providing greater versatility, and that prevents overheating of the adapter due to use and friction, CHARACTERIZED in that it comprises: a central shaft (1 ) that rotates on its axis (200) comprising: an external thread (4) at a distal end of the central shaft (1), a cylinder with two opposite and parallel flat faces to fix the central shaft (1) after the external thread (4) in a proximal distal direction, a first bearing support (2) with its respective first fixing stop (20) following the cylinder (6) in a proximal distal direction; an internal thread (5) at a proximal end of the central shaft (1) for fixing to the angle grinder, a second bearing support (3) with its respective second fixing stop (30) after the internal thread (5 ) in a proximal distal direction of the central shaft (1); a first bearing (11) that rotates on the first bearing support (2); a second bearing (12) that rotates on a second bearing support (3) after the second fixing stop (30); a third bearing (15) that rotates on a second bearing support (3); and an inner sleeve (8) that is mounted on the three bearings (11, 12 and 15), wherein said inner sleeve (8) is fixed under pressure with the third bearing (15) and prevents its displacement towards the proximal end, and a distal stop (14) that rotates freely on the first bearing (11). - The rotary adapter (100) according to claim 1, CHARACTERIZED in that it also comprises an outer jacket (13) that is located above the inner jacket (8) by means of rings (16), to improve thermal insulation between the bearings that are the friction elements and the operator. - The swivel adapter (100) according to claim 2, CHARACTERIZED in that the rings (16) are made of Teflon, or polymeric material, such as: rubber, plastic, PVC, HDPE, PET, among others, or a mixture of them. - The rotary adapter (100) according to claim 1, CHARACTERIZED in that it comprises fixing means (7, 7a, 7b) to couple cutting, grinding, drilling, milling tools, among others. - The swivel adapter (100) according to claim 1, CHARACTERIZED in that the fixing means is a clamp (7). - The rotary adapter (100) according to claim 1, CHARACTERIZED in that the fixing means are a cutting or grinding disc fixing accessory (7a, 7b), which are a set of lock nuts. - The rotating adapter (100) according to claim 1, CHARACTERIZED in that it comprises a proximal protector (9), which prevents the user from touching the rotating elements. - The swivel adapter (100) according to claim 1, CHARACTERIZED in that the central shaft (1) has a length of between 60 mm and 250 mm. - The rotary adapter (100) according to claim 1, CHARACTERIZED in that the diameters of the inner sleeve (8), the outer sleeve (13) and the proximal protector (9) are in the range of between 20 mm to 60 mm. 0- The swivel adapter (100) according to claim 1, 2 and 4, CHARACTERIZED in that the central shaft (1), the bearings (11, 12 and 15), the inner sleeve (8), the outer sleeve (13 ), fixing means (7, 7a, 7b) are made of steel, stainless steel, aluminum, copper, bronze or alloys between them. 1- The swivel adapter (100) according to claim 1, CHARACTERIZED in that the outer jacket (13) and the inner jacket (8) comprise a handle section to improve grip by the operator. 2- The swivel adapter (100) according to claim 11, CHARACTERIZED in that the handle section is knurled. 13- The swivel adapter (100) according to claim 1, CHARACTERIZED in that the first bearing (11) and the second bearing (12) are ball bearings and the third bearing (15) is idler or needle bearing.
14- El adaptador giratorio (100) de acuerdo con la reivindicación 13, CARACTERIZADO porque el primer rodamiento (11 ) y el segundo rodamiento (12) comprenden unos canastillos o jaulas de separación de bolas. 14- The swivel adapter (100) according to claim 13, CHARACTERIZED in that the first bearing (11) and the second bearing (12) comprise baskets or ball separation cages.
15- El adaptador giratorio (100) de acuerdo con la reivindicación 13, CARACTERIZADO porque el tercer rodamiento (15) de polín o de aguja comprende una estructura exterior de fijación. 16- El adaptador giratorio (100) de acuerdo con la reivindicación 1 , CARACTERIZADO porque el primer rodamiento (11) y el segundo rodamiento (12) son de bolas y el tercer rodamiento (15) son rodamientos sellados para impedir el ingreso de elementos contaminantes. 15- The swivel adapter (100) according to claim 13, CHARACTERIZED in that the third idler or needle roller bearing (15) comprises an external fixing structure. 16- The swivel adapter (100) according to claim 1, CHARACTERIZED in that the first bearing (11) and the second bearing (12) are ball bearings and the third bearing (15) are sealed bearings to prevent the entry of contaminants .
PCT/CL2022/050014 2022-02-11 2022-02-11 A rotary adapter that uses an angle grinder as a straight grinder, providing greater versatility and preventing the adapter from overheating due to use and friction WO2023150895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CL2022/050014 WO2023150895A1 (en) 2022-02-11 2022-02-11 A rotary adapter that uses an angle grinder as a straight grinder, providing greater versatility and preventing the adapter from overheating due to use and friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CL2022/050014 WO2023150895A1 (en) 2022-02-11 2022-02-11 A rotary adapter that uses an angle grinder as a straight grinder, providing greater versatility and preventing the adapter from overheating due to use and friction

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3241698A1 (en) * 1982-11-11 1984-05-17 Wolfgang 2091 Handorf Schmidt Angle grinding machine
DE4118737A1 (en) * 1990-06-15 1992-01-30 Folke Werner DRILL GRINDING DEVICE WITH DRILL DRIVE
DE29513751U1 (en) * 1995-08-26 1996-02-15 Schaefer Horst Collet for standard angle grinders
AU696295B3 (en) * 1998-03-17 1998-09-03 David Michael Walker Die grinder attachment
CN203843644U (en) * 2014-04-28 2014-09-24 朱经纬 Power-driven long-neck angle grinder
KR20150030021A (en) * 2013-09-11 2015-03-19 정경옥 Portable electric angle grinder for using extended head part

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3241698A1 (en) * 1982-11-11 1984-05-17 Wolfgang 2091 Handorf Schmidt Angle grinding machine
DE4118737A1 (en) * 1990-06-15 1992-01-30 Folke Werner DRILL GRINDING DEVICE WITH DRILL DRIVE
DE29513751U1 (en) * 1995-08-26 1996-02-15 Schaefer Horst Collet for standard angle grinders
AU696295B3 (en) * 1998-03-17 1998-09-03 David Michael Walker Die grinder attachment
KR20150030021A (en) * 2013-09-11 2015-03-19 정경옥 Portable electric angle grinder for using extended head part
CN203843644U (en) * 2014-04-28 2014-09-24 朱经纬 Power-driven long-neck angle grinder

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