MXPA99007068A - Method and assembly of axis of mo - Google Patents

Abstract

The present invention relates to a method for assembling a motor shaft with a set of motor components, the method comprising the steps of: loosening a portion of the motor shaft, inserting the motor component assembly, comprising a separator keyed and a motor component, on the motor shaft, and press an extension on the spindle motor shaft with the motor component assembly, where the extension extends axially beyond the end of the motor shaft.

Description

METHOD AND ENGINE AXIS ASSEMBLY Technical Field The present invention relates to engines, and more particularly to a method of assembling an engine and associated components so that the engine is capable of activating an apparatus placed at a significant distance from the engine. Prior Art In situations of motor assembly, it is commonly necessary to assemble a motor shaft in a motor housing. Additionally, it is generally necessary to attach a component to the motor shaft after the motor shaft and the motor housing are assembled. In many applications, it is also necessary for an engine to activate an apparatus placed at a significant distance from the engine. A method of assembling a motor shaft in a motor shaft includes the step of installing a retaining ring in a groove in the motor shaft. The retaining ring serves as a holder for a bearing that is pressed into the motor shaft. The motor shaft and associated components are installed in the motor housing with one end of the shaft protruding from the housing. Then, a cylindrical separator is fitted on the shaft next to the bearing and protrudes from the motor housing. A first washer slides on the protruding end of the shaft and splices the cylindrical separator. In certain applications a component, such as an impeller, can also be slid on the protruding end of the splicing shaft with the first washer. A second washer is placed on the motor shaft to place the component between two washers. Then, a hexagonal nut is screwed into the end of the projecting shaft to hold all the components on the shaft together in an axial direction against the retaining ring. The threaded nut serves to apply pressure to the washers, which in turn hold the impeller to ensure that the impeller rotates as the motor shaft rotates. For applications where the motor is used to activate an apparatus placed at a significant distance from the motor, a shaft extension is commonly screwed into the end of the motor shaft. The shaft extension is coupled to the apparatus in any suitable manner. The methods described above have disadvantages. When operating an engine that has a long shaft, the torsion forces create eccentric twists and whips that create noise and vibration during engine operation, this problem is complicated when using a threaded shaft extension. The installation of the threaded shaft extension on the motor shaft generally causes misalignment between the shaft extension and the motor shaft. Brief Description of the Invention The present invention is contained in a method of assembling a motor shaft with a set of motor components. The method includes the steps of misaligning a portion of the motor shaft, inserting the motor component set, comprising a keyed spacer and a motor component on the shaft, and pressing an extension on the splice shaft with the set of components the motor. Additionally, the engine component assembly includes a keyed washer disposed between the engine component and the extension. The extension includes a tube that extends beyond the end of the motor shaft when a first end of the tube is in splice with the set of motor components. The method of the present invention further includes the step of pressing a shaft extension into a second end of the tube. In accordance with the present invention, the extension includes a metal shaft having a first recess for accommodating the motor shaft and a second recess. The motor component includes an impeller. In accordance with another aspect of the present invention, a method for assembling a motor shaft with a motor component is disclosed. The method includes the steps of fitting a first end of an axle extension to one end of the motor shaft, adjusting a fastener in the motor shaft, and installing a second end of the axle extension in a lower assembly. Other objects and advantages of the present invention will be apparent from the specification and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 comprises a fractional elevated view, partially in section, of a motor assembly assembled in accordance with an embodiment of the present invention.; Figure 2 comprises an exploded perspective view of the motor assembly of Figure 1; Figure 3 comprises a fractional elevated view, partly in section, of a motor assembly comprising a tube that couples an extension on the motor shaft; Figure 4 comprises a fractional elevated view, partially in section, of an alternative embodiment of a motor assembly comprising a clamping nut and a hexagonal shaft extension; Figure 5 comprises a fractional elevated view, partially in section, of an alternative embodiment of an engine assembly comprising a clamping nut and a flexible shaft; Figure 6, comprises a fractional elevated view, partially in section, of an alternative embodiment of an engine assembly comprising a clamping nut attached to a flexible shaft extension. DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to Figures 1 and 2, there is shown an engine assembly 10 constructed using the method of the present invention, the engine assembly 10 comprising a motor shaft 15, a bearing 20 and a spacer 25. placed between the first and second misaligned portions 30, 35, an actuator washer 40, an impeller 45, a second washer 50, a motor shaft extension 55, and a motor housing 60. It should be noted that the impeller 45 is You can replace any other suitable component. Additionally, the motor assembly comprises a second driver 62 disposed in a housing 64. Alternatively, the second driver 64 can be replaced with any suitable component. After the first misadjusted portion 30 is formed on the shaft 15, the bearing assembly 20 and the spacer 25 are pressed on the shaft 15. The second misadjusted portion 35 is created on the opposite side of the bearing assembly 20 and the spacer 25 as the first mismatched portion 30. The shaft 15 complete with the first and second misaligned portions 30, 35, the bearing assembly 20 and the spacer 25, is inserted into the motor housing 60. Subsequently, the actuating washer 40 having Three lugs are placed on the shaft 15, the lugs are far from the motor housing. The actuating washer 40 is keyed to fit into the mismatched second portion 35 and splices the spacer 25, which in turn splices the internal race of the bearing assembly 20. The impeller 45 has recesses to accommodate the lugs in the actuating washer 40. and key grooves for accommodating the mismatched second portion 35 which is positioned on the shaft 15. The second washer 50 is also keyed to accommodate the second mismatched portion 35 which is installed on the shaft 15. After the activation washer 40, the impeller 45, and second washer 50 have been installed, the extension of the motor shaft 55 is installed in connection with the second washer 50. The extension of the motor shaft 55 is preferably made of aluminum and comprises first and second recesses 65 , 70 at either end. The first hollow 65 has a diameter slightly less than an outer diameter of the motor shaft 1 5, thus allowing the extension of the motor shaft 55 to be pressed on the motor shaft 1 5 and maintain an interference fit. When installed on the motor shaft 1 5, the extension of the motor shaft 55 is in splice with the second washer 50, thus holding all the components of the shaft axially against the first mismatched portion 30. The second recess 70 in the extension of the The motor shaft 55 is dimensioned to receive and create an interference fit with the second impeller 62, which is placed in a housing 64. The extension of the motor shaft 55 performs the function of transferring torque from the motor shaft 1 5 to the impeller 62, in addition to axially retaining the motor components on the motor shaft 1 5. The extension of the motor shaft 55 provides an upright extension in situations where a long shaft is required. As the motor shaft extension is erect, the eccentric twists and whips are eliminated. Although the motor shaft extension 55 is preferably made of aluminum, it can be made of steel, plastic, fiberglass or any other suitable material. An alternative embodiment of the present invention is shown in Figure 3. The assembly comprises a motor shaft 15, a bearing assembly 20 disposed between a first mismatched portion 30 and a second mismatched portion 35, an impeller 45, a housing of motor 60, an activating separator 80, a keyed washer 85, a tube 90, and an axle extension 95. It should be noted that the impeller 45 can be replaced by any other suitable component. After the first mismatched portion 30 is formed on the shaft 15, the bearing assembly 20 is pressed on the shaft 15. A second mismatched portion 35 is created on the opposite side of the bearing assembly 20 of the first mismatched portion 30. shaft 15 complete with the first and second misaligned portions 30, 35, and the bearing assembly 20 is inserted into the motor housing 60. Subsequently, an activation spacer 80 having three or clasps is placed on the shaft 1 5, The ears are viewed at the ports of the motor housing 60. The activation spacer 80 is keyed to fit into the second mismatched portion 35, and extends into the motor housing 60 by splicing the internal race of the bearing assembly 20. The driver 45 it has recesses for accommodating the lugs in the activation spacer 80 and is positioned on the shaft 15. A washer 85 that also has recesses to accommodate the lugs of the activation spacer 80 is installed and n the shaft 15. After the activation separator 80, the impeller 45, and the washer 85 have been installed, a tube 90 is installed in connection with the washer 85. The tube 90 can be made of aluminum, fiberglass, steel or any other suitable material and has an internal diameter slightly smaller than an outer diameter of the shaft 15 to form an interference fit, which holds the drive spacer 80, the shaft component 45, and the washer 85 in place. The installation of the tube 90 not only holds the shaft components in place as mentioned, but provides a receptacle in which the shaft extension 95 can be pressed. The shaft extension 95 can be provided to couple torque from the motor shaft 15 to another component such as a pump impeller (not shown) that can be threaded into the shaft extension 95 and be placed in a housing 100. The housing 100 can be positioned at a distance from the shaft end of the shaft. 15. The tube 98 in conjunction with the extension of the shaft 95 provides a long erect shaft, thus eliminating eccentric twists and whips of the shaft, and its associated noise, during engine operation. In another alternative embodiment, such as that shown in Figure 4, a spacer 1 10 may be installed on the motor shaft 1 13 in splicing with the internal race of the bearing assembly 20. The conventional flat washers 1 15, 120 are positioned on either side of the impeller 45. A hexagonal nut 125 is threaded on the end of the motor shaft 1 13 to hold the washers 1 15, 120, the impeller 45, and the spacer 1 10 axially on the shaft 1 1 3.

The end of the motor shaft 1 13 is machined to receive an axle extension 130. The axle extension 130 is preferably machined from steel and has a hexagonal perimeter. Shaft extension 130 is preferably hardened. An aluminum connector 135 is pressed on one end of the shaft extension 130 that does not receive the motor shaft 1 13. Commonly, the shaft extension 130 is used to transfer torque from the motor shaft 1 13 to an activated component 145, which may be included in a pump drive assembly. The activated component 145 preferably comprises a lower bearing assembly 150, which receives the aluminum connector 135 which is pressed into the shaft extension 130. The lower bearing assembly 150 is preferably a ball-type roller assembly which stabilizes the shaft extension. of engine 130 during engine operation. Alternatively, the embodiment of the present invention shown in Figure 4 can be modified as shown in Figure 5. That is, the axis 1 13, the shaft extension 130, and the connector 135 shown in Figure 4 can be modified. change. Specifically, as shown in Figure 5, the motor shaft 160 may be machined to comprise a square compartment for receiving a first end of a square shaft extension 165, which loosely fits on the end of the motor shaft 160. A connector 170 may be pressed into a bearing assembly 150, and may receive a second end of the square shaft extension 165. The connector 170 and the square shaft extension 165 fit together loosely to tolerate slight misalignment between the shaft of motor 160 and activated component 145. Preferably, the square shaft extension 165 is made of flexible steel. However, alternatively, the square-axis extension may be made of any other material having characteristics of hardness and flexibility similar to those of steel. Preferably, the connector 170 is made of aluminum. However, any other suitable material can be substituted. Figure 6 illustrates another embodiment of the present invention, which is similar to the embodiment shown in Figure 5. Just as in the embodiment shown in Figures 4 and 5, Figure 6 includes a spacer 1 10, flat washers 1 15, 120, and a threaded shaft 1 13. Also included in the embodiment shown in Figure 6, is a hexagonal nut 170 crimped to a flexible steel shaft extension 180 to form an extension assembly 200. During installation, the steel shaft 180 is fitted to the end of the motor shaft 1 13 and the hexagonal nut 170 is screwed onto the motor shaft 1 13, thus securing the steel shaft 180 to the motor shaft 1 13. The steel shaft 180 it is slidably fitted to a bearing 210 of an activated component 145. The bearing 210 preferably comprises a metal powder bearing. Numerous modifications and alternative embodiments of the invention will be apparent to those skilled in the art in view of the foregoing description. Accordingly, this description should be construed as illustrative only and is for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure can be varied substantially without departing from the spirit of the invention, and the exclusive use of all modifications within the scope of the appended claims is reserved.

Claims (17)

1. REVIVAL DICATIONS 1. A method of assembling a motor shaft with a set of motor components, the method comprising the steps of: loosening a portion of the motor shaft; inserting the set of motor components, comprising a keyed spacer and a motor component, on the shaft; and press an extension on the shaft in splice with the set of engine components. The method of claim 1, wherein the motor component set further comprises a keyed washer disposed between the motor component and the extension. 3. The method of claim 1, wherein the extension comprises a tube that extends beyond the end of the motor shaft when a first end of the tube is in splice with the set of motor components. 4. The method of claim 3, wherein the tube comprises aluminum. 5. The method of claim 3, wherein the tube comprises fiberglass. 6. The method of claim 3, further comprising the step of pressing a shaft extension into a second end of the tube. The method of claim 1, wherein the extension comprises a metal shaft comprising a first recess for accommodating the motor shaft. 8. The method of claim 7, wherein the extension comprises a second recess. 9. The method of claim 1, wherein the motor component comprises a impu- tor. 10. A method of assembling a motor shaft with a motor component, the method comprising the steps of: fitting a first end of an axle extension to one end of the motor shaft; adjust a fastener on the motor shaft; and install a second end of the shaft extension in a lower assembly. eleven . The method of claim 10, wherein the shaft extension comprises a geometry in the form of a hexagonal circumference. The method of claim 10, wherein the axis extension comprises a square-shaped circumferential geometry. 13. The method of claim 1 0, wherein said fastener comprises a threaded hexagonal nut. 4. The method of claim 10, wherein the lower assembly comprises a pump impeller. The method of claim 10, wherein the lower assembly comprises a bearing. 16. The method of claim 1, wherein the bearing assembly comprises a metal powder bearing. 17. The method of claim 15, wherein the bearing assembly comprises a roller ball bearing. RESU MEN A method for assembling an engine shaft with a bearing, a motor housing and an impeller is described. A motor shaft extension is used to hold the impeller axially on the motor shaft and allows the motor shaft to drive an additional component, such as an impeller, positioned at a distance from the motor. The motor shaft extension can be made of hardened aluminum or steel. Additionally, the motor shaft extension may be included in a tube that extends beyond the end of the motor shaft and a shaft extension is pressed into the end of the tube.