CN102380642A - Drill presses having noise reducing components - Google Patents
Drill presses having noise reducing components Download PDFInfo
- Publication number
- CN102380642A CN102380642A CN2011102502225A CN201110250222A CN102380642A CN 102380642 A CN102380642 A CN 102380642A CN 2011102502225 A CN2011102502225 A CN 2011102502225A CN 201110250222 A CN201110250222 A CN 201110250222A CN 102380642 A CN102380642 A CN 102380642A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- sleeve pipe
- drilling machine
- axis
- lock nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/10—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines characterised by the drive, e.g. by fluid-pressure drive pneumatic power drive
Abstract
A drill press includes a spindle pulley having a first central opening extending along an axis, a sleeve disposed within the pulley central opening, the sleeve having a central opening aligned with the pulley central opening and the axis, and a locking nut connecting an upper end of the sleeve with the spindle pulley for supporting simultaneous rotation of the sleeve and the spindle pulley about the axis. The drill press includes a spindle disposed within the sleeve central opening and extending along the axis, the spindle being slidable along the axis relative to the sleeve and being rotatable with the sleeve. The drill press includes a spacer disposed between the spindle and the locking nut or between the spindle and the sleeve for aligning the spindle with the axis and preventing the spindle from contacting the upper end of the sleeve during rotation, which reduces noise during operation.
Description
Technical field
The present invention relates generally to power-equipment, relates more specifically to have the drilling machine of noise reduction parts.
Background technology
Drilling machine generally includes base, from the base to the vertical support post that extends, be attached to the main spindle box that the middle part of vertical support post is used to keep the platform of workpiece and is fixed to vertical support post upper end.Main spindle box comprises rotatable handles, and this handle is turned round to be used to that main shaft is moved up and down along the vertical axis of the longitudinal axis that is parallel to vertical support post.The height of platform can use second rotatable handles that connects with pinion-and-rack system to regulate.Platform can around the longitudinal axis of support post rotate so that platform from the vertical axis skew of main shaft.In some designs, be used to keep the drill chuck of drill bit to be connected to the lower end of main shaft.The upper end that drill chuck can have drill bit remains on three pawls in the chuck.Some drilling machines comprise that the lower end has the main shaft of tapered openings, and this opening is used for receiving the drill bit with the convergent axle that is coupled to this tapered openings.When drilling machine activated, motor rotated belt wheel by one or more driving-belts, and belt wheel rotates main shaft and the drill bit that is fixed to the main shaft lower end.
Bore with respect to hand-held, drilling machine provides a lot of benefits.At first, main shaft moves up and down along vertical axis through the rotatable handles that connects with pinion-and-rack system, and this provides the advantage of sizable mechanical aspects for the operator.Therefore, need effort still less to advance drill bit through workpiece.Secondly, drilling machine has the platform that is used for holding workpieces, makes it possible to use vice grip or anchor clamps that workpiece is remained on the not movable position on the platform.In addition, main shaft moves along the top surface of fixing vertical axis with respect to platform, and this allows the operator accurately on workpiece, to hole.
A lot of drilling machines have the mechanism of the rotating speed that is used to change brill.Usually, this speed arranges that through manually making one or more driving-belts stride across the stepwise belt wheel motion changes.In a kind of traditional design, for change speed, the operator must at first make the motor motion at least one driving-belt, to provide fully lax.After driving-belt was reorientated, motor moved back its initial position with the tensioning driving-belt.Thereby make the motor motion need motor being allowed the mode of band tensioning to install by translation.If the processing inaccuracy of drilling machine, then this mounting arrangements can cause undesirable noise and vibration.Recently, some drilling machines have added the three-stage type belt wheel scope that gathers way.Some drilling machines have been equipped with variable speed driver or buncher, and this makes the operator can when machine run, change speed.
Figure 1A and 1B have shown traditional drilling machine, and it comprises the drive system that is used for driving main shaft.This drive system comprises the stepwise main shaft belt wheel 10 that is driven by driving-belt 12.Stepwise main shaft belt wheel 10 is pivotally mounted to the main spindle box 14 of drilling machine and comprises that upper end 16, lower end 18 and the diameter that between top and bottom, extends become big a series of steps 20 gradually.With reference to Figure 1B, stepwise main shaft belt wheel 10 comprise in the top 16 and lower end 18 between the central opening 22 that extends.Central opening 22 is suitable for receiving the sleeve pipe 24 that rotates simultaneously with stepwise main shaft belt wheel 10.Lock nut 25 connects stepwise main shaft belt wheel 10 with sleeve pipe 24.Sleeve pipe 24 have the upper end 26 with lower end 28, upper end 26 has bigger diameter opening, lower end 28 have than 26 places, upper end than the major diameter opening little than the minor diameter opening.Drive system comprises and being suitable for along vertical axis A
1Reciprocating main shaft 30.Therefore, main shaft 30 can be along vertical axis A
1With respect to sleeve pipe 24 extensions and withdrawal.With reference to Figure 1A, main shaft 30 has outer surface, and this outer surface comprises a plurality of splines 32 that extend along its axial length.Second opening engagement that spline 32 is less with the diameter at 28 places, lower end of sleeve pipe 24.Therefore, the main shaft 30 of splined can be along vertical axis A
1With respect to sleeve pipe 24 motion, but the less opening of the diameter of sleeve pipe 24 and the engagement of the spline 32 on the main shaft 30 are delivered to main shaft 30 with rotational motion from sleeve pipe 24.
In traditional drilling machine, 26 places, sleeve pipe upper end than the major diameter opening and the outerface of spindle between have excessive gap.Therefore, when main shaft 30 was under the retracted position shown in Figure 1B the operation drilling machine, the main shaft of rotation 30 knocked sleeve pipe with high frequency, has formed rattling noise.This rattling noise at main shaft 30 along vertical axis A
1When the work mounting s platform descends, be tending towards disappearing, but this makes that on the contrary noise is more obvious for the operator when main shaft is withdrawn once more.
In view of above-mentioned defective, quiet more drilling machine in the time of need a kind ofly having noise reduction parts, operation.
Summary of the invention
In one embodiment, the drilling machine with noise reduction parts comprises ideally: have along the main shaft belt wheel of the central opening of axis extension, the main shaft belt wheel can rotate around axis; Be arranged on the sleeve pipe in the belt wheel central opening, this sleeve pipe has the central opening with belt wheel central opening and axis alignment.Drilling machine preferably includes lock nut, and the upper end of its joint sleeve and main shaft belt wheel rotate in the time of with support sleeve pipe and main shaft belt wheel.Main shaft is arranged on ideally in the sleeve pipe central opening of sleeve pipe and along axis and extends, and main shaft can slide with respect to sleeve pipe along axis thus, and can rotate around axis with sleeve pipe.Drilling machine comprises the distance piece that is arranged between main shaft and the lock nut ideally, with main shaft and axis alignment, and prevents that main shaft from contacting the sleeve pipe upper end at main shaft and sleeve pipe in the axis rotating process.
In one embodiment, sleeve pipe has upper end, lower end and the sleeve pipe central opening that between the top and bottom of sleeve pipe, extends.The sleeve pipe central opening preferably has diameter major part adjacent with the upper end of sleeve pipe and the smaller-diameter portion adjacent with the lower end of sleeve pipe.
In one embodiment, main shaft preferably has elongated main shaft axle, and the length of main shaft axle and axis alignment also extend along axis.Main shaft comprises the spline that extends along the length of elongated main shaft axle ideally.Ideally, spline can mesh with the smaller-diameter portion of sleeve pipe lower end, so that rotatory force is passed to the main shaft axle from sleeve pipe.In one embodiment, the casing diameter smaller portions have can with a plurality of convexities of the spline engagement of main shaft axle, so that rotatory force is passed to the main shaft axle from sleeve pipe.Ideally, spline limits the external diameter of main shaft axle, and this external diameter is less than casing diameter major part.
In one embodiment, the sleeve pipe upper end has the external screw thread that can mesh with the internal thread on the lock nut ideally.Lock nut preferably has the centre bore with axis alignment, and spline can slide with respect to lock nut along axis.In one embodiment, distance piece is the cast shape of packing ring (for example, as) and can be fixed in the centre bore of lock nut.Ideally, distance piece has the centre bore with axis alignment, and spline can slide with respect to distance piece along axis.
In one embodiment, lock nut has the annular protrusion in the centre bore of the lock nut of extending to, and the cast distance piece has the outer surface that comprises cannelure, and this cannelure can receive the annular protrusion of lock nut.In one embodiment, by such as the nonmetallic materials of rubber, polymer and elastomeric material process, can by metal such as steel be processed ideally by lock nut for distance piece.
In one embodiment, the drilling machine that has at least one noise reduction parts comprises: have axis and the main shaft belt wheel of the central opening that extends along axis; Be arranged on the sleeve pipe in the belt wheel central opening, sleeve pipe has the central opening with axis alignment; And be arranged in the sleeve pipe central opening and with the elongated main shaft of axis alignment, this elongated main shaft can be along axis with respect to sleeve pipe and the slip of main shaft belt wheel, and elongated main shaft can rotate with sleeve pipe and main shaft belt wheel simultaneously.Drilling machine preferably includes the upper end that is used for joint sleeve and the lock nut of main shaft belt wheel.Lock nut preferably has the centre bore of aiming at belt wheel central opening and sleeve pipe central opening, and wherein main shaft extends through the lock nut centre bore.Drilling machine comprises the outer surface that is arranged on main shaft and the distance piece between the lock nut centre bore ideally, contacts the upper end of sleeve pipe to prevent main shaft in around the axis rotating process at sleeve pipe and main shaft.
In one embodiment, sleeve pipe preferably has upper end, lower end and the sleeve pipe central opening that between top and bottom, extends.Ideally; The sleeve pipe central opening has diameter major part adjacent with the upper end of sleeve pipe and the smaller-diameter portion adjacent with the lower end of sleeve pipe; Diameter major part can be slided main shaft along axis with respect to sleeve pipe; Smaller-diameter portion can mesh with main shaft, between sleeve pipe and main shaft, to transmit rotatory force, main shaft can be slided along axis with respect to sleeve pipe.Main shaft preferably includes the spline that extends along the length of main shaft.Said spline preferably can mesh with the smaller-diameter portion of sleeve pipe central opening, thereby rotatory force is passed to main shaft from sleeve pipe.The smaller-diameter portion of sleeve pipe preferably includes convexity, in order to rotatory force is passed to main shaft from sleeve pipe.Main shaft can pass through protruding the slip, thereby makes the main shaft can be with respect to the sleeve pipe axially-movable.
Of the present invention these will be described with other preferred implementation hereinafter in further detail.
Description of drawings
Figure 1A has shown the stereogram according to the conventional ADS driving system that is used for drilling machine that comprises stepwise main shaft belt wheel and main shaft of one embodiment of the present invention;
Figure 1B has shown the stepwise main shaft belt wheel of the prior art shown in Figure 1A and the cutaway view of main shaft;
Fig. 2 has shown the stereogram according to the drilling machine of one embodiment of the present invention, and it comprises main spindle box, vertical support post, support and work mounting s platform;
Fig. 3 A has shown the top perspective view according to the drive system that is used for drilling machine shown in Figure 2 of one embodiment of the present invention, and it comprises driving-belt, motor pulley, center belt wheel, the main shaft belt wheel that connects with main shaft and the noise reduction parts that connect with main shaft;
Fig. 3 B has shown the front perspective view according to the drive system shown in Fig. 3 A of one embodiment of the present invention;
Fig. 4 A has shown according to Fig. 3 A of one embodiment of the present invention and the cutaway view of the main shaft belt wheel shown in the 3B, main shaft axle and noise reduction parts;
Fig. 4 B has shown the cutaway view of Fig. 4 A along its line 4B-4B intercepting;
Fig. 4 C has shown the cutaway view of Fig. 4 A along its line 4C-4C intercepting;
Fig. 5 A-5C has shown the lock nut that is used for drilling machine according to one embodiment of the present invention;
Fig. 6 has shown the stereogram according to the distance piece of one embodiment of the present invention, and this distance piece connects with the screw-nut of Fig. 5 A-5C;
Fig. 7 A has shown the drive system of Fig. 3 A-3B and 4A when the main shaft according to one embodiment of the present invention is in retracted position;
Fig. 7 B has shown the drive system of Fig. 3 A-3B and 4A when the main shaft according to one embodiment of the present invention is in extended position;
Fig. 8 has shown the cutaway view according to the noise reduction parts that engage with main shaft drilling machine one embodiment of the present invention.
The specific embodiment
With reference to Fig. 2, in one embodiment, drilling machine 40 preferably includes by the support post 44 of the vertical extension support 46 in the lower end of the main spindle box 42 of top braces and supported column 44.Drilling machine comprises rotatable main shaft 48 that stretches out from the lower end of main spindle box 42 and the chuck 50 that is installed to the main shaft lower end ideally.Chuck preferably is suitable for receiving the drill bit 52 that is used on workpiece, holing.Drilling machine comprises rotatable handles 54 ideally, and it is engaged and is used to make rotatable main shaft 48, chuck 50 and drill bit 52 along the vertical axis A parallel with the longitudinal axis of support post 44
2Descend.Drilling machine 40 also preferably includes platform 56, and it has the top surface 58 that is suitable at main shaft 48, chuck 50 and drill bit 50 supported underneath workpiece.Drilling machine preferably includes can be operated in order to use pinion and rack to raise and reduce the platform regulating handle 60 of platform 56 along support post 44.
With reference to Fig. 3 A and 3B, in one embodiment, main spindle box cover 62 can be opened, to expose a part of drive system of drilling machine.In one embodiment, drive system preferably includes stepwise motor pulley 66, and it rotates (Fig. 2) by the motor drive shaft that connects with motor 64 68.In one embodiment, stepwise center belt wheel 70 is installed in rotation on the center belt shaft 71.The lower end of center belt shaft preferably is installed to main spindle box by pivotal arm 72, ideally, pivotal arm 72 can make center belt wheel 70 regioselectivity move, to change the position of driving-belt 74,82.In one embodiment, center belt wheel 70 is the stepwise belt wheels with Pyatyi diameter change.
Drive system preferably includes first driving-belt 74 that extends around motor pulley 66 and center belt wheel 70.In one embodiment, first driving-belt 74 preferably is applicable to power is passed to center belt wheel 70 from motor pulley 66.In one embodiment, first driving-belt 74 preferably is formed with many wedges driving-belt of V-shaped groove on the inner surface, the stepwise belt wheel have be suitable for driving-belt on the V-shaped groove or the convexity of V-shaped groove engagement.In another embodiment, driving-belt can be the traditional driving-belt with smooth inner surface, and belt wheel can have the level and smooth stepwise surface with the engagement of the smooth inner surface of driving-belt.In other embodiments, can use the driving-belt that well known to a person skilled in the art any kind.
In one embodiment, drive system preferably includes stepwise main shaft belt wheel 76, and it connects with main shaft 48, the spline 80 that main shaft 48 has slender axles 78 and extends along the axial length of slender axles 78.Drive system preferably includes second driving-belt 82, and it is connected rotating center belt wheel 70 mutually with main shaft belt wheel 76.
In one embodiment; Drive system preferably includes spring-loaded belt tensioner 84; It is suitable for applying tension force to outer surface of one of driving-belt or front; The sequence number of for example submitting on June 11st, 2010 is disclosed in the commonly assigned U.S. Patent application of No.12/813554, and this disclosure is combined in this by reference.In one embodiment, spring-loaded tensioning apparatus 84 applies tension force to the outer surface of first driving-belt 74 ideally.In one embodiment, spring-loaded tensioning apparatus 84 uses spring forces, automatically and constantly applying tension force to the slack-side and/or the outer surface of first driving-belt 74, thereby keeps the optimum tension on first driving-belt.Like this, the motor that links with motor pulley 66 is installed to drilling machine securely, thus being used for of having required in the prior art before having eliminated the position of moving motor changing some parts of speed, and the additional processing on the main spindle box foundry goods that requires before.Ideally, other benefits comprise have been guaranteed to remain suitable band tension force on the driving-belt 74,82, thereby has eliminated the user's error when attempting on driving-belt, to set tension force.
In one embodiment, tensioning apparatus preferably applies tension force to the slack-side of first driving-belt 74.In one embodiment, spring-loaded tensioning apparatus can be to be marked as R
1Counter clockwise direction rotate, in order to reduce the amount of the tension force that tensioning apparatus 84 applies to first driving-belt 74, make at least one position of win driving-belt 74 and second driving-belt 82 can change speed with the adjusting drilling machine.In one embodiment, when tensioning apparatus 84 withdrawals, apply zero tension force to first driving-belt 74.After at least one position of first driving-belt and second driving-belt was conditioned with the speed that changes drive system, spring-loaded tensioning apparatus can be to be marked as R
2Clockwise direction rotate, make band tensioning apparatus 84 engage first driving-belt 74 again, to apply tension force to drive system.Tensioning apparatus preferably includes and forces tensioning apparatus 84 with direction R usually
2The spring that rotates.
In one embodiment, the tensile force that is applied to polywedge bet by spring-loaded tensioning apparatus 84 is to confirm according to the requirement of band manufacturer.In a kind of preferred implementation, the spring-loaded tensioning apparatus 84 preferred slack-side that engage first driving-belt.
In one embodiment, motor drive shaft 68 rotation motor belt wheels 66 are to drive first driving-belt 74.First driving-belt 74 makes center belt wheel 70 rotate around center belt shaft 71 again.When belt wheel 70 rotated at the center, the center belt wheel drives second driving-belt, 82, the second driving-belts made main shaft belt wheel 76 rotate again.The rotation of main shaft belt wheel makes main shaft axle 78, chuck 50 simultaneously and is fixed to drill bit 52 (Fig. 2) rotation of chuck 50.In one embodiment, first driving-belt and the position of second driving-belt on the stepwise belt wheel can be regulated, to change the rotating speed of main shaft.
With reference to Fig. 3 B and 4A, in one embodiment, the main shaft axle 78 of splined is suitable for along vertical axis A
2Move up and down.The main shaft axle 78 of splined preferably moves upward when withdrawal, when extending, moves downward.The preferred smaller diameter portions engagement with the sleeve pipe lower end of the spline that extends along the outer surface of main shaft axle 78 80, hereinafter detailed description.
With reference to Fig. 4 A, in one embodiment, drive system preferably includes stepwise main shaft belt wheel 76, a series of steps 94 that its diameter with upper end 90, lower end 92 and extension between upper end 90 and lower end 92 increases gradually.Stepwise main shaft belt wheel 76 preferably include in the top 90 and lower end 92 between the central opening 96 that extends.Belt wheel central opening 96 ideally with vertical axis A
2Aim at.Belt wheel central opening 96 is suitable for receiving tubular form or elongated sleeve pipe 98, and sleeve pipe 98 preferably connects to rotate simultaneously with stepwise main shaft belt wheel with stepwise main shaft belt wheel 76.Sleeve pipe 98 comprises upper end 100 and lower end 102 ideally.Sleeve pipe upper end 100 preferred qualifications have first radius R
1Diameter major part 104.Sleeve pipe lower end 102 preferred qualifications comprise protruding 107 smaller-diameter portion 106, and it has less than first radius R
1Second radius R
2Spline 80 is along the longitudinal axis A of main shaft axle 78
2Extend, make that the main shaft axle can be along axis A
2With respect to sleeve pipe 98 motions, with withdrawal and extension.The spline 80 that the outer surface protruding preferred and along main shaft axle 78 of qualification smaller-diameter portion 106 extends at 102 places, sleeve pipe lower end meshes, and makes the rotation of sleeve pipe 98 cause that main shaft axle 78 rotates.
Fig. 4 B has shown the cutaway view of the upper end 100 of sleeve pipe 98, and it comprises having first radius R
1Diameter major part 104, the spline 80 on the outer surface of this diameter major part and main shaft axle 78 separates.Fig. 4 C has shown the cutaway view of the lower end 102 of sleeve pipe 98, and it comprises the convexity 107 that limits smaller-diameter portion 106, and spline 80 engagements that outer surface protruding and along the main shaft axle extends make the sleeve pipe 98 that rotates that rotatory force is delivered to main shaft axle 78.
As described herein, slender casing 98 preferred immobilization are in first central opening 96 of stepwise main shaft belt wheel 76.As a result, when stepwise main shaft belt wheel 76 is rotated by driving-belt 82 (Fig. 3 B), sleeve pipe 98 rotates with stepwise main shaft belt wheel 76 simultaneously.
In one embodiment, drive system preferably includes the distance piece 110 with axially open 112 or centre bore.Distance piece 110 preferably is suitable on the outer surface of main shaft axle 78, sliding so that distance piece and lock nut 120 are fitted together.Drive system preferably includes the lock nut 120 that is fixed on the sleeve pipe upper end 100.Lock nut 120 preferably links up main shaft belt wheel and sleeve pipe 98 to rotate simultaneously.In one embodiment, distance piece 110 comprises the outer surface with cannelure 114, and lock nut 120 comprises the annular protrusion 124 that is seated in the spacer loops groove 114.Distance piece can be a cast, and can be by the nonmetallic materials manufacturing such as rubber, polymer and elastomeric material.In one embodiment, distance piece can be a packing ring.
In one embodiment, the centre bore of distance piece 110 limits inner surface sphering, annular or cast.In one embodiment, be formed with a plurality of elongated slots of the spline that is suitable for receiving on the outerface of spindle in the centre bore of distance piece 110.The interior elongated slot of centre bore that is formed on distance piece 110 preferably closely meets and/or cooperates the spline on the outerface of spindle at main shaft when vertical axis moves with respect to distance piece.In one embodiment, main shaft and distance piece are suitable for and upright axis line rotation simultaneously each other.
In one embodiment, distance piece 110 preferably includes the outer surface with annular protrusion, and lock nut 120 has the inner surface that comprises the cannelure that is suitable for receiving annular protrusion, with distance piece and lock nut be linked together.In one embodiment; Distance piece 110 comprises the outer surface with cannelure; Be provided with O shape circle in the cannelure, lock nut 120 comprises the inner surface with the cannelure that is suitable for receiving the O shape circle that is attached to distance piece, so that distance piece and lock nut are linked up.
In one embodiment, distance piece 110 is positioned between the outer surface and lock nut of main shaft, in case moving main shaft and the sleeve pipe of spline clicks.In one embodiment, distance piece can be positioned between the upper end and main shaft of sleeve pipe, for example through distance piece is attached in the upper end of sleeve pipe, in case moving main shaft and the sleeve pipe of spline clicks.
Although the present invention does not receive the restriction of any theory of operation; But believe and use around 78 assemblings of main shaft axle, thereby reduced the noise that exists in the prior art system so that main shaft axle and distance piece that sleeve pipe 98 is aimed at have prevented contacting between main shaft axle 78 and the sleeve pipe 98 of rotation.In one embodiment, distance piece 110 is preferably processed by enough soft material, be firmly held on the main shaft axle 78 can make rotation simultaneously main shaft axle 78 along vertical axis A
2Freely-movable.In one embodiment, use distance piece 110 preferably to produce very peace and quiet between lock nut 120 and the main shaft axle 78 and subdue between the part, the drilling machine of any manufacturing tolerance between sleeve pipe 98 and the main shaft axle 78 particularly.In one embodiment, the noise level that uses distance piece 110 and lock nut 120 preferably will operates drilling machine is reduced at least can obtainable low 2-5 decibel than when the traditional drilling machine of use, and quiet a lot of drilling machine is provided thus.
With reference to Fig. 5 A-5C, in one embodiment, lock nut 120 preferably includes the upper end 122 with annular protrusion 124, and annular protrusion is the border of the centre bore 126 of extension between the upper end 122 of lock nut and lower end 128.With reference to Fig. 5 A, lock nut 120 comprises the internal thread 130 as the border of the contiguous lock nut lower end 128 of centre bore 126.Internal thread 130 preferably is suitable for the external screw thread engagement with the upper end of sleeve pipe, to connect lock nut 120 and sleeve pipe 98 (Fig. 4 A).With reference to Fig. 5 A and 5C, lock nut 120 comprises at the annular protrusion 124 of lock nut 120 and the recess 132 between the lower end 128 ideally.Annular protrusion 124 is suitable for being seated in the cannelure 114 in the outer surface that is formed at distance piece 110, so that distance piece is remained in the recess 132.
With reference to Fig. 5 C, lock nut centre bore 126 preferably includes smaller-diameter portion 134 adjacent with the upper end of lock nut 120 122 and the diameter major part 136 adjacent with the lower end of lock nut 120 128.Smaller-diameter portion 134 preferably meets the external diameter of the cannelure of distance piece.Diameter major part 136 preferably meets the external diameter of sleeve pipe upper end.
In one embodiment; The outside of lock nut 120 has par or other characteristics that allows lock nut to assemble suitably and/or reverse; It has and is suitable for forming the internal diameter that cooperates with packing ring or other elastomeric materials and is enough to the height that holds packing ring and gratifying clamping force is provided on belt wheel.With reference to Fig. 5 B, in one embodiment, lock nut 120 preferably have be about 1.25 inches stride par width OD.With reference to Fig. 5 C, in one embodiment, the recess 132 of lock nut 120 has about 0.75 inch inner diameter, ID.In one embodiment, lock nut has and is about 1.0 inches height H.
Fig. 6 has shown the stereogram of cast distance piece 110.Cast distance piece 110 comprises centre bore 112 ideally, and its size makes the main shaft axle 78 can be with respect to distance piece axially-movable (Fig. 4 A).The outer surface of cast distance piece 110 comprises and being suitable for and the cannelure 114 (Fig. 5 A) of annular protrusions 124 engagements adjacent with the upper end of lock nut 120 122.The left side of Fig. 6 has shown the lock nut 120 after cast distance piece 110 has been assembled with lock nut.The upper end of distance piece 110 is positioned at the upper end of lock nut 120 more than 122.Lock nut internal thread 130 is adjacent to extend around lock nut centre bore 126 with lock nut lower end 128.
Fig. 7 A has shown the cast distance piece 110 and lock nut 120 of the upper end 90 that is fixed to stepwise main shaft belt wheel 76.In Fig. 7 A, the main shaft axle 78 of splined is in retracted position, and drill bit 52 is away from top surface 58 withdrawals (Fig. 2) of platform 56 thus.Fig. 7 B has shown that the main shaft axle 78 of splined is in extended position, makes that the upper end of the main shaft axle 78 have only splined is visible with lock nut 120 through distance piece 110.Lock nut 120 preferably connects (Fig. 4 A) with main shaft belt wheel 76 with sleeve pipe upper end 100.
Fig. 8 has shown the cutaway view of distance piece 110 and lock nut 120, has clearly described the mode that lock nut links up parts.In Fig. 8, the main shaft belt wheel is removed, thereby can know demonstration sleeve pipe upper end 100.Sleeve pipe upper end 100 comprises the external screw thread 105 with internal thread 130 engagements at 128 places, lock nut lower end.Lock nut 120 comprises the upper end 122 with annular protrusion 124, and it is seated in the cannelure 114 in the outer surface that is formed at distance piece 110.Distance piece 110 comprises the centre bore 112 of the main shaft axle 78 that receives splined.The main shaft axle 78 of splined can be along axis A
2With respect to distance piece 110, lock nut 120 and sleeve pipe 98 freely-movables.Ideally; Distance piece 110 is cooperated so that the outer surface of main shaft axle 78 and the inner surface of sleeve pipe 100 are separated with lock nut 120 each other; Thereby prevent that the main shaft axle 78 that in the operating process of drilling machine, rotates from knocking and/or click with sleeve pipe upper end 100, make thus in the prior art system the main shaft axle that rotates knock and/or the noise that exists during with the card clatter of sleeve pipe minimum.
Title used herein only is from organizational goal, therefore is not used for limiting the scope of specification or claims.The wording of in the application's full text, using " can " be optional meaning (that is, mean must) use with the meaning (that is, meaning possibility) that allows.Similarly, wording " comprises ", " comprising " and " having " mean and include but not limited to.For the ease of understanding, use identical Reference numeral to come similar elements total in the presentation graphs as far as possible.
Although foregoing description is to embodiment of the present invention, do not breaking away under only the situation of the present invention by the base region of the scope restriction of claims, can propose of the present invention other with further embodiment.For example; The present invention expects any characteristic shown in any embodiment described herein or is combined in this characteristic by reference; Can combine with any characteristic shown in any other embodiment described herein or the characteristic that is combined in this by reference, still fall in protection scope of the present invention.
Claims (21)
1. drilling machine comprises:
The main shaft belt wheel, it has the central opening that extends along axis, and said main shaft belt wheel can rotate around said axis;
Sleeve pipe, it is arranged in the central opening of said belt wheel, and said sleeve pipe has and the central opening of said belt wheel and the central opening of said axis alignment;
Lock nut, it connects the upper end and the said main shaft belt wheel of said sleeve pipe, rotates when supporting said sleeve pipe and said main shaft belt wheel;
Main shaft, it is arranged in the central opening of said sleeve pipe and along said axis and extends, and said main shaft can slide with respect to said sleeve pipe along said axis, and can be with said sleeve pipe around said axis rotation;
Distance piece, it is arranged between said main shaft and the said lock nut, with said main shaft and said axis alignment, and prevents that said main shaft from contacting the upper end of said sleeve pipe in the said axis rotating process at said main shaft and said sleeve pipe.
2. drilling machine according to claim 1, wherein, said sleeve pipe has said upper end, lower end and the central opening of the said sleeve pipe that between the said top and bottom of said sleeve pipe, extends.
3. according to the said drilling machine of claim 2, wherein, the central opening of said sleeve pipe has diameter major part adjacent with the upper end of said sleeve pipe and the smaller-diameter portion adjacent with the lower end of said sleeve pipe.
4. drilling machine according to claim 3, wherein, said main shaft has elongated main shaft axle, and the length of said main shaft axle and said axis alignment also extend along said axis.
5. drilling machine according to claim 4, wherein, said main shaft comprises the spline that extends along the said length of elongated said main shaft axle.
6. drilling machine according to claim 5, wherein, said spline can with the smaller-diameter portion engagement of the said sleeve pipe of the lower end of said sleeve pipe, so that rotatory force is passed to said main shaft axle from said sleeve pipe.
7. drilling machine according to claim 6, wherein, the smaller-diameter portion of said sleeve pipe comprise can with a plurality of convexities of the spline engagement of said main shaft axle, so that rotatory force is passed to said main shaft axle from said sleeve pipe.
8. drilling machine according to claim 7, wherein, said spline limits the external diameter of said main shaft axle, and this external diameter is less than said diameter major part.
9. drilling machine according to claim 1, wherein, the upper end of said sleeve pipe has the external screw thread that can mesh with the internal thread on the said lock nut.
10. drilling machine according to claim 9, wherein, said lock nut has the centre bore with said axis alignment, and said spline can slide with respect to said lock nut along said axis.
11. drilling machine according to claim 10, wherein, said distance piece be cast and can be fixed in the centre bore of said lock nut.
12. drilling machine according to claim 11, wherein, said distance piece has the centre bore with said axis alignment, and said spline can slide with respect to said distance piece along said axis.
13. drilling machine according to claim 12; Wherein, Said lock nut has the annular protrusion in the centre bore that extends to said lock nut, and said cast distance piece has the outer surface that comprises cannelure, and this cannelure can receive the annular protrusion of said lock nut.
14. drilling machine according to claim 1, wherein, said distance piece comprises from the nonmetallic materials of the group selection that comprises rubber, polymer and elastomeric material.
15. drilling machine according to claim 1, wherein, said distance piece has the centre bore that can receive said main shaft.
16. drilling machine according to claim 16, wherein, the said centre bore of said distance piece limit annular surface or have can with the surface of a plurality of elongated slots of spline engagement on the said main shaft.
17. a drilling machine comprises:
The main shaft belt wheel, the central opening that it has axis and extends along said axis;
Sleeve pipe, it is arranged in the central opening of said main shaft belt wheel, and said sleeve pipe has the central opening with said axis alignment;
Elongated main shaft; It is arranged in the central opening of said sleeve pipe and with said axis alignment; Said elongated main shaft can slide with respect to said sleeve pipe and said main shaft belt wheel along said axis, and said elongated main shaft can rotate with said sleeve pipe and said main shaft belt wheel simultaneously;
Lock nut, it is used to connect the upper end and the said main shaft belt wheel of said sleeve pipe, and said lock nut has the centre bore of aiming at the central opening of the central opening of said belt wheel and said sleeve pipe, and wherein said main shaft extends through the centre bore of said lock nut;
Distance piece, it is arranged between the centre bore of outer surface and said lock nut of said main shaft, contacts the upper end of said sleeve pipe to prevent said main shaft in around said axis rotating process at said sleeve pipe and said main shaft.
18. drilling machine according to claim 17, wherein, said lock nut comprises metal, and said distance piece comprises nonmetal.
19. drilling machine according to claim 17; Wherein, Said sleeve pipe has the central opening of upper end, lower end and the said sleeve pipe that between said top and bottom, extends; And the central opening of said sleeve pipe has diameter major part adjacent with the upper end of said sleeve pipe and the smaller-diameter portion adjacent with the lower end of said sleeve pipe, and said diameter major part can be slided said main shaft along said axis with respect to said sleeve pipe, and said smaller-diameter portion can mesh with said main shaft; Between said sleeve pipe and said main shaft, to transmit rotatory force, said main shaft can be slided along said axis with respect to said sleeve pipe.
20. drilling machine according to claim 19; Wherein, Said main shaft comprises the spline that extends along the length of said main shaft, and said spline can with the said smaller-diameter portion engagement of the central opening of said sleeve pipe, thereby rotatory force is passed to said main shaft from said sleeve pipe.
21. drilling machine according to claim 17, wherein, said distance piece be cast and can be fixed in the centre bore of said lock nut.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/869,949 | 2010-08-27 | ||
| US12/869,949 US20120048586A1 (en) | 2010-08-27 | 2010-08-27 | Drill presses having noise reducing components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102380642A true CN102380642A (en) | 2012-03-21 |
Family
ID=45695619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102502225A Pending CN102380642A (en) | 2010-08-27 | 2011-08-29 | Drill presses having noise reducing components |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20120048586A1 (en) |
| CN (1) | CN102380642A (en) |
| CA (1) | CA2750558A1 (en) |
| TW (1) | TW201233469A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9700979B2 (en) * | 2014-09-08 | 2017-07-11 | Jpw Industries Inc. | Belt tensioner for drill press |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH679841A5 (en) * | 1989-10-11 | 1992-04-30 | Porta Srl |
-
2010
- 2010-08-27 US US12/869,949 patent/US20120048586A1/en not_active Abandoned
-
2011
- 2011-08-26 TW TW100130617A patent/TW201233469A/en unknown
- 2011-08-26 CA CA2750558A patent/CA2750558A1/en not_active Abandoned
- 2011-08-29 CN CN2011102502225A patent/CN102380642A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TW201233469A (en) | 2012-08-16 |
| CA2750558A1 (en) | 2012-02-27 |
| US20120048586A1 (en) | 2012-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006079536A8 (en) | Device for milling rock and other materials and method or milling rock or the like using said device | |
| EP1915232B1 (en) | Floor treating machine with improved rotary drive | |
| CN105307806B (en) | Portable inclined cutting tool | |
| US20180257193A1 (en) | Double disc surface grinding machine and grinding method | |
| CN105485276B (en) | Belt tensioner for a drill press | |
| DE102005009893B4 (en) | Machine tool with at least one tool turret | |
| DE102006055605A1 (en) | Reifenmontiervorrichtung | |
| FR2593728A1 (en) | PUNCHER WITH BALANCED DRIVE | |
| US9248541B2 (en) | Grinding machine for optical glass and associated method of grinding | |
| JP7072364B2 (en) | Polishing arm for polishing the inner profile of a workpiece with a grindstone | |
| US6095906A (en) | Sander device having horizontal and vertical sander members | |
| SE1650787A1 (en) | Grinding head for floor grinding machine and method of assembling a grinding head, setting a belt tensioner, servicing, assembling or disassembling a belt pulley for a floor grinding machine | |
| CN102380642A (en) | Drill presses having noise reducing components | |
| CN108909325B (en) | A kind of separate type drill bit | |
| CN201346645Y (en) | Circular saw | |
| CN108349013B (en) | Cutting tool for large diameter travelling pipe cutter | |
| CA2628218A1 (en) | An improved structure of automatic wood planer | |
| CN209095239U (en) | Axle journal burnishing device and Superfinishing machine equipped with the axle journal burnishing device | |
| US5582539A (en) | Feeding mechanism for a sander | |
| CN210264695U (en) | Rocker arm mechanism and cutting machine with same | |
| CN209077840U (en) | Drilling machine | |
| CN107442839B (en) | Highway guardrail cutting machine | |
| US6305887B1 (en) | Structure for mounting motor of planing machine | |
| CN220613093U (en) | Machining auxiliary platform convenient to adjust | |
| DE102005051344A1 (en) | Mounting machine has measuring and work station which has horizontal camshaft with number of cam discs corresponding to number of control columns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120321 |