KR101790971B1 - Noise Reduced Linear Guide - Google Patents
Noise Reduced Linear Guide Download PDFInfo
- Publication number
- KR101790971B1 KR101790971B1 KR1020150150553A KR20150150553A KR101790971B1 KR 101790971 B1 KR101790971 B1 KR 101790971B1 KR 1020150150553 A KR1020150150553 A KR 1020150150553A KR 20150150553 A KR20150150553 A KR 20150150553A KR 101790971 B1 KR101790971 B1 KR 101790971B1
- Authority
- KR
- South Korea
- Prior art keywords
- retainer
- groove
- axial direction
- block
- seal
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
- F16C29/0607—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out of the bearing body or carriage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0611—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the return passages, i.e. the passages where the rolling elements do not carry load
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The present invention relates to an image forming apparatus including a guide rail, a guide block movably provided along the guide rail, and a plurality of rolling elements interposed between the guide rail and the guide block; The guide block includes a block, a retainer provided on both sides in the axial direction of the block and having a circulation passage of the rolling member, the retainer having a third seal portion inserting recess formed on an outwardly facing surface thereof, and a seal member; The block is formed in an " inverted U "shape having downwardly extending portions on both sides, a downwardly extending portion is formed in the downwardly extending portion thereof with a uni-axial right hole penetrating therethrough in the axial direction, A load-receiving groove extending in the direction of the sheet; Wherein the seal member comprises a rod-shaped first seal portion and a second seal portion spaced apart from each other and extending in the axial direction, and two third seal portions spaced from each other in the axial direction and having both ends connected to the first seal portion and the second seal portion , The third seal portion of the seal member is inserted into the third seal shoelike groove on both sides in the axial direction, and the first seal portion and the second seal portion extend in the axial direction. Thus, productivity is improved, In the motion, there is no risk of leakage of various foreign substances such as heat treatment scale and oil in the pneumatic center hole, preventing the retainer from being deformed, improving the assemblability, and preventing the linear guide .
Description
BACKGROUND OF THE
Generally, the linear motion guide device comprises a guide rail, a slider, and a plurality of balls interposed between the guide rail and the slider. On the left and right side surfaces of the guide rail, rolling grooves for rolling balls are formed. The slider includes a main body having another transmission groove corresponding to the transmission groove, a pair of frames coupled to the main body, an end cap coupled to the front and rear of the frame, and an end seal coupled to the front and rear surfaces of the end cap. do.
Korean Patent Registration No. 10-0713151 (Apr. 24, 2007), which is filed in the prior art, discloses a linear guide device capable of securing the rigidity of a slider and reducing the number of parts. FIG. 1 is a perspective view showing a conventional linear guide device, and FIG. 2 is an exploded perspective view showing a conventional linear guide device.
1 and 2, the linear guide device includes a
On both left and right side surfaces of the
The
The
There are various types of linear guide apparatuses other than the linear guide apparatuses disclosed in Korean Patent Registration No. 10-0713151 (Apr. 24, 2007), and the grooves forming the passage of the balls interposed between the blocks and the rails are arranged in one or two rows And the like. The retainer may be provided on both sides in the axial direction of the block, which is the return portion of the ball. The end seal that performs the sealing function is made of rubber material, and is separately separated into the side seal and the inner seal, and each acts as a hermetic seal.
However, in the conventional linear motion guide apparatus, when the slider is linearly moved on the guide rail, noise is generated due to movement of the rolling member.
In order to solve the problems of the conventional art, a separate tube member made of synthetic resin is provided to provide a noise-reduced linear guide capable of suppressing noise generated from the rolling body when the linear guide linearly moves .
The linear guide with reduced noise according to the present invention includes a guide rail, a guide block movably provided along the guide rail, and a plurality of rolling elements interposed between the guide rail and the guide block; The guide block includes a block, a retainer provided on both sides in the axial direction of the block and having a circulation passage of the rolling member, the retainer having a third seal portion inserting recess formed on an outwardly facing surface thereof, and a seal member; The block is formed in an " inverted U "shape having downwardly extending portions on both sides, a downwardly extending portion is formed in the downwardly extending portion thereof with a uni-axial right hole penetrating therethrough in the axial direction, A load-receiving groove extending in the direction of the sheet; Wherein the tube member is inserted into the unloading hole (113) so that the rolling element can move.
The retainer has a first U-turn hole and a second U-turn hole which are stacked in the axial direction in the axial direction and penetrate in the axial direction and are formed at the axially inner end of the first U-turn hole in the axial direction A first retainer member provided with inwardly extending engagement projections,
And a second retainer member which is laminated on the first retainer member and has a U-shaped groove formed therein to cover the first U-turn hole and the second U-turn hole and form a circulation passage;
Wherein the tube member is shorter than an axial length of the unloaded right hole; And an end of the tube member is provided in contact with an end of the coupling protrusion when the coupling protrusion of the first retainer member is inserted into the unloaded center hole.
The linear guide with reduced noise according to the present invention is provided with a tube member made of synthetic resin in a passage through which the rolling element is moved so that noises due to the driving of the rolling element are suppressed when the linear guide is linearly moved, It is effective.
1 is a perspective view showing a conventional linear guide device,
2 is an exploded perspective view showing a conventional linear guide device,
3 is a perspective view illustrating a noise reduced linear guide according to an embodiment of the present invention,
4 is a bottom perspective view showing a noise reduced linear guide according to an embodiment of the present invention,
5 is a bottom perspective view showing a state in which a cover is separated from a block according to an embodiment of the present invention,
6 is a perspective view showing a state in which a cover is separated from a block according to an embodiment of the present invention,
7 is a perspective view showing a block and a retainer member on one side according to an embodiment of the present invention,
8 and 9 are perspective views illustrating a cover provided in the linear guide according to an embodiment of the present invention,
10 and 11 are perspective views illustrating a support member provided in the linear guide with reduced noise according to the present invention,
12 and 13 are perspective views showing a second retainer member provided in the noise reduction linear guide of the present invention,
14 and 15 are perspective views showing a first retainer member provided in the linear guide with reduced noise according to the present invention,
16 is a cross-sectional view showing a block in which a tube member according to an embodiment of the present invention is installed,
17 is a front view showing a block in which a tube member according to an embodiment of the present invention is installed.
Hereinafter, the technical structure of the linear guide with reduced noise will be described in detail with reference to the accompanying drawings.
4 is a bottom perspective view illustrating a noise reduced linear guide according to an embodiment of the present invention, and FIG. 5 is a perspective view illustrating a noise- FIG. 6 is a perspective view showing a state in which a cover is separated from a block according to an embodiment of the present invention, and FIG. 7 is a perspective view showing a state where a cover is separated from a block according to an embodiment of the present invention. FIGS. 8 and 9 are perspective views showing a cover provided in the linear guide according to an embodiment of the present invention. FIGS. 10 and 11A and 11B are perspective views showing a block and a retainer member on one side, FIGS. 12 and 13 are perspective views illustrating a support member provided in the linear guide with reduced noise according to the present invention, and FIGS. 12 and 13 show a second retainer member provided in the noise- 14 and 15 are perspective views illustrating a first retainer member of a noise reduction linear guide according to an embodiment of the present invention. FIG. 16 is a perspective view illustrating a block having a tube member according to an embodiment of the present invention. 17 is a front view showing a block in which a tube member according to an embodiment of the present invention is installed.
In the following description, the direction in which the
3 to 17, the linear guide according to an embodiment of the present invention includes a guide rail (not shown), a
The
A
The
The upper and lower unloading holes 113 and 1133, which are spaced apart from each other in the downward direction and extend downward from both sides of the
Two rows of load-winding
4 to 5, a second
The axial ends of the upper and lower unloading
The rolling
A protruding block
The block inclined
And a block
And a
As shown in Figs. 8 to 9, the
The
The cover
As shown in Figs. 10 and 11, the outer shape of the
The
The
As shown in Figs. 12 and 13, the
A
The third seal
An upper
A lower
13, an
The U-grooves 1335 are vertically spaced apart from one another. The upper
The edge protruding portion formed in the upper U-turn groove 1335-1 is inserted into the edge of the upper second U turn hole 1313-1, the upper connecting groove portion 1316-1 and the upper first U-turn hole 1311-1 . The upper U-turn groove 1335-1 covers the upper second U turn hole 1313-1, the upper connecting groove portion 1316-1 and the upper first U-turn hole 1311-1 so that the rolling member 101 A moving passage is formed.
The edge projecting portion formed in the lower U-turn groove 1335-3 is inserted into the edge of the lower second U turn hole 1313-3, the lower connection groove portion 1316-3 and the lower first U-turn hole 1311-3 . Therefore, the lower U-shaped groove 1335-3 covers the lower second U-turn hole 1313-3, the lower connecting groove 1316-3 and the lower first U-hole 1311-3 so that the rolling body 101 A moving passage is formed.
On the other hand, on the inner side surface in the axial direction of the
As shown in FIGS. 14 to 15, the
And an upper second U-turn hole 1313-1 is formed through the upper first U-turn hole 1311-1 so as to be spaced inward in the width direction. And a lower second U-turn hole 1313-3 is formed through the lower first U-turn hole 1311-3 and spaced inward in the width direction. And a lower second U-turn hole 1313-3 is formed downward from the upper second U-turn hole 1313-1. The second U-turn holes 1313 are spaced apart from each other in the vertical direction. The upper second U turn hole 1313-1 is positioned to communicate with the
The upper second U-turn hole 1313-1 and the upper first U-turn hole 1311-1 are connected to each other by an upper connection groove portion 1316-1. The upper connection groove portion 1316-1 is recessed to be a passage through which the rolling
The lower second U turn hole 1313-3 and the lower first U turn hole 1311-3 are connected to the lower connection groove 1316-3. The lower connection groove portion 1316-3 is recessed to be a passage through which the rolling
A
An upper
A lower
As shown in Fig. 15, on the inner side surface in the axial direction of the
A second ball support
A first ball supporting
As shown in FIGS. 16 and 17, the
The
The
When the
Therefore, the clearance between the
Although the noise reduced linear guide according to the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. will be. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.
100: Linear guide
110: block 120: cover
131: first retainer member 133: second retainer member
140: tube member 150: cover seal
170: first ball support member 180: seal member
190: second ball supporting member
Claims (2)
The block 110 has an inverted " U "shape in which both sides extend downward. The block 110 is vertically spaced apart from both sides of the downwardly extending portion. The block 110 includes an upper and a lower sub- A middle-width hole 113 is formed in the axial direction and is formed on the facing inner side surface in the vertical direction so as to extend in the axial direction of the upper load winding groove 1151 and the lower load winding groove 1153;
The retainer 130 includes a first retainer member 131 and a second retainer member 133 which are provided on both sides in the axial direction and the width direction of the block 110 and are stacked in the axial direction, Forming a passageway;
The tube member 140 is a tubular body through which a rolling body can be moved, and is inserted into the unloading hole.
The cover seal 150 is provided on both sides of the block 110 in the axial direction, and a cover second groove is formed, and a second retainer projection 133 is inserted into the cover second groove;
The cover 120 is provided on both sides of the block 110 in the axial direction so as to cover the retainer 130 and the cover seal 150 provided on both sides in the axial direction of the block 110,
The support member 160 is positioned on the upper portion of the retainer 130 and is formed with first and second fastening holes and is screwed together with the cover 120;
The first ball support member 170 has a support protrusion inserted into the first ball support member insertion groove 1318 and positioned at a lower end of the lower load groove 1153 of the block 110 to support the rolling member;
The second ball support member 190 has a first engaging projection inserted into and engaged with the second ball supporting member insertion groove 1312 to be positioned between the widthwise directions of the upper load guide grooves 1151 and to support the rolling elements;
The first retainer member 131 is laminated on the axial end portion of the block 110 as a plate-like opening with its widthwise inner side opened, and the first U turn hole 1311 and the second U turn hole 1313 are axially penetrated An upper first retainer groove 1319 is formed to extend in the axial direction and a lower first retainer groove 1317 is formed in the lower portion to extend in the axial direction, A plurality of retainer engagement grooves 1315 spaced apart from each other are formed, a second ball support member insertion groove 1312 is formed in an upper portion inward in the width direction, a first ball support member insertion groove The first U-turn hole 1311 is formed with an engaging projection 1314 extending axially inwardly to be inserted into the unloading hole 113 at an axially inner end of the first U-turn hole 1311;
The second retainer member 133 is laminated on the first retainer member 1311 to form a U-shaped groove 1335 which covers the first U-turn hole 1311 and the second U-turn hole 1313 to form a circulation passage A second retainer protrusion 1331 bent in at least one direction inserted into the second groove of the cover seal is protruded outward in the axial direction on the axially outer side surface of the second retainer protrusion 1331, A third seal portion insertion groove 1332 which is concaved in the axial direction and bent at least once is formed on the inner side in the width direction and an upper second retainer groove 1339 having an upward concave upward in the width direction is provided in the axial direction, And an upper upwardly concave lower second retainer groove 1337 extends in the axial direction and the upper and lower second retainer grooves 1339 and 1337 are formed in the upper and lower portions of the third seal portion insertion groove 1332, And the first retainer member 131 is provided on the inner side surface in the axial direction, A plurality of retainer engaging projections 1333 are provided so as to protrude from each other; The retainer engagement protrusion 1333 is inserted into the retainer engagement groove 1315 so that the first retainer member 131 and the second retainer member 133 are laminated in the axial direction;
The seal 180 is formed by the upper first retainer groove 1319, the lower first retainer groove 1317, the upper second retainer groove 1339, the lower second retainer groove 1337, Inserted into the groove 1332;
The tube member 140 is made of synthetic resin and is shorter than the axial length of the unloading hole 113;
When the coupling protrusion 1314 of the first retainer member 131 is inserted into the unloading hole 113, the end of the tube member 140 is inserted into the tube member 140 in contact with the end of the coupling protrusion 1314, Is compressed in the axial direction so that the tube member (140) is compressed at both axial sides in the unloading hole (113) and compressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150150553A KR101790971B1 (en) | 2015-10-28 | 2015-10-28 | Noise Reduced Linear Guide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150150553A KR101790971B1 (en) | 2015-10-28 | 2015-10-28 | Noise Reduced Linear Guide |
Publications (2)
Publication Number | Publication Date |
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KR20170049795A KR20170049795A (en) | 2017-05-11 |
KR101790971B1 true KR101790971B1 (en) | 2017-10-31 |
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KR1020150150553A KR101790971B1 (en) | 2015-10-28 | 2015-10-28 | Noise Reduced Linear Guide |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713041B1 (en) * | 2000-05-29 | 2007-05-02 | 티에치케이 가부시끼가이샤 | Linear m0ti0n guide device |
JP2007309364A (en) * | 2006-05-16 | 2007-11-29 | Nsk Ltd | Linear guide device seal and linear guide device |
JP2010107043A (en) * | 2008-10-30 | 2010-05-13 | Schaeffler Kg | Linear motion rolling bearing |
-
2015
- 2015-10-28 KR KR1020150150553A patent/KR101790971B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713041B1 (en) * | 2000-05-29 | 2007-05-02 | 티에치케이 가부시끼가이샤 | Linear m0ti0n guide device |
JP2007309364A (en) * | 2006-05-16 | 2007-11-29 | Nsk Ltd | Linear guide device seal and linear guide device |
JP2010107043A (en) * | 2008-10-30 | 2010-05-13 | Schaeffler Kg | Linear motion rolling bearing |
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Publication number | Publication date |
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KR20170049795A (en) | 2017-05-11 |
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