KR101790969B1 - A linear guide having closed circuit type seal - Google Patents
A linear guide having closed circuit type seal Download PDFInfo
- Publication number
- KR101790969B1 KR101790969B1 KR1020150150552A KR20150150552A KR101790969B1 KR 101790969 B1 KR101790969 B1 KR 101790969B1 KR 1020150150552 A KR1020150150552 A KR 1020150150552A KR 20150150552 A KR20150150552 A KR 20150150552A KR 101790969 B1 KR101790969 B1 KR 101790969B1
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- KR
- South Korea
- Prior art keywords
- retainer
- seal
- axial direction
- groove
- block
- 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
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The linear guide provided with the closed-loop type seal of the present invention includes a guide rail, a guide block movably provided along the guide rail, and a closed-loop type seal including a plurality of rolling members interposed between the guide rail and the guide block. In the linear guide provided with:
The guide block includes a block, a retainer provided on both sides in the axial direction of the block, the retainer having a third seal portion insertion groove formed concavely on an outward surface of the retainer and forming a circulation passage of the rolling member, A second ball supporting member having a first ball supporting member and a second ball supporting member, both of which are coupled to the retainer and are spaced apart from each other in the width direction and extending in the axial direction, And a seal provided on both sides of the guide rail, respectively;
The seal includes a first seal portion extending in the axial direction and inserted in the seal member insertion groove, a second seal portion extending in the axial direction and spaced apart from the first seal portion, And a third seal portion spaced apart from each other in the axial direction and having both ends connected to the first seal portion and the second seal portion and inserted into the third seal portion insertion groove. .
Description
The present invention relates to a linear guide provided with a closed-loop type seal, and more particularly, to a linear guide having a closed-type seal having a closed-loop type seal, which is easy to assemble with two closed- Guide.
Generally, the linear guide 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 is a problem that the conventional linear guide is provided with end seals only on both sides in the axial direction of the end cap and is not firmly coupled between the main body and the end seal,
In order to solve such a conventional problem, in the present invention, the two closed-loop type seals are formed into a polygonal ring shape, which is an elastic body, so that they are easy to assemble and the cover seals are provided in the axial direction of the seals, And a linear guide provided with the improved closed-loop type seal.
The linear guide provided with the closed-loop type seal of the present invention includes a guide rail, a guide block movably provided along the guide rail, and a closed-loop type seal including a plurality of rolling members interposed between the guide rail and the guide block. In the linear guide provided with:
The guide block includes a block, a retainer provided on both sides in the axial direction of the block, the retainer having a third seal portion insertion groove formed concavely on an outward surface of the retainer and forming a circulation passage of the rolling member, A second ball supporting member having a first ball supporting member and a second ball supporting member, both of which are coupled to the retainer and are spaced apart from each other in the width direction and extending in the axial direction, And a seal provided on both sides of the guide rail, respectively;
The seal includes a first seal portion extending in the axial direction and inserted in the seal member insertion groove, a second seal portion extending in the axial direction and spaced apart from the first seal portion, And a third seal portion spaced apart from each other in the axial direction and having both ends connected to the first seal portion and the second seal portion and inserted into the third seal portion insertion groove. to provide.
In the above, the retainer is provided with two second retainer projections which are bent and extend in the vertical direction and protruded axially outwardly;
A cover seal is provided on both sides of the retainer in the axial direction, the cover seal being coupled to the retainer; A cover seal second groove recessed axially outwardly at a position spaced apart in the axial direction of the cover seal and having the second retainer projection;
And the second retainer projection is inserted into the cover seal second groove.
The linear guide provided with the closed-loop type seal according to the present invention has a structure in which the seal is integrally formed and is easy to assemble, and the cover seal surrounds the axial direction of the seal and the axially outer side of the retainer. .
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 showing a linear guide provided with a linear guide seal according to the present invention,
4 is a bottom perspective view showing a linear guide equipped with a linear guide seal of the present invention,
5 is a bottom perspective view showing a state in which the cover is separated from the block in Fig. 4,
Fig. 6 is a perspective view showing a state in which the cover is separated from the block in Fig. 4,
FIG. 7 is a perspective view showing a state in which blocks are separated in FIG. 6,
8 is a perspective view showing a state in which the cover and the support member are separated in Fig. 7,
9 is a perspective view showing a block of a linear guide and a retainer member on one side of the present invention,
10 and 11 are perspective views showing a cover provided in the linear guide,
12 and 13 are perspective views showing a cover seal provided in the linear guide,
14 and 15 are perspective views showing a second retainer member provided in the linear guide,
16 and 17 are perspective views showing a first retainer member provided in the linear guide,
18 and 19 are perspective views showing support members provided in the linear guide,
20 and 21 are perspective views showing a second ball supporting member provided in the linear guide,
22 and 23 are perspective views showing a first ball supporting member provided in the linear guide,
24 is a perspective view showing the seal of the linear guide.
Hereinafter, a linear guide having a closed-loop type seal will be described in detail with reference to the accompanying drawings.
FIG. 3 is a perspective view showing a linear guide provided with a linear guide seal according to the present invention, FIG. 4 is a bottom perspective view showing a linear guide provided with the linear guide seal of the present invention, 6 is a perspective view showing a state in which a cover is separated from a block in FIG. 4, FIG. 7 is a perspective view showing a state in which blocks are separated in FIG. 6, and FIG. 8 is a perspective view 9 is a perspective view showing a block of the linear guide and a retainer member on one side of the linear guide according to the present invention, and FIGS. 10 and 11 are perspective views showing the cover and the support member provided on the linear guide, FIGS. 12 and 13 are perspective views showing a cover seal provided in the linear guide, and FIGS. 14 and 15 are perspective views showing a second retainer member provided in the linear guide. FIG. Figs. 16 and 17 are perspective views showing a first retainer member provided in the linear guide, Figs. 18 and 19 are perspective views showing a support member provided in the linear guide, Figs. 20 and 21 are linear FIGS. 22 and 23 are perspective views showing a first ball supporting member provided in the linear guide, and FIG. 24 is a perspective view showing a seal of the linear guide.
In the following description, the direction in which the
3 to 24, the linear guide according to an embodiment of the present invention includes a guide rail (not shown), a
The
The
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, a second
The
The rolling
A block
The block inclined
And a block
And a
The
The
As shown in FIG. 16, a
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
The
A
An upper
A lower
17, on the inner surface of the
A second ball support
A first ball supporting
As shown in Figs. 14 and 15, the
A
The third seal
An upper
A lower
As shown in Fig. 15, a projecting
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
18 and 19, the outer shape of the
The
As shown in Fig. 12, the
The
As shown in FIG. 13, a cover seal
20 and 21, the second
A
The first
21, a seal
The second
As shown in Figs. 22 and 23, the first
As shown in Fig. 23, on the inner side surface in the width direction of the first
As shown in Fig. 11, the
And a cover
The cover
A cover
The
A cover slit 129, which is a portion cut out in the width direction outward from the
The assembling process of the guide block 100 of the linear guide according to the present invention by assembling the above-described components will be described. The second
The
The
The first
Next, the
The assembly of the
The
The
Since the
Although the linear guide with the closed-loop type seal according to the present invention has been described with reference to the embodiments shown in the drawings, it is merely an example, and various modifications and equivalent other embodiments can be made by those skilled in the art . Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.
100: guide block
110: block 120: cover
131: first retainer member 133: second retainer member
150: cover seal 170: first ball supporting member
180: seal 190: second ball support member
Claims (2)
The guide block 100 includes a block 110; A retainer (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 which are stacked in the axial direction and form a circulation passage of the rolling member 101 130); A first ball supporting member 170 which is spaced apart in the width direction and which is coupled to the retainer 130 on both sides and which is located between the retainers 130 in the axial direction and has a concave sealing engagement recess 175 extending axially in the lower portion, Wow; A second ball support member 190 (hereinafter, referred to as " first ball support member 190 ") having both sides thereof inserted into the retainer 130 and positioned between the retainers 130 in the axial direction, )Wow; And a seal 180 provided on both sides in the width direction of the guide rail, respectively;
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;
The second retainer member 133 has a plate-like second retainer projection 1331 which is bent at least one time on the axially outer side surface and protrudes outward in the axial direction. The second retainer member 133 is provided on the inner side in the width direction of the second retainer projection 1331 A third seal portion insertion groove 1332 concaved in the axial direction and bent at least once is formed, and an upper second retainer groove 1339 having an upward concave upward is formed in the inner upper portion in the width direction, The upper and lower second retainer grooves 1337 and 1337 extend in the axial direction and the upper and lower second retainer grooves 1339 and 1337 extend in the vertical direction, Communicating;
The seal 180 has a rod-like shape extending in the axial direction and includes a first seal portion 181 inserted into the seal engagement concave portion 175, the lower first retainer groove 1317 and the lower second retainer groove 1337,
The seal member insertion groove 197, the upper first retainer groove 1319, and the second seal member 1339 inserted in the upper second retainer groove 1339 are spaced apart from the first seal portion 181 and extend in the axial direction. 183,
Two third seal portions 185 that are spaced apart from each other in the axial direction and connected at both ends to the first and second seal portions 181 and 183 and bent at least once to be inserted into the third seal portion insertion groove 1332, And a linear guide having a closed-type seal.
A cover seal 150 is provided on the outer side of the second retainer member 133 in the axial direction, the cover seal 150 being coupled to the retainer 130 on both sides; A cover seal second groove 159 is formed axially outwardly in the axial direction of the cover seal 150 at a position spaced apart in the axial direction and provided with the second retainer protrusion 1331;
And the second retainer protrusion (1331) is inserted into the cover seal second groove (159).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150150552A KR101790969B1 (en) | 2015-10-28 | 2015-10-28 | A linear guide having closed circuit type seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150150552A KR101790969B1 (en) | 2015-10-28 | 2015-10-28 | A linear guide having closed circuit type seal |
Publications (2)
Publication Number | Publication Date |
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KR20170049794A KR20170049794A (en) | 2017-05-11 |
KR101790969B1 true KR101790969B1 (en) | 2017-10-31 |
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KR1020150150552A KR101790969B1 (en) | 2015-10-28 | 2015-10-28 | A linear guide having closed circuit type seal |
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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 KR1020150150552A patent/KR101790969B1/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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KR20170049794A (en) | 2017-05-11 |
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