Dustproof bearing

Abstract

The utility model discloses a dustproof bearing and belongs to the technical field of bearings. The dustproof bearing comprises a bearing body and a dustproof mechanism, the bearing body comprises an inner ring, an outer ring is arranged outside the inner ring, a retainer is arranged between the outer ring and the inner ring, a plurality of rolling bodies are arranged in the retainer, the dustproof mechanism comprises a top sleeve and a bottom sleeve, the top sleeve is arranged outside the outer ring close to the upper end, and the bottom sleeve is arranged outside the outer ring close to the bottom end. A plurality of inserting grooves are formed in the upper end face of the bottom sleeve, a plurality of grooves are formed in the top sleeve, protruding blocks are installed in the grooves, inserting blocks are installed at the bottom ends of the protruding blocks and located in the inserting grooves, the outer walls of the inserting blocks are in clearance fit with the inner walls of the inserting grooves, and elastic layers are arranged at the upper end of the interior of the top sleeve and the bottom end of the interior of the bottom sleeve. The opposite surfaces of the two elastic layers are tightly attached to the upper end and the bottom end of the outer ring respectively, the practicability of the bearing can be effectively improved, and the bearing has high practical value.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely is a dustproof bearing. BACKGROUND

[0002] Bearing is an important part in contemporary mechanical equipment, its main function is supporting mechanical rotating body, reducing its friction coefficient in the movement process, and ensuring its rotation precision, bearing is generally composed of outer ring, inner ring and steel ball, outer ring and inner ring keep a certain interval to form steel ball raceway, bearing has the advantages of wide application range, high utilization rate.

[0003] Based on the above, the present inventor found that there are the following problems: the bearing is used in the environment with more dust, the dust is easy to enter the bearing, adhere to the surface of the part, thereby increasing the wear of the surface of the part in the bearing, thereby reducing the service life of the bearing.

[0004] Therefore, in view of the above, the existing structure and defects are improved, a dustproof bearing is provided to achieve more practical value. INVENTION CONTENTS

[0005] The utility model discloses a dustproof bearing to solve the problems in the background art.

[0006] In view of the above problems, the technical scheme provided by the utility model is:

[0007] A dustproof bearing, comprising a bearing body and a dustproof mechanism, the bearing body comprises an inner ring, the outer part of the inner ring is provided with an outer ring, a retainer is arranged between the outer ring and the inner ring, the inside of the retainer is provided with a plurality of rolling bodies, the dustproof mechanism comprises a top sleeve and a bottom sleeve, the top sleeve is arranged on the outer part of the outer ring close to the upper end, the bottom sleeve is arranged on the outer part of the outer ring close to the bottom end, a plurality of insertion slots are formed in the upper end face of the bottom sleeve, a plurality of recesses are formed in the inside of the top sleeve, a plurality of protruding blocks are arranged in the recesses, the bottom end of each protruding block is provided with an insertion block, the insertion block is located in the insertion slot, and the outer wall of the insertion block is in clearance fit with the inner wall of the insertion slot.

[0008] Further, the inside upper end of the top sleeve and the inside bottom end of the bottom sleeve are provided with elastic layers, and the opposite surfaces of the two elastic layers are tightly attached to the upper end and the bottom end of the outer ring respectively.

[0009] The beneficial effects of the above further scheme are that, by arranging elastic layers on the inside upper end of the top sleeve and the inside bottom end of the bottom sleeve, when the top sleeve and the bottom sleeve are installed, the two elastic layers are tightly attached to the upper end and the bottom end of the outer ring respectively, so that the elastic layers fill the gap between the outer ring and the inner ring, thereby further improving the dustproof effect.

[0010] Further, the inner part of the plug is provided with a cavity, the inner wall of the cavity is provided with a sliding groove on both sides, a pair of sliding grooves are slidably connected with a sliding plate, the center of one side of the sliding plate is provided with a locking rod, the other side of the sliding plate away from the locking rod is provided with a spring, and the end of the spring away from the sliding plate is fixedly connected with the inner side wall of the plug.

[0011] Further, the outer wall of the bottom sleeve is provided with a through hole at one end of the insertion slot, the end of the locking rod away from the sliding plate extends to the outside of the bottom sleeve through the through hole, and the outer wall of the locking rod is in clearance fit with the inner wall of the through hole.

[0012] The beneficial effect of the above further scheme is that when the locking rod is pressed to shrink into the inner part of the plug, the plug installed at the bottom end of the convex block in the groove of the top sleeve is inserted into the left end of the insertion slot, and then the top sleeve is rotated to make the plug continuously move in the insertion slot, and the end of the locking rod continuously abuts against the inner wall of the insertion slot during the movement, when the plug moves to the right end of the insertion slot and the locking rod is located at the position of the through hole, the locking rod no longer abuts against the inner wall of the insertion slot, and the locking rod extends out of the convex block and passes through the through hole to be located outside the bottom sleeve under the elastic force of the spring, thereby completing the installation between the top sleeve and the bottom sleeve and sealing the outer ring and the inner ring.

[0013] Further, the end of the locking rod away from the sliding plate is provided with a plurality of threads on the outer wall, a gasket is sleeved on the outer end of the locking rod, and a locking ring is threadedly connected with the outer end of the locking rod, and the one side of the locking ring away from the bottom sleeve abuts against the one side of the gasket away from the bottom sleeve.

[0014] The beneficial effect of the above further scheme is that the threads are arranged on the outer wall of the end of the locking rod, and the locking ring is threadedly connected with the outer wall of the end of the locking rod, so that the position of the locking rod is fixed.

[0015] Further, the one side of the gasket away from the locking ring is arc-shaped, and the outer wall of the bottom sleeve is tightly attached to the one side of the gasket away from the locking ring.

[0016] The beneficial effect of the above further scheme is that the one side of the gasket away from the locking ring is arc-shaped and tightly attached to the outer wall of the bottom sleeve, so that the gap between the locking ring and the outer wall of the bottom sleeve is filled.

[0017] Further, the bottom surface of the top sleeve is tightly attached to the bottom surface of the bottom sleeve, and an axle sleeve is installed at the center of the upper end of the top sleeve and the center of the bottom end of the bottom sleeve.

[0018] The beneficial effect of the above further scheme is that the axle sleeve is installed at the center of the top sleeve and the center of the bottom sleeve, so that the rotating shaft is conveniently installed.

[0019] Further, the top sleeve and the bottom sleeve are metal materials, the top surface of the top sleeve is provided with a plurality of first heat dissipation fins, the bottom surface of the bottom sleeve is provided with a plurality of second heat dissipation fins, and one side of the first heat dissipation fins and the second heat dissipation fins is connected with the outer wall of the two shaft sleeves respectively.

[0020] The beneficial effect of the further scheme is that the heat dissipation efficiency of the top sleeve and the bottom sleeve is improved by installing the first heat dissipation fins and the second heat dissipation fins on the top surface of the top sleeve and the bottom surface of the bottom sleeve respectively.

[0021] Compared with the prior art, the beneficial effect of the utility model is that: the dustproof bearing, through set up top sleeve and bottom sleeve, extrude locking lever and make it shrink to the inside of the plug, then install the plug at the bottom end of the convex block in the top sleeve groove into the inside left end of the insertion slot, then rotate the top sleeve to make the plug move in the insertion slot, one end of the locking lever constantly abuts against the inner wall of the insertion slot in the moving process, when the plug moves to the right end of the insertion slot and the locking lever is located at the position of the through hole, at this time, the locking lever no longer is pressed by the inner wall of the insertion slot, the locking lever extends from the inside of the convex block and passes through the through hole and is located outside the bottom sleeve under the elastic force of the spring, when the top sleeve and the bottom sleeve are connected and fixed, the gap between the outer ring and the inner ring can be preliminarily sealed and dustproof, by setting the elastic layer on the inside upper end of the top sleeve and the inside bottom end of the bottom sleeve, when the top sleeve and the bottom sleeve are installed, the two elastic layers are tightly attached to the upper end and the bottom end of the outer ring respectively, so that the elastic layer fills the gap between the outer ring and the inner ring, thereby further improving the dustproof effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides a kind of three-dimensional structure schematic diagram of dustproof bearing for the utility model;

[0023] Figure 2 The utility model provides the explosion three-dimensional structure schematic diagram of bearing body of dustproof bearing for the utility model;

[0024] Figure 3 The utility model provides the explosion three-dimensional structure schematic diagram of top sleeve of dustproof bearing for the utility model;

[0025] Figure 4 The utility model provides the three-dimensional structure schematic diagram of bottom sleeve of dustproof bearing for the utility model;

[0026] Figure 5 The utility model provides the top cross-sectional structure schematic diagram of plug of dustproof bearing for the utility model.

[0027] In the figure: 100, bearing body; 1001, inner ring; 1002, outer ring; 1003, retainer; 1004, rolling element; 200, dustproof mechanism; 2001, top sleeve; 2002, groove; 2003, protrusion; 2004, insertion block; 2005, sliding groove; 2006, sliding plate; 2007, locking rod; 2008, spring; 2009, bottom sleeve; 2010, insertion slot; 2011, through hole; 2012, gasket; 2013, locking ring; 2014, shaft sleeve; 300, first heat dissipation fin; 400, second heat dissipation fin. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-5 The utility model provides a technical scheme: a dustproof bearing, including bearing body 100 and dustproof mechanism 200, bearing body 100 includes inner ring 1001, the outside of inner ring 1001 is equipped with outer ring 1002, and the outer ring 1002 and inner ring 1001 are equipped with retainer 1003, the inside of retainer 1003 is equipped with a plurality of rolling elements 1004, dustproof mechanism 200 includes top sleeve 2001 and bottom sleeve 2009, top sleeve 2001 is set up in the outside of outer ring 1002 close to the upper end, bottom sleeve 2009 is set up in the outside of outer ring 1002 close to the bottom end, the upper end surface of bottom sleeve 2009 is equipped with a plurality of insertion slots 2010, the inside of top sleeve 2001 is equipped with a plurality of grooves 2002, the inside of a plurality of grooves 2002 is installed with protrusion 2003, the bottom end of protrusion 2003 is installed with insertion block 2004, insertion block 2004 is located in the inside of insertion slot 2010, and the outer wall of insertion block 2004 and the inner wall of insertion slot 2010 gap fit, the inside upper end of top sleeve 2001 and the inside bottom end of bottom sleeve 2009 are equipped with elastic layer, and the opposite side of two elastic layers is respectively closely combined with the upper end and bottom end of outer ring 1002, by setting top sleeve 2001 and bottom sleeve 2009, when top sleeve 2001 and bottom sleeve 2009 are connected and fixed between, the gap between outer ring 1002 and inner ring 1001 can be primarily sealed and dustproof, when top sleeve 2001 and bottom sleeve 2009 are installed, two elastic layers are closely combined with the upper end and bottom end of outer ring 1002 respectively, so that the elastic layer fills the gap between outer ring 1002 and inner ring 1001, to further improve the dustproof effect.

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-5 The utility model provides a technical scheme: the inside of plug -in block 2004 is equipped with cavity, the inner wall both sides of cavity are equipped with sliding slot 2005, a pair of sliding slot 2005 are connected with sliding plate 2006 between sliding, the center of one side of sliding plate 2006 installs locking lever 2007, the one side of sliding plate 2006 away from locking lever 2007 installs spring 2008, and the end away from sliding plate 2006 of spring 2008 is fixedly connected with the inside wall of plug -in block 2004, the outer wall of bottom sleeve 2009 is equipped with through -hole 2011 at one end at plug -in groove 2010, and locking lever 2007 extends to the outside of bottom sleeve 2009 through through -hole 2011 at the end away from sliding plate 2006, and the outer wall of locking lever 2007 and the inner wall of through -hole 2011 gap fit, and the outer wall of locking lever 2007 is equipped with a plurality of threads at the end away from sliding plate 2006, and the end outside of locking lever 2007 is equipped with gasket 2012, and the end outside of locking lever 2007 is connected with locking ring 2013, and the one side of locking ring 2013 and gasket 2012 are away from the one side of bottom sleeve 2009, when extruding locking lever 2007 makes it shrink to the inside of plug -in block 2004, when again inserting plug -in block 2004 installed in the recess 2002 of top sleeve 2001 protruding block 2003 bottom end into the left end inside plug -in groove 2010, then rotating top sleeve 2001 makes plug -in block 2004 constantly moves in the inside of plug -in groove 2010, and the end of locking lever 2007 constantly abuts against the inner wall of plug -in groove 2010 in the moving process, when plug -in block 2004 moves to the right end of plug -in groove 2010, and locking lever 2007 is located in the position of through -hole 2011, locking lever 2007 no longer is pressed by the inner wall of plug -in groove 2010 at this moment, and locking lever 2007 extends from the inside of protruding block 2003 and passes through through -hole 2011 and is located in the outside of bottom sleeve 2009 under the elastic force of spring 2008, then gasket 2012 is sleeved on the outside of locking lever 2007, and locking ring 2013 is installed on locking lever 2007, because the one side of gasket 2012 away from locking ring 2013 is arc, and is closely attached to the outer wall of bottom sleeve 2009, so as to fill the gap between locking ring 2013 and the outer wall of bottom sleeve 2009.

[0032] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-5 The utility model provides a technical scheme: the gasket 2012 is arc-shaped on the side far from the locking ring 2013, and the gasket 2012 is tightly attached to the outer wall of the bottom sleeve 2009 on the side far from the locking ring 2013, the bottom surface of the top sleeve 2001 is tightly attached to the bottom surface of the bottom sleeve 2009, the central upper end of the top sleeve 2001 and the central bottom end of the bottom sleeve 2009 are both provided with a shaft sleeve 2014, the top sleeve 2001 and the bottom sleeve 2009 are both metal materials, the top surface of the top sleeve 2001 is provided with a plurality of first heat dissipation fins 300, the bottom surface of the bottom sleeve 2009 is provided with a plurality of second heat dissipation fins 400, one side of the first heat dissipation fins 300 and the second heat dissipation fins 400 is connected with the outer wall of the two shaft sleeves 2014 respectively, by installing a plurality of first heat dissipation fins 300 and a plurality of second heat dissipation fins 400 on the top surface of the top sleeve 2001 and the bottom surface of the bottom sleeve 2009 respectively, the heat dissipation efficiency of the top sleeve 2001, the bottom sleeve 2009 and the two shaft sleeves 2014 is improved.

[0034] Specifically, the working principle of the dustproof bearing is as follows: during use, the extrusion locking rod 2007 is retracted into the inside of the plug block 2004, the plug block 2004 installed at the bottom end of the protruding block 2003 in the groove 2002 of the top sleeve 2001 is inserted into the left end inside the insertion slot 2010, the top sleeve 2001 is rotated to continuously move the plug block 2004 inside the insertion slot 2010, and one end of the locking rod 2007 continuously abuts against the inner wall of the insertion slot 2010 during the movement, when the plug block 2004 moves to the right end of the insertion slot 2010 and the locking rod 2007 is located at the position of the through hole 2011, the locking rod 2007 is no longer pressed by the inner wall of the insertion slot 2010 and extends out from the inside of the protruding block 2003 and passes through the through hole 2011 to be located outside the bottom sleeve 2009 under the elastic force of the spring 2008, the gasket 2012 is sleeved outside the locking rod 2007, and the locking ring 2013 is installed on the locking rod 2007, the gap between the locking ring 2013 and the outer wall of the bottom sleeve 2009 is filled by the gasket 2012, the gap between the outer ring 1002 and the inner ring 1001 is preliminarily sealed and dustproof after the connection and fixation between the top sleeve 2001 and the bottom sleeve 2009, and the upper end and the bottom end of the outer ring 1002 are tightly attached to the two elastic layers respectively, so that the elastic layers fill the gap between the outer ring 1002 and the inner ring 1001, thereby further improving the dustproof effect.

Claims

1. A dust-proof bearing, characterized by, The application relates to a bearing body (100) and a dustproof mechanism (200), the bearing body (100) comprises an inner ring (1001), the outer part of the inner ring (1001) is provided with an outer ring (1002), a retainer (1003) is arranged between the outer ring (1002) and the inner ring (1001), the inner part of the retainer (1003) is provided with a plurality of rolling elements (1004), the dustproof mechanism (200) comprises a top sleeve (2001) and a bottom sleeve (2009), the top sleeve (2001) is arranged on the outer part of the outer ring (1002) close to the upper end, the bottom sleeve (2009) is arranged on the outer part of the outer ring (1002) close to the bottom end, a plurality of insertion grooves (2010) are formed in the upper end face of the bottom sleeve (2009), a plurality of recesses (2002) are formed in the inner part of the top sleeve (2001), a plurality of protrusions (2003) are arranged in the inner part of the recesses (2002), the bottom end of each protrusion (2003) is provided with an insertion block (2004), the insertion block (2004) is arranged in the insertion groove (2010), and the outer wall of the insertion block (2004) is in clearance fit with the inner wall of the insertion groove (2010).

2. A dust-proof bearing according to claim 1, characterized in that The inner upper end of the top sleeve (2001) and the inner bottom end of the bottom sleeve (2009) are provided with elastic layers, and the opposite surfaces of the two elastic layers are tightly attached to the upper end and the bottom end of the outer ring (1002) respectively.

3. A dust-proof bearing according to claim 2, wherein A cavity is formed in the inner part of the insertion block (2004), sliding grooves (2005) are formed in the inner walls of the cavity, a sliding plate (2006) is slidably connected between the sliding grooves (2005), a locking rod (2007) is arranged on one side of the sliding plate (2006), a spring (2008) is arranged on the side of the sliding plate (2006) away from the locking rod (2007), and the spring (2008) is fixedly connected to the inner side wall of the insertion block (2004) at the end away from the sliding plate (2006).

4. A dust-proof bearing according to claim 3, wherein A through hole (2011) is formed in the outer wall of the bottom sleeve (2009) at one end of the insertion groove (2010), the locking rod (2007) extends to the outside of the bottom sleeve (2009) through the through hole (2011) at the end away from the sliding plate (2006), and the outer wall of the locking rod (2007) is in clearance fit with the inner wall of the through hole (2011).

5. A dust-proof bearing according to claim 4, wherein A plurality of threads are arranged on the outer wall of the end of the locking rod (2007) away from the sliding plate (2006), a gasket (2012) is arranged on the outer part of the end of the locking rod (2007), a locking ring (2013) is threadedly connected to the outer part of the end of the locking rod (2007), and one side of the locking ring (2013) abuts against the side of the gasket (2012) away from the bottom sleeve (2009).

6. A dust-proof bearing according to claim 5, wherein The side of the gasket (2012) away from the locking ring (2013) is arc-shaped, and the outer wall of the bottom sleeve (2009) is tightly attached to the side of the gasket (2012) away from the locking ring (2013).

7. A dust-proof bearing according to claim 6, characterized in that The bottom surface of the top sleeve (2001) and the bottom surface of the bottom sleeve (2009) are tightly fitted, and the upper end center of the top sleeve (2001) and the bottom end center of the bottom sleeve (2009) are both provided with a shaft sleeve (2014).

8. A dust-proof bearing according to claim 7, characterized in that The top sleeve (2001) and the bottom sleeve (2009) are both made of metal, the top surface of the top sleeve (2001) is provided with a plurality of first heat dissipation fins (300), the bottom surface of the bottom sleeve (2009) is provided with a plurality of second heat dissipation fins (400), and one side of the first heat dissipation fins (300) and the second heat dissipation fins (400) is connected with the outer wall of the two shaft sleeves (2014) respectively.

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