CN218817615U

CN218817615U - Dustproof lubricated flange linear bearing

Info

Publication number: CN218817615U
Application number: CN202320087202.9U
Authority: CN
Inventors: 胡显达
Original assignee: Zhejiang Yinshang Guide Rail Co ltd
Current assignee: Zhejiang Yinshang Guide Rail Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-04-07
Anticipated expiration: 2033-01-30

Abstract

A dustproof and lubricated flange linear bearing comprises a flange part and a bearing part, wherein the flange part is provided with a thread inner ring and an elastic outer ring, the elastic outer ring is made of elastic sealing rubber, and an annular clamping groove is formed between the thread inner ring and the elastic outer ring; bearing portion one end is equipped with axial extension's annular flange, the internal surface screw thread cover threaded inner ring surface of annular flange, the sealed surface that cup joints in the elasticity outer ring of annular flange, the inside a plurality of oil storage chambeies that are equipped with circumference and distribute of annular flange, oil storage chamber intercommunication has the passageway of producing oil, in the rolling groove that the passageway intercommunication of producing oil was equipped with, be equipped with the ball of a plurality of adaptations in the rolling groove.

Description

Dustproof lubricated flange linear bearing

Technical Field

The utility model relates to a linear bearing field, concretely relates to dustproof lubricated flange linear bearing.

Background

The linear bearing is a common part used for realizing linear work transportation in mechanical equipment, and generally, the linear bearing cannot be directly connected with a workpiece and needs to be disconnected with a flange and parts. Patent publication No. CN201461735U discloses a dustproof linear bearing among the prior art, including bearing frame, thread bearing, oil pocket, oil cup etc. linear bearing is connected with the bearing frame through quiet cooperation, and the axle passes through linear bearing and supports, but it can not realize the dual function to dustproof lubricated.

Disclosure of Invention

In order to solve the problem, the utility model provides a dustproof and lubricating's flange linear bearing:

Preferably, the inner surface of the elastic outer ring is provided with a plurality of axially distributed annular inner bulges, and the surfaces of the annular inner bulges are all arc convex structures; the outer end of the oil storage cavity is communicated with an annular clamping groove which is matched with the clamping position and is internally convex in the annular shape.

Preferably, two side edges of the annular clamping groove coincide with two side edge clamping positions of the annular inner protrusion, and a gap exists between the bottom surface of the annular clamping groove and the outer end surface of the annular inner protrusion.

Preferably, the outer surface of the elastic outer ring is provided with an annular convex corresponding to the annular convex, and the annular convex is integrally connected with the corresponding annular convex. When the annular outer bulge is pressed, the annular outer bulge drives the annular inner bulge to further extrude towards the annular clamping groove, so that the lubricating oil in the oil storage cavity is driven to be output from the oil outlet channel.

Preferably, the oil outlet passage comprises a main oil passage communicated with the oil storage cavity and a plurality of branch oil passages communicated with the main oil passage, the main oil passage extends along the axial direction of the bearing part, and the branch oil passages extend radially relative to the bearing part and are communicated with the rolling grooves.

Preferably, the outer ring surface of the annular flange is provided with an annular outer groove matched with the elastic outer ring in a clamping manner, and the surface of the annular outer groove is provided with the annular clamping groove.

Preferably, the inner ring surface of the annular flange is provided with an annular inner groove in which a thread is connected with the inner ring of the thread, a first elastic sealing ring is sleeved in the annular inner groove and is tightly attached and adapted between the side wall of the annular inner groove and the end surface of the thread inner ring, the inner surface of the bearing part is provided with a second elastic sealing ring, and the second elastic sealing ring and the first elastic sealing ring are arranged on two sides of the rolling groove. The arrangement of the first elastic sealing ring and the second elastic sealing ring can effectively prevent external dust from entering the rolling groove, and the smoothness of the balls in the rolling groove is improved.

Has the beneficial effects that: the utility model provides a flange portion is provided with including the screw thread inner ring with outside elasticity outer loop, has guaranteed the stable relation of being connected of flange portion and bearing portion through the threaded connection of screw thread inner ring with the annular flange to can change not unidimensional flange portion as required at any time. The elastic outer ring can effectively prevent external dust from entering a gap between the flange part and the bearing part, so that the connection stability between the flange part and the bearing part is influenced. The oil storage cavity arranged in the annular flange can play a good lubricating role for the balls in the rolling groove through the oil outlet channel, so that the smoothness of the linear bearing in the sliding process is improved.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

FIG. 2 is a schematic cross-sectional view of an embodiment.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is a schematic sectional view of the flange portion.

Fig. 5 is a schematic structural view of the bearing portion.

Reference numerals: 1. a flange portion; 2. a bearing portion; 3. a threaded inner ring; 4. an elastic outer ring; 5. an annular clamping groove; 6. an annular flange; 7. an oil storage chamber; 8. an oil outlet channel; 9. rolling a groove; 10. a ball bearing; 11. the ring is internally convex; 12. an annular neck; 13. the ring is convex; 14. a main oil gallery; 15. a branch oil passage; 16. an annular outer groove; 17. an annular inner groove; 18. a first elastic sealing ring; 19. and a second elastic sealing ring.

Detailed description of the preferred embodiments

The invention will be further described with reference to the following examples and figures 1-5.

The embodiment is as follows: as shown in fig. 1, the dustproof and lubricated flange linear bearing comprises a flange part 1 and a bearing part 2, wherein the flange part 1 is provided with a thread inner ring 3 and an elastic outer ring 4, the elastic outer ring 4 is made of elastic sealing rubber, and an annular clamping groove 5 is arranged between the thread inner ring 3 and the elastic outer ring 4.

2 one end of bearing portion is equipped with axial extension's annular flange 6, the internal surface screw thread of annular flange 6 cup joints 3 surfaces of screw thread inner ring, the sealed surface of annular flange 6 cup joints in elasticity

outer loop

4, 6 inside a plurality of oil storage chambeies 7 that are equipped with circumference and distribute of annular flange, oil storage chamber 7 intercommunication has oil outlet channel 8, in the slot rolling 9 that 8 intercommunications of oil outlet channel were equipped with, be equipped with the ball 10 of a plurality of adaptations in the slot rolling 9.

As shown in fig. 2, the inner surface of the elastic outer ring 4 is provided with a plurality of axially distributed annular inner protrusions 11, and the surfaces of the plurality of annular inner protrusions 11 are all arc-shaped convex structures; the outer end of the oil storage cavity 7 is communicated with an annular clamping groove 12 matched with the annular inner bulge 11 in a clamping manner. Two side edges of the annular clamping groove 12 are overlapped with two side edge clamping positions of the annular inner protrusion 11, and a gap exists between the bottom surface of the annular clamping groove 12 and the outer end surface of the annular inner protrusion 11. The outer surface of the elastic outer ring 4 is provided with an annular convex 13 corresponding to the annular inner convex 11, and the annular convex 13 is integrally connected with the corresponding annular inner convex 11. When the annular outer bulge 13 is pressed, the annular outer bulge 13 drives the annular inner bulge 11 to further extrude towards the annular clamping groove 12, so that the lubricating oil in the oil storage cavity 7 is driven to be output from the oil outlet channel 8.

The oil outlet passage 8 comprises a main oil gallery 14 communicated with the oil storage cavity 7 and a plurality of branch oil galleries 15 communicated with the main oil gallery 14, the main oil gallery 14 extends axially along the bearing portion 2, and the branch oil galleries 15 extend radially relative to the bearing portion 2 and are communicated with the rolling grooves 9.

As shown in fig. 4-5, the outer annular surface of the annular flange 6 is provided with an annular outer groove 16 for locking and adapting the elastic outer ring 4, and the surface of the annular outer groove 16 is provided with the annular clamping groove 12. The inner ring surface of the annular flange 6 is provided with an annular inner groove 17 in threaded connection with the thread inner ring 3, a first elastic sealing ring 18 is sleeved in the annular inner groove 17, the first elastic sealing ring 18 is tightly attached and adapted between the side wall of the annular inner groove 17 and the end surface of the thread inner ring 3, the inner surface of the bearing part 2 is provided with a second elastic sealing ring 19, and the second elastic sealing ring 19 and the first elastic sealing ring 18 are arranged on two sides of the rolling groove 9.

The operation principle is as follows: the flange part 1 and the bearing part 2 are in a detachable replacement mode, and when the flange part 1 needs to be installed, the threaded inner ring 3 is screwed into the annular flange 6, so that the flange part 1 is fixedly connected with the bearing part 2. At the moment, the elastic outer ring 4 of the flange part 1 is sealed and clamped on the annular outer groove 16, so that the invasion of external dust is avoided. The adaptation of protruding 11 and ring groove 12 in the annular both can improve the stability of elasticity outer loop 4 and ring flange 6, and lubricating oil in the oil storage chamber 7 still can directly flow to ring groove 12 in addition, improves the degree of lubrication of elasticity outer loop 4 and ring flange 6. The user can directly press annular evagination 13 to directly drive the interior protruding 11 of annular and reduce the clearance between ring groove 12, and then derive the lubricating oil in the oil storage chamber 7 through oil outlet channel 8.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a dustproof lubricated flange linear bearing, includes flange portion (1) and bearing portion (2), its characterized in that: the flange part (1) is provided with a threaded inner ring (3) and an elastic outer ring (4), the elastic outer ring (4) is made of elastic sealing rubber, and an annular clamping groove (5) is arranged between the threaded inner ring (3) and the elastic outer ring (4);

bearing portion (2) one end is equipped with annular flange (6) of axial extension, the internal surface screw thread of annular flange (6) cup joints screw thread inner ring (3) surface, the sealed surface of annular flange (6) cup joints in elasticity outer loop (4), a plurality of oil storage chambeies (7) that annular flange (6) inside was equipped with circumference and distributes, oil storage chamber (7) intercommunication has oil outlet channel (8), in oil outlet channel (8) intercommunication the slot rolling (9) that are equipped with, be equipped with ball (10) of a plurality of adaptations in slot rolling (9).

2. A dust lubricated flanged linear bearing according to claim 1, wherein: the inner surface of the elastic outer ring (4) is provided with a plurality of axially distributed annular inner bulges (11), and the surfaces of the annular inner bulges (11) are all arc-shaped convex surface structures; the outer end of the oil storage cavity (7) is communicated with an annular clamping groove (12) matched with the annular inner bulge (11) in a clamping manner.

3. A dust lubricated flanged linear bearing according to claim 2, wherein: the two side edges of the annular clamping groove (12) are overlapped with the clamping positions on the two side edges of the annular inner protrusion (11), and a gap is formed between the bottom surface of the annular clamping groove (12) and the outer end surface of the annular inner protrusion (11).

4. A dust lubricated flanged linear bearing according to claim 3, wherein: the outer surface of the elastic outer ring (4) is provided with an annular convex (13) corresponding to the annular convex (11), and the annular convex (13) is integrally connected with the corresponding annular convex (11).

5. A dust lubricated flanged linear bearing according to claim 1, wherein: the oil outlet channel (8) comprises a main oil channel (14) communicated with the oil storage cavity (7) and a plurality of branch oil channels (15) communicated with the main oil channel (14), the main oil channel (14) axially extends along the bearing portion (2), and the branch oil channels (15) radially extend relative to the bearing portion (2) and are communicated with the rolling grooves (9).

6. A dust lubricated flanged linear bearing according to claim 2, wherein: the outer ring surface of the annular flange (6) is provided with an annular outer groove (16) matched with the elastic outer ring (4) in a clamping mode, and the surface of the annular outer groove (16) is provided with the annular clamping groove (12).

7. A dust lubricated flanged linear bearing according to claim 1, wherein: the inner ring surface of the annular flange (6) is provided with an annular inner groove (17) in which a thread is connected with the inner ring (3), a first elastic sealing ring (18) is sleeved in the annular inner groove (17), the first elastic sealing ring (18) is tightly attached to and matched between the side wall of the annular inner groove (17) and the end surface of the thread inner ring (3), the inner surface of the bearing part (2) is provided with a second elastic sealing ring (19), and the second elastic sealing ring (19) and the first elastic sealing ring (18) are arranged on two sides of the rolling groove (9).