CN218863203U

CN218863203U - Axial protection device of ball screw bearing

Info

Publication number: CN218863203U
Application number: CN202223101755.XU
Authority: CN
Inventors: 朱正; 陆庞; 侯云
Original assignee: Shenzhen Jinhengtai Precision Machinery Co ltd
Current assignee: Shenzhen Jinhengtai Precision Machinery Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-04-14
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses an axial protection device of ball screw bearing, including ball screw, ball screw's the fixed bearing that has cup jointed in the outside, fixedly connected with axle sleeve on the bearing, fixedly connected with axle bed on the axle sleeve, ball screw's the outside is rotated and has been cup jointed the seal cover, seal cover and bearing contact, seal cover and axle sleeve sliding connection, fixedly connected with lug on the seal cover, lug and axle sleeve joint. The utility model discloses a protection can be sealed in the outside of design seal cover, prevents that dust impurity from getting into the precision that influences the bearing in the bearing, through the joint of lug and recess, can carry out preliminary location to the seal cover, simultaneously through the contact of kicking block with the seal cover, can support tightly the seal cover, improves its installation stability, and the kicking block can be convenient with the seal cover separation, after it is ageing, the convenience carries out solitary dismantlement to the seal cover and changes.

Description

Axial protection device of ball screw bearing

Technical Field

The utility model relates to a bearing technical field specifically is an axial protection device of ball screw bearing.

Background

Patent grant publication No. CN 203197664U's utility model discloses a ball screw bearing axial protection device, including bearing frame, fixed lid and bearing housing, the bearing frame in set gradually fixed lid and bearing housing, fixed lid and bearing housing static fit, bearing housing inner wall and bearing tight fit, the inboard of bearing housing inner wall bearing set up the guard ring cover. The utility model discloses a composite construction's guard ring cover, the unbalanced stress that probably produces when can the effective absorption assembly makes the good operating condition of bearing. When the ball screw is assembled, the pre-stretching nut is rotated and drives the bearing sleeve to move outwards, the bearing sleeve applies force to the pre-stretching outer taper sleeve, then the force reaches the inner taper sleeve of the protective sleeve and is finally and directly applied to the ball screw, so that the stretching force cannot influence the bearing, and the bearing is prevented from being damaged. The utility model provides an in the processing because of ball screw temperature rising thermal energy leads to the precision problem of declining, alleviated the flagging and the quivering that ball screw produced because of the dead weight.

Among the above-mentioned prior art, the problem of ageing can appear after long-time the use for the protective sheath to bearing seal protection, and the dismantlement of protective sheath is inconvenient, and the influence is more smooth work goes on, and the inside bearing is inconvenient adds lubricating oil, can improve bearing and ball screw's cooperation frictional force and influence bearing life. Improvements are therefore needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axial protection device of ball screw bearing has solved sealed protective sheath and has dismantled inconvenient problem, has still solved the inconvenient problem of adding lubricating oil of inside bearing.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an axial protection device of ball screw bearing, includes ball screw, ball screw's the fixed bearing that has cup jointed in the outside, fixedly connected with axle sleeve on the bearing, fixedly connected with axle bed on the axle sleeve, ball screw's the outside is rotated and is cup jointed the seal cover, the seal cover contacts with the bearing, seal cover and axle sleeve sliding connection, fixedly connected with lug on the seal cover, lug and axle sleeve joint, be provided with coupling mechanism on the seal cover, be provided with lubricated mechanism on the seal cover.

Preferably, the sealing sleeve and the bump are of an integrated structure, and the sealing sleeve and the bump are made of rubber materials. By designing the bumps, the bumps can be deformed when being squeezed.

Preferably, the shaft sleeve is provided with a groove, and a bump is clamped inside the groove. The sealing sleeve can be fixed by designing the clamping connection of the convex block and the groove.

Preferably, the connecting mechanism comprises a top block, a connecting strip, a sliding rod, a spring and a sliding block, the sealing sleeve is contacted with the top block, the top block is fixedly connected with the connecting strip, the connecting strip is respectively contacted with the shaft sleeve and the shaft seat, the inside of the connecting strip is connected with the sliding rod through a bearing, the sliding rod is connected with the shaft seat in a sliding manner, the spring is arranged on the outer side of the sliding rod, the sliding rod is fixedly connected with the sliding block, the sliding block is connected with the shaft seat in a sliding manner, and two ends of the spring are respectively fixedly connected with the shaft seat and the sliding block. Through the design of the connecting mechanism, the seal sleeve is convenient to disassemble.

Preferably, the lubricating mechanism comprises an oil filling port, a connecting pipe, a plug, a clamping block and a clamping groove, the oil filling port is formed in the sealing sleeve, the connecting port is formed in the shaft sleeve and communicated with the oil filling port, the connecting pipe is fixedly connected to the inside of the shaft seat and connected with the connecting port, the plug is slidably connected to the inside of the connecting pipe and contacts with the shaft seat, the clamping block is fixedly connected to the plug, and the clamping block is clamped with the connecting pipe. Through the design of the lubricating mechanism, lubricating oil is conveniently added to the bearing.

Preferably, the plug and the clamping block are of an integrated structure, and the plug and the clamping block are made of rubber materials. Through the design of the clamping block, the clamping block can deform when being extruded.

Preferably, the connecting pipe is provided with a clamping groove, and a clamping block is clamped inside the clamping groove. The plug can be fixed by designing the clamping of the clamping block and the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a design seal cover's effect can seal the protection to the outside of bearing, prevents that dust impurity from getting into the precision that influences the bearing in the bearing, through the joint of lug and recess, can carry out preliminary location to the seal cover, simultaneously through the contact of kicking block with the seal cover, can support tightly to the seal cover, improves its installation stability, and the kicking block can be convenient separate with the seal cover, in its ageing back, the convenience carries out solitary dismantlement to the seal cover and changes.

2. The utility model discloses a design end cap's effect can seal the connecting pipe, and the end cap fixes through the joint of fixture block with the draw-in groove, and the end cap can be convenient dismantles, and in the accessible connecting pipe added lubricating oil, can make lubricating oil arrange into the bearing through the oil filler hole, can reduce ball screw and bearing complex frictional force, improved bearing life.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a front cross-sectional view of the present invention shown in fig. 1;

fig. 3 is an enlarged view of a portion a of fig. 2 according to the present invention.

In the figure: 1. a ball screw; 2. a bearing; 3. a shaft sleeve; 4. a shaft seat; 5. sealing sleeves; 6. a bump; 7. a groove; 8. a connecting mechanism; 9. a lubricating mechanism; 81. a top block; 82. a connecting strip; 83. a slide bar; 84. a spring; 85. a slider; 91. an oil filler; 92. a connecting port; 93. a connecting pipe; 94. a plug; 95. a clamping block; 96. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 and fig. 2, an axial protection device for a ball screw bearing comprises a ball screw 1, a bearing 2 is fixedly sleeved outside the ball screw 1, a shaft sleeve 3 is fixedly connected to the bearing 2, a shaft seat 4 is fixedly connected to the shaft sleeve 3, a sealing sleeve 5 is rotatably sleeved outside the ball screw 1, the sealing sleeve 5 is in contact with the bearing 2, the sealing sleeve 5 is in sliding connection with the shaft sleeve 3, a bump 6 is fixedly connected to the sealing sleeve 5, the sealing sleeve 5 and the bump 6 are of an integrated structure, the sealing sleeve 5 and the bump 6 are made of rubber materials, the bump 6 is deformed by extrusion, the bump 6 is clamped with the shaft sleeve 3, a groove 7 is formed in the shaft sleeve 3, the bump 6 is clamped inside the groove 7, the sealing sleeve 5 can be fixed by clamping the bump 6 with the groove 7, a connecting mechanism 8 is arranged on the sealing sleeve 5, and a lubricating mechanism 9 is arranged on the sealing sleeve 5.

Referring to fig. 1 and 2, the connecting mechanism 8 includes a top block 81, a connecting bar 82, a sliding bar 83, a spring 84, and a sliding block 85, the sealing sleeve 5 is contacted with the top block 81, the top block 81 is fixedly connected with the connecting bar 82, the connecting bar 82 is respectively contacted with the shaft sleeve 3 and the shaft seat 4, the inside of the connecting bar 82 is connected with the sliding bar 83 through a bearing, the sliding bar 83 is slidably connected with the shaft seat 4, the spring 84 is arranged on the outer side of the sliding bar 83, the sliding block 85 is fixedly connected with the sliding bar 83, the sliding block 85 is slidably connected with the shaft seat 4, two ends of the spring 84 are respectively fixedly connected with the shaft seat 4 and the sliding block 85, and the connecting mechanism 8 is designed to facilitate the detachment of the sealing sleeve 5.

Referring to fig. 1, 2, and 3, the lubricating mechanism 9 includes an oil filling port 91, a connector 92, a connecting pipe 93, a plug 94, a block 95, and a slot 96, the oil filling port 91 is disposed on the sealing sleeve 5, the connector 92 is disposed on the shaft sleeve 3, the connector 92 is communicated with the oil filling port 91, the connecting pipe 93 is fixedly connected inside the shaft seat 4, the connecting pipe 93 is connected with the connector 92, the plug 94 is slidably connected inside the connecting pipe 93, the plug 94 contacts with the shaft seat 4, the block 95 is fixedly connected to the plug 94, the plug 94 and the block 95 are of an integral structure, the plug 94 and the block 95 are both made of rubber materials, the block 95 is extruded and deformed by designing the block 95, the block 95 is clamped with the connecting pipe 93, the slot 96 is disposed on the connecting pipe 93, the block 95 is clamped inside the slot 96, the block 94 is clamped with the block 95 by designing the block 95 and clamping with the slot 96, the plug 94 can be fixed, and lubricating mechanism 9 is designed to facilitate adding lubricating oil to the bearing 2.

The utility model discloses the concrete implementation process as follows: during the use, through seal cover 5's effect, can seal the protection to bearing 2's the outside, prevent that dust impurity from getting into the precision that influences bearing 2 in the bearing 2, through lug 6 and recess 7's joint, can carry out preliminary location to seal cover 5, through the contact of kicking block 81 with seal cover 5, can support tightly seal cover 5 simultaneously, improve its installation stability. When the sealing sleeve 5 needs to be disassembled, the connecting strip 82 is pulled in the direction away from the shaft seat 4, the connecting strip 82 drives the sliding rod 83 and the sliding block 85 to move horizontally, the sliding block 85 can extrude the spring 84, meanwhile, the connecting strip 82 drives the ejector block 81 to move to be separated from the sealing sleeve 5, then the connecting strip 82 is rotated, the ejector block 81 is completely taken out of the shaft seat 4, then the sealing sleeve 5 can be disassembled by directly pulling the sealing sleeve 5, and the sealing sleeve 5 is conveniently disassembled and replaced independently. When lubricating oil needs to be added into the bearing 2, the plug 94 is directly pulled in the direction away from the shaft seat 4, the plug 94 drives the clamping block 95 to move, the clamping block 95 is extruded and deformed, the clamping block 95 can be slidingly pulled out from the clamping groove 96, the plug 94 can be disassembled, then the lubricating oil is added into the connecting pipe 93, the lubricating oil flows into the connecting port 92 through the connecting pipe 93 and is finally discharged through the oil filling port 91, the lubricating oil can be discharged into the bearing 2 through the oil filling port 91, the friction force of the ball screw 1 matched with the bearing 2 can be reduced, and the service life of the bearing 2 is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An axial protection device of ball screw bearing, includes ball screw (1), its characterized in that: the fixed bearing (2) that has cup jointed in the outside of ball screw (1), fixedly connected with axle sleeve (3) are gone up in bearing (2), fixedly connected with axle bed (4) are gone up in axle sleeve (3), seal cover (5) have been cup jointed in the outside rotation of ball screw (1), seal cover (5) and bearing (2) contact, seal cover (5) and axle sleeve (3) sliding connection, fixedly connected with lug (6) are gone up in seal cover (5), lug (6) and axle sleeve (3) joint, be provided with coupling mechanism (8) on seal cover (5), be provided with lubricated mechanism (9) on seal cover (5).

2. An axial protector for a ball screw bearing as set forth in claim 1, wherein: the sealing sleeve (5) and the bump (6) are of an integrated structure, and the sealing sleeve (5) and the bump (6) are both made of rubber materials.

3. An axial protector for a ball screw bearing as set forth in claim 1, wherein: the shaft sleeve (3) is provided with a groove (7), and a convex block (6) is clamped inside the groove (7).

4. An axial protector for a ball screw bearing as set forth in claim 1, wherein: coupling mechanism (8) are including kicking block (81), connecting strip (82), slide bar (83), spring (84), slider (85), the contact has kicking block (81) on seal cover (5), fixedly connected with connecting strip (82) on kicking block (81), connecting strip (82) contact with axle sleeve (3) and axle bed (4) respectively, the inside of connecting strip (82) is connected with slide bar (83) through the bearing, slide bar (83) and axle bed (4) sliding connection, the outside of slide bar (83) is provided with spring (84), fixedly connected with slider (85) on slide bar (83), slider (85) and axle bed (4) sliding connection, the both ends of spring (84) respectively with axle bed (4) and slider (85) fixed connection.

5. An axial protector for a ball screw bearing as set forth in claim 1, wherein: the lubricating mechanism (9) comprises an oil filling port (91), a connecting port (92), a connecting pipe (93), a plug (94), a clamping block (95) and a clamping groove (96), the oil filling port (91) is formed in the sealing sleeve (5), the connecting port (92) is formed in the shaft sleeve (3), the connecting port (92) is communicated with the oil filling port (91), the connecting pipe (93) is fixedly connected to the inner portion of the shaft seat (4), the connecting pipe (93) is connected with the connecting port (92), the plug (94) is connected to the inner portion of the connecting pipe (93) in a sliding mode, the plug (94) is in contact with the shaft seat (4), the clamping block (95) is fixedly connected to the plug (94), and the clamping block (95) is clamped with the connecting pipe (93).

6. An axial protector for a ball screw bearing as set forth in claim 5, wherein: the plug (94) and the clamping block (95) are of an integrated structure, and the plug (94) and the clamping block (95) are made of rubber materials.

7. An axial protector for a ball screw bearing as set forth in claim 5, wherein: a clamping groove (96) is formed in the connecting pipe (93), and a clamping block (95) is clamped inside the clamping groove (96).