CN211778537U - Novel self-aligning linear motion ball bearing - Google Patents

Abstract

The utility model discloses a novel but from aligning type linear motion ball bearing, including supporter, first sealing washer and second sealing washer, the outside of supporter is connected with outer subassembly, and the inboard of supporter is provided with the steel ball, the inboard of outer subassembly is connected with interior subassembly, first sealing washer and second sealing washer are all installed in on the subassembly, and first sealing washer and second sealing washer are located the interior subassembly surface of the left and right sides respectively, the outside of first sealing washer and second sealing washer is provided with first end cover and second end cover respectively, and first end cover and second end cover all install in outer subassembly. This neotype can be from aligning type linear motion ball bearing, the structure is uncomplicated, and the cost is lower, and machining efficiency is higher, can move in a flexible way under bearing the heavy load operating mode, can increase of service life, extensively be applicable to the high bearing capacity's of self-aligning linear motion ball bearing relevant with reciprocal linear motion.

Description

Novel self-aligning linear motion ball bearing

Technical Field

The utility model relates to a relevant technical field of linear motion ball bearing specifically is a novel but from aligning type linear motion ball bearing.

Background

The ferrule of the common linear motion ball bearing is drawn into an inner plum blossom pipe shape by a bearing steel pipe, after the ferrule is cut off by a sawing machine, the plane, the outer diameter surface, the channel surface (raceway surface) and the sealing groove are turned and formed, after the ferrule reaches the specified hardness and metallographic structure after heat treatment and quenching, the outer diameter surface is processed by an external grinding machine, the plane is processed by a plane grinding machine, the channel surface is ground by a special internal grinding machine, and then the channel surface is super-ground by special super-grinding equipment, so that the required size and shape precision of the channel are achieved, the contact form of the steel ball and the raceway surface of the common linear motion ball bearing is point-line contact, the contact area is small, the common linear motion ball bearing is only suitable for the working condition of light load, when the load is larger, or when the optical axis of a guide rail matched with the common linear motion ball bearing has assembly error, the early failure phenomenon easily occurs, and further the functions of other used, therefore, we propose a novel self-aligning linear motion ball bearing so as to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel but from aligning type linear motion ball bearing to solve most of linear motion ball bearing that propose in the above-mentioned background art and bear the ability big enough inadequately, do not possess and eliminate because the linear motion ball bearing that inaccuracy machining, assembly error or optical axis skew lead to bears the unbalance loading phenomenon through from aligning function, make the problem that bearing life reduced.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel but from aligning type linear motion ball bearing, includes supporter, first sealing washer and second sealing washer, the outside of supporter is connected with outer subassembly, and the inboard of supporter is provided with the steel ball, the inboard of outer subassembly is connected with interior subassembly, and the inside of interior subassembly has seted up first channel to the adjacent position of first channel is provided with the second channel, first sealing washer and second sealing washer are all installed in on the subassembly, and first sealing washer and second sealing washer are located the interior subassembly surface of left and right sides respectively, the outside of first sealing washer and second sealing washer is provided with first end cover and second end cover respectively, and first end cover and second end cover all install in outer subassembly.

Preferably, the number of the supporting bodies is 6 with respect to the center of the outer assembly, and the supporting bodies are all installed on the outer assembly.

Preferably, both sides of the support body are provided with groove-shaped structures, both sides of the middle of the outer component groove at the joint of the support body and the support body are provided with protruding steps, and the length dimension of the steps is 10 mm.

Preferably, the inner assembly, the outer assembly, the first end cover and the second end cover are all made of plastic materials, and the first end cover and the second end cover are elastically clamped in the outer assembly through interference fit.

Preferably, the first channel and the second channel constitute a communicating structure, and the second channel is composed of the support and the inner assembly, and the first channel is composed of the inner assembly and the outer assembly.

Preferably, the first sealing ring and the second sealing ring are both made of high-quality nitrile rubber materials, and the first sealing ring and the second sealing ring are both double-lip seals.

Compared with the prior art, the beneficial effects of the utility model are that: this neotype can be from aligning type linear motion ball bearing, the structure is uncomplicated, and the cost is lower, and machining efficiency is higher, can move in a flexible way under bearing the heavy load operating mode, can increase of service life, extensively be applicable to the high bearing capacity's of self-aligning linear motion ball bearing relevant with reciprocal linear motion.

Drawings

FIG. 1 is a schematic view of the axial cross-section structure of the present invention;

fig. 2 is a schematic view of the radial cross-section structure of the present invention;

FIG. 3 is a schematic axial sectional view of the support body of the present invention;

fig. 4 is a schematic view of the radial cross-section structure of the support body of the present invention;

FIG. 5 is a schematic view of the appearance structure of the present invention;

fig. 6 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a support body; 2. a steel ball; 3. an inner component; 4. an outer assembly; 5. a first channel; 6. a second channel; 7. a first seal ring; 8. a second seal ring; 9. a first end cap; 10. a second end cap.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a novel self-aligning linear motion ball bearing comprises a supporting body 1, a steel ball 2, an inner component 3, an outer component 4, a first channel 5, a second channel 6, a first sealing ring 7, a second sealing ring 8, a first end cover 9 and a second end cover 10, wherein the outer side of the supporting body 1 is connected with the outer component 4, the inner side of the supporting body 1 is provided with a steel ball 2, the inner side of the outer component 4 is connected with the inner component 3, the inner component 3 is internally provided with a first channel 5, and a second channel 6 is arranged at a position adjacent to the first channel 5, a first sealing ring 7 and a second sealing ring 8 are both arranged on the inner component 3, and first sealing washer 7 and second sealing washer 8 are located the interior subassembly 3 surface in the left and right sides respectively, and the outside of first sealing washer 7 and second sealing washer 8 is provided with first end cover 9 and second end cover 10 respectively, and just first end cover 9 and second end cover 10 all install in outer subassembly 4.

For example, in fig. 1, the inner component 3, the outer component 4, the first end cap 9 and the second end cap 10 are all made of plastic materials, the first end cap 9 and the second end cap 10 are elastically clamped in the outer component 4 through interference fit, and the inner component 3, the outer component 4, the first end cap 9 and the second end cap 10 are all made of PA66 engineering plastic materials, so that the tensile strength and the impact strength of the components are improved, the components have high toughness and wear resistance, and also have good self-lubrication, the shrinkage deformation during injection molding is small, and the dimensional accuracy can be well controlled;

as shown in fig. 2, 6 support bodies 1 are arranged at equal angles with respect to the center of an outer assembly 4, and the support bodies 1 are all mounted on the outer assembly 4, so that clamping grooves of the support bodies 1 are fixed on the outer assembly 4 and do not fall off, the steel balls 2 circularly roll in a first channel 5 formed by the outer assembly 4 and an inner assembly 3 and a loop in the channel of the support body 1, the first channel 5 and a second channel 6 form a communicating structure, the second channel 6 is formed by the support body 1 and the inner assembly 3, the first channel 5 is formed by the inner assembly 3 and the outer assembly 4, and the steel balls 2 can be ensured to circularly and repeatedly roll in the first channel 5 and the second channel 6;

as shown in fig. 5, both sides of the support body 1 are provided with groove-shaped structures, both sides of the middle of the groove of the outer component 4 at the joint with the support body 1 are provided with protruding steps, the length of the step is 10mm, the support body 1 can be pressed into the outer component 4, and the groove structures are buckled at the steps, so that the support body 1 can be prevented from falling;

as shown in fig. 6, the first seal ring 7 and the second seal ring 8 are made of high-quality nitrile rubber, and the first seal ring 7 and the second seal ring 8 are both double-lip sealed, the floating seal mode can improve the sealing performance of the whole bearing.

The working principle is as follows: when the novel self-aligning linear motion ball bearing is used, the linear motion ball bearing is firstly installed, in the installation process, the support body 1 and the bearing seat are inclined, when the optical axis of the linear motion ball bearing is deformed to incline at a certain angle, the support body 1 freely swings with the middle highest point as the axis to realize the self-aligning function, the steel ball 2, the support body 1 and the steel ball 2 can be ensured to be uniformly contacted with the optical axis, the edge stress and the unbalance loading phenomenon are avoided, the support body 1 is made of high-quality bearing steel materials, the back surface of the support body 1 is set to be a special curved surface, namely, the middle is high, the two ends are low, the middle is provided with a bulge, the horizontal included angle of the middle high point and the end surface low point of the back is 30 degrees, and because the support body 1 can realize the self-aligning function, each set of self-aligning linear motion ball bearing is provided, the service life of the self-aligning linear motion ball bearing and the integral assembly mechanism is prolonged, secondly, as shown in figure 2, 6 same support bodies 1 are embedded in an outer assembly 4, grooves are arranged on two sides of each support body 1, steps with the length of 10mm are arranged on two sides of the middle of the groove of the outer assembly 4 at the joint of the support bodies 1, the support bodies 1 are lightly pressed into the outer assembly 4, and the grooves are buckled at the steps, so that the support bodies 1 cannot fall off;

secondly, the first channel 5 and the second channel 6 are communicated with each other to form an annular runway similar to sports motion, a guide optical axis is assembled in a self-aligning linear motion ball bearing, only the steel ball 2 in the second channel 6 is in contact with the optical axis to roll, the inner component 3 is not in contact with the optical axis, the self-aligning linear motion ball bearing drives the steel ball 2 to roll in the second channel 6 when moving back and forth on the surface of the optical axis, the steel ball 2 enters the first channel 5 from the second channel 6 in the forward motion, the steel ball 2 at the rear end enters the second channel 6 from the first channel 5, and the steel ball 2 continuously performs circular reciprocating rolling between the second channel 6 and the first channel 5;

in addition, the first sealing ring 7 and the second sealing ring 8 which are installed on the inner component 3 are key components for ensuring sealing, the first end cover 9 and the second end cover 10 are elastically clamped in the outer component 4 through interference fit, the first end cover 9 and the second end cover 10, the first sealing ring 7 and the second sealing ring 8 form a sealing area, the sealing performance of the whole self-aligning linear motion ball bearing is optimized, and the working principle of the novel self-aligning linear motion ball bearing is realized.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a novel but from aligning type linear motion ball bearing, includes supporter (1), first sealing washer (7) and second sealing washer (8), its characterized in that: the outside of supporter (1) is connected with outer subassembly (4), and the inboard of supporter (1) is provided with steel ball (2), the inboard of outer subassembly (4) is connected with interior subassembly (3), and in the inside of subassembly (3) seted up first channel (5) to the adjacent position of first channel (5) is provided with second channel (6), first sealing washer (7) and second sealing washer (8) are all installed in on subassembly (3), and first sealing washer (7) and second sealing washer (8) are located interior subassembly (3) surface of the left and right sides respectively, the outside of first sealing washer (7) and second sealing washer (8) is provided with first end cover (9) and second end cover (10) respectively, and first end cover (9) and second end cover (10) all install in outer subassembly (4).

2. A novel self-aligning linear motion ball bearing as claimed in claim 1, wherein: the number of the supporting bodies (1) is 6 about the center of the outer assembly (4) at equal angles, and the supporting bodies (1) are all installed on the outer assembly (4).

3. A novel self-aligning linear motion ball bearing as claimed in claim 1, wherein: the groove-shaped structure is arranged on each of two sides of the support body (1), protruding steps are arranged on two sides of the middle of the groove of the outer assembly (4) at the joint of the support body (1), and the length of each step is 10 mm.

4. A novel self-aligning linear motion ball bearing as claimed in claim 1, wherein: the material of interior subassembly (3), outer subassembly (4), first end cover (9) and second end cover (10) is plastic material, and first end cover (9) and second end cover (10) pass through interference fit elasticity card in outer subassembly (4).

5. A novel self-aligning linear motion ball bearing as claimed in claim 1, wherein: the first channel (5) and the second channel (6) form a communicating structure, the second channel (6) is composed of the support body (1) and the inner component (3), and the first channel (5) is composed of the inner component (3) and the outer component (4).

6. A novel self-aligning linear motion ball bearing as claimed in claim 1, wherein: the first sealing ring (7) and the second sealing ring (8) are both made of high-quality butadiene acrylonitrile rubber materials, and the first sealing ring (7) and the second sealing ring (8) are both double-lip seals.

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