CN201043568Y - Structure of rolling member retainer - Google Patents

Abstract

A structure of a rolling part retainer comprises a plurality of spacing pieces, two connecting belts and two anti-pulling belts, wherein the spacing pieces are provided with a plurality of oil storage parts, the oil storage parts are formed by concave arrangement of the surfaces of the spacing pieces, the front end surface and the rear end surface of each spacing piece are respectively provided with a plurality of contact surfaces, the opposite contact surfaces between the spacing pieces jointly form a local coating type accommodating space, the connecting belts are arranged on two sides of the spacing pieces in pairs, the anti-pulling belts are respectively arranged on two sides of the spacing pieces and are connected and combined with the connecting belts, and the rolling parts are respectively accommodated in the local coating type accommodating space in a; therefore, the rolling parts are kept between the spacing pieces in a local coating mode to prevent the phenomena of improper clamping and extrusion and separation when the rotary circulation motion is carried out, and the number of the connecting belts is increased to improve the flexibility uniformity of the anti-pulling belt, so that the friction resistance is reduced, the plastic deformation is avoided, and the fracture phenomenon is prevented.

Description

Structure of Rolling Element Cage

technical field

The utility model relates to a structure of a rolling part retainer, in particular to a retainer which can make the rolling part roll stably and smoothly, so as to provide devices such as linear slide rails for precise and predictable action.

Background technique

The rolling part cage is usually used to accommodate the rolling parts made of balls, so that the rolling parts can roll as expected, and can further perform rotary cycle motion, and are often used in actions that require high-speed operation or precise adjustment Behavior, such as: precision devices such as linear slides.

Please refer to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 show the known ball member retainer, including: a plurality of spacers 1a, two tension bands 3a and a plurality of rolling parts 4a, the two sides of the spacer 1a Each has a connection belt 2a, and the two connection belts 2a are respectively connected and combined with the two tension belts 3a on both sides of the spacer 1a, whereby the spacer 1a can be formed between the two tension belts 3a. linear arrangement.

The front and rear ends of the spacer 1a each have an integrally formed spherical surface 11a, the spherical surface 11a is formed correspondingly to the rolling member 4a, the rolling member 4a is a ball, and the rolling parts 4a can be individually accommodated between the spacers 1a. The component 4a, and the spherical surface 11a is in close surface contact with the rolling component 4a, so that the rolling component 4a can stably roll between the spacers 1a.

Please refer to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 show another known rolling member retainer, the front and rear ends of the spacer 1a respectively have grooves 12a, the grooves 12a are defined by the end faces of the spacer 1a Concave shape, the two side edges of the groove 12a make point contact with the surface of the rolling component 4a respectively, and accommodate the rolling component 4a between the spacer 1a in a rolling manner.

The tension band 3a has a flexible section 31a and a non-flexible section 32a, the flexible section 31a is a longitudinal distance of the tension band corresponding to the spacing of the spacer 1a, and the non-flexible section 32a is the anti-slip section 32a. The drawstring 3a corresponds to the side of the spacer 1a and is adjacent to a longitudinal distance from the front and rear edges of the spacer 1a.

Through the composition of the above components, the rolling member 4a can be held between the spacers 1a in a rolling manner, and performs a cyclic motion, so as to be further arranged on a device such as a linear slide rail. In the turning zone, the flexible sections 31a on the two tension belts 3a will make corresponding elastic deformations to reduce frictional resistance, so that the rolling parts 4a can smoothly pass through the turning zone, and then perform cyclic turning motion without interruption .

However, the above-mentioned known rolling element cages have the following significant disadvantages in practical implementation:

1. The known spacer 1a covers the rolling member 4a with the opposite single spherical surface 11a, and cooperates in a surface contact manner. This contact method will produce improper friction resistance and pinching during the rotary cycle movement. Another known spacer 1a uses the groove 12a to make point contact with the rolling member 4a, however, this contact method cannot stably keep the rolling member 4a at the center of the spacer 1a during the cyclic motion. , and then cause the rolling member 4a to easily slip out when turning.

2. The connection belt 2a and the tension belt 3a are connected and combined in a single way. In order to comply with the consideration of strength, although the known technology increases the area formed by the connection belt 2a and the tension belt 3a, it also reduces the flexural area. The uniformity of the flexible section 31a results in unsuitable frictional resistance and plastic deformation, thereby affecting the fluency of the rotary cycle movement, while another known technology has a longer flexible section 31a and a smaller common area, but the structural strength Insufficient, so that it is easy to break when the rotary cycle moves.

3. The geometric shape of the spherical surface 11a ( FIG. 1 ) or the groove 12a ( FIG. 2 ) of the spacer 1a is not conducive to injection mold release during manufacture, and may easily cause dimensional deformation after mold release.

Contents of the invention

The main purpose of this utility model is to provide an improved structure of the rolling element retainer, which adopts a partial coating method to maintain the center position of the rolling element between the spacers, so as to prevent improper rotation during the rotary cycle movement. Pinch and prolapse phenomenon.

Another purpose of the present utility model is to provide a structure of a rolling element retainer, which increases the number of connecting belts to improve the uniformity of flexibility of the tension belt, thereby reducing frictional resistance, avoiding plastic deformation and preventing breakage .

Yet another object of the present invention is to provide an improved structure of the rolling element retainer, the structure makes the shape of the spacer and the two connecting belts favorable for demoulding and injection molding, so as to reduce the manufacturing cost.

In order to achieve the above purpose, the utility model provides an improved structure of the rolling element retainer, which includes: a plurality of spacers, which have a plurality of oil storage parts, and the oil storage parts are formed by recessing the surface of the spacer, The front and rear ends of the spacer each have a plurality of contact surfaces, and the opposite contact surfaces between the spacers jointly form a partially covered accommodation space; two connecting belts are arranged in pairs on the spacer Two sides; two tension belts, which are respectively arranged on both sides of the spacer, and connected with the two connecting belts; and a plurality of rolling parts, which are individually accommodated in the partial covering container placed in the space.

The utility model has the following beneficial effects: the rolling parts are individually accommodated in the partially covered accommodating space, and the contact surface makes partial surface contact with the rolling parts, which can reduce frictional resistance and prevent The phenomenon of pinching and prolapse occurs.

Moreover, the spacer connects the two tensile straps with the two connecting straps, which can improve the uniformity of flexibility of the tensile straps, and take into account the consideration of strength, greatly reducing the rotation and circulation of the two tensile straps. The resulting frictional resistance effectively overcomes problems such as fracture phenomena and plastic deformation.

In addition, the geometrical shape of the contact surface of the spacer and the two connecting belts is favorable for demoulding and injection molding, which can effectively improve the yield of products, thereby reducing manufacturing costs and increasing profits of enterprises.

In order to enable a further understanding of the features and technical content of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the accompanying drawings are for reference and illustration purposes only, and are not intended to limit the present utility model. .

Description of drawings

Fig. 1 is a schematic perspective view of a known rolling element cage

Figure 2 is a bottom view of a known rolling element cage

Fig. 3 is a schematic perspective view of another known rolling element cage

Fig. 4 is a bottom view of another known rolling element cage

Fig. 5 is a three-dimensional schematic view of the structure of the rolling element cage of the present invention

Fig. 6 is the bottom view of the structure of the rolling element cage of the present utility model

Fig. 7 is a side view of the structure of the rolling element cage of the present utility model

Fig. 8 is the front view of the structure of the rolling part cage of the present utility model

Fig. 9 is a schematic diagram of the state of installing rolling parts of the utility model

Fig. 10 is a three-dimensional schematic diagram of the rolling part cage of the present invention arranged on the linear slide rail

Fig. 11 is a schematic diagram of the rolling element retainer of the present invention performing cyclic motion

Wherein, the reference signs are explained as follows:

1 spacer

11 The first groove (oil storage part)

12 Second groove (oil storage part)

13 contact surface

131 First sphere

132 second sphere

14 Partially covered accommodation space

2 links

3 anti-stretch straps

31 flexible section

32 non-flexible segments

4 rolling parts

5 linear slide rail device

51 sliders

511 guide groove

512 turnaround area

52 rails

Detailed ways

Please refer to Fig. 5 to Fig. 9. Fig. 5 to Fig. 9 show the structure of the rolling part retainer of the present invention, which can perform rotary and circular motion on the linear slide rail device 5, which includes: a plurality of spacers 1, two Connecting belt 2, two tension belts 3 and a plurality of rolling parts 4.

The spacer 1 is an upright plate body, which is arranged at linear intervals between the two tension bands 3. The spacer 1 has a plurality of oil storage parts, and the oil storage parts are formed in a concave shape. It is arranged on the surface of the spacer 1 in a manner, and the oil storage part can contain lubricating oil, so as to provide lubricating effect during the relative movement of the components. The oil storage portion includes a first groove 11 and two second grooves 12, the first groove 11 is an open arc groove, and the first groove 11 is recessed downward from the upper end of the spacer 1 It is shaped and communicated with both sides of the spacer 1 . The two second grooves 12 are respectively formed on the front and rear ends of the spacer 1 , adjacent to the contact surface 13 on the end surface of the spacer 1 , and formed by the contact surfaces 13 together.

Each of the front and rear ends of the spacer 1 has a plurality of contact surfaces 13, and the contact surfaces 13 include a first spherical surface 131 and two second spherical surfaces 132, and the two second spherical surfaces 132 are oppositely arranged in the interval. The two side edges of piece 1 are bent and extended outwards. The first spherical surface 131 is formed by bending upwards between the two second spherical surfaces 132 , and is in contact with the upper edge of the spacer 1 .

The first spherical surface 131 and the two second spherical surfaces 132 are shaped corresponding to the rolling member 4, and the first spherical surface 131 and the two second spherical surfaces 132 facing each other between the spacers 1 jointly form a partial covering Type accommodating space 14, the partially covered accommodating space 14 can accommodate the rolling component 4, so that the first spherical surface 131 and the two second spherical surfaces 132 are in partial surface contact with the surface of the rolling component 4 .

The two connecting bands 2 are arranged in pairs on both sides of the spacer 1 and are jointly connected with the contact surface 13. One end of the two connecting bands 2 is adjacent to the second spherical surface 132 at the front and rear ends of the spacer 1 outward. It extends to the tension band 3 in a relatively divergent manner.

The two tensile straps 3 are respectively arranged on two sides of the spacer 1 and connected with the outer edges of the two connecting straps 2 . The cross section of the tension band 3 is circular, and the two tension bands 3 have a flexible section 31 and a non-flexible section 32, and the flexible section 31 is corresponding to the spacer 1 for the tension band 3 There is a longitudinal distance between them, and the other ends of the two connecting straps 2 are jointly connected to the middle position of the flexible section 31 on the tensile strap 3 . The non-flexible section 32 is a longitudinal distance of the tension band 3 corresponding to the side of the spacer 1 and adjacent to the front and rear edges of the spacer 1 . The flexible section 31 is the section with flexure corresponding to the two tension bands 3 and the connecting belt 2 connected thereto, while the non-flexible section 32 is the two tension bands 3 and the The corresponding non-flexing section of the spacer 1 .

Please refer to FIG. 9 , the rolling parts 4 are balls (or rollers) with high roundness, which are rotatably accommodated in the partially covered accommodating space 14 individually, and pass through the The tight partial covering of the contact surface 13 can maintain the center position of the rolling element 4 between the spacers 1 .

Please refer to Fig. 10 and Fig. 11, through the composition of above-mentioned parts, rolling part 4 can be arranged on the linear slide rail device 5, and this linear slide rail device 5 has slide block 51 and slide rail 52, and this slide block 51 has multiple Relative to the formed guide groove 511, the inner edge surface of the guide groove 511 is formed corresponding to the rolling member 4, and the rolling member 4, together with the spacer 1 and other components, are arranged in the guide groove in a series 511, the rolling member 4 and the two tension belts 3 make point contact with the inner edge surface of the guide groove 511, and perform a rotary cycle movement. When the rolling member 4 travels through the turning zone 512 (as shown in Figure 11 shown), the flexible section 31 will make a certain degree of elastic change to conform to the curvature change of the turning zone 512, and at the same time, the contact surface 13 will keep the rolling part 4 at the center between the spacers, so that the The rolling member 4 smoothly passes through the swivel area 512 and performs uninterrupted swivel cycle motion, so that the slider 51 can perform precise adjustment of the relative position on the slide rail 52 and other actions.

The characteristics and functions that the utility model can produce are as follows:

1. Place the rolling parts 4 individually in the partially covered accommodation space 14, and make partial surface contact with the rolling parts 4 through the contact surface 13, which can reduce frictional resistance and prevent pinching at the same time phenomenon and the occurrence of prolapse.

2. The spacer 1 connects the two tensile straps 3 with the two connecting straps 2, which can improve the uniformity of the flexible section 31 of the tensile strap 3, and take into account the consideration of strength, greatly reducing the two tensile straps. The frictional resistance generated by the cyclic movement of the tensile belt 3 effectively overcomes problems such as fracture and plastic deformation at the same time.

3. The geometric shape of the contact surface 13 of the spacer 1 and the two connecting belts 2 is conducive to mold release and injection molding, which can effectively improve the product qualification rate, thereby reducing the manufacturing cost and increasing the profit of the enterprise.

However, the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of patent protection of the present utility model. Therefore, all equivalent changes made by using the description and drawings of the present utility model are all included in the same reason. Within the intended protection scope of the claims of the present utility model, it is stated clearly.

Claims (10)

1. the structure of a rolling member retainer is characterized in that, comprising:

A plurality of spacer elements, it has a plurality of oil storage portion, and described oil storage portion is arranged with moulding by described spacer surface, and the rear and front end face of described spacer element respectively has a plurality of surface of contact, and relative surface of contact forms local clad type containing space jointly between the described spacer element;

Article two, linking belt, it is arranged at described spacer element both sides in couples;

Article two, tension band, it is arranged at described spacer element both sides respectively, and is connected combination with described two linking belts; And

A plurality of rolling members, it rollably is placed in individually in the described local clad type containing space.

2. the structure of rolling member retainer according to claim 1, it is characterized in that, described oil storage portion comprises one first groove and two second grooves, described first groove is arranged with moulding downwards by described spacer element upper end, and be the arcuate furrow that communicates and open in described spacer element both sides, described two second grooves take shape in the rear and front end face of described spacer element respectively, and are close to described surface of contact and are arranged with moulding jointly.

3. the structure of rolling member retainer according to claim 1, it is characterized in that, described spacer element is linear being spaced between described two tension bands, described surface of contact and the corresponding moulding of described rolling member, and contact with face that the part is done on the surface of described rolling member.

4. the structure of rolling member retainer according to claim 1, it is characterized in that, described surface of contact comprises one first sphere and two second spheres, described two second spheres relatively are arranged at described spacer element both side edges, and be close to the outwardly-bent elongation moulding of described linking belt, described first sphere is by being bent upwards extension between described two second spheres, and joins with described spacer element upper limb.

5. the structure of rolling member retainer according to claim 1 is characterized in that, described linking belt by the outer relative described tension band connection combination that extends to of described spacer element side direction with diverging.

6. the structure of rolling member retainer according to claim 1 is characterized in that, the cross section of described tension band is rounded.

7. the structure of rolling member retainer according to claim 1 is characterized in that, has flexible section on the described tension band, and described flexible section is one section fore-and-aft distance of the described tension band spacing that corresponds to described spacer element.

8. the structure of rolling member retainer according to claim 7 is characterized in that, described linking belt one end is connected combination with described spacer element side, and the described linking belt the other end is connected the place, neutral position that is incorporated into described flexible section with described tension band.

9. the structure of rolling member retainer according to claim 1, it is characterized in that, have the inflexibilty section on the described tension band, described inflexibilty section is one section fore-and-aft distance that described tension band corresponds to described spacer element side and contiguous described spacer element front and rear edge.

10. the structure of rolling member retainer according to claim 1 is characterized in that, described rolling member is ball or roller.

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