Rolling body retainer, sliding part and limited stroke sliding rail

Abstract

The invention provides a rolling body retainer, a sliding piece and a limited stroke sliding rail, a rolling body is arranged in the rolling body retainer to form the sliding piece, and the sliding piece is arranged between two fixed-length sliding rails to enable the two fixed-length sliding rails to stably and relatively move to form the limited stroke sliding rail. The rolling body retainer comprises a body, a plurality of containing grooves distributed in the body and used for containing rolling bodies respectively and a plurality of holes formed in the body and located between the adjacent containing grooves, the holes are communicated with the adjacent containing grooves, and lubricating grease or porous lubricants can be stored in the holes. And a lubricating effect can be provided when the rolling body rolls. In the longitudinal section, the rolling body retainer is provided with a plurality of protruding parts which protrude away from the body, and the protruding parts continuously extend to span all adjacent containing grooves, so that the rolling body retainer has better rigidity, more containing grooves can be formed to contain more rolling bodies, and the load capacity of the limited stroke sliding rail is improved.

Description

Technical Field

[0001] The present invention relates to a rolling element retainer, a sliding member and a limited stroke slide rail, in particular, the rolling element retainer has a receiving groove for receiving the rolling element, adjacent receiving grooves have connected holes for storing lubricating grease or porous lubricants to provide lubrication for the rolling element when rolling, and the rolling element retainer is provided with a protrusion that continuously extends across all adjacent receiving grooves, so that the rolling element retainer can have higher rigidity. Background Art

[0002] The limited stroke slide includes two fixed-length slides that can move relative to each other, and a sliding member that can assist the relative movement of the two fixed-length slides is arranged between the two fixed-length slides. The sliding member includes a retainer of a specific length and a plurality of rolling bodies arranged at intervals by the retainer. The rolling bodies roll on the slide surface and bear the load. Limited stroke slides are generally used in processing processes with a short moving distance.

[0003] U.S. Patent No. US08360644B2 "Linear motion guide unit with retainer" uses a flat retainer with openings arranged along the length direction. The roller is obliquely arranged in each opening, and the periphery of the opening has adjacent recesses (recess 23) and lips (lips 2) for placing the rolling body and limiting the position.

[0004] The retainer of the above-mentioned US Patent No. US08360644B2 is in the form of a flat plate, so the thickness of the retainer is relatively thin and the rigidity is relatively poor. In order to maintain sufficient strength of the retainer, the number of openings arranged in the length direction of the retainer must be reduced and only a smaller number of rolling elements can be placed, resulting in a lower load on the limited stroke slide rail. In addition, the case did not consider how to lubricate the rolling elements to maintain smooth rolling.

[0005] German Patent No. DE3709039C2 "Linear Roller Bearing Cage", the cage in this case is composed of cage units each having a receiving groove connected in series, and rolling elements are placed in the receiving groove. The adjacent cage units are elastically connected to the receiving hole (hole 16) by the end face of the clamping part (journal 13), and in order to facilitate the elastic deformation of the clamping part (journal 13) and clamp it into the said clamping hole (hole 16), the clamping part (journal 13) is provided with a through hole to accommodate the space required for deformation, so that after the adjacent cage units are connected in series, the through hole will connect the receiving grooves of the adjacent cage units.

[0006] The retainer of the German patent DE3709039C2 is a wrapping type (pocket type) for the rolling element and has higher rigidity than the aforementioned US patent US08360644B2. However, the through hole of the snap-fit ​​part (journal 13) in the case is used to accommodate the space required for the deformation of the snap-fit ​​part (journal 13). The case does not consider how to lubricate the rolling element when the rolling element rolls to ensure smooth rolling of the rolling element.

[0007] Japanese Patent Laid-Open No. JP2021012648 "Linear Guide Device", the retainer of the case is composed of a first split body and a second split body connected together. Fig. 9 and Fig.10 In the embodiment, the rectangular retainer body 40 has an anti-dropout portion extending in the longitudinal direction at the upper and lower corners, and a protruding portion of the adjacent receiving groove segment at the left and right corners in the transverse direction. The anti-dropout portion and the segmented protruding portion can limit the rolling body. In addition, the retainer of this case is provided with a toothed wheel for limiting sliding, and a recess 25 is formed on the first segment and the second segment of the retainer to assemble the shaft of the toothed wheel.

[0008] In the retainer of the above-mentioned Japanese Patent Special Opening No. JP2021012648, the structural rigidity of the retainer can be further improved by limiting the rolling elements through the anti-dropping portion and the segmented protrusions. However, the protrusions of the left and right segments in this case do not extend across all the rolling elements in their entirety, and the tensile strength against the axial tension generated by the axial slip of the slide rail is low. In addition, this case does not consider how to lubricate the rolling elements when they roll to ensure smooth rolling of the rolling elements. Furthermore, when the retainer in this case is assembled with a toothed wheel that limits sliding, the shaft of the toothed wheel still needs to be assembled on the recess 25 of the retainer through an external assembly method, which may cause instability of the toothed wheel. Summary of the invention

[0009] Based on the above-mentioned deficiencies of the previous case, the object of the present invention is to provide a rolling element retainer, a sliding member and a limited stroke slide rail.

[0010] The present invention provides a rolling element retainer, comprising:

[0011] A body extends along a path. In a longitudinal section, the body is polygonal and has at least four protrusions protruding away from the body. A plurality of receiving grooves are distributed along the path in the body and the protrusions. Each of the receiving grooves is separated by a spacing. Each of the receiving grooves is used to accommodate a rolling body. A plurality of holes are formed on the body and located between the receiving grooves. The holes are connected to the receiving grooves. The holes are used to store lubricating grease or a porous lubricant. At least one of the protrusions extends continuously on the path and crosses all adjacent receiving grooves.

[0012] Furthermore, the width of the accommodating groove is slightly larger than the width of the rolling body, and the accommodating groove has an opening on the main body, the width of the opening is slightly smaller than the width of the rolling body, and the rolling body can be placed in the accommodating groove through the opening by applying force without falling off freely, and the rolling body has a rolling surface protruding from the main body.

[0013] Furthermore, the rolling element retainer includes a first segmentation portion and a second segmentation portion extending along the path, and the first segmentation portion and the second segmentation portion are combined with each other on a combination surface by corresponding combination portions to form the rolling element retainer.

[0014] Furthermore, the body is provided with an integrally formed spindle in the longitudinal direction, the spindle is pivotally connected to a rotatable toothed wheel, the body is provided with a notch at a position corresponding to the toothed wheel, and a part of the toothed wheel is exposed in the notch. The rolling element retainer includes a first segmentation portion and a second segmentation portion extending along the path, and the first segmentation portion and the second segmentation portion are combined with each other on a combination surface by corresponding combination portions to form the rolling element retainer, and the combination surface is parallel to the axis of the toothed wheel.

[0015] Furthermore, the path is a straight line path or an arc path.

[0016] The present invention further provides a sliding member, comprising the above-mentioned rolling element retainer, wherein each of the receiving grooves receives the rolling element.

[0017] Furthermore, the rolling body is a roller or a ball.

[0018] Furthermore, in the adjacent rolling elements, the rolling axes are staggered.

[0019] The present invention further provides a limited-stroke slide rail, comprising the aforementioned rolling body retainer, wherein each of the accommodating grooves accommodates the rolling body; and two fixed-length slide rails, wherein the opposite surfaces of the two fixed-length slide rails are respectively provided with a sliding groove, and in the longitudinal direction, the sliding grooves of the two fixed-length slide rails jointly define a sliding space, and the contour of the sliding space corresponds to the contour of the rolling body retainer; the rolling body retainer is arranged in the sliding space, and the rolling body rolls on the sliding groove; in the longitudinal direction, the sliding space forms a slide rail gap and a yield groove, and the protrusion is located in the slide rail gap and the yield groove.

[0020] Furthermore, the two fixed-length slide rails are respectively provided with a tooth groove corresponding to the toothed wheel, and the toothed wheel is meshed with the tooth groove.

[0021] The following effects can be achieved according to the above technical features:

[0022] 1. The rolling element retainer has a plurality of holes formed between the receiving grooves of the body and connected to adjacent receiving grooves. Lubricating grease or porous lubricants can be stored in the holes to provide lubrication when the rolling element rolls, thereby avoiding vibration caused by the relative sliding of the two fixed-length slide rails due to the uneven rolling of the rolling element.

[0023] 2. In the longitudinal section of the rolling element retainer, each corner of each receiving groove has a protrusion passing through along the axial direction, surrounding all the protrusions distributed at the corners of the receiving groove, so that all adjacent receiving grooves have better connection strength, which can effectively improve the rigidity of the rolling element retainer and also give the rolling element retainer greater axial tensile strength. With the increased rigidity brought by the protrusions, the rolling element retainer of the same length can be provided with more receiving grooves to accommodate more rolling elements, so that the limited stroke slide rail can have a greater load capacity and avoid the body from being broken due to external forces during assembly or use.

[0024] 3. In the longitudinal section of the rolling element retainer, the accommodation space of the accommodation groove is expanded to the protruding portion, thereby making the exposed surface of the roller have a larger contact range.

[0025] 4. The rolling element retainer is provided with a toothed wheel in the middle section, and the toothed wheel is meshed with the tooth grooves on the two fixed-length slide rails. When the two fixed-length slide rails move relative to each other, the rolling element retainer and the two fixed-length slide rails can move relative to each other at a fixed position without causing creeping. The mandrel of the toothed wheel is integrally formed on the body of the rolling element retainer, and no additional assembly is required, which can ensure the verticality of the mandrel and make the toothed wheel rotate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional appearance diagram of the rolling element retainer and the sliding member according to the first embodiment of the present invention.

[0027] Figure 2 for Figure 1 sectional view of .

[0028] Figure 3 for Figure 2 sectional view of .

[0029] Figure 4 for Figure 2 sectional view of .

[0030] Figure 5 It is a three-dimensional appearance diagram of the limited stroke slide rail according to the first embodiment of the present invention.

[0031] Figure 6 for Figure 5 Front side view.

[0032] Figure 7This is a three-dimensional appearance diagram of a rolling element retainer according to a second embodiment of the present invention.

[0033] Figure 8 for Figure 7 Front side view.

[0034] Fig. 9 for Figure 7 sectional view of .

[0035] Fig.10 This is a three-dimensional appearance diagram of a rolling element retainer according to a second embodiment of the present invention in which rolling elements are installed to form a sliding member.

[0036] Fig.11 This is a three-dimensional appearance diagram of a limited-stroke slide rail according to a second embodiment of the present invention.

[0037] Fig.12 This is a schematic diagram of a third embodiment of the present invention, showing a three-dimensional exploded view of a rolling element retainer composed of two divided parts connected to each other.

[0038] Fig.13 This is a schematic diagram of the third embodiment of the present invention, showing a three-dimensional combination diagram of a rolling element retainer composed of two divided parts connected together.

[0039] Fig.14 This is a schematic diagram of the third embodiment of the present invention, showing a plan view of a rolling element retainer formed by two divided parts butting against each other.

[0040] Fig.15 for Fig.14 sectional view of .

[0041] Fig.16 for Fig.14 sectional view of .

[0042] Fig.17 This is a schematic diagram of a fourth embodiment of the present invention, showing a three-dimensional exploded view of a rolling element retainer formed by two split parts butted against each other.

[0043] Fig.18 for Fig.17 Front view of the middle section.

[0044] Fig.19 for Fig.17 Cross-sectional view of the middle segment.

[0045] Fig. 20 This is a schematic diagram of a fourth embodiment of the present invention, showing a three-dimensional combination diagram of a rolling element retainer formed by two split parts butted against each other.

[0046] Fig.21 This is a schematic diagram of a fourth embodiment of the present invention, showing a plan view of a rolling element retainer formed by two divided parts butting against each other.

[0047] Fig. 22 for Fig.21 sectional view of .

[0048] Fig.23 This is a three-dimensional appearance diagram of a rolling element retainer and a sliding member according to a fifth embodiment of the present invention.

[0049] Fig.24 for Fig.23 sectional view of .

[0050] Fig.25 for Fig.24 sectional view of .

[0051] Fig.26 This is a three-dimensional appearance diagram of a limited-stroke slide rail according to a fifth embodiment of the present invention.

[0052] Fig. 27 for Fig.26 Front side view.

[0053] Fig.28 This is a three-dimensional appearance diagram of a rolling element retainer and a sliding member according to a sixth embodiment of the present invention.

[0054] Fig.29 This is a three-dimensional appearance diagram of a rolling element retainer and a sliding member according to the seventh embodiment of the present invention.

[0055] Description of reference numerals: 10-rolling element retainer; 20-sliding member; 30-limited stroke slide rail; 1-body; 101-first segment; 1011-first assembly boss; 1012-first assembly hole; 1013-first joint surface; 1014-first inner recess; 1015-first embedded block; 1016-first embedded groove; 102-second segment; 1021-second assembly boss; 1022-second assembly hole; 1023-second joint surface; 1024-second inner recess; 102 5-second embedded block; 1026-second embedded groove; 11-corner; 12-protrusion; 121-barb; 13-accommodating groove; 14-hole; 15-opening; 17-spindle; 171-semi-spindle; 18-toothed wheel; 19-notch; 2-rolling element; 21-rolling surface; 3-porous lubricant; 4-fixed-length slide rail; 41-slide groove; 411-slide rail surface; 42-slide space; 421-slide rail gap; 422-allowance groove; 44-tooth groove; A-axial; P-longitudinal; D-spacing. DETAILED DESCRIPTION

[0056] The following embodiments are only used to assist in explaining the rolling element retainer, sliding member and limited stroke slide rail of the present invention, and are not intended to limit the scope of the present invention. In the different embodiments described below, the same elements are given the same reference numerals.

[0057] See also Figure 1As shown, the rolling element retainer 10 and the sliding member 20 of the first embodiment of the present invention are formed in one piece, and include a main body 1, which is polygonal and made of a rigid material such as stainless steel, and the main body 1 extends along a path, and the path can be a straight path or an arc path according to needs. In this embodiment, the extension of the main body 1 along a straight path formed by an axial direction A is taken as an example, and a plurality of rolling elements 2 are placed in the main body 1 of the rolling element retainer 10 to form the sliding member 20. The rolling elements 2 in this embodiment use rollers (such as rollers, balls), and the rolling axes of adjacent rolling elements 2 are staggered, for example, the rolling axes of adjacent rolling elements 2 are staggered at 90 degrees.

[0058] See also Figure 2 and Figure 3 As shown, specifically, in a cross-section along a longitudinal direction P, the main body 1 includes a plurality of corners 11. The main body 1 described in this embodiment is rectangular and includes four corners 11. There are at least four protrusions 12 protruding away from the main body 1. In this embodiment, four protrusions 12 are arranged to protrude away from the main body 1 from each of the corners 11. The rolling element retainer 10 has a plurality of receiving grooves 13 distributed along the axial direction A in the main body 1 and the protruding portion 12. The receiving grooves 13 are spaced apart by a spacing D. The protruding portion 12 extends continuously along the entire length of the axial direction A and spans across all adjacent receiving grooves 13. The width of the receiving grooves 13 is slightly larger than the width of the rolling element 2, so that the rolling element 2 can be respectively received in the receiving grooves 13. When the rolling element 2 is placed in the receiving grooves 13, a rolling surface 21 protrudes from the main body 1. A plurality of holes 14 are formed between the receiving grooves 13 of the main body 1. The holes 14 are connected to the receiving grooves 13. Lubricating grease or porous lubricants can be stored in the holes 14. In this embodiment, a porous lubricant 3 is set as an example.

[0059] See also Figure 4 As shown, in this embodiment, the receiving groove 13 has an opening 15 on the main body 1, and the width of the opening 15 is slightly smaller than the width of the rolling body 2. The main body 1 allows slight elastic deformation, so force can be applied to place the rolling body 2 into the receiving groove 13 through the opening 15, and the rolling body 2 will not fall off freely from the opening 15 after being placed in the receiving groove 13.

[0060] See also Figure 5 and Figure 6As shown, the limited stroke slide rail 30 of the first embodiment of the present invention is to assemble the aforementioned sliding member 20 between two fixed-length slide rails 4 so as to assist the relative movement of the two fixed-length slide rails 4. The opposite surfaces of the two fixed-length slide rails 4 are respectively provided with a sliding groove 41, and the inner surface of the sliding groove 41 is a slide rail surface 411. The sliding grooves 41 of the two fixed-length slide rails 4 jointly define a sliding space 42. The sliding member 20 is arranged in the sliding space 42 so that the rolling body 2 can roll along the slide rail surface 411 of the sliding groove 41. In the longitudinal direction P, the sliding space 42 is formed with a slide rail gap 421 and a groove 422. The aforementioned protrusion 12 is located in the slide rail gap 421 and the groove 422. Figure 6 The two fixed-length slide rails 4 shown are located on the left and right sides, and the grooves 422 are formed on each of the two fixed-length slide rails 4 to accommodate the protrusions 12 on the left and right sides of the rolling body retainer 10, and the two fixed-length slide rails 4 are arranged at intervals to form the slide rail gaps 421 on the upper and lower sides to accommodate the protrusions 12 on the upper and lower sides of the rolling body retainer 10.

[0061] Please Figure 3 As shown, by placing a porous lubricant 3 in the holes 14 connecting adjacent accommodating grooves 13 on the main body 1, a lubrication effect can be provided when the rolling body 2 rolls, thereby preventing the rolling body 2 from rolling unsmoothly and causing the two fixed-length slide rails 4 to vibrate during relative movement.

[0062] See also Figure 7 , Figure 8 and Fig. 9 As shown, a rolling element retainer 10 of the second embodiment of the present invention is provided with a notch 19 in the middle section of the axial direction A of the body 1, and a rotatable toothed wheel 18 is assembled at the notch 19, and a part of the toothed wheel 18 is exposed in the notch 19, and in the longitudinal direction P, the length of the toothed wheel 18 is slightly greater than the protruding length of the two relative protrusions 12. In this embodiment, an integrally formed spindle 17 is provided on the body 1, and the toothed wheel 18 is pivotally connected to the spindle 17. By integrally forming the spindle 17 on the body 1, the toothed wheel 18 can be conveniently assembled on the body 1, and the verticality of the spindle 17 can be ensured, so that the toothed wheel 18 can rotate stably.

[0063] In the second embodiment, all the receiving grooves 13 located on one side of the gear wheel 18 along the axial direction A are a group of "adjacent" receiving grooves 13; all the receiving grooves 13 located on the other side of the gear wheel 18 along the axial direction A are another group of "adjacent" receiving grooves 13. The two receiving grooves 13 closest to the gear wheel 18 separated by the gear wheel 18 are located on the two sides of the gear wheel 18 respectively. The two separated receiving grooves 13 are not adjacent to each other and are not "adjacent" receiving grooves 13 defined in the present invention.

[0064] See also Fig.10 and Fig.11 As shown, a plurality of rolling elements 2 are placed in the body 1 of the rolling element retainer 10 to form the sliding member 20, and the limited stroke slide rail 30 of the second embodiment of the present invention is provided with a tooth groove 44 extending along the axial direction A on the two fixed-length slide rails 4, respectively, and when the sliding member 20 is assembled between the two fixed-length slide rails 4, the toothed wheel 18 is engaged with the tooth groove 44. Thus, through the meshing action of the toothed wheel 18 and the tooth groove 44, when the two fixed-length slide rails 4 move relatively, the sliding member 20 and the two fixed-length slide rails 4 can be kept in a fixed position and move relatively without causing creeping.

[0065] See also Fig.12 and Fig.13 As shown, a rolling element retainer 10 having a toothed wheel 18 according to the third embodiment of the present invention is a modular type, comprising a first segmentation portion 101 and a second segmentation portion 102 extending along the straight path. The first segmentation portion 101 and the second segmentation portion 102 are combined with each other on a combination surface by corresponding combination portions to form the rolling element retainer 10. The joining surface includes a first joining surface 1013 on the first dividing portion 101 and a second joining surface 1023 on the second dividing portion 102. In this embodiment, the first dividing portion 101 and the second dividing portion 102 are shaped like a protrusion 12 cut along the diagonal of the rolling element retainer 10, so that the opposite side of the first dividing portion 101 and the opposite side of the second dividing portion 102 in the cutting direction each have half of the protrusion 12, and the first dividing portion 101 and the second dividing portion 102 become a complete protrusion 12 after docking, and the joining portion includes a plurality of first assembly bosses 1011 and a plurality of first assembly holes 1012 arranged at staggered intervals on the first joining surface 1013, and a plurality of second assembly bosses 1021 and a plurality of second assembly holes 1022 arranged at staggered intervals on the second joining surface 1023, and the first dividing portion 101 and the second dividing portion 102 are docked and combined into the rolling element retainer 10. In this embodiment, a half mandrel 171 is integrally formed on each of the first dividing portion 101 and the second dividing portion 102 .

[0066] See also Fig.14 , Fig.15 and Fig.16As shown, when the first segment 101 is butted with the second segment 102, the first joint surface 1013 and the second joint surface 1023 are fitted to each other, the first assembly boss 1011 is embedded in the second assembly hole 1022, and the second assembly boss 1021 is embedded in the first assembly hole 1012, and the half spindles 171 on the first segment 101 and the second segment 102 are arranged side by side to form the spindle 17 of the toothed wheel 18. In this embodiment, the rolling element 2 and the spindle 17 can be placed on the first segment 101 or the second segment 102 first, and then the second segment 102 or the first segment 101 can be butted and assembled. Therefore, in addition to being easy to form and manufacture the rolling element retainer 10, it is also easy to install the rolling element 2 and the spindle 17.

[0067] See also Fig.17 , Fig.18 and Fig.19As shown, a rolling element retainer 10 having a toothed wheel 18 according to the fourth embodiment of the present invention is a modular type, comprising a first segmentation portion 101 and a second segmentation portion 102 extending along the straight path. The first segmentation portion 101 and the second segmentation portion 102 are combined with each other on a combination surface by corresponding combination portions to form the rolling element retainer 10. The bonding surface includes a first bonding surface 1013 on the first segment 101 and a second bonding surface 1023 on the second segment 102. In this embodiment, the first segment 101 and the second segment 102 are shaped like a protrusion 12 along the diagonal of the rolling element retainer 10, wherein in this embodiment, the first segment 101 and the second segment 102 each have a complete protrusion 12 on the opposite side of the cutting direction. Since the body 1 of the rolling element retainer 10 of this embodiment is polygonal and the protrusion 12 protrudes from the corner 11, a first inner recess 1014 is formed on the protrusion 12 of the first segment 101 in the cutting direction to accommodate the corner 11 of the second segment 102 on the opposite side when the first segment 101 and the second segment 102 are connected, and a protrusion 12 is formed on the protrusion 12 of the second segment 102 in the cutting direction. The second inner recess 1024 is used to accommodate the corner 11 of the first segment 101 on the opposite side when the first segment 101 and the second segment 102 are connected. In this embodiment, a first embedded block 1015 extends from the protruding portion 12 at the opposite ends of the first segment 101, and a corresponding first embedded groove 1016 is provided on the opposite side. A second embedded block 1025 extends from the protruding portion 12 at the opposite ends of the second segment 102, and a corresponding second embedded groove 1026 is provided on the opposite side. The combining portion includes a plurality of first assembly bosses 1011 and a plurality of first assembly holes 1012 arranged adjacent to each other on the first combining surface 1013, and a plurality of second assembly bosses 1021 and a plurality of second assembly holes 1022 arranged adjacent to each other on the second combining surface 1023. The first segment 101 and the second segment 102 are connected to each other and combined into the rolling element retainer 10. In this embodiment, half of the mandrel 171 is integrally formed in each of the first segmentation portion 101 and the second segmentation portion 102. (Since the first segmentation portion 101 and the second segmentation portion 102 are symmetrically arranged, the first segmentation portion 101 can be turned 180 degrees during manufacturing to serve as the second segmentation portion 102. Fig.18 and Fig.19 The first segmentation portion 101 and the second segmentation portion 102 are marked at the same time).

[0068] See also Fig. 20 , Fig.21 and Fig. 22As shown, when the first segmentation portion 101 and the second segmentation portion 102 are butted against each other, the first insert 1015 at the end of the first segmentation portion 101 is embedded in the second insert groove 1026 at the end of the second segmentation portion 102, and the second insert 1025 at the end of the second segmentation portion 102 is embedded in the first insert groove 1016 at the end of the first segmentation portion 101, and the first bonding surface 1013 and the second bonding surface 1023 are fitted to each other, so that the first inner concave portion of the first segmentation portion 101 is 1014 accommodates the corner 11 of the second segment 102 on the opposite side, the second inner recess 1024 of the second segment 102 accommodates the corner 11 of the first segment 101 on the opposite side, the first assembly boss 1011 is embedded in the second assembly hole 1022, and the second assembly boss 1021 is embedded in the first assembly hole 1012, and the half spindles 171 on the first segment 101 and the second segment 102 are arranged side by side to form the spindle 17 of the toothed wheel 18. In this embodiment, the rolling body 2 and the spindle 17 can be placed on the first segment 101 or the second segment 102 first, and then the second segment 102 or the first segment 101 can be docked and assembled, so in addition to being easy to mold and manufacture the rolling body retainer 10, it is also easy to install the rolling body 2 and the spindle 17.

[0069] See also Figure 23 to Figure 25 As shown, the rolling element retainer 10 and the sliding member 20 of the fifth embodiment of the present invention are different from the aforementioned embodiments in that the rolling element 2 of this embodiment uses a ball. This embodiment shows that the present invention can be applied to the rolling elements 2 such as rollers and balls which are most commonly used on linear moving slides.

[0070] See also Fig.26 and Fig. 27 As shown, the limited stroke slide rail 30 of the fifth embodiment of the present invention is to assemble the aforementioned sliding member 20 between two fixed length slide rails 4, and assist the two fixed length slide rails 4 to move relative to each other by the rolling body 2 rolling along the slide rail surface 411.

[0071] See also Fig.28 1 and 2 show a rolling element retainer 10 and a sliding member 20 according to a sixth embodiment of the present invention. In this embodiment, the rolling element 2 uses a ball, and a toothed wheel 18 is provided on the rolling element retainer 10 .

[0072] See also Fig.29 As shown, the rolling element retainer 10 and the sliding member 20 of the seventh embodiment of the present invention, the rolling element 2 of this embodiment uses a ball, and a toothed wheel 18 is provided on the rolling element retainer 10, and the rolling element retainer 10 is composed of the first dividing part 101 and the second dividing part 102 docking.

[0073] Based on the description of the above embodiments, one should be able to fully understand the operation, use and effects of the present invention. The above embodiments are only preferred embodiments of the present invention and should not be used to limit the scope of implementation of the present invention. That is, all simple equivalent changes and modifications made based on the contents of the present invention are within the scope of the present invention.

Claims

1. A rolling element retainer, characterized in that: include: A body extending along a path, wherein in a longitudinal cross section, the body is polygonal and has at least four protrusions protruding away from the body; A plurality of receiving grooves are distributed along the path in the body and the protruding portion, each receiving groove is separated by a distance, and each receiving groove is used to receive a rolling body; A plurality of holes are formed on the body and located between the receiving grooves, the holes are connected to the receiving grooves, and the holes are used to store lubricating grease or a porous lubricant; At least one of the protrusions extends continuously along the path and spans across all adjacent receiving grooves.

2. The rolling element retainer according to claim 1, characterized in that: The width of the receiving groove is greater than the width of the rolling body, and the receiving groove has an opening on the main body, the width of the opening is smaller than the width of the rolling body, and the rolling body can be placed in the receiving groove through the opening by applying force without falling off freely, and the rolling body has a rolling surface protruding from the main body.

3. The rolling element retainer according to claim 1, characterized in that: The invention comprises a first dividing part and a second dividing part extending along the path, and the first dividing part and the second dividing part are combined with each other on a combining surface through corresponding combining parts to form the rolling element retainer.

4. The rolling element retainer according to claim 1, characterized in that: The main body is provided with an integrally formed spindle in the longitudinal direction, the spindle is pivotally connected with a rotatable toothed wheel, the main body is provided with a notch at a position corresponding to the toothed wheel, and a part of the toothed wheel is exposed in the notch.

5. The rolling element retainer according to claim 4, characterized in that: The invention comprises a first segmentation part and a second segmentation part extending along the path, and the first segmentation part and the second segmentation part are combined with each other on a combination surface through corresponding combination parts to form the rolling element retainer, and the combination surface is parallel to the axis of the gear wheel.

6. The rolling element retainer according to claim 1, characterized in that: The path is a straight line path or an arc path.

7. A sliding member, characterized in that: The invention comprises a rolling element retainer as claimed in any one of claims 1 to 6, wherein each of the receiving grooves receives the rolling element.

8. The sliding member according to claim 7, characterized in that: The rolling body is a roller or a ball.

9. The sliding member according to claim 7, characterized in that: The rolling axes of the adjacent rolling elements are staggered.

10. A limited travel slide rail, characterized in that: It comprises a rolling body retainer as described in any one of claims 1 to 3, wherein each of the accommodating grooves accommodates the rolling body; and two fixed-length slide rails, wherein the opposite surfaces of the two fixed-length slide rails are respectively provided with a sliding groove, and in the longitudinal direction, the sliding grooves of the two fixed-length slide rails jointly define a sliding space, and the contour of the sliding space corresponds to the contour of the rolling body retainer; the rolling body retainer is arranged in the sliding space, and the rolling body rolls on the sliding groove; in the longitudinal direction, the sliding space forms a sliding rail gap and a yield groove, and the protrusion is located in the sliding rail gap and the yield groove.

11. A limited travel slide rail, characterized in that: It comprises a rolling body retainer as described in claim 4 or 5, wherein each of the accommodating grooves accommodates the rolling body; and two fixed-length slide rails, wherein the opposite surfaces of the two fixed-length slide rails are respectively provided with a sliding groove, and in the longitudinal direction, the sliding grooves of the two fixed-length slide rails jointly define a sliding space, and the contour of the sliding space corresponds to the contour of the rolling body retainer; the rolling body retainer is arranged in the sliding space, and the rolling body rolls on the sliding groove; in the longitudinal direction, the sliding space forms a sliding rail gap and a yield groove, and the protrusion is located in the sliding rail gap and the yield groove.

12. The travel-limited slide rail according to claim 11, characterized in that: The two fixed-length slide rails are respectively provided with a tooth groove corresponding to the toothed wheel, and the toothed wheel is meshed with the tooth groove.

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