Retainer with lubricating effect and linear guide rail

Abstract

The utility model relates to the technical field of linear guide rails, in particular to a retainer with a lubricating effect and a linear guide rail. The holder with the lubricating effect comprises a holder body of an integrated structure, the holder body is provided with two parallel and opposite holding parts and two connecting parts connected to the two ends of the two holding parts respectively, each holding part comprises a first holding rod and a second holding rod which are distributed up and down, and each connecting part comprises a first matching section and two second matching sections. The first matching section is arranged above the first holding rod, the two second matching sections are arranged on the two sides of the first matching section and extend downwards to the second holding rod, an arc-shaped opening is formed in the portion, between the first holding rod and the second holding rod, of the second matching section, and a circulation guide part is formed in the portion, on the outer side of the arc-shaped opening, of the second matching section in a protruding mode. A channel hole is formed in the matching section II on the outer side of the circulating guide part; and an oil groove is formed in the top of the retaining rod I along the length direction. The retainer is detachable and easy to operate, and the lubricating effect of each rolling body can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of linear guide rails, in particular to a retaining frame and a linear guide rail with lubrication effect. Background Art

[0002] Currently, in the field of linear guides, lubrication circuits are typically located on the return cap, through which oil or grease lubricates the rolling elements (typically steel balls). However, this lubrication method has a drawback: it is only suitable for lubricating steel balls during long-stroke motion. During short-stroke motion, some steel balls in the channel fail to reach the return cap, preventing lubrication. Over time, this can easily cause irreversible damage to individual steel balls, such as pitting and surface peeling.

[0003] The prior art provides a linear guide lubrication structure that places a lubricating sheet between the slider's circulation channels to lubricate the steel balls. However, due to the limited lubricating oil stored in the sheet, it is difficult to ensure long-term lubrication of the steel balls, requiring frequent replacement. Furthermore, the sheet's placement inside the slider makes replacement time-consuming, significantly inconvenient for customers. Furthermore, the large number of parts increases manufacturing costs.

[0004] In addition, the existing micro guide rail uses a wire cage to hold the steel ball, and the contact between the two is point contact. During installation, one end of the wire cage needs to be manually bent. This operation can easily cause the steel wire to bend, causing the contact point between the wire cage and the steel ball to shift. The contact point is no longer on the center line of the steel ball, and the steel ball will fall. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to solve the problems existing in the prior art in the above-mentioned background technology, a retaining rack with a lubricating effect is provided.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a retaining rack with a lubricating effect, including a retaining rack body of an integral structure, the retaining rack body having two parallel and oppositely arranged retaining parts and two connecting parts respectively connected to the two ends of the two retaining parts, the retaining part including a retaining rod 1 and a retaining rod 2 distributed up and down, the connecting part including a mating segment 1 and two mating segments 2, the mating segment 1 is arranged above the retaining rod 1, the two mating segments 2 are arranged on both sides of the mating segment 1 and extend downward to the retaining rod 2, an arc-shaped opening is provided on the mating segment 2 between the retaining rod 1 and the retaining rod 2, a circulation guide part is protruded from the mating segment 2 outside the arc-shaped opening, a channel hole is provided on the mating segment 2 outside the circulation guide part, and an oil groove is provided on the top of the retaining rod 1 along its length direction.

[0007] Furthermore, the thickness of the fitting section is reduced, and an oil inlet hole is provided on the upper portion of the inner wall thereof, and an oil passage is provided on each side of the oil inlet hole, and the oil passage extends obliquely downward to communicate with the oil tank.

[0008] Furthermore, a positioning hole and a threaded hole are provided on the upper portion of the second mating section.

[0009] Furthermore, oil outlet holes are uniformly distributed in the oil tank.

[0010] Furthermore, it also includes an oil cover, which is composed of a bottom plate and vertical plates located at both ends of the bottom plate. The lower surface of the bottom plate protrudes downward near the edge to form a connecting strip, which cooperates with the oil tank.

[0011] Furthermore, a groove is provided on the bottom surface of the connecting strip along its length direction, the longitudinal section of the groove is semicircular, the width of the groove is equal to the width of the oil outlet hole, and the radial axis of the groove is on the same horizontal plane as the center line of the oil outlet hole.

[0012] A linear guide rail is also mentioned, comprising a track, a slider, a return cover, a rolling body and the retaining frame with lubricating effect described in the above scheme. A accommodating groove is provided at the lower part of the slider, and the retaining part of the retaining frame body is placed in the accommodating groove. The connecting part is located between the return cover and the end face of the slider. The sliders on both sides of the accommodating groove are provided with channels running through the two ends of the slider. The channels cooperate with the channel holes of the connecting part, and the rolling body circulates between the channels and the retaining part.

[0013] Furthermore, the slider is provided with a slider positioning hole that matches the positioning hole and a slider threaded hole that matches the threaded hole.

[0014] Furthermore, an oil inlet matching the oil inlet hole is provided on the upper portion of the return cover.

[0015] Furthermore, a concave chamber is provided on the return cover corresponding to the circulation guide portion.

[0016] Beneficial effects of the utility model:

[0017] The retaining frame body of the utility model is set as an integrated structure, which is easy to install and has good firmness; the retaining part is set as retaining rod 1 and retaining rod 2 distributed up and down, so that two points of contact are formed with the rolling body, which can more firmly retain the rolling body; the retaining part and the connecting part are connected together, and there is no need to manually bend the retaining frame for installation, which avoids the risk of scratches and improves efficiency; the arc opening, circulation guide part and channel hole are all arranged on the connecting part, which provide good support and circulation guidance for the rolling body; the oil groove is opened at the top of retaining rod 1, which can lubricate all rolling bodies and ensure the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic structural diagram of a retaining rack with lubricating effect according to a first embodiment of the present invention.

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle cage body.

[0021] Figure 3 yes Figure 2 Schematic diagram of the structure in another direction.

[0022] Figure 4 yes Figure 2 Top view of .

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0024] Figure 6 yes Figure 1 Schematic diagram of the structure of the CPC cover.

[0025] Figure 7 yes Figure 6 side view.

[0026] Figure 8 of Figure 7 Enlarged view of point B in the middle.

[0027] Figure 9 It is a structural schematic diagram of the linear guide rail of embodiment 2 of the present utility model.

[0028] Figure 10 This is a schematic structural diagram of the second embodiment of the utility model when the linear guide rail is used in a horizontal posture.

[0029] Figure 11 This is a structural diagram of the second embodiment of the utility model when the linear guide rail is used in an inverted posture.

[0030] Figure 12 This is a schematic structural diagram of the second embodiment of the utility model when the linear guide rail is used in a vertical posture.

[0031] Figure 13 This is a schematic structural diagram of the linear guide rail of the second embodiment of the present invention when used in a wall-mounted posture.

[0032] In the figure: 1, retainer body; 11, retaining portion; 111, retaining rod 1; 1111, oil groove; 11111, oil outlet hole; 112, retaining rod 2; 12, connecting portion; 121, mating portion 1; 1211, oil inlet hole; 1212, oil passage; 122, mating portion 2; 1221, arc-shaped opening; 1222, circulation guide; 1223, channel hole; 1224, positioning hole; 1225, threaded hole;

[0033] 2. Oil cap; 21. Bottom plate; 211. Connecting strip; 2111. Groove; 22. Vertical plate;

[0034] 3. Track;

[0035] 4. Slider; 41. Accommodation groove; 42. Channel; 43. Slider positioning hole; 44. Slider threaded hole;

[0036] 5. Return cover; 51. Oil inlet; 52. Chamber;

[0037] 6. Rolling elements. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0039] Example 1

[0040] like Figure 1 As shown, a retainer with a lubricating effect includes an integral retainer body 1 and an oil cover 2. The retainer body 1 has two parallel and opposite retaining portions 11 and two connecting portions 12 respectively connected to the two ends of the two retaining portions 11. The oil cover 2 is installed on the retaining portion 11 and is located between the two connecting portions 12.

[0041] Specifically, if Figure 2 and Figure 3As shown, the retaining portion 11 includes a first retaining rod 111 and a second retaining rod 112, arranged vertically. These rods achieve two-point contact with the rolling element 6, ensuring a more secure hold. The connecting portion 12 includes a first mating segment 121 and two second mating segments 122. The first mating segment 121 is positioned above the first retaining rod 111. The thickness of the first mating segment 121 is reduced to mate with the vertical plate 22 of the oil cap 2. The sum of the thicknesses of the two segments equals the thickness of the second mating segments 122, ensuring consistent installation. The two mating sections 122 are arranged on both sides of the mating section 121 and extend downward to the retaining rod 112. An arc-shaped opening 1221 is provided on the mating section 122 between the retaining rod 111 and the retaining rod 112. A circulation guide portion 1222 is protruded on the mating section 122 outside the arc-shaped opening 1221. A channel hole 1223 is provided on the mating section 122 outside the circulation guide portion 1222. The middle section of the circulation guide portion 1222 in the vertical direction is concave, which well transitions the arc-shaped opening 1221 and the channel hole 1223. In this way, the rolling body 6 moves along the retaining portion 11 to the arc-shaped opening 1221 and is guided by the circulation guide portion 1222 to roll into the channel hole 1223 very "smoothly" to perform infinite circulation motion.

[0042] like Figure 4 and Figure 5 As shown, the top of the retaining rod 111 is provided with an oil groove 1111 along its length direction, and the oil groove 1111 is evenly distributed with oil outlet holes 11111. Figure 2 and Figure 3 An oil inlet hole 1211 is formed on the upper inner wall of the first mating section 121. An oil passage 1212 is formed on each side of the oil inlet hole 1211. The oil passage 1212 extends obliquely downward and communicates with the oil groove 1111. A positioning hole 1224 and a threaded hole 1225 are formed on the upper portion of the second mating section 122.

[0043] like Figure 6 、 Figure 7 and Figure 8 As shown, the oil cover 2 consists of a base plate 21 and vertical plates 22 located at both ends of the base plate 21. A connecting strip 211 protrudes downward from the lower surface of the base plate 21 near the edge, and the connecting strip 211 cooperates with the oil groove 1111. A groove 2111 is formed along the bottom surface of the connecting strip 211 along its length. The longitudinal cross-section of the groove 2111 is semicircular, and its width is equal to the width of the oil outlet hole 11111. The radial axis of the groove 2111 is coplanar with the centerline of the oil outlet hole 11111. The oil cover 2 can completely cover the oil passage 1212 and the oil groove 1111, preventing the lubricating oil from leaking out. The groove 2111 is arranged in this way to ensure lubrication of each rolling element 6 on the retaining portion 11.

[0044] Example 2

[0045] like Figure 9As shown, a linear guide includes a track 3, a slider 4, a return cover 5, a rolling element 6, and a retaining frame with a lubricating effect according to the first embodiment. A receiving groove 41 is provided at the bottom of the slider 4. The retaining portion 11 of the retaining frame body 1 is placed in the receiving groove 41. The connecting portion 12 is located between the return cover 5 and the end face of the slider 4. The sliders 4 on both sides of the receiving groove 41 are provided with channels 42 that pass through both ends of the slider 4. The channels 42 cooperate with the channel holes 1223 of the connecting portion 12 to form a circulation channel for the rolling element 6. The rolling element 6 circulates between the channels 42 and the retaining frame 11. The slider 4 is provided with a slider positioning hole 43 that cooperates with the positioning hole 1224 and a slider threaded hole 44 that cooperates with the threaded hole 1225. An oil inlet 51 cooperating with the oil inlet hole 1211 is provided on the upper portion of the return cover 5 , and a concave chamber 52 is provided on the return cover 5 corresponding to the circulation guide portion 1222 so that the rolling element 6 can roll there without obstruction.

[0046] During the specific installation, first insert the connecting strip 211 of the oil cover 2 into the oil groove 1111 of the retaining rod 111 on the retaining frame body 1 to complete the assembly of the two to form the retaining frame with a lubricating effect of the first embodiment, and then install the retaining frame with a lubricating effect into the receiving groove 41 of the slider 4 from the bottom, align the positioning hole 1224, the threaded hole 1225, and the channel hole 1223 with the slider positioning hole 43, the slider threaded hole 44 and the channel 42 on the slider 2, and then on the two end surfaces of the slider 4. Two return covers 5 are installed on top to fix the retaining frame with lubricating effect, completing the assembly of the linear guide rail; in actual use, the lubricating oil is injected from the oil inlet 51 of the return cover 5, flows through the oil inlet hole 1211 to the oil passages 1212 on both sides, then flows into the oil groove 1111 to fill the entire oil groove 1111, and then seeps out through the oil outlet hole 11111 to evenly lubricate the rolling element 5, and the rolling element 5 enters the groove 42 to ensure the lubrication effect of the rolling element 5 in the groove 42, which is suitable for short-stroke movement.

[0047] Since the oil cover 2 is provided, the cooperation with the matching section 121 and the oil groove 1111 can prevent the lubricating oil from leaking out, ensuring the lubrication effect of each rolling element 6 to meet the requirements. Figures 10 to 13 Different installation postures and good use effect.

[0048] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A retainer with a lubricating effect, characterized in that: The invention relates to a holder body (1) having an integral structure, wherein the holder body (1) has two parallel and oppositely arranged holding portions (11) and two connecting portions (12) respectively connected to both ends of the two holding portions (11), wherein the holding portion (11) comprises a holding rod 1 (111) and a holding rod 2 (112) distributed in an upper and lower manner, and the connecting portion (12) comprises a matching section 1 (121) and two matching sections 2 (122), wherein the matching section 1 (121) is arranged above the holding rod 1 (111), and the two matching sections 2 (122) are arranged between the matching section 1 and the holding rod 1 (111). The two sides of the retaining rod (121) extend downward to the retaining rod (112), and an arc-shaped opening (1221) is provided on the matching section (122) between the retaining rod (111) and the retaining rod (112). A circulation guide portion (1222) is protruded on the matching section (122) outside the arc-shaped opening (1221), and a channel hole (1223) is provided on the matching section (122) outside the circulation guide portion (1222). The top of the retaining rod (111) is provided with an oil groove (1111) along its length direction.

2. The retainer with lubricating effect according to claim 1, characterized in that: The thickness of the first fitting section (121) is reduced, and an oil inlet hole (1211) is provided on the upper portion of its inner wall. An oil passage (1212) is provided on each side of the oil inlet hole (1211), and the oil passage (1212) extends obliquely downward to communicate with the oil groove (1111).

3. The retainer with lubricating effect according to claim 1, characterized in that: A positioning hole (1224) and a threaded hole (1225) are provided on the upper portion of the second matching section (122).

4. The retainer with lubricating effect according to claim 1, characterized in that: Oil outlet holes (11111) are evenly distributed in the oil groove (1111).

5. The retainer with lubricating effect according to claim 4, characterized in that: The oil cover (2) is also included. The oil cover (2) is composed of a bottom plate (21) and vertical plates (22) located at both ends of the bottom plate (21). A connecting strip (211) is formed on the lower surface of the bottom plate (21) near the edge and protrudes downward. The connecting strip (211) cooperates with the oil groove (1111).

6. The retainer with lubricating effect according to claim 5, characterized in that: A groove (2111) is provided on the bottom surface of the connecting strip (211) along its length direction. The longitudinal section of the groove (2111) is semicircular, and its width is equal to the width of the oil outlet hole (11111). The radial axis of the groove (2111) and the center line of the oil outlet hole (11111) are on the same horizontal plane.

7. A linear guide rail, characterized in that: The invention comprises a rail (3), a slider (4), a return cover (5), a rolling element (6) and a retaining frame with a lubricating effect according to any one of claims 1 to 6, wherein a receiving groove (41) is provided at the lower portion of the slider (4), a retaining portion (11) of the retaining frame body (1) is placed in the receiving groove (41), a connecting portion (12) is located between the return cover (5) and the end face of the slider (4), and grooves (42) passing through both ends of the slider (4) are provided on the sliders (4) on both sides of the receiving groove (41), the grooves (42) cooperate with the groove holes (1223) of the connecting portion (12), and the rolling element (6) circulates between the grooves (42) and the retaining portion (11).

8. The linear guide rail according to claim 7, wherein: The slider (4) is provided with a slider positioning hole (43) that matches the positioning hole (1224) and a slider threaded hole (44) that matches the threaded hole (1225).

9. The linear guide rail according to claim 7, wherein: An oil inlet (51) matching the oil inlet hole (1211) is provided on the upper portion of the return cover (5).

10. The linear guide rail according to claim 7, wherein: The return cover (5) is provided with a concave chamber (52) corresponding to the circulation guide portion (1222).

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