Linear guide rail retainer and linear guide rail

Abstract

The utility model discloses a linear guide rail retainer and a linear guide rail, and belongs to the technical field of retainers. The retainer comprises a retainer body, a plurality of retainer rings and a plurality of retainer rings, the retainer body is provided with a plurality of pocket holes, and the pocket holes contain rolling bodies; the middles of the connecting parts are connected with the frame body, the connecting parts are located on the two sides of the frame body, and the thickness of the connecting parts is larger than that of the frame body; and the rib plate is connected with the frame body, and the rolling body is wrapped by the rib plate. The technical problem that an existing linear guide rail retainer is prone to deformation is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of retainer, especially to a linear guide rail retainer and linear guide rail. BACKGROUND

[0002] Linear guide rail (Linear Guide) is a kind of precision machinery transmission component, is used to realize the high precision, high rigidity, low friction linear motion in equipment.

[0003] Retainer is the indispensable key component in linear guide rail, and its core function is to constrain the motion trajectory and distribution state of rolling body (ball, roller or needle), which is directly related to the precision, service life and stability of guide rail.

[0004] The retainer in linear guide rail, because the slider will frequently slip, after a period of use, the retainer can be deformed, and then affect the smoothness of drawer opening and closing, therefore, the current linear guide rail retainer has the technical problem of easy deformation. UTILITY MODEL CONTENTS

[0005] The utility model discloses a linear guide rail retainer and linear guide rail, which aims at solving the technical problem of easy deformation of the current linear guide rail retainer.

[0006] To achieve the above-mentioned purpose, the linear guide rail retainer provided by the utility model comprises:

[0007] Frame body, the frame body is provided with a plurality of pockets, and the pockets accommodate rolling bodies;

[0008] Connecting part, the middle part of the connecting part is connected with the frame body, the connecting part is located on both sides of the frame body, and the thickness of the connecting part is greater than that of the frame body;

[0009] Rib plate, the rib plate is connected with the frame body, and the rib plate wraps the rolling body.

[0010] Optionally, in an embodiment of the utility model, the rib plate comprises:

[0011] Single-edge rib plate, the single-edge rib plate is arranged at both ends of the frame body;

[0012] Double-edge rib plate, the double-edge rib plate is arranged between two single-edge rib plates, the double-edge rib plate is in a horn structure, and the small end of the double-edge rib plate is connected with the frame body.

[0013] Optionally, in an embodiment of the utility model, the rolling body is a spherical rolling body.

[0014] Optionally, in an embodiment of the utility model, the radius of the rolling body is r, the thickness of the rib plate is d, r=(2.2~2.4)d.

[0015] Optionally, in an embodiment of the utility model, an oil passage is formed at the connection between the rib plate and the frame body, and the oil passage is a through structure.

[0016] Optionally, in an embodiment of the utility model, the connection between the frame body and the rib plate is a fillet, and the oil passage is formed at the center of the fillet.

[0017] Optionally, in an embodiment of the utility model, the connecting part is a cuboid structure.

[0018] Optionally, in an embodiment of the utility model, the retainer is an integral structure.

[0019] To achieve the above object, the utility model further provides a linear guide rail, which comprises the linear guide rail retainer as described above.

[0020] Compared with the prior art, the utility model can at least realize the following beneficial effects. The retainer structure provided by the utility model comprises a frame body, a connecting part and a rib plate. The frame body is provided with a pocket hole for accommodating a rolling body and limiting the movement of the rolling body to avoid slipping during movement. The rib plate is connected with the frame body and wraps the rolling body to a certain extent to further limit the rolling body. The connecting part is used for connecting with a sliding block. In this scheme, the connecting part is thickened to have a thickness greater than that of the frame body, and the connection between the frame body and the connecting part is located at the middle of the connecting part. Thickening the connecting part can significantly improve the stability of the retainer under heavy load or impact working conditions by enhancing the structural rigidity and anti-deformation ability, avoid deformation of the retainer and solve the technical problem of easy deformation of the retainer. The thicker side wall not only disperses the load distribution of the rolling body and reduces local stress concentration, but also suppresses vibration and reduces rolling body collision noise to improve running stability. At the same time, the thickened connecting part can optimize the lubricant retention effect, reduce friction and wear and reduce heat accumulation, so that the retainer can be suitable for high-speed long-stroke working environment. In addition, its enhanced impact resistance can absorb energy under sudden load to avoid cracking or plastic deformation of the retainer, and the higher rigidity can also accurately constrain the rolling body movement track to reduce the deviation error caused by deformation. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0022] Figure 1 It is a perspective view of the linear guide rail retainer of the present application.

[0023] Figure 2 It is Figure 1 It is a local enlarged view of A in the middle.

[0024] Figure 3 It is a structure schematic view of the linear guide rail retainer after installing the rolling body.

[0025] Figure 4 It is a structure schematic view of one end of the linear guide rail retainer of the present application.

[0026] Explanation of reference numerals:

[0027] 100, frame body; 110, pocket hole; 200, connecting part; 310, single-side rib plate; 320, double-side rib plate; 400, rolling body; 500, oil channel;

[0028] r, radius of the rolling body; d, thickness of the rib plate.

[0029] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be broad sense understanding, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0033] In addition, if the embodiment of the utility model involves "first", "second" and the like, the "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled person in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0034] Referring to Figures 1-4 The utility model proposes a linear guide rail retainer, including:

[0035] Frame body 100, frame body 100 is set with multiple pockets 110, and the pocket 110 contains the rolling body 400;

[0036] Connecting portion 200, the middle part of connecting portion 200 is connected with frame body 100, and connecting portion 200 is located on both sides of frame body 100, and the thickness of connecting portion 200 is greater than that of frame body 100;

[0037] Rib plate, rib plate is connected with frame body 100, and rib plate wraps the rolling body 400.

[0038] The cage structure comprises a cage body 100, a connecting portion 200 and a rib plate. The cage body 100 is provided with a pocket 110 for accommodating the rolling element 400 and limiting the movement of the rolling element 400 to avoid slipping during movement. The rib plate is connected to the cage body 100 and wraps the rolling element 400 to a certain extent to further limit the rolling element 400. The connecting portion 200 is used to connect with the sliding block. In this scheme, the connecting portion 200 is thickened to have a thickness greater than that of the cage body 100, and the connecting portion 200 is connected to the middle of the cage body 100. The thickened connecting portion 200 can significantly improve the stability of the cage under heavy load or impact working conditions by enhancing the structural rigidity and anti-deformation ability, avoiding deformation of the cage and solving the technical problem of easy deformation of the cage. The thicker side wall not only disperses the load distribution of the rolling element 400 and reduces local stress concentration, but also suppresses vibration and reduces collision noise of the rolling element 400 to improve running stability. At the same time, the thickened connecting portion 200 can optimize the retention effect of lubricant, reduce friction and wear, and reduce heat accumulation, so that the cage can be applied to high-speed long-stroke working environment. In addition, the enhanced impact resistance can absorb energy under sudden load to avoid cracking or plastic deformation of the cage, and the higher rigidity can also accurately constrain the movement trajectory of the rolling element 400 to reduce the deviation error caused by deformation.

[0039] Specifically, the cage body 100 is linearly extended in one direction. It can be understood that the extension length of the cage body 100 can be flexibly selected according to different application environments.

[0040] The connecting portion 200 is a cuboid structure, which is simple in structure and easy to process. In addition, the connecting portion 200 is used to install the cage as a whole into the sliding block, and the connecting portion 200 of the structure can be directly clamped into the corresponding connecting structure of the sliding block.

[0041] Further, due to the one-way extension characteristic of the cage body 100, the rib plate is designed as a single-plate rib plate and a double-sided rib plate 320. The single-sided rib plate 310 is arranged at both ends of the cage body 100 and extends from the end to the inside of the cage body 100 to wrap the rolling element 400 and avoid protruding from the cage body 100 in the length direction.

[0042] The double-sided rib plate 320 is arranged between the two single-sided rib plates 310. Specifically, one double-sided rib plate 320 is arranged between the two pockets 110, and the double-sided rib plate 320 extends to both sides of the pocket 110 to wrap the rolling element 400 on both sides simultaneously.

[0043] Specifically, the double-sided rib plate 320 has a whole horn structure, and the small end of the double-sided rib plate 320 is connected to the cage body 100.

[0044] The trumpet-shaped double-side rib plate 320 has a widening structure, which can increase the wrapping area of the rolling body 400, apply a constraint in the same direction as the movement direction to the rolling body 400 during the movement of the rolling body 400, inhibit the deviation tendency of the rolling body 400, and ensure the accurate rolling of the rolling body 400 along the preset track.

[0045] The large end of the double-side rib plate 320 extends outward, thereby increasing the contact area of the double-side rib plate 320 and the rolling body 400. The dynamic load of the rolling body 400 during operation can be diffused along the rib plate in a gradient manner, thereby avoiding stress concentration.

[0046] In addition, during the movement of the rolling body 400, the lubricating oil can be guided to form a directional oil film along the surface of the rib plate, thereby increasing the residence time of the lubricating oil in the contact area. In combination with the widening space structure, the lubricating oil can be reduced due to the centrifugal force, and sufficient lubricating oil can be ensured between the rolling body 400 and the rib plate.

[0047] Further, in a preferred embodiment, the rolling body 400 in the retainer is a ball. Compared with other types of rolling bodies 400, the point contact characteristic of the ball and the guide rail track can significantly reduce the rolling resistance, reduce energy loss, support high-speed and high-acceleration movement, and reduce temperature rise and wear.

[0048] Specifically, the radius of the ball is r, and the thickness of the rib plate is d, which satisfies r=(2.2-2.4)d. The radius of the ball is greater than the thickness of the rib plate, that is, the ball protrudes from the rib plate after installation to contact the guide rail track.

[0049] In addition to the wrapping effect of the rib plate on the rolling body 400, the rib plate also has the effect of avoiding excessive deformation of the retainer. When the retainer deforms to a certain degree, the rib plate contacts the track, thereby avoiding further deformation of the retainer. Specifically, the thickness of the rib plate is limited by the radius parameter of the ball, which can ensure the wrapping of the rib plate on the rolling body 400 and make the ball protrude from the rib plate by an appropriate length to facilitate the movement of the ball under normal conditions.

[0050] Further, to improve the flowability of the lubricating oil, an oil passage 500 is provided at the connection between the rib plate and the retainer body 100. The oil passage 500 is a through structure, that is, at least one end of the oil passage 500 is in communication with the pocket hole 110. The oil passage 500 provides a path for the flow of the lubricating oil, so that the lubricating oil can flow quickly and be replenished quickly, thereby ensuring that the ball has sufficient lubricating oil, and improving the heat dissipation effect by increasing the flow rate of the lubricating oil.

[0051] Specifically, the connecting part of the frame body 100 and the rib plate is a rounded structure. Although the single-side rib plate 310 is not a horn-shaped structure, the single-side rib plate 310 and the double-side rib plate 320 are connected to the frame body 100 at the small end. In order to avoid the stress concentration at the small end leading to fracture, a rounded corner is used instead of a right angle or a sharp corner connection, effectively eliminating the stress mutation, so that the load is smoothly transitioned along the rounded surface.

[0052] In addition, after the oil groove 500 is opened, the structural strength of the cage as a whole will be inevitably affected. In order to weaken the influence, the oil groove 500 is designed at the center position of the rounded surface, which has the maximum thickness, and the influence on the structural strength after the oil groove 500 is opened is the smallest.

[0053] Further, the cage is an integral structure. The overall structure of the cage in the present scheme is relatively simple, and there is no complex structure part, so it is not necessary to separately process and splice a certain part. The cage is integrally formed, avoiding fatigue fracture of the connecting part of the split structure caused by stress concentration, so that the overall rigidity of the cage is improved. In addition, the continuous material structure enables the load of the rolling body 400 to be uniformly transmitted along the overall structure, improving the anti-deformation ability of the cage.

[0054] The utility model embodiment further proposes a linear guide rail, the linear guide rail includes the cage structure as described above. Since the linear guide rail adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0055] The above-mentioned is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by the utility model specification and the attached drawings under the inventive concept of the utility model, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A linear guide rail retainer characterized by, The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer.

2. The linear guide rail retainer of claim 1, wherein, The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer.

3. The linear guide rail retainer of claim 1, wherein The application relates to a linear guide rail retainer.

4. The linear guide rail retainer of claim 3, wherein The application relates to a linear guide rail retainer.

5. The linear guide rail retainer of claim 1, wherein The application relates to a linear guide rail retainer.

6. The linear guide rail retainer of claim 5, wherein The application relates to a linear guide rail retainer.

7. The linear guide rail retainer of claim 1, wherein The application relates to a linear guide rail retainer.

8. The linear guide rail retainer of claim 1, wherein The application relates to a linear guide rail retainer.

9. A linear guide rail characterized by comprising: The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a linear guide rail retainer. The application relates to a

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