Linear guide rail

Abstract

The utility model belongs to the technical field of transmission parts, and particularly relates to a linear guide rail, which comprises a guide rail main body, the sliding block is movably arranged on the guide rail body and matched with the guide face, returners are arranged at the two ends of the sliding block, and ball circulation loops are arranged in the sliding block and the returners; the lubricating mechanism comprises a lubricant coating body arranged on the circulating loop; the heat dissipation mechanism is arranged in the guide rail main body and is used for absorbing heat on the guide rail main body; wherein a rolling body is arranged in the ball circulation loop, a lubricant can be coated on the rolling body by the lubricant coating body, and compared with the prior art, the long-acting lubricating property of the linear guide rail is improved, and the stability, the precision and the service life of the linear guide rail can be prevented from being easily influenced by insufficient heat dissipation.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission parts, and particularly relates to a linear guide rail. Background Art

[0002] Linear guide rails are widely used in industrial applications, especially in fields such as numerical control machine tools, automation equipment, and robots. For example, a flattened linear guide rail disclosed in the patent with the application number CN201320139202.5 includes a rail and a slider. The slider has two rows of roller chains and two rows of ball chains. Both sides of the rail have a flange. The upper surface of the flange is a roller running surface that cooperates with the roller chain, and the lower surface of the flange is a ball running surface that cooperates with the ball chain. The roller chain and the ball chain are clamped between the upper and lower surfaces of the flange. Returners are installed at both ends of the slider, and the slider and the returners form four circulation loops for the two rows of roller chains and the two rows of ball chains to circulate.

[0003] During the use of this existing linear guide rail, lubricant is generally applied to the guide rail surface through a lubrication mechanism. However, the lubrication of the rolling elements is not sufficient, and the long-term lubricity of the linear guide rail is relatively low. At the same time, the linear guide rail lacks an effective heat dissipation effect, and the stability, accuracy, and service life of the linear guide rail are easily affected due to insufficient heat dissipation. Therefore, it is necessary to make improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a linear guide rail aiming at the above existing technical problems, so as to improve the long-term lubricity and heat dissipation effect of the linear guide rail.

[0005] In view of this, the utility model provides a linear guide rail, including:

[0006] A guide rail main body, on which a guiding surface is provided;

[0007] A slider, which is movably arranged on the guide rail main body and cooperates with the guiding surface. Returners are arranged at both ends of the slider, and a ball circulation loop is arranged in the slider and the returners;

[0008] It further includes:

[0009] A lubrication mechanism, which includes a lubricant coating body arranged on the circulation loop;

[0010] A heat dissipation mechanism, which is arranged in the guide rail main body to absorb the heat on the guide rail main body;

[0011] Wherein, rolling elements are arranged in the ball circulation loop, and the lubricant coating body can coat the lubricant onto the rolling elements.

[0012] In this technical solution, during the use of the linear guide rail, through the setting of the lubrication mechanism, when the rolling elements move in the ball circulation loop, the lubricant coating body can fully coat the lubricant on the rolling elements, thereby ensuring that the rolling elements are fully lubricated, improving the long-term lubricity of the linear guide rail. At the same time, the heat generated and accumulated by the guide rail body during the working process can be fully absorbed and dissipated through the heat dissipation mechanism, preventing the stability, accuracy and service life of the linear guide rail from being easily affected due to insufficient heat dissipation.

[0013] In the above technical solution, further, the lubrication mechanism further includes:

[0014] An installation cavity, which is arranged in the returner and close to the ball circulation loop;

[0015] Wherein, the installation cavity has an orifice communicating with the ball circulation loop, and the lubricant coating body is arranged in the installation cavity.

[0016] In the above technical solution, further, the heat dissipation mechanism further includes:

[0017] An installation groove, which is arranged in the guide rail body, and the installation groove penetrates the guide rail body along the length direction of the guide rail body;

[0018] A cooling pipe, which is arranged in the installation groove, and both ends of the cooling pipe are provided with a flow dividing part and a flow converging part;

[0019] Wherein, both the flow dividing part and the flow converging part are provided with conveying interfaces, and heat conductive silicone grease is filled between the cooling pipe and the installation groove.

[0020] In the above technical solution, further, the cooling pipe further includes:

[0021] A pipe body, and a coolant flow channel is arranged inside the pipe body;

[0022] A deflector plate group, which is arranged in the coolant flow channel, and the deflector plate group is composed of a plurality of upper deflector plates and a plurality of lower deflector plates;

[0023] Wherein, a plurality of upper deflector plates and a plurality of lower deflector plates are evenly spaced along the length direction of the pipe body, the plurality of upper deflector plates and the plurality of lower deflector plates are arranged in a staggered manner up and down, and both the upper deflector plates and the lower deflector plates are inclined towards the coolant flow direction.

[0024] In the above technical solution, further, there are a plurality of cooling pipes.

[0025] The beneficial effects of the present utility model are:

[0026] 1. The lubricating mechanism can fully coat the lubricant on the rolling elements, thus ensuring that the rolling elements are fully lubricated and improving the long-term lubricity of the linear guide rail.

[0027] 2. The heat dissipation mechanism can fully absorb and dissipate the heat generated and accumulated during the operation of the linear guide rail, preventing the stability, accuracy and service life of the linear guide rail from being easily affected due to insufficient heat dissipation.

[0028] 3. Through the setting of the deflector plate group, when the coolant moves in the pipe body, the deflector plate group deflects the coolant, enabling the coolant to fully absorb the heat of the guide rail body. At the same time, the deflector plate group can also make the heat fully transfer to the center of the pipe body, improving the heat absorption efficiency of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of the specific embodiment of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the ball circulation circuit of the present invention.

[0032] Figure 3 It is a schematic structural diagram of the heat dissipation mechanism of the present invention.

[0033] Figure 4 It is a schematic structural diagram of the cooling pipe of the present invention.

[0034] Figure 5 It is a schematic structural diagram of the cross-sectional view of the pipe body of the present invention.

[0035] The markings in the figure are shown as:

[0036] 1. Guide rail body; 2. Slide block; 3. Returner; 4. Ball circulation circuit; 40. Rolling element; 5. Lubricating mechanism; 50. Lubricant coating body; 51. Installation cavity; 6. Heat dissipation mechanism; 60. Installation groove; 61. Cooling pipe; 610. Pipe body; 611. Coolant flow channel; 612. Upper deflector plate; 613. Lower deflector plate; 62. Shunt part; 63. Confluence part; 7. Delivery interface; 8. Thermal conductive silicone grease. DETAILED DESCRIPTION OF THE INVENTION

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0038] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] Embodiment 1:

[0040] An embodiment of the present application provides a linear guide rail, including: a guide rail main body 1, on which a guiding surface is provided; a slider 2, which is movably arranged on the guide rail main body 1 and cooperates with the guiding surface, returners 3 are arranged at both ends of the slider 2, and a ball circulation circuit 4 is arranged in the slider 2 and the returners 3;

[0041] It further includes: a lubrication mechanism 5, which includes a lubricant coating body 50 arranged on the circulation circuit; a heat dissipation mechanism 6, which is arranged in the guide rail main body 1 to absorb the heat on the guide rail main body 1;

[0042] Wherein, rolling elements are arranged in the ball circulation circuit 4, and the lubricant coating body 50 can coat the lubricant onto the rolling elements.

[0043] In this embodiment, during the use of the linear guide rail, due to the arrangement of the lubrication mechanism 5, when the rolling elements move in the ball circulation circuit 4, the lubricant coating body 50 can fully coat the lubricant on the rolling elements, thereby ensuring that the rolling elements are fully lubricated, improving the long-term lubricity of the linear guide rail. At the same time, the heat generated and accumulated by the guide rail main body 1 during the working process can be fully absorbed and dissipated by the heat dissipation mechanism 6, preventing the stability, accuracy, and service life of the linear guide rail from being easily affected due to insufficient heat dissipation.

[0044] Embodiment 2:

[0045] This embodiment provides a linear guide rail. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The lubrication mechanism 5 further includes: an installation cavity 51, which is arranged in the returner 3 and close to the ball circulation circuit 4;

[0046] Wherein, the installation cavity 51 has an orifice communicating with the ball circulation circuit 4, and the lubricant coating body 50 is arranged in the installation cavity 51.

[0047] Moreover, the lubrication mechanism 5 further includes a conventional lubricant adding structure, including an oil passage opened on the returner 3 and communicating with the installation cavity 51 and a plugging part installed at the inlet end of the oil passage.

[0048] In this embodiment, the lubricant coating body 50 arranged in the installation cavity 51 can directly and fully coat the lubricant on the rolling elements during the movement of the rolling elements. Through the lubricant adding structure, the lubricant coating body 50 can be replenished with lubricant. Compared with the prior art, the utility model can ensure that the rolling elements are fully lubricated and improve the long-term lubricity of the linear guide rail.

[0049] Embodiment 3:

[0050] This embodiment provides a linear guide rail. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The heat dissipation mechanism 6 further includes: an installation groove 60, which is arranged in the guide rail body 1, and the installation groove 60 penetrates the guide rail body 1 along the length direction of the guide rail body 1; a cooling pipe 61, which is arranged in the installation groove 60, and both ends of the cooling pipe 61 are provided with a flow dividing part 62 and a flow converging part 63;

[0051] Wherein, conveying interfaces 7 are arranged on both the flow dividing part 62 and the flow converging part 63, and heat conductive silicone grease 8 is filled between the cooling pipe 61 and the installation groove 60.

[0052] Moreover, the flow dividing part 62 and the flow converging part 63 are of conventional structures, and the conveying interfaces 7 can be connected to an external conventional coolant circulation device to convey coolant into the cooling pipe 61. Connecting plates are also installed on the flow dividing part 62 and the flow converging part 63, and the connecting plates are fixedly connected to the guide rail body 1 through bolts.

[0053] In this embodiment, during the operation of the heat dissipation mechanism 6, the coolant enters the diversion part 62 from the delivery interface 7 and then enters the cooling pipe 61 from the diversion part 62. During the process of flowing along the cooling pipe 61, after the heat generated and accumulated by the guide rail main body 1 is transferred to the cooling pipe 61, the coolant absorbs the heat transferred to the cooling pipe 61, thereby reducing the temperature of the guide rail main body 1. The thermal conductive silicone grease 8 can fill the gap between the cooling pipe 61 and the installation groove 60, thereby ensuring that the heat can be fully transferred to the cooling pipe 61. Compared with the prior art, the utility model can effectively prevent the stability, precision and service life of the linear guide rail from being affected due to insufficient heat dissipation.

[0054] Embodiment 4:

[0055] This embodiment provides a linear guide rail. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The cooling pipe 61 further includes: a pipe body 610, and a coolant flow channel 611 is arranged inside the pipe body 610; a deflector plate group, and the deflector plate group is arranged in the coolant flow channel 611. The deflector plate group is composed of a plurality of upper deflector plates 612 and a plurality of lower deflector plates 613;

[0056] Among them, a plurality of upper deflector plates 612 and a plurality of lower deflector plates 613 are evenly spaced along the length direction of the pipe body 610, and the plurality of upper deflector plates 612 and the plurality of lower deflector plates 613 are arranged in a staggered manner up and down. The upper deflector plates 612 and the lower deflector plates 613 are both inclined towards the coolant flow direction.

[0057] There are a plurality of cooling pipes 61.

[0058] Moreover, a plurality of cooling pipes 61 are arranged and distributed, and a plurality of cooling pipes 61 are installed between the diversion part 62 and the confluence part 63.

[0059] In this embodiment, through the arrangement of the deflector plate group, when the coolant moves in the pipe body 610, the deflector plate group deflects the coolant. When the coolant collides with the deflector plate, the flow direction can change, so that each part of the coolant can fully contact the heat and absorb the heat, enabling the coolant to fully absorb the heat of the guide rail main body 1. At the same time, both the upper deflector plates 612 and the lower deflector plates 613 in the deflector plate group extend from the inner wall of the pipe body 610 towards the center of the pipe body 610, so that the heat absorbed by the cooling pipe 61 can be transferred to the center of the pipe body 610, improving the heat absorption efficiency of the coolant.

[0060] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A linear guide rail, comprising: A guide rail body (1), on which a guiding surface is provided; A slider (2), which is movably arranged on the guide rail body (1) and cooperates with the guiding surface. Returners (3) are arranged at both ends of the slider (2), and a ball circulation loop (4) is arranged in the slider (2) and the returners (3); It is characterized in that it further comprises: A lubrication mechanism (5), which includes a lubricant coating body (50) arranged on the circulation loop; A heat dissipation mechanism (6), which is arranged in the guide rail body (1) for absorbing the heat on the guide rail body (1); Wherein, rolling elements are arranged in the ball circulation loop (4), and the lubricant coating body (50) can coat the lubricant onto the rolling elements.

2. A linear guide rail according to claim 1, characterized in that, The lubrication mechanism (5) further comprises: An installation cavity (51), which is arranged in the returner (3) and close to the ball circulation loop (4); Wherein, the installation cavity (51) has an orifice communicating with the ball circulation loop (4), and the lubricant coating body (50) is arranged in the installation cavity (51).

3. A linear guide according to claim 2, characterized in that, The heat dissipation mechanism (6) further comprises: An installation groove (60), which is arranged in the guide rail body (1), and the installation groove (60) penetrates through the guide rail body (1) along the length direction of the guide rail body (1); A cooling pipe (61), which is arranged in the installation groove (60), and diversion parts (62) and a confluence part (63) are arranged at both ends of the cooling pipe (61); Wherein, conveying interfaces (7) are arranged on both the diversion part (62) and the confluence part (63), and heat-conducting silicone grease (8) is filled between the cooling pipe (61) and the installation groove (60).

4. A linear guide rail according to claim 3, characterized in that, The cooling pipe (61) further comprises: A pipe body (610), in which a coolant flow channel (611) is arranged; A deflector plate group, which is arranged in the coolant flow channel (611), and the deflector plate group is composed of a plurality of upper deflector plates (612) and a plurality of lower deflector plates (613); Wherein, the plurality of upper deflector plates (612) and the plurality of lower deflector plates (613) are evenly spaced along the length direction of the pipe body (610), the plurality of upper deflector plates (612) and the plurality of lower deflector plates (613) are staggered up and down, and the upper deflector plates (612) and the lower deflector plates (613) are both inclined towards the coolant flow direction.

5. A linear guide rail according to claim 3, characterized in that: The cooling pipe (61) has a plurality of roots.

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