Linear guide rail with self-lubricating function

Abstract

A linear guide rail with a self-lubricating function. The linear guide rail comprises a sliding rail body (1), a sliding block (3), an oil storage chamber (4), an oil output hole (5), an air intake slot (6) and a lubricating mechanism (2). By means of the provision of the lubricating mechanism (2) and the mutual meshing of a gear (201) and a toothed groove, the linear guide rail enables the gear (201) to rotate under the drive of the sliding block (3). When the gear (201) presses a lifting press block (202), the lifting press block (202) squeezes and pushes a sealing baffle (203) to separate from a port of the air intake slot (6). At this time, the sealing baffle (203) pushes a limiting press plate (206) down by means of a connecting push rod (204) to squeeze a spring (205), and external air enters the oil storage chamber (4) through the air intake slot (6). Moreover, due to air circulation, lubricating oil lubricates an outer wall of the sliding rail body (1) by means of the cooperation of the oil output hole (5) and the sliding block (3). When the gear (201) is separated from the lifting press block (202), the spring (205) rebounds to push the limiting press plate (206) to reset, so as to avoid the continuous flow of the lubricating oil, thereby achieving the aim of automatic lubrication of the sliding rail body (1).

Description

A linear guide with self-lubrication function Technical Field

[0001] This utility model relates to the field of linear guide technology, specifically a linear guide with self-lubrication function. Background Technology

[0002] Linear guides, also known as linear rails, slide rails, or linear guides, are used in high-precision or high-speed linear reciprocating motion applications. They can withstand a certain amount of torque and achieve high-precision linear motion under high loads. During use, linear guides work in conjunction with sliders to enable linear movement of objects. The slider and linear guide are generally connected by ball bearings. However, during long-term sliding, the ball bearings are easily damaged due to friction, which affects the service life of the slider. To maintain the service life of the slider, lubricating oil is usually applied to the outer wall of the linear guide.

[0003] However, lubricating oil will dry out after a certain period of use, causing its lubricating effect to disappear. Therefore, it is necessary to manually apply lubricating oil to the linear guide at regular intervals, which is very tedious and inefficient. In addition, it is impossible to apply lubricating oil to the linear guide during the operation of the slider. Therefore, we have proposed a linear guide with a built-in lubrication function. Technical issues

[0004] The purpose of this invention is to provide a linear guide rail with a built-in lubrication function, in order to solve the problem that linear guide rails require manual application of lubricating oil at regular intervals and cannot be applied during operation. Technical solutions

[0005] To achieve the above objectives, this utility model provides the following technical solution: a linear guide rail with self-lubrication function, comprising a slide rail body, a slider slidably connected to the outer wall of the slide rail body, multiple oil storage chambers evenly spaced inside the slide rail body, oil outlet holes penetrating into the oil storage chambers at both ends of the slide rail body, and air inlet grooves penetrating into the oil storage chambers at both ends of the slide rail body, the air inlet grooves being located directly above the oil outlet holes, a lubrication mechanism being provided inside the slider and the oil storage chambers, the lubrication mechanism including gears, lifting pressure blocks, sealing baffles, connecting push rods, springs, and limiting pressure plates; the sealing baffles, connecting push rods, springs, and limiting pressure plates are all provided. The limiting pressure plate is used to seal and block the air intake slot. The sealing baffle is set at the top of the inner wall of the oil storage chamber and located at one end of the air intake slot. The connecting push rod is fixedly connected to the bottom end of the sealing baffle and passes through the oil storage chamber to the interior of the slide rail body. The limiting pressure plate is fixedly connected to the bottom end of the connecting push rod and is slidably connected to the slide rail body. The spring is connected to the lower surface of the limiting pressure plate and contacts the bottom end of the inner wall of the slide rail body. The gear and lifting pressure block are used to release the blockage of the air intake slot by the sealing baffle. The lifting pressure block is fixedly connected to the top of the sealing baffle and passes through to the top outer wall of the slide rail body. The gear is rotatably connected to the interior of the slider through a rotating shaft.

[0006] As a further improvement of this utility model: the bottom ends of both sides of the inner wall of the slide rail body are sloping, and the oil outlet is located at the lower ends of both ends of the oil storage cavity.

[0007] As a further improvement of this utility model: the top outer wall of the lifting block is elliptical, and a lifting push groove is provided at the junction of the slide rail body and the lifting block and the sealing baffle for the lifting block and the sealing baffle to slide.

[0008] As a further improvement of this utility model: the limiting pressure plate is square in shape, and a lifting pressure groove is provided at the junction of the slide rail body and the connecting push rod and the limiting pressure plate for the connecting push rod and the limiting pressure plate to slide.

[0009] As a further improvement of this utility model: a first sealing gasket is provided on the inner wall of the slide rail body where it connects with the connecting push rod, and a second sealing gasket is provided on the outer wall of the sealing baffle where it connects with the air inlet groove.

[0010] As a further improvement of this utility model: a connecting groove for the gear to rotate is provided at the contact position between the slider and the gear, and a toothed groove for meshing with the gear is provided at the contact position between the top of the slide rail body and the gear. Beneficial effects

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up a lubrication mechanism, the gears can rotate under the drive of the slider through the meshing of the gears and the tooth groove. When the gears squeeze the lifting block, the lifting block pushes the sealing baffle to separate from the port of the air inlet groove. At this time, the sealing baffle pushes the limiting plate down through the connecting push rod to squeeze the spring. At this time, the outside air enters the oil storage chamber through the air inlet groove. At the same time, the lubricating oil, due to the air circulation, lubricates the outer wall of the slide rail body through the oil outlet and the cooperation of the slider. When the gears separate from the lifting block, the spring pushes the limiting plate to reset by rebounding, which can prevent the continuous flow of lubricating oil, thereby achieving the purpose of automatic lubrication of the slide rail body. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the structure of this utility model;

[0014] Figure 2 is a schematic cross-sectional view of the slide rail body of this utility model;

[0015] Figure 3 is a schematic cross-sectional view of the slider of this utility model;

[0016] Figure 4 is a partially enlarged schematic diagram of point A in Figure 2 of this utility model.

[0017] In the diagram: 1. Slide rail body; 2. Lubrication mechanism; 201. Gear; 202. Lifting pressure block; 203. Sealing baffle; 204. Connecting push rod; 205. Spring; 206. Limiting pressure plate; 3. Slider; 4. Oil storage chamber; 5. Oil outlet; 6. Air inlet groove. The best embodiment of the present invention

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1 to 4. In this embodiment of the present invention, a linear guide rail with self-lubricating function includes a slide rail body 1. The bottom ends of both sides of the inner wall of the slide rail body 1 are sloped. A slider 3 is slidably connected to the outer wall of the slide rail body 1. The slide rail body 1 has multiple oil storage chambers 4 evenly spaced inside. Oil outlet holes 5 penetrating into the oil storage chambers 4 are opened at both ends of the slide rail body 1, located at the lower ends of both ends of the oil storage chambers 4. Air inlet grooves 6 penetrating into the oil storage chambers 4 are opened at both ends of the slide rail body 1, located directly above the oil outlet holes 5. A lubrication mechanism 2 is provided inside the slider 3 and the oil storage chambers 4. The lubrication mechanism 2 includes a gear 201, a lifting pressure block 202, a sealing baffle 203, a connecting push rod 204, a spring 205, and a limiting pressure plate 206. The sealing baffle 203, connecting push rod 204, spring 205, and limiting pressure plate 206 are used to seal and block the air inlet grooves 6. A baffle 203 is located at the top of the inner wall of the oil storage chamber 4 and at one end of the air inlet slot 6. A connecting push rod 204 is fixedly connected to the bottom end of the sealing baffle 203 and extends through the oil storage chamber 4 into the interior of the slide rail body 1. A limiting pressure plate 206 is fixedly connected to the bottom end of the connecting push rod 204 and is slidably connected to the slide rail body 1. The limiting pressure plate 206 is square in shape. A connection point for connecting the slide rail body 1 with the connecting push rod 204 and the limiting pressure plate 206 is provided. The lifting pressure groove is connected to the push rod 204 and the limiting pressure plate 206. The spring 205 is connected to the lower surface of the limiting pressure plate 206 and contacts the bottom end of the inner wall of the slide rail body 1. The gear 201 and the lifting pressure block 202 are used to release the blockage of the sealing baffle 203 on the air inlet groove 6. The lifting pressure block 202 is fixedly connected to the top of the sealing baffle 203 and extends through to the top outer wall of the slide rail body 1. The gear 201 is rotatably connected to the inside of the slider 3 through the rotating shaft.

[0020] In this embodiment: During use, the slider 3 moves along the outer wall of the slide rail body 1 under the push of an external force. At the same time, through the meshing of the gear 201 and the tooth groove, the gear 201 can rotate under the drive of the slider 3. When the gear 201 contacts the outer wall of the lifting pressure block 202, the lifting pressure block 202 pushes the sealing baffle 203 down under the pressure of the gear 201. At the same time, the sealing baffle 203 causes the second sealing gasket to separate from the port of the air inlet groove 6. At this time, the connecting push rod 204 pushes the limiting pressure plate 206 down under the push of the sealing baffle 203. At the same time, the limiting pressure plate 206 presses the spring 205 along the inner wall of the slide rail body 1. At this time, outside air enters the oil storage chamber 4 through the air inlet groove 6. At the same time, the lubricating oil inside the oil storage chamber 4 flows to the outer wall of the slide rail body 1 through the oil outlet 5 due to air circulation, lubricating the inner wall of the slider 3 and the outer wall of the slide rail body 1. When the gear 201 separates from the outer wall of the lifting pressure block 202, the spring 205 pushes the limit pressure plate 206 to reset by rebound. At the same time, the sealing baffle 203 drives the second sealing gasket to block the port of the air inlet groove 6, which can prevent outside air from entering the oil storage chamber 4 and prevent the lubricating oil from continuously flowing through the oil outlet 5, thereby achieving the purpose of automatic lubrication of the outer wall of the slide rail body 1.

[0021] Please refer to Figures 2 to 4. The top outer wall of the lifting block 202 is elliptical. The sliding rail body 1 is provided with a lifting push groove at the junction of the lifting block 202 and the sealing baffle 203 for the lifting block 202 and the sealing baffle 203 to slide.

[0022] In this embodiment: through the cooperation of the elliptical outer wall and the lifting push groove, the lifting pressure block 202 can push the sealing baffle 203 down under the pressure of the gear 201, so that the outside air can enter the interior of the oil storage chamber 4. At this time, the lubricating oil flows out through the oil outlet 5 due to the air circulation inside the oil storage chamber 4, which can realize the automatic lubrication of the outer wall of the slide rail body 1.

[0023] Please refer to Figures 2 to 4. A first sealing gasket is provided on the inner wall of the position where the slide rail body 1 connects with the connecting push rod 204, and a second sealing gasket is provided on the outer wall of the position where the sealing baffle 203 connects with the air inlet groove 6.

[0024] In this embodiment: the first sealing gasket can prevent the lubricating oil from contacting the limiting pressure plate 206 along the outer wall of the connecting push rod 204, while the second sealing gasket can prevent outside air from entering the oil storage chamber 4 and prevent the lubricating oil from continuously flowing through the oil outlet 5.

[0025] Please refer to Figures 2 to 4. A connecting groove for the gear 201 to rotate is provided at the position where the slider 3 connects with the gear 201. A toothed groove that meshes with the gear 201 is provided at the position where the top of the slide rail body 1 connects with the gear 201.

[0026] In this embodiment: by connecting the rotating groove and the tooth groove, the gear 201 can rotate inside the slider 3 through the rotating shaft under the meshing limit of the tooth groove. At the same time, the structure of the gear 201 pressing the lifting pressure block 202 can keep the movement of the slider 3 smooth and avoid the movement of the slider 3 being jerked when the lifting pressure block 202 is pressed.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A linear guide rail with self-lubricating function, comprising a rail body (1) and a slider (3), characterized in that, The slide rail body (1) has multiple oil storage chambers (4) evenly spaced inside. The slide rail body (1) has oil outlet holes (5) that penetrate into the oil storage chambers (4) at both ends. The slide rail body (1) has air inlet grooves (6) that penetrate into the oil storage chambers (4) at both ends. The air inlet grooves (6) are located directly above the oil outlet holes (5). The slider (3) and the oil storage chambers (4) are equipped with a lubrication mechanism (2). The lubrication mechanism (2) includes a gear (201), a lifting pressure block (202), a sealing baffle (203), a connecting push rod (204), a spring (205), and a limiting pressure plate (206). The sealing baffle (203), connecting push rod (204), spring (205), and limiting pressure plate (206) are used to seal and block the air inlet groove (6). The sealing baffle (203) is set at the top of the inner wall of the oil storage chamber (4) and located at one end of the air inlet groove (6). The connecting push rod (204) is fixedly connected to the bottom end of the sealing baffle (203) and penetrates the oil storage chamber (4) to the interior of the slide rail body (1). The limiting pressure plate (206) is fixedly connected to the bottom end of the connecting push rod (204) and is slidably connected to the slide rail body (1). The spring (205) is connected to the lower surface of the limiting pressure plate (206) and is in contact with the bottom end of the inner wall of the slide rail body (1). The gear (201) and lifting block (202) are used to release the blockage of the air inlet groove (6) by the sealing baffle (203). The lifting block (202) is fixedly connected to the top of the sealing baffle (203) and extends through to the top outer wall of the slide rail body (1). The gear (201) is rotatably connected to the inside of the slider (3) through a rotating shaft.

2. A linear guide rail with self-lubricating function according to claim 1, characterized in that, The top outer wall of the lifting block (202) is elliptical. The sliding rail body (1) is provided with a lifting push groove at the junction of the lifting block (202) and the sealing baffle (203) for the lifting block (202) and the sealing baffle (203) to slide.

3. A linear guide rail with self-lubricating function according to claim 1, characterized in that, The limiting pressure plate (206) is square in shape. The slide rail body (1) is provided with a lifting pressure groove at the junction of the connecting push rod (204) and the limiting pressure plate (206) for the connecting push rod (204) and the limiting pressure plate (206) to slide.

4. A linear guide rail with self-lubricating function according to claim 1, characterized in that, The inner wall of the slide rail body (1) where it connects with the connecting push rod (204) is provided with a first sealing gasket, and the outer wall of the sealing baffle (203) where it connects with the air inlet groove (6) is provided with a second sealing gasket.

5. A linear guide rail with self-lubricating function according to claim 1, characterized in that, The slider (3) is provided with a connecting groove at the junction with the gear (201) for the gear (201) to rotate, and the top of the slide rail body (1) is provided with a tooth groove that meshes with the gear (201) at the junction with the gear (201).

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