Self-lubricating linear guide rail

Abstract

The utility model provides a kind of linear guide rail of self-lubricating, including slide rail, and the slide rail is slidably connected with slider, and the slider is equipped with connecting plate, and the connecting plate is equipped with self-lubricating structure, and the self-lubricating structure includes counterweight box, counterweight block and oil storage box, and the counterweight block is slidably connected in counterweight box, and the counterweight block one end is fixedly connected with push rod, and the one end of counterweight box is equipped with slot hole, and the oil storage box is equipped with oil storage cavity, oil outlet pipe and movable cavity, and the oil storage cavity is communicated with oil outlet pipe, and movable cavity is communicated with oil outlet pipe, and the end of push rod is inserted into movable cavity and extends through slot hole, and the one end of oil outlet pipe is communicated with oil storage cavity, and the other end of oil outlet pipe is communicated with connecting plate;When push rod moves in the linear guide rail of the utility model towards the direction of cavity, push rod end will first one-way valve top and second one-way valve bottom simultaneously, so that the lubricating oil in oil storage cavity enters oil outlet pipe and is discharged on slide rail through connecting plate bottom, and the lubrication of slide rail is realized.

Description

Technical Field

[0001] This utility model belongs to the technical field of linear guides, and in particular relates to self-lubricating linear guides. Background Technology

[0002] Linear guides are widely used in mechanical motion. However, with long-term use, linear guides may experience uneven operation. Therefore, lubrication is necessary to improve their smooth operation.

[0003] Traditional methods of lubricating linear guides have the following problems: continuous lubrication leads to waste of lubricant and easily contaminates the working environment; intermittent lubrication requires external control devices, which are complex in structure; and in working conditions with significant vibration or inertial forces, the timing of lubrication does not match the motion state, affecting the normal lubrication operation of the linear guide.

[0004] Therefore, there is a need to provide a self-lubricating linear guide that can solve the above-mentioned technical problems. Utility Model Content

[0005] The main objective of this invention is to provide a self-lubricating linear guide rail, addressing the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A self-lubricating linear guide rail includes a slide rail, a slider slidably connected to the slide rail, a connecting plate on the slider, and a self-lubricating structure on the connecting plate. The self-lubricating structure includes a counterweight box, a counterweight block, and an oil reservoir. The counterweight block is slidably connected inside the counterweight box. One end of the counterweight block is fixedly connected to a push rod arranged parallel to the slide rail. One end of the counterweight box has a slot to communicate with the oil reservoir. The oil reservoir has an oil storage chamber, an oil outlet pipe, and a movable chamber. The oil storage chamber communicates with the oil outlet pipe, and the movable chamber communicates with the oil outlet pipe. The end of the push rod extends through the slot into the movable chamber. One end of the oil outlet pipe communicates with the oil storage chamber, and the other end of the oil outlet pipe communicates with the connecting plate. A first one-way valve is installed at the end of the oil outlet pipe communicating with the oil storage chamber, and a second one-way valve is installed at the end of the oil outlet pipe communicating with the connecting plate.

[0007] Preferably, the connecting plate has a pipe communicating with the oil outlet pipe, and the pipe is located above the slide rail.

[0008] Preferably, the diameter of the push rod is equal to the diameter of the slot.

[0009] Preferably, a sealing ring is fitted around the outer periphery of one end of the push rod that extends into the movable cavity.

[0010] Preferably, a spring is fitted around the outer periphery of the end of the push rod that is connected to the counterweight, and the direction of the spring deformation is parallel to the slide rail.

[0011] Preferably, the counterweight box includes a box body and a box cover. The box cover is arranged parallel to the guide rail. Several grooves are provided on the bottom of the box body and the inner side of the box cover. Ball bearings are provided in the grooves.

[0012] Preferably, the counterweight has grooves at both the top and bottom, and the grooves slide with the ball bearings as guides so that the counterweight slides within the counterweight box.

[0013] Preferably, the top of the oil storage box is provided with an oil storage cover, and the oil storage cover is arranged parallel to the slide rail.

[0014] Compared with the prior art, the present invention will have at least the following beneficial effects: In the linear guide of this invention, when the push rod moves towards the cavity, the end of the push rod pushes the first one-way valve upward and the second one-way valve downward, so that the lubricating oil in the oil storage chamber enters the oil outlet pipe and is discharged to the slide rail through the bottom of the connecting plate, thereby lubricating the slide rail.

[0015] When the push rod retracts along the cavity towards the counterweight box, a negative pressure is generated in the oil storage chamber, causing the lubricating oil in the oil storage chamber to be drawn into the cavity. When the push rod moves towards the cavity and towards the oil outlet pipe again, the lubricating oil is discharged again, thus lubricating the slide rail.

[0016] When the slider is stationary, the counterweight can be fixed in the counterweight box under the pressure of the spring. This prevents the counterweight from moving inside the counterweight box, ensuring that the push rod will not move, and thus ensuring that the lubricating oil in the cavity will not enter the counterweight box. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the structure of the self-lubricating linear guide rail of this utility model; Figure 2 This is an exploded view of the self-lubricating linear guide rail of this utility model. Figure 3 This is a front sectional view of the self-lubricating linear guide rail of this utility model; Figure 4This is a cross-sectional view of the self-lubricating linear guide rail of this utility model; Figure 5 for Figure 4 Enlarged view of point I in the image; Figure 6 This is an exploded view of the counterweight box of the self-lubricating linear guide of this utility model. Figure 7 for Figure 6 Enlarged view of section II in the image; Figure 8 for Figure 6 Enlarged view of section III in the image; Figure 9 This is an exploded view of the counterweight box of the self-lubricating linear guide of this utility model.

[0018] The reference numerals in the figures include: 1. Slide rail; 2. Slider; 3. Connecting plate; 4. Counterweight box; 400. Box body; 401. Box cover; 402. Groove; 403. Ball bearing; 404. Slot; 5. Counterweight block; 500. Slide groove; 6. Push rod; 7. Oil storage box; 700. Oil storage chamber; 701. Oil outlet pipe; 702. Movable chamber; 703. Oil storage cap; 8. Pipeline; 9. First check valve; 10. Second check valve; 11. Sealing ring; 12. Spring. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0020] like Figures 1 to 9As shown, a self-lubricating linear guide includes a slide rail 1, a slider 2 slidably connected to the slide rail 1, a connecting plate 3 on the slider 2, and a self-lubricating structure on the connecting plate 3. The self-lubricating structure includes a counterweight box 4, a counterweight block 5, and an oil reservoir 7. The counterweight block 5 is slidably connected inside the counterweight box 4. One end of the counterweight block 5 is fixedly connected to a push rod 6 arranged parallel to the slide rail 1. One end of the counterweight box 4 has a slot 404 to allow the counterweight box 4 to communicate with the oil reservoir 7. The oil reservoir 7 has an oil storage chamber 700, an oil outlet pipe 701, and a movable chamber 702. The oil storage chamber 700 stores lubricating oil that can lubricate the slide rail 1. The oil storage chamber 700 is connected to the oil outlet pipe 701, and the movable chamber 702 is connected to the oil outlet pipe 701. The end of the push rod 6 extends through the slot 404 into the movable chamber 702. The extension of the end of the push rod 6 into the movable chamber 702 allows the push rod 6 to... When the end moves within the movable cavity 702, it forms a sealed cavity with the oil outlet pipe 701. One end of the oil outlet pipe 701 is connected to the oil storage cavity 700, and the other end is connected to the connecting plate 3. A first one-way valve 9 is installed at the end of the oil outlet pipe 701 connected to the oil storage cavity 700, and a second one-way valve 10 is installed at the end of the oil outlet pipe 701 connected to the connecting plate 3. Thus, when the push rod 6 moves towards the cavity, under the action of positive pressure, the end of the push rod 6 pushes the first one-way valve 9 upward, and at the same time, the end of the push rod 6 pushes the second one-way valve 10 downward, so that the lubricating oil in the oil storage cavity 700 enters the oil outlet pipe 701 and is discharged to the slide rail 1 through the bottom of the connecting plate 3, thereby achieving the purpose of lubricating the slide rail 1.

[0021] The working principle of this embodiment: When slider 2 moves at high speed along slide rail 1, it will generate acceleration. Under the action of inertia, counterweight 5 will generate a force opposite to that of slider 2 in the direction of slider 2's movement, thereby driving push rod 6 to move. When push rod 6 moves towards the cavity and towards oil outlet pipe 701, push rod 6 will push the first one-way valve 9 upward, creating a gap between oil reservoir 700 and oil outlet pipe 701. At the same time, push rod 6 will push the second one-way valve 10 downward, allowing lubricating oil in oil reservoir 700 to flow out from the gap. The lubricating oil enters the oil outlet pipe 701 and is discharged towards the connecting plate 3, so that the lubricating oil drips onto the slide rail 1, thus completing the lubrication of the slide rail 1. When the push rod 6 moves back along the cavity towards the counterweight box 4, a negative pressure is generated in the oil storage chamber 700, which draws the lubricating oil in the oil storage chamber 700 into the cavity. When the push rod 6 moves towards the cavity and towards the oil outlet pipe 701 again, the lubricating oil is discharged again, thus achieving the lubrication of the slide rail 1. This achieves multiple lubrication operations for the slide rail 1.

[0022] The connecting plate 3 has a pipe 8 that communicates with the oil outlet pipe 701. The pipe 8 is located above the slide rail 1, which facilitates the discharge of lubricating oil from the pipe 8 to lubricate the slide rail 1. Furthermore, this arrangement facilitates the movement of the second check valve 10 within the pipe 8.

[0023] The diameter of push rod 6 is equal to the diameter of slot 404. During the movement of push rod 6, it is necessary to ensure that the lubricating oil in the cavity does not enter the counterweight box 4 and cause contamination to the components inside the counterweight box 4. Therefore, the diameter of push rod 6 is designed to be equal to the diameter of slot 404.

[0024] A sealing ring 11 is fitted around the outer periphery of one end of the push rod 6 that extends into the movable cavity 702. The sealing ring 11 can strengthen the sealing cavity formed between the end of the push rod 6 and the oil outlet pipe 701, further ensuring that the lubricating oil in the cavity will not enter the counterweight box 4. Furthermore, the sealing ring 11 can ensure that the cavity is under positive or negative pressure during the movement of the push rod 6.

[0025] A spring 12 is sleeved on the outer periphery of the end of the push rod 6 that is connected to the counterweight 5. The direction of the deformation of the spring 12 is parallel to that of the slide rail 1. When the slider 2 is stationary, the counterweight 5 can be fixed in the counterweight box 4 under the pressure of the spring 12. In this way, the counterweight 5 will not move in the counterweight box 4, thereby ensuring that the push rod 6 will not move, and thus ensuring that the lubricating oil in the cavity will not enter the counterweight box 4.

[0026] The counterweight box 4 includes a box body 400 and a box cover 401. The box cover 401 is arranged parallel to the slide rail 1. Several grooves 402 are provided on the bottom of the box body 400 and the inner side of the box cover 401. Ball bearings 403 are provided in the grooves 402. The ball bearings 403 move in the grooves 402. The ball bearings 403 are used to guide the counterweight 5 to slide in the counterweight box 4. The ball bearings 403 provided on the bottom of the box cover 401 and the box body 400 can ensure that the counterweight 5 slides smoothly in the counterweight box 4. Furthermore, the counterweight 5 and other components in the counterweight box 4 can be repaired or replaced by opening the box cover 4.

[0027] To make the counterweight 5 slide more smoothly in the counterweight box 4, grooves 500 are provided at the top and bottom of the counterweight 5. The grooves 500 slide with the ball bearing 403 as a guide to make the counterweight 5 slide in the counterweight box 4.

[0028] The top of the oil storage box 7 is equipped with an oil storage cap 703. The oil storage cap 703 is set parallel to the slide rail 1. When the oil storage cap 703 is opened, lubricating oil can be added to the oil storage box 7. The parallel setting of the oil storage cap 703 and the slide rail 1 can ensure that the oil storage box 7 will not shake when lubricating oil is added to the oil storage box 7, thus avoiding the situation of lubricating oil leakage.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A self-lubricating linear guide rail, comprising a slide rail (1), wherein a slider (2) is slidably connected to the slide rail (1), and a connecting plate (3) is provided on the slider (2), characterized in that, The connecting plate (3) is provided with a self-lubricating structure, which includes a counterweight box (4), a counterweight block (5), and an oil storage box (7). The counterweight block (5) is slidably connected inside the counterweight box (4). One end of the counterweight block (5) is fixedly connected to a push rod (6) arranged parallel to the slide rail (1). One end of the counterweight box (4) is provided with a slot (404) to allow the counterweight box (4) to communicate with the oil storage box (7). The oil storage box (7) is provided with an oil storage chamber (700), an oil outlet pipe (701), and a movable chamber (702). The oil storage chamber (700) is connected to the slide rail (1). The oil outlet pipe (701) is connected, the movable cavity (702) is connected to the oil outlet pipe (701), the end of the push rod (6) extends into the movable cavity (702) through the slot (404), one end of the oil outlet pipe (701) is connected to the oil storage cavity (700), the other end of the oil outlet pipe (701) is connected to the connecting plate (3), a first one-way valve (9) is installed at the end of the oil outlet pipe (701) connected to the oil storage cavity (700), and a second one-way valve (10) is installed at the end of the oil outlet pipe (701) connected to the connecting plate (3).

2. The self-lubricating linear guide rail according to claim 1, characterized in that, The connecting plate (3) has a pipe (8) that communicates with the oil outlet pipe (701), and the pipe (8) is located above the slide rail (1).

3. The self-lubricating linear guide rail according to claim 1, characterized in that, The diameter of the push rod (6) is equal to the diameter of the slot (404).

4. The self-lubricating linear guide rail according to claim 1, characterized in that, A sealing ring (11) is fitted around the outer periphery of one end of the push rod (6) that extends into the movable cavity (702).

5. The self-lubricating linear guide rail according to claim 1, characterized in that, A spring (12) is sleeved on the outer periphery of one end of the push rod (6) that is connected to the counterweight (5), and the direction of deformation of the spring (12) is parallel to the slide rail (1).

6. The self-lubricating linear guide rail according to claim 1, characterized in that, The counterweight box (4) includes a box body (400) and a box cover (401). The box cover (401) is arranged parallel to the guide rail. Several grooves (402) are provided on the bottom of the box body (400) and the inner side of the box cover (401). Ball bearings (403) are provided in the grooves (402).

7. The self-lubricating linear guide rail according to claim 6, characterized in that, The counterweight (5) has grooves (500) at both the top and bottom. The grooves (500) slide with the ball (403) as a guide so that the counterweight (5) slides in the counterweight box (4).

8. The self-lubricating linear guide rail according to claim 1, characterized in that, The top of the oil storage box (7) is provided with an oil storage cover (703), which is arranged parallel to the slide rail (1).

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