Self-cleaning oil seal structure

Abstract

The utility model relates to oil seal technical field, and disclose a kind of self-cleaning oil seal structure, including main shaft box, transmission flange, four shaft body and oil seal, the side end of main shaft box is fixedly connected with transmission flange, transmission flange rotation is arranged in the inside of four shaft body, the inner ring of oil seal is rotatably connected with transmission flange, the outer ring of oil seal is fixedly connected with the inner wall of four shaft body, cleaning component is provided on four shaft body, cleaning component includes cleaning rod, cleaning rod is arranged at the clearance between main shaft box and four shaft body, cleaning rod is responsible for rotating with main shaft box, and the impurities on the surface of oil seal are scraped off.The utility model can drive main shaft box to rotate to any angle, and the cleaning rod is rotated, so that the cleaning rod cleans the outer wall of oil seal using cleaning part.

Description

Technical Field

[0001] This utility model relates to the field of oil seal technology, specifically a self-cleaning oil seal structure. Background Technology

[0002] The structure with a four-axis spindle is often used in vertical or horizontal machining centers. It is the core power structure of the vertical (horizontal) machining center. This structure is often equipped with oil seals to provide lubrication for the rotation between the two components, thereby reducing friction loss.

[0003] An oil seal, also known as a sealing ring, is a sealing element used to prevent liquid leakage or impurities from entering equipment. It is typically made of elastic materials (such as rubber or polyurethane) and is used to seal the gap between a shaft and the equipment housing. It is widely used in machinery, automobiles, engineering equipment, and other fields.

[0004] By installing an oil seal between two rotating components, they do not need to be in close contact. The oil seal can reduce friction and improve sealing, thereby reducing frictional wear on the components. Even if the oil seal is damaged by friction, it can be replaced in time, thus reducing maintenance costs. However, this gap is prone to accumulating dust and impurities, which can cover the oil seal, affecting its sealing performance. As the impurities accumulate, friction between the components will eventually occur. Utility Model Content

[0005] The purpose of this invention is to provide a self-cleaning oil seal structure to solve the problems mentioned in the background art.

[0006] Technical solution

[0007] This utility model provides the following technical solution: a self-cleaning oil seal structure, including a spindle box, a transmission flange, a four-axis body and an oil seal. The side end of the spindle box is fixedly connected to the transmission flange. The transmission flange is rotatably disposed inside the four-axis body. The inner ring of the oil seal is rotatably connected to the transmission flange. The outer ring of the oil seal is fixedly connected to the inner wall of the four-axis body. A cleaning component is provided on the four-axis body.

[0008] The cleaning component includes a cleaning rod, which is disposed in the gap between the spindle box and the four-axis body. The cleaning rod is responsible for rotating with the spindle box and scraping off impurities from the surface of the oil seal.

[0009] Preferably, the cleaning rod is arranged at an angle, and the end of the cleaning rod is provided with a cleaning part, which is arc-shaped and fits snugly against the outer wall of the oil seal.

[0010] Preferably, the cleaning component further includes a fixed shaft fixedly connected to the outside of the spindle box, the cleaning rod has a shaft hole, the cleaning rod rotates outside the fixed shaft through the shaft hole, a reset component is provided at the outer end of the cleaning rod, and a contact block is provided at the outer end of the quadcopter. The contact block is responsible for driving the cleaning rod to shake off the impurities adhering to itself, and the reset component is used to help the cleaning rod return to its initial position.

[0011] Preferably, the reset component is a reset spring, and a fixing block is fixedly connected to the outside of the spindle box. The fixing block is connected to the cleaning rod through the reset spring.

[0012] Preferably, the return spring is a torsion spring, with one end connected to the drive housing and the other end connected to the cleaning rod.

[0013] Preferably, the multiple cleaning rods are spaced apart and oriented in opposite directions, so that the oil seal can be automatically cleaned whether the spindle box is rotated clockwise or counterclockwise.

[0014] Beneficial effects

[0015] Compared with the prior art, this utility model provides a self-cleaning oil seal structure, which has the following beneficial effects:

[0016] 1. In this utility model, when the drive spindle box is rotated to any angle, the cleaning rod is rotated along with the drive spindle, so that the cleaning rod uses the cleaning part to clean the outer wall of the oil seal.

[0017] 2. In this utility model, when the cleaning rod contacts the first contact plate, the cleaning rod will rotate rapidly around the fixed axis and then shake, which can effectively shake off its own impurities and prevent the impurities from accumulating at the bottom of the cleaning rod.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the external structure provided in Embodiment 1 of the present utility model;

[0022] Figure 2 This is a schematic diagram of the shattering structure provided in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the four-axis body side view structure provided in Embodiment 2 or 3 of this utility model;

[0024] Figure 4 Provided by this utility model Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a schematic diagram of the contact block structure provided in Embodiment 2 or 3 of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] In the diagram: 1. Spindle box; 2. Transmission flange; 3. Four-axis body; 4. Oil seal; 5. Cleaning rod; 6. Cleaning part; 7. Fixed shaft; 8. Reset part; 9. Contact block; 10. Fixed block; 11. Slot; 91. Linkage rod; 92. First contact plate; 93. Second contact plate. Detailed Implementation

[0028] 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.

[0029] Example 1:

[0030] Please see Figures 1-3 This utility model provides a technical solution: a self-cleaning oil seal 4 structure, including a spindle box 1, a transmission flange 2, a quadcopter 3, and an oil seal 4. The side end of the spindle box 1 is fixedly connected to the transmission flange 2. The transmission flange 2 is rotatably disposed inside the quadcopter 3. The inner ring of the oil seal 4 is rotatably connected to the transmission flange 2. The outer ring of the oil seal 4 is fixedly connected to the inner wall of the quadcopter 3. The quadcopter 3 is provided with a cleaning part 6. The cleaning part 6 includes a cleaning rod 5. The cleaning rod 5 is disposed in the gap between the spindle box 1 and the quadcopter 3. The cleaning rod 5 is responsible for rotating with the spindle box 1 and scraping off impurities from the surface of the oil seal 4.

[0031] In this embodiment, the quadcopter 3 is equipped with a drive source that can drive the transmission flange 2 to rotate. The drive source is connected to the controller, so that the transmission flange 2 can be rotated to any angle position as needed.

[0032] The spindle box 1 is equipped with an electric spindle, and various cutting tools are installed at the end of the electric spindle. It is suitable for machining surfaces in the field of CNC machine tools.

[0033] In this embodiment, the transmission flange 2 can rotate the spindle box 1 around the quadcopter 3360 degrees. There is a gap between the spindle box 1 and the quadcopter 3. This gap is prone to accumulating dust and impurities, and it needs to be cleaned.

[0034] The cleaning rod 5 is arranged at an angle, and the end of the cleaning rod 5 is provided with a cleaning part 6. The cleaning part 6 is arc-shaped and fits snugly against the outer wall of the oil seal 4.

[0035] Working principle of this embodiment:

[0036] Each time the spindle box 1 is driven to rotate to any angle, the cleaning rod 5 will rotate along with it. The cleaning rod 5 will use the cleaning part 6 to clean the outer wall of the oil seal 4.

[0037] Example 2:

[0038] Please see Figures 1-5 This utility model provides a technical solution, which, compared with the above solution, adds the following technical features: the cleaning part 6 further includes a fixed shaft 7 fixedly connected to the outside of the spindle box 1, the cleaning rod 5 has a shaft hole, the cleaning rod 5 rotates outside the fixed shaft 7 through the shaft hole, the outer end of the cleaning rod 5 is provided with a reset member 8, the outer end of the quadcopter 3 is provided with a contact block 9, the contact block 9 is responsible for driving the cleaning rod 5 to shake off the impurities adhering to itself, and the reset member 8 is used to help the cleaning rod 5 return to its initial position.

[0039] A support block is fixedly connected to the side end of the contact block 9, and the support block is fixedly connected to the side end of the quadcopter 3.

[0040] In this embodiment, the reset component 8 is a reset spring, and a fixing block 10 is fixedly connected to the outside of the spindle box 1. The fixing block 10 is connected to the cleaning rod 5 through the reset spring.

[0041] The contact block 9 includes a linkage rod 91 fixedly connected to the outer end of the quadcopter 3. The side end of the linkage rod 91 is rotatably connected to a first contact plate 92 and a second contact plate 93. The direction of rotation of the first contact plate 92 is opposite to that of the second contact plate 93.

[0042] Working principle of this embodiment:

[0043] During the forward rotation of the cleaning rod 5, it encounters the first contact plate 92 and rotates rapidly around the fixed shaft 7, followed by shaking, which effectively shakes off its own impurities and prevents them from accumulating at the bottom of the cleaning rod 5. Subsequently, it returns to its initial position under the action of the reset component 8 and comes into contact with the oil seal 4 again. Then it touches the first contact plate 92 again, and so on. When the cleaning rod 5 rotates in the reverse direction, it can push the first contact plate 92 to rotate, so there is no motion interference.

[0044] In this embodiment, the spindle box 1 rotates in one direction, which can achieve a cleaning effect.

[0045] Example 3:

[0046] Please see Figures 1-5 This utility model provides a technical solution, which, compared with the above solution, adds the following technical features: the multiple cleaning rods 5 are spaced apart and facing opposite directions, so that the oil seal 4 can be automatically cleaned when the spindle box 1 rotates clockwise or counterclockwise.

[0047] The side end of the linkage rod 91 is also rotatably connected to a second contact plate 93, and the direction of rotation of the first contact plate 92 is opposite to that of the second contact plate 93.

[0048] The cleaning rod 5 has a slot 11, which is divided into an outer slot 11 and an inner slot 11. The outer slot 11 corresponds to the first contact plate 92, and the inner slot 11 corresponds to the second contact plate 93. The cleaning rod 5 includes two types of cleaning rods 5, one type of cleaning rod 5 is clockwise, and the other type of cleaning rod 5 is counterclockwise.

[0049] When the cleaning rod 5 rotates in the forward direction, one type of cleaning rod 5 can pass through the inner slot 11, pass through the second contact plate 93, and rely on the first contact plate 92 to complete the lifting and shaking. When the cleaning rod 5 rotates in the reverse direction, another type of cleaning rod 5 can pass through the outer slot 11, pass through the first contact plate 92, and rely on the second contact plate 93 to complete the lifting and shaking. Thus, the self-cleaning of the cleaning rod 5 can be achieved regardless of whether the spindle box 1 rotates in the forward or reverse direction, thereby improving the cleaning effect.

[0050] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-cleaning oil seal structure comprising an oil seal (4), characterized by: The oil seal (4) is provided with a spindle box (1), a transmission flange (2) and a four-axis body (3). The side end of the spindle box (1) is fixedly connected to the transmission flange (2). The transmission flange (2) is rotatably disposed inside the four-axis body (3). The inner ring of the oil seal (4) is rotatably connected to the transmission flange (2). The outer ring of the oil seal (4) is fixedly connected to the inner wall of the four-axis body (3). The four-axis body (3) is provided with a cleaning part (6). The cleaning part (6) includes a cleaning rod (5), which is located in the gap between the spindle box (1) and the four-axis body (3). The cleaning rod (5) is responsible for rotating with the spindle box (1) and scraping off impurities from the surface of the oil seal (4).

2. The self-cleaning oil seal structure according to claim 1, characterized by: The cleaning rod (5) is arranged at an angle, and the end of the cleaning rod (5) is provided with a cleaning part (6). The cleaning part (6) is arc-shaped and fits well with the outer wall of the oil seal (4).

3. A self-cleaning oil seal structure according to claim 2, characterized in that: The cleaning part (6) also includes a fixed shaft (7) fixedly connected to the outside of the spindle box (1). The cleaning rod (5) has a shaft hole. The cleaning rod (5) rotates outside the fixed shaft (7) through the shaft hole. The outer end of the cleaning rod (5) is provided with a reset member (8). The outer end of the quadcopter (3) is provided with a contact block (9). The contact block (9) is responsible for driving the cleaning rod (5) to shake off the impurities adhering to itself. The reset member (8) is used to help the cleaning rod (5) return to its initial position.

4. The self-cleaning oil seal structure according to claim 3, characterized in that: The reset component (8) is a reset spring. A fixing block is fixedly connected to the outside of the spindle box (1). The fixing block is connected to the cleaning rod (5) through the reset spring.

5. A self-cleaning oil seal structure according to claim 3, characterized in that: The reset spring is a torsion spring, one end of which is connected to the drive box and the other end is connected to the cleaning rod (5).

6. A self-cleaning oil seal structure according to claim 4, characterized in that: Multiple cleaning rods (5) are spaced apart and facing opposite directions, so that the oil seal (4) can be automatically cleaned when the spindle box (1) rotates clockwise or counterclockwise.

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