A device for preventing the splashing of bearing lubricating oil

Abstract

This invention discloses a device for preventing bearing lubricating oil splashing, comprising a sleeve, a fixing ring connected to the left end of the sleeve, and multiple air chambers provided on the left side of the fixing ring. The air gun generates negative pressure to fix the device to a mounting plate inside the printer. The printer's rotating shaft has two installation methods, in which the bearings are positioned differently. The sleeve of this invention, a sliding connecting plate inside the sleeve, and a shielding strip mounted on the connecting plate that can be interconnected to form a ring can shield the bearings in different positions in both installation methods, preventing lubricating oil splashed out during bearing movement from contaminating the printed matter. The connecting plate and shielding strip in this invention can be adjusted left and right to adapt to different printer sizes. The fixing ring of this invention is connected to the mounting plate via negative pressure, eliminating the need for drilling and facilitating installation.

Description

Technical Field

[0001] This invention relates to the field of printer technology, and more particularly to a device for preventing bearing lubricating oil from splashing. Background Technology

[0002] Currently, most mainstream printing presses use ordinary bearings. During high-speed operation, the lubricating oil in the gaps becomes more fluid due to heat and splashes during extrusion. This splashes irregularly onto the printed products, resulting in quality defects and a decrease in the pass rate and economic benefits.

[0003] The current solution to this problem is to install a baffle inside the printing press to block the lubricating oil that splashes out of the bearing. However, there are two installation methods for the rotating shaft inside the printing press:

[0004] One type is a rotating shaft that is rotatably connected to a fixed mounting plate via bearings;

[0005] Secondly, a fixing rod is fixed on the mounting plate, and the rotating shaft is sleeved on the fixing rod and can rotate relative to the fixing rod through the bearing.

[0006] The bearings are located in different positions in the two schemes mentioned above, making it difficult to design a baffle that can act on the bearings in both positions simultaneously. This requires separate design for each rotating shaft in the printing press, which is too time-consuming.

[0007] Furthermore, the method of shielding the bearing by setting up a baffle increases the difficulty of lubrication and maintenance of the bearing, so it needs to be improved. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a device to prevent bearing lubricating oil from splashing, thereby solving the problem of lubricating oil in the bearings of a printer easily flying out and contaminating printed materials.

[0009] The present invention provides the following technical solution: a device for preventing bearing lubricating oil splashing, comprising a sleeve, a fixing ring connected to the left end of the sleeve, a plurality of air chambers provided in the left side surface of the fixing ring, the air chambers being arranged at equal angles with the axis of the sleeve and the fixing ring as the center, and a sliding hole penetrating the sleeve to the right in the right side surface of the air chamber, a piston slidably connected to the left and right in the air chamber, and a control rod fixed in the right side surface of the piston, passing through the sliding hole and extending to the right side of the sleeve, and a control mechanism for controlling the left and right position of the control rod being provided in the sleeve;

[0010] The right edge of the sleeve surface is recessed to form an inner ring. The inner ring has multiple sliding grooves, and a connecting plate is slidably connected to the sliding grooves. The side of the connecting plate away from the axis of the inner ring is equipped with a shielding strip and a Velcro surface. The shielding strip is provided with a Velcro hook surface on the side close to the axis of the inner ring. The sleeve is provided with a locking mechanism for locking the left and right positions of the connecting plate.

[0011] Preferably, the air cavity, the slide groove, and the connecting plate are all arranged at equal angles to the axis of the sleeve.

[0012] Preferably, the control rod is rotatably connected to the right side of the first piston. The control mechanism includes a threaded sleeve fixed to the control rod, and the threaded sleeve is threadedly connected to the threaded hole in the sliding hole. A locking plate is also slidably connected to the outside of the control rod. The locking plate is located on the right side of the sleeve, and the left side of the locking plate is provided with multiple locking pins. The right side of the sleeve is provided with multiple locking grooves for accommodating the locking pins.

[0013] Preferably, the right end of the control lever is provided with a spring plate, and the spring plate is connected to the locking plate by a spring.

[0014] Preferably, the locking mechanism includes a connecting cavity, which is located on the side of the sliding groove away from the inner ring axis, and a second piston is slidably connected inside and outside the connecting cavity. The side of the second piston is provided with a friction plate for abutting against the connecting plate and locking it in position. The connecting cavity is also connected to the air cavity through an airflow channel.

[0015] Preferably, the connecting plate has an arc-shaped plate on its side for increasing the width of the connecting plate.

[0016] Preferably, an oil injection pipe is provided on the inner curved surface of the sleeve, and an oil injection hole is provided on the outer curved surface of the sleeve, and the oil injection hole is connected to the oil injection pipe.

[0017] Preferably, the oil injection pipe extends downwards and then bends to the left.

[0018] Preferably, the inner diameter of the oil injection pipe gradually decreases in the leftward direction.

[0019] Preferably, it also includes a stopper plate, the stopper plate being made of rubber, and the length of the stopper plate being adapted to the length of the oil injection hole.

[0020] This invention provides a device for preventing bearing lubricating oil splashing, which has the following beneficial effects:

[0021] There are two installation methods for the shaft inside the printer, and the bearings are located in different positions in these two installation methods. The sleeve, connecting plate and shielding strip that can be connected to form a ring in this invention can shield the bearings in different positions in the two installation methods to prevent the lubricating oil thrown out by the bearings from contaminating the printed matter.

[0022] The connecting plate and shielding strip in this invention can be adjusted left and right to adapt to printers of different sizes;

[0023] The fixing ring of the present invention is connected to the mounting plate by negative pressure, which eliminates the need for drilling and facilitates installation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the appearance of the present invention;

[0025] Figure 2 yes Figure 1 Enlarged view of the right side of the connecting plate;

[0026] Figure 3 This is a schematic diagram of the structure of the present invention when mounted on a fixed plate;

[0027] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 yes Figure 3 Enlarged diagram of point B in the middle.

[0029] In the picture:

[0030] 11. Sleeve; 12. Retaining ring; 13. Air chamber; 14. Sliding hole; 15. Piston No. 1; 16. Control rod; 17. Inner ring; 18. Connecting plate; 19. Shielding strip; 20. Velcro surface; 21. Threaded sleeve; 22. Locking plate; 23. Locking post; 24. Spring plate; 25. Connecting cavity; 26. Piston No. 2; 27. Friction plate; 28. Airflow channel; 29. ​​Arc plate; 31. Oil injection hole; 32. Plug plate; 101. Control mechanism; 102. Locking mechanism. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Reference Figures 1-5 According to an embodiment of a device for preventing bearing lubricating oil splashing according to the present invention, a sleeve 11 is included. A fixing ring 12 is connected to the left end of the sleeve 11. A plurality of air chambers 13 are provided in the left side surface of the fixing ring 12. The air chambers 13 are arranged at equal angles with the axes of the sleeve 11 and the fixing ring 12 as the center. A sliding hole 14 penetrating the sleeve 11 to the right is provided in the right side surface of the air chamber 13. A piston 15 is slidably connected to the left and right sides of the air chamber 13. A control rod 16 is fixed to the right side surface of the piston 15, passing through the sliding hole 14 and extending to the right side of the sleeve 11. A control mechanism 101 for controlling the left and right positions of the control rod 16 is provided in the sleeve 11. A plurality of sealing rings are also provided in the left side surface of the fixing ring 12. When the control mechanism 101 controls the control rod 16 and the piston 15 to move to the right, the fixing ring 12 and the sleeve 11 are fixed to the mounting plate 91 inside the printer by negative pressure adsorption (e.g., Figure 3As shown), the rotating shaft 93, which is rotatably connected to the mounting plate 91 via the bearing 92, will be located within the sleeve 11 and the retaining ring 12. When the rotating shaft 93 rotates and the bearing 92 moves, the lubricating oil overflowing from the bearing 92 will be blocked by the sleeve 11 and the retaining ring 12 to prevent it from splashing onto the printed matter inside the printer (this installation method of the bearing 92 and the rotating shaft 93 is the first installation method, such as...). Figure 3 (As shown in the middle left half).

[0036] The second installation method for the rotating shaft 93 and the bearing 92 inside the printer is as follows: the fixing rod is fixed on the mounting plate 91, and the rotating shaft 93 is sleeved on the fixing rod and connected to the fixing rod through the bearing (to... Figure 3 (As shown in the right half of the middle section), in order to ensure that the rotating shaft 93 can also be shielded by the device for preventing bearing lubricating oil splashing fixed on the mounting plate 91 in this installation method to prevent oil leakage, in the second embodiment of the device for preventing bearing lubricating oil splashing, the right edge of the curved surface of the sleeve 11 is recessed to form an inner ring 17. The inner ring 17 is provided with multiple sliding grooves, and a connecting plate 18 is slidably connected to the left and right sides of the sliding grooves. The side of the connecting plate 18 away from the axis of the inner ring 17 is equipped with a shielding strip 19 and a Velcro surface 20. The shielding strip 19 is provided with a Velcro hook surface on the side near the axis of the inner ring 17, and the sleeve 11 is provided with a locking mechanism 102 for locking the left and right positions of the connecting plate 18.

[0037] According to the distance between the shaft 93 and the mounting plate 91 in the second installation method, the operator can pull out the connecting plate 18 of the corresponding length to the right so that the connecting plate 18 is closer to the left end of the shaft 93. Then, each of the shielding strips 19 is connected to the Velcro surface 20 on the other connecting plate 18 and forms a loop to shield the lubricating oil overflowing from the bearing 92 in this second installation method.

[0038] In this embodiment, to prevent the shielding strip 19, which has an irregular shape, from contacting the fixing rod after being straightened, four air chambers 13, sliding grooves, and connecting plates 18 are provided at equal angles to the axis of the sleeve 11. In addition, an arc-shaped plate 29 is provided on the side of the connecting plate 18 to increase the width of the connecting plate 18. The arc-shaped plate 29 is used to support the shielding strip 19.

[0039] The control rod 16 is rotatably connected to the right side of the first piston 15. The control mechanism 101 includes a threaded sleeve 21 fixed to the control rod 16, and the threaded sleeve 21 is threadedly connected to the threaded hole in the sliding hole 14. A locking plate 22 is also slidably connected to the outside of the control rod 16. The locking plate 22 is located on the right side of the sleeve 11, and a plurality of locking pins 23 are provided on the left side of the locking plate 22. A plurality of locking grooves for accommodating the locking pins 23 are provided on the right side of the sleeve 11. A spring plate 24 is provided at the right end of the control rod 16, and the spring plate 24 is connected to the locking plate 22 by a spring.

[0040] When the operator needs to unlock or lock the sleeve 11, the operator can pull the locking plate 22 to the right, causing the locking pin 23 to leave the locking groove. Then, the operator rotates the locking plate 22, causing the threaded sleeve 21 and the control rod 16 to rotate. At this time, the first piston 15 moves left and right. After the first piston 15 is attached to the mounting plate 91 and moves to the left, the sleeve 11 and the fixing ring 12 can be removed. When the fixing ring 12 is attached to the mounting plate 91 and the first piston 15 moves to the right, a negative pressure is generated in the air chamber 13, which fixes the fixing ring 12 and the sleeve 11 to the mounting plate 91. After the operator finishes adjusting and releases the handle, the locking plate 22 will slide to the left under the action of the spring, causing the locking pin 23 to be embedded in the locking groove, so as to prevent the printer vibration from affecting the angle of the control rod 16.

[0041] The locking mechanism 102 includes a connecting cavity 25, which is located on the side of the slide groove away from the axis of the inner ring 17. A second piston 26 is slidably connected inside and outside the connecting cavity 25. The side of the second piston 26 is provided with a friction plate 27 for abutting against the connecting plate 18 and locking it in position. The connecting cavity 25 is also connected to the air chamber 13 through an airflow channel 28. When the first piston 15 is controlled by the control mechanism 101 and is at the rightmost position, the second piston 26 drives the friction plate 27 to press against the connecting plate 18 to prevent the connecting plate 18 from shaking under the vibration of the printer after the left and right positions are adjusted.

[0042] Furthermore, when one of the locking plates 22 is loosened and there is no negative pressure in one of the air chambers 13, the fixing ring 12 and the sleeve 11 are still in a fixed state, and at this time the connecting plate 18 connected to the locking plate 22 can be adjusted in position, making operation convenient.

[0043] In the second installation method of the bearing 92 and the shaft 93, if oil needs to be injected into the bearing 92, the operator can lift the shielding strip 19 and proceed directly. In order to facilitate oil injection in the first installation method of the bearing 92 and the shaft 93, an oil injection pipe is provided on the inner curved surface of the sleeve 11, and an oil injection hole 31 is provided on the outer curved surface of the sleeve 11, and the oil injection hole 31 is connected to the oil injection pipe. In order to make the end of the oil injection pipe closer to the bearing 92, the oil injection pipe extends downward and then bends to the left.

[0044] In addition, the inner diameter of the oil injection pipe gradually decreases in the leftward direction so that oil can be stored in the oil injection pipe and the oil injection hole 31.

[0045] In order to allow the oil in the oil injection hole 31 and the oil injection pipe to be squeezed out, a plug plate 32 is also included. The plug plate 32 is made of rubber and its length is adapted to the length of the oil injection hole 31. When the operator presses down the plug plate 32, the oil in the oil injection hole 31 and the oil injection pipe can gush out.

[0046] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A device for preventing bearing lubricating oil splashing, comprising a sleeve (11), characterized in that: The left end of the sleeve (11) is connected to a fixing ring (12). The left side of the fixing ring (12) is provided with multiple air chambers (13). The air chambers (13) are arranged at equal angles with the axis of the sleeve (11) and the fixing ring (12) as the center. The right side of the air chamber (13) is provided with a sliding hole (14) that passes through the sleeve (11) to the right. A piston (15) is slidably connected to the left and right in the air chamber (13). A control rod (16) is fixed on the right side of the piston (15) that passes through the sliding hole (14) and extends to the right side of the sleeve (11). The sleeve (11) is provided with a control mechanism (101) for controlling the left and right position of the control rod (16). The right edge of the curved surface of the sleeve (11) is recessed to form an inner ring (17). The inner ring (17) is provided with multiple sliding grooves, and a connecting plate (18) is slidably connected to the sliding grooves. The side of the connecting plate (18) away from the axis of the inner ring (17) is equipped with a shielding strip (19) and a Velcro surface (20). The shielding strip (19) is provided with a Velcro hook surface on the side close to the axis of the inner ring (17), and the sleeve (11) is provided with a locking mechanism (102) for locking the left and right positions of the connecting plate (18). When the control mechanism (101) controls the control lever (16) and the first piston (15) to move to the right, the fixing ring (12) and the sleeve (11) will be fixed to the mounting plate (91) inside the printer by negative pressure adsorption. The rotating shaft (93) connected to the mounting plate (91) by the bearing (92) will be located inside the sleeve (11) and the fixing ring (12), or the rotating shaft (93) will be connected to the ring formed on the Velcro surface (20) on another connecting plate (18) by each of the shielding strips (19) to achieve the connection between the rotating shaft (93) and the fixing rod fixed on the mounting plate (91).

2. The device for preventing bearing lubricating oil splashing according to claim 1, characterized in that: The air chamber (13), the slide groove, and the connecting plate (18) are all arranged at equal angles with the axis of the sleeve (11) as the center.

3. The device for preventing bearing lubricating oil splashing according to claim 1, characterized in that: The control rod (16) is rotatably connected to the right side of the first piston (15). The control mechanism (101) includes a threaded sleeve (21) fixed on the control rod (16), and the threaded sleeve (21) is threadedly connected to the threaded hole in the sliding hole (14). A locking plate (22) is also slidably connected to the outside of the control rod (16). The locking plate (22) is located on the right side of the sleeve (11), and a plurality of locking pins (23) are provided on the left side of the locking plate (22). A plurality of locking grooves for accommodating the locking pins (23) are provided on the right side of the sleeve (11).

4. The device for preventing bearing lubricating oil splashing according to claim 3, characterized in that: The right end of the control lever (16) is provided with a spring plate (24), and the spring plate (24) is connected to the locking plate (22) by a spring.

5. The device for preventing bearing lubricating oil splashing according to claim 1, characterized in that: The locking mechanism (102) includes a connecting cavity (25), which is located on the side of the groove away from the axis of the inner ring (17). A second piston (26) is slidably connected inside and outside the connecting cavity (25). A friction plate (27) is provided on the side of the second piston (26) for abutting against the connecting plate (18) and locking it in position. The connecting cavity (25) is also connected to the air cavity (13) through an airflow channel (28).

6. The device for preventing bearing lubricating oil splashing according to claim 1, characterized in that: The connecting plate (18) has an arc-shaped plate (29) on its side for increasing the width of the connecting plate (18).

7. The device for preventing bearing lubricating oil splashing according to claim 1, characterized in that: An oil injection pipe is provided on the inner curved surface of the sleeve (11), and an oil injection hole (31) is provided on the outer curved surface of the sleeve (11), and the oil injection hole (31) is connected to the oil injection pipe.

8. The device for preventing bearing lubricating oil splashing according to claim 7, characterized in that: The oil injection pipe extends downwards and then bends to the left.

9. The device for preventing bearing lubricating oil splashing according to claim 8, characterized in that: The inner diameter of the oil injection pipe gradually decreases in the leftward direction.

10. The device for preventing bearing lubricating oil splashing according to claim 9, characterized in that: It also includes a stopper plate (32), which is made of rubber and whose length is adapted to the length of the oil injection hole (31).

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