Knurled guide shaft sleeve

Abstract

The utility model discloses a knurled guide shaft sleeve which comprises a first knurled sleeve and a second knurled sleeve installed on the surface of the first knurled sleeve, one end of the second knurled sleeve is connected with an installation disc, a sleeve is installed inside the first knurled sleeve, and the inner wall of the sleeve is connected with a transmission shaft. The first knurling sleeve and the second knurling sleeve are assembled with the transmission shaft, then lubricating oil enters the oil groove in the inner wall of the oil collecting box and enters the oil collecting groove in the supporting table through the oil outlet, then redundant lubricating oil is stored, and then the oil inlet sealing valve is sealed. At the moment, pressure difference is generated at the gap, redundant lubricating oil in the oil collecting box is squeezed into the gap between the sleeve and the transmission shaft, lubricating oil can be conveniently and rapidly supplemented, and the lubricating effect between the knurling guide shaft sleeve and the transmission shaft is improved.

Description

Technical Field

[0001] This utility model relates to the field of bushing technology, specifically to a knurled guide bushing. Background Technology

[0002] Knurled guide bushings are components used in mechanical transmission devices. They are typically installed between a shaft and other parts, primarily serving to guide and support the shaft, ensuring its accuracy and stability during movement. They also reduce friction between the shaft and other components, improving transmission efficiency and extending the service life of the shaft and related parts.

[0003] In the prior art, for example, Chinese Patent (authorization announcement number CN222296741 U) discloses a knurled guide bushing, which includes a guide bushing, a first knurled bushing fixedly connected inside the guide bushing, a bushing fixedly connected to one end of the first knurled bushing, an oil passage gap formed between the bushing and the guide bushing, an oil storage space formed inside the bushing, a second knurled bushing fixedly connected to the guide bushing at the end of the bushing away from the first knurled bushing, the outer diameter of the bushing being smaller than the outer diameters of the first and second knurled bushings, and a second oil inlet hole provided on the bushing. The oil passage gap can store a portion of lubricating oil, ensuring that the guide bushing can still supply lubrication normally when the oil supply channel is blocked without generating severe friction, giving the staff a buffer time for maintenance, and thus significantly reducing the incidence of friction damage.

[0004] Specifically, in the aforementioned disclosed prior art solutions, a certain gap is reserved between the spacers to store a portion of lubricating oil, hoping to provide necessary lubrication between the bushing and the rotating shaft. However, in practical applications, it has been found that the amount of lubricating oil stored in this method is extremely limited. During the high-speed and long-term relative rotation of the bushing and the rotating shaft, the consumption of lubricating oil is significant. The lubricating oil stored solely in the spacers is far from sufficient to meet the bushing's continuous and stable lubrication needs. As operating time increases, the lubricating oil gradually depletes, and the coefficient of friction between the bushing and the rotating shaft increases rapidly, leading to accelerated wear and affecting the overall operational stability and reliability of the equipment. The vibration amplitude of the equipment increases significantly, generating abnormal noise, and in severe cases, it may even cause the bushing and rotating shaft to seize, or the equipment to shut down, greatly hindering production operations, increasing equipment maintenance costs and downtime losses, and negatively impacting production efficiency and economic benefits. Utility Model Content

[0005] The purpose of this invention is to provide a knurled guide bushing, aiming to solve the problem of the previously disclosed patent's design, which uses a certain gap in the bushing gap to store a portion of lubricating oil, hoping to provide necessary lubrication between the bushing and the rotating shaft. However, in practical applications, it has been found that the amount of lubricating oil stored in this method is extremely limited. During the high-speed and long-term relative rotation between the bushing and the rotating shaft, the consumption of lubricating oil is significant, and the lubricating oil stored in the bushing gap alone is far from meeting the bushing's continuous and stable lubrication needs. As the operating time increases, the lubricating oil gradually depletes, the coefficient of friction between the bushing and the rotating shaft increases rapidly, leading to accelerated wear and consequently affecting the overall operational stability and reliability of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a knurled guide bushing, comprising a first knurled bushing and a second knurled bushing mounted on the surface of the first knurled bushing, wherein one end of the second knurled bushing is connected to a mounting plate, and a sleeve is installed inside the first knurled bushing, wherein a drive shaft is connected to the inner wall of the sleeve.

[0007] An oil collection box is installed on the inner wall of the sleeve. A support is connected to the inner wall of the opening of the oil collection box. An oil collection groove is formed on the inner wall of the support. An oil outlet is formed on the outer wall of the support. An installation groove is formed at the bottom of the outer wall of the oil collection box. An oil collection box sealing ring is installed on the inner wall of the installation groove. A sealing block is connected to the top of the first knurled sleeve. A sealing groove is formed on the inner wall of the sealing block. A sealing ring is installed on the inner wall of the sealing groove.

[0008] To improve the lubrication effect of the bushing, as a preferred embodiment of the knurled guide bushing of this utility model, the surfaces of the first knurled bushing and the second knurled bushing are provided with knurled structures, and the oil collection box is made of stainless steel.

[0009] To facilitate the rapid supply of lubricating oil, in a preferred embodiment of the knurled guide bushing of this utility model, the oil outlet is connected to the support platform and the oil collection groove, and the oil collection box and the support platform together form a lubricating oil groove.

[0010] To facilitate sealing of lubrication gaps, in a preferred embodiment of the knurled guide bushing of this invention, the oil collection box sealing ring and the mounting groove on the outer wall of the oil collection box form an interference fit, and the oil collection box is sealed to the inner wall of the sleeve through the oil collection box sealing ring.

[0011] To facilitate sealing of the top of the bushing, in a preferred embodiment of the knurled guide bushing of this invention, the sealing block is sealed to the drive shaft via a sealing ring.

[0012] To facilitate docking of the bushing with external devices, in a preferred embodiment of the knurled guide bushing of this utility model, the surface of the mounting plate is provided with mounting holes, and a base support is installed at the bottom end of the second knurled bushing.

[0013] To ensure sealing, in a preferred embodiment of the knurled guide bushing of this utility model, the surface of the first knurled bushing is provided with an oil inlet groove, and an oil inlet sealing valve is threadedly connected to the opening of the oil inlet groove. An oil outlet groove is provided on the side of the first knurled bushing opposite to the oil inlet groove, and an oil outlet sealing valve is threadedly connected to the surface of the oil outlet groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention involves assembling a first knurled sleeve and a second knurled sleeve with the drive shaft through a sleeve. One end of the drive shaft is then brought into contact with a support on the surface of the oil collection box. A sealing block is then installed and sealed at the top of the first knurled sleeve. Lubricating oil enters through the inlet groove and flows along the gap between the sleeve and the drive shaft. The oil then enters the oil groove on the inner wall of the oil collection box and exits through the outlet into the oil collection groove inside the support, storing excess lubricating oil. The inlet valve is then sealed. When there is insufficient lubricating oil in the gap between the sleeve and the drive shaft, a pressure difference is created, forcing excess lubricating oil inside the oil collection box into the gap between the sleeve and the drive shaft, facilitating rapid replenishment of lubricating oil and improving the lubrication effect between the knurled guide sleeve and the drive shaft. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall assembly structure of the knurled guide bushing of this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the second knurled sleeve of this utility model.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the knurled guide sleeve of this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the oil collection box of this utility model.

[0021] Figure 5 This is a schematic diagram of the sealing ring installation structure of this utility model.

[0022] In the diagram: 1. First knurled sleeve; 101. Sleeve; 2. Second knurled sleeve; 3. Mounting plate; 31. Mounting hole; 4. Drive shaft; 5. Oil collection box; 6. Support platform; 7. Oil collection groove; 8. Oil outlet; 9. Mounting groove; 10. Oil collection box sealing ring; 11. Sealing block; 12. Sealing groove; 13. Sealing ring; 14. Base support; 15. Oil inlet groove; 16. Oil inlet sealing valve; 17. Oil outlet groove; 18. Oil outlet sealing valve. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 The present invention provides the following technical solution: a knurled guide bushing, comprising a first knurled bushing 1 and a second knurled bushing 2 mounted on the surface of the first knurled bushing 1, one end of the second knurled bushing 2 being connected to a mounting plate 3, and a sleeve 101 being installed inside the first knurled bushing 1, with a drive shaft 4 connected to the inner wall of the sleeve 101.

[0025] An oil collection box 5 is installed on the inner wall of the sleeve 101. A support platform 6 is connected to the inner wall of the opening of the oil collection box 5. An oil collection groove 7 is opened on the inner wall of the support platform 6. An oil outlet 8 is opened on the outer wall of the support platform 6. An installation groove 9 is opened at the bottom of the outer wall of the oil collection box 5. An oil collection box sealing ring 10 is installed on the inner wall of the installation groove 9. A sealing block 11 is connected to the top of the first knurled sleeve 1. A sealing groove 12 is opened on the inner wall of the sealing block 11. A sealing ring 13 is installed on the inner wall of the sealing groove 12.

[0026] Preferably, the surfaces of the first knurled sleeve 1 and the second knurled sleeve 2 are provided with knurled structures, and the oil collection box 5 is made of stainless steel. In actual use, the knurled structure can increase the friction between the bushing and other components, prevent the bushing from rotating or sliding at the installation position, and play a better role in fixing.

[0027] Preferably, the oil outlet 8 passes through the support 6 and connects to the oil collection groove 7, and the oil collection box 5 and the support 6 together form a lubricating oil groove. In actual use, the structure of the oil outlet 8, which is larger inside and smaller outside, facilitates the rapid filling of lubricating oil, thereby improving the safety of the bushing.

[0028] Preferably, the oil collection box sealing ring 10 and the mounting groove 9 on the outer wall of the oil collection box 5 form an interference fit, and the oil collection box 5 is sealed to the inner wall of the sleeve 101 through the oil collection box sealing ring 10. In actual use, the oil collection box sealing ring 10 on the outer wall of the oil collection box sealing ring 10 is sealed to the inner wall of the sleeve 101 to ensure the sealing of the gap between the sleeve 101 and the drive shaft 4.

[0029] Preferably, the sealing block 11 is sealed to the drive shaft 4 via a sealing ring 13. In practical use, the sealing ring 13 facilitates the sealing connection of the top of the first knurled sleeve 1, ensuring safety during use.

[0030] Preferably, the surface of the mounting plate 3 has mounting holes 31, and the bottom end of the second knurled sleeve 2 is fitted with a base support 14. In actual use, the mounting holes 31 on the surface of the mounting plate 3 facilitate the docking of the second knurled sleeve 2 with the docking device.

[0031] Preferably, the surface of the first knurled sleeve 1 is provided with an oil inlet groove 15, and an oil inlet sealing valve 16 is threadedly connected to the opening of the oil inlet groove 15. An oil outlet groove 17 is provided on the side of the first knurled sleeve 1 opposite to the oil inlet groove 15, and an oil outlet sealing valve 18 is threadedly connected to the surface of the oil outlet groove 17. In actual use, the sealing performance of the bushing is ensured by sealing the oil inlet sealing valve 16 and the oil outlet sealing valve 18 at the oil inlet groove 15 and the oil outlet groove 17.

[0032] The working principle of this utility model is as follows: First, the drive shaft 4 is passed through the sleeve 101, so that the first knurled sleeve 1 and the second knurled sleeve 2 are assembled with the drive shaft 4. Then, one end of the drive shaft 4 is brought into contact with the support plate 6 on the surface of the oil collection box 5. Then, the sealing block 11 is installed and sealed at the top of the first knurled sleeve 1. At this time, lubricating oil enters through the oil inlet groove 15. Then, the lubricating oil flows along the gap between the sleeve 101 and the drive shaft 4. Then, the lubricating oil enters the oil groove on the inner wall of the oil collection box 5 and enters the support plate 6 through the oil outlet 8. Excess lubricating oil is stored in the internal oil collection groove 7. Then, the oil inlet sealing valve 16 is sealed. When there is a lack of lubricating oil in the gap between the sleeve 101 and the drive shaft 4, a pressure difference is generated in the gap. At this time, the excess lubricating oil in the oil collection box 5 is squeezed into the gap between the sleeve 101 and the drive shaft 4, which facilitates quick replenishment of lubricating oil and improves the lubrication effect between the knurled guide bushing and the drive shaft 4. In addition, by sealing the oil inlet sealing valve 16 and the oil outlet sealing valve 18 at the oil inlet groove 15 and the oil outlet groove 17, the sealing and safety of the bushing during use are ensured.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A knurled guide bushing, comprising a first knurled bushing (1) and a second knurled bushing (2) mounted on the surface of the first knurled bushing (1), characterized in that: One end of the second knurled sleeve (2) is connected to a mounting plate (3), and a sleeve (101) is installed inside the first knurled sleeve (1). A drive shaft (4) is connected to the inner wall of the sleeve (101). An oil collection box (5) is installed on the inner wall of the sleeve (101). A support (6) is connected to the inner wall of the opening of the oil collection box (5). An oil collection groove (7) is opened on the inner wall of the support (6). An oil outlet (8) is opened on the outer wall of the support (6). An installation groove (9) is opened at the bottom of the outer wall of the oil collection box (5). An oil collection box sealing ring (10) is installed on the inner wall of the installation groove (9). A sealing block (11) is connected to the top of the first knurled sleeve (1). A sealing groove (12) is opened on the inner wall of the sealing block (11). A sealing ring (13) is installed on the inner wall of the sealing groove (12).

2. The knurled guide bushing according to claim 1, characterized in that: The surfaces of the first knurled sleeve (1) and the second knurled sleeve (2) are provided with knurled structures, and the oil collection box (5) is made of stainless steel.

3. The knurled guide bushing according to claim 1, characterized in that: The oil outlet (8) is connected to the support platform (6) and the oil collection tank (7), and the oil collection box (5) and the support platform (6) together form a lubricating oil tank.

4. The knurled guide bushing according to claim 1, characterized in that: The oil collection box sealing ring (10) and the mounting groove (9) on the outer side wall of the oil collection box (5) form an interference fit, and the oil collection box (5) is sealed to the inner wall of the sleeve (101) through the oil collection box sealing ring (10).

5. A knurled guide bushing according to claim 1, characterized in that: The sealing block (11) is sealed to the drive shaft (4) through the sealing ring (13).

6. A knurled guide bushing according to claim 1, characterized in that: The mounting plate (3) has mounting holes (31) on its surface, and the bottom end of the second knurled sleeve (2) is fitted with a base support (14).

7. A knurled guide bushing according to claim 1, characterized in that: The first knurled sleeve (1) has an oil inlet groove (15) on its surface. An oil inlet sealing valve (16) is threadedly connected to the opening of the oil inlet groove (15). An oil outlet groove (17) is provided on the side of the first knurled sleeve (1) opposite to the oil inlet groove (15). An oil outlet sealing valve (18) is threadedly connected to the surface of the oil outlet groove (17).

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