Power head bearing lubricating mechanism

Abstract

The utility model discloses a power head bearing lubricating mechanism, which belongs to the technical field of machine tools, and is characterized by comprising a power head box body and a main shaft, the main shaft is arranged at the top of the power head box body, and a sealing mechanism for lubricating the main shaft is arranged outside the main shaft. A supporting assembly for improving the stability of the sealing mechanism is arranged at the top of the power head box body, the sealing mechanism is firstly opened during use, then lubricating oil is injected into the sealing mechanism, and then the sealing mechanism is closed, so that parts in the sealing mechanism are directly soaked in the lubricating oil; by arranging the power head box body, the service life of parts in the device can be prolonged, and then the problem that when an existing device operates, some parts in the device need to be lubricated for a certain period of time, and consequently the parts are abraded is effectively solved, and by arranging the supporting assembly, when the power head box body operates, the supporting assembly can prevent the parts from being abraded when the power head box body operates. Lubricating oil leaks due to poor stability of a sealing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a bearing lubrication mechanism for a power head. Background Art

[0002] In the field of machine tools, a power head refers to a device used to drive and control the rotation of a cutting tool or other tool to achieve different types of cutting operations, such as milling, drilling, boring, etc. The design of the power head depends on the required machining operation, material and workpiece requirements.

[0003] In the power head, since the shell is installed on the bed of the machine tool, the power head spindle rotates and the spindle sleeve performs feed motion, so there is frequent relative motion during its working process, and lubrication is required between the relatively moving parts.

[0004] The Chinese utility model patent with the current announcement number: CN219325044 U discloses a spiral lubrication structure of a power head. Through the design of the spiral oil guide groove, the oil flows in the spiral oil guide groove after entering the motor mounting seat, thereby lubricating and cooling the motor mounting seat and the sleeve. Through the upper and lower spiral grooves, the oil can fully lubricate the components, and the structure is simple and easy to process.

[0005] In view of the above problems, the existing patents provide solutions, but when in use, the lubricating oil still needs a certain amount of time to enter the interior of the device to lubricate the device. Therefore, when the device is operating, some parts inside the device still need a certain amount of time to be lubricated, which will cause wear of the parts.

[0006] Therefore, a power head bearing lubrication mechanism is proposed. Utility Model Content

[0007] The utility model provides a power head bearing lubrication mechanism, aiming to solve the problem that the lubricating oil of the existing power head bearing lubrication mechanism needs a certain time to enter the interior of the device to lubricate the device when in use, so when the device is operating, some parts inside the device need a certain time to be lubricated, which will cause wear of the parts.

[0008] The utility model is implemented as follows: a power head bearing lubrication mechanism comprises a power head housing and a spindle, wherein the spindle is arranged at the top of the power head housing, a sealing mechanism for lubricating the spindle is arranged outside the spindle, and a supporting assembly for improving the stability of the sealing mechanism is arranged at the top of the power head housing;

[0009] The sealing mechanism includes a sealing cylinder, a tapered roller bearing, an extension ring, a pressure cover and a bolt. The sealing cylinder is welded to the top of the power head housing, the tapered roller bearing is arranged on the inner wall of the sealing cylinder, the extension ring is welded to the outer wall of the sealing cylinder, the pressure cover is clamped on the top of the sealing cylinder, the bottom of the bolt extends to the interior of the extension ring and is threadedly connected to the extension ring, and the number of the tapered roller bearings is several and evenly distributed.

[0010] In order to improve the stability of the sealing cylinder, as a preferred power head bearing lubrication mechanism of the utility model, the support assembly includes a support plate and a reinforcing rib, the support plate is bolted to the top of the power head housing, the reinforcing rib is welded to the top of the support plate, and the outer wall of the reinforcing rib is welded to the outer wall of the sealing cylinder.

[0011] In order to protect the tapered roller bearings, as a preferred power head bearing lubrication mechanism of the utility model, a first spacer is provided on the inner wall of the sealing cylinder, and a second spacer is provided on the outer wall of the main shaft, and the first spacer and the second spacer are located between two adjacent tapered roller bearings.

[0012] In order to support the main shaft and bear the axial load, as a preferred lubrication mechanism for the power head bearing of the utility model, a cylindrical roller bearing that supports the main shaft and bears the axial load is provided on the inner wall of the top end of the sealing cylinder.

[0013] In order to improve the corrosion resistance of the first spacer and the second spacer, as a preferred lubrication mechanism for the power head bearing of the utility model, the first spacer and the second spacer are both made of stainless steel, and the first spacer and the second spacer are both used to protect the tapered roller bearing.

[0014] In order to fix the tapered roller bearing and ensure that its position remains unchanged, as a preferred power head bearing lubrication mechanism of the utility model, a retaining ring is welded on the inner wall of the bottom end of the sealing cylinder, the retaining ring is made of steel, and the retaining ring is used to fix the tapered roller bearing and ensure that its position remains unchanged.

[0015] In order to prevent the lubricating oil from leaking out, as a preferred lubricating mechanism for the power head bearing of the utility model, an oil seal is welded to the bottom of the pressure cover, and the material of the oil seal is fluororubber, and the oil seal is used to prevent the lubricating oil from leaking out.

[0016] In order to provide anti-corrosion protection for the bolts, as a preferred lubrication mechanism for the power head bearing of the utility model, a zinc layer is sprayed on the outer wall of the bolt, and the zinc layer is used to provide anti-corrosion protection for the bolts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a sealing mechanism. When in use, the sealing mechanism is first opened, and then lubricating oil is injected into the interior of the sealing mechanism, and then the sealing mechanism is closed, so that the parts inside the sealing mechanism are directly immersed in the lubricating oil, thereby extending the service life of the parts inside the device, thereby effectively solving the problem that some parts inside the device need a certain amount of time to be lubricated when the existing device is in operation, which will cause wear of the parts.

[0019] 2. The utility model provides a support assembly, which can improve the stability of the sealing mechanism on the power head housing when in use, thereby preventing the sealing mechanism from leaking lubricating oil due to poor stability when the power head housing is in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the utility model;

[0021] Figure 2 It is a left view of the utility model;

[0022] Figure 3 For this utility model Figure 2 The three-dimensional cross-section view at AA in the middle;

[0023] Figure 4 For this utility model Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 For this utility model Figure 3 Enlarged view of point B in the middle.

[0025] Description of the numbers in the figure:

[0026] 1. Power head housing; 2. Spindle; 3. Sealing mechanism; 4. Support assembly; 5. First spacer; 6. Second spacer; 7. Cylindrical roller bearing; 8. Retaining ring; 9. Oil seal; 301. Sealing cylinder; 302. Tapered roller bearing; 303. Extension ring; 304. Pressure cover; 305. Bolt; 401. Support plate; 402. Reinforcing rib. Implementation

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] See also Figure 1-5The utility model provides a technical solution: a power head bearing lubrication mechanism, including a power head housing 1 and a spindle 2, the spindle 2 is arranged on the top of the power head housing 1, a sealing mechanism 3 for lubricating the spindle 2 is arranged outside the spindle 2, and a supporting component 4 for improving the stability of the sealing mechanism 3 is arranged on the top of the power head housing 1;

[0029] The sealing mechanism 3 includes a sealing cylinder 301, a tapered roller bearing 302, an extension ring 303, a pressure cover 304 and a bolt 305. The sealing cylinder 301 is welded to the top of the power head housing 1, the tapered roller bearing 302 is arranged on the inner wall of the sealing cylinder 301, the extension ring 303 is welded to the outer wall of the sealing cylinder 301, the pressure cover 304 is clamped on the top of the sealing cylinder 301, the bottom of the bolt 305 extends to the inside of the extension ring 303 and is threadedly connected to the extension ring 303, and the number of tapered roller bearings 302 is several and evenly distributed.

[0030] In this embodiment: by setting a sealing cylinder 301, a tapered roller bearing 302, an extension ring 303, a pressure cover 304 and a bolt 305, when in use, the lubricating oil is injected into the space formed between the sealing cylinder 301 and the outer wall of the main shaft 2, and the main shaft 2 is connected to the power head housing 1, so that the main shaft 2 is immersed in the lubricating oil inside the power head housing 1 to achieve the effect of lubrication and prolonging the service life of the main shaft 2, and then the pressure cover 304 is placed on the top of the sealing cylinder 301, and then fixed by the bolt 305 to seal the sealing cylinder 301 and the main shaft 2. Compared with the traditional mechanism of adding butter to the main shaft 2, this sealing mechanism 3 can achieve a longer service life of the main shaft 2.

[0031] As a technical optimization solution of the utility model, the support assembly 4 includes a support plate 401 and a reinforcing rib 402. The support plate 401 is bolted to the top of the power head housing 1, the reinforcing rib 402 is welded to the top of the support plate 401, and the outer wall of the reinforcing rib 402 is welded to the outer wall of the sealing tube 301.

[0032] In this embodiment: by providing a support plate 401 and a reinforcing rib 402, when the power head housing 1 and the main shaft 2 are in operation, the coordinated use of the reinforcing rib 402 and the support plate 401 can greatly improve the stability of the sealing cylinder 301 on the top of the power head housing 1, and prevent the sealing cylinder 301 from shaking and causing the lubricating oil inside the sealing cylinder 301 to leak.

[0033] As a technical optimization solution of the utility model, a first spacer sleeve 5 is provided on the inner wall of the sealing cylinder 301 , a second spacer sleeve 6 is provided on the outer wall of the main shaft 2 , and the first spacer sleeve 5 and the second spacer sleeve 6 are located between two adjacent tapered roller bearings 302 .

[0034] In this embodiment, by providing the first spacer sleeve 5 and the second spacer sleeve 6, the first spacer sleeve 5 and the second spacer sleeve 6 can be used to provide a gap, protect the tapered roller bearing 302 and adjust the axial gap when in use.

[0035] As a technical optimization solution of the present invention, a cylindrical roller bearing 7 is provided on the inner wall of the top end of the sealing cylinder 301 to support the main shaft 2 and bear the axial load.

[0036] In this embodiment, by providing the cylindrical roller bearing 7 , the cylindrical roller bearing 7 can support the main shaft 2 and bear the axial load when in use, thereby improving the stability of the main shaft 2 .

[0037] As a technical optimization solution of the present utility model, the first spacer 5 and the second spacer 6 are both made of stainless steel, and the first spacer 5 and the second spacer 6 are both used to protect the tapered roller bearing 302 .

[0038] In this embodiment: by setting the first spacer 5 and the second spacer 6 made of stainless steel, the stainless steel has corrosion resistance and wear resistance when used, and the first spacer 5 and the second spacer 6 are soaked in lubricating oil, so the service life of the first spacer 5 and the second spacer 6 can be improved.

[0039] As a technical optimization solution of the utility model, a retaining ring 8 is welded on the inner wall of the bottom end of the sealing cylinder 301. The retaining ring 8 is made of steel and is used to fix the tapered roller bearing 302 and ensure that its position remains unchanged.

[0040] In this embodiment: by setting the retaining ring 8 to be made of steel, steel is a common wear-resistant material when in use, usually used to manufacture bearings and related components. It has high strength and good wear resistance, and can increase the service life of the retaining ring 8.

[0041] As a technical optimization solution of the present invention, an oil seal 9 is welded to the bottom of the pressure cover 304. The material of the oil seal 9 is fluororubber. The oil seal 9 is used to prevent the lubricating oil from leaking out.

[0042] In this embodiment: an oil seal 9 made of fluororubber is provided. When in use, the oil seal 9 is used to prevent leakage of lubricating oil. Fluororubber is an oil-resistant and high-temperature resistant elastic material, which is often used to manufacture the oil seal 9, and can improve the sealing performance, especially under high-temperature and high-pressure working conditions.

[0043] As a technical optimization solution of the present invention, a zinc layer is sprayed on the outer wall of the bolt 305 , and the zinc layer is used to provide anti-corrosion protection for the bolt 305 .

[0044] In this embodiment: by providing a zinc layer, the zinc layer can provide additional corrosion protection for the bolt 305 when in use, which may be beneficial for applications in humid environments or that require resistance to atmospheric corrosion, and can prevent the bolt 305 from rusting when the bolt 305 is removed.

[0045] Working principle: When in use, the lubricating oil is injected into the space formed between the sealing cylinder 301 and the outer wall of the main shaft 2, and the main shaft 2 is connected through the power head housing 1, so that the main shaft 2 is immersed in the lubricating oil inside the power head housing 1 to achieve the effect of lubrication and extend the service life of the main shaft 2, and then the pressure cover 304 is placed on the top of the sealing cylinder 301, and then fixed by the bolts 305 to seal the sealing cylinder 301 and the main shaft 2. At this time, the oil seal 9 can further improve the sealing between the sealing cylinder 301 and the main shaft 2. Compared with the traditional mechanism of adding butter to the main shaft 2, this sealing mechanism 3 can achieve a longer service life of the main shaft 2. When the power head housing 1 and the main shaft 2 are in operation, the cooperation of the reinforcing ribs 402 and the support plate 401 can greatly improve the stability of the sealing cylinder 301 on the top of the power head housing 1, and prevent the sealing cylinder 301 from shaking and causing the lubricating oil inside the sealing cylinder 301 to leak.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power head bearing lubrication mechanism, comprising a power head housing (1) and a main shaft (2), characterized in that: The main shaft (2) is arranged at the top of the power head housing (1); a sealing mechanism (3) for lubricating the main shaft (2) is arranged outside the main shaft (2); and a supporting component (4) for improving the stability of the sealing mechanism (3) is arranged at the top of the power head housing (1); The sealing mechanism (3) comprises a sealing cylinder (301), a tapered roller bearing (302), an extension ring (303), a pressure cover (304) and a bolt (305); the sealing cylinder (301) is welded to the top of the power head housing (1); the tapered roller bearing (302) is arranged on the inner wall of the sealing cylinder (301); the extension ring (303) is welded to the outer wall of the sealing cylinder (301); the pressure cover (304) is clamped on the top of the sealing cylinder (301); the bottom of the bolt (305) extends to the inside of the extension ring (303) and is threadedly connected to the extension ring (303); the number of the tapered roller bearings (302) is several and evenly distributed.

2. A power head bearing lubrication mechanism according to claim 1, characterized in that: The support assembly (4) comprises a support plate (401) and a reinforcing rib (402); the support plate (401) is bolted to the top of the power head housing (1); the reinforcing rib (402) is welded to the top of the support plate (401); and the outer wall of the reinforcing rib (402) is welded to the outer wall of the sealing cylinder (301).

3. The power head bearing lubrication mechanism according to claim 1, characterized in that: A first spacer sleeve (5) is provided on the inner wall of the sealing cylinder (301), and a second spacer sleeve (6) is provided on the outer wall of the main shaft (2); the first spacer sleeve (5) and the second spacer sleeve (6) are located between two adjacent tapered roller bearings (302).

4. The power head bearing lubrication mechanism according to claim 1, characterized in that: A cylindrical roller bearing (7) is provided on the inner wall of the top end of the sealing cylinder (301) for supporting the main shaft (2) and bearing the axial load.

5. The power head bearing lubrication mechanism according to claim 3, characterized in that: The first spacer (5) and the second spacer (6) are both made of stainless steel, and the first spacer (5) and the second spacer (6) are both used to protect the tapered roller bearing (302).

6. The power head bearing lubrication mechanism according to claim 1, characterized in that: A retaining ring (8) is welded on the inner wall of the bottom end of the sealing cylinder (301), the retaining ring (8) being made of steel and being used to fix the tapered roller bearing (302) and ensure that its position remains unchanged.

7. The power head bearing lubrication mechanism according to claim 1, characterized in that: An oil seal (9) is welded to the bottom of the gland (304); the material of the oil seal (9) is fluororubber, and the oil seal (9) is used to prevent the lubricating oil from leaking out.

8. The power head bearing lubrication mechanism according to claim 1, characterized in that: A zinc layer is sprayed on the outer wall of the bolt (305), and the zinc layer is used to provide anti-corrosion protection for the bolt (305).

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