Front-end waterproof mechanism of vertical lathe spindle

Abstract

The utility model discloses a front end waterproof mechanism of a vertical lathe spindle, which belongs to the technical field of vertical lathes and comprises a rotor, a rotor flange ring arranged on the outer side of the upper portion of the rotor, a protective cover movably connected with the outer circle of the rotor flange ring, a sealing ring groove arranged on the outer side of the rotor flange ring, and a sealing ring arranged on the inner side of the protective cover. A front bearing gland is arranged below the sealing ring groove, a front pre-pressing ring is arranged at one end of the front bearing gland, a water jacket is arranged below the protective cover, water, cooling liquid and the like can be prevented from entering the main shaft through a gap through the sealing ring, and first protection is formed; oil, water and the like can be stored in the oil storage tank and discharged along the gap under the action of centrifugal force during rotation to form second protection; the curve labyrinth, the front pre-pressing ring outer circular groove and the front bearing gland inner hole annular groove can store oil, water and the like, the oil and the water are discharged under the action of centrifugal force during rotation, third protection is formed, cooling liquid is prevented from directly falling on the front end of the main shaft in the machining process and entering the main shaft, and the protection effect is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of vertical lathe technology, specifically relating to a waterproof mechanism for the front end of a vertical lathe spindle. Background Technology

[0002] The spindle axis of a vertical lathe is vertically arranged, and its worktable is in a horizontal plane. Compared with a horizontal lathe, the front end of the spindle of a vertical lathe faces upward. During machining, the coolant will fall directly onto the front end of the spindle under the action of gravity, thus entering the spindle and seriously affecting the overall performance of the spindle and the machining accuracy. To address this, we propose a waterproof mechanism for the front end of the vertical lathe spindle. Utility Model Content

[0003] The purpose of this invention is to provide a waterproof mechanism for the front end of a vertical lathe spindle to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof mechanism for the front end of a vertical lathe spindle, comprising a rotor, a rotor flange ring on the outer side of the upper part of the rotor, a protective cover movably connected to the outer circumference of the rotor flange ring, a sealing ring groove on the outer side of the rotor flange ring, a sealing ring on the inner side of the protective cover, the sealing ring fitting into the sealing ring groove, a front bearing cover below the sealing ring groove, a front preload ring at one end of the front bearing cover, a water jacket below the protective cover, a front bearing assembly inside the water jacket, a front bearing nut below the front bearing assembly, and a rear preload ring below the front bearing nut. A rear bearing is located below the pressure ring, and a rear bearing cover is located below the rear bearing. A dust cover is located inside the rear bearing cover, and a sealing cover is located outside the dust cover. An encoder gear is located below the sealing cover, and a rear bearing nut is located below the dust cover. A pulley is located below the rear bearing nut. There is a gap between the outer circle of the rotor flange ring and the inner hole of the front bearing cover. An annular oil reservoir is formed on the outer circle of the rotor flange ring, and an oil drain groove is formed on one side of the oil reservoir. An annular groove is formed between the front bearing cover and the protective cover, and a downwardly inclined oil drain hole is formed in the annular groove. A curved labyrinth structure is designed between the front bearing cover and the front preload ring.

[0005] Preferably, both the protective cover and the water jacket have a conical outer wall.

[0006] Preferably, the protective cover has two screw holes on its outer side, and the protective cover is fixedly connected to the rotor by mounting screws.

[0007] Compared with the prior art, the beneficial effects of this utility model are:

[0008] 1. The sealing ring prevents water and coolant from entering the spindle through gaps, forming the first layer of protection. The oil reservoir stores oil and water, which are discharged through the gaps under centrifugal force during rotation, forming the second layer of protection. The design includes a curved labyrinth, an outer groove of the front preload ring, and an annular groove in the inner hole of the front bearing cap to store oil and water, which are discharged under centrifugal force during rotation, forming the third layer of protection. These three protective structures prevent coolant from falling directly onto the front end of the spindle during machining and entering the spindle, thus affecting the overall performance and machining accuracy of the spindle and greatly improving the protection effect.

[0009] 2. Both the protective cover and the water jacket have conical outer walls, which is more conducive to the flow of liquid outside the main shaft. Attached Figure Description

[0010] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0011] Figure 2 This is a cross-sectional view of the protective cover of this utility model;

[0012] Figure 3 This is a schematic diagram of the internal structure of the protective cover of this utility model;

[0013] Figure 4 This is a schematic cross-sectional view of the rotor structure of this utility model;

[0014] Figure 5 This is a schematic cross-sectional view of the preload ring structure of this utility model;

[0015] Figure 6 This is a schematic diagram of the front bearing cover structure of this utility model;

[0016] Figure 7 This is a cross-sectional view of the connection between the sealing ring and the sealing groove of this utility model.

[0017] In the diagram: 1. Rotor; 2. Rotor flange ring; 3. Protective cover; 4. Sealing ring groove; 5. Sealing ring; 6. Front bearing cover; 7. Front preload ring; 8. Water jacket; 9. Front bearing assembly; 10. Rear preload ring; 11. Front bearing nut; 12. Rear bearing; 13. Rear bearing cover; 14. Dust cover; 15. Sealing cover; 16. Encoder gear; 17. Rear bearing nut; 18. Pulley; 19. Oil reservoir; 20. Annular groove; 21. Oil drain hole; 22. Curved labyrinth structure; 23. Screw hole; 24. Oil drain groove. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-7 This utility model provides a technical solution for a waterproof mechanism at the front end of a vertical lathe spindle: It includes a rotor 1, a rotor flange ring 2 on the outer side of the rotor 1, a protective cover 3 movably connected to the outer circumference of the rotor flange ring 2, a sealing ring groove 4 on the outer side of the rotor flange ring 2, a sealing ring 5 on the inner side of the protective cover 3, the sealing ring 5 fitting with the sealing ring groove 4, a front bearing cover 6 below the sealing ring groove 4, a front preload ring 7 at one end of the front bearing cover 6, a water jacket 8 below the protective cover 3, a front bearing assembly 9 inside the water jacket 8, a front bearing nut 11 below the front bearing assembly 9, a rear preload ring 10 below the front bearing nut 11, and a rear bearing 12 below the rear preload ring 10. Below 12 is a rear bearing cover 13, inside the rear bearing cover 13 is a dust cover 14, outside the dust cover 14 is a sealing cover 15, below the sealing cover 15 is an encoder gear 16, below the dust cover 14 is a rear bearing nut 17, below the rear bearing nut 17 is a pulley 18, there is a gap between the outer circle of the rotor flange ring 2 and the inner hole of the front bearing cover 6, the outer circle of the rotor flange ring 2 is provided with an annular oil reservoir 19, one side of the oil reservoir 19 is provided with an oil drain groove 24, there is an annular groove 20 between the front bearing cover 6 and the protective cover 3, the annular groove 20 is provided with a downwardly inclined oil drain hole 21, and a curved labyrinth structure 22 is designed between the front bearing cover 6 and the front preload ring 7.

[0020] Specifically, both the protective cover 3 and the water jacket 8 have conical outer walls.

[0021] Specifically, the protective cover 3 has two screw holes 23 on its outer side, and the protective cover 3 is fixedly connected to the rotor 1 by mounting screws.

[0022] In this embodiment, during use, the protective cover 3 is locked onto the rotor flange ring 2 by snapping the sealing ring 5 inside the sealing ring groove 4. The sealing ring 5 can prevent water, coolant and other substances from entering the spindle through the gap, forming the first layer of protection. At the same time, both the protective cover 3 and the water jacket 8 have conical outer walls, which is conducive to the flow of liquid outside the spindle.

[0023] There is a gap between the outer circle of the rotor flange ring 2 and the inner hole of the front bearing cover 6. An annular oil reservoir 19 is provided on the outer circle of the rotor flange ring 2. This oil reservoir 19 can store oil, water, etc., and discharges them along the gap under the action of centrifugal force during rotation, forming a second layer of protection. There is an annular groove 20 between the front bearing cover 6 and the protective cover 3. This annular groove 20 can store oil, water, etc., and has a downwardly inclined oil drain hole 21. The oil, water, etc. stored in the annular groove 20 are discharged through the oil drain hole 21.

[0024] The front bearing cap 6 is locked to the front end of the front bearing, pressing the outer ring of the front bearing. The preload ring presses the inner ring of the front bearing. A curved labyrinth structure 22 is designed between the front bearing cap 6 and the preload ring. The outer groove of the front preload ring 7 and the annular groove of the inner hole of the front bearing cap 6 can store oil, water, etc. When rotating, the oil and water are discharged under the action of centrifugal force, forming a third layer of protection.

[0025] The three protective structures prevent coolant from falling directly onto the front end of the spindle during machining and entering the spindle, thus avoiding impact on the overall performance and machining accuracy of the spindle and greatly improving the protection effect.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof mechanism for the front end of a vertical lathe spindle, comprising a rotor (1), characterized in that: A rotor flange ring (2) is provided on the outer side of the rotor (1). A protective cover (3) is movably connected to the outer circle of the rotor flange ring (2). A sealing ring groove (4) is provided on the outer side of the rotor flange ring (2). A sealing ring (5) is provided on the inner side of the protective cover (3). The sealing ring (5) is adapted to the sealing ring groove (4). A front bearing cover (6) is provided below the sealing ring groove (4). A front preload ring (7) is provided at one end of the front bearing cover (6). A water jacket (8) is provided below the protective cover (3). A front bearing assembly (9) is provided inside the water jacket (8). A front bearing nut (11) is provided below the front bearing assembly (9). A rear preload ring (10) is provided below the front bearing nut (11). A rear bearing (12) is provided below the rear preload ring (10). A rear bearing cover (13) is provided below the rear bearing (12). The rear bearing cap (13) is provided with a dust cover (14) on the inner side, and a sealing cover (15) is provided on the outer side of the dust cover (14). An encoder gear (16) is provided below the sealing cover (15). A rear bearing nut (17) is provided below the dust cover (14). A pulley (18) is provided below the rear bearing nut (17). There is a gap between the outer circle of the rotor flange ring (2) and the inner hole of the front bearing cap (6). An annular oil storage groove (19) is provided on the outer circle of the rotor flange ring (2). An oil drain groove (24) is provided on one side of the oil storage groove (19). An annular groove (20) is provided between the front bearing cap (6) and the protective cover (3). An downwardly inclined oil drain hole (21) is provided in the annular groove (20). A curved labyrinth structure (22) is designed between the front bearing cap (6) and the front preload ring (7).

2. The waterproof mechanism for the front end of a vertical lathe spindle according to claim 1, characterized in that: Both the protective cover (3) and the water jacket (8) are provided with conical outer walls.

3. The waterproof mechanism for the front end of a vertical lathe spindle according to claim 1, characterized in that: The protective cover (3) has two screw holes (23) on its outer side, and the protective cover (3) is fixedly connected to the rotor (1) by mounting screws.

Images