CN210877581U - Machine tool main motor speed reducer - Google Patents
Machine tool main motor speed reducer Download PDFInfo
- Publication number
- CN210877581U CN210877581U CN201921255154.XU CN201921255154U CN210877581U CN 210877581 U CN210877581 U CN 210877581U CN 201921255154 U CN201921255154 U CN 201921255154U CN 210877581 U CN210877581 U CN 210877581U
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- Prior art keywords
- main shaft
- end cover
- box
- groove
- gland
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Abstract
The utility model discloses a lathe main motor decelerator, including box, end cover and main shaft, the main shaft rotates the inner wall of connection at the box, end cover fixed mounting is at the top of box, the inner wall fixed mounting of box has rotary seal device, the main shaft passes the inside of end cover, recess one has been seted up to the bottom of end cover, the inside joint of recess one has sealing washer one to contact with rotary seal device's top, the butt has spring one between the top of sealing washer one and the top of recess one, the draw-in groove has been seted up on the surface that is close to the end cover top on the main shaft, the inside joint of draw-in groove has sealing washer three to contact with the surface of main shaft. The utility model discloses an above-mentioned isotructure's cooperation possesses sealed effectual advantage, has solved the problem that current reduction gear is sealed effectual.
Description
Technical Field
The utility model relates to a reduction gear seals technical field, specifically is lathe main motor decelerator.
Background
The speed reducer is a power transmission mechanism that converts the speed of a gear to reduce the number of revolutions of a motor to a required number of revolutions and obtain a large torque.
The output shaft of the existing speed reducer is assembled in the mounting hole through a bearing, and meanwhile, lubricating oil is used in a plurality of gears in a meshed mode, so that the output end and the input end of the speed reducer need to be sealed, and the lubricating oil is prevented from being leaked.
However, the existing sealing structure has poor sealing effect, which is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lathe main motor decelerator possesses sealed effectual advantage, has solved the problem that current reduction gear seal effect is not good.
In order to achieve the above object, the utility model provides a following technical scheme: lathe owner motor decelerator, including box, end cover and main shaft, the main shaft rotates the inner wall of connection at the box, end cover fixed mounting is at the top of box, the inner wall fixed mounting of box has rotary seal device, the main shaft passes the inside of end cover, the bottom of end cover is seted up groove one, the inside joint of groove one has sealing washer one to contact with rotary seal device's top, the butt has spring one between the top of sealing washer one and the top of groove one, the draw-in groove has been seted up on the surface that is close to the end cover top on the main shaft, the inside joint of draw-in groove has sealing washer three to contact with the surface of main shaft.
Preferably, the rotary sealing device comprises a gland, the gland is sleeved on the surface of the main shaft, the gland is in threaded connection with the inner wall of the box body and is in contact with the first sealing ring, a second groove is formed in the bottom of the gland, the second sealing ring is inserted into the second groove, a second spring is abutted between the top of the second sealing ring and the top of the second groove, and a limiting ring is fixedly connected to the surface of the main shaft, close to the bottom of the main shaft, and is in contact with the bottom of the second sealing ring.
Preferably, the end cover is fixedly mounted with the box body through a fastening bolt.
Preferably, the distance between the end cover and the main shaft is 0.25-0.35 mm.
Preferably, the distance between the gland and the main shaft is 0.25-0.35 mm.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a setting: the box, end cover, main shaft, rotary sealing device, recess one, sealing washer one, spring one, draw-in groove, sealing washer three, gland, recess two, sealing washer two, spring two, spacing ring, fastening bolt need carry out multiple sealing to reduction gear output and input, prevent that lubricating oil from revealing.
Drawings
FIG. 1 is a schematic view of the front view of the partial cross-section structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic view of the top view structure of the present invention.
In the figure: the sealing device comprises a box body 1, an end cover 2, a main shaft 3, a rotary sealing device 4, a groove I5, a sealing ring I6, a spring I7, a clamping groove 8, a sealing ring III 9, a gland 10, a groove II 11, a sealing ring II 12, a spring II 13, a limiting ring 14 and a fastening bolt 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a main motor speed reducer of a machine tool comprises a box body 1, an end cover 2 and a main shaft 3, wherein the main shaft 3 of the box body 1 is rotatably connected to the inner wall of the box body 1, the end cover 2 is fixedly installed at the top of the box body 1, a rotary sealing device 4 is fixedly installed on the inner wall of the box body 1 and used for sealing when the main shaft 3 rotates, the main shaft 3 penetrates through the inner part of the end cover 2, a first groove 5 is formed in the bottom of the end cover 2 and used for clamping a first sealing ring 6, a first sealing ring 6 is clamped inside the first groove 5 and is contacted with the top of the rotary sealing device 4, a first spring 7 is abutted between the top of the first sealing ring 6 and the top of the first groove 5, a clamping groove 8 is formed in the surface, close to the top of the end cover 2, a third sealing ring 9 is clamped inside the clamping groove 8 and is contacted with the surface of the main shaft 3, the end cover 2 is, and a third sealing ring 9 in the clamping groove 8 on the surface of the main shaft 3 is in close contact with the gland 10 to seal the gland, so that lubricating oil is prevented from leaking.
Specifically, rotary seal device 4 includes gland 10, gland 10 cup joints the surface at main shaft 3, gland 10 threaded connection is at the inner wall of box 1, and contact with sealing washer 6, two 11 recess have been seted up to gland 10's bottom, two 11 inside pegs graft of recess have two 12 sealing washers, the butt has two 13 springs between two 12 tops of sealing washer and two 11 recesses, be close to the fixed surface of its bottom on main shaft 3 and be connected with spacing ring 14, and contact with two 12 bottoms of sealing washer, carry out threaded connection with gland 10 and box 1 inner wall, it seals to drive two 13 springs and two 12 sealing washers and contact with spacing ring 14 when gland 10 moves down, prevent that lubricating oil from revealing.
Furthermore, the end cover 2 is fixedly installed with the box body 1 through the fastening bolt 15, so that the end cover 2 is installed more tightly and firmly.
Furthermore, the distance between the end cover 2 and the main shaft 3 is 0.25-0.35mm, so that the friction generated when the main shaft 3 rotates is reduced.
Furthermore, the distance between the gland 10 and the main shaft 3 is 0.25-0.35mm, so that the friction when the main shaft 3 rotates is reduced.
The working principle is as follows: when this lathe main motor decelerator uses, carry out threaded connection with gland 10 and 1 inner wall of box, gland 10 drives spring two 13 and sealing washer two 12 and spacing ring 14 and contacts when moving down and seal, through fastening bolt 15 with end cover 2 fixed mounting at the top of box 1, one 7 extrusion sealing washer 6 of spring of 5 insides of recess and 10 in close contact with of gland, 3 surperficial draw-in grooves 8 inside sealing washer three 9 of main shaft and gland 10 in close contact with, through triple seal, prevent that lubricating oil from revealing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Lathe owner motor decelerator, including box (1), end cover (2) and main shaft (3), main shaft (3) rotate to be connected at the inner wall of box (1), end cover fixed mounting is at the top of box (1), its characterized in that: the inner wall fixed mounting of box (1) has rotary seal device (4), main shaft (3) pass the inside of end cover (2), the bottom of end cover (2) is seted up fluted one (5), the inside joint of flute one (5) has sealing washer one (6) to contact with the top of rotary seal device (4), the butt has spring one (7) between the top of sealing washer one (6) and the top of flute one (5), draw-in groove (8) have been seted up on main shaft (3) near the surface at end cover top, the inside joint of draw-in groove (8) has sealing washer three (9) to contact with the surface of main shaft (3).
2. The machine tool main motor reduction gear according to claim 1, characterized in that: the rotary sealing device (4) comprises a gland (10), the gland (10) is sleeved on the surface of the main shaft (3), the gland (10) is in threaded connection with the inner wall of the box body (1) and is in contact with the first sealing ring (6), the bottom of the gland (10) is provided with the second groove (11), the second sealing ring (12) is inserted into the second groove (11), a second spring (13) is abutted between the top of the second sealing ring (12) and the top of the second groove (11), and the main shaft (3) is close to the surface of the bottom of the main shaft and fixedly connected with a limiting ring (14) and is in contact with the bottom of the second sealing ring (12).
3. The machine tool main motor reduction gear according to claim 1, characterized in that: the end cover is fixedly installed with the top of the box body (1) through a fastening bolt (15).
4. The machine tool main motor reduction gear according to claim 1, characterized in that: the distance between the end cover and the main shaft (3) is 0.25-0.35 mm.
5. The machine tool main motor reduction gear according to claim 2, characterized in that: the distance between the gland (10) and the main shaft (3) is 0.25-0.35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255154.XU CN210877581U (en) | 2019-08-05 | 2019-08-05 | Machine tool main motor speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255154.XU CN210877581U (en) | 2019-08-05 | 2019-08-05 | Machine tool main motor speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210877581U true CN210877581U (en) | 2020-06-30 |
Family
ID=71333583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921255154.XU Active CN210877581U (en) | 2019-08-05 | 2019-08-05 | Machine tool main motor speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210877581U (en) |
-
2019
- 2019-08-05 CN CN201921255154.XU patent/CN210877581U/en active Active
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