CN217223626U - Main shaft convenient to maintain - Google Patents

Abstract

The utility model relates to a main shaft convenient for maintenance in the technical field of main shaft, which comprises a main body, wherein the inner wall of the main body is rotatably connected with a rotating shaft, the rotating shaft comprises a shaft body, the inner wall of the shaft body is provided with a plurality of liquid inlet grooves, the center of the inner wall of the shaft body is provided with an inner groove communicated with the liquid inlet grooves, the inner wall of the inner groove is provided with a tapered groove, the inner wall of the tapered groove is communicated with a connecting groove, the inner wall of the connecting groove is communicated with a plurality of liquid outlet grooves, one side of the main body is provided with an end cover, cooling liquid is filled in the main body, when the rotating shaft rotates, the cooling liquid absorbs heat for cooling the shaft body, and the cooling liquid is filled in the inner groove along the liquid inlet grooves and then is filled in the connecting groove from the tapered groove and then is discharged into the end cover from the liquid outlet grooves, so that the cooling liquid can take heat out and finally is pumped back by a circulating pump to form a closed loop structure, since the area of the cooling liquid contacting the shaft body is large, a strong cooling effect can be obtained.

Description

An easy-to-maintain spindle

technical field

The utility model relates to the technical field of spindles, in particular to a spindle that is easy to maintain.

Background technique

High-speed CNC machine tools are one of the technical foundations and development directions of the equipment manufacturing industry, and their performance first depends on the performance of the machine tool spindle. The electric spindle is a new technology that integrates the machine tool spindle and the spindle motor in the field of CNC machine tools in recent years. It uses the mover of the motor directly as the spindle of the machine tool. components, thus realizing the integration of the motor and the machine tool spindle.

Patent CN215966342U describes a built-in motorized spindle that is easy to disassemble and maintain. The rotation of the main shaft of the motorized spindle body can drive the fan blades to rotate, so that the external air can dissipate heat inside the casing after passing through the filter cover under the action of the fan blades. The heat dissipation effect of the main body of the electric spindle is good, but the heat dissipation through the airflow will be affected by the temperature of the outside air. If the outside air temperature is high, the heat dissipation effect will be reduced. When the outside air temperature is low, the heat dissipation effect will be improved, so it will be unstable.

Utility model content

In view of the above problems, the present invention provides a main shaft that is easy to maintain and has the advantages of good heat dissipation effect.

The technical scheme of the present utility model is:

A main shaft for easy maintenance includes a main body, the inner wall of the main body is rotatably connected with a rotating shaft, the rotating shaft includes a shaft body, the inner wall of the shaft body is provided with a plurality of liquid inlet grooves, and the center of the inner wall of the shaft body is provided with The inner groove communicated with the liquid inlet groove, the inner wall of the inner groove is provided with a conical groove, the inner wall of the conical groove is communicated with a connecting groove, the inner wall of the connecting groove is communicated with a plurality of liquid outlet grooves, the main body An end cover is arranged on one side of the end cover, the inner wall of the end cover is connected with the connecting pipe, the outer wall of the main body is fixedly connected with a circulating pump, and the inner wall of the circulating pump is communicated with the connecting pipe.

The working principle of the above technical solution is as follows:

The inside of the main body will be filled with cooling liquid. When the rotating shaft rotates, the cooling liquid will absorb heat and cool the shaft body, and the cooling liquid will be poured into the inner groove along the liquid inlet groove, and then poured into the connecting groove from the conical groove. In the tank, then it is discharged into the end cover from the liquid outlet tank, so that the cooling liquid will take out the heat, and finally pumped back by the circulating pump to form a closed-loop structure. Has a strong cooling effect.

In a further technical solution, the inner wall of the end cap is provided with a plurality of fixing screws for fixing and connecting the main body, the main body includes a sleeve, and the outer wall of the sleeve is fixedly connected with a plurality of first connecting ears, so The end cover includes a cover body, and the outer wall of the cover body is fixedly connected with a plurality of second connection ears.

The end cover and the main body are connected through the second connecting ear and the first connecting ear, so that the two can be separated, so that the rotating shaft can be easily taken out, so that the maintenance of the rotating shaft can be facilitated.

In a further technical solution, a first bearing is fixedly connected to the inner wall of the sleeve, a second bearing is fixedly connected to the inner wall of the cover body, and a liquid tank is opened on the inner wall of the cover body.

After the main body and the end cover are combined, the first bearing and the second bearing will become the rotating support of the rotating shaft, which will provide constraints for the rotating shaft, and there will be a liquid silo inside the cover as a transfer station for the cooling liquid, so that the cooling liquid has the ability to dissipate heat. time.

In a further technical solution, symmetrical connecting pieces are fixedly connected on both sides of the shaft body, and the two connecting pieces are respectively clamped with the first bearing and the second bearing.

The connecting piece is in the shape of a prism, and the central grooves of the first bearing and the second bearing are consistent, so that they can be snap-connected to each other and prevent the two from slipping each other.

In a further technical solution, an output end is fixedly connected to one end of the shaft body.

The shaft will transmit the rotational force to the target object through the output end.

In a further technical solution, the other end of the shaft body is fixedly connected with a connecting end.

The connecting end is used to connect a power mechanism such as a motor, so that the rotation of the rotating shaft can be realized.

The beneficial effects of the present utility model are:

1. The inside of the main body will be filled with cooling liquid. When the rotating shaft rotates, the cooling liquid will absorb heat and cool the shaft body, and the cooling liquid will be poured into the inner tank along the liquid inlet groove, and then poured from the conical groove. Enter the connecting tank, and then discharge it into the end cover from the liquid outlet tank, so that the cooling liquid will bring out the heat, and there will be a liquid silo inside the cover as a transfer station for the cooling liquid, so that the cooling liquid has time to dissipate heat. Finally, it is pumped back by the circulating pump to form a closed-loop structure. Since the area where the coolant contacts the shaft body is large, it will have a strong cooling effect;

2. The end cover and the main body are connected by the second connecting ear and the first connecting ear, so that the two can be separated, so as to facilitate the removal of the rotating shaft, then the maintenance of the rotating shaft can be facilitated. After the main body and the end cover are combined, The first bearing and the second bearing will become the rotating bracket of the rotating shaft, which will provide constraints for the rotating shaft. slip.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the main body of the embodiment of the present invention;

Fig. 2 is the structural representation of the rotating shaft of the embodiment of the present invention;

3 is a schematic structural diagram of a transverse cross-sectional view of a rotating shaft according to an embodiment of the present invention;

Fig. 4 is the structural schematic diagram of the longitudinal section of the rotating shaft according to the embodiment of the present invention;

5 is a schematic structural diagram of an end cap according to an embodiment of the present invention;

6 is a schematic structural diagram of a sleeve according to an embodiment of the present invention.

Description of reference numbers:

1. Main body; 2. Shaft; 3. End cover; 4. Circulating pump; 5. Connecting pipe; 6. Fixing screw; 100. Sleeve; 101. First bearing; 102. First connecting ear; 200, Shaft body ;201, liquid inlet tank; 202, inner tank; 203, conical tank; 204, connecting tank; 205, liquid outlet tank; 206, connecting piece; 207, output end; 208, connecting end; 300, cover body; 301 , the second bearing; 302, the liquid tank; 303, the second connecting ear.

Detailed ways

The embodiments of the present utility model will be further described below with reference to the accompanying drawings.

Example:

As shown in FIG. 1-FIG. 6, a main shaft for easy maintenance includes a main body 1, the inner wall of the main body 1 is rotatably connected with a rotating shaft 2, the rotating shaft 2 includes a shaft body 200, and the inner wall of the shaft body 200 is provided with a plurality of liquid inlet grooves 201 , the center of the inner wall of the shaft body 200 is provided with an inner groove 202 communicating with the liquid inlet groove 201, the inner wall of the inner groove 202 is provided with a conical groove 203, the inner wall of the conical groove 203 is communicated with a connecting groove 204, and the inner wall of the connecting groove 204 is communicated with There are a plurality of liquid outlet grooves 205, one side of the main body 1 is provided with an end cover 3, the inner wall of the end cover 3 is connected to the connecting pipe 5, the outer wall of the main body 1 is fixedly connected with a circulating pump 4, and the inner wall of the circulating pump 4 is connected with the connecting pipe 5 is connected.

The working principle of the above technical solution is as follows:

The inside of the main body 1 will be filled with cooling liquid. When the rotating shaft 2 rotates, the cooling liquid will endothermic cooling of the shaft body 200, and the cooling liquid will be poured into the inner groove 202 along the liquid inlet groove 201, and then flow from the cone to the inner groove 202. The tank 203 is poured into the connecting tank 204, and then discharged into the end cover 3 from the liquid outlet tank 205, so that the cooling liquid will take out the heat, and finally pumped back by the circulating pump 4 to form a closed-loop structure. The area of the liquid contacting the shaft body 200 is large, so there will be a strong cooling effect.

In another embodiment, as shown in FIGS. 5-6 , the inner wall of the end cover 3 is provided with a plurality of fixing screws 6 for fixing and connecting the main body 1. The main body 1 includes a sleeve 100, and the outer wall of the sleeve 100 is fixedly connected There are a plurality of first connection ears 102 , the end cap 3 includes a cover body 300 , and a plurality of second connection ears 303 are fixedly connected to the outer wall of the cover body 300 .

The end cover 3 is connected with the main body 1 through the second connecting lug 303 and the first connecting lug 102, so that the two can be separated, so that the shaft 2 can be easily taken out, and the maintenance of the rotating shaft 2 can be facilitated.

In another embodiment, as shown in FIG. 6 , the inner wall of the sleeve 100 is fixedly connected with the first bearing 101 , the inner wall of the cover body 300 is fixedly connected with the second bearing 301 , and the inner wall of the cover body 300 is provided with a liquid chamber 302 .

After the main body 1 and the end cover 3 are combined, the first bearing 101 and the second bearing 301 will become the rotating brackets of the rotating shaft 2, which will provide constraints for the rotating shaft 2, and there will be a liquid tank 302 inside the cover body 300 as a cooling liquid. The transfer station allows the coolant to have time to dissipate heat.

In another embodiment, as shown in FIG. 5 , two sides of the shaft body 200 are fixedly connected with symmetrical connecting pieces 206 , and the two connecting pieces 206 are respectively clamped with the first bearing 101 and the second bearing 301 .

The connecting piece 206 is in the shape of a prism, and the central grooves of the first bearing 101 and the second bearing 301 are the same, so that they can be snapped together to prevent them from slipping.

In another embodiment, as shown in FIG. 2 , one end of the shaft body 200 is fixedly connected with the output end 207 .

The shaft body 200 transmits the rotational force to the target object through the output end 207 .

In another embodiment, as shown in FIG. 2 , the other end of the shaft body 200 is fixedly connected with a connecting end 208 .

The connection end 208 is used to connect a power mechanism such as a motor, so that the rotation of the rotating shaft 2 can be realized.

The above embodiments only represent specific embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims (6)

1. A main shaft convenient for maintenance, comprising a main body (1), characterized in that: the inner wall of main part (1) rotates and is connected with pivot (2), pivot (2) include axis body (200), a plurality of income cistern (201) have been seted up to the inner wall of axis body (200), inside groove (202) with going into cistern (201) intercommunication are seted up at the inner wall center of axis body (200), tapered groove (203) have been seted up to the inner wall of inside groove (202), the inner wall intercommunication of tapered groove (203) has even groove (204), the inner wall intercommunication of even groove (204) has a plurality of liquid grooves (205), one side of main part (1) is provided with end cover (3), the inner wall intercommunication connecting pipe (5) of end cover (3), the outer wall fixedly connected with circulating pump machine (4) of main part (1), the inner wall and the connecting pipe (5) of circulating pump machine (4) are linked together.

2. A main shaft for facilitating maintenance according to claim 1, wherein: the inner wall of end cover (3) is provided with a plurality of set screws (6) that are used for fixed connection main part (1), main part (1) is including sleeve (100), a plurality of first engaging lug of outer wall fixedly connected with (102) of sleeve (100), end cover (3) is including lid (300), a plurality of second engaging lug of outer wall fixedly connected with (303) of lid (300).

3. A main shaft for facilitating maintenance according to claim 2, wherein: the inner wall fixedly connected with first bearing (101) of sleeve (100), the inner wall fixedly connected with second bearing (301) of lid (300), liquid storehouse (302) have been seted up to the inner wall of lid (300).

4. A main shaft for facilitating maintenance according to claim 1, wherein: two sides of the shaft body (200) are fixedly connected with symmetrical connecting pieces (206), and the two connecting pieces (206) are respectively clamped with the first bearing (101) and the second bearing (301).

5. A main shaft for facilitating maintenance according to claim 1, wherein: one end of the shaft body (200) is fixedly connected with an output end (207).

6. A main shaft for facilitating maintenance according to claim 1, wherein: the other end of the shaft body (200) is fixedly connected with a connecting end (208).

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