CN211163146U

CN211163146U - Double-water-cooling device for electric spindle

Info

Publication number: CN211163146U
Application number: CN201921904764.8U
Authority: CN
Inventors: 张元�; 李贺
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-08-04
Anticipated expiration: 2029-11-07

Abstract

The utility model relates to a two water chilling plant of electricity main shaft belongs to mechanical equipment cooling field, and the high-speed electricity main shaft cooling of being applied to very much, the combined design of cutter pull rod and axle core can let the cooling water from the inside four cooling holes that enter into the axle core of cutter pull rod to the cooling book can be from axle core rear end circulation to axle core front end, not only cools off axle core motor stator part, but also can cool off the front and back bearing. Simultaneously cooling water flows out and then cools off and clear up the tool bit from the front end taper hole behind axle core rear end leads to the front end, and the effect of cooling and washing tool bit is compromise simultaneously in this design, and economy is convenient again, and the axle core inserts same industry water-cooling machine with main shaft housing together in addition, has realized the dual cooling of axle core with motor stator.

Description

Double-water-cooling device for electric spindle

Technical Field

The utility model relates to an electricity main shaft two water cooling plant belongs to mechanical equipment cooling field, is applied to high-speed electricity main shaft cooling very much.

Background

The appearance of a high-speed electric spindle enables high-speed processing to step towards a new step, and a stator and a rotor of the motor are directly connected with the spindle, so that a transmission structure of a traditional motor is omitted. The high-speed motorized spindle has the advantages of compact structure, light weight, high precision and the like.

However, the compact connection and the high rotation speed of the structure bring some problems. When the high-speed electric spindle rotates at a high speed and the motor runs, a large amount of heat is generated, and the dynamic performance of the electric spindle is poor and the processing precision is affected because the heat cannot be dissipated in time in a narrow space. The existing high-speed electric spindle radiating mode is only to introduce cooling water to a spindle shell for cooling, and has poor cooling effect and single method.

Disclosure of Invention

To the above problem, the utility model provides an electricity main shaft two water-cooling devices, the utility model is used for solve the problem explained in the background art.

The utility model provides a two water chilling plant of electricity main shaft, it contains main shaft shell, motor stator, electric motor rotor, axle core, cutter pull rod, pull rod spacing ring, pull rod support ring, pull rod sealing washer, high-speed rotary joint, its characterized in that: the spindle housing with motor stator hot-packing connect, motor stator with motor rotor connect, motor rotor with axle core hot-packing connect, the cutter pull rod with the pull rod spacing ring cooperation install the axle core inside, the cutter pull rod with the cooperation of pull rod support ring install the axle core inside, the pull rod sealing washer with the cutter pull rod connect, high-speed rotary joint with cutter pull rod threaded connection.

Preferably, the spindle housing is externally provided with regularly arranged cooling water tanks, and the cooling water tanks can introduce cooling water from the front end to the rear end of the spindle housing to achieve a water cooling effect.

Preferably, the shaft core structure requires that four cooling water holes and a shaft core ring groove are formed in the tail part of the shaft core structure, and the four cooling holes can be communicated with the front end of the shaft core.

Preferably, the high-speed rotary joint is in threaded connection with the cutter pull rod, cooling water enters the cutter pull rod through the high-speed rotary joint and enters the four cooling holes through the four through holes of the cutter pull rod and the shaft core annular groove to reach the front end of the shaft core for cooling, and the cooled cooling water can flow out through the conical hole at the front end of the shaft core to cool the cutter head and clean the cutter head.

Preferably, the shaft core and the main shaft shell are connected into the same industrial water cooling machine together, and double cooling of the shaft core and the motor stator is achieved.

The utility model has the advantages that: 1. the cooling water tank of the spindle shell can reduce the dead weight of the shell, and cooling water is introduced to cool the motor stator.

2. The combined design of cutter pull rod and axle core can let the cooling water enter into the four cooling holes of axle core from the cutter pull rod is inside to the cooling book can circulate to the axle core front end from the axle core rear end, not only cools off axle core motor stator part, but also can cool off front and back bearing.

3. The spindle shell and the spindle core are simultaneously introduced with cooling water to cool the stator and the spindle core, and an industrial water cooling machine is introduced with water to form internal and external cooling, so that the dual cooling effect is achieved.

4. When cooling water from axle core rear end lead to behind the front end from the front end taper hole outflow and then cool off and clear up the tool bit, this design compromises the effect of cooling and washing tool bit simultaneously, economy is convenient again.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

FIG. 1: high-speed electric spindle double cooling device cross-sectional view

FIG. 2 is a drawing: axial view of motor stator

FIG. 3: axial view of motor rotor

FIG. 4 is a drawing: cross section view of shaft core

FIG. 5: cutter pull rod section view

FIG. 6: shaft side view of pull rod limiting ring

FIG. 7: axial view of a brace support ring

FIG. 8: shaft side view of pull rod sealing ring

FIG. 9: high speed rotary joint schematic

FIG. 10: schematic view of shaft core

FIG. 11: drawing of tool pull rod

FIG. 12: schematic view of spindle housing

In the figure: the tool comprises a main shaft shell 1, a motor stator 2, a motor rotor 3, a shaft core 4, a tool pull rod 5, a pull rod limiting ring 6, a pull rod supporting ring 7, a cooling water tank 8, a pull rod sealing ring 9 and a high-speed rotary joint 10.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings.

The utility model provides a two water chilling plant of electricity main shaft, it contains main shaft housing 1, motor stator 2, electric motor rotor 3, axle core 4, cutter pull rod 5, pull rod spacing ring 6, pull rod support ring 7, cooling trough 8, pull rod sealing washer 9, high-speed rotary joint 10, its characterized in that: spindle housing 1 is connected with motor stator 2 hot charge, and motor stator 2 is connected with motor rotor 3, and motor rotor 3 is connected with axle core 4 hot charge, and cutter pull rod 5 is installed inside axle core 4 with the cooperation of pull rod spacing ring 6, and cutter pull rod 5 is installed inside axle core 4 with the cooperation of pull rod support ring 7, and pull rod sealing washer 9 is connected with cutter pull rod 4, high-speed rotary joint 10 and cutter pull rod 5 threaded connection.

Furthermore, the outer part of the spindle housing 1 is provided with regularly arranged cooling water channels 8, and the cooling water channels 8 can be filled with cooling water from the front end to the rear end of the spindle housing 1 to achieve the water cooling effect.

Furthermore, the structural requirement of the shaft core 4 is to meet the requirement that the tail part is provided with four cooling water holes and a shaft core ring groove, and the four cooling holes can be communicated with the front end of the shaft core 4.

Further, high-speed rotary joint 10 and cutter pull rod 5 threaded connection, during cooling water enters into cutter pull rod 5 through high-speed rotary joint 10 to get into four cooling holes through four through-holes and the axle core annular of cutter pull rod 5 and lead to 4 front ends of axle core and cool off, the cooling water after the cooling can flow out through 4 front end taper holes of axle core and cool off and can the cleaning tool bit the tool bit simultaneously.

Furthermore, the shaft core 4 and the spindle shell 1 are connected into the same industrial water cooling machine together, and double cooling of the shaft core 4 and the motor stator 2 is achieved.

The utility model discloses embodiment's theory of operation does: the cooling water is introduced into the cutter pull rod 9 from the high-speed rotary joint 10, then flows to the cutter head and the shaft core annular groove respectively through the through hole in the cutter pull rod 9, enters into the four cooling holes of the shaft core 4 through the shaft core annular groove, cools the shaft core 4 and finally flows out of the conical hole at the front end of the shaft core 4 to cool and clean the cutter head.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a two water chilling plant of electricity main shaft, it contains main shaft shell (1), motor stator (2), electric motor rotor (3), axle core (4), cutter pull rod (5), pull rod spacing ring (6), pull rod support ring (7), cooling trough (8), pull rod sealing washer (9), high-speed rotary joint (10), its characterized in that: spindle housing (1) with motor stator (2) hot dress connect, motor stator (2) with motor rotor (3) connect, motor rotor (3) with axle core (4) hot dress connect, cutter pull rod (5) with pull rod spacing ring (6) cooperation install axle core (4) inside, cutter pull rod (5) with pull rod support ring (7) cooperation install axle core (4) inside, pull rod sealing washer (9) with cutter pull rod (5) connect, high-speed rotary joint (10) with cutter pull rod (5) threaded connection.

2. The electric spindle double-water cooling device according to claim 1, characterized in that: the spindle housing is externally provided with regularly arranged cooling water tanks (8), and the cooling water tanks (8) can be filled with cooling water from the front end to the rear end of the spindle housing to achieve the water cooling effect.

3. The electric spindle double-water cooling device according to claim 1, characterized in that: the shaft core structure requires that four cooling holes and a shaft core ring groove are formed in the tail part of the shaft core structure, and the four cooling holes can be communicated with the front end of the shaft core.

4. The electric spindle double-water cooling device according to claim 1, characterized in that: high-speed rotary joint with cutter pull rod threaded connection, during cooling water got into the cutter pull rod through high-speed rotary joint to four through-holes and the axle core annular that get into four cooling holes through the cutter pull rod cooled off to axle core front end, cooling water after the cooling can flow out through axle core front end taper hole simultaneously and cool off and can the cleaning tool bit the tool bit.

5. The electric spindle double-water cooling device according to claim 2, characterized in that: the shaft core and the main shaft shell are connected into the same industrial water cooling machine together, and double cooling of the shaft core and the motor stator is achieved.