CN208357813U

CN208357813U - A kind of asynchronous head of a bed of monoblock type

Info

Publication number: CN208357813U
Application number: CN201820777626.7U
Authority: CN
Inventors: 陈帮勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-23
Filing date: 2018-05-23
Publication date: 2019-01-11
Anticipated expiration: 2028-05-23

Abstract

The utility model discloses a kind of asynchronous head of a bed of monoblock type, it is intended to provide a kind of compact-sized, the asynchronous head of a bed of the monoblock type of high transmission accuracy, its key points of the technical solution are that the kind asynchronous head of a bed of monoblock type, including main shaft, the rotor being placed on outside main shaft, the stator being placed on outside rotor and the main shaft being placed on outside stator, it is characterized by: the both ends of the main shaft further respectively have drive end bearing bracket and rear end cap, bearing chamber is equipped on drive end bearing bracket and rear end cap, if being equipped with the dry bearing being placed on main shaft in bearing chamber, drive end bearing bracket is equipped with the preceding gland for fixing bearing, rear end cap is equipped with for the bearing spacer of preloaded bearing and the dustproof cover for sealing bearing, the encoder being placed on the outside of dustproof cover and braking system are also cased on main shaft, braking system includes the brake disc being placed on main shaft and the braking clamp for controlling brake disc braking, outside main shaft Side is additionally provided with radiator, and the utility model is suitable for machine tool component technical field.

Description

A kind of asynchronous head of a bed of monoblock type

Technical field

The utility model relates to a kind of machine tool component technical fields, more specifically, it relates to a kind of asynchronous bed of monoblock type Head.

Background technique

Currently, center lathe main axle structure usually passes through gear or belt wheel transmission, lead to that transmission chain is too long, outer dimension Greatly, the problems such as transmitting torque is small affects the transmission accuracy and positioning accuracy of lathe spindle, and when needs stopping processing, main shaft It cannot stop operating immediately, controlling is poor, additionally due to the high-speed rotation of motor can generate amount of heat, thermal diffusivity is also especially It is important.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of compact-sized, transmission accuracies The asynchronous head of a bed of high monoblock type.

To achieve the above object, the utility model provides following technical solution: a kind of asynchronous head of a bed of monoblock type, including master Axis, the rotor being placed on outside main shaft, the stator being placed on outside rotor and the main shaft being placed on outside stator, it is characterised in that: the main shaft The both ends of body further respectively have drive end bearing bracket and rear end cap, and bearing chamber is equipped on drive end bearing bracket and rear end cap, is equipped with set in bearing chamber If drive end bearing bracket is equipped with the preceding gland for fixing bearing in the dry bearing on main shaft, rear end cap, which is equipped with, is used for preloaded bearing Bearing spacer and dustproof cover for sealing bearing, be also cased with the encoder and braking system being placed on the outside of dustproof cover on main shaft System, braking system include the brake disc being placed on main shaft and the braking clamp for controlling brake disc braking, and the outside of main shaft is also Equipped with radiator.

The utility model is further arranged to: is arranged on the main shaft there are two contracting set, two contracting sets are respectively placed in rotor Both ends, the locking nut for fixed contracting set is additionally provided on main shaft, is equipped with rotor spacer between locking nut and contracting set.

The utility model is further arranged to: the radiator includes the outer casing covered on the outside of main shaft, outer casing Bottom be equipped with ventilation hole, the top of outer casing is equipped with thermovent, is equipped with fan in thermovent, if the outer wall of main shaft is equipped with Dry cooling fin forms radiating flow passage between two abutting fins, is connected between ventilation hole and thermovent by radiating flow passage.

The utility model is further arranged to: capillary groove is equipped between the outside and main shaft of the preceding gland.

The utility model is further arranged to: the bottom of the main shaft is equipped with fixing seat, sets on four angles of fixing seat There is fixation hole.

By using above-mentioned technical proposal, have compact-sized, transmission efficiency is high, low noise, stable accuracy, good heat dissipation, Consume energy low feature.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Fig. 2 is the schematic cross-sectional view of the utility model embodiment.

Fig. 3 is that the utility model embodiment removes the structural schematic diagram after outer casing.

Appended drawing reference is in figure, 1- main shaft, 2- rotor, 3- stator, 4- main shaft, 5- drive end bearing bracket, 6- rear end cap, presses before 8- Lid, 9- bearing spacer, 10- dustproof cover, 11- encoder, 12- brake disc, 13- caliper, 14- contracting set, 15- locking nut, 16- Rotor spacer, 17- outer casing, 18- ventilation hole, 19- thermovent, 20- fan, 21- cooling fin, 22- radiating flow passage, 24- waterproof Slot, 25- fixing seat, 26- fixation hole, 27- slot, 28- fixture nut.

Specific embodiment

It is described further referring to figs. 1 to a kind of 3 pairs of asynchronous head of a bed embodiments of monoblock type of the utility model.

A kind of asynchronous head of a bed of monoblock type, including main shaft 1, the rotor being placed on outside main shaft 12,3 and of stator being placed on outside rotor 2 The main shaft 4 being placed on outside stator 3, it is characterised in that: the both ends of the main shaft 4 further respectively have drive end bearing bracket 5 and rear end cap 6, It is equipped with bearing chamber on drive end bearing bracket 5 and rear end cap 6, if being equipped with the dry bearing being placed on main shaft in bearing chamber, drive end bearing bracket 5 is equipped with For the preceding gland 8 of fixing bearing, rear end cap 6 is equipped with for the bearing spacer 9 of preloaded bearing and for sealing the anti-of bearing Dirt lid 10, the encoder 11 and braking system for being placed in 10 outside of dustproof cover are also cased on main shaft 1, and braking system includes being placed on main shaft Brake disc 12 on 1 and the braking clamp 13 for controlling the braking of brake disc 12, the outside of main shaft 4 is additionally provided with radiator.

Main shaft 1 is equipped with multiple step slot structures, becomes multi-segment structure and is easily installed all parts, 5 He of drive end bearing bracket Rear end cap 6 is both secured on main shaft 4, and preceding gland 8 is fixed on drive end bearing bracket 5, and dustproof cover 10 is fixed on rear end cap 6, main shaft Outer end is additionally provided with fixture nut 28, and for fixing brake disc 12, braking clamp 13, bearing spacer 9 and dustproof cover 10, main shaft 1 is close It is directly driven for installing air spider, the motor direct-drive that main shaft 1 is made of stator 3 and rotor 2 one end of drive end bearing bracket 5 Dynamic air spider rotation, structure greatly simplifies, and increases transmission stability, avoids conventional gears transmission or belt wheel transmission is made At intermediate energy loss, transmission accuracy it is poor, be driven it is unstable the problems such as, encoder 11 is placed on main shaft 1 for realizing lathe Closed-loop control, caliper 13 is mountable on lathe, outside brake disc 12 and caliper 13 apply when main shaft 1 stops operating Brake force avoids being influenced main axis by external force, and brake disc is also used as the ring flange of installation rotary cylinder or oil cylinder, Due to being provided with pull rod in main shaft, pull rod is connected to fixture.

It is arranged on the main shaft 1 there are two contracting set 14, two contracting sets 14 are respectively placed in the both ends of rotor 2, also set on main shaft 1 There is the locking nut 15 for fixed contracting set 14, rotor spacer 16, one of contracting are equipped between locking nut 15 and contracting set 14 Set 14 is contradicted with the step groove on main shaft 1, another contracting set 14 is locked by locking nut 15, and contract set 14 and rotor 2 support Contacting surface is the conical surface, when locking, can increase the connective stability between rotor 2 and main shaft 1, and also have increase transmission stability.

The radiator includes the outer casing 17 for covering in 4 outside of main shaft, and the bottom of outer casing 17 is equipped with ventilation hole 18, The top of outer casing 17 is equipped with thermovent 19, and fan 20 is equipped in thermovent 19, and the outer wall of main shaft 4 is equipped with several cooling fins 21, radiating flow passage 22 is formed between two abutting fins 21, is connected between ventilation hole 18 and thermovent 19 by radiating flow passage 22.

Cooling fin 21 can increase main shaft 4 and radiate outward, and when fan 20 starts, outside air is sucked by ventilation hole 18, And thermovent 19 is flowed to along radiating flow passage 22, so that fast speed belt walks the heat on cooling fin 21, realize rapid cooling, and thermovent 19 at top, meets hot-air and floats more easily separate, avoids hot gas and be vented the sucking of hole 18 again.

It is equipped with capillary groove 24 between the outside and main shaft 1 of the preceding gland 8, the liquid such as external coolant liquid is avoided to enter main shaft In body 4.

The bottom of the main shaft 4 is equipped with fixing seat 25, and four angles of fixing seat 25 are equipped with fixation hole 26, fixation hole 26 For installing bolt, in order to facilitate the installation of, the bottom of main shaft 4 is additionally provided with the slot 27 being connected to fixation hole 26, and slot 27 Face ventilation hole 18 further increases heat dissipation effect convenient for increasing the air permeability of ventilation hole 18.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, the skill of this field Art personnel carry out common variations and alternatives within the scope of technical solutions of the utility model should be included in the guarantor of the utility model It protects in range.

Claims

1. a kind of asynchronous head of a bed of monoblock type including main shaft, the rotor being placed on outside main shaft (2), is placed on the stator (3) of rotor (2) outside Be placed on the main shaft (4) of stator (3) outside, it is characterised in that: the both ends of the main shaft (4) further respectively have drive end bearing bracket (5) With rear end cap (6), it is equipped with bearing chamber on drive end bearing bracket (5) and rear end cap (6), is equipped with several axis being placed on main shaft in bearing chamber Hold, drive end bearing bracket (5) be equipped with for fixing bearing preceding gland (8), rear end cap (6) be equipped with for preloaded bearing bearing every Cover (9) and the dustproof cover (10) for sealing bearing, be also cased on main shaft the encoder (11) being placed on the outside of dustproof cover (10) and Braking system, braking system include the brake disc (12) being placed on main shaft and the braking clamp for controlling brake disc (12) braking (13), radiator is additionally provided on the outside of main shaft (4).

2. the asynchronous head of a bed of a kind of monoblock type according to claim 1, it is characterised in that: contracting there are two being arranged on the main shaft It covers (14), two contracting sets (14) are respectively placed in the both ends of rotor (2), and the locking screw for fixed contracting set (14) is additionally provided on main shaft Female (15) are equipped with rotor spacer (16) between locking nut (15) and contracting set (14).

3. the asynchronous head of a bed of a kind of monoblock type according to claim 1, it is characterised in that: the radiator includes covering in master The bottom of outer casing (17) on the outside of axis body (4), outer casing (17) is equipped with ventilation hole (18), and the top of outer casing (17), which is equipped with, to be dissipated Hot mouth (19), thermovent (19) is interior to be equipped with fan (20), and the outer wall of main shaft (4) is equipped with several cooling fins (21), and two is adjacent Radiating flow passage (22) are formed between cooling fin (21), between ventilation hole (18) and thermovent (19) even by radiating flow passage (22) It is logical.

4. the asynchronous head of a bed of a kind of monoblock type according to claim 1, it is characterised in that: the outside of the preceding gland (8) with Capillary groove (24) are equipped between main shaft.

5. the asynchronous head of a bed of a kind of monoblock type according to claim 1, it is characterised in that: the bottom of the main shaft (4) is set There is fixing seat, four angles of fixing seat (25) are equipped with fixation hole (26).