CN2214262Y

CN2214262Y - High speed profile cutting machine

Info

Publication number: CN2214262Y
Application number: CN 95233296
Authority: CN
Inventors: 袁家彦; 李建勇
Original assignee: BRANCH 2 OF LUNAN MACHINE PLANT
Current assignee: BRANCH 2 OF LUNAN MACHINE PLANT
Priority date: 1995-02-22
Filing date: 1995-02-22
Publication date: 1995-12-06
Anticipated expiration: 2005-02-22

Abstract

The utility model relates to a high speed section material cutting machine, which is used for cutting the section materials of steel pipes, channel steels, angle steels, etc. The machine has the advantages of a single-phase series excitation machine and a single-phase or three-phase asynchronous motor. The integral structure is similar to that of the single-phase series type. An electric machine bases on the machine core of the single-phase or three-phase asynchronous motor. The shape of the stator of the single-phase or three-phase asynchronous motor is changed from a circle to a square circle. Four corners of the stator are respectively provided with a dead slot. The outer shell of the motor adopts an iron made outer shell to be favorable for heat radiation and reduction of the outer diameter of the electric machine. The utility model has the advantages of reliable performance, high heat radiation efficiency, low noise, low cost, reasonable and compact structure, etc.

Description

High speed profile cutting machine

The utility model relates to a kind of high speed Profile cut-off machine, and it is used for the cutting to section bars such as steel pipe, round steel, channel-section steel, angle steel.

At present, existing Profile cut-off machine, can divide two big classes on structure: a class drives single-phase, the phase asynchronous type of grinding wheel rotation cut workpiece by transmission system single-phase or that threephase asynchronous is formed by belt pulley, V-belt, power transmission shaft etc.; Another kind of is to drive the single phase series-wound machine type that work is carried out in the grinding wheel rotation by series excited machine by eccentric gear, output shaft.The former structure complexity, the volume heaviness, production cost is higher, and because amount of parts is many, failure rate is higher.Though latter's compact conformation, in light weight, rotating speed is higher, and noise is big, poor reliability, and can only be applicable to single phase poaer supply.

The purpose of this utility model provides a kind of novel high speed Profile cut-off machine, it is on the basis with above-mentioned two class types, the advantage of two class types is organically combined a kind of novel machine of composition, can effectively overcome defective that is difficult to overcome and the deficiency that former organic type exists separately thus.Make it have dependable performance, radiating efficiency height, advantage such as noise is little, cost is low, compact conformation is reasonable.

The utility model comprises: base 1; Bearing 2 one ends are fixed by bolts on the base 1, and bearing 2 other ends are equipped with lock-screw with hinge axis 3 lockings; Motor special 6 is connected with bearing 2 by hinge axis 3, and back-moving spring 4 is loaded on the hinge axis 3; Switch handgrip 7 is welded on the motor 6; Dust cover 8 is screwed on the end face of motor special 6; Grinding wheel 9 is fixed on the motor output main shaft 11 (Fig. 2) by pressing plate 10; 5 minutes two parts of indexable clamp, a part uses bolt on base 1, another part is slidingly connected with handwheel leading screw and base 1 respectively by bearing pin: it is characterized in that: motor special 6 adopts single-phase or threephase asynchronous, movement, its stator is shaped to square round type, and promptly the stator cross section is the square circular (Fig. 3) that foursquare four limits are formed by connecting by arc transition.Stator center leaves the cylindrical cavity that rotor is installed.

The utility model has remedied the defective of former type owing to concentrated the advantage of two class type cutting machines.Compare with former type, no matter all improve a lot in serviceability and economic performance, this type is compared with single-phase or threephase asynchronous type, and the separate unit production cost reduces by 10%, weight saving 30%, and because the minimizing of parts improves reliability.Compare with single-phase series excitation type, level of noise is reduced to 78dB by 95dB, reduced 17dB, its reliability also improves greatly owing to take common electric machine, and on the scope of application, it (is 220 volts of supply voltages that single phase series-wound machine can only be used for single phase poaer supply, frequency 50HZ), and this machine can be according to the market demand, produces two kinds of types of the single-phase or three-phase electricity of adapted, has expanded the scope of application.

Further specify content of the present utility model below in conjunction with drawings and Examples.

Fig. 1 is the utility model structure chart.

Fig. 2 is the structural representation of the utility model motor special (6).

Fig. 3 is the A-A profile of Fig. 2 motor special (6).

The utility model is formed (Fig. 1) by base 1, bearing 2, hinge axis 3, back-moving spring 4, indexable clamp 5, motor special 6, switch handgrip 1, protective cover 8, grinding wheel 9 etc.Its operation principle is: indexable clamp 5 is housed in order to holding workpiece on the base 1; Motor special 6 is connected with base 1 by hinge axis 3, bearing 2, and be equipped with back-moving spring 4 motor is propped up at hinge axis 3 places.Motor special 6 main shaft outputs are by clamping plate 10(Fig. 2) grinding wheel 9 is clamped, switch handgrip 7 is being controlled motor special 6 and is being realized that grinding wheel 9 starts and stops.

Principal character of the present utility model is the development and Design of motor special 6.Motor special 6 is based on the movement of single-phase or threephase asynchronous, and its stator moulding is by the round square round type stator 12(Fig. 3 that changes into) and on four fillets, have a dead slot 13, reduce the motor outside dimension in order to heat radiation.The design of motor special 6 main shaft outputs has loading and unloading groove 11 to be used for fixing the loading and unloading that main shaft is convenient to grinding wheel 9.The heat radiation of conventional motors utilizes motor housing to carry out, radiating efficiency is not high, this design of electrical motor special stator 12, adopt iron shell 14, solved a heat radiation difficult problem, and external diameter does lessly, temperature rise is reduced to about 40 ℃ by former 75 ℃, size has satisfied instructions for use, has met national standard.

Claims

1, a kind of high speed Profile cut-off machine, it comprises: base (1); Bearing (2) one ends are fixed by bolts on the base (1), and bearing (2) other end is equipped with lock-screw locks hinge axis (3); Motor special (6) is connected with bearing (2) by hinge axis (3), and back-moving spring (4) is loaded on the hinge axis 3; Switch handgrip (7) is welded on the motor (6); Dust cover (8) is screwed on the end face of motor special (6); Grinding wheel (9) is fixed in motor shaft by pressing plate (10) and goes out on the main shaft (11); Indexable clamp (5) divides two parts, and on base (1), another part is slidingly connected with handwheel leading screw and base (1) respectively by bearing pin a part with bolt; It is characterized in that: motor special (6) adopts single-phase or threephase asynchronous machine movement, and its stator (12) is shaped to square round type, and promptly the stator cross section is foursquare four square circulars that the limit is formed by connecting by arc transition; Decide the center and left the cylindrical cavity that rotor is installed.

2, a kind of high speed Profile cut-off machine according to claim 1, the stator that it is characterized in that described motor special (6) is square round type stator (12), and has a dead slot (13) on four fillets.

3, a kind of high speed Profile cut-off machine according to claim 1 and 2 is characterized in that the shell (14) of described motor special (6) adopts iron shell.

4, a kind of high-speed type machine cutting machine according to claim 1 and 2 is characterized in that the main shaft output design of described motor special (6) has loading and unloading groove (11).

5, a kind of high speed Profile cut-off machine according to claim 3 is characterized in that the main shaft output design of described motor special (6) has loading and unloading groove (11).