SU1730182A1 - Apparatus for hardening rolls - Google Patents

Abstract

The invention relates to heat treatment and can be used to heat strengthen rollers of tracked engines of tractors and other cylindrical parts. The purpose of the invention is to simplify the design, simplify its metal consumption and increase productivity. The installation includes a frame 1, inside which a beam 2 is hinged on a parallelogram. In the lower part of the beam there is a tooth 4 having a beveled upper edge 5 on one side and a shaped sample 6 on the other. In the upper part of the installation, sprayers 7 are fixed to spray cooling fluid. Drive of beam 2 is provided by cylinder 8 pivotally mounted on frame 1. In frame 1, bearing profiled rollers 9 have a groove, which includes a tooth 4, on bearings. flexible hose 19. Heated roller 22 from the receiving tray 14 falls on the teeth 4, which raise the rollers and due to the upper edge 5 beveled at an angle, the rollers are fed from position to position in the unloading direction. 3 il. cl

Description

The invention relates to heat treatment and can be used to heat strengthen rollers of tracked propulsions of tractors and other cylindrical parts.

The aim of the invention is to simplify the design, reduce its metal consumption and increase productivity.

Figure 1 shows the installation, a longitudinal section; figure 2 - section aa in Fig, 1; FIG. 3 shows a plant for hardening rollers in a position in which the part is fed from position to position, a longitudinal section,

The plant for hardening rollers contains a frame 1, made in the form of a box,

inside which on. the parallelogram is hinged beam 2 for transporting rollers. The parallelogram is formed by tami 3, which are hingedly mounted on the frame 1. In the lower part of the beam 2, a tooth 4 is fixed, having a beveled upper edge 5 on one side and a shaped sample 6 on the other. Sprayers 7 are fixed in the upper part of the installation for spraying coolant. The working surface of the sprayer is made concentrically to the diameter of the hardened part and contains a large number of holes, ensuring a uniform flow of coolant. Sprayers 7 fastened with a beam 2. Drive vertical displacement 1

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The beam 2 is carried out by a cylinder 8 pivotally mounted on a bed. In frame 1, bearing profiled rollers 9 are mounted on bearings. Beam 2 is installed under profiled rollers 9, which have a groove, which includes teeth 4. Driven profiled rollers 9 are parallel to each other to form creeks between them and rotate into one the side. Sprayers 7 are placed above the creeks. Tooth 4 is placed between the drive profiled rollers 9.

The upper edge of the teeth 4 is made with an inclination towards the output part of the installation, and its apex is located in the area of the stream, adjacent to the profiled roller 9 more distant from the output part of the installation.

The profiled rollers 9 receive a drive from the electric motor 10 through a gearbox 11 and the rotation from roller to roller is transmitted through double sprockets 12 of the chain transmission 13. The tooth 4 is arranged so that, when the beam 2 moves, they pass between the rollers 9.

On the base 1, a loading tray 14 with a movable stop 15, controlled by the beam 2, is fixed by means of a double-arm lever 16 and a fork 17.

The discharge tray 18 is fixed on the frame 1.

The quenching fluid is supplied through a flexible hose 19. The moment of fluid supply is controlled by valves 20. In the lower part of the frame 1 there is an opening 21 for draining the coolant.

Installation for hardening rollers according to the invention works as follows.

The heated roller 22, with a certain time interval, specified by the production cycle of the roller on the automatic line, is fed to the loading tray 14 (the roller feed mechanism is not shown in the drawing). On the loading chute 14, the roller 22 is held by the movable stop 15.

Other rollers are in their own working positions.

The cylinder 8 is actuated and by means of hinged-mounted m3, which, in their method of installation, form a parallelogram, raises beam 2 upwards. The beam 2 with the fork 17 fixed on it acts on a double-arm lever 16 mounted rotatably on the frame 1.

Two shoulders lever 16 lowers the movable stop 15, thereby freeing the roller.

In this case, the beam 2 by the teeth 4, which are fixed in the lower part of the beam, raise the rollers and, thanks to the upper edge 5 of the teeth 4 which are beveled at an angle, the rollers 22 are fed from position to position in the direction from loading to the discharge side. The heated roller 22, previously held by the movable support 15, now rolls down the inclined loading chute and is held in shape

0 by sampling 6 teeth4 (fig.Z). Immediately upon the arrival of upward beam 2, cylinder 8 feeds beam 2 down. The beam 2 with the teeth 4 fixed on it goes down and releases the roller 22, which falls between the rotating rollers 5 with one side of the profiled rollers 9 mounted on bearings. The rotation of the rollers 9 is provided by the electric motor 10 through the gear 11 of the chain transmission 13 and is transmitted from the roller to

0 video through double sprockets 12 chains 13.

At the same time, the rollers 22 located at other positions, also when raising-lowering the beam 2, are fed by the teeth 4 from position to position from the direction of loading to the unloading side.

After lowering the beam 2, the rollers trapped between the rotating profiled rollers 9 begin to rotate, which

0 ensures uniform hardening of rollers over the surface,

Sprayers 7 are lowered onto a hardenable roller 22 with a certain clearance. The valve 20 is turned on and the cooling

5, the fluid through the valve 20, the flexible hoses 19 is supplied to the sprayers 7. The working part of the sprayers is concentric with the diameter of the hardened roller and contains a large amount on the working surface

0 small holes. Due to this, the cooling liquid is uniformly supplied to the rotating roller and high-quality hardening is ensured.

When lifting the beam 2 upward, the teeth 4 pass through the grooves made on the surfaces of the drive profiled rollers 9 and raise the rollers 22. The rollers 22, rolling along the upper edge 5 of the teeth 4, fall into position (Fig. 3), when the center

0 roller moves beyond the center of the drive profiled roller 9 (size E),

Due to this, the roller is safely transferred from position to position, and the extreme roller is unloaded onto an inclined discharge tray.

5 18 and rolls into the container or is fed for further operation. The used liquid through the opening 21 is drained from the installation.

The use of a facility allows for a drive of a shutter to provide

cyclic loading, sprayer feed to the hardened part and feed the part from position to position and to unload the hardened part to use force from one cylinder, which simplifies the design of the installation, reduces its intensity.

Claims (1)

The use of profiled drive rollers containing a groove for the passage of the teeth, which, with their upward movement, provide the part from position to position and unloading, allows simultaneously hardening several parts, which improves productivity. Claims apparatus for hardening rollers, containing drive profiled rollers arranged parallel to one another to form creeks between them to accommodate rollers, sprayers placed above creeks, and a beam for transporting rollers with its vertical movement, characterized in that , in order to simplify the design, reduce its metal consumption and increase productivity, it is equipped with fixed on the beam between profiled rollers teeth, the upper edge of which is made with an inclination towards the output of the installation, and its top is located in the area of the stream adjacent to the more remote from the output parts of the installation roller, while the beam is installed under the profiled rollers, and sprayers fastened to the beam.