SU1256903A1 - Arrangement for disassembling bush-roller chain - Google Patents

Description

2. The device according to claim 1, characterized in that it is equipped with track switches, kinematically associated with a slider, the invention relates to assembly and disassembly equipment, and can be used in enterprises to repair agricultural and other machines, in particular for the development of the roller chain.

The aim of the invention is to increase the productivity and quality of development by providing accurate fixation of chain links relative to the force mechanism.

FIG. 1 shows a device for disassembling the bush-roller chain, front view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one;

The device for disassembling the roller chain contains a base 1 with chain guides 2 mounted on the table 3 of the crank press 4. On the base 1, a mechanism for stepping the chain in the form of a slide 5 and driving its movement comprising an electric motor 6, a gearbox 7 and fixed there are step pulleys 8 and 9 on them. In the slider 5 there is a cavity 10 in which a gripping element 11 with ratchet teeth 12 is mounted on the working side in a direction perpendicular to the guide chain surfaces whose inclination is in the direction of movement of the chain.

On the base 1, an opposing gripping element 11 is provided with a locking element 13, which is formed with recesses 14 in the shape of a chain on the working surface and ratchet teeth, the inclination of which is directed in the direction of movement of the chain, and is spring-loaded towards the chain guides through springs 15.

The crank press 4 comprises a half 16, connected by a connecting rod 17 to an eccentric shaft 18, an electromagnetic clutch 19, a flywheel 20 and an electric motor 21. On the slider 16 of a cryping press there are fastened punches 22, which press out the chain rollers.

On base 1, coaxially to the slider 5, a limit switch 23 is mounted, connected by an electrical circuit with an electromagnetic clutch 19, periodically rigidly connecting the eccentric shaft 18 to the flywheel 20.

step feed chain and clamping the chain and connected to an electrical control system.

The gap between the button 24 of the limit switch 23 and the slider 5 of the step-feed mechanism is selected from the condition of the electromagnetic clutch being turned on at the moment of installation of the chain link rollers coaxially to the punches.

In addition, a limit switch 25 is connected in series with the limit switch 23, which is kinematically connected by a spring-loaded chain clamp 26 by means of a pusher 27 and a lever 28.

On the control panel of the press there are buttons for switching on and off 30 of the electric motor 21, and buttons for switching on and off of the electric motor 6 of the step feed mechanism on the mounting plate.

The device works as follows.

When the button 29 is pressed, the electric motor 21 is turned on, which drives the flywheel 20. The circuit is disassembled and the first link is engaged with the gripping element I. Then, pressing the button turns on the electric motor 6, which reciprocates the slider 5 by means of pulleys 8, 9 and eccentric gear shaft 7.

When moving the slider 5 to the extreme right (according to the drawing) position, the end face of the slider presses the button 24 of the limit switch 23. In this case, the gripping element sets the rollers of the chain joints coaxially to the punches 22, and the clamp 26 moves the button of the limit switch 25 by means of the pusher 27 and the lever 28, the closure of the electric circuit of the electromagnetic clutch 19.

Electromagnetic clutch 19 rigidly connects the flywheel 20 to the eccentric shaft 18, which reciprocates the press slide 16 to the punches 22 by means of a connecting rod 17. The rollers are pressed out of the chain.

When the feed mechanism slider 5 is moved to the leftmost position (according to the drawing), the button 24 is released, the electromagnetic clutch disengages the flywheel and the eccentric shaft, while the press slider is locked in the extreme upper position. The locking element 13 locks the chain, and the gripping element 11 engages with the next chain link. Cycl is repeated.

After the disassembly of the chain is completed, the clamp 26, moving the pump, releases the button of the limit switch 25, and opens the electrical circuit for turning on the electromagnetic clutch 19.

The device can be used to assemble a chain, for stamping chain rollers.

after assembly with a corresponding change in the design of punches.

The use of this device will make it possible to significantly increase labor productivity in disassembling, assembling, and chasing the chain at repair facilities, making fuller use of technological equipment. The design of the device eliminates the manual base operation.

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Compiled by A. Burov

Editor M. BanduraTehred I. VeresKorrektor V. But ha

Order 4866/11 Circulation 1001Subscription

VNIIPI USSR State Committee

discoveries and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (2)

1. DEVICE FOR DISASSEMBLY OF A BUSHING AND ROLLER CHAIN, containing chain guides mounted on the base, a step feed mechanism, a power mechanism for extruding the chain rollers and an electrical control system for said mechanisms, characterized in that, in order to improve the performance and quality of disassembly due to ensuring accurate fixation of the chain links relative to the power mechanism, it is equipped with a locking element mounted on the base with the possibility of reciprocating movement in the direction perpendicular to the guide chain, spring-loaded to the last and made with recesses in the form of a chain on the working surface and ratchet teeth, the inclination of which is directed towards the movement of the chain, the step feed mechanism is made in the form of a drive slide with a cavity placed opposite to the fixing element and a gripping element installed in the said cavity of the slider coaxially with the locking element with the possibility of reciprocating movement in the direction perpendicular to the guide chain, the spring to the latter and made with recesses in the form of chain links on the working surface and ratchet teeth, the inclination of which is directed towards the movement of the chain. SU ,, „1256903 j 2. The device according to π. 1, characterized in that it is equipped with limit switches kinematically connected to the slide of the step feed mechanism and the chain clamp and connected to the electric control system.