SU1222531A1 - Percussive mechanism - Google Patents

Description

one

The invention relates to hand-held devices used in the processing of various materials and parts by pressure, as well as in the performance of various assembly and other assembly works.

The purpose of the invention is to increase the efficiency of the mechanism by adjusting the impact force.

FIG. 1 depicts the shock mechanism, the general view ;,% u. 2 shows section A-A in FIG. 1 ;;: on the GFI. T is the second variant of the lower part 4a) of the percussion mechanism. .

The percussion mechanism contains a housing 1 mounted therein with the ability to move a load 2 spring-loaded along the axis of the housing 1 and; a load guide rod 3, while the load 2 is rigidly connected with the guide rod 3. In addition, the impact mechanism contains a device for charging the load in the form of a hinged and spring-loaded fixed on the body of an unequal arm 4, the end of the short arm 5 of which is articulated to the pawl 6, which is spring-loaded to the unequal shoulder 4 and contacts the pins 7 fixed on the guide rod 3 the length of its axis with the same step between them. On the guide rod 3, the teeth 8 are inclined to its axis. The impact mechanism also includes an adjustable stop made in the form of a sleeve 9 with a flange 10 and longitudinal grooves 11 and mounted on the housing 1 - rotatably and fixed on the guide rod 3 through the threaded joint 12 of the handle 13 with the tip 14, interacting with the longitudinal grooves 11, and the trigger device, which is a pin 15, spring-loaded on the axis, installed parallel to the guide stem 3 and having a flange 16, This one with the flange 10 of the sleeve 9, and the trigger dog 17, mounted perpendicular to the rod 15, cooperating with this rod 15 and spring-loaded 18 by the spring to the inclined teeth of the 8-bar of the guide rod 3.

The percussion mechanism works as follows.

In the initial position of the percussion mechanism, the load 2 is in the lower

position and spring presses the hammer to the housing 1, while compressing the spring of the hammer. When moving the unequal arm 4 down, its spring-loaded dog 6 moves upwards and with the help of the tongs 7 moves upward the guide rod 3 with the load 2, while compressing the load spring. The trigger dog 17 of the trigger device at the same time slides along the inclined teeth m 8 of the guide rod 3 and at the end of the rotation of the uneven lever 4, after jumping the dog 6 from the brackets 7, locks onto the right rod 3 on the housing 1 (the rotated position of the arm) - the first lever 4 and its spring-loaded dog 6 is shown with a dash-dotted line). Unequal shoulder lever 4 under the action of the spring returns to its upper position, and its spring-loaded dog 6 engages with another pair of pins 7 with rotation around the axle axis and with angular compression, expansion of its spring.

When the unequal arm 4 is being lowered again, the cycle of operation of the load charging device 2 is repeated until the load is provided by the trigger device by axial movement of its rod 15, which, with its bevel, pulls the trigger dog 17 out of engagement with the inclined teeth 8 of the guide rod 3 a load 2, which in turn is moved down by the action of a spring, strikes the striker with a working tool (not shown). The trigger bar 15 in turn is displaced by axial movement of the adjustable stop (sleeve 9) due to the interaction of the flanges 10 and 16. In this case, the amount of compression of the load spring, i.e. The required impact force is set by turning the handle 13, at which the sleeve 9 moves linearly relative to the housing 1, thereby changing the distance between the flange 1 of the sleeve 9 and the flange 16 of the trigger bar 15.

5 20- 25 30 35 40 45 50

In the second variant of the percussion mechanism (Fig. 3.), the sleeve with a working tool fixed in it (not shown) makes a rotational movement due to its interaction, not a brake connection with a striker making only linear movements (the pins exclude its turning relative to the housing 1).

In this case, in both variants of the percussion mechanism, when the load is loaded, the strikers 2, under the action of their springs, return to their initial position, ieepxHee.

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/ 7

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Fig.Z

Claims (2)

1. SHOCK MECHANISM, comprising a housing, a load mounted on it spring-loaded along the axis of the housing, a load guide rod, a load cocking device in the form of an unequal lever pivotally and spring-loaded on the housing, the end of the short arm of which is pivotally connected to a dog that is spring-loaded to the lever and is in contact with the pins, the release device of the load, characterized in that, in order to increase the efficiency of the mechanism by adjusting the force of impact, it is equipped with an adjustable stop, interacting with the trigger device, and additional pins, all the pins are fixed on the guide rod along its axis with the same pitch between them, the load is rigidly connected to the guide rod, and on the latter, teeth interacting with the trigger device are inclined to its axis. . 2. Pop mechanism. ^ Characterized in that the adjustable stop is made in the form of a sleeve with a flange and longitudinal grooves and mounted on the housing with the possibility of rotation and mounted on the guide rod by means of a threaded connection of the handle with pins interacting with the longitudinal grooves and the trigger device is an axially spring-loaded rod mounted parallel to the guide rod and having a flange interacting with the sleeve flange and a trigger dog mounted perpendicular to the rod, in interacting with the latter and spring-loaded to the inclined teeth of the guide rod. I 222531