SU1351771A1 - Mechanical remover - Google Patents

Abstract

The invention relates to mechanical engineering. The aim of the invention is to increase efficiency by increasing the initial removal force and increasing ease of operation. The mechanical puller contains a stop pin 13 placed in the through groove 16 of the stop screw 8. Stop pins 14 (L with SP (

Description

135

To interact with the stop pin 13, they are rigidly fixed to the clamps 7 of the intermediate sleeve 4. With considerable removal force, the drive element 9 is unlocked with the stop screw 8 and connected with clamps 15 to the intermediate sleeve 4. Rotation of the drive element 9 is transmitted to the intermediate sleeve 4 through the pins 10, which disengaged from the flange 6 of the intermediate sleeve 4 its fi

: The invention relates to mechanical engineering and can be used to remove gear shafts from shafts; pulleys, bearings and other pressed parts.

The aim of the invention is to increase efficiency by increasing the initial removal force and increasing ease of operation.

FIG. 1 shows a mechanical puller, a longitudinal section; FIG. 2, section A-A in FIG. one; in Fig.3 is a section bB in Fig. 1.

The mechanical puller contains the yoke 1 with the holes 2, 3. 0.0. The thread 3 is threaded. The axis of the holes 2, 3 are parallel. In the threaded hole 3 there is an intermediate sleeve 4 threaded on the inner and outer cylindrical surfaces and through holes 5 on the end surface of the flange 6. In the holes 2 are located the clamps 7 of the intermediate sleeve 4, spring-loaded relative to the crosshead 1, for periodic interaction with the through holes 5. In the intermediate sleeve 4 there is a stop screw 8, on which the drive element 9 is mounted with the possibility of axial movement with pins 10 periodically entering through through holes 5. Grips 11 pivotally connected to the crossmember 1. The sleeve 12 is coaxially mounted in the intermediate sleeve 4 rotatably with respect to the latter.

The thrust pin 13 is pressed into the sleeve 12 perpendicular to the axis of the latter. Locking pins 14 for inter 7777

When the locking pins 14 prohibit the rotation of the stop screw 8 relative to the intermediate sleeve 4, interact with the stop plate 13. Since the external thread pitch of the intermediate sleeve 4 is greater than the internal thread pitch, the decompression force is inversely proportional to the difference of these steps . 3 il.

The action with the stop pin 13 is rigidly fixed on the latches 7 of the intermediate sleeve 4 coaxially last and placed in the holes 2.

Clamps 15, spring-loaded relative to the drive element 9, are hinged on it to interact with the flange 6. The stop screw 8 is made with a through longitudinal groove 16, in which a part of the stop pin 13 is placed. The drive element 9 is fixedly fixed on the stop screw 8. Step threads on the outer surface of the intermediate sleeve 4 is greater than the thread pitch on its inner surface.

In a specific design (Figs. 1-3), the sleeve 12 can rotate relative to the intermediate sleeve 4 is provided by installing the sleeve 12 on the pins 17, and the possibility of fixing the drive element 9 on the stop screw 8 is spring-loaded relative to the drive element 9 and the latch 18 mounted on it, one of the holes 19, made in the stop screw 8. In the drive element 9, a four-sided hole is made, which interacts with the square shank of the stop screw 8.

The puller works as follows.

The grippers 11 are screwed on the removable part 20 and rotate the drive element 9, while the stop screw 8 rotates, moving along the internal thread of the intermediate sleeve 4 with

speed proportional to the pitch of its thread.

The stop screw 8 rests on the end of the shaft 21. With considerable effort to remove the part 20, the spring-loaded clamp 18 is removed from the hole 19 on the stop screw 8, the drive element 9 is moved along the stop screw 8 and the pins 10 are inserted into the through holes 5 of the flange 6 of the intermediate sleeve 4 by pushing the retainers 7 of the intermediate sleeve 4 with locking pins 44 fixed on them, which, with their ends, prevent the rotation of the stop pin 13, part of which is located in the groove 16 of the stop screw 8, and consequently, the rotation of the latter. At the same time, the claws 15 come over the flange 6 and hold the drive element 9 in a connected state with the intermediate sleeve 4. With further rotation of the drive element 9, the intermediate sleeve 4 rotates with it, disengaged from the engagement with the through holes 5 of the clamps 7 of the intermediate sleeve 4 does not prevent rotation of the latter. In this case, the stop screw 8 moves relative to the crosspiece 1 to the shaft end 21 at a speed proportional to the difference in the external and internal threads of the intermediate sleeve 4. The pressing force is inversely proportional to the difference in the external and internal threads of the intermediate sleeve 4.

When loosening the removal force, the pins Yu of the drive element 9 are aligned with the clamps 7 of the intermediate sleeve 4, release the clamps 15 from engagement with the flange 6, move the drive element 9 to the four-sided end of the stop screw 8. Spring-loaded clamp 18 enters the hole 19 of the stop screw 8 and stops the drive screw element 9 on the stop screw 8 from axial movement.

In this case, the clips 7 are included in

the locking pins 14 get out of engagement with the stop pin 13 and stop interfering with the rotation of the stop screw 8 relative to the intermediate sleeve 4. Rotate the drive element 9 to finish the pressing out of the part 20,

Claims (1)

10 claims Mechanical puller, containing a traverse with holes, one of which is threaded, the axes of which are paralellically, an intermediate sleeve threaded on the inner and outer cylindrical surfaces and through-to-bends on the face surface 20 flanges located in the holes, spring-loaded with respect to the cross member, clamps of the intermediate sleeve for periodically interacting with the through holes, located 25 in the intermediate sleeve, a stop screw on which an actuating element with pins is mounted with the possibility of axial movement, periodically thirty 35 40 through holes, and clamps, pivotally verso 45 associated with and u u and u with so that, in order to increase efficiency, it is equipped with a sleeve coaxially mounted in the intermediate sleeve rotatably with respect to the latter, a stop pin pressed into the sleeve perpendicular to the axis of the latter, locking pins for engagement with the stop pin fixedly fixed on the anchors of the intermediate sleeve insert, in order to interact with the stop pin rigidly fixed on the fixings of the intermediate sleeve insert to insert the insert sleeve, rigidly fixed on the anchors of the last sleeve to the sleeve and placed in holes, under spring-loaded with respect to the drive element, hinges mounted on it to interact with the flange, the stop screw is made with a through longitudinal groove in which a part of the stop pin is placed, with the water element installed with the possibility of fixing on the stop screw, and the through holes 5 of the flange 6 and the fi-50 threads on the outer surface sow the intermediate sleeve 4 from the intermediate sleeve more than the gate pitch relative to the crosspiece 1, and the threads on its inner surface the locking pins 14 get out of engagement with the stop pin 13 and stop interfering with the rotation of the stop screw 8 relative to the intermediate sleeve 4. Rotate the drive element 9 to finish the pressing out of the part 20, 0 claims Mechanical puller, containing a traverse with holes, one of which is threaded, whose axes are parallel, placed in a threaded hole an intermediate sleeve threaded on the inner and outer cylindrical surfaces and through holes on the end surface 0 flanges located in the holes spring-loaded with respect to the cross member of the clamps of the intermediate sleeve for periodically interacting with the through holes located 5 in the intermediate sleeve, the stop screw, on which the drive element with pins is mounted with the possibility of axial movement, periodically through holes, and clamps, pivotally verso associated with and u u and u with by five 0 five that, in order to improve efficiency, it is equipped with a sleeve coaxially mounted in an intermediate sleeve for rotation with respect to the latter, a stop pin pressed into the sleeve perpendicular to the axis of the latter, locking pins for engagement with a stop pin fixed on the fixings of the intermediate sleeve coaxially to the coaxially pin attached to the stop pin fixed on the fixings of the intermediate sleeve coaxially to the coaxially pin attached to the stop pin fixed on the fixings of the intermediate sleeve coaxially with the lock pin for coaxially fixed on the fixings of the intermediate sleeve placed in holes, spring-loaded relative to the drive element, hinges mounted on it with clamps for interacting with the flange, the stop screw is made with o a through longitudinal groove in which a part of the stop pin is placed, the drive element is mounted with a possibility of fixation on the stop screw, and 0 threads on the outer surface of the intermediate sleeve is greater than the thread pitch on the inner surface of its FIG. 2 phyaz Compiled by L.Zugaev A.Makovska Editor Tehred L.Oliynyk Proofreader A.Obruchar Order 5525/13 Circulation 952Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5 Production and printing company, Uzhgorod, st. Project, 4