SU1516194A1 - Arrangement for reducing a coupling - Google Patents

Abstract

The invention relates to a technique for changing the diameter of pipe ends, in particular to devices for crimping couplings at the ends of hoses or high pressure hoses, and can be used both in stationary and field conditions. The purpose of the invention is to expand the technological capabilities and improve the quality of embedding. The device contains a matrix (M) 4 placed on the housing 1, cams (K) 5 of crimping, mounted on M 4 a press-in mechanism made in the form of a cup 9. Inside the cup 9 there is a slot 13 with slots in which the displacement of the collet 18 The device is designed as a two-stage screw pump 6. A pre-assembled nut with a nipple is inserted onto the centering mandrel 3. A sleeve is then put on, after which M 4 is screwed onto housing 1 and K 5 is centered around the sleeve. Then the sleeve is inserted using the clamping jaws 19 and is pressed in using the sleeve 13, the collet 18 and the sleeve 9. After the sleeve is pressed into the sleeve, the sleeve K 5 is crimped. 3 sludge.

Description

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Do u relate u to the technique of changing the diameter of the ends of the corpse, in particular to the D.1N devices for crimping the sleeves at the ends of the hoses or high pressure points, and can be used in stationary and li field conditions x

The purpose of the invention is the expansion of technological capabilities and improvement of the quality of embedding.

FIG. I represents the device, about-1 view, longitudinal section (on the right is the initial position, the collet compresses the sleeve; on the left, yawning after pressing the sleeve into the coupling and on the nipple); in fig. 2 - the same, forged in

the coupling and on the nipple, the collet is expanded; on the left the clutch is compressed by a cam; in fig. , 3 1-cut. L -. L in FIG. 2

The device for crimping the sleeves comprises a housing 1, a support 2 in the form of a piston, a centering mandrel, 3, a matrix 4, made with an internal thread, tapered surfaces, and a reduction shunt chuck 5, which are usually eight in size and connected between themselves, compression springs (not shown) installed in the cam holes, a manual two-stage screw pump 6 with a nopujHeM and a pusher 7 placed in the sleeve 8. The glass 9 by the legs 10 is held on the mat 4 in the slots 11. The glass 9 is made L internal 12 thread for A movable sleeve 13, the inner surface 14 of which is made conical, and in the upper part of the sleeve 13 there are naira vl luer grooves 15 and an external thread 16 for 1K 1) there is a neck nut retainer 17. The device also has a resolution collet 18 made c: x) xx (xbc) mixing relative to the axis along the conical surface 14 and papam 15. Tsata 18 has clamping gugs 19 and a split shank 20. D; 1H Bjia- movable bushing 13 has a swivel ring 21 sec. handles 22. The centering mandrel 3 is used for putting on the elements of 2.3 clutch sleeves, nipples with a nut, and their alignment, and the inner cavity 18 for receiving 1.1angi sleeve 24.

The device works as follows; 1.pm. In the initial position, the cam lobes 5 are divorced to the side, movable, 1ka 13 with the collet 18 is in the upper position, while the clamping jaws 19 of the collet are divorced in such a way that the sleeve passes through them, as well as : nut, nipple, 1b, coupling. First, a manually assembled nut with a nipple is inserted onto the centering mandrel 3, then a sleeve is put on, noc, i.e. by rotating the die 4 with light pressure on the handles 25, and the die 4 is screwed onto the body I. As a result, iiToro crimping jaws 5 approach the center

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and the clutch is centered. Then a sleeve is inserted into the device up to the stop on the centering mandrel 3, by rotating the lock nut

17 thread 16 raises up collet

18a, the shank 20, and thereby, the gripping jaws 19 of the collet 18 of the sleeves are made, since the clamping jaws

19 tangs 18, slid along the tapered surface 14 of the movable sleeve 1.3, approach the center and press out the sleeve. Following this, by manually rotating the movable sleeve 13 by the handles 22, it is screwed along the thread 12 with the collet 18 clamped into the sleeve 9. In this case, the sleeve is pressed onto the nipple and put on the coupling.

After pressing the sleeve into the reinforcement, and this can be determined, for example, by the length of the remaining part of the sleeve, the sleeve is released from the clamp in the collet 18, which is done by turning the retaining nut 17 down and then the movable sleeve 13 in the opposite direction and transferring it to the original direction. After pressing the sleeve into the sleeve and the nipple, the sleeve is squeezed.

For this, the matrix 4 is screwed onto the housing 1, the cams 5 approach the center and press out the clutch, then lift the support 2, displacing the working fluid from the working pump 6 (T), first wraping the pump 8 sleeves into the housing 1 create an increased pressure under the supports (.) th 2, then by rotating the pusher 7 and moving pg) rsn create the maximum pressure of the working fluid on the lower end of the support 2. After the clutch is compressed, the pusher 7 and gil-: v 8 are unscrewed from the body, then, if necessary, the reduction cycle is repeated until necessary caliber reduction, 4T (j maybe set,; 1eno on applied stroke markings. mat 1s 4. When operating, the device is fixed by the base of body 1 in a vice and 1 and other their adaptations so that the operator can comfortably handle handles 22 and 25 movable watts, locks 13. matrices 4 and screw pump b

Claims (1)

Invention Formula The device for compression of the coupling mainly hoses and. 1 and high pressure hoses containing a support disposed in the housing, a matrix with a conical inner surface connected to the housing by means of a threaded joint, crimping jaws with a conical outer surface mounted in the matrix at the end face of the support and accommodated in the housing a two-stage pump, characterized in that, in order to achieve the technological capabilities (by using the device in field installations and improving the quality of the embedment), it is equipped with a mechanical mechanism for fitting the sleeve, Nogo matrix glass at the end of an internally threaded Placing a glass sleeve with longitudinal slots and with the retaining nut at the end, and mounted for axial movement but the longitudinal grooves of the collet with the sleeve shank, the stopper opirayuschims conductive nut. 23 YU FIG. five