SU697870A1 - Loading hydraulic device for testing specimens of tubular shape at multicomponent loading - Google Patents

Description

one

The invention relates to the field of testing devices for testing materials and parts, of a predominantly tubular shape, loaded with internal pressure, external pressure, coolness, moment of tension, stretching, and compressive loads.

A hydraulic loading device is known for testing specimens of tubular shape under multi-component loading, containing its force case, coaxially arranged mechanism of coolness, its torque and axial force mechanism, and grippers for fastening the test sample 1

The drawback of the device is the limited ability to test tubular samples at different ratios between the axial force and the cool point, the moment of it.

The purpose of the invention is to expand the technological capabilities and reduce the size of the device.

This is achieved due to the fact that the device is provided with a shaft mounted on the housing axis with an axial channel, one end of which is connected with the axial force mechanism and the torque mechanism, and

the other end has a movable gripper, radial holes are made in the body for supplying the working medium, one of which is connected with the axial channel of the rod, the other with the cavity of the body.

In addition, the torque mechanism is rotor-made and connected to the central movable rod by means of a splined connection.

FIG. 1 shows a structural diagram of a hydraulic loading device; in fig. 2 is a section A-A in FIG. one.

Claims (1)

The hydraulic loading device comprises a force case 1, a cover 2, a central rod 3 with an axial channel 4, one end of which is connected to an axial force mechanism, a piston 5 and a torque mechanism made in the form of a rotor mechanism 6 connected to the central rod 3 the spline connection 7 and the other end of the central rod 3 is connected to the movable gripper 8 by means of a threaded element 9, cap nuts 10 and half-rings 11, fixed gripper 12. test sample 13, channels 14-23 for supplying working medium, removable building 24 gauge, hydropanel 25. The device is operated as follows o6pa3 (jM. Half ring 11 and lower nut 10 are put on sample 13. Thereafter, rotating the lower nut 10 on the end of the sample is pulled to the fixed gripper 12. The upper nut is put on the fixed sample 13 10 and half rings 11. A movable gripper 8 is screwed onto the thread of the stem end 3, and using the upper nut 10 and half-rings 11, the upper end of the specimen is threaded to the movable gripper 8. The specimen is loaded with internal pressure when the working medium is applied The channels along the channels 22 and 4. The loading of the sample with a tensile force is effected when the working medium is supplied through the channel 14, while the channel 17 to doz.1 be closed. In this case, the piston 5 moves upwards, pushes the brush 3 and the grip 8 fastened to it, which stretches the sample fastened to it 13. The sample is loaded with compressive force when the working medium is supplied through channel 15, while channel 17 must be opened to drain . In this case, 5, shifting down, there is no rod 3 and the grip 8 fastened to it, which compresses the sample fastened to it. The specimen is loaded with a torque at which the working medium is supplied through the channels 18, 20 and the channels 19, 2 must be open to the drain. Loading the sample with an external pressure is carried out when the external medium 24 is worn with the supply of the working medium through a drop 23. The iice types are independently independent of one another and are controlled from the central hydropanel 25. The hydraulic device has a positive effect, resulting in reducing the metal consumption of the device, dimensions, required for the device production area. Claims 1. A hydraulic loading device for testing tubular shaped samples under multi-component loading, comprising a power case, coaxially arranged in a certain torque mechanism and an axial force mechanism, and grippers for fastening the sample under investigation, characterized in that to expand technological capabilities and reduce overall dimensions, it is provided with a shaft mounted axially with an axial channel, one end of which is connected with an axial force mechanism and a torque mechanism, and The second end is with a movable gripper, radial holes are made in the body for supplying the working medium, one of which is connected with the axial channel of the rod, the other with the cavity of the body. 2 A device according to claim 1, characterized in that the twisting mechanism of its moment is rotor-shaped and is connected to the central movable rod by means of a shlitsevy connection. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 238845, cl. Q 01 N 3/18, 1969 (prototype)