CN204314158U - Cable hut torsion tester - Google Patents

Abstract

The utility model relates to a torsion testing machine for a cable junction box, which comprises a base, a main body frame, a beam, a slider, a pulley, a heavy load, a pulley, a steel cable and a jack, and a clamp for fixing a sample to be tested is installed on the base , a main frame is installed above the base, and cross beams are installed horizontally and horizontally on both sides of the corresponding main frame above the base; The middle part is connected to the longitudinal thread screw installed on the upper part of the main frame to drive and adjust, and the beam moves up and down along the guide rail made on the inside of the main frame; There is a scale scale for measurement. The crossbeam and the pulley of the utility model adopt an adjustable design, which avoids the decomposition of the force, makes the force application more accurate, and the error range is within 0.5%, and the data of the deformation of the shell can be accurately measured by moving the scale.

Description

Cable junction box torque testing machine

technical field

The utility model belongs to the detection field of a cable junction box, and relates to an electromechanical product for detecting the torsion resistance state of a housing, in particular to a cable junction box torsion testing machine.

Background technique

At present, the existing shell torsion resistance test equipment and test methods are relatively primitive, consisting of simple columns, pulleys, heavy loads, etc. During the test, place the shell sample in an area where it can be fixed, and apply force to the shell from two directions through weights, steel cables, pulleys, heavy loads, etc. However, this method is not very applicable, and the test process is time-consuming and laborious. It cannot guarantee the safety of the test personnel and the accuracy of the test.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a cable junction box torque testing machine which is easy to operate, safe and accurate.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A cable junction box torsion testing machine, characterized in that it includes a base, a main body frame, a beam, a slider, a pulley, a heavy load, a pulley, a steel cable and a jack, and a fixture for fixing a sample to be tested is installed on the base , the main frame is installed above the base, and cross beams are installed horizontally and horizontally on the front and rear sides of the corresponding main frame above the base; It is connected and installed on the upper part of the main frame, and the beam is driven and adjusted by the threaded screw to move up and down along the guide rail made inside the main frame; there are two upper and lower beams, and a slider is installed on the two beams to slide horizontally, at the end of the beam Pulleys are installed, the slider is connected with a steel cable and the steel cable bypasses the pulley and is connected with a heavy load in the vertical direction. The directions of the steel cables connected to the sliders on the upper and lower beams are opposite. The lower ends of the weights are all supported and installed with a jack, and a scale scale for measurement is formed at the slide block.

Moreover, a plurality of rolling bearings are installed at the lower end of the base, and the sample is sent to a designated test position in the main frame through a pull-out design; four clamps that can be adjusted with threads are installed on the base.

Advantage and positive effect of the present utility model are:

1. The testing machine is welded with square steel, steel pipe and other materials, which effectively ensures the strength of the equipment and makes the test process safer and more reliable.

2. The beam of this testing machine can be adjusted up and down, the pulley can be adjusted left and right on the beam through the long groove and the use of linear guide rails and sliders at the block makes the equipment have a wider range of application. Compared with the previous The equipment can only be used for the detection of small and regular-shaped samples. This equipment can meet the test requirements of samples of different sizes and shapes.

3. The operation of this testing machine is more flexible and convenient, efficient and labor-saving. The number of test personnel has been reduced from 3 to 2, and the test time has been shortened from 2 to 3 hours to about 30 minutes.

4. The beams and pulleys of the utility model adopt adjustable design, which avoids the decomposition of the force, makes the force application more accurate, and the error range is within 0.5%, and the data of the deformation of the shell can be accurately measured by moving the scale.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the right side view of Fig. 1 .

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

A cable junction box torque testing machine, including a base 9, a main frame 1, a beam 2, a slider 3, a pulley 6, a heavy load 7, a pulley 6, a steel cable 5, and a jack 8, which are installed on the base for fixing For the fixture of the tested sample 4, a main frame is installed above the base, and cross beams are installed horizontally and horizontally on both sides of the front and rear sides of the corresponding main frame above the base;

In order to be suitable for measuring cable box samples of different sizes, the crossbeam adopts an up-and-down oriented longitudinal adjustment structure. Specifically, the middle parts of both ends of the crossbeam on both sides are connected and installed on the longitudinal threaded screw 10 on the upper part of the main frame. The threaded screw is driven and adjusted, and the beam moves up and down along the guide rail made on the inside of the main frame;

In order to adjust horizontally, there are two beams up and down. A slider is installed on the two beams to slide horizontally. Pulleys are installed at the ends of the beam. The slider is connected with a steel cable and the steel cable is connected vertically around the pulley. There is a heavy load 7, and the direction of the steel cables connected to the sliders on the upper and lower beams is opposite, so that the sliders slide relatively. The heavy load of this embodiment adopts 100kg weights, and the weights on both sides The lower end is supported by a jack, which can firmly clamp the slider on the frame of the sample to be tested to achieve the purpose of twisting the shell. There is a scale for measurement on the slider, which can correct the deformation of the shell sample after the force is applied. quantity for accurate measurement.

In order to facilitate the placement of the samples to be tested, multiple rolling bearings are installed at the lower end of the base, and the samples are sent to the designated test position in the main frame through the pull-out design; four clamps that can be adjusted with threads are installed on the base to prevent Movement of the sample position.

Through the above-mentioned longitudinal adjustment structure and slider horizontal adjustment structure, the direction of the force can be kept consistent, and the decomposition of the force can be avoided, so as to ensure the accuracy of the force.

The steps of the test are as follows:

⑴ Place the sample to be tested on the base, adjust the clamps on the base to fix the sample;

⑵Adjust the height position of the crossbeam according to the height of the sample to be tested, so that the slider corresponds to the position that can be fastened to the top frame of the sample;

(3) Adjust the slider, pulley and heavy load parts so that the slider, pulley and heavy load are perpendicular to each other;

⑷Use a jack to raise the weight, adjust the steel cable to a suitable length, lock the jack, and make sure that the slider is firmly stuck on the shell frame of the tested sample;

(5) Loosen the jack on both sides at the same time and lower the weight. At this time, both sides of the sample bear a torque of 1000N at the same time, and start timing for 30s. Read and record the deformation of the tested sample during the test;

⑹ The jacks on both sides raise the weight at the same time, then read and record the frame deformation data of the tested sample at this time, and return the equipment and the test sample to their original positions after the measurement is completed.

Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications can be made without departing from the spirit and scope of the utility model and the appended claims. It is possible, therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (2)

1. a cable hut torsion tester, it is characterized in that: comprise base, main body frame, crossbeam, slide block, pulley, weight load, pulley, wirerope and lifting jack, base is installed the fixture being used for fixing tested sample, be provided with main body frame above this base, the equal horizontal cross of main body frame front and rear sides corresponding above base is provided with crossbeam;

This crossbeam adopts longitudinal adjustment structure of upper and lower guiding, and the two ends being specially the crossbeam of both sides are all mounted on main body frame top, and crossbeam is driven by threaded screw rod and regulates guide rail made inside main body frame to move up and down; Crossbeam is upper and lower two, on these two crossbeams, equal horizontal slip is provided with a slide block, all pulley is installed in the end of crossbeam, this slide block is connected with wirerope and wirerope is walked around pulley and is connected with weight load in the vertical direction, slide block on described upper and lower two crossbeams to connect the direction of wirerope contrary, the counterweight lower end of both sides all supports and is provided with lifting jack, and slide block place is shaped with the graduated scale for measuring.

2. cable hut torsion tester according to claim 1, is characterized in that: described base lower end is provided with multiple rolling bearing, sample is sent into the testing position of specifying in main body frame by the design of drawing and pulling type; Base installs four fixtures by threaded adjustment.