CN202511935U - Tension determination device for steel wire rope - Google Patents

Abstract

The utility model relates to a steel wire rope tension measuring device, comprising an adjusting roller and a fixed roller arranged at the same height on both sides of the adjusting roller, characterized in that: the adjusting roller and the two fixed rollers are located on the same longitudinal plane; The roller is connected with the upper end of the support guide rod through the pin, the lower end of the support guide rod is inserted into the guide hole of the adjustment rod through the spring, and the lower end of the spring is fixed at the bottom of the guide hole. This device is easy to operate and does not damage the wire rope. , and can meet the tension measurement equipment for tension measurement of steel wire ropes of any diameter at any position.

Description

Wire rope tension measuring device

technical field

The utility model relates to a steel wire rope tension measuring device.

Background technique

At present, although there is a device for measuring the tension of the fiber on the loom, the measurement range is limited after all, and the tension measurement of the steel wire rope with large tension cannot be performed. There is no instrument that can measure the real-time dynamic tension of the steel wire rope in the working state. If a dynamometer is connected in series to the steel wire rope, the integrity of the steel wire rope will inevitably be destroyed, and the elasticity of the dynamometer itself will also affect the tension of the steel wire rope. And the position that is installed in the steel wire rope is fixed, can't realize the tension force of steel wire rope measured in good time at any position. At present, the tension of steel wire ropes is mostly obtained through related calculations based on the theory of suspension cables. There are many approximate assumptions in the suspension cable theory itself, and many actual parameters such as horizontal span must be measured, and there are certain errors in the measurement process. Therefore, there must be certain errors between the calculation results and the actual results.

Contents of the invention

The purpose of the utility model is to provide a steel wire rope tension measuring device, which is a kind of tension measuring equipment that is easy to operate, does not damage the steel wire rope, and can meet the tension measurement of any diameter steel wire rope at any position.

The utility model is characterized in that: a wire rope tension measuring device, comprising an adjusting roller and a fixed roller arranged at the same height on both sides of the adjusting roller, characterized in that: the adjusting roller and the two fixed rollers are located on the same longitudinal plane; The adjustment roller is connected with the upper end of the support guide rod through a pin, the lower end of the support guide rod is inserted into the guide hole of the adjustment rod through a spring, and the lower end of the spring is fixed at the bottom of the guide hole.

Further, the lower end of the support guide rod is provided with a protrusion, and the upper opening of the guide hole of the adjustment rod is provided with a stopper for preventing the support guide rod and the spring from detaching from the guide hole.

Further, the highest end of the above-mentioned adjusting roller is higher than the lowest end of the fixed roller and lower than the highest end of the fixed roller.

Further, the lower end of the adjustment rod is provided with an external thread for screwing with the middle part of a supporting substrate, and the fixed rollers are fixed on both sides of the supporting substrate through the supporting frame.

Further, a scale is provided on the adjustment rod.

Further, scales are provided on the above-mentioned support guide rods.

Advantage of the utility model:

1) Maintain the integrity of the wire rope during tension measurement without damage to the wire rope;

2) It is not affected by the installation method and conditions of the wire rope, and can measure the tension of the wire rope at any position in a timely manner;

3) It does not affect the normal operation of the wire rope;

4) By changing the diameter and spacing of the three wheels of the dynamometer, the tension measurement of the wire rope with a larger diameter range can be realized;

5) The measuring range can be changed by changing the model of the force measuring spring, which is suitable for the tension measurement of all flexible cables including steel wire ropes;

6) The operation is simple and easy, and the production cost is low.

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of the utility model.

Fig. 2 is a schematic diagram of the structure of the second embodiment of the utility model.

Fig. 3 is a schematic structural view of Embodiment 3 of the present utility model.

Fig. 4 is a schematic diagram of the structure of the roller in the embodiment of the present invention.

In the figure: 1 is the adjustment roller; 2 is the fixed roller; 3 is the pin; 4 is the support guide rod; 5 is the spring; 6 is the adjustment rod; 7 is the support substrate; 8 is the support frame; 9 is the scale; 41 is the bump ; 61 is a guide hole; 62 is a block; A is a wire rope; B is an annular channel; C is a rope; D is a nut.

Detailed ways

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

Referring to the legend, a wire rope tension measuring device includes an adjusting roller 1 and a fixed roller 2 arranged at the same height on both sides of the adjusting roller 1, and is characterized in that the adjusting roller 1 and the two fixed rollers 2 are located on the same longitudinal plane The adjustment roller 1 is connected with the upper end of the support guide rod 4 through the pin 3, the lower end of the support guide rod 4 is inserted into the guide hole 61 of the adjustment rod 6 through the spring 5, and the lower end of the spring 5 is fixed in the guide hole 61 bottom.

The lower end of the support guide rod 4 is provided with a protrusion 41 , and the upper opening of the guide hole 61 of the adjustment rod is provided with a stopper 62 for preventing the support guide rod 4 and the spring 5 from detaching from the guide hole 61 .

The highest end of the above-mentioned adjusting roller 1 is higher than the lowest end of the fixed roller 2 and lower than the highest end of the fixed roller 2 .

The lower end of the adjustment rod 6 is provided with an external thread for screwing with the middle of a support base plate 7 , and the fixed roller 2 is fixed on both sides of the support base plate 7 via a support frame 8 .

A scale 9 is arranged on the above-mentioned adjusting rod 6 .

A scale 9 is provided on the above-mentioned support guide rod 4 .

In the specific use of the utility model, it is necessary to ensure that the support guide rod can freely move up and down in the guide hole without any contact with the inner wall of the guide hole or fully lubricate the inner wall, so as to eliminate the occurrence of friction with the inner wall of the guide hole. The impact of the frictional force will lead to inaccurate measurement results and too many errors.

The utility model can meet the tension measurement of different types of steel wire ropes by replacing rollers with different radii, spring models and adjusting wheel spacing.

The utility model can have the following embodiments in preventing the use of the support guide rod and the spring from breaking away from the guide hole:

Embodiment one:

The stopper can be a cover plate with an internal thread, and an external thread is provided on the outer circumference of the upper end of the adjustment rod, and the cover plate is screwed to the outer circumference of the upper end of the adjustment rod, and a passage for supporting the guide rod to pass is opened on the cover plate. hole, and the through hole is slightly larger than the cross section of the guide rod.

Embodiment two:

The stopper can be a stopper protruding from the axis line of the guide hole on the inner wall at the upper end of the guide hole, and it should be set as far as possible to ensure that the force on the support guide rod is even. On the wall of the hole, the bumps are also provided with a matching number, which are also evenly distributed on the support guide rod; when the bumps are ring-shaped, they can be matched with at least two evenly distributed stops; when the stops When the block is ring-shaped, it can cooperate with at least two equally distributed projections. Of course, the mating surfaces of these stoppers and projections are on the same level.

Embodiment three:

In this embodiment, there is no need to set a stopper or a bump, and a rope is directly set in the hollow part of the spring, and the two ends are respectively connected with the bottom of the guide hole and the lower end of the support guide rod. The working length of the rope C is less than or equal to The depth of the pilot hole.

The adjustment rod of the utility model can be made of transparent pipe material, and the scale can be set on the adjustment rod or the support guide rod, as long as the change of the height of the spring after being compressed can be observed.

Working process of the utility model: the steel wire rope tension measuring device snaps into the measured steel wire rope through three rollers (two fixed rollers and one adjusting roller, these three rollers are useful for inserting into the annular channel B of the steel wire rope) to ensure that the steel wire rope is uniform. It is in the annular groove of the three rollers, and try to reduce the friction between the steel wire rope under test and the annular grooves of the three rollers by lubricating as much as possible, and eliminate the measurement error caused by the friction. The movement of the adjustment spring and the adjustment roller is adjusted through the adjustment rod provided with a nut at the lower end, and the spring can move in the guide hole in the adjustment rod. By changing the relative position of the adjusting roller and the fixed rollers on both sides, the steel wire rope is slightly bent, so that the measured steel wire rope A is in a bent state, and the tension of the tested steel wire rope can be read from the scale on the support guide rod or the adjustment rod.

The working principle of the utility model: adjust the adjustment rod through the nut D, change the relative position of the three rollers to make the wire rope slightly bend, and make the wire rope in a bent state. By analyzing the force relationship of the adjustment rollers, it can be known that the adjustment roller is affected by the tension of the wire rope and the spring tension. Balanced by function, calculated by mechanical relationship, and calibrated by calibration experiment, the standard value is calibrated on the scale on the outer wall of the adjustment rod or the support guide rod, and according to the springs of different ranges, the outer wall of the adjustment rod can be calibrated with multiple rows corresponding to the force measurement of different springs Scale, the measured wire rope tension can be read directly according to the scale during measurement.

The above descriptions are only preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the patent scope of the present utility model shall fall within the scope of the present utility model. the

Claims (6)

1. a steel wire rope tension determinator comprises and regulates roller and be located at a fixed idler whell of regulating roller two flanking parts height such as grade that it is characterized in that: said adjusting roller and two fixed idler whells are positioned on the same fore-and-aft plane; Said adjusting roller via pins and support guide rod upper end links, and said support guide rod lower end is inserted in the guide hole of adjuster bar through spring, and said spring bottom is fixed on the guide hole bottom.

2. steel wire rope tension determinator according to claim 1 is characterized in that: said support guide rod bottom is provided with projection, and the guide hole upper shed of said adjuster bar is provided with block and is used to prevent that support guide rod and spring break away from guide hole.

3. steel wire rope tension determinator according to claim 1 is characterized in that: the most significant end of said adjusting roller is higher than the least significant end of fixed idler whell and is lower than the most significant end of fixed idler whell.

4. steel wire rope tension determinator according to claim 1 is characterized in that: said adjuster bar bottom is provided with the external thread that is used for supporting substrate middle part bolt, and said fixed idler whell is fixed on supporting substrate two sides through bracing frame.

5. steel wire rope tension determinator according to claim 1 is characterized in that: said adjuster bar is provided with scale.

6. steel wire rope tension determinator according to claim 1 is characterized in that: said support guide rod is provided with scale.

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