CN112666006A - Hose bending dynamometer, hose bending dynamometer system and hose flexibility measuring method - Google Patents
Hose bending dynamometer, hose bending dynamometer system and hose flexibility measuring method Download PDFInfo
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Abstract
The invention discloses a hose bending dynamometer, which belongs to the technical field of hose detection, can quantify the softness of a hose, can compare the softness with each other, judges the softness of the hose from numerical values, and is beneficial to improving the detection level of the hose so as to improve the production level of the hose, and comprises a slide rail, a tensile machine and a bracket, wherein the bracket is connected with the slide rail in a sliding manner, and the tensile machine is arranged on the bracket; a first fixing mechanism is arranged beside the end part of the sliding rail, a second fixing mechanism is installed on the bracket, and the first fixing mechanism and the second fixing mechanism can be detachably connected with two ends of the hose; the measuring end of the tensile machine is abutted against the second fixing mechanism so as to obtain the force value of the hose.
Description
Technical Field
The invention belongs to the technical field of hose detection, and particularly relates to a hose bending dynamometer, a hose bending dynamometer system and a hose softness measuring method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The rubber hose is widely applied to mine hydraulic supports and oil field exploitation, and is suitable for the fields of engineering construction, hoisting transportation, mining equipment, ships, mechanized and automatic hydraulic systems of various industrial departments and the like. Gas and the like and liquid with certain pressure and temperature are conveyed for hydraulic transmission. Is one of the indispensable hydraulic transmission elements.
The inventor finds that the requirements on rubber tubes are higher and higher at present, and the trend of industry development is light weight, high pressure, small bending radius and the like. Some equipment installation space is narrow and small, requires that the rubber hose is softer, has less bend radius.
In the current industry standards and prior art documents, there are standards for testing the softness of rubber hoses when a torque is applied and related devices, and there is also a device for observing the minimum radius of a rubber hose, but it is not possible to quantify the softness of a rubber hose at the minimum radius. The inventor therefore believes that there is no softness testing apparatus and testing standard within the industry.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hose bending dynamometer and a system for specially measuring the softness of a hose and a hose softness measuring method, which can quantify the softness of the hose, can compare the softness of the hose with each other, judge the softness of the rubber hose from a numerical value, are favorable for improving the detection level of the rubber hose and further improve the production level of the rubber hose.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the technical scheme of the invention provides a hose bending dynamometer, which comprises a slide rail, a tensile machine and a bracket, wherein the bracket is connected with the slide rail in a sliding manner, and the tensile machine is arranged on the bracket; a first fixing mechanism is arranged beside the end part of the sliding rail, a second fixing mechanism is installed on the bracket, and the first fixing mechanism and the second fixing mechanism can be detachably connected with two ends of the hose; the measuring end of the tensile machine is abutted against the second fixing mechanism so as to obtain the force value of the hose.
In a second aspect, the technical solution of the present invention further provides a hose bending force measuring system, including the hose bending force measuring instrument according to the first aspect, and further including a server, where the tensile machine and the server can communicate with each other;
the server is configured to collect and compare data collected by the plurality of hose bend load cells.
In a third aspect, the present invention further provides a method for measuring softness of a hose, using the hose bending load cell according to the first aspect, including the following steps:
the rubber hose to be tested is cut to a set length, one end of the rubber hose is installed on the first fixing mechanism, and the other end of the rubber hose is installed on the second fixing mechanism;
pushing the tensile machine, stopping pushing when the minimum bending radius of the rubber tube is reached, fixing the bracket at the position, and starting reading when the numerical value of the tensile machine is stable;
the numerical value displayed by the tensile machine is the bending force of the rubber tube;
the reading is recorded and the test is complete.
The technical scheme of the invention has the following beneficial effects:
1) according to the dynamometer disclosed by the invention, the softness of the hose is reflected by the force value of the tensile machine through the bending force applied by bending the rubber hose to the fixed bending radius, so that the softness is reflected by the force value, and the softness can be quantitatively compared;
2) the steel-open dynamometer disclosed by the invention is simple in overall structure and convenient to use, and can quickly compare data; the device has very important significance for auxiliary research on the structural design of the rubber hose, and is a very convenient and fast tool.
3) The invention uses a specific numerical value to reflect the softness of the hose, and the tensile machine is a common machine at present, can accurately and quantitatively reflect the strength value of the hose when the hose is bent, and can also be output to a server for recording and sequencing so as to grade different products.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic front view of the present invention according to one or more embodiments;
FIG. 2 is a schematic top view of the present invention according to one or more embodiments.
In the figure: 1. the device comprises a base, 2, a bracket, 3, a second fixing mechanism, 4, a first fixing mechanism, 5, a handle, 6, a rubber hose, 7, a sliding rail, 8, a press machine, 9, a mounting groove, 11, a pointer, 12 and a graduated scale.
The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the present invention provides a flexible pipe bending force measuring instrument, a flexible pipe bending force measuring system and a flexible pipe flexibility measuring method for measuring flexibility of flexible pipes, which can quantify the flexibility of the flexible pipes, compare the flexibility with each other and numerically determine the flexibility of the flexible pipes.
Example 1
In a typical embodiment of the present invention, the embodiment discloses a hose bending dynamometer, which includes a base 1, a slide rail 7, a scale 12, a first fixing mechanism 4, a second fixing mechanism 3, an electronic tensile machine 8 and a bracket 2, wherein the specific connection relationship is that, on the base 1, the slide rail 7 and the scale 12 are arranged, wherein the slide rail 7 and the scale 12 are both parallel to the top surface of the base 1; a first fixing mechanism 4 is fixedly connected to the base 1 beside one end of the sliding rail 7, a bracket 2 is further arranged on the sliding rail 7, a second fixing mechanism 3 is arranged on the bracket 2, and an electronic tensile machine 8 is installed on the bracket 2, so that the tensile machine 8 can freely move on the sliding rail 7; the measuring end of the tensile machine 8 acts on the second fixing mechanism 3, a pointer 11 is arranged at the center line position of the second fixing mechanism 3, the pointer 11 is located on one side of the graduated scale 12, the pointer 11 can mark a reading on the graduated scale 12, the graduated scale 12 is fixed beside the sliding rail 7, the center line of the first fixing mechanism 4 faces the 0-scale line of the graduated scale 12, and it can be understood that the reading marked on the graduated scale 12 by the pointer 11 connected with the second fixing mechanism 3 indicates the proper distance between the two fixing mechanisms.
The device disclosed in this example is used to test the softness of the rubber hose 6, which is defined in this example as the softness of the rubber hose 6 as read by the tensile machine 8 at the minimum bending radius of the rubber hose. Therefore, the tensile machine 8 in the present embodiment is a measurement component of the entire apparatus, and the scale is only a reference when measuring the minimum bending radius of the rubber tube.
It is understood that the tensile machine 8 in this embodiment is a universal tensile machine 8 with a delicate structure, which can plastically deform a test member by applying a strong pressure to the test member, and can display the pressure value applied by the test member in the process.
In this embodiment, the tensile machine 8 is an electronic tensile machine 8 capable of testing the compressive force, and the reading thereof can be displayed by a display and also output to a server for recording. The rubber hose bending device is provided with a measuring end for applying pressure, the measuring end of the rubber hose bending device is abutted against the second fixing mechanism 3, and the rubber hose bending device bends the rubber hose 6 fixed between the first rubber hose mechanism and the second rubber hose mechanism by applying pressure to the second rubber hose mechanism.
Further, the first fixing means 4 is a bolt, and the second fixing means 3 is a bolt.
The bolts used by the first fixing mechanism 4 and the second fixing mechanism 3 are bolts matched with threads at two ends of the rubber hose 6.
Furthermore, the electronic tensile machine 8 is slidably connected to the slide rail 7 through the bracket 2, the measuring end of the electronic tensile machine 8 abuts against the second fixing mechanism 3, and the direction of the power output by the measuring end of the electronic tensile machine 8 is parallel to the slide rail 7.
It can be understood that the measurement end of the conventional electronic tensile machine 8 is usually up and down, and the base of the conventional electronic tensile machine 8 cannot be directly fixed on the bracket 2, the bracket 2 adopted in the embodiment comprises a sliding connection part for fixedly connecting the base of the electronic tensile machine 8 and the bracket of the electronic tensile machine 8, and the electronic tensile machine 8 is transversely arranged after the electronic tensile machine 8 is installed on the bracket 2.
Furthermore, the top of the bracket 2 is provided with two mounting parts which are respectively used for slidably connecting the base of the electronic tensile machine 8 and the bracket of the electronic tensile machine 8.
More specifically, foretell two installation departments are first mounting groove and second mounting groove respectively, installation electron pulling force machine 8 bases in the first mounting groove, installation electron pulling force machine 8 supports in the second mounting groove. It can be understood that the base of the electronic tensile machine 8 and the bracket of the electronic tensile machine 8 can slide in the mounting groove 9.
The base of the bracket 2 in the embodiment also has the function of a sliding block, the bottom of the bracket 2 is matched with a sliding rail, and the shape of the bottom of the bracket 2 is matched with that of the sliding rail.
Furthermore, the bracket 2 is provided with a fixing bolt, and the bracket 2 can be fixed on a certain position of the slide rail 7 through the fixing bolt.
More specifically, in order to cooperate with the fixing bolt, the bracket 2 is provided with a through screw hole, and the fixing bolt passes through the through screw hole and then directly contacts the sliding rail 7 so as to avoid fixing the bracket 2 on the sliding rail 7. The side of bracket 2 is located to the screw that runs through, and fixing bolt is on a parallel with the top surface of slide rail 7, thereby the fixed Luochuan exerts horizontal power and the position of fixed bracket 2.
Further, the fixing bolt is a shoe-shaped gold ingot bolt so as to be convenient for screwing by hand.
More specifically, the electronic tensile machine 8 in this embodiment is provided with a push-pull handle 5, and the handle 5 is pushed by hand during testing. After the rubber hose 6 is installed, the handle 5 is pushed to bend the rubber hose 6, and the measuring end of the tensile machine 8 has an acting force to push the rubber hose 6 so as to bend the rubber hose 6. The rubber hose 6 has a reaction force acting on the lower end of the pulling machine 8, and the pulling machine 8 displays the value of the force with which the hose is bent, which is referred to as the bending force in this embodiment.
Example 2
In an exemplary embodiment of the present invention, the present embodiment discloses a method for measuring softness of a hose, which uses the hose bending force measuring apparatus as described in embodiment 1, and the method includes the following steps:
the rubber hose 6 to be tested is cut to a fixed length, the length is in accordance with the requirement of pulse testing length, one end of the rubber hose is arranged on the first fixing mechanism 4, and the other end of the rubber hose is arranged on the second fixing mechanism 3;
the handle 5 is pushed by hand, when the pointer 11 indicates that the minimum bending radius of the rubber tube is 2 times, the pushing is stopped, the shoe-shaped bolt is screwed, the bracket 2 is fixed at the position, and the reading is started when the numerical value of the tensile machine 8 is stable;
the numerical value displayed by the tensile machine 8 is the bending force of the rubber tube;
the reading is recorded and the test is complete.
The requirements of the intercepting length of the rubber hose 6 and the distance between the two fixed ends can refer to table 1, and different products can be compared after the structural formula is changed, or products of different manufacturers can be used for transverse comparison. The same length is cut and pushed the same distance for lateral comparison, which product is softer.
In this embodiment, the softness of rubber tube is reflected through the power value, makes the size of softness through the power value embody, lets softness quantify the comparison, embodies hose softness through the bending force of bending flexible hose 6 to fixed bending radius, has very important meaning to the structural design of auxiliary research flexible hose 6, is a very convenient and fast's instrument.
TABLE 1 test of bending force of rubber hose 6, length of cut and specification of fixed end distance
| Specification of | Minimum bend radius r | Length of cut | Distance between fixed ends |
| 6 | 100 | 414 | 200 |
| 8 | 115 | 461 | 230 |
| 10 | 130 | 508 | 260 |
| 13 | 180 | 665 | 360 |
| 16 | 200 | 728 | 400 |
| 19 | 240 | 854 | 480 |
| 25 | 300 | 1042 | 600 |
| 32 | 420 | 1419 | 840 |
| 38 | 500 | 1670 | 1000 |
| 51 | 630 | 2078 | 1260 |
Example 3
In an exemplary implementation manner of the present invention, this embodiment discloses a hose bending force measurement system, which includes the hose bending force measurement instrument described in embodiment 1, and further includes a server, where the electronic tensile machine 8 is in communication with the server.
It should be understood that the server in this embodiment may be a general x86 server, or may be a personal computer, a tablet computer, or the like, and the server is configured to record the bending information acquired by the hose bending load cell.
More specifically, in this embodiment, the server is configured to collect and compare data collected by the plurality of hose bend load cells.
For example, the data collected by the hose bending load cell includes a1, a2, A3 and a4, and the server numbers a1, a2, A3 and a4, compares the sizes, and finally outputs the numbers in the order from large to small.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hose bending dynamometer is characterized by comprising a slide rail, a tensile machine and a bracket, wherein the bracket is connected with the slide rail in a sliding manner, and the tensile machine is arranged on the bracket; a first fixing mechanism is arranged beside the end part of the sliding rail, a second fixing mechanism is installed on the bracket, and the first fixing mechanism and the second fixing mechanism can be detachably connected with two ends of the hose; the measuring end of the tensile machine is abutted against the second fixing mechanism so as to obtain the force value of the hose.
2. The hose bend load cell of claim 1, wherein the rail is mounted to a top surface of the base, the top surface of the base further mounting a scale, the scale being parallel to the rail; first fixed establishment fixed connection is in the base top surface, and the zero scale position of scale is just to first fixed establishment's geometric centre point.
3. The hose bend load cell of claim 2, wherein a pointer is attached at the geometric center of the second attachment mechanism, the pointer pointing perpendicularly to the scale to indicate the scale on the scale.
4. The hose bend load cell of claim 1, wherein the tensile machine is slidingly coupled to the bracket.
5. The hose bend load cell of claim 1, wherein the direction of force applied to the test end of the tensile machine is parallel to the rail.
6. The hose bend load cell of claim 1, wherein the bracket further mounts a fastener that can extend through the bracket and connect to the rail to secure the bracket to the rail.
7. The hose bend load cell of claim 1, wherein the tensile machine is provided with a push-pull handle to push the tensile machine and carriage to move.
8. The hose bend load cell of claim 1, wherein the first and second securing mechanisms are each nuts.
9. A hose bend force measurement system comprising a hose bend force meter according to any one of claims 1 to 8, and further comprising a server, the tensile machine being communicable with the server;
the server is configured to collect and compare data collected by the plurality of hose bend load cells.
10. A hose softness measurement method using the hose bending load cell according to any one of claims 1 to 8, comprising the steps of:
the rubber hose to be tested is cut to a set length, one end of the rubber hose is installed on the first fixing mechanism, and the other end of the rubber hose is installed on the second fixing mechanism;
pushing the tensile machine, stopping pushing when the minimum bending radius of the rubber tube is reached, fixing the bracket at the position, and starting reading when the numerical value of the tensile machine is stable;
the numerical value displayed by the tensile machine is the bending force of the rubber tube;
the reading is recorded and the test is complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110076543.1A CN112666006A (en) | 2021-01-20 | 2021-01-20 | Hose bending dynamometer, hose bending dynamometer system and hose flexibility measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110076543.1A CN112666006A (en) | 2021-01-20 | 2021-01-20 | Hose bending dynamometer, hose bending dynamometer system and hose flexibility measuring method |
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| CN112666006A true CN112666006A (en) | 2021-04-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509333A (en) * | 2021-12-29 | 2022-05-17 | 中国航空工业集团公司西安飞机设计研究所 | Hydraulic pulse test fixture for aviation rubber steel wire braided hose |
| US20220341828A1 (en) * | 2019-09-04 | 2022-10-27 | Danfoss Power Solutions Ii Technology A/S | Bend test apparatus for a hydraulic hose |
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| CN210571697U (en) * | 2019-09-07 | 2020-05-19 | 青岛威尔驰液压科技有限公司 | Rubber tube assembly pressure test equipment free of threaded connection |
| CN212207031U (en) * | 2020-04-16 | 2020-12-22 | 中汽检测技术有限公司 | Flexible pipe bending and fixing device |
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2021
- 2021-01-20 CN CN202110076543.1A patent/CN112666006A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220341828A1 (en) * | 2019-09-04 | 2022-10-27 | Danfoss Power Solutions Ii Technology A/S | Bend test apparatus for a hydraulic hose |
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