CN106918537B - Rope water repellency tester and testing method thereof - Google Patents
Rope water repellency tester and testing method thereof Download PDFInfo
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- CN106918537B CN106918537B CN201710223123.5A CN201710223123A CN106918537B CN 106918537 B CN106918537 B CN 106918537B CN 201710223123 A CN201710223123 A CN 201710223123A CN 106918537 B CN106918537 B CN 106918537B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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Abstract
The invention discloses a rope water repellency tester and a testing method thereof, which relate to the field of rope performance testing, and mainly comprise a friction device and a water repellency testing device, wherein the friction device simulates the influence of friction on a rope in the using process, the water repellency testing device performs water repellency testing on the testing rope, and records the water absorption of the testing rope so as to calculate the water absorption of the testing rope and characterize the water repellency of the rope.
Description
Technical Field
The invention relates to the field of rope performance test, in particular to a rope water repellency tester and a testing method thereof.
Background
For general fiber rope products, mechanical performance indexes such as breaking strength and breaking elongation are paid attention to. But the water-repellent performance of the rope is also an important performance index for mountain climbing, rescue, exploration and military rope products. Because the breaking strength and the breaking elongation of the ropes with poor water repellency can be greatly reduced after being soaked by water, the strength reduction of the ropes after being soaked by water and frozen is more serious. In order to provide a relatively good water repellency for mountain climbing, rescue, exploration and military rope products, the rope is usually subjected to a water repellent finish during the production of such products. Water-repellent (water-repellent) finishing refers to a coating treatment of the rope with a chemical water repellent to reduce the surface tension of the fibers so that water droplets cannot wet the fiber surfaces. At present, the representation of the water repellency of a rope product is lacking in an effective testing device and testing method, and the water repellency finishing effect of the rope cannot be evaluated.
Disclosure of Invention
In order to solve the technical problems, the invention provides the rope water repellency tester and the testing method thereof, and the rope friction equipment and the water repellency testing equipment are designed according to the conditions of the rope in the using process, so that the rope water repellency tester is simple in structure, convenient to operate, high in testing efficiency and accurate and reliable in testing result.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a rope water repellency capability test appearance, includes friction device and testing arrangement two parts are constituteed, friction device includes base, friction channel and weight-bearing, the friction channel is fixed to be set up on the base, the friction channel outside sets up four fixed plates and three fly leaf, form the three crack that the contained angle is 120 between the four fixed plates, three fly leaf radially set up in three crack to can lock fixedly, when three fly leaf locking time the friction channel does not bear external force, when the test rope carries out friction treatment, the position of three fly leaf is fixed respectively and is set up weight-bearing, exerts pressure to the test rope through friction channel; the testing device comprises a testing base, a water pump and a water flow control panel, wherein the water flow control panel and the water pump are fixedly arranged on the testing base, the included angle between the water flow control panel and the plane of the testing base is 30 degrees, a fixing groove is formed in the water flow control panel and used for fixing a testing rope, and a water outlet pipe of the water pump is connected with the fixing groove.
The weight of the friction device is set to be 5Kg.
The inner diameter of a friction channel of the friction device is 10-13mm, and the length of the friction channel is set to be 50-90 mm.
The water flow speed in the water flow control panel of the testing device is 1-3L/min.
A testing method of a rope water repellency tester is realized by the following steps:
1) Friction treatment: taking a test rope, respectively making a mark at the position 20-30cm away from the two ends of the test rope, manually separating the test rope from a locking position through a friction channel 3, respectively hanging weight weights at the tail end positions of the three movable plates to enable the test rope to be in a stressed state, respectively pulling the test rope back and forth for 10-20 times, wherein the pulling speed is 0.5+/-0.2 m/s, respectively making two new marks at the position 20-30cm away from the middle position of the test rope, cutting the test rope from the two new marks by using a rope cloth hot cutter, cutting the two ends of the test rope flush, keeping the length of a rope sample at 400-600mm, and then placing the rope sample in an electronic balance for weighing, wherein the weight is accurate to 0.1g;
2) Water repellency test: when the test starts, a weighed test rope is fixed in a fixed groove, a power supply is turned on, a water pump is turned on, the water flow is controlled to be 1-3L/min, after 800-1000s of water flows through the rope, a water flow switch is turned off, a switch of the fixed groove is turned on, the rope is placed for 1min and then manually rotated for 45 degrees, the rope is placed for 1min, then manually rotated for 45 degrees and then placed for 1min, 3 rope placement operations are sequentially repeated, water clamped by the test rope flows out automatically, the electronic balance is used for weighing, the weight of the test rope at the moment is recorded, and the weight of the test rope is accurate to 0.1g;
3) Calculating the water content: w= (Ww-Wd)/Wd is 100%, where W: rope water content; ww: wet weight of rope; wd: the smaller the rope dry weight, the smaller W, indicating the better water repellency of the rope.
The invention mainly comprises two parts of the friction device and the water-repellent test device, the friction device simulates the influence of friction on the rope in the use process, the water-repellent test device performs water-repellent test on the test rope, the content of water absorbed by the test rope is recorded, so as to calculate the water absorption of the test rope, and the water-repellent performance of the test rope is used for representing the water-repellent performance of the rope, so that the water-repellent finishing effect of the rope is truly and objectively evaluated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of a friction channel;
fig. 3 is a schematic structural view of the fixed plate 31 and the movable plate 32.
Detailed Description
The invention is described in detail below with reference to the attached drawings and the specific embodiments:
as shown in fig. 1-3, the rope water repellency tester comprises a friction device and a testing device, wherein the friction device comprises a base 1, a friction channel 3 and a weight 2, the friction channel 3 is fixedly arranged on the base 1, four fixed plates 31 and three movable plates 32 are arranged on the outer side of the friction channel 3, three cracks with an included angle of 120 degrees are formed between the four fixed plates 31, the three movable plates 32 are radially arranged in the three cracks and can be locked and fixed, the friction channel 3 does not bear external force when the three movable plates 32 are locked and fixed, the weight 2 is fixedly arranged at the positions of the three movable plates 32 respectively when the testing rope is subjected to friction treatment, and pressure is applied to the testing rope passing through the friction channel 3; the testing device comprises a testing base 4, a water pump 5 and a water flow control panel 6, wherein the water flow control panel 6 and the water pump 5 are fixedly arranged on the testing base 4, the plane included angle between the water flow control panel 6 and the testing base 4 is 30 degrees, a fixing groove 7 is formed in the water flow control panel 6 and used for fixing a testing rope, and a water outlet pipe of the water pump 5 is connected with the fixing groove 7.
The weight 2 of the friction device was set to 5Kg.
The inner diameter of the friction channel 3 of the friction device is 10-13mm, and the length is set to be 50-90 mm.
The water flow speed in the water flow control panel 6 of the testing device is 1-3L/min.
A testing method of a rope water repellency tester is realized by the following steps:
1) Friction treatment: taking a test rope, respectively making a mark at the position 20-30cm away from the two ends of the test rope, manually separating the test rope from a locking position through a friction channel 3, respectively hanging weight weights 2 at the tail end positions of the three movable plates 32 to enable the test rope to be in a stressed state, respectively pulling the test rope back and forth for 10-20 times, wherein the pulling speed is 0.5+/-0.2 m/s, respectively making two new marks at the position 20-30cm away from the middle position of the test rope, cutting the test rope from the two new marks by using a rope cloth hot cutter, cutting the two ends of the test rope flush, cutting the two ends of the test rope into a length of 400-600mm, and then placing the test rope sample in an electronic balance for weighing, wherein the weight is accurate to 0.1g;
2) Water repellency test: when the test starts, a weighed test rope is fixed in a fixed groove 7, a power supply is turned on, a water pump 5 is turned on, the water flow is controlled to be 1-3L/min, after 800-1000s of the water flow passes through the rope, a water flow switch is turned off, the switch of the fixed groove 7 is turned on, the rope is placed for 1min and then manually rotated for 45 degrees, the rope is placed for 1min, then manually rotated for 45 degrees and then placed for 1min, 3 rope placing operations are sequentially repeated, water clamped by the test rope flows out automatically, the electronic balance is used for weighing, the weight of the test rope at the moment is recorded, and the weight of the test rope is accurate to 0.1g;
3) Calculating the water content: w= (Ww-Wd)/Wd is 100%, where W: rope water content; ww: wet weight of rope; wd: the smaller the rope dry weight, the smaller W, indicating the better water repellency of the rope.
Example 1:
1. taking a rope sample with the diameter of 1m and the diameter of 10mm, respectively making a mark at the position, 20cm away from the two ends of the sample, passing the rope sample through a rope friction channel 3, hanging weights 2 at the two ends of the rope sample, manually pulling back and forth for 15 times respectively, wherein the pulling speed is 0.5 m/s, and recording the pulling time of the two mark points according to a stopwatch in the pulling process, so that the accuracy of the pulling speed is ensured.
2. Two new marks are respectively made at the position 20cm away from the middle position, a rope cloth hot cutter is used for cutting off the two new marks, the length of a rope sample is 400mm, and then the rope sample is placed in an electronic balance for weighing, so that the weight of the rope sample is 37g.
3. The rope sample weighed in the step 2 is fixed in a water flow control panel 6, a power supply is turned on, a water pump 5 is turned on, the water flow speed is controlled to be 1L/min, and a water flow switch is turned off after 800 seconds of water flow through the rope. The switch for fixing the rope sample was turned on, and the rope was left by hand for 1min and then rotated 45. The placement was continued for 1min and the rope was rotated 45. And then the water is placed for 1min, and the process is repeated for 3 times, so that the water clamped by the rope automatically flows out. The rope sample was weighed with an electronic balance and the weight of the rope sample was 39 grams.
4. The water content of this rope sample was w= (39-37)/37 x 100% = 5.4%.
Example 2
1. Taking a rope sample with the diameter of 1.5m and the diameter of 11mm, respectively making a mark at the position 25cm away from the two ends of the sample, passing the rope sample through a rope friction channel 3, hanging weights 2 at the two ends of the rope sample, manually pulling back and forth for 15 times respectively, wherein the pulling speed is 0.5 m/s, and recording the pulling time of the two mark points according to a stopwatch in the pulling process, so that the accuracy of the pulling speed is ensured.
2. Two new marks are respectively made at the position 25cm away from the middle position, a rope cloth hot cutter is used for cutting off the two new marks, the length of a rope sample is 508mm, and then the rope sample is placed in an electronic balance for weighing, so that the weight of the rope sample is 35g.
3. The rope sample weighed in the step 2 is fixed in a water flow control panel 6, a power supply is turned on, a water pump 5 is turned on, the water flow speed is controlled to be 1.95L/min, and after the rope 903 seconds flows, a water flow switch is turned off. The switch for fixing the rope sample was turned on, and the rope was left by hand for 1min and then rotated 45. The placement was continued for 1min and the rope was rotated 45. And then the water is placed for 1min, and the process is repeated for 3 times, so that the water clamped by the rope automatically flows out. The rope sample was weighed with an electronic balance and the weight of the rope sample was 38 grams.
4. The water content of this rope sample was w= (38-35)/35 x 100% = 8.5%.
Example 3
1. Taking a rope sample with the diameter of 3m and the diameter of 12mm, respectively making a mark at the position of 30cm away from the two ends of the sample, passing the rope sample through a rope friction channel 3, hanging weights 2 at the two ends of the rope sample, manually pulling back and forth for 15 times respectively, wherein the pulling speed is 0.5 m/s, and recording the pulling time of the two mark points according to a stopwatch in the pulling process, thereby ensuring the accuracy of the pulling speed.
2. Two new marks are respectively made at the position 30cm away from the middle position, a rope cloth hot cutter is used for cutting off the two new marks, the length of a rope sample is 600mm, and then the rope sample is placed in an electronic balance for weighing, so that the weight of the rope sample is 40g.
3. The rope sample weighed in the step 2 is fixed in a water flow control panel 6, a power supply is turned on, a water pump 5 is turned on, the water flow speed is controlled to be 2L/min, and after the rope 903 seconds flows, a water flow switch is turned off. The switch for fixing the rope sample was turned on, and the rope was left by hand for 1min and then rotated 45. The placement was continued for 1min and the rope was rotated 45. And then the water is placed for 1min, and the process is repeated for 3 times, so that the water clamped by the rope automatically flows out. The rope sample was weighed with an electronic balance and the weight of the rope sample was 42 grams.
4. The water content of this rope sample was w= (42-40)/40 x 100% = 5%.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.
Claims (5)
1. The utility model provides a rope water repellency capability test appearance, its characterized in that includes friction device and testing arrangement two parts constitution, friction device includes base (1), friction channel (3) and weight (2), friction channel (3) are fixed to be set up on base (1), friction channel (3) outside sets up four fixed plates (31) and three fly leaf (32), form the three crack that the contained angle is 120 between four fixed plates (31), three fly leaf (32) radially set up in three crack to can lock fixedly, when three fly leaf (32) lock fastening friction channel (3) do not bear external force, when testing the rope carries out friction treatment, the position of three fly leaf (32) is fixed respectively and is set up weight (2), exert pressure to the test rope through friction channel (3); the testing device comprises a testing base (4), a water pump (5) and a water flow control panel (6), wherein the water flow control panel (6) and the water pump (5) are fixedly arranged on the testing base (4), the plane included angle between the water flow control panel (6) and the testing base (4) is 30 degrees, a fixing groove (7) is formed in the water flow control panel (6) and used for fixing a testing rope, and a water outlet pipe of the water pump (5) is connected with the fixing groove (7).
2. Rope water repellency tester according to claim 1, characterized in that the weight (2) of the friction means is set to 5Kg.
3. A rope water repellency tester according to claim 1, characterized in that the friction channel (3) of the friction means has an inner diameter of 10-13mm and a length of 50-90 mm.
4. Rope water repellency tester according to claim 1, characterized in that the water flow speed in the water flow control panel (6) of the testing device is 1-3L/min.
5. The test method of a rope water repellency tester according to claim 1, characterized by the steps of:
1) Friction treatment: taking a test rope, respectively making a mark at the position 20-30cm away from the two ends of the test rope, manually separating the test rope from a locking position through a friction channel 3, respectively hanging weight weights (2) at the tail end positions of the three movable plates (32), enabling the test rope to be in a stress state, respectively pulling the test rope back and forth for 10-20 times, wherein the pulling speed is 0.5+/-0.2 m/s, respectively making two new marks at the position 20-30cm away from the middle position of the test rope, cutting the test rope from the two new marks by using a rope cloth hot cutter, cutting the two ends of the test rope in a flush manner, enabling the length of a rope sample to be 400-600mm, and then placing the rope sample in an electronic balance for weighing, wherein the weight is accurate to 0.1g;
2) Water repellency test: when the test starts, a weighed test rope is fixed in a fixed groove (7), a power supply is connected, a water pump (5) is turned on, the water flow is controlled to be 1-3L/min, after 800-1000s of the water flow passes through the rope, a water flow switch is turned off, the switch of the fixed groove (7) is turned on, the rope is placed for 1min and then manually rotated for 45 degrees, the rope is placed for 1min, then manually rotated for 45 degrees and then placed for 1min, 3 times of rope placement operations are sequentially repeated, water clamped by the test rope flows out automatically, the electronic balance is used for weighing, and the weight of the test rope at the moment is recorded and is accurate to 0.1g;
3) Calculating the water content: w= (Ww-Wd)/Wd is 100%, where W: rope water content; ww: wet weight of rope; wd: the smaller the rope dry weight, the smaller W, indicating the better water repellency of the rope.
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| CN201710223123.5A CN106918537B (en) | 2017-04-07 | 2017-04-07 | Rope water repellency tester and testing method thereof |
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| CN106918537B true CN106918537B (en) | 2023-06-27 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2005849A (en) * | 1977-08-23 | 1979-04-25 | Coal Industry Patents Ltd | Rope tension measuring device and speed monitor tester |
| CN103926195A (en) * | 2014-01-22 | 2014-07-16 | 东华大学 | Medical suture friction performance testing apparatus and testing method thereof |
| CN105217467A (en) * | 2011-01-24 | 2016-01-06 | 比伯拉赫利勃海尔-部件股份有限公司 | For identifying the equipment of the state of scrapping of the fibrecord used in weight-lifting equipment |
| CN105445130A (en) * | 2015-12-04 | 2016-03-30 | 山东鲁普科技有限公司 | Rope, net, wire and belt abrasion resistance testing device |
| CN205607833U (en) * | 2016-03-22 | 2016-09-28 | 泰安鲁普耐特塑料有限公司 | Rope core -skin slip tester |
| CN206756642U (en) * | 2017-04-07 | 2017-12-15 | 鲁普耐特集团有限公司 | A kind of rope water repellency tester |
-
2017
- 2017-04-07 CN CN201710223123.5A patent/CN106918537B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2005849A (en) * | 1977-08-23 | 1979-04-25 | Coal Industry Patents Ltd | Rope tension measuring device and speed monitor tester |
| CN105217467A (en) * | 2011-01-24 | 2016-01-06 | 比伯拉赫利勃海尔-部件股份有限公司 | For identifying the equipment of the state of scrapping of the fibrecord used in weight-lifting equipment |
| CN103926195A (en) * | 2014-01-22 | 2014-07-16 | 东华大学 | Medical suture friction performance testing apparatus and testing method thereof |
| CN105445130A (en) * | 2015-12-04 | 2016-03-30 | 山东鲁普科技有限公司 | Rope, net, wire and belt abrasion resistance testing device |
| CN205607833U (en) * | 2016-03-22 | 2016-09-28 | 泰安鲁普耐特塑料有限公司 | Rope core -skin slip tester |
| CN206756642U (en) * | 2017-04-07 | 2017-12-15 | 鲁普耐特集团有限公司 | A kind of rope water repellency tester |
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