CN114813370A - Power cable pressure-bearing test system and test method - Google Patents
Power cable pressure-bearing test system and test method Download PDFInfo
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- CN114813370A CN114813370A CN202210385066.1A CN202210385066A CN114813370A CN 114813370 A CN114813370 A CN 114813370A CN 202210385066 A CN202210385066 A CN 202210385066A CN 114813370 A CN114813370 A CN 114813370A
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- power cable
- test system
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- bearing test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of cable test equipment, in particular to a pressure bearing test system and a pressure bearing test method for a power cable; the power cable pressure-bearing test system comprises a side box which is rotationally connected with a gear A, and two racks A which slide in the side box and are respectively meshed with the gear A, wherein each rack A is fixedly provided with a clamping plate; the test method comprises the following steps: s1: the vertical rod is pressed downwards, and the two clamping plates approach to each other to apply pressure to the power cable from the upper side and the lower side in a two-way mode to complete pressure testing; s2: the positions of the pinch roller and the vertical rod are adjusted by rotating the lead screw; s3: pressing the pressing wheel downwards to enable the pressing wheel to move the power cable downwards to complete the bending degree test of the power cable bending upwards; s4: the push rod is used for pushing the two connecting rods, so that the two clamping arms clamp the power cable to perform bending test; the bending of the inner core in the cable caused by the pressure test can be avoided.
Description
Technical Field
The invention relates to the technical field of cable test equipment, in particular to a pressure bearing test system and a pressure bearing test method for a power cable.
Background
The cable is an electric energy or signal transmission device, usually comprises several or several groups of wires, usually is a cable similar to a rope formed by twisting one or several groups of wires, each group of wires are insulated from each other and usually twisted around a center, the whole cable is wrapped with a highly-insulated covering layer, the bearing performance of the cable is an important performance of the cable, the service life and the safety of the cable are directly influenced, the bearing performance of the cable refers to the influence of the cable on the electric conductivity of a wire core in the cable under the condition of heavy pressure, and therefore the bearing performance needs to be tested;
when a traditional power cable is subjected to pressure test, the power cable is subjected to pressure test from a single direction, but the inner core inside the cable is easily bent after the test is finished.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a pressure-bearing test system and a pressure-bearing test method for a power cable, which can avoid the bending of an inner core in the cable during pressure test.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a power cable's pressure-bearing test system, is connected with gear A's side case including rotating to and slide in the side case and all with two rack A of gear A meshing, all be fixed with a splint on every rack A.
The device further comprises a hanging plate and a sliding block which are fixed on the side box, and a vertical rod which is fixed on the upper side clamping plate, wherein the vertical rod slides on the hanging plate, and the sliding block is in threaded connection with the screw rod.
The further still including rotating on the base and both sides set up the screwed pivot to and two swivel nuts of threaded connection in pivot both sides, all be fixed with a round cover on every swivel nut, all slide on every round cover and have a supporting wheel.
The method for testing the power cable by adopting the pressure-bearing test system of the power cable comprises the following steps:
s1: the vertical rod is pressed downwards, and the two clamping plates approach to each other to apply pressure to the power cable from the upper side and the lower side in a two-way mode to complete pressure testing;
s2: the positions of the pinch roller and the vertical rod are adjusted by rotating the lead screw;
s3: pressing the pressing wheel downwards to enable the pressing wheel to move the power cable downwards to finish the bending degree test of the upward bending of the power cable;
s4: the push rod is used for pushing the two connecting rods, so that the two clamping arms are used for clamping the power cable to perform bending test.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a test system according to the present invention;
FIG. 2 is a schematic view of another angle of the testing system of the present invention;
FIG. 3 is a schematic view of the structure of the vertical bar and the clamping plate of the present invention;
FIG. 4 is a schematic structural diagram of a gear A and a rack A in the present invention;
FIG. 5 is a schematic view of the cylinder of the present invention;
FIG. 6 is a schematic structural view of a base and a rotating shaft according to the present invention;
FIG. 7 is a schematic structural view of a gear B and a rack B in the present invention;
FIG. 8 is a schematic structural diagram of the pressing wheel of the present invention;
FIG. 9 is a schematic view of the structure of the round sleeve and the supporting wheel in the present invention;
fig. 10 is a schematic structural view of a clamping block in the present invention.
Detailed Description
Referring to fig. 1-4, one exemplary operation that can be performed to test the facing extruded power cable according to the description is:
when the traditional power cable is subjected to pressure test, the power cable is subjected to pressure test from a single direction, but an inner core in the cable is easy to bend after the test is finished, the pressure-bearing test system of the power cable comprises a side box 01, a gear A02 is rotatably connected in the side box 01, two racks A03 slide on two sides in the side box 01, two racks A03 are meshed with a gear A02, a clamping plate 07 is fixed on each rack A03, and the clamping plate 07 is of an arc structure; when the power cable is subjected to pressure test, the power cable only needs to be erected between the two clamping plates 07, then the gear A02 is driven to rotate, the two racks A03 can be driven to be close to each other when the gear A02 rotates, so that the two racks A03 respectively drive the two clamping plates 07 to be close to the power cable, the power cable is clamped from the upper direction and the lower direction of the power cable for pressure test, the power cable can be tested in a bidirectional extrusion mode, the inner core of the power cable cannot be bent due to unidirectional pressure, and the power cable is guaranteed to be kept straight after the test; meanwhile, the arc-shaped structure of the clamping plate 07 can protect the surface of the power cable when contacting the surface of the power cable, and the outer side insulating skin of the power cable is prevented from being damaged in the pressure test.
Referring to fig. 1-5, one exemplary operation in which power input may be obtained according to the illustration is:
the automatic lifting device also comprises a base 15 which is rotatably connected with a screw rod 17, wherein a cylinder 18 is fixedly connected to the base 15, a sliding block 08 is fixedly connected to a side box 01, a hanging plate 04 is fixedly connected to the side box 01, a vertical rod 06 is fixedly connected to a clamping plate 07 positioned on the upper side, the vertical rod 06 slides on the hanging plate 04, the sliding block 08 is in threaded connection with the screw rod 17, and a tension spring is fixedly connected between the clamping plate 07 positioned on the upper side and the side box 01; in the test, only need to make cylinder 18 be located montant 06 top, when carrying out pressure test, stretch out through the cylinder pole in the cylinder 18 and promote montant 06 downwards, montant 06 drives the splint 07 that is located the upside when descending, and can drive gear A02 through the rack A03 meshing rather than being connected when the splint 07 that is located the upside descends and rotate, thereby it slides to realize that gear A02 meshes and drives rack A03 that is located the downside, finally realize that two splint 07 are close to each other, accomplish pressure test, when cylinder pole withdrawal in the cylinder 18, alright with pulling rack A03 that is located the upside under tension spring's effect and upwards sliding and resetting, thereby realize that two splint 07 are kept away from each other, the automatic power cable that loosens.
Referring to fig. 1 to 5 and 8, an exemplary operation process for obtaining the degree of bending of the unidirectional test power cable according to the present invention is:
the invention also comprises a pinch roller 23 sliding on the hanging plate 04, and a tension spring is connected between the pinch roller 23 and the hanging plate 04; during testing, firstly, the screw rod 17 is rotated, so that the slide block 08 can be driven by the screw rod 17 to slide backwards on the base 15, the suspension plate 04 is moved, the pressing wheel 23 is moved to the lower end of the air cylinder 18, the pressing wheel 23 is pushed downwards by extending an air cylinder rod in the air cylinder 18, a tension spring on the pressing wheel 23 is stretched, the power cable can be pressed downwards from the upper part of the power cable when the pressing wheel 23 is downwards, the power cable is bent upwards, and the bending degree of the power cable is tested;
the positions of the pressing wheel 23 and the vertical rod 06 can be adjusted through forward and reverse rotation of the screw rod 17, so that a mode of testing the power cable in a one-way mode and testing the power cable by extruding the power cable to the opposite side is realized.
Referring to fig. 1-9, one exemplary operation that may be achieved to erect a power cable according to the embodiments shown in the figures is:
the invention also comprises a rotating shaft 16 which rotates on the base 15 and is provided with threads on two sides, and two threaded sleeves 19 which are connected with two sides of the rotating shaft 16 in a threaded manner, wherein each threaded sleeve 19 is fixed with a round sleeve 20, and each round sleeve 20 is provided with a supporting wheel 21 in a sliding manner; before testing, the power cable sequentially passes through the two round sleeves 20, so that the two round sleeves 20 can erect the power cable at a testing position; meanwhile, the rotating shaft 16 can be rotated, so that the rotating shaft 16 drives the two threaded sleeves 19 to slide on the base 15, and the distance between the two round sleeves 20 is changed, thereby realizing the test of power cables with different lengths;
meanwhile, when the power cable is subjected to a bending test, the supporting wheel 21 on each round sleeve 20 can support the position, bent relative to the round sleeve 20, of the power cable, so that the power cable is prevented from being damaged by the round sleeve 20, and meanwhile, the circular arc structure can be supported relative to the position, bent relative to the round sleeve 20, of the power cable.
Referring to fig. 1 to 10, one exemplary operation of clamping an electric power cable according to the present invention is:
the round sleeve 20 is connected with two clamping blocks 22 through two telescopic rods respectively; after the power cable is inserted into the round sleeve 20, the two telescopic rods are used for respectively driving the two clamping blocks 22 to be close to each other to clamp the power cable, so that the power cable is clamped in a horizontal state, the power cable is prevented from continuously sliding in the round sleeve 20 during testing, the power cable is stretched when the bending degree of the power cable is tested by applying pressure in a single direction, and meanwhile, the drawing test of the power cable is completed;
the clamping blocks 22 are provided with rubber pads, and the rubber pads can protect the insulating skin of the power cable and avoid damaging the insulating skin of the power cable.
Referring to fig. 1-10, one exemplary operation that may be obtained for performing a bending test on a power cable according to the present disclosure is:
the invention also comprises a block 09, two clamping arms 10 rotating on the block 09, two racks B12 sliding on the block 09, and two connecting rods 13 respectively and rotatably connected to the two racks B12, wherein the two connecting rods 13 are both rotated on a push rod 14, and each clamping arm 10 is fixed with a gear B11; when testing is carried out, firstly, a power cable is clamped, then the two circular sleeves 20 are close to each other, so that the middle of the power cable sags, then the power cable is pressed downwards by using the pressing wheel 23, the power cable is pressed downwards between the two clamping arms 10, then the two connecting rods 13 are pushed by using the push rod 14, the two connecting rods 13 respectively drive the two racks B12 to slide outwards on the square 09, the two racks B12 can be meshed to drive the two gears B11 to rotate oppositely when sliding, the two gears B11 can be rotated to clamp the power cable, when the power cable is clamped, the pressing wheel 23 can be upwards withdrawn, the interference of the power cable to be bent is avoided, and the bending test can be carried out by clamping the power cable by the two clamping arms 10 along with the continuous rotation of the two clamping arms 10;
meanwhile, an arc-shaped groove is formed in the clamping arm 10; the arc-shaped groove can protect the clamped power cable by utilizing the arc surface of the arc-shaped groove, and the insulation skin of the power cable is prevented from being damaged.
Claims (10)
1. The utility model provides a power cable's pressure-bearing test system which characterized in that: the side box comprises a side box (01) which is rotatably connected with a gear A (02) and two racks A (03) which slide in the side box (01) and are respectively meshed with the gear A (02), wherein each rack A (03) is fixedly provided with a clamping plate (07).
2. The power cable pressure bearing test system of claim 1, characterized in that: the device also comprises a base (15) which is rotationally connected with a screw rod (17), and a cylinder (18) which is fixed on the base (15).
3. The power cable pressure bearing test system of claim 2, characterized in that: the lifting device is characterized by further comprising a lifting plate (04) and a sliding block (08) which are fixed on the side box (01), and a vertical rod (06) which is fixed on the upper side clamping plate (07), wherein the vertical rod (06) slides on the lifting plate (04), and the sliding block (08) is in threaded connection with the screw rod (17).
4. A pressure bearing test system for a power cable according to claim 3, characterized in that: the device also comprises a pressing wheel (23) sliding on the hanging plate (04), and a tension spring is connected between the pressing wheel (23) and the hanging plate (04).
5. The power cable pressure bearing test system of claim 4, wherein: the device is characterized by further comprising a rotating shaft (16) which is arranged on the base (15) in a rotating mode and provided with threads on two sides, and two threaded sleeves (19) which are connected to two sides of the rotating shaft (16) in a threaded mode, wherein each threaded sleeve (19) is fixedly provided with a round sleeve (20), and each round sleeve (20) is provided with a supporting wheel (21) in a sliding mode.
6. The power cable pressure bearing test system of claim 5, wherein: the round sleeve (20) is connected with two clamping blocks (22) through two telescopic rods respectively.
7. The power cable pressure bearing test system of claim 5, wherein: the clamping device further comprises a square block (09), two clamping arms (10) which are rotatably arranged on the square block (09), two racks B (12) which are slidably arranged on the square block (09), and two connecting rods (13) which are respectively and rotatably connected to the two racks B (12), wherein the two connecting rods (13) are respectively and rotatably arranged on a push rod (14), and a gear B (11) is fixedly arranged on each clamping arm (10).
8. The power cable pressure bearing test system of claim 7, wherein: an arc-shaped groove is formed in the clamping arm (10).
9. The power cable pressure bearing test system of claim 6, wherein: the clamping blocks (22) are provided with rubber pads.
10. A pressure bearing test system for power cables according to claim 9, characterized in that the method of testing power cables is as follows:
s1: the vertical rod (06) is pressed down, and the two clamping plates (07) approach each other to apply pressure to the power cable from the upper side and the lower side in a two-way manner to complete pressure testing;
s2: the positions of the pinch roller (23) and the vertical rod (06) are adjusted by rotating the screw rod (17);
s3: pressing down the pinch roller (23) to enable the pinch roller (23) to move the power cable downwards to finish the bending degree test of the upward bending of the power cable;
s4: and the two connecting rods (13) are pushed by using the push rod (14), so that the two clamping arms (10) clamp the power cable for bending test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210385066.1A CN114813370A (en) | 2022-04-13 | 2022-04-13 | Power cable pressure-bearing test system and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210385066.1A CN114813370A (en) | 2022-04-13 | 2022-04-13 | Power cable pressure-bearing test system and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114813370A true CN114813370A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210385066.1A Pending CN114813370A (en) | 2022-04-13 | 2022-04-13 | Power cable pressure-bearing test system and test method |
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| Country | Link |
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| CN (1) | CN114813370A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754364A (en) * | 2022-12-21 | 2023-09-15 | 常州凯都电器有限公司 | Drawing test detection mechanism for binding post production |
| CN117969306A (en) * | 2024-03-29 | 2024-05-03 | 深圳市凌航达电子有限公司 | Detection system for printed circuit board |
-
2022
- 2022-04-13 CN CN202210385066.1A patent/CN114813370A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754364A (en) * | 2022-12-21 | 2023-09-15 | 常州凯都电器有限公司 | Drawing test detection mechanism for binding post production |
| CN117969306A (en) * | 2024-03-29 | 2024-05-03 | 深圳市凌航达电子有限公司 | Detection system for printed circuit board |
| CN117969306B (en) * | 2024-03-29 | 2024-06-07 | 深圳市凌航达电子有限公司 | Detection system for printed circuit board |
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