CN114441339A - Reciprocating bending test device for cable sample - Google Patents
Reciprocating bending test device for cable sample Download PDFInfo
- Publication number
- CN114441339A CN114441339A CN202210098088.XA CN202210098088A CN114441339A CN 114441339 A CN114441339 A CN 114441339A CN 202210098088 A CN202210098088 A CN 202210098088A CN 114441339 A CN114441339 A CN 114441339A
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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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- 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
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
Abstract
The invention relates to a reciprocating bending test device for a cable sample, which comprises a rack assembly, a variable speed transmission mechanism assembly and a pulley assembly. The rack assembly comprises a rack frame body, a driven gear rack, a motor mounting seat, a fixed pulley mounting rack and a cable fixing rack; the variable-speed transmission mechanism assembly comprises a servo motor, a motor transmission gear, a transmission chain, a bearing, a chain end fastener and a driven gear; the pulley assembly comprises a pressure roller wheel, a fixed pulley, a fixed end fastener, a columnar rail, a movable pulley and a load; the electric control system comprises an electric control box body, a circuit breaker, a contactor, a transformer, a PLC (programmable logic controller), a frequency converter, a touch screen, a knob switch, a speed regulator, a buzzer, a first sample on-off clamp, a second sample on-off clamp and an infrared counter probe. The invention can carry out repeated bending test on various large-outer-diameter cable samples under severe conditions, thereby expanding the test.
Description
Technical Field
The invention relates to a bending test device, in particular to a reciprocating bending test device for a cable sample.
Background
The bending test device in the prior art mostly adopts the design of a single test sample and a small bending radius during the test, and the bending test device tests whether the test sample is broken or not under the specified bending times and turning radius by fixing one end of the test sample and repeatedly bending the other end.
The existing bending test device has some problems and disadvantages:
(1) the existing bending test device can be provided with a small sample and cannot test a sample with a large outer diameter;
(2) the existing bending test device is low in severity and can only be bent in one place, and the test diversity is small;
(3) the conventional bending test apparatus cannot automatically stop the test because the test sample is broken within the set test frequency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a reciprocating bending test device for cable samples, which can be used for mounting cable samples with various outer diameters and realizing test diversity.
According to the technical scheme provided by the invention, the reciprocating bending test device of the cable sample comprises a rack assembly, a variable speed transmission mechanism assembly and a pulley assembly; the variable speed transmission mechanism assembly and the pulley assembly are positioned in the same vertical plane and are positioned at the front end of the rack assembly.
Preferably, the rack assembly comprises a rack frame body, a driven gear rack, a motor mounting seat, a fixed pulley mounting rack and a cable fixing rack;
the bottom of the frame body is fixed with a motor mounting seat, the frame body right above the motor mounting seat is fixed with a driven gear rack, the frame body on the right side of the driven gear rack is fixed with a fixed pulley mounting rack, the frame body on the right side of the fixed pulley mounting rack is fixed with a cable fixing frame, and the right side face of the frame body is fixed with a hand staircase.
Preferably, the variable speed transmission mechanism assembly comprises a servo motor, a motor transmission gear, a transmission chain, a bearing, a chain end fastener and a driven gear;
the servo motor is fixed on the motor mounting seat, a motor transmission gear is fixed on an output shaft of the servo motor, the driven gear is fixed on a driven gear carrier, a transmission chain is arranged on the motor transmission gear and the driven gear, a bolt is installed on the transmission chain, a chain end fastening piece is welded on the excircle of the bearing, and the inner ring of the bearing is connected with the transmission chain through the bolt.
Preferably, the pulley assembly comprises a pressure roller wheel, a fixed pulley, a fixed end fastener, a columnar rail, a movable pulley and a load;
install pressure running roller and fixed pulley on the fixed pulley mounting bracket, install stiff end fastener and pressure running roller at the upper end of cable mount, the pressure running roller is near the fixed pulley two are vertical setting and the column track that is parallel to each other around being fixed with in the frame framework under the cable mount, slidable mounting has the movable pulley axle on the column track, installs the movable pulley on the movable pulley axle, and the movable pulley is located between two column tracks around, hangs on the movable pulley and has a load.
Preferably, an electric control system is installed on the rack frame body, and the electric control system comprises an electric control box body, a circuit breaker, a contactor, a transformer, a PLC (programmable logic controller), a frequency converter, a touch screen, a knob switch, a speed regulator, a buzzer, a first sample on-off clamp, a second sample on-off clamp and an infrared counter probe;
the circuit breaker, the contactor, the transformer, the PLC and the frequency converter are positioned in the electric control box body, the touch screen, the knob switch, the speed regulator and the buzzer are positioned on the surface of the electric control box body, and the infrared counter probe is arranged on the frame body;
the line L1, the line L2 and the line L3 in the three-phase power supply bus are connected with a circuit breaker, the line L1, the line L2 and the line L3 in the power supply line of the servo motor are connected with the corresponding line L1, the line L2 and the line L3 in the three-phase power supply bus, and the line L1, the line L2 and the line L3 in the power supply line of the servo motor are sequentially connected with a contactor and a frequency converter; the L1 line and the L3 line in the three-phase power bus are connected with the primary coil of the transformer, the L line and the N line in the power line of the PLC controller are connected with the secondary coil of the transformer, and the L line of the power line of the PLC controller is provided with a knob switch;
and the frequency converter, the touch screen, the knob switch, the speed regulator, the buzzer, the first sample on-off clamp, the second sample on-off clamp and the infrared counter probe are all connected with the PLC.
The test device can be used for carrying out repeated bending tests on various large-outer-diameter cable samples under severe conditions, so that the tests are expanded.
Drawings
Fig. 1 is a right side view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a right side view of the frame assembly of the present invention.
Fig. 4 is a front view of the frame assembly of the present invention.
FIG. 5 is a right side view of the variable transmission assembly of the present invention.
Fig. 6 is a front view of the variable speed drive assembly of the present invention.
Figure 7 is a right side view of the pulley assembly of the present invention.
Figure 8 is a front view of the sheave assembly of the present invention.
Fig. 9 is a schematic diagram of an electronic control system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, common embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
The invention discloses a reciprocating bending test device of a cable sample, which comprises a rack assembly 1, a variable speed transmission mechanism assembly 2 and a pulley assembly 3, wherein the rack assembly is shown in figures 1 and 2; the variable speed transmission mechanism assembly 2 and the pulley assembly 3 are positioned in the same vertical plane and are positioned at the front end of the rack assembly 1.
As shown in fig. 3 and 4, the rack assembly 1 includes a rack frame 1.1, a driven gear rack 1.2, a motor mounting seat 1.3, a fixed pulley mounting frame 1.4 and a cable fixing frame 1.5;
a motor mounting seat 1.3 is fixed at the bottom of the frame 1.1, a driven gear carrier 1.2 is fixed on the frame 1.1 right above the motor mounting seat 1.3, a fixed pulley mounting rack 1.4 is fixed on the frame 1.1 on the right side of the driven gear carrier 1.2, a cable fixing frame 1.5 is fixed on the frame 1.1 on the right side of the fixed pulley mounting rack 1.4, and a hand ladder 1.6 is fixed on the right side surface of the frame 1.1.
As shown in fig. 5 and 6, the speed change transmission mechanism assembly 2 includes a servo motor 2.1, a motor transmission gear 2.2, a transmission chain 2.3, a bearing 2.4, a chain end fastener 2.5 and a driven gear 2.6;
the servo motor 2.1 is fixed on the motor mounting seat 1.3, a motor drive gear 2.2 is fixed on an output shaft of the servo motor 2.1, a driven gear 2.6 is fixed on a driven gear carrier 1.2, a drive chain 2.3 is arranged on the motor drive gear 2.2 and the driven gear 2.6, a bolt is installed on the drive chain 2.3, a chain end fastening piece 2.5 is welded on the excircle of the bearing 2.4, and the inner ring of the bearing 2.4 is connected with the drive chain 2.3 through the bolt. When the servo motor 2.1 drives the motor transmission gear 2.2 to rotate around the central point, the motor transmission gear 2.2 drives the transmission chain 2.3 to move, the driven gear 2.6 is driven to rotate around the central point, and the bearing 2.4 and the chain end fastening piece 2.5 do reciprocating elliptic circular motion along with the transmission chain 2.3.
As shown in fig. 7 and 8, the pulley assembly 3 includes a pressure roller 3.1, a fixed pulley 3.2, a fixed end fastener 3.3, a columnar rail 3.4, a movable pulley 3.5 and a load 3.6;
install pressure running roller 3.1 and fixed pulley 3.2 on fixed pulley mounting bracket 1.5, install stiff end fastener 3.3 and pressure running roller 3.1 at cable mount 1.5's upper end, pressure running roller 3.1 is near fixed pulley 3.2 be fixed with around two be vertical setting and the columnar track 3.4 that are parallel to each other on frame framework 1.1 under cable mount 1.5, slidable mounting has the movable pulley axle on columnar track 3.4, installs movable pulley 3.5 on the movable pulley axle, and movable pulley 3.5 is located between two columnar tracks 3.4 around, hangs load 3.6 on movable pulley 3.5. When the device works, one end of a cable sample 5 is fixed on a chain end fastening piece 2.5, one end of the cable sample sequentially penetrates through a fixed pulley 3.2 and a movable pulley 3.5 and is fixed on a frame body 1.1 through a fixed end fastening piece 3.3, when a transmission chain 2.3 rotates, the fixed pulley 3.2 rotates around the center, and the movable pulley 3.5 rotates around the center and simultaneously drives a load 3.6 to do vertical reciprocating motion along a track 3.4. The pressure roller 3.1 arranged on the fixed pulley mounting rack 1.5 and the pressure roller 3.1 arranged at the upper end part of the cable fixing rack 1.5 can prevent the cable sample 5 from sliding out of the circumferential groove of the fixed pulley 3.2 in the test process.
As shown in fig. 9, an electric control system 4 is installed on a rack frame 1.1, and the electric control system 4 includes an electric control box 4.1, a circuit breaker 4.2, a contactor 4.3, a transformer 4.4, a PLC controller 4.5, a frequency converter 4.6, a touch screen 4.7, a knob switch 4.8, a speed regulator 4.9, a buzzer 4.10, a first sample on-off clamp 4.11, a second sample on-off clamp 4.12 and an infrared counter probe 4.13;
the circuit breaker 4.2, the contactor 4.3, the transformer 4.4, the PLC 4.5 and the frequency converter 4.6 are positioned inside the electric control box body 4.1, the touch screen 4.7, the knob switch 4.8, the speed regulator 4.9 and the buzzer 4.10 are positioned on the surface of the electric control box body 4.1, and the infrared counter probe 4.12 is arranged on the frame body 1.1;
the line L1, the line L2 and the line L3 in the three-phase power supply bus are connected with a circuit breaker 4.2, the line L1, the line L2 and the line L3 in the power supply line of the servo motor 2.1 are connected with the corresponding line L1 and the line L2 and the line L3 in the three-phase power supply bus, and the line L1, the line L2 and the line L3 in the power supply line of the servo motor 2.1 are sequentially connected with a contactor 4.3 and a frequency converter 4.6; a line L1 and a line L3 in a three-phase power bus are connected with a primary coil of a transformer 4.4, a line L and a line N in a power line of a PLC 4.5 are connected with a secondary coil of the transformer 4.4, a knob switch 4.8 is installed on the line L in the power line of the PLC 4.5, and fuses are installed on the line L and the line N in the power line of the PLC 4.5;
and the frequency converter 4.6, the touch screen 4.7, the knob switch 4.8, the speed regulator 4.9, the buzzer 4.10, the first sample on-off clamp 4.11, the second sample on-off clamp 4.12 and the infrared counter probe 4.13 are all connected with the PLC 4.5.
The working process of the invention comprises the following steps:
i, when installing cable sample 5, the full-automatic reciprocal bending test device power of complete disconnection, fix the one end of cable sample 5 on frame stiff end fastener 1.4, the other end passes movable pulley 3.5 in proper order, fixed pulley 3.2 is fixed on chain end fastener 3.3, press from both sides first sample break-make clip 4.11 and second sample break-make clip 4.12 at the both ends of cable sample 5, first sample break-make clip 4.11 links to each other with electrical system 4 with the electric wire with second sample break-make clip 4.12, infrared counter probe 4.13 is installed in the frame upper left side, link to each other with electrical system 4 with the electric wire, install experimental required load 3.6 below movable pulley 3.5.
II, opening a circuit breaker 4.2, rotating a knob switch 4.8 on the electric control box body 4.1, electrifying the circuit, and setting the reciprocating bending operation times and the operation speed of the sample through a touch screen 4.7. When a start key on a touch screen 4.7 is pressed, a servo motor 2.1 is started to drive a motor transmission gear 2.2 to rotate around a central point, a transmission chain 2.3 is driven to do reciprocating elliptical circular motion around two central points of the motor transmission gear 2.2 and a driven gear 2.6, and as one end of a cable sample 5 is installed on a chain end fastener 2.5, a fixed pulley 3.2 is dragged to rotate around the central point, and meanwhile, a movable pulley 3.5 is dragged to do vertical reciprocating motion on a columnar track 3.4. Every time the movable pulley 3.5 reaches the highest point, the infrared counter probe 4.13 sends an electric signal to the PLC controller 4.5, and the test is stopped when the test times reach a set value.
III, when the conductor of the cable sample 5 is broken within the set test times, the first sample on-off clamp 4.11 and the second sample on-off clamp 4.12 at the two ends of the cable sample and the electric control box body 4.1 form an open circuit, after the PLC 4.5 receives a signal, the servo motor 2.1 can be immediately controlled to stop running, and the buzzer 4.10 sounds and records the test times.
The invention can be used for installing various large-outer-diameter cable samples to perform a reciprocating bending test.
The invention can adjust the reciprocating speed of the sample and set the reciprocating times of the sample.
When the conductor of the cable sample 5 is broken in the test process, the PLC 4.5 can immediately control the servo motor 2.1 to stop running, the buzzer 4.10 sounds, and the touch screen 4.7 displays the test times.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the principles of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (5)
1. A cable sample's reciprocal bending test device, characterized by: the device comprises a frame assembly (1), a variable speed transmission mechanism assembly (2) and a pulley assembly (3); the variable speed transmission mechanism assembly (2) and the pulley assembly (3) are positioned in the same vertical plane and are positioned at the front end of the rack assembly (1).
2. The apparatus for testing the reciprocal bending of a cable specimen as set forth in claim 1, wherein: the rack assembly (1) comprises a rack frame body (1.1), a driven gear rack (1.2), a motor mounting seat (1.3), a fixed pulley mounting rack (1.4) and a cable fixing rack (1.5);
a motor installation seat (1.3) is fixed at the bottom of a frame body (1.1), a driven gear rack (1.2) is fixed on the frame body (1.1) right above the motor installation seat (1.3), a fixed pulley installation frame (1.4) is fixed on the frame body (1.1) on the right side of the driven gear rack (1.2), a cable fixing frame (1.5) is fixed on the frame body (1.1) on the right side of the fixed pulley installation frame (1.4), and a hand staircase (1.6) is fixed on the right side face of the frame body (1.1).
3. The apparatus for testing the reciprocal bending of a cable specimen as set forth in claim 1, wherein: the variable-speed transmission mechanism assembly (2) comprises a servo motor (2.1), a motor transmission gear (2.2), a transmission chain (2.3), a bearing (2.4), a chain end fastener (2.5) and a driven gear (2.6);
servo motor (2.1) is fixed on motor mount pad (1.3), is fixed with motor drive gear (2.2) on the output shaft of servo motor (2.1), and driven gear (2.6) are fixed on driven gear frame (1.2), are equipped with drive chain (2.3) on motor drive gear (2.2) and driven gear (2.6), install the bolt on drive chain (2.3), the welding has chain end fastener (2.5) on the excircle of bearing (2.4), and the inner circle of bearing (2.4) passes through the bolt and links to each other with drive chain (2.3).
4. The apparatus for testing the reciprocal bending of a cable specimen as set forth in claim 1, wherein: the pulley assembly (3) comprises a pressure roller (3.1), a fixed pulley (3.2), a fixed end fastener (3.3), a columnar rail (3.4), a movable pulley (3.5) and a load (3.6);
install pressure running roller (3.1) and fixed pulley (3.2) on fixed pulley mounting bracket (1.5), install stiff end fastener (3.3) and pressure running roller (3.1) at the upper end of cable mount (1.5), pressure running roller (3.1) are near fixed pulley (3.2) be fixed with two around being vertical setting and column track (3.4) that are parallel to each other on frame framework (1.1) under cable mount (1.5), slidable mounting has the loose pulley axle on column track (3.4), installs movable pulley (3.5) on the loose pulley axle, and between two column track (3.4) around movable pulley (3.5) are located, has hung load (3.6) on movable pulley (3.5).
5. The apparatus for testing the reciprocal bending of a cable specimen as set forth in claim 2, wherein: an electric control system (4) is installed on a rack frame body (1.1), and the electric control system (4) comprises an electric control box body (4.1), a circuit breaker (4.2), a contactor (4.3), a transformer (4.4), a PLC (programmable logic controller) controller (4.5), a frequency converter (4.6), a touch screen (4.7), a knob switch (4.8), a speed regulator (4.9), a buzzer (4.10), a first sample on-off clamp (4.11), a second sample on-off clamp (4.12) and an infrared counter probe (4.13);
the circuit breaker (4.2), the contactor (4.3), the transformer (4.4), the PLC (4.5) and the frequency converter (4.6) are positioned inside the electric control box body (4.1), the touch screen (4.7), the knob switch (4.8), the speed regulator (4.9) and the buzzer (4.10) are positioned on the surface of the electric control box body (4.1), and the infrared counter probe (4.13) is installed on the rack frame body (1.1);
a breaker (4.2) is connected to an L1 line, an L2 line and an L3 line in a three-phase power supply bus, an L1 line, an L2 line and an L3 line in a power supply line of a servo motor (2.1) are connected with a corresponding L1 line, an L2 line and an L3 line in the three-phase power supply bus, and a contactor (4.3) and a frequency converter (4.6) are sequentially connected to an L1 line, an L2 line and an L3 line in the power supply line of the servo motor (2.1); a primary coil of the transformer (4.4) is connected with a line L1 and a line L3 in the three-phase power bus, a secondary coil of the transformer (4.4) is connected with a line L and a line N in a power line of the PLC (4.5), and a knob switch (4.8) is installed on the line L of the power line of the PLC (4.5);
the frequency converter (4.6), the touch screen (4.7), the knob switch (4.8), the speed regulator (4.9), the buzzer (4.10), the first sample on-off clamp (4.11), the second sample on-off clamp (4.12) and the infrared counter probe (4.13) are all connected with the PLC (4.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210098088.XA CN114441339A (en) | 2022-01-27 | 2022-01-27 | Reciprocating bending test device for cable sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210098088.XA CN114441339A (en) | 2022-01-27 | 2022-01-27 | Reciprocating bending test device for cable sample |
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| Publication Number | Publication Date |
|---|---|
| CN114441339A true CN114441339A (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210098088.XA Pending CN114441339A (en) | 2022-01-27 | 2022-01-27 | Reciprocating bending test device for cable sample |
Country Status (1)
| Country | Link |
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| CN (1) | CN114441339A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928301A (en) * | 2012-11-06 | 2013-02-13 | 江苏祥源电气设备有限公司 | Trial tooling for testing bending fatigue resistant performance of composite insulator |
| CN203162020U (en) * | 2013-03-19 | 2013-08-28 | 西华大学 | Chain-drive reciprocating motion mechanism |
| CN104897483A (en) * | 2015-07-02 | 2015-09-09 | 中天合金技术有限公司 | Copper alloy through grounding wire bending property tester |
| CN107036879A (en) * | 2016-02-03 | 2017-08-11 | 湖南华菱线缆股份有限公司 | Cable test device |
| CN107132117A (en) * | 2017-07-07 | 2017-09-05 | 江苏亨通线缆科技有限公司 | Deflect formula test instrument and test instrument |
| CN107963406A (en) * | 2017-10-16 | 2018-04-27 | 浙江美登特种薄膜有限公司 | A kind of continuous reciprocator of platform |
| CN213337148U (en) * | 2020-10-20 | 2021-06-01 | 西安特种设备检验检测院 | Elevator crane steel wire rope bending fatigue detection device convenient to clamp |
| CN112986023A (en) * | 2021-03-05 | 2021-06-18 | 扬州工业职业技术学院 | Fatigue strength experiment system for spiral cable |
-
2022
- 2022-01-27 CN CN202210098088.XA patent/CN114441339A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928301A (en) * | 2012-11-06 | 2013-02-13 | 江苏祥源电气设备有限公司 | Trial tooling for testing bending fatigue resistant performance of composite insulator |
| CN203162020U (en) * | 2013-03-19 | 2013-08-28 | 西华大学 | Chain-drive reciprocating motion mechanism |
| CN104897483A (en) * | 2015-07-02 | 2015-09-09 | 中天合金技术有限公司 | Copper alloy through grounding wire bending property tester |
| CN107036879A (en) * | 2016-02-03 | 2017-08-11 | 湖南华菱线缆股份有限公司 | Cable test device |
| CN107132117A (en) * | 2017-07-07 | 2017-09-05 | 江苏亨通线缆科技有限公司 | Deflect formula test instrument and test instrument |
| CN107963406A (en) * | 2017-10-16 | 2018-04-27 | 浙江美登特种薄膜有限公司 | A kind of continuous reciprocator of platform |
| CN213337148U (en) * | 2020-10-20 | 2021-06-01 | 西安特种设备检验检测院 | Elevator crane steel wire rope bending fatigue detection device convenient to clamp |
| CN112986023A (en) * | 2021-03-05 | 2021-06-18 | 扬州工业职业技术学院 | Fatigue strength experiment system for spiral cable |
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