CN211825393U - Fatigue test device for repeatedly winding and unwinding optical cable - Google Patents
Fatigue test device for repeatedly winding and unwinding optical cable Download PDFInfo
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- CN211825393U CN211825393U CN202020503860.8U CN202020503860U CN211825393U CN 211825393 U CN211825393 U CN 211825393U CN 202020503860 U CN202020503860 U CN 202020503860U CN 211825393 U CN211825393 U CN 211825393U
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Abstract
The utility model provides a fatigue test device for receiving and releasing coiling optical cable repeatedly, include: a drive mechanism including a drive wheel driven to rotate by the first rotary drive device; the loading mechanism comprises a test wheel connected with the linear driving device, and the linear driving device drives the test wheel to move and applies a loading force; the wrap angle mechanism is arranged between the driving mechanism and the loading mechanism and comprises a guide wheel which is arranged on the support in a height-adjustable mode, and the height of the guide wheel is not less than that of the driving wheel and/or the test wheel; the control system is electrically connected with the first rotary driving device and the linear driving device; the driving mechanism, the wrap angle mechanism and the loading mechanism are sequentially arranged on the rack. The utility model discloses an useful part lies in, can high-efficient, convenient, simulate conveniently and be convoluteed the optic cable of reel and receive and release the process repeatedly under the effect of actual work pulling force, help the state that the optic cable showed behind the witness test, the anti fatigue effect ability of comprehensive aassessment optic cable.
Description
Technical Field
The utility model relates to a wire and cable check out test set especially relates to a fatigue test device for receive and release coiling optical cable repeatedly.
Background
For many types of optical cables, the application working environment is special and harsh, and the optical cables are mainly installed and wound on a winding drum of a winch, bear certain tension along with the rotation of the winding drum, and perform winding movement of repeated winding and unwinding. After long-time work, the optical cable may be fatigued, and further, the problems of structural change, performance degradation and the like occur, which may damage system engineering. Therefore, a device capable of performing the optical cable fatigue test efficiently, accurately and conveniently needs to be designed, various test requirements are met, and the performance change of the optical cable is guaranteed to be known visually and timely.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect, the utility model aims at providing a fatigue test device for receive and release coiling optical cable repeatedly.
The utility model provides a fatigue test device for receiving and releasing coiling optical cable repeatedly, include: a drive mechanism including a drive wheel driven to rotate by the first rotary drive device; the loading mechanism comprises a test wheel connected with a linear driving device, and the linear driving device drives the test wheel to move and applies a loading force; the wrap angle mechanism is arranged between the driving mechanism and the loading mechanism and comprises a guide wheel which is installed on a support in a height-adjustable mode, and the height of the guide wheel is not less than that of the driving wheel and/or the test wheel; the control system is electrically connected with the first rotary driving device and the linear driving device; the driving mechanism, the wrap angle mechanism and the loading mechanism are sequentially arranged on the rack.
Preferably, the linear driving means is a ball screw.
Preferably, the screw rod of the ball screw is in transmission connection with the second rotary driving device through a gear, and the movable nut of the ball screw is connected with the test wheel.
Preferably, one end of the screw is fixedly connected with the frame through a fixing bracket.
Preferably, the movable nut is fixedly connected with a movable cross beam, the test wheel is fixedly connected with the loading cross beam through a connecting support, and the movable cross beam is connected with the loading cross beam through a connecting rod.
Preferably, guide rails are arranged on two sides of the rack, and the movable beam and the loading beam are respectively connected with the guide rails in a sliding manner.
Preferably, the inner side of the frame is also provided with a slide rail matched with the test wheel.
Preferably, a limit switch and a counter are further mounted on the driving wheel.
Preferably, the cornerite mechanism still includes the installation axle, be equipped with a plurality of installation positions along the left and right direction on the installation axle, the leading wheel can dismantle the connection in the installation position.
Preferably, the support is provided with a plurality of fixing positions along the up-down direction, and the mounting shaft is detachably connected in the fixing positions.
The utility model discloses an useful part lies in:
firstly, in order to simulate the repeated winding and unwinding process of the optical cable wound on the winding drum under the action of actual working tension, repeated winding and unwinding tests are carried out for a certain number of times under simulated actual working conditions, so that the state of the optical cable after the test can be observed, and the fatigue resistance of the optical cable can be comprehensively evaluated;
secondly, various test wheels can be arranged, the replacement is quick and convenient, and the test requirements of optical cables with various outer diameters can be met;
thirdly, the testing machine can provide the maximum loading force of 200kN, and can meet the requirement of testing tension on the optical cable in most of the current repeated winding and unwinding working environments;
fourthly, the equipment can also carry out various mechanical tests such as a tensile test, a pulley test, a flattening test and the like;
fifthly, the testing linear velocity of the equipment is adjustable, and the requirement of quick and efficient testing can be met by adopting the maximum linear velocity;
sixth, the device can realize real-time performance monitoring of optical cable performance, and visually and timely know performance changes of the optical cable.
Drawings
FIG. 1 is a front view of the fatigue testing device of the present invention;
FIG. 2 is a plan view of the fatigue testing device of the present invention;
FIG. 3 is a schematic view at A-A in FIG. 2;
FIG. 4 is a perspective view of the fatigue testing device of the present invention;
fig. 5 is a schematic view of the working state of the fatigue testing device of the present invention.
Element number description:
1 drive wheel
11 first rotary drive device
2 guide wheel
21 support
22 fixed position
23 mounting shaft
24 connecting block
25 mounting position
3 test wheel
31 rope groove
32 connecting bracket
33 sliding rail
4 screw rod
41 Movable nut
42 fixed support
43 second rotary drive
44 drive wheel
45 driven wheel
51 Mobile crossbeam
52 load beam
53 guide rail
54 connecting rod
6 machine frame
61 support leg
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a front view of the fatigue testing apparatus according to the present invention, and in the following description, the drawing in fig. 1 is used as a reference base of the direction, the upward direction is along the view paper surface, the downward direction is along the view paper surface, the backward direction is along the view paper surface, the leftward direction is perpendicular to the view paper surface, and the rightward direction is perpendicular to the view paper surface.
As shown in fig. 1 and 2, the utility model provides a fatigue test device for receiving and releasing coiling optical cable repeatedly, the device include actuating mechanism, loading mechanism, cornerite mechanism and control system, and actuating mechanism, cornerite mechanism and loading mechanism are installed in proper order on frame 6 by preceding backward, and the bottom of frame 6 is equipped with a plurality of supporting legs 61. The driving mechanism comprises a driving wheel 1 driven by a first rotary driving device 11 to rotate, wherein the first rotary driving device 11 is specifically a servo motor speed reducer set, is connected with the driving wheel 1 through a coupler, and controls the driving wheel 1 to rotate repeatedly at a certain frequency under the control of a control system. And the driving wheel 1 is also provided with a limit switch and a counter for acquiring a breaking signal of the optical cable and recording test times.
As shown in fig. 2 and 4, the loading mechanism includes a test wheel 3 connected to a linear driving device, and the linear driving device drives the test wheel 3 to move backward, thereby applying a loading force to the test wheel 3. In specific implementation, the linear driving device is a ball screw, and the ball screw has the characteristics of stable operation, high reciprocating motion repetition precision and the like. Wherein, ball's screw rod 4 passes through gear drive with second rotary driving device 43 and is connected, and second rotary driving device 43 is for installing the servo motor speed reduction unit in the ball below, output fixedly connected with action wheel 44, and screw rod 4's rear end fixedly connected with follows driving wheel 45, action wheel 44 with follow the transmission connection between the driving wheel 45, the front end of screw rod 4 then passes through fixed bolster 42 and frame 6 fixed connection for ball's installation is stable firm. The movable nut 41 of the ball screw is sleeved on the screw rod 4 and connected with the test wheel 3, when the second rotary driving device 43 drives the screw rod 4 to rotate, and the movable nut 41 makes linear motion, the movable nut 41 exerts backward loading force on the test wheel 3, and the test purpose is achieved. Specifically, the movable nut 41 is fixedly connected with a movable beam 51, the test wheel 3 is fixedly connected with a loading beam 52 through a connecting bracket 32, two ends of the movable beam 51 and two ends of the loading beam 52 are respectively contacted with the upper surface of the frame 6, and the two ends are connected through two connecting rods 54. In order to further ensure that the loading force is always kept on the same axis, guide rails 53 are arranged on two sides of the upper surface of the frame 6, and the moving beam 51 and the loading beam 52 are respectively connected with the guide rails 53 in a sliding manner. Besides, the inner side of the frame 6 is provided with a slide rail 33 which is matched with the test wheel 3, so that the movable beam 51 and the loading beam 52 can drive the test wheel 3 to move along the same direction. The control system is electrically connected with the second rotation driving device 43, and the loading force is kept constant through automatic adjustment, and the maximum value of the loading force is 200 kN. In addition, the constant displacement control and the constant force control can be realized by adopting a computer displacement closed loop and force closed loop control. The number of rope grooves 31 on the test wheel 3 can be adjusted as required.
As shown in fig. 1, 3 and 4, the wrap angle mechanism is arranged between the driving mechanism and the loading mechanism, and comprises a guide wheel 2 which is height-adjustably mounted on a support 21, so that the requirement that the test optical cable performs a test at a certain wrap angle is met. Specifically, cornerite mechanism includes that both ends are provided with the installation axle 23 of connecting block 24, is equipped with a plurality of installation positions 25 along the left and right direction on the installation axle 23, and leading wheel 2 demountable connection is in installation position 25. A plurality of fixing positions 22 are arranged on the support 21 along the up-down direction, the specific distance between two adjacent fixing positions 22 is 200mm, and the connecting blocks 24 at the two ends of the mounting shaft 23 are detachably connected with the fixing positions 22. Through setting up a plurality of installation positions 25 and fixed position 22, satisfy leading wheel 2 upper and lower left and right sides orientation's different mounted position demand, be convenient for change the leading wheel 2 of different wheel footpaths.
As shown in FIG. 5, the fatigue testing device of the present invention is based on the single-stage fatigue test, and the working method is as follows:
test mode a: only the optical cable 7 is wound on the driving wheel 1 and the test wheel 3, the driving wheel 1 and the test wheel 3 are positioned at the same height, the driving wheel 1 is controlled to rotate positively and negatively at a certain frequency, and the linear driving device is controlled to apply a certain loading force to the test wheel 3, so that the fatigue test of the optical cable 7 is completed;
test mode B: the optical cable 7 is wound on the driving wheel 1 and the test wheel 3, the optical cable 7 passes through the guide wheel 2 on the way, the height of the guide wheel 2 is set to be larger than that of the driving wheel 1 and/or the test wheel 3, the driving wheel 1 and the test wheel 3 are located at the same height, so that the optical cable 7 has a certain wrap angle, the driving wheel 1 is controlled to rotate positively and negatively at a certain frequency, the linear driving device is controlled to apply a certain loading force to the test wheel 3, and the fatigue test of the optical cable 7 with the wrap angle is completed.
The driving wheel 1 and the testing wheel 3 for the test are processed by HB260-280 modulation by adopting a material QT600, and the surface roughness of the rope groove 31 is 1.6-3.2.
To sum up, the utility model discloses an useful part lies in:
firstly, in order to simulate the repeated winding and unwinding process of the optical cable wound on the winding drum under the action of actual working tension, repeated winding and unwinding tests are carried out for a certain number of times under simulated actual working conditions, so that the state of the optical cable after the test can be observed, and the fatigue resistance of the optical cable can be comprehensively evaluated;
secondly, various test wheels can be arranged, the replacement is quick and convenient, and the test requirements of optical cables with various outer diameters can be met;
thirdly, the testing machine can provide the maximum loading force of 200kN, and can meet the requirement of testing tension on the optical cable in most of the current repeated winding and unwinding working environments;
fourthly, the equipment can also carry out various mechanical tests such as a tensile test, a pulley test, a flattening test and the like;
fifthly, the testing linear velocity of the equipment is adjustable, and the requirement of quick and efficient testing can be met by adopting the maximum linear velocity;
sixth, the device can realize real-time performance monitoring of optical cable performance, and visually and timely know performance changes of the optical cable.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A fatigue test device for repeatedly winding and unwinding a wound optical cable, comprising:
a drive mechanism including a drive wheel (1) driven to rotate by a first rotary drive device (11);
the loading mechanism comprises a test wheel (3) connected with a linear driving device, and the linear driving device drives the test wheel (3) to move and applies a loading force;
the wrap angle mechanism is arranged between the driving mechanism and the loading mechanism and comprises a guide wheel (2) which is mounted on a support (21) in a height-adjustable mode, and the height of the guide wheel (2) is not less than that of the driving wheel (1) and/or the test wheel (3);
the control system is electrically connected with the first rotary driving device (11) and the linear driving device;
the driving mechanism, the wrap angle mechanism and the loading mechanism are sequentially arranged on the rack (6).
2. A fatigue testing device according to claim 1, wherein said linear driving means is a ball screw.
3. A fatigue testing device according to claim 2, wherein the screw (4) of the ball screw is in gear transmission connection with the second rotary drive (43), and the movable nut (41) of the ball screw is in connection with the test wheel (3).
4. A fatigue testing device according to claim 3, wherein one end of the screw (4) is fixedly connected with the frame (6) by a fixing bracket (42).
5. A fatigue testing device according to claim 3, wherein a movable beam (51) is fixedly connected to the movable nut (41), the testing wheel (3) is fixedly connected with a loading beam (52) through a connecting bracket (32), and the movable beam (51) and the loading beam (52) are connected through a connecting rod (54).
6. A fatigue testing device according to claim 5, wherein guide rails (53) are provided on both sides of the frame (6), and the moving beam (51) and the loading beam (52) are slidably connected to the guide rails (53), respectively.
7. A fatigue testing device according to claim 3, wherein a slide rail (33) matched with the testing wheel (3) is arranged inside the frame (6).
8. A fatigue testing device according to claim 1, wherein a limit switch and a counter are further mounted on the driving wheel (1).
9. The fatigue testing device according to claim 1, wherein the wrap angle mechanism further comprises a mounting shaft (23), a plurality of mounting positions (25) are provided on the mounting shaft (23) in the left-right direction, and the guide wheel (2) is detachably connected in the mounting positions (25).
10. A fatigue testing device according to claim 9, wherein a plurality of fixing positions (22) are arranged on the support (21) along the up-down direction, and the mounting shaft (23) is detachably connected in the fixing positions (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020503860.8U CN211825393U (en) | 2020-04-08 | 2020-04-08 | Fatigue test device for repeatedly winding and unwinding optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020503860.8U CN211825393U (en) | 2020-04-08 | 2020-04-08 | Fatigue test device for repeatedly winding and unwinding optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211825393U true CN211825393U (en) | 2020-10-30 |
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ID=73142040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020503860.8U Active CN211825393U (en) | 2020-04-08 | 2020-04-08 | Fatigue test device for repeatedly winding and unwinding optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211825393U (en) |
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2020
- 2020-04-08 CN CN202020503860.8U patent/CN211825393U/en active Active
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