CN217688356U - Shuttle car flexible cable bending and dragging resistance test device for coal mine - Google Patents
Shuttle car flexible cable bending and dragging resistance test device for coal mine Download PDFInfo
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- CN217688356U CN217688356U CN202221491967.0U CN202221491967U CN217688356U CN 217688356 U CN217688356 U CN 217688356U CN 202221491967 U CN202221491967 U CN 202221491967U CN 217688356 U CN217688356 U CN 217688356U
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Abstract
The utility model discloses a flexible cable winding and dragging resistance test device for a coal mine shuttle car, which comprises a main frame, dragging wheels and an operation table, wherein the upper part of the main frame is provided with a first pulley and a second pulley which are symmetrical, and the lower part of the main frame is provided with a third pulley and a fourth pulley which are symmetrical; the towing wheel is connected with a lifting motor and is used for controlling the towing wheel to move along the up-and-down direction; the counterweight parts are hung at two ends of the tested cable and are respectively positioned at the outer sides of the first pulley and the second pulley, and the tested cable sequentially acts on the upper end of the first pulley, the lower end of the third pulley, the upper end of the towing wheel, the lower end of the fourth pulley and the upper end of the second pulley; the sinle silk in the cable under test is connected with the operation panel electricity, and the operation panel still is connected with elevator motor electricity. The utility model discloses a cooperation of each fixed pulley and tow wheel has realized the simulation of the winding of test cable and has dragged the process, and anti winding of cooperation operation panel can be accomplished and drag the capability test, has easy operation, the reliable advantage of data.
Description
Technical Field
The utility model relates to a mining cable test field, especially a shuttle car flexible cable anti-bending dragging performance test device for coal mine.
Background
The rubber jacketed flexible cable for the coal mine shuttle car has a severe working environment and needs to frequently move in a roadway and supply power to mechanical equipment. During the operation of the shuttle car, when the shuttle car moves forwards, translates or recovers, the cable can bear great tensile force and torsional deformation, so that the requirements on the performances of tensile strength, compression resistance, bending, torsion, wear resistance and the like of the cable are extremely high. With the continuous improvement and perfection of short-wall mechanized mining technology, the demand of rubber sleeve cables for coal mine shuttle cars is increased, so the test of the anti-winding drag performance becomes more important.
Although the industry provides a test item related to a bending and dragging resistance test, a test device capable of effectively meeting the bending and dragging resistance test requirement is still lacked, and the safety performance of the cable in the category cannot be comprehensively and objectively described in the existing test. The development of the test device perfects the requirement on the testing capability of the rubber sleeve cable for the coal mine shuttle car.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that above-mentioned prior art exists, provide an anti winding of shuttle car flexible cable for coal mine and pull performance test device, can simulate cable during operation atress and the process of winding, be the ideal device of implementing anti winding and pulling performance test.
The shuttle car flexible cable bending resistance dragging performance test device for the coal mine comprises a main frame, dragging wheels and an operation table, wherein an upper pulley block and a lower pulley block are respectively arranged at the upper part and the lower part of the main frame, the upper pulley block comprises a first pulley and a second pulley which are bilaterally symmetrical relative to the main frame, the lower pulley block comprises a third pulley and a fourth pulley which are bilaterally symmetrical relative to the main frame, and the third pulley and the fourth pulley are both positioned between the first pulley and the second pulley;
the dragging wheel positioned between the third pulley and the fourth pulley is connected with a lifting motor and used for controlling the dragging wheel to move along the up-and-down direction; the outer protection layers at two ends of the tested cable are respectively hung with a counterweight, the two suspended counterweights are respectively positioned at the outer sides of the first pulley and the second pulley, and the tested cable sequentially acts on the upper end of the first pulley, the lower end of the third pulley, the upper end of the towing wheel, the lower end of the fourth pulley and the upper end of the second pulley, so that the tested cable is in a winding state;
the cable core in the tested cable is electrically connected with the operating platform and used for detecting the on-off of the circuit of the cable core, and the operating platform is also electrically connected with the lifting motor.
Further, the dragging wheel is arranged below the lifting motor, and the dragging wheel is connected with the lifter in a non-rotatable mode.
Further, the weight member is a heavy hammer with the weight of 150 KG; the operation platform is also connected with an electromagnet, and the heavy hammer is suspended on the tested cable through the electromagnet.
Further, the diameter of the dragging wheel is smaller than the distance between the third pulley and the fourth pulley.
Further, in the case that a plurality of wire cores are included in the tested cable, each wire core is electrically connected with the operation table to form an independent loop.
Further, the operation panel includes:
the AC/DC transformer is connected with the wire core and used for electrifying;
the current relay is connected with the wire core and used for controlling on-off;
and the alarm bell is used for giving an alarm prompt after the test is stopped.
Further, the operation panel includes: the switch knob and the circuit breaker are connected and used for controlling the on-off of the power supply of the operating console; and the motor control output circuit is electrically connected with the lifter.
Further, the operation panel still includes: scram switch, lift pilot lamp, contactor, time relay, wherein, scram switch is connected with lift pilot lamp, contactor, time relay electricity.
Further, the operation panel still includes the connection: and the digital counter and the counter switch are used for counting and storing the running period of the test.
The utility model discloses following beneficial effect has at least:
the utility model discloses a cooperation of each fixed pulley and tow wheel has realized the simulation of the winding of test cable and has dragged the process, and anti winding of cooperation operation panel can be accomplished and drag the capability test, has easy operation, the reliable advantage of data.
Other advantageous effects of the present invention will be described in detail in the detailed description of the preferred embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test device for testing the bending and dragging resistance of a flexible cable of a shuttle car for a coal mine, which is disclosed by the preferred embodiment of the invention.
Fig. 2 shows a tested cable according to the preferred embodiment of the present invention.
The device comprises a dragging wheel 1, a first pulley 201, a second pulley 202, a third pulley 203, a fourth pulley 204, an operation table 3, a tested cable 4, a counterweight 5 and a wire core 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the utility model discloses a coal mine shuttle car flexible cable bending resistance drags performance test device, including main frame, tow wheel 1 and operation panel 3, the upper portion and the lower part of main frame are equipped with upper portion assembly pulley and lower part assembly pulley respectively, and the upper portion assembly pulley includes and is bilateral symmetry's first pulley 201 and second pulley 202 about the main frame, and the lower part assembly pulley includes and is bilateral symmetry's third pulley 203 and fourth pulley 204 about the main frame to third pulley 203 and fourth pulley 204 all are located between first pulley 201 and the second pulley 202.
The towing wheel 1 positioned between the third pulley 203 and the fourth pulley 204 is connected with a lifting motor and used for controlling the towing wheel 1 to move along the up-down direction; the outer jacket at the two ends of the tested cable 4 is respectively hung with a weight piece 5, the two suspended weight pieces 5 are respectively positioned at the outer sides of the first pulley 201 and the second pulley 202, and the tested cable 4 sequentially acts on the upper end of the first pulley 201, the lower end of the third pulley 203, the upper end of the towing wheel 1, the lower end of the fourth pulley 204 and the upper end of the second pulley 202, so that the tested cable 4 is in a winding state.
The cable core 6 in the tested cable 4 is electrically connected with the operation table 3 and used for detecting the on-off of a circuit of the cable core 6, and the operation table 3 is also electrically connected with the lifting motor.
Further, the tow wheel 1 is arranged below the hoisting motor, and the tow wheel 1 is non-rotatably connected with the hoisting machine.
Further, the weight member 5 is a weight with a weight of 150 KG; the operation table 3 is also connected with an electromagnet, and the heavy hammer is hung on the tested cable 4 through the electromagnet.
Further, the diameter of the trailing wheel 1 is smaller than the distance between the third sheave 203 and the fourth sheave 204.
Further, in the case where a plurality of cores 6 are included in the cable under test 4, the cores 6 are electrically connected to the console 3, respectively, to form independent loops.
Further, the operation table 3 includes:
the AC/DC transformer is connected with the wire core 6 and used for electrifying;
the current relay is connected with the wire core 6 and used for controlling on-off;
and the alarm bell is used for giving an alarm prompt after the test is stopped.
Further, the operation table 3 includes: the switch knob and the circuit breaker are connected and used for controlling the on-off of the power supply of the operating platform 3; and the motor control output circuit is electrically connected with the elevator.
Further, the operation table 3 further includes: scram switch, lift pilot lamp, contactor, time relay, wherein, scram switch is connected with lift pilot lamp, contactor, time relay electricity.
Further, the operation table 3 further includes, connected: and the digital counter and the counter switch are used for counting and storing the running period of the test.
Based on above-mentioned shuttle car flexible cable is anti to curl and drag performance test device for the coal mine, the utility model also provides an preferred embodiment.
In this embodiment, in order to ensure that the tested cable can be subjected to the test of coiling and pulling, the main framework of the device selects the structure of the pulley block. The outer diameter of the towing wheel fixed on a steel frame vertical to the ground is 300mm. The towing wheels can only move up and down in a direction perpendicular to the ground. Four the same fixed pulleys (first pulley to fourth pulley) are placed respectively to the left and right sides of tow-wheel, can effectively reduce the whole height of device when guaranteeing experimental effect to it is more convenient to make the installation of cable. The distance between the first pulley and the second pulley is about 1500mm, the height of the axle center from the ground is 1700mm, and the distance from the axle center of the fixed pulley below the first pulley is 800mm. The distance between the third pulley and the fourth pulley must ensure that the dragging wheel can smoothly move up and down between the third pulley and the fourth pulley, and the distance between the axle centers of the third pulley and the fourth pulley is preferably about 760mm. Two ends of four wire cores of the tested cable are respectively connected into a monitoring loop of the operating table. 150KG heavy hammers are respectively hung on the outer protective layers at the two ends of the cable. The hanging mode selects the electromagnet, and the power is supplied through the operating console. The towing wheel is driven by a lifting motor, and the power of the motor must meet the lifting requirement of the test. The lifting height of the lifting motor is 1260mm, and the lifting motor operates in a reciprocating manner. The towing wheel is not rotatable, so that the cable is prevented from deviating from the center during the test process to cause slipping.
The operation panel plays a controlling role in this embodiment, and its panel mainly includes the circuit breaker, switch knob, manual automatic switch-over knob, motor lift button, digital counter and counter switch, scram button, electric monitoring knob, monitoring self-checking button, power indicator, the lift pilot lamp, the fault indicator, count stop indicator, monitoring pilot lamp, alarm indicator, wherein, can reflect the state of the correspondence of operation panel through all kinds of pilot lamps, the user realizes controlling experimental flow through each button. For the operation table disclosed in this embodiment, the connection mode of each part is as follows: the switch knob is connected with the circuit breaker and is connected into the control loop of the operation table to control the on-off of the power supply of the operation table. And a motor control output circuit of the operating platform is connected with the lifter. And in the manual circuit part, a motor lifting button is respectively connected with a lifting indicator light and a contactor, and the working of the lifting motor can be controlled in a manual mode. And in the automatic circuit part, an emergency stop switch is connected with a lifting indicator light, a contactor and a time relay, 1-2 s of time delay is provided after each lifting and descending action to protect a lifting motor, and the action is stopped based on received upper and lower limiting signals sent by the lifting motor. The digital counter is connected with the counter switch to count by taking the received lower limit signal as an operation period, can preset operation times and display the current operation times, and stores the count after power failure. The alarm bell is connected with the time relay and the current contactor, and the alarm duration can be set.
For the monitoring part of the operating table, four wire cores of the tested cable are electrified through an AC/DC transformer and connected with a protection resistor to protect a circuit. During test operation, the on-off of the wire cores is monitored in real time, each wire core forms an independent loop to be connected with a current relay, when any one wire core is short-circuited or broken, the test is immediately stopped, the digital counter records the current operation times, and an alarm bell gives an alarm. And when short circuit or open circuit does not occur in the test period, the test is stopped and an alarm prompt is sent out after the test is operated for preset times. The self-checking button is connected with the current relay and has a self-checking function.
The design of the embodiment meets the general safety technical requirement of the rubber jacketed flexible cable for the coal mine shuttle car of 0.66/1.14kV rated voltage of the general safety technical requirement of the safety sign of the mining product-the cable for coal mine, and the requirement for the test item of the anti-winding drag performance, provides an objective reference basis for the safety performance of the cable, meets the requirement for ensuring the safety performance of the cable to meet the requirement, and has very important significance for improving the safety performance of the cable.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (9)
1. The shuttle car flexible cable bending resistance dragging performance testing device for the coal mine is characterized by comprising a main frame, dragging wheels and an operation table, wherein an upper pulley block and a lower pulley block are respectively arranged at the upper part and the lower part of the main frame;
the dragging wheel positioned between the third pulley and the fourth pulley is connected with a lifting motor and used for controlling the dragging wheel to move along the up-and-down direction; the outer protecting layers at two ends of the tested cable are respectively hung with a counterweight, the two suspended counterweights are respectively positioned at the outer sides of the first pulley and the second pulley, and the tested cable sequentially acts on the upper end of the first pulley, the lower end of the third pulley, the upper end of the towing wheel, the lower end of the fourth pulley and the upper end of the second pulley, so that the tested cable is in a winding state;
the cable core in the tested cable is electrically connected with the operating platform and used for detecting the on-off of the circuit of the cable core, and the operating platform is also electrically connected with the lifting motor.
2. The test device for testing the anti-winding dragging performance of the soft cable of the shuttle car for the coal mine according to claim 1, wherein the dragging wheel is arranged below the lifting motor, and the dragging wheel is non-rotatably connected with the lifting machine.
3. The testing device for the winding drag resistance of the soft cable of the shuttle car for the coal mine according to claim 2, wherein the weight member is a heavy weight with a weight of 150 KG; the operation platform is also connected with an electromagnet, and the heavy hammer is hung on the tested cable through the electromagnet.
4. The test device for testing the winding drag resistance of the soft cable of the shuttle car for the coal mine as claimed in claim 3, wherein the diameter of the drag wheel is smaller than the distance between the third pulley and the fourth pulley.
5. The device for testing the winding drag resistance of the flexible cable of the coal mine shuttle car according to claim 1, wherein when a plurality of wire cores are included in the tested cable, each wire core is electrically connected with the operating platform to form an independent loop.
6. The testing device for testing the winding drag resistance of the soft cable of the shuttle car for the coal mine as claimed in claim 5, wherein the operating platform comprises:
the AC/DC transformer is connected with the wire core and used for electrifying;
the current relay is connected with the wire core and used for controlling the on-off of the wire;
and the alarm bell is used for giving an alarm prompt after the test is stopped.
7. The testing device for testing the winding drag resistance of the soft cable of the shuttle car for the coal mine as claimed in claim 1, wherein the operating platform comprises: the switch knob and the circuit breaker are connected and used for controlling the on-off of the power supply of the operating console; and the motor control output circuit is electrically connected with the lifter.
8. The test device for testing the anti-winding drag performance of the soft cable of the coal mine shuttle car according to claim 1, wherein the operating platform further comprises: scram switch, lift pilot lamp, contactor, time relay, wherein, scram switch is connected with lift pilot lamp, contactor, time relay electricity.
9. The test device for testing the anti-winding drag performance of the soft cable of the coal mine shuttle car according to claim 1, wherein the operating platform further comprises: and the digital counter and the counter switch are used for counting and storing the running period of the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221491967.0U CN217688356U (en) | 2022-06-15 | 2022-06-15 | Shuttle car flexible cable bending and dragging resistance test device for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221491967.0U CN217688356U (en) | 2022-06-15 | 2022-06-15 | Shuttle car flexible cable bending and dragging resistance test device for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217688356U true CN217688356U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221491967.0U Active CN217688356U (en) | 2022-06-15 | 2022-06-15 | Shuttle car flexible cable bending and dragging resistance test device for coal mine |
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| Country | Link |
|---|---|
| CN (1) | CN217688356U (en) |
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2022
- 2022-06-15 CN CN202221491967.0U patent/CN217688356U/en active Active
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