CN107036796B - Comprehensive testing device and method for vehicle-mounted fire winch - Google Patents
Comprehensive testing device and method for vehicle-mounted fire winch Download PDFInfo
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- CN107036796B CN107036796B CN201710388577.8A CN201710388577A CN107036796B CN 107036796 B CN107036796 B CN 107036796B CN 201710388577 A CN201710388577 A CN 201710388577A CN 107036796 B CN107036796 B CN 107036796B
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- G01M13/00—Testing of machine parts
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Abstract
The utility model relates to a comprehensive testing device of a vehicle-mounted fire winch, which comprises a control system, a power mechanism, a breaking testing device and a winch testing device, wherein the power mechanism is arranged on the control system; the breaking test oil cylinder and the first traction rope test piece are respectively and vertically fixedly connected with the experimental test arm; the tail end of the first traction rope test piece is fixedly connected with the first fixing device; the winch testing device comprises a winch tension sensor, a winch mounting rack and a power roller device; the tested winch is fixed on the winch mounting frame, and the two ends of the second traction rope test piece are respectively wound on the tested winch and the winding drum. The utility model has wide application range; with an industrial brake, the range of load forces is adjustable; winch quick installation and haulage rope length adjustment, haulage rope extension angle is adjustable, test adjustment under the different angles of convenient simulation.
Description
Technical Field
The utility model relates to a comprehensive testing device of a vehicle-mounted fire winch, and belongs to the technical field of vehicle-mounted fire winch testing.
Background
The vehicle-mounted winch is provided with an electric winch and a hydraulic winch, the load of the existing winch testing device is divided into manual and automatic, the manual device needs to be manually operated through reading data of an instrument, the automatic testing device can test the electric winch and the hydraulic winch, and the load loading, the testing and the recording result are automatically carried out according to a set program. Chinese patent publication No. CN203148658U discloses a "winch testing apparatus", which is only used for testing the load resistance of the entire winch mechanism. In addition, the Chinese patent with the publication number of CN201233291Y discloses an electrohydraulic control winch intelligent test bench which can test the tension value and the linear speed of an electric winch and a hydraulic winch.
However, for the electric winch, the testing device can not test the wire tension, the wire speed and the motor current of the electric winch under the premise of different loads; for the hydraulic winch, the testing device can not test the wire tension, the wire speed, the motor pressure and the motor flow of the hydraulic winch under the premise of different loads. Meanwhile, the device can not test the working performance of the winch traction rope from different angles, the braking performance of a winch brake and the breaking test of winch accessories.
The existing winch testing device can test an electric winch and a hydraulic winch, but can only test the tension value and the linear speed of the winch, can not simulate variable working conditions of different loads, has fewer testing items, and can not test and test winch accessories (winch fixing brackets, traction ropes, lifting hooks and the like), so that the comprehensiveness, convenience and accuracy of testing are insufficient.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the existing vehicle-mounted fire winch testing device has single function, cannot obtain testing parameters such as voltage, current and the like for an electric motor, and cannot directly obtain testing parameters such as flow, pressure and the like for a hydraulic motor; the test load force is not adjustable, so that different loads cannot be conveniently simulated; the working performance of the winch traction rope at different angles cannot be conveniently simulated; the breaking test of the winch accessory is inconvenient to test, and the test accuracy is low; the winch is subjected to larger initial impact force during testing, is easy to damage, and has larger difference with the actual condition of the initial stress of the vehicle-mounted fire winch.
The utility model adopts the following technical scheme:
the comprehensive testing device of the vehicle-mounted fire winch comprises a control system 26, a power mechanism, a breaking testing device and a winch testing device; the power mechanism comprises a hydraulic pump station 1, a distribution box 25 and a voltage-current sensor 24; the breaking testing device comprises a breaking test oil cylinder 3, an experimental test arm 2, a first traction rope test piece 5 and a breaking force sensor 6; the breaking test oil cylinder 3 and the first traction rope test piece 5 are respectively and vertically fixedly connected with the experimental test arm 2; the tail end of the first traction rope test piece 5 is fixedly connected with a first fixing device 7; the winch testing device comprises a second tension sensor 21, a winch mounting frame 20 and a power roller device; the power roller device comprises a driving motor 13, an electromagnetic clutch 15, a magnetic powder brake 8 with adjustable braking force, a winding drum 10 and a rotating speed-torque sensor 12; the winch to be tested is fixed on the winch mounting frame 20, and the second traction rope 16 is wound on the winch to be tested 19 and the winding drum 10 at two ends respectively; the control system 26 is respectively connected with the breaking test oil cylinder 3, the breaking force sensor 6, the second tension sensor 21, the magnetic powder brake 8, the rotating speed-torque sensor 12 and the driving motor 13 in a signal mode.
Further, the winch testing device further comprises a spring pretensioning force adjusting device 23, the winch mounting frame 20 is arranged on the fixed guide rail 18 and is connected with the spring pretensioning force adjusting device 23, and the winch mounting frame 20 is provided with a rotary positioning structure for adjusting the angle between the winch to be tested and the second traction rope 16; during testing, the winch mount 20 slides along the stationary rail 18 to a point of force balance.
Further, a second protective cover 17 is arranged outside the second traction rope 16; the first traction rope test piece 5 is externally provided with a first protection cover 4.
Further, the winch testing device further comprises a speed reducer 14, a first elastic coupling 9 used for being connected with the magnetic powder brake, and a second elastic coupling 11 used for being connected with the electromagnetic clutch.
Still further, the rotary positioning structure comprises a circular guide rail 27, and a dial 28 is arranged on the circular guide rail.
In the test method of the comprehensive test device of the vehicle-mounted fire winch, an electric tested winch 19 is arranged on a winch mounting frame 20, the winch mounting frame 20 is connected with a second fixing device 22 through a second tension sensor 21, a spring pretension adjusting device 23 is arranged on the second fixing device 22, and different pretension forces are applied to tested winches 19 of different models so as to be close to actual working conditions; winch mount 20 slides on stationary guide rail 18 to facilitate installation of tested winch 19 and adjustment of the length of second traction rope 16, and adjusts the direction and angle of traction rope extension through circular guide rail 27 on the rotating disk; the second traction rope 16 is pulled out from the electric tested winch 19, passes through the second protection cover 17, and the traction hook end of the second traction rope 16 is mounted on the winding drum 10; the winding drum 10 is respectively connected with a magnetic powder brake 8 and a rotating speed-torque sensor 12 through a first elastic coupling 9 and a second elastic coupling 11, and the rotating speed-torque sensor 12 is connected into a speed reducer 14 driven by a driving motor 13 through an electromagnetic clutch 15; the winch power interface is connected with a distribution box 25, and the distribution box provides voltage and current as power sources; when in test, the electromagnetic clutch 15 is disconnected, the tested winch 19 receives and pulls the second traction rope 16, and the second traction rope 16 pulls the winding drum 10 to rotate; the control system 26 presets load parameters to send commands to the magnetic powder brake 8, the magnetic powder brake 8 provides load torque to be transmitted to the winding drum 10, and loads under different working conditions are simulated; the rotation speed-torque sensor 12 records the traction speed of the traction rope 16, the second tension sensor 21 records the traction tension, and the voltage-current sensor 24 records the voltage and current of the electric tested winch 19; after the test, the electromagnetic clutch 15 is turned on, and the traction rope 16 is wound on the winding drum 10 by the driving of the driving motor 13, so that the continuous reliability test of the electric tested winch 19 can be performed; all operations and data recording are accomplished by the control system 26.
The utility model has the beneficial effects that:
1) The device can simultaneously realize the test requirements of the hydraulic winch and the electric winch; and simultaneously, carrying out tensile strength tests for testing components such as the winch fixing support, the steel wire rope, the lock hook and the like.
2) The device adopts the elastic coupling through multistage transmission ratio amplification, so that the winch testing device is very compact in structure, reasonable in overall system layout and capable of reducing occupied area.
3) The device sets up spring pretension adjusting device, cooperates fixed guide rail for test system can simulate multiple reality operating mode, makes the test be close more by the operating mode of test piece. The device can also test tested pieces with different models and different specifications, achieves the aim of multiple purposes of one machine, and plays an initial protection role on a tested winch;
4) The industrial brake is used for providing stable preset load force in a relative sliding state, the range of the load force is adjustable, and the test diversity is increased;
5) The stepping motor is used as a driving motor, the dragging force is large, the dragging speed is stable and adjustable, and continuous repeated tests can be carried out.
6) The long cylinder is used as a power source for breaking test, and has the advantages of large tensile force, stable output and small impact force.
7) Winch installation is convenient and flexible, winch quick installation and traction rope length adjustment are facilitated through the sliding-rotating winch installation frame, the traction rope stretching angle is adjustable, and test adjustment under different angles is convenient to simulate.
8) The hydraulic pump station can simultaneously meet the pressure and flow requirements of the hydraulic winch and the breaking test oil cylinder, and the pressure and flow regulation range is large.
9) Meanwhile, the tensile test and the stress test of the winch can be performed, the test efficiency is high, the test function is complete, and the degree of intensification is very high.
Drawings
FIG. 1 is a schematic diagram of the structure of the comprehensive test device of the vehicle-mounted fire winch.
FIG. 2 is a schematic view of the winch mounting bracket and the stationary guide and rotating dials thereon.
In the figure, 1, a hydraulic pump station 2, a test arm 3, a breaking test cylinder 4, a first protection cover 5, a first traction rope test piece 6, a breaking force sensor 7, a first fixing device 8, a magnetic powder brake 9, a first elastic coupling 10, a winding drum 11, a second elastic coupling 12, a rotation speed-torque sensor 13, a driving motor 14, a speed reducer 15, an electromagnetic clutch 16, a second traction rope 17, a second protection cover 18, a fixed guide rail 19, a tested winch 20, a winch mounting rack 21, a second tension sensor 22, a second fixing device 23, a spring pretensioning force adjusting device 24, a voltage-current sensor 25, a distribution box 26 and a control system
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
Referring to fig. 1-2, in a test method of a comprehensive test device of a vehicle-mounted fire winch, an electric tested winch 19 is mounted on a winch mounting frame 20, the winch mounting frame 20 is connected with a second fixing device 22 through a second tension sensor 21, a spring pretension adjusting device 23 is mounted on the second fixing device 22, and different pretension forces are applied to tested winches 19 of different models so as to be close to actual conditions; winch mount 20 slides on stationary guide rail 18 to facilitate installation of tested winch 19 and adjustment of the length of second traction rope 16, and adjusts the direction and angle of traction rope extension through circular guide rail 27 on the rotating disk; the second traction rope 16 is pulled out from the electric tested winch 19, passes through the second protection cover 17, and the traction hook end of the second traction rope 16 is mounted on the winding drum 10; the winding drum 10 is respectively connected with a magnetic powder brake 8 and a rotating speed-torque sensor 12 through a first elastic coupling 9 and a second elastic coupling 11, and the rotating speed-torque sensor 12 is connected into a speed reducer 14 driven by a driving motor 13 through an electromagnetic clutch 15; the winch power interface is connected with a distribution box 25, and the distribution box provides voltage and current as power sources; when in test, the electromagnetic clutch 15 is disconnected, the tested winch 19 receives and pulls the second traction rope 16, and the second traction rope 16 pulls the winding drum 10 to rotate; the control system 26 presets load parameters to send commands to the magnetic powder brake 8, the magnetic powder brake 8 provides load torque to be transmitted to the winding drum 10, and loads under different working conditions are simulated; the rotation speed-torque sensor 12 records the traction speed of the traction rope 16, the second tension sensor 21 records the traction tension, and the voltage-current sensor 24 records the voltage and current of the electric tested winch 19; after the test, the electromagnetic clutch 15 is turned on, and the traction rope 16 is wound on the winding drum 10 by the driving of the driving motor 13, so that the continuous reliability test of the electric tested winch 19 can be performed; all operations and data recording are accomplished by the control system 26.
Referring to fig. 1-2, a test winch 19 is mounted on winch mount 20, and winch mount 20 is slidable on stationary guide rail 18 to facilitate the installation of test winch 19 and the adjustment of the length of second traction rope 16. Winch mount 20 may be adjusted in direction and angle by a circular guide 27 on the rotating disc, a locking means is provided, and a dial 28 is mounted around circular guide 27 to facilitate adjustment of the direction and angle of extension of traction ropes 16.
Referring to fig. 1, a test winch 19 is mounted, a rated load tension test is performed, then winch braking is performed, an electromagnetic clutch 15 is turned on, a magnetic powder brake 8 is turned off, a driving force is applied by a driving motor 13, driving torque is transmitted to a winding drum 10, a second traction rope 16 is tightened and pulled, the driving force is gradually increased, and the braking force of the test winch 19 is recorded by a second tension sensor 21.
Referring to fig. 1, winch attachments (winch fixing brackets, traction ropes, hooks, etc.) are mounted to the first traction rope test piece 5 at a position where one end of the traction rope is fixed to the test arm 2 and the other end is fixed to the first fixing device 7 through the break force sensor 6. The test arm 2 is fixed on the top of a hydraulic rod of the breaking test oil cylinder 3, the breaking test oil cylinder 3 is connected with the hydraulic pump station 1, and the hydraulic pump station 1 provides hydraulic power. During the test, the breaking test oil cylinder 3 pushes against the hydraulic rod, the hydraulic rod drives the test arm 2 to move, breaking tests are carried out on winch accessories (winch fixing brackets, traction ropes, lifting hooks and the like), and the tension sensor 6 records breaking force. The winch accessory is protected by a first protective cover 4.
For the electric winch, the testing device can test the wire tension, the wire speed and the motor current of the electric winch under the premise of different loads, the load force is adjustable by 0-200 kN, and continuous reliability test can be carried out; for the hydraulic winch, the testing device can test the wire tension, the wire speed, the motor pressure and the motor flow of the hydraulic winch under the premise of different loads, the load force is adjustable by 0-200 kN, and the continuous reliability test can be carried out; the tested winch pulls the working performance of the rope at different angles; the braking performance of the winch brake, providing a stable predetermined load force in a relatively sliding state; breaking test of winch accessories (winch fixing bracket, traction rope, hook, etc.). Tension: the drag speed is adjustable with 0-1000 kN.
The device can simultaneously realize the test requirements of the hydraulic winch and the electric winch. Simultaneously, carrying out tensile strength tests for testing components such as a winch fixing bracket, a steel wire rope, a lock hook and the like; the winch is convenient and flexible to install, the winch is convenient to install rapidly and the length of the traction rope is convenient to adjust through the sliding-rotating winch installing frame, the extension angle of the traction rope is adjustable, and the special vehicle-mounted fire winch performance test requirement is met; the device adopts the elastic coupling through multistage transmission ratio amplification, so that the winch testing device has a very compact structure; the long cylinder is used as a power source of a breaking test, the stepping motor is used as a driving motor, the dragging force is large, and the dragging speed is stable and adjustable.
The foregoing is a preferred embodiment of the present utility model, and various changes and modifications may be made therein by those skilled in the art without departing from the general inventive concept, and such changes and modifications should be considered as falling within the scope of the claimed utility model.
Claims (4)
1. The utility model provides a vehicle-mounted fire winch's comprehensive testing device which characterized in that:
comprises a control system (26), a power mechanism, a breaking testing device and a winch testing device;
the power mechanism comprises a hydraulic pump station (1), a distribution box (25) and a voltage-current sensor (24);
the breaking testing device comprises a breaking test oil cylinder (3), an experimental test arm (2), a first traction rope test piece (5) and a breaking force sensor (6); the breaking test oil cylinder (3) and the first traction rope test piece (5) are respectively and vertically fixedly connected with the experimental test arm (2); the tail end of the first traction rope test piece (5) is fixedly connected with a first fixing device (7);
the winch testing device comprises a second tension sensor (21), a winch mounting rack (20) and a power roller device; the power roller device comprises a driving motor (13), an electromagnetic clutch (15), a magnetic powder brake (8) with adjustable braking force, a winding drum (10) and a rotating speed-torque sensor (12); the tested winch is fixed on the winch mounting frame (20), and the two ends of the second traction rope (16) are respectively wound on the tested winch (19) and the winding drum (10);
the control system (26) is respectively connected with the breaking test oil cylinder (3), the breaking force sensor (6), the second tension sensor (21), the magnetic powder brake (8), the rotating speed-torque sensor (12) and the driving motor (13) in a signal manner;
the winch testing device further comprises a spring pretensioning force adjusting device (23) and a winch mounting frame (20) which are arranged on the fixed guide rail (18) and are connected with the spring pretensioning force adjusting device (23), and the winch mounting frame (20) is provided with a rotary positioning structure for adjusting the angle between a tested winch and the second traction rope (16); during testing, the winch mounting rack (20) slides to a stress balance position along the fixed guide rail (18);
a second protective cover (17) is arranged outside the second traction rope (16); the first traction rope test piece (5) is externally provided with a first protection cover (4).
2. The comprehensive testing device of the vehicle-mounted fire winch according to claim 1, wherein: the winch testing device further comprises a speed reducer (14), a first elastic coupler (9) used for being connected with the magnetic powder brake, and a second elastic coupler (11) used for being connected with the electromagnetic clutch.
3. The comprehensive testing device of the vehicle-mounted fire winch according to claim 1, wherein: the rotary positioning structure comprises a circular guide rail (27), and a dial (28) is arranged on the circular guide rail.
4. A test method of the comprehensive test device of the vehicle-mounted fire winch according to claim 3, which is characterized in that:
the electric tested winch (19) is arranged on the winch mounting frame (20), the winch mounting frame (20) is connected with the second fixing device (22) through the second tension sensor (21), the spring pretension adjusting device (23) is arranged on the second fixing device (22), and different pretension forces are applied to the tested winches (19) of different models so as to be close to the actual working condition;
the winch mounting rack (20) slides on the fixed guide rail (18) so as to facilitate the installation of the tested winch (19) and the adjustment of the length of the second traction rope (16), and the extending direction and angle of the traction rope are adjusted through the circular guide rail (27) on the rotating disc;
the second traction rope (16) is pulled out from the electric tested winch (19), passes through the second protective cover (17), and the traction hook end of the second traction rope (16) is mounted on the winding drum (10); the winding drum (10) is respectively connected with the magnetic powder brake (8) and the rotating speed-torque sensor (12) through the first elastic coupling (9) and the second elastic coupling (11), and the rotating speed-torque sensor (12) is connected into a speed reducer (14) driven by a driving motor (13) through an electromagnetic clutch (15); the winch power interface is connected with a distribution box (25), and the distribution box provides voltage and current as power sources; when in test, the electromagnetic clutch (15) is disconnected, the tested winch (19) receives and pulls the second traction rope (16), and the second traction rope (16) pulls the winding drum (10) to rotate; the control system (26) is used for presetting load parameters and sending commands to the magnetic powder brake (8), the magnetic powder brake (8) provides load torque to be transmitted to the winding drum (10) and simulates loads under different working conditions; the rotating speed-torque sensor (12) records the traction speed of the traction rope (16), the second traction sensor (21) records the traction tension, and the voltage-current sensor (24) records the voltage and current of the electric tested winch (19); after the test is finished, the electromagnetic clutch (15) is connected, and the traction rope (16) is wound on the winding drum (10) by the driving of the driving motor (13), so that the continuous reliability test of the electric tested winch (19) can be performed; all operations and data recording are performed by the control system (26).
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| CN201710388577.8A CN107036796B (en) | 2017-05-27 | 2017-05-27 | Comprehensive testing device and method for vehicle-mounted fire winch |
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| CN201710388577.8A CN107036796B (en) | 2017-05-27 | 2017-05-27 | Comprehensive testing device and method for vehicle-mounted fire winch |
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| CN107036796B true CN107036796B (en) | 2023-08-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520750B (en) * | 2019-01-08 | 2023-11-03 | 北京市城市管理研究院（北京市环境卫生监测中心） | Traction braking anti-collision system of test vehicle on test pavement |
| CN109632284A (en) * | 2019-01-24 | 2019-04-16 | 重庆市特种设备检测研究院 | Load moment limiter performance test methods and its length and angle sensor loading bench |
| CN112378630A (en) * | 2020-07-17 | 2021-02-19 | 襄阳达安汽车检测中心有限公司 | Electric capstan test device |
| CN112857824A (en) * | 2021-01-06 | 2021-05-28 | 长安大学 | Engineering machine tool traction performance test bench |
| CN113176086B (en) * | 2021-05-11 | 2022-09-20 | 国家电网有限公司 | Electric insulation scaffold testing device and testing method thereof |
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| US9908756B2 (en) * | 2012-09-28 | 2018-03-06 | Parker-Hannifin Corporation | Constant pull winch controls |
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