CN221078077U - Helicopter electric winch performance test platform - Google Patents
Helicopter electric winch performance test platform Download PDFInfo
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- CN221078077U CN221078077U CN202323147542.5U CN202323147542U CN221078077U CN 221078077 U CN221078077 U CN 221078077U CN 202323147542 U CN202323147542 U CN 202323147542U CN 221078077 U CN221078077 U CN 221078077U
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- 238000011056 performance test Methods 0.000 title claims abstract description 24
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
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- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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Abstract
The utility model discloses a helicopter electric winch performance test platform, and relates to the field of test platforms. The device comprises a table body frame, a helicopter electric winch mounting seat, a spring compensation device and a winding device; the spring compensation device sequentially comprises a speed measuring fixed pulley, a movable pulley and a tension fixed pulley from top to bottom; the winding device comprises two torque motors, a winding drum shaft and a winding drum assembly. The utility model can meet the performance test requirement of the helicopter electric winch, simultaneously strengthen the protection of the winch steel wire rope, and improve the quality of the outgoing steel wire rope and the safety and convenience of the operation and use of the test platform.
Description
Technical Field
The utility model relates to the field of test platforms, in particular to a helicopter electric winch performance test platform.
Background
The helicopter electric winch uses electric power as driving force to lift the load by winding a steel wire rope or a cable. The device is widely applied to the fields of military use, ocean, civilian life and the like at present, and can finish the work of personnel lifesaving, cargo hoisting, high-altitude operation and the like. The helicopter electric winch system must perform systematic detection on the performance after delivery, inspection and overhaul. The steel wire rope is an important component part of the helicopter electric winch and is also an object of winch inspection and maintenance important inspection. The "healthy" status of the wire rope is not only related to whether the winch can work normally, but also to the safety in use.
The existing helicopter electric winch performance test equipment mainly has the following problems:
1) The test equipment generally adopts the reel of multilayer coiling to carry out the loading test to the winch, and in loading test process, all be direct contact between the winch wire rope of different layers, take place to scrape each other and scratch, can cause certain damage to wire rope.
2) The diameters of the winding drum and the pulley of the test equipment are generally smaller, and the smaller bending radius can cause certain damage to the steel wire rope in the loading test process.
3) The test equipment is generally lack of a tension compensation device, when the test equipment applies a large load to the winch, and when the winch is used for rapidly paying out the steel wire rope from a static state, the winding drum of the test equipment can possibly cause the phenomenon of rope loosening due to untimely response, wherein the instantaneous winding steel wire rope is slower than the rope paying-out speed of the winch.
4) Test equipment generally lacks reasonable wire rope tip fixed mode, and traditional wire rope tip is fixed on the reel and is had clamp plate fixed, voussoir fixed, screw to compress tightly three kinds of modes generally, and the three kinds of modes are all fixed through the one section that compresses tightly wire rope tip, can cause certain damage to wire rope, and the one section of helicopter electric winch wire rope tip directly links to each other with the lifting hook, belongs to the higher key position that just wear and tear easily of frequency of use.
5) The universal position of the winding drum of the test equipment is fixed, the wire rope is pulled by the wire arrangement device to carry out left-right displacement deflection to realize the tight arrangement of the wire rope on the winding drum, and the winch wire rope is also potentially damaged by the left-right displacement deflection mode.
6) The test equipment generally adopts electric mechanism to realize the inseparable winding displacement of wire rope on equipment reel, and control realization is comparatively complicated.
Therefore, it is necessary to develop a helicopter electric winch performance test platform which can meet the performance test requirement of the helicopter electric winch, strengthen the protection of winch steel wire ropes and improve the quality of outgoing steel wire ropes and the safety and convenience of the operation and the use of the test platform.
Disclosure of Invention
The utility model aims to overcome the defects of the background technology and provides a helicopter electric winch performance test platform.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: a helicopter electric winch performance test platform is characterized in that: the device comprises a platform frame, a helicopter electric winch mounting seat arranged at the top of the platform frame, a spring compensation device arranged in the platform frame and positioned below the helicopter electric winch mounting seat, and a winding device arranged in the platform frame and positioned below the spring compensation device;
The spring compensation device comprises a speed measuring fixed pulley, a movable pulley and a tension fixed pulley from top to bottom in sequence; the movable pulley is arranged on a first guide shaft, the left end of the first guide shaft is sleeved with a compression compensation spring, and the right end of the first guide shaft is sleeved with a compression damping spring; the tension fixed pulley is arranged on the tension pressure sensor;
The winding device comprises two torque motors, a winding drum shaft arranged between the two torque motors and a winding drum assembly arranged in the middle of the winding drum shaft;
One end of the steel wire rope is connected with the helicopter electric winch on the helicopter electric winch mounting seat, and the other end of the steel wire rope is connected with the winding drum component through the speed measuring fixed pulley, the movable pulley and the tension fixed pulley in sequence.
In the technical scheme, the device further comprises a displacement device, wherein the left end of the spool shaft is provided with a first synchronous belt wheel;
The displacement device is arranged in the table body frame and is positioned at the bottom of the winding device, and comprises a guide shaft support, a second guide shaft arranged on the guide shaft support, a nut rotary ball screw arranged on the guide shaft support, a sliding table arranged on the second guide shaft and a workbench panel arranged on the sliding table, wherein a second synchronous pulley is arranged on a nut of the nut rotary ball screw, and the sliding table is connected with the nut of the nut rotary ball screw; the first synchronous belt pulley is connected with the second synchronous belt pulley through a synchronous belt.
In the above technical scheme, the reel subassembly includes the reel main part, be provided with holding ring, stop hemisphere and latch segment on the reel main part, the one end that wire rope and reel subassembly are connected is the bulb structure, and the sphere of stop hemisphere and wire rope bulb structure's sphere phase-match, and the latch segment carries out spacingly to wire rope bulb structure, holding ring, stop hemisphere.
In the above technical scheme, the side protection door and the front protection door are arranged on the table body frame.
In the technical scheme, the diameters of the speed measuring fixed pulley, the movable pulley and the tension fixed pulley are the same, and the distances between the speed measuring fixed pulley, the movable pulley and the tension fixed pulley in the vertical direction are consistent with the diameters; the rope outlet position of the steel wire rope on the tension fixed pulley is consistent with the height of the upper surface of the winding drum component.
In the technical scheme, the diameters of the speed measuring fixed pulley, the movable pulley and the tension fixed pulley are all more than 30 times of the diameter of the steel wire rope.
In the technical scheme, the novel escalator further comprises an escalator frame, and the escalator frame is located on the right side of the table body frame.
In the above technical scheme, the fixed pulley that tests the speed is installed on the left side stand of stage body frame, first guiding axle left end is connected with the left side stand of stage body frame, the right-hand member is connected with the right side stand of stage body frame, draw pressure sensor to install on the left side stand of stage body frame.
In the technical scheme, a spiral rope groove is formed in the surface of the winding drum main body; the right initial half turn of the spiral rope groove is a transition rope groove, and the rest is a winding rope groove; the section of the rope groove of the transition rope groove gradually transits from deep to shallow to the winding rope groove, and the lead of the winding rope groove is larger than the diameter of the steel wire rope.
Compared with the prior art, the utility model has the following advantages:
1) The utility model can meet the performance test requirement of the helicopter electric winch, simultaneously strengthen the protection of the winch steel wire rope, and improve the quality of the outgoing steel wire rope and the safety and convenience of the operation and use of the test platform.
2) When the helicopter electric winch performs performance test, the torque motor is started, the torque output by the torque motor is controlled to reach the required load, and then the helicopter electric winch is operated to retract and release the steel wire rope for testing. The winding rope groove on the winding drum main body is consistent with the lead of the nut rotary ball screw, the transmission ratio of the first synchronous pulley on the winding drum shaft to the second synchronous pulley on the nut rotary ball screw is 1, when the winding drum assembly rotates for 1 circle, the winding device is integrally driven by the displacement device to move by a distance of one lead, the winding device and the displacement device realize mechanical synchronization, the winding device is ensured to always keep the position of the steel wire rope in a plane in the process of winding the steel wire rope, and the winding device cannot swing left and right.
3) In the test process, the compression compensation spring in the spring compensation device is under the action of the movable pulley in a compression state, when the helicopter electric winch executes rope paying-off operation from a static state, if the action response of the winding drum component of the winding device is not timely, the instantaneous winding speed is slower than the rope paying-off linear speed of the helicopter electric winch, the movable pulley can immediately move rightwards under the action of the compression compensation spring to compensate the rope paying-off distance of the steel wire rope, and the tension of the steel wire rope is kept stable.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic structural view of the spring compensating device.
Fig. 4 is a schematic structural view of the winding device.
Fig. 5 is a schematic structural view of the displacement device.
Fig. 6 is a schematic structural view of the spool assembly.
Fig. 7 is a schematic structural view of the reel body.
The device comprises a 1-platform body frame, a 11-side protective door, a 12-front protective door, a 2-helicopter electric winch mounting seat, a 3-spring compensation device, a 31-speed measuring fixed pulley, a 32-movable pulley, a 321-first guide shaft, a 322-compression compensation spring, a 323-compression damping spring, a 33-tension fixed pulley, a 34-tension pressure sensor, a 4-winding device, a 41-torque motor, a 411-coupling, a 42-winding shaft, a 421-first synchronous pulley, a 422-synchronous belt, a 43-winding drum assembly, a 431-winding drum main body, a 4311-spiral rope groove, a 432-positioning ring, a 433-stopping hemisphere, a 434-locking block, a 44-belt seat bearing, a 5-wire rope, a 6-displacement device, a 61-guide shaft support, a 62-second guide shaft, a 63-nut rotary ball screw, a 631-second synchronous pulley, a 64-sliding table, a 65-working platform panel and a 7-staircase frame.
Detailed Description
The following detailed description of the utility model is, therefore, not to be taken in a limiting sense, but is made merely by way of example. While the advantages of the utility model will become apparent and readily appreciated by reference to the following description.
As can be seen with reference to the accompanying drawings: the helicopter electric winch performance test platform comprises a platform body frame 1, a helicopter electric winch installation seat 2 arranged at the top of the platform body frame 1, a spring compensation device 3 arranged in the platform body frame 1 and positioned below the helicopter electric winch installation seat 2, and a winding device 4 arranged in the platform body frame 1 and positioned below the spring compensation device 3;
the spring compensation device 3 sequentially comprises a speed measuring fixed pulley 31, a movable pulley 32 and a tension fixed pulley 33 from top to bottom; the movable pulley 32 is arranged on a first guide shaft 321, a compression compensation spring 322 is sleeved at the left end of the first guide shaft 321, and a compression damping spring 323 is sleeved at the right end of the first guide shaft 321; the tension fixed pulley 33 is arranged on the tension pressure sensor 34;
The winding device 4 comprises two torque motors 41, a winding drum shaft 42 arranged between the two torque motors 41 and a winding drum assembly 43 arranged in the middle of the winding drum shaft 42; the two torque motors 41 are connected with the drum shaft 42 through a coupler 411; the spool shaft 42 is fixed by a seated bearing 44;
One end of the steel wire rope 5 is connected with the helicopter electric winch on the helicopter electric winch mounting seat 2, and the other end of the steel wire rope is connected with the winding drum assembly 43 through the speed measuring fixed pulley 31, the movable pulley 32 and the tension fixed pulley 33 in sequence.
The device also comprises a displacement device 6, wherein the left end of the spool shaft 42 is provided with a first synchronous belt wheel 421;
The displacement device 6 is arranged in the table body frame 1 and is positioned at the bottom of the winding device 4, the displacement device 6 comprises a guide shaft support 61, a second guide shaft 62 arranged on the guide shaft support 61, a nut rotary ball screw 63 arranged on the guide shaft support 61, a sliding table 64 arranged on the second guide shaft 62, and a workbench panel 65 arranged on the sliding table 64, a second synchronous pulley 631 is arranged on a nut of the nut rotary ball screw 63, and the sliding table 64 is connected with a nut of the nut rotary ball screw 63; the first pulley 421 and the second pulley 631 are connected by a timing belt 422.
The reel assembly 43 comprises a reel main body 431, a positioning ring 432, a stop hemisphere 433 and a locking block 434 are arranged on the reel main body 431, one end, connected with the reel assembly 43, of the steel wire rope 5 is of a ball head structure, the spherical surface of the stop hemisphere 433 is matched with the spherical surface of the steel wire rope 5 ball head structure, and the locking block 434 limits the steel wire rope 5 ball head structure, the positioning ring 432 and the stop hemisphere 433 and prevents the steel wire rope 5 ball head structure from falling out of the reel main body 431.
The table body frame 1 is provided with a side protection door 11 and a front protection door 12.
The diameters of the speed measuring fixed pulley 31, the movable pulley 32 and the tension fixed pulley 33 are the same, and the distances between the speed measuring fixed pulley 31, the movable pulley 32 and the tension fixed pulley 33 in the vertical direction are consistent with the diameters; the rope-out position of the wire rope 5 on the tension fixed pulley 33 coincides with the height of the upper surface of the reel assembly 43, whereby the wire rope 5 is kept horizontal on both the movable pulley 32 and the tension fixed pulley 33.
The diameters of the speed measuring fixed pulley 31, the movable pulley 32 and the tension fixed pulley 33 are more than 30 times of the diameter of the steel wire rope 5, and the large enough bending radius can be ensured without damaging the steel wire rope 5.
Also comprises an escalator frame 7, wherein the escalator frame 7 is positioned on the right side of the table body frame 1.
The fixed pulley 31 for measuring the speed is arranged on the left upright post of the table body frame 1, the left end of the first guide shaft 321 is connected with the left upright post of the table body frame 1, the right end of the first guide shaft is connected with the right upright post of the table body frame 1, and the tension and pressure sensor 34 is arranged on the left upright post of the table body frame 1.
A spiral rope groove 4311 is formed on the surface of the reel body 431; the initial half turn on the right side of the spiral rope groove 4311 is a transition rope groove 4312, and the rest is a winding rope groove 4313; because the limiting structure of the ball head structure of the steel wire rope 5 causes the limitation of the space position on the reel main body 431, the lead of the transition rope groove 4312 is larger, the section of the transition rope groove 4312 gradually transits to the winding rope groove 4313 from deep to shallow, and the lead of the winding rope groove 4313 is slightly larger than the diameter of the winch steel wire rope.
In actual use, the helicopter electric winch mounting seat 2 is formed by welding a section bar and a steel plate, and is used as a test station of the helicopter electric winch for mounting and fixing the helicopter electric winch. The platform body frame 1 is formed by welding sections such as rectangular steel and is divided into an upper layer and a lower layer, wherein the upper layer is mainly used for setting a mounting station of a helicopter electric winch and a platform for standing, maintaining and operating personnel, and the lower layer is mainly used for setting mechanisms such as a spring compensation device 3, a winding device 4 and the like. The staircase frame 7 is formed by welding sections such as rectangular steel, and is mainly convenient for operators to enter the upper layer of the table body frame 1 up and down. The spring compensation device 3 is mainly used for compensating the tension and the stroke of the steel wire rope 5 and keeping the tension of the steel wire rope 5 stable. The winding device 4 is mainly used for loading the helicopter electric winch and storing and accommodating the steel wire rope 5. The displacement device 6 is mainly used for driving the winding device 4 to move left and right so as to realize tight wire arrangement of the steel wire rope 5 on the winding drum main body 431.
The pulley shaft of the speed measuring fixed pulley 31 is connected with an encoder for measuring the linear speed of the steel wire rope 5. The movable pulley 32 is mounted on the first guide shaft 321, and the movable pulley 32 moves leftward, i.e., compresses the compensation spring 322, and moves rightward, i.e., compresses the damper spring 323. The tension fixed pulley 33 is mounted on the tension pressure sensor 34. The steel wire rope 5 is kept horizontal on the movable pulley 32 and the tension fixed pulley 33, and the tension value measured by the tension pressure sensor 34 is 2 times of the tension of the steel wire rope 5.
The torque motor 41 has good torque characteristics, and the output torque is stable, so that the torque motor is particularly suitable for the working conditions of large load and low rotating speed; because the torque motor 441 is a direct-drive use mode, other mechanisms such as a speed reducer are omitted, the torque motor has the advantages of high response speed and space saving, meanwhile, the torque motor 41 is provided with an encoder, the rotating speed of a motor rotor is consistent with that of the drum shaft 42, and the linear speed of the steel wire rope 5 can be indirectly measured.
The first synchronous pulley 421 drives the second synchronous pulley 631 through the synchronous belt 422, and then drives the nut of the nut rotary ball screw 63 to rotate, and the nut of the nut rotary ball screw 63 rotates one turn, driving the sliding table 64 to displace by the distance of the lead of the nut rotary ball screw 63.
Before the performance test is carried out on the helicopter electric winch, the helicopter electric winch is firstly arranged on the helicopter electric winch mounting seat 2, then the helicopter electric winch is operated to pay out a section of steel wire rope 5, the steel wire rope 5 is firstly wound on the spring compensation device 3, sequentially passes through the speed measuring fixed pulley 31, the movable pulley 32 and the tension fixed pulley 33, finally reaches the winding device 4, the ball head structure of the steel wire rope 5 is fixed on the winding drum assembly 43, and the steel wire rope 5 is wound to the winding rope groove 4313 from the transition rope groove 4312 on the winding drum main body 431. After confirming that the site personnel are all evacuated from the lower layer of the table frame 1, the side protection door 11 and the front protection door 12 are closed.
When the helicopter electric winch performs performance test, the torque motor 41 is started, the torque output by the torque motor 41 is controlled to reach the required load, and then the helicopter electric winch is operated to retract and release the steel wire rope 5 for testing. The winding rope groove 4313 on the winding drum main body 431 keeps consistent with the lead of the nut rotary ball screw 63, the transmission ratio of the first synchronous pulley 421 on the winding drum shaft 42 to the second synchronous pulley 631 on the nut rotary ball screw 63 is 1, when the winding drum assembly 43 rotates for 1 circle, the whole winding device 4 is driven by the displacement device 6 to move by the distance of the lead of the nut rotary ball screw 63, the mechanical synchronization of the winding device 4 and the displacement device 6 is realized, the winding device 4 is ensured to always keep the position of the steel wire rope 5 in a plane in the space in the process of winding the steel wire rope 5, and the steel wire rope 5 cannot swing left and right.
When the helicopter electric winch releases the steel wire rope 5, the torque motor 41 works in an electric mode, the winding drum assembly 43 rotates clockwise to actively wind up the rope from the view point of fig. 1, and the winding device 4 is driven by the displacement device 6 to move rightwards as a whole. When the helicopter electric winch withdraws the steel wire rope 5, the torque motor 41 works in a power generation mode, the winding drum assembly 43 rotates anticlockwise to passively unwind the rope, and the winding device 4 is driven by the displacement device 6 to move leftwards as a whole.
In the test process, the compression compensation spring 322 in the spring compensation device 3 is under the action of the movable pulley 32, when the helicopter electric winch executes the rope paying-off operation from the static state, if the action response of the winding drum component 43 of the winding device 4 is not timely, the instantaneous winding speed is slower than the rope paying-off linear speed of the helicopter electric winch, the movable pulley 32 can immediately move rightwards under the action of the compression compensation spring 322, the rope paying-off distance of the steel wire rope 5 is compensated, and the tension of the steel wire rope 5 is kept stable.
In the test process, the rotation speed values measured by the encoders of the speed measuring fixed pulley 31 and the torque motor 41 can be converted into the linear speed of the steel wire rope 5 of the helicopter electric winch, and the tension value measured by the tension pressure sensor 34 connected with the tension fixed pulley 33 is twice the tension of the steel wire rope 5.
Other non-illustrated parts are known in the art.
Claims (9)
1. A helicopter electric winch performance test platform is characterized in that: the device comprises a platform frame (1), a helicopter electric winch mounting seat (2) arranged at the top of the platform frame (1), a spring compensation device (3) arranged in the platform frame (1) and positioned below the helicopter electric winch mounting seat (2), and a winding device (4) arranged in the platform frame (1) and positioned below the spring compensation device (3);
the spring compensation device (3) sequentially comprises a speed measuring fixed pulley (31), a movable pulley (32) and a tension fixed pulley (33) from top to bottom; the movable pulley (32) is arranged on a first guide shaft (321), a compression compensation spring (322) is sleeved at the left end of the first guide shaft (321), and a compression damping spring (323) is sleeved at the right end of the first guide shaft (321); the tension fixed pulley (33) is arranged on the tension pressure sensor (34);
The winding device (4) comprises two torque motors (41), a winding drum shaft (42) arranged between the two torque motors (41) and a winding drum assembly (43) arranged in the middle of the winding drum shaft (42);
One end of the steel wire rope (5) is connected with the helicopter electric winch on the helicopter electric winch mounting seat (2), and the other end of the steel wire rope is connected with the winding drum assembly (43) through the speed measuring fixed pulley (31), the movable pulley (32) and the tension fixed pulley (33) in sequence.
2. The helicopter electrical winch performance test platform of claim 1, wherein: the device also comprises a displacement device (6), and a first synchronous belt wheel (421) is arranged at the left end of the drum shaft (42);
The displacement device (6) is arranged in the table body frame (1) and is positioned at the bottom of the winding device (4), the displacement device (6) comprises a guide shaft support (61), a second guide shaft (62) arranged on the guide shaft support (61), a nut rotary ball screw (63) arranged on the guide shaft support (61), a sliding table (64) arranged on the second guide shaft (62) and a workbench panel (65) arranged on the sliding table (64), a second synchronous pulley (631) is arranged on a nut of the nut rotary ball screw (63), and the sliding table (64) is connected with a nut of the nut rotary ball screw (63); the first synchronous pulley (421) and the second synchronous pulley (631) are connected by a synchronous belt (422).
3. The helicopter electrical winch performance test platform of claim 2, wherein: the reel assembly (43) comprises a reel main body (431), a positioning ring (432), a stop hemisphere (433) and a locking block (434) are arranged on the reel main body (431), one end, connected with the reel assembly (43), of the steel wire rope (5) is of a ball head structure, the spherical surface of the stop hemisphere (433) is matched with the spherical surface of the ball head structure of the steel wire rope (5), and the locking block (434) limits the ball head structure of the steel wire rope (5), the positioning ring (432) and the stop hemisphere (433).
4. A helicopter electrical winch performance test platform according to claim 3, wherein: the table body frame (1) is provided with a side protection door (11) and a front protection door (12).
5. The helicopter electrical winch performance test platform of claim 4, wherein: the diameters of the speed measuring fixed pulley (31), the movable pulley (32) and the tension fixed pulley (33) are the same, and the distances between the speed measuring fixed pulley (31), the movable pulley (32) and the tension fixed pulley (33) in the vertical direction are consistent with the diameters; the rope outlet position of the steel wire rope (5) on the tension fixed pulley (33) is consistent with the height of the upper surface of the winding drum assembly (43).
6. The helicopter electrical winch performance test platform of claim 5, wherein: the diameters of the speed measuring fixed pulley (31), the movable pulley (32) and the tension fixed pulley (33) are all more than 30 times of the diameter of the steel wire rope (5).
7. The helicopter electrical winch performance test platform of claim 6, wherein: the novel escalator also comprises an escalator frame (7), wherein the escalator frame (7) is positioned on the right side of the table body frame (1).
8. The helicopter electrical winch performance test platform of claim 7, wherein: the speed measuring fixed pulley (31) is arranged on a left side upright post of the table body frame (1), the left end of the first guide shaft (321) is connected with the left side upright post of the table body frame (1), the right end of the first guide shaft is connected with a right side upright post of the table body frame (1), and the tension and pressure sensor (34) is arranged on the left side upright post of the table body frame (1).
9. The helicopter electrical winch performance test platform of claim 8, wherein: a spiral rope groove (4311) is formed in the surface of the winding drum main body (431); the right initial half turn of the spiral rope groove (4311) is a transition rope groove (4312), and the rest is a winding rope groove (4313); the rope groove section of the transition rope groove (4312) gradually transits from deep to shallow to the winding rope groove (4313), and the lead of the winding rope groove (4313) is larger than the diameter of the steel wire rope (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323147542.5U CN221078077U (en) | 2023-11-22 | 2023-11-22 | Helicopter electric winch performance test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323147542.5U CN221078077U (en) | 2023-11-22 | 2023-11-22 | Helicopter electric winch performance test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221078077U true CN221078077U (en) | 2024-06-04 |
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ID=91261388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323147542.5U Active CN221078077U (en) | 2023-11-22 | 2023-11-22 | Helicopter electric winch performance test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221078077U (en) |
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2023
- 2023-11-22 CN CN202323147542.5U patent/CN221078077U/en active Active
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