Delay control device of automatic unlocking device for paratrooper

Abstract

The invention relates to a delay control device of an automatic unlocking device for paratroopers. The delay control device is characterized by comprising a pointer, a flat plate assembly, a dial, a sector gear assembly, a transmission gear assembly, a first spring, a second spring, a lock needle, an adjusting wheel assembly, a transition ratchet wheel assembly and a balance wheel assembly. According to the invention, the time error of the automatic unlocking device can be accurately debugged and controlled, the operation method is simple and convenient, and the assembly efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of assembly of automatic unlocking devices for paratroopers, and in particular to a structure for controlling time performance of an automatic unlocking device and an assembly and debugging method thereof. Background Art

[0002] The automatic paratrooper unlocking device is required to operate after a set delay time after the paratrooper jumps out of the aircraft cabin, opening the parachute bag and allowing the paratrooper to land smoothly. Therefore, the automatic unlocking device must have a delay function. Since the paratrooper's mission varies from jump to jump, the required delay time after the paratrooper jumps out of the aircraft cabin varies. The automatic unlocking device's delay function must be easily and quickly adjusted to meet the user's needs. Summary of the Invention

[0003] The purpose of the present invention is to provide a structure for effectively controlling the time performance of an automatic unlocking device and a matching assembly and debugging method thereof, so as to realize convenient and quick adjustment of the delay function of the automatic unlocking device.

[0004] The technical solution of the present invention is:

[0005] Provided is a time delay control device for an automatic unlocking device for paratroopers, the time delay control device comprising a pointer 2, a flat plate assembly 5, a dial 6, a fan gear assembly 7, a transmission gear assembly 8, a first spring 14, a second spring 15, a locking pin 16, an adjusting wheel assembly 17, a transition gear connected to a ratchet wheel 18, and an adjusting pendulum connected to a balance wheel 19;

[0006] The plate assembly 5 includes an upper plate 27, a lower plate 28, a first support 29, a third support 43, a sector gear shaft 30, and a second support 31. The first support 29, the third support 43, the sector gear shaft 30, and the second support 31 are supported between the upper plate 27 and the lower plate 28, so that the upper plate 27 and the lower plate 28 are arranged parallel to each other. A corner of the lower plate 28 protrudes relative to the upper plate.

[0007] The fan gear assembly 7 includes a fan gear 32, a brake shaft 33, a brake arm 34, and a bayonet 35. The fan gear 32 is rotatably mounted on the fan gear shaft 30, and the fan gear 32 is rotatably provided with a brake shaft 33. The brake shaft is provided with a brake arm 34, and the end of the brake arm forms a bayonet 35. The second spring 15 is provided between the brake pad 34 and the second support 31.

[0008] The pointer 2 includes a needle 20 and a bushing 21, which are fixed together. The pointer 2 is coaxially connected to the transmission gear assembly 8 and rotates as a whole. The relative angle between the needle 20 and the bushing 21 can be adjusted.

[0009] The transmission gear assembly 8 comprises a transmission gear 22 and a transmission pinion 23 which rotate coaxially and integrally;

[0010] The adjusting wheel assembly 17 comprises an adjusting pinion 36 and an adjusting wheel 37 which rotate coaxially and integrally;

[0011] The transition ratchet assembly 18 comprises a transition gear 38 and a transition pinion 39 which rotate coaxially and integrally;

[0012] The balance wheel assembly 19 comprises an adjusting pendulum 40 and a balance wheel 41 which rotate coaxially and integrally; the balance wheel 41 has a slot;

[0013] The fan gear 32 is meshed with the transmission pinion 23, the transmission gear 22 is meshed with the transition pinion 39, the transition gear 38 is meshed with the adjustment pinion 36, and the adjustment wheel 37 is meshed with the adjustment pendulum 40; the said bayonet 35 is used to receive the thrust output by the power source and push the fan gear to swing, so that the transmission pinion 23, the transmission gear 22, the transition pinion 39, the transition gear 38, the adjustment pinion 36 and the adjustment wheel 37 can be linked together. When the said locking pin is inserted into the slot of the said balance wheel 41 so that the balance wheel is locked, the adjustment pendulum 40 can lock the adjustment wheel 37, and the bayonet 35 cannot be pushed in the opposite direction;

[0014] The first spring 14 is provided between the fan gear 32 and the upper plate 27; when there is no power source output, the fan gear 32 is reset;

[0015] The dial 6 is fixedly connected to the upper plate 27, and the pointer 2 is coaxially fixed to the transmission pinion 23; the pointer matches the dial and can indicate the position of the pointer;

[0016] The upper plate 27 is provided with a waist-shaped hole, and the brake plate shaft 33 is slidably arranged in the waist-shaped hole;

[0017] The transmission gear assembly 8 , the adjusting wheel assembly 17 , the transition ratchet assembly 18 , the balance wheel assembly 19 and the fan gear assembly 7 are all located between the upper plate 27 and the lower plate 28 .

[0018] Furthermore, the upper ends of the first pillar 29 , the third pillar 43 , the sector gear shaft 30 and the second pillar 31 all pass through the upper plate 27 and are all connected to the mounting nut 4 .

[0019] Furthermore, the transmission pinion 23 is pressed into the journal bushing of the transmission gear and fixed by a large cylindrical pin 25 .

[0020] Furthermore, washers 9 are provided between each support of the plate assembly and the upper plate 27 .

[0021] Furthermore, the brake plate 11 is fixed to the upper plate 27 by the countersunk screw 10, and the adjusting nut 12 and the adjusting screw 13 are installed on the brake plate 11, so that rotating the adjusting screw can push the bayonet 35 to determine the initial position of the bayonet.

[0022] Furthermore, the adjusting pendulum 40 and the balance wheel 41 can be locked together by a locking pin 42 .

[0023] Furthermore, the pointer 2 is coaxially fixed to the transmission gear assembly 8 via the pointer screw 1 .

[0024] Furthermore, the transition pinion 39 is pressed into the journal bushing of the transition gear 38 and fixed as a whole.

[0025] During adjustment, the lock pin 16 is inserted into the slot of the balance wheel to lock the balance wheel 19, so that all wheels and gears stop running, the brake pad 34 is locked, and the delay mechanism is in the initial state. After the lock pin is pulled out, the power source of the delay mechanism starts to run, and the delay begins. When the power source pushes the brake arm 34, the delay ends. The total delay time As from the start of the delay to the end of the delay is measured by the test equipment;

[0026] According to the measurement results, compare the total delay time Bs required for the delay mechanism. If A=B, the total delay time debugging is completed, and the adjusting nut 12 and the adjusting screw 13 do not need to be adjusted. If A>B, rotate the adjusting screw 13 to increase the angle α between the brake pad and the lower plate, thereby reducing the total delay time. If A<B, rotate the adjusting screw 13 to reduce the angle α between the brake pad and the lower plate, thereby increasing the total delay time. After debugging, recheck the total delay time As according to step 10. If A=B, the total delay time debugging is completed. If A≠B, re-debug according to the above steps until A=B.

[0027] Insert the locking pin 16 into the slot to put the time delay mechanism in its initial state. Pull out the locking pin 16, and the time delay mechanism starts working. The transmission gear assembly 8 drives the pointer 20 to rotate. When the pointer 20 aligns with the time scale Cs on the dial 6, insert the locking pin 16 to stop the gear train. Then put the time delay mechanism into the test equipment, pull out the locking pin 16, and measure the delay time Ds from this point to the end of the delay.

[0028] Compare Cs and Ds. If C=D, the debugging is completed. If C>D, remove the pointer screw 1 and adjust the position of the needle 20 relative to the pointer sleeve 21 to the left by an angle β, β=0.7×(C-D). If C<D, remove the pointer screw 1 and adjust the position of the needle 20 relative to the pointer sleeve 21 to the right by an angle γ, γ=0.7×(D-C). After debugging, recheck the delay time Ds. If C=D, the total delay time debugging is completed. If C≠D, re-debug until C=D.

[0029] The advantages of the present invention are that the present invention realizes accurate debugging and control of the time error of the automatic unlocking device, and the operation method is simple and the assembly efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of the delay control device.

[0031] Figure 2 It is a structural diagram of the delay control device.

[0032] Figure 3 It is a top view of the delay control device.

[0033] Figure 4 This is a schematic diagram of the lock needle.

[0034] Figure 5 This is a schematic diagram of the locking pin being locked.

[0035] Figure 6 It is a partial structural diagram of the delay control device.

[0036] Figure 7 It is a structural cross-sectional view of the pointer.

[0037] Figure 8 It is a diagram of the structure of the pointer.

[0038] Figure 9a It is a structural diagram of the transmission gear.

[0039] Figure 9b It is a structural diagram of the transmission gear assembly.

[0040] Figure 10a It is a structural cross-sectional view of the transmission pinion.

[0041] Figure 10b It is a structural front view of the transmission pinion.

[0042] Figure 11a It is a structural diagram of the flat panel assembly.

[0043] Figure 11b It is a structural diagram of the flat panel assembly.

[0044] Figure 12a It is a structural cross-sectional view of the fan gear assembly.

[0045] Figure 12b This is the structural front view of the fan gear assembly.

[0046] Figure 12c It is a structural diagram of the fan gear assembly.

[0047] Figure 13a It is a structural diagram of the second spring.

[0048] Figure 13b It is a structural diagram of the first spring.

[0049] Figure 14a It is a structural schematic diagram of the transition ratchet assembly.

[0050] Figure 14b It is a structural schematic diagram of the transition ratchet assembly.

[0051] Figure 15a It is a structural front view of the adjusting wheel assembly.

[0052] Figure 15b It is a structural side view of the adjusting wheel assembly.

[0053] Figure 15c Schematic diagram of the structure of the adjusting wheel assembly.

[0054] Figure 16a This is a front view of the structure of the balance wheel assembly.

[0055] Figure 16b It is a structural cross-sectional view of the balance wheel assembly.

[0056] Figure 17a It is a partial cross-sectional view of the structure of the delay control device.

[0057] Figure 17b It is a partial cross-sectional view of the structure of the delay control device.

[0058] Figure 18 It is the working diagram of the delay control device.

[0059] Figure 19 It is the working diagram of the delay control device.

[0060] Figure 20 It is the working diagram of the delay control device.

[0061] Figure 21a This is a schematic diagram of the pointer adjustment process.

[0062] Figure 21b This is a schematic diagram of the pointer adjustment process.

[0063] Figure 21c This is a schematic diagram of the pointer adjustment process.

[0064] Among them, 1-pointer screw, 2-pointer, 3-screw, 4-nut, 5-plate assembly, 6-dial, 7-fan gear assembly, 8-transmission gear assembly, 9-washer, 10-countsunk screw, 11-brake plate, 12-adjusting nut, 13-adjusting screw, 14-first spring, 15-second spring, 16-soft lock needle, 17-pinion with adjustment wheel, 18-transition gear with ratchet, 19-adjusting pendulum with balance wheel, 20-pointer, 21-bushing, 22-transmission gear Wheel, 23-transmission pinion, 24-small cylindrical pin, 25-large cylindrical pin, 26-transmission gear bushing, 27-upper plate, 28-lower plate, 29-first pillar, 30-sector gear shaft, 31-second pillar, 32-sector gear, 33-brake pad shaft, 34-brake pad, 35-brake column, 36-adjusting pinion, 37-adjusting wheel, 38-transition gear, 39-transition pinion, 40-adjusting pendulum, 41-balance wheel, 42-locking pin, 43-third pillar. DETAILED DESCRIPTION

[0065] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples can be described and these examples should not be construed as limited to the examples set forth herein. Instead, these examples are described so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those skilled in the art.

[0066] Provided is a time delay control device for an automatic unlocking device for paratroopers, the time delay control device comprising a pointer 2, a flat plate assembly 5, a dial 6, a fan gear assembly 7, a transmission gear assembly 8, a first spring 14, a second spring 15, a locking pin 16, an adjusting wheel assembly 17, a transition gear connected to a ratchet wheel 18, and an adjusting pendulum connected to a balance wheel 19;

[0067] The plate assembly 5 includes an upper plate 27, a lower plate 28, a first support 29, a third support 43, a sector gear shaft 30, and a second support 31. The first support 29, the third support 43, the sector gear shaft 30, and the second support 31 are supported between the upper plate 27 and the lower plate 28, so that the upper plate 27 and the lower plate 28 are arranged parallel to each other. A corner of the lower plate 28 protrudes relative to the upper plate.

[0068] The fan gear assembly 7 includes a fan gear 32, a brake shaft 33, a brake arm 34, and a bayonet 35. The fan gear 32 is rotatably mounted on the fan gear shaft 30, and the fan gear 32 is rotatably provided with a brake shaft 33. The brake shaft is provided with a brake arm 34, and the end of the brake arm forms a bayonet 35. The second spring 15 is provided between the brake pad 34 and the second support 31.

[0069] The pointer 2 includes a needle 20 and a bushing 21, which are fixed together. The pointer 2 is coaxially connected to the transmission gear assembly 8 and rotates as a whole. The relative angle between the needle 20 and the bushing 21 can be adjusted.

[0070] The transmission gear assembly 8 comprises a transmission gear 22 and a transmission pinion 23 which rotate coaxially and integrally;

[0071] The adjusting wheel assembly 17 comprises an adjusting pinion 36 and an adjusting wheel 37 which rotate coaxially and integrally;

[0072] The transition ratchet assembly 18 comprises a transition gear 38 and a transition pinion 39 which rotate coaxially and integrally;

[0073] The balance wheel assembly 19 comprises an adjusting pendulum 40 and a balance wheel 41 which rotate coaxially and integrally; the balance wheel 41 has a slot;

[0074] The fan gear 32 is meshed with the transmission pinion 23, the transmission gear 22 is meshed with the transition pinion 39, the transition gear 38 is meshed with the adjustment pinion 36, and the adjustment wheel 37 is meshed with the adjustment pendulum 40; the said bayonet 35 is used to receive the thrust output by the power source and push the fan gear to swing, so that the transmission pinion 23, the transmission gear 22, the transition pinion 39, the transition gear 38, the adjustment pinion 36 and the adjustment wheel 37 can be linked together. When the said locking pin is inserted into the slot of the said balance wheel 41 so that the balance wheel is locked, the adjustment pendulum 40 can lock the adjustment wheel 37, and the bayonet 35 cannot be pushed in the opposite direction;

[0075] The first spring 14 is provided between the fan gear 32 and the upper plate 27; when there is no power source output, the fan gear 32 is reset;

[0076] The dial 6 is fixedly connected to the upper plate 27, and the pointer 2 is coaxially fixed to the transmission pinion 23; the pointer matches the dial and can indicate the position of the pointer;

[0077] The upper plate 27 is provided with a waist-shaped hole, and the brake plate shaft 33 is slidably arranged in the waist-shaped hole;

[0078] The transmission gear assembly 8 , the adjusting wheel assembly 17 , the transition ratchet assembly 18 , the balance wheel assembly 19 and the fan gear assembly 7 are all located between the upper plate 27 and the lower plate 28 .

[0079] Table 1 Automatic unlocking device time error requirements (S)

[0080] Working point 2 3 4 5 6 Normal temperature error (25±10)℃ ±0.12 ±0.20 ±0.20 ±0.30 ±0.30

[0081] Table 2 Automatic unlocking device time error inspection results (S)

[0082] Working point 2 3 4 5 6 Normal temperature (25±10)℃ 2.06 3.11 4.05 5.22 6.21

[0083] The description of various advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples disclosed. Many modifications and variations will be apparent to those skilled in the art. In addition, different advantageous examples may describe different advantages compared to other advantageous examples. The selected example or examples are chosen and described to best illustrate the principles of the examples, their practical application, and to enable those skilled in the art to understand the disclosure with various examples with various modifications suitable for the particular use contemplated.

Claims

1. A time delay control device for an automatic unlocking device for paratroopers, characterized in that: The time delay control device comprises a pointer, a plate assembly, a dial, a fan gear assembly, a transmission gear assembly, a first spring, a second spring, a locking needle, an adjustment wheel assembly, a transition ratchet assembly and a balance wheel assembly; The plate assembly includes an upper plate, a lower plate, a first support, a third support, a fan gear shaft and a second support; the first support, the third support, the fan gear shaft and the second support are supported between the upper plate and the lower plate, so that the upper plate and the lower plate are arranged in parallel; a corner of the lower plate protrudes relative to the upper plate; The fan gear assembly includes a fan gear, a brake shaft, a brake arm and a bayonet; the fan gear is rotatably mounted on the fan gear shaft, and a brake shaft is rotatably provided on the fan gear, the brake shaft is provided with a brake arm, and the end of the brake arm forms a bayonet; a second spring is provided between the brake pad and the second pillar; The pointer includes a needle and a bushing, and the needle and the bushing are fixed as one; the pointer is coaxially connected with the transmission gear assembly and rotates as one; the relative angle between the needle and the bushing can be adjusted; The transmission gear assembly is a transmission gear and a transmission pinion that rotate coaxially and integrally; The adjusting wheel assembly comprises an adjusting pinion and an adjusting wheel which rotate coaxially and integrally; The transition ratchet assembly is a transition gear and a transition pinion that rotate coaxially and integrally; The balance wheel assembly comprises an adjusting pendulum and a balance wheel which rotate coaxially and integrally; the balance wheel has a slot; The fan gear is meshed with the transmission pinion, the transmission gear is meshed with the transition pinion, the transition gear is meshed with the adjustment pinion, and the adjustment wheel is meshed with the adjustment swing piece; the bayonet is used to receive the thrust output by the power source and push the fan gear to swing, so that the transmission pinion, the transmission gear, the transition pinion, the transition gear, the adjustment pinion and the adjustment wheel can be linked, and when the locking pin is inserted into the slot of the balance wheel so that the balance wheel is locked, the adjustment swing piece can lock the adjustment wheel, and the bayonet cannot be pushed in the opposite direction; The first spring is arranged between the fan gear and the upper plate, and resets the fan gear after no power source is output; The dial is fixedly connected to the upper plate, and the pointer is coaxially fixed to the transmission pinion; the pointer matches the dial and can indicate the position of the pointer; The upper plate is provided with a waist-shaped hole, and the brake plate shaft is slidably arranged in the waist-shaped hole; The transmission gear assembly, the regulating wheel assembly, the transition ratchet assembly, the balance wheel assembly and the fan gear assembly are all located between the upper plate and the lower plate.

2. The time delay control device of the automatic unlocking device for paratroopers according to claim 1 is characterized in that: The upper ends of the first pillar, the third pillar, the sector gear shaft and the second pillar all pass through the upper plate and are connected with the mounting nuts.

3. The time delay control device of the automatic unlocking device for paratroopers according to claim 1 is characterized in that: The drive pinion is pressed into the drive gear's journal bushing and secured by a large cylindrical pin.

4. The time delay control device of the automatic unlocking device for paratroopers according to claim 1 is characterized in that: Washers are arranged between each support column of the flat plate assembly and the upper flat plate.

5. The time delay control device of the automatic unlocking device for paratroopers according to claim 1 is characterized in that: The brake plate is fixed on the upper plate by countersunk screws, and the adjusting nut and the adjusting screw are installed on the brake plate, so that the locking pin can be pushed by rotating the adjusting screw to determine the initial position of the locking pin.

6. The time delay control device of the automatic unlocking device for paratroopers according to claim 1, characterized in that: The adjusting pendulum and the balance wheel can be locked together by a locking pin.

7. The time delay control device of the automatic unlocking device for paratroopers according to claim 1 is characterized in that: The pointer is fixed coaxially with the transmission gear assembly through a pointer screw.

8. The time delay control device of the automatic unlocking device for paratroopers according to claim 1 is characterized by: The transition pinion is pressed into the journal bushing of the transition gear and fixed as a whole.

Images