CN107621360A - A kind of hydraulic damper damping time measurement apparatus - Google Patents
A kind of hydraulic damper damping time measurement apparatus Download PDFInfo
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- CN107621360A CN107621360A CN201710585388.XA CN201710585388A CN107621360A CN 107621360 A CN107621360 A CN 107621360A CN 201710585388 A CN201710585388 A CN 201710585388A CN 107621360 A CN107621360 A CN 107621360A
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- axle
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- hydraulic damper
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- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of hydraulic damper damping time measurement apparatus, including assembly pulley (1), mounting bracket (2), reinforcing disk (3), electric lock mechanism (4), time movement (5), force component (6)；Assembly pulley (1) is arranged on mounting bracket (2), disk (3) is reinforced rotatably to be arranged on mounting bracket (2), time movement (5) is arranged on mounting bracket (2), reinforcing disk (3) is controlled to rotate by its break-make, force component (6) applies pulling force by assembly pulley (1) to reinforcing disk (3).The present apparatus is simple in construction, requirement that is easy to operate and disclosure satisfy that the measurement of hydraulic damper damping time, and reduces dependence of the operating personnel to torque spanner and stopwatch, reduces human error.Beneficial to the operating efficiency for improving damping time measurement.
Description
Technical field
The invention belongs to Fixture Design technology, is related to a kind of helicopter hydraulic damper damping time measurement apparatus.
Background technology
After the completion of the assembling of helicopter hydraulic damper, when doing damping time measurement, 0N-98N is used in the two directions
Torque spanner applies 2.5Nm constant moment to rotor respectively so that rotor can be around stable ± 7 ° of the rotation of both direction
30 ', and its damping time is measured, the time is determined by standard stopwatch, human error has certain to product actual experimental value
Influence, and the influence can not eliminate to a certain degree.In order to improve this present situation, it is badly in need of a kind of effective ways now to solve the hardly possible
Topic.
The content of the invention
Present invention aims at a kind of brand-new hydraulic damper damping time measurement apparatus is provided, human error is reduced,
Improve the operating efficiency of damping time measurement.
The technical scheme is that：A kind of hydraulic damper damping time measurement apparatus, including assembly pulley 1, mounting bracket
2nd, disk 3, electric lock mechanism 4, time movement 5, force component 6 are reinforced；Assembly pulley 1 is arranged on mounting bracket 2, and reinforcing disk 3 is rotatable
Be arranged on mounting bracket 2 on, time movement 5 be arranged on mounting bracket 2 on, by its break-make come control reinforcing disk 3 rotate, force group
Part 6 applies pulling force by assembly pulley 1 to reinforcing disk 3.
Above-mentioned mounting bracket 2 includes：Axle sleeve 21, installing plate 22, block 23, angle iron frame 24；Installing plate 22 is consolidated by bolt
Due on angle iron frame 24, axle sleeve 21 is fixed on installing plate 22 by interference mode, and block 23 is bolted mode and consolidated
Due to installing plate 22；Assembly pulley 1 includes：Pulley 11, bearing 12, axle 17；Bearing 12 is arranged in pulley 11 by interference fit
Chamber, pulley 11 and axle 17 are additionally provided with bearing holder (housing, cover) 13, and bearing holder (housing, cover) 13 is connected and fixed to axle by gap fiting mode and pulley 11
On 17, axle 17 is fixed on installing plate 22 by packing ring 14, nut 15, spring washer 16；Reinforcing disk 3 includes：With salient point
Disk body 31, the 32, the 3rd axle sleeve 33 of hook；Electric lock mechanism 4 includes：Electromagnet 41, joint 42, bearing pin 43, cylinder lock 44, split nut
45, elastic washer 46, lock body 47, lock spring 48, lock shaft 49；Time movement 5 includes：Contact axle 51, touch base 52, spring 53, meter
When nut 54, microswitch 55, support 56, electrical secondmeter 57；Force component 6 includes：Nylon rope 61, scale pan 62, counterweight 63；Resistance
Buddhist nun's device is arranged on installing plate 22, and reinforcing disk 3 is arranged on the axle of damper；Scale pan 62, counterweight 63 pass through the and of nylon rope 61
The connection of hook 32, and direction is changed by pulley 11；Electromagnet 41 is arranged on joint 42 by bearing pin 43, the one end of lock shaft 49
Be connected by cylinder lock 44 with joint 42, the other end the 3rd axle sleeve 33 is carried out it is spacing, and then to reinforcing disk 3 carry out it is spacing；Lock
Body 47 is hollow structure, one end open, is enclosed on lock shaft 49, and spacing by the Step Shaft on lock shaft 49, and the endoporus of lock body 47 is straight
Footpath is more than the diameter of lock shaft 49, be provided between the two lock spring 48, lock spring 48 be enclosed on lock shaft 49, the other end of lock body 47 and
Lock spring 48 is fixed by split nut 45；Electrical secondmeter 57 is connected with microswitch 55 by wire, and touch base 52 is band step
Axle sleeve, and timing nut 54 is fixed on contact axle 51 is spacing on installing plate 22, and touch base 52 is additionally provided with spring with contact axle 51
53, and carried out by the step on contact axle 51 and timing nut 54 spacing, microswitch 55 is arranged on support by screw 56
On 56, support 56 is fixed with installing plate 22 by screw, and whether contact of the contact axle 51 with salient point controls microswitch 55
Break-make.
The above-mentioned position of force component 6 sets contact axle 51 and arrives damper axle center to reinforce the X-axis positive direction of the coordinate of disk 3
Distance for R and be arranged in the Y-axis positive direction of the reinforcing coordinate of disk 3, the angle that rotates is б in damper technique requirement, then band
The bump location for having the disk body 31 of salient point is【Rsin(-б)、Rcos(-б)】；If contact axle (51) arrives the distance in damper axle center
L, then the position of the 3rd axle sleeve (33) be【Lsin (180°+б)、Lcos(180°+б)】.
A kind of method for measuring helicopter hydraulic damper damping time, comprise the following steps：
Step 1：Hydraulic damper is fixed by bolts to the back side of installing plate 22, the circle that hydraulic damper axle passes through installing plate
Installing plate is stretched out in hole；
Step 2：The center square hole of disk 3 will be reinforced to be placed on the square shaft of hydraulic damper stretching installing plate 22 and fixed with nut；
Step 3：Lock shaft 49 in electric lock mechanism 4 is inserted in the reinforcing positioning hole of disk 3, prevents from reinforcing the rotation of disk 3；
Step 4：The nylon rope 61 for the component 6 that exerts a force is hooked to the hook 32 of reinforcing disk 3；
Step 5：Device for opening power switch, electric lock mechanism 4 it is electric after lock shaft 49 bounce back, reinforcing disk 3 loses spacing same
When by force component 6 tractive force act on, drive hydraulic damper rotated around axle center；
Step 6：While device for opening power switch, time movement 5 must be electric and starts timing；
Step 7：When the salient point on reinforcing disk 3 on coordinate Y-axis line touches the contact axle 51 of time movement 5, fine motion
55 dead electricity are switched, the pointer of electrical secondmeter 57 stops；
Step 8：Read damping time.
Beneficial effect：The present apparatus is simple in construction, it is easy to operate and disclosure satisfy that the measurement of hydraulic damper damping time will
Ask, and reduce dependence of the operating personnel to torque spanner and stopwatch, reduce human error.Beneficial to the work for improving damping time measurement
Make efficiency.
Brief description of the drawings
Fig. 1 is hydraulic damper damping time measurement apparatus front view and side view；
Fig. 2 is assembly pulley part shaft side figure；
Fig. 3 is mounting bracket schematic diagram；
Fig. 4 is reinforcing disk schematic diagram；
Fig. 5 is electric lock mechanism sectional view；
Fig. 6 is time movement schematic diagram.
Fig. 7 is force component diagram.
Embodiment
The present invention is described in further detail with reference to Figure of description.
Referring to Fig. 1, Fig. 2, Fig. 3.This hydraulic damper damping time measurement apparatus includes assembly pulley 1, mounting bracket 2, reinforcing
Disk 3, electric lock mechanism 4, time movement 5, force component 6；Assembly pulley 1 is arranged on mounting bracket 2, and reinforcing disk 3 is rotatably installed
On mounting bracket 2, time movement 5 is arranged on mounting bracket 2, controls reinforcing disk 3 to rotate by its break-make, force component 6 is logical
Cross assembly pulley 1 and pulling force is applied to reinforcing disk 3.
Mounting bracket 2 includes：Axle sleeve 21, installing plate 22, block 23, angle iron frame 24；Installing plate 22 is secured by bolts in
On angle iron frame 24, axle sleeve 21 is fixed on installing plate 22 by interference mode, and block 23 is bolted mode and is fixed on
Installing plate 22；Assembly pulley 1 includes：Pulley 11, bearing 12, axle 17；Bearing 12 is arranged on the inner chamber of pulley 11 by interference fit,
Pulley 11 and axle 17 are additionally provided with bearing holder (housing, cover) 13, and bearing holder (housing, cover) 13 is connected and fixed to axle 17 by gap fiting mode and pulley 11
On, axle 17 is fixed on installing plate 22 by packing ring 14, nut 15, spring washer 16；Reinforcing disk 3 includes：Disk with salient point
Body 31, the 32, the 3rd axle sleeve 33 of hook；Electric lock mechanism 4 includes：Electromagnet 41, joint 42, bearing pin 43, cylinder lock 44, split nut
45, elastic washer 46, lock body 47, lock spring 48, lock shaft 49；Time movement 5 includes：Contact axle 51, touch base 52, spring 53, meter
When nut 54, microswitch 55, support 56, electrical secondmeter 57；Force component 6 includes：Nylon rope 61, scale pan 62, counterweight 63；Resistance
Buddhist nun's device is arranged on installing plate 22, and reinforcing disk 3 is arranged on the axle of damper；Scale pan 62, counterweight 63 pass through the and of nylon rope 61
The connection of hook 32, and direction is changed by pulley 11；Electromagnet 41 is arranged on joint 42 by bearing pin 43, and the one end of lock shaft 49 leads to
Cylinder lock 44 is crossed to be connected with joint 42, the other end the 3rd axle sleeve 33 is carried out it is spacing, and then to reinforcing disk 3 carry out it is spacing；Lock body
47 be hollow structure, one end open, is enclosed on lock shaft 49, and spacing by the Step Shaft on lock shaft 49, the diameter of bore of lock body 47
More than the diameter of lock shaft 49, lock spring 48 is installed between the two, lock spring 48 is enclosed on lock shaft 49, the other end of lock body 47 and lock
Spring 48 is fixed by split nut 45；Electrical secondmeter 57 is connected with microswitch 55 by wire, and touch base 52 is with the level
Axle sleeve, and timing nut 54 are fixed on contact axle 51 is spacing on installing plate 22, and touch base 52 is additionally provided with spring 53 with contact axle 51,
And being carried out by the step on contact axle 51 and timing nut 54 spacing, microswitch 55 is arranged on support 56 by screw 56
On, support 56 is fixed with installing plate 22 by screw, and whether contact of the contact axle 51 with salient point controls the logical of microswitch 55
It is disconnected, as shown in Figure 4,5, 6.
The position of facility power component 6 sets contact axle 51 to damper axle center to reinforce the X-axis positive direction of the coordinate of disk 3
Distance is R and is arranged in the Y-axis positive direction of the reinforcing coordinate of disk 3, and the angle rotated in damper technique requirement is б, then carries
The bump location of the disk body 31 of salient point is【Rsin(-б)、Rcos(-б)】；If contact axle (51) arrives the distance in damper axle center
L, then the position of the 3rd axle sleeve (33) be【Lsin (180°+б)、Lcos(180°+б)】, as shown in Figure 7.
Method for measuring helicopter hydraulic damper damping time, comprises the following steps：
Step 1：Hydraulic damper is fixed by bolts to the back side of installing plate 22, the circle that hydraulic damper axle passes through installing plate
Installing plate is stretched out in hole；
Step 2：The center square hole of disk 3 will be reinforced to be placed on the square shaft of hydraulic damper stretching installing plate 22 and fixed with nut；
Step 3：Lock shaft 49 in electric lock mechanism 4 is inserted in the reinforcing positioning hole of disk 3, prevents from reinforcing the rotation of disk 3；
Step 4：The nylon rope 61 for the component 6 that exerts a force is hooked to the hook 32 of reinforcing disk 3；
Step 5：Device for opening power switch, electric lock mechanism 4 it is electric after lock shaft 49 bounce back, reinforcing disk 3 loses spacing same
When by force component 6 tractive force act on, drive hydraulic damper rotated around axle center；
Step 6：While device for opening power switch, time movement 5 must be electric and starts timing；
Step 7：When the salient point on reinforcing disk 3 on coordinate Y-axis line touches the contact axle 51 of time movement 5, fine motion
55 dead electricity are switched, the pointer of electrical secondmeter 57 stops；
Step 8：Read damping time.
Embodiment：By taking certain helicopter hydraulic damper as an example, technical requirements its loaded on damper rotor axle
During 7.4Nm, surveying must be between ± 0.5 second 7 seconds the time required to its rotor rotates ± 37.5 °.Power is utilized by raw mode
Square spanner loading 7.4Nm power makes it rotate 37.5 °, measures its damping time as 8 seconds.Operating procedure is as follows：
Step 1：Hydraulic damper is fixed by bolts to the back side of installing plate 22, the circle that hydraulic damper axle passes through installing plate
Installing plate is stretched out in hole；
Step 2：The center square hole of disk 3 will be reinforced to be placed on the square shaft of hydraulic damper stretching installing plate 22 and fixed with nut；
Step 3：Lock shaft 49 in electric lock mechanism 4 is inserted in the reinforcing positioning hole of disk 3, prevents from reinforcing the rotation of disk 3；
Step 4：The nylon rope 61 for the component 6 that exerts a force is hooked to the hook 32 of reinforcing disk 3；
Step 5：Device for opening power switch, electric lock mechanism 4 it is electric after lock shaft 49 bounce back, reinforcing disk 3 loses spacing same
When by force component 6 tractive force act on, drive hydraulic damper rotated around axle center；
Step 6：While device for opening power switch, time movement 5 must be electric and starts timing；
Step 7：When the salient point on reinforcing disk 3 on coordinate Y-axis line touches the contact axle 51 of time movement 5, fine motion
55 dead electricity are switched, the pointer of electrical secondmeter 57 stops；
Step 8：Operating personnel read damping time, are 7.2 seconds, judge that product is qualified.
The assembly pulley 1, mounting bracket 2, reinforcing disk 3, electric lock mechanism 4, time movement 5, force component 6 are welded by group
Match somebody with somebody and bolt mode is attached into hydraulic damper damping time measurement apparatus, surveyed using the hydraulic damper damping time
Device is measured, the hook 32 of reinforcing disk 3 is hooked by the nylon rope 61 for the component 6 that exerts a force, the insertion reinforcing of lock shaft 49 in electric lock mechanism 4
In the positioning hole of disk 3, prevent from reinforcing the rotation of disk 3.Device for opening power switch, electric lock mechanism 4 it is electric after lock shaft 49 bounce back, reinforce disk
3 are acted on while losing spacing by the tractive force of force component 6, drive hydraulic damper to be rotated around axle center, now, timing machine
Structure 5 must be electric and starts timing.When the salient point on reinforcing disk 3 on the coordinate Y-axis line touches the contact axle 51 of time movement 5,
The dead electricity of microswitch 55, the pointer of electrical secondmeter 59 stop, and operating personnel read damping time.
Claims (6)
- A kind of 1. hydraulic damper damping time measurement apparatus, it is characterised in that：Including assembly pulley (1), mounting bracket (2), reinforcing Disk (3), electric lock mechanism (4), time movement (5), force component (6)；Assembly pulley (1) is arranged on mounting bracket (2), reinforces disk (3) rotatably it is arranged on mounting bracket (2), time movement (5) is arranged on mounting bracket (2), is added by its break-make to control Power disk (3) rotates, and force component (6) applies pulling force by assembly pulley (1) to reinforcing disk (3).
- 2. hydraulic damper damping time measurement apparatus according to claim 1, it is characterised in that：Mounting bracket (2) includes： Axle sleeve (21), installing plate (22), block (23), angle iron frame (24)；Installing plate (22) is secured by bolts in angle iron frame (24) on, axle sleeve (21) is fixed on installing plate (22) by interference mode, and block (23) mode of being bolted is fixed on Installing plate (22).
- 3. hydraulic damper damping time measurement apparatus according to claim 1, it is characterised in that：Assembly pulley (1) includes： Pulley (11), bearing (12), axle (17)；Bearing (12) is arranged on pulley (11) inner chamber, pulley (11) and axle by interference fit (17) bearing holder (housing, cover) (13) is additionally provided with, bearing holder (housing, cover) (13) is connected and fixed to axle (17) by gap fiting mode and pulley (11) On, axle (17) is fixed on installing plate (22) by packing ring (14), nut (15), spring washer (16).
- 4. hydraulic damper damping time measurement apparatus according to claim 1, it is characterised in that：Reinforcing disk (3) includes： Disk body (31) with salient point, hook (32), the 3rd axle sleeve (33)；Electric lock mechanism (4) includes：Electromagnet (41), joint (42), Bearing pin (43), cylinder lock (44), split nut (45), elastic washer (46), lock body (47), lock spring (48), lock shaft (49)；Timing Mechanism (5) includes：Contact axle (51), touch base (52), spring (53), timing nut (54), microswitch (55), support (56), Electrical secondmeter (57)；Force component (6) includes：Nylon rope (61), scale pan (62), counterweight (63)；Damper is arranged on installing plate (22) on, reinforcing disk (3) is arranged on the axle of damper；Scale pan (62), counterweight (63) pass through nylon rope (61) and hook (32) connect, and direction is changed by pulley (11)；Electromagnet (41) is arranged on joint (42) by bearing pin (43), lock shaft (49) one end is connected by cylinder lock (44) with joint (42), and the other end is spacing to the progress of the 3rd axle sleeve (33), and then to reinforcing Disk (3) carries out spacing；Lock body (47) is hollow structure, one end open, is enclosed on lock shaft (49), and passes through the platform on lock shaft (49) Rank axle is spacing, and lock body (47) diameter of bore is more than lock shaft (49) diameter, is provided with lock spring (48), lock spring (48) between the two It is enclosed on lock shaft (49), lock body (47) other end and lock spring (48) are fixed by split nut (45)；Electrical secondmeter (57) and Microswitch (55) is connected by wire, and touch base (52) is axle sleeve with the level, and timing nut (54) limits contact axle (51) Position is fixed on installing plate (22), and touch base (52) is additionally provided with spring (53) with contact axle (51), and by contact axle (51) Step and timing nut (54) progress are spacing, and microswitch (55) is arranged on support (56) by screw (56), support (56) Fixed by screw with installing plate (22), whether contact of the contact axle (51) with salient point controls the break-make of microswitch (55).
- 5. hydraulic damper damping time measurement apparatus according to claim 1, it is characterised in that：Exert a force component (6) position Be set to reinforcing disk (3) coordinate X-axis positive direction, while set contact axle (51) to damper axle center distance as R and be arranged on add In the Y-axis positive direction of power disk (3) coordinate, the angle that rotates is б in damper technique requirement, then the disk body with salient point (31) Bump location is【Rsin(-б)、Rcos(-б)】；If contact axle (51) arrives the L of the distance in damper axle center, then the 3rd axle sleeve (33) position is【Lsin(180°+б)、Lcos(180°+б)】.
- A kind of 6. method for measuring helicopter hydraulic damper damping time, it is characterised in that comprise the following steps：Step 1：Hydraulic damper is fixed by bolts to installing plate (22) back side, the circular hole that hydraulic damper axle passes through installing plate Stretch out installing plate；Step 2：Disk (3) center square hole will be reinforced to be placed on the square shaft of hydraulic damper stretching installing plate (22) and fixed with nut；Step 3：By in lock shaft (49) insertion reinforcing disk (3) positioning hole in electric lock mechanism (4), prevent from reinforcing disk (3) rotation；Step 4：The nylon rope (61) for the component (6) that exerts a force is hooked to the hook (32) of reinforcing disk (3)；Step 5：Device for opening power switch, electric lock mechanism (4) it is electric after lock shaft (49) bounce back, reinforcing disk (3) lose it is spacing Acted on simultaneously by the tractive force of force component (6), drive hydraulic damper to be rotated around axle center；Step 6：While device for opening power switch, time movement (5) must be electric and starts timing；Step 7：It is micro- when the salient point in reinforcing disk (3) on coordinate Y-axis line touches the contact axle (51) of time movement (5) Dynamic switch (55) dead electricity, electrical secondmeter (57) pointer stop；Step 8：Read damping time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710585388.XA CN107621360B (en) | 2017-07-18 | 2017-07-18 | Damping time measuring device of hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710585388.XA CN107621360B (en) | 2017-07-18 | 2017-07-18 | Damping time measuring device of hydraulic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107621360A true CN107621360A (en) | 2018-01-23 |
| CN107621360B CN107621360B (en) | 2023-09-08 |
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ID=61088672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710585388.XA Active CN107621360B (en) | 2017-07-18 | 2017-07-18 | Damping time measuring device of hydraulic damper |
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| Country | Link |
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| CN (1) | CN107621360B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029948A (en) * | 2018-07-10 | 2018-12-18 | 茸明汽车科技（上海）有限公司 | damper detecting tool |
| CN112629837A (en) * | 2020-11-03 | 2021-04-09 | 哈尔滨哈飞航空工业有限责任公司 | Rotary damper damping coefficient testing device and measuring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1258115A (en) * | 1960-05-30 | 1961-04-07 | Improvements to timers | |
| CN101915680A (en) * | 2010-08-04 | 2010-12-15 | 慈溪市福尔达实业有限公司 | Device for testing return time of damper |
| CN204269347U (en) * | 2014-10-28 | 2015-04-15 | 武汉航达航空科技发展有限公司 | Damper test device |
| CN105203243A (en) * | 2015-09-14 | 2015-12-30 | 南京创维家用电器有限公司 | Measuring device and method for dynamic moment of damper |
-
2017
- 2017-07-18 CN CN201710585388.XA patent/CN107621360B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1258115A (en) * | 1960-05-30 | 1961-04-07 | Improvements to timers | |
| CN101915680A (en) * | 2010-08-04 | 2010-12-15 | 慈溪市福尔达实业有限公司 | Device for testing return time of damper |
| CN204269347U (en) * | 2014-10-28 | 2015-04-15 | 武汉航达航空科技发展有限公司 | Damper test device |
| CN105203243A (en) * | 2015-09-14 | 2015-12-30 | 南京创维家用电器有限公司 | Measuring device and method for dynamic moment of damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029948A (en) * | 2018-07-10 | 2018-12-18 | 茸明汽车科技（上海）有限公司 | damper detecting tool |
| CN112629837A (en) * | 2020-11-03 | 2021-04-09 | 哈尔滨哈飞航空工业有限责任公司 | Rotary damper damping coefficient testing device and measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107621360B (en) | 2023-09-08 |
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