CN108981501A - A kind of inner trajectory low speed friction power simulation test experiment platform - Google Patents
A kind of inner trajectory low speed friction power simulation test experiment platform Download PDFInfo
- Publication number
- CN108981501A CN108981501A CN201810630544.4A CN201810630544A CN108981501A CN 108981501 A CN108981501 A CN 108981501A CN 201810630544 A CN201810630544 A CN 201810630544A CN 108981501 A CN108981501 A CN 108981501A
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- Prior art keywords
- sleeve
- oil pressure
- hollow
- bore
- hollow oil
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention is specially a kind of inner trajectory low speed friction power simulation test experiment platform, solves the problems, such as that the friction testing of ammunition in hand is larger using being calculated that there are measuring accuracies.Sleeve-shaped simulation bore and line handspike motor and hollow oil pressure mandril are provided with above workbench, linear bearing seat is provided on sleeve-shaped simulation bore, bracket I is provided on line handspike motor, bracket II is provided on hollow oil pressure mandril, the push rod of line handspike motor is fixedly connected with sleeve-shaped simulation bore, the left and right ends portion of sleeve-shaped simulation bore is provided with cyclic annular limited block, cyclic annular felt pan is respectively and fixedly provided on the inside of two cyclic annular limited blocks, hollow test bullet is provided in sleeve-shaped simulation bore, hollow oil pressure mandril is connected to the right end of hollow test bullet, foil gauge is provided on the outer cylinder of hollow oil pressure mandril.The present invention not only simulates actual condition of the bullet under interior ballistic flight, but also directly can accurately obtain low speed friction power of the bullet under inner trajectory.
Description
Technical field
The present invention relates to Friction Force test device, specially a kind of inner trajectory low speed friction power simulation test experiment platform.
Background technique
The frictional force of ammunition is to restrict a key technology of new type ammunition research and development, if wanting to realize such ammunition
Technological break-through, it is necessary to obtain the friction value of such ammunition.
The frictional force of such ammunition can be by being calculated, but calculated value is obtained under theoretical assumed condition, with
Actual condition has more significant difference；The problems such as due to space, is difficult directly measurement in throw-off practice test and obtains such ammunition
Frictional force.
Summary of the invention
The present invention in order to solve the problems, such as that the friction testing of ammunition in hand is larger using being calculated that there are measuring accuracies,
Provide a kind of inner trajectory low speed friction power simulation test experiment platform.
The present invention is achieved by the following technical scheme: a kind of inner trajectory low speed friction power simulation test experiment platform, packet
Workbench is included, sleeve-shaped simulation bore and line handspike motor and hollow oil at left and right sides of it are provided with above workbench
Bear down on one bar, is provided with the linear bearing seat fixed with workbench on sleeve-shaped simulation bore, be provided on line handspike motor with
The fixed bracket I of workbench is provided with the bracket II fixed with workbench, the push rod of line handspike motor on hollow oil pressure mandril
It is fixedly connected with sleeve-shaped simulation bore, the left and right ends portion of sleeve-shaped simulation bore is provided with cyclic annular limited block, two ring-types
It is respectively and fixedly provided with cyclic annular felt pan on the inside of limited block, is provided with hollow test bullet, hollow oil pressure mandril in sleeve-shaped simulation bore
Left end protrude into sleeve-shaped simulation bore and with it is hollow test bullet right end be connected to, be arranged on the outer cylinder of hollow oil pressure mandril
There are several foil gauges.
When carrying out inner trajectory low speed friction power simulation test, it is attainable most that sleeve-shaped simulation bore is pushed to institute first
Secondly left end is forced into hollow test bullet outer surface into hollow oil pressure mandril and closely attaches in sleeve-shaped simulation bore
Surface then turns on line handspike motor, and it is at the uniform velocity axial that the push rod of line handspike motor pushes sleeve-shaped simulation bore to do to the right
It moves, at this time support force F suffered by hollow oil pressure mandrilNIt is equal with frictional force f suffered by hollow test bullet, i.e., to hollow examination
The measurement for testing bullet frictional force is converted to measurement to hollow oil pressure mandril stress, and hollow oil pressure mandril is in support force FNWork
With lower generation deformation, i.e. small strain, which is captured by foil gauge, according to generalized Hooke law, stress and strain
Relationship have: σ=E × ε, then frictional force f is represented by f=FN=σ × A, A is the sectional area of hollow oil pressure mandril in formula,
So far frictional force f suffered by hollow test bullet can be calculated, the friction testing for overcoming ammunition in hand, which uses, to be calculated
There is a problem of that measuring accuracy is larger.
A kind of inner trajectory low speed friction power simulation test experiment platform further includes constant pressure pump, deformeter and linear motor driving
Device；The output end of foil gauge and the input terminal of deformeter connect；The input terminal of line handspike motor and linear motor driver
Output end connection, is provided with the high-pressure hose being connected to the two, high-pressure hose between the right end and constant pressure pump of hollow oil pressure mandril
On be provided with pressure gauge.
The setting of deformeter is that the small strain of foil gauge capture is realized frictional force through its filter and amplification recording process
Measurement；Constant pressure pump, which can control, generates different pressure, and is observed in real time by pressure gauge.
The right side wall of hollow test bullet is provided with the female union communicated therewith, and hollow oil pressure mandril left part
It is threadedly coupled with female union；Hollow oil pressure mandril right end is connect with high-pressure hose left end by high-pressure hose connector.
The setting of high-pressure hose connector and female union is easy to implement hollow test bullet and hollow oil pressure mandril
Replacement.
Structure of the invention design is rationally reliable, not only simulates actual condition of the bullet under interior ballistic flight, Er Qieke
Directly accurately to obtain low speed friction power of the bullet under inner trajectory, there is very important work to the research and development of ammunition
With having the advantages that simple structure and convenient processing and at low cost.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1- workbench, 2- sleeve-shaped simulate bore, 3- line handspike motor, the hollow oil pressure mandril of 4-, 5- linear axis
Hold seat, 6- bracket I, 7- bracket II, 8- ring-type limited block, 9- ring-type felt pan, the hollow test bullet of 10-, 11- foil gauge, 12- perseverance
Press pump, 13- deformeter, 14- linear motor driver, 15- high-pressure hose, 16- pressure gauge, 17- high-pressure hose connector.
Specific embodiment
A kind of inner trajectory low speed friction power simulation test experiment platform, including workbench 1 are provided with sleeve above workbench 1
Shape simulates bore 2 and line handspike motor 3 and hollow oil pressure mandril 4 at left and right sides of it, sets on sleeve-shaped simulation bore 2
It is equipped with the linear bearing seat 5 fixed with workbench 1, the bracket I6 fixed with workbench 1 is provided on line handspike motor 3, it is empty
The bracket II7 fixed with workbench 1 is provided on heart oil pressure mandril 4, the push rod and sleeve-shaped of line handspike motor 3 simulate bore
2 are fixedly connected, and the left and right ends portion of sleeve-shaped simulation bore 2 is provided with cyclic annular limited block 8, the inside of two cyclic annular limited blocks 8
It is respectively and fixedly provided with cyclic annular felt pan 9, is provided with hollow test bullet 10 in sleeve-shaped simulation bore 2, the left end of hollow oil pressure mandril 4 is stretched
Enter sleeve-shaped simulation bore 2 and be connected to the right end of hollow test bullet 10, if being provided on the outer cylinder of hollow oil pressure mandril 4
Dry foil gauge 11.
A kind of inner trajectory low speed friction power simulation test experiment platform further includes constant pressure pump 12, deformeter 13 and linear motor
Driver 14；The output end of foil gauge 11 is connect with the input terminal of deformeter 13；The input terminal and straight-line electric of line handspike motor 3
The output end of machine driver 14 connects, and the height being connected to the two is provided between the right end and constant pressure pump 12 of hollow oil pressure mandril 4
Hose 15 is pressed, is provided with pressure gauge 16 on high-pressure hose 15；It is hollow test bullet 10 right side wall be provided with communicate therewith it is interior
Screwed pipe joint, and hollow 4 left part of oil pressure mandril is threadedly coupled with female union；Hollow 4 right end of oil pressure mandril and height
Pressure 15 left end of hose is connected by high-pressure hose connector 17.
In specific implementation process, sleeve-shaped simulation bore 2 is shifted onto institute attainable left end first；Secondly by hollow examination
Bullet 10 is tested to be installed on hollow oil pressure mandril 4 by female union；Again by hollow test bullet 10 and hollow oil pressure
Mandril 4 is inserted into the inside of sleeve-shaped simulation bore 2 together, and realizes that hollow oil pressure mandril 4 is fixed on workbench by bracket II7
On 1；High-pressure hose 15 and hollow oil pressure mandril 4 are realized into connection by high-pressure hose connector 17 from secondary, and guarantee constant pressure pump 12
The oil pressure of generation is not revealed；It is to hollow 10 loading simulation gun pressure of test bullet and real by pressure gauge 9 finally to open constant pressure pump 12
When observe loaded value, open 13 setup test data of deformeter, open linear motor driver 14 and prepare to push sleeve-shaped simulation
Bore 2.
Claims (3)
1. a kind of inner trajectory low speed friction power simulation test experiment platform, it is characterised in that: including workbench (1), on workbench (1)
Side is provided with sleeve-shaped simulation bore (2) and line handspike motor (3) and hollow oil pressure mandril (4) at left and right sides of it,
The linear bearing seat (5) fixed with workbench (1) is provided in sleeve-shaped simulation bore (2), line handspike motor is arranged on (3)
There is the bracket I (6) fixed with workbench (1), the bracket II fixed with workbench (1) is provided on hollow oil pressure mandril (4)
(7), the push rod of line handspike motor (3) is fixedly connected with sleeve-shaped simulation bore (2), and sleeve-shaped simulates the left and right of bore (2)
Both ends are provided with cyclic annular limited block (8), are respectively and fixedly provided with cyclic annular felt pan (9), sleeve-shaped mould on the inside of two cyclic annular limited blocks (8)
Hollow test bullet (10) is provided in quasi- bore (2), sleeve-shaped simulation bore (2) is protruded into the left end of hollow oil pressure mandril (4)
And be connected to the right end of hollow test bullet (10), several foil gauges (11) are provided on the outer cylinder of hollow oil pressure mandril (4).
2. a kind of inner trajectory low speed friction power simulation test experiment platform according to claim 1, it is characterised in that: further include
Constant pressure pump (12), deformeter (13) and linear motor driver (14)；The output end of foil gauge (11) is defeated with deformeter (13)
Enter end connection；The input terminal of line handspike motor (3) is connect with the output end of linear motor driver (14), hollow oil pressure mandril
(4) high-pressure hose (15) being connected to the two is provided between right end and constant pressure pump (12), high-pressure hose is provided on (15)
Pressure gauge (16).
3. a kind of inner trajectory low speed friction power simulation test experiment platform according to claim 1 or 2, it is characterised in that: empty
The right side wall of heart test bullet (10) is provided with the female union communicated therewith, and hollow oil pressure mandril (4) left part with
Female union is threadedly coupled；Hollow oil pressure mandril (4) right end and high-pressure hose (15) left end pass through high-pressure hose connector
(17) it connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630544.4A CN108981501B (en) | 2018-06-19 | 2018-06-19 | Inner trajectory low-speed friction force simulation test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630544.4A CN108981501B (en) | 2018-06-19 | 2018-06-19 | Inner trajectory low-speed friction force simulation test bench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108981501A true CN108981501A (en) | 2018-12-11 |
| CN108981501B CN108981501B (en) | 2019-12-17 |
Family
ID=64540663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810630544.4A Expired - Fee Related CN108981501B (en) | 2018-06-19 | 2018-06-19 | Inner trajectory low-speed friction force simulation test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108981501B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031502A (en) * | 1989-09-06 | 1991-07-16 | Cooper Peter D | Adjustable powder measure |
| CN101694365A (en) * | 2009-08-27 | 2010-04-14 | 北京理工大学 | Explosion device with piston device |
| CN102706224A (en) * | 2012-05-23 | 2012-10-03 | 西安近代化学研究所 | Friction load loading device |
| CN103207122A (en) * | 2013-04-15 | 2013-07-17 | 北京理工大学 | Minitype dynamic pulling-pressing experiment system with preload |
| CN103322869A (en) * | 2013-05-20 | 2013-09-25 | 西安近代化学研究所 | Missile body charge friction environment simulating device |
-
2018
- 2018-06-19 CN CN201810630544.4A patent/CN108981501B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031502A (en) * | 1989-09-06 | 1991-07-16 | Cooper Peter D | Adjustable powder measure |
| CN101694365A (en) * | 2009-08-27 | 2010-04-14 | 北京理工大学 | Explosion device with piston device |
| CN102706224A (en) * | 2012-05-23 | 2012-10-03 | 西安近代化学研究所 | Friction load loading device |
| CN103207122A (en) * | 2013-04-15 | 2013-07-17 | 北京理工大学 | Minitype dynamic pulling-pressing experiment system with preload |
| CN103322869A (en) * | 2013-05-20 | 2013-09-25 | 西安近代化学研究所 | Missile body charge friction environment simulating device |
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| Publication number | Publication date |
|---|---|
| CN108981501B (en) | 2019-12-17 |
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Granted publication date: 20191217 Termination date: 20210619 |