CN107957220B - Emission test system - Google Patents
Emission test system Download PDFInfo
- Publication number
- CN107957220B CN107957220B CN201711309011.8A CN201711309011A CN107957220B CN 107957220 B CN107957220 B CN 107957220B CN 201711309011 A CN201711309011 A CN 201711309011A CN 107957220 B CN107957220 B CN 107957220B
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- moving
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- 238000012360 testing method Methods 0.000 title claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims description 39
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 238000013028 emission testing Methods 0.000 claims 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000004146 energy storage Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000012356 Product development Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- 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
-
- 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
- F42B35/02—Gauging, sorting, trimming or shortening cartridges or missiles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses an emission test system which comprises a traction unit, an emission unit, a reversing unit, a primary braking unit and a secondary braking unit, wherein the traction unit and the emission unit are arranged side by side, the reversing unit is arranged between the traction unit and the emission unit, a traction rope led out by the traction unit can be connected to a motion pulley of the emission unit in a reversing way, the primary braking unit is arranged on the traction unit, a motion piston of the traction unit can be limited to continuously pull the traction rope to move backwards, and the secondary braking unit is arranged on the emission unit, so that the motion pulley can be prevented from continuously sliding forwards. The invention can improve the reliability and stability of the product test, and can accurately and adjustably complete the tests of different types of test products.
Description
Technical Field
The invention relates to an emission test system, in particular to a system for a moving part emission test or a collision test.
Background
Emission tests are test activities performed to identify the performance and quality of an emission object. In order to avoid major failures in the system level test, the critical sleeve products need to be subjected to bottoming and closing tests.
In the past, the mechanism/structure verification test related to the key important part sleeve is carried out by using a live shell, and the test cannot be carried out in advance in the product development process, so that the product development success rate is low, and the development period is prolonged. And the test products have different specifications, the test repeatability is poor, the effective test data are less, the test cost is high, and the safety is low.
Disclosure of Invention
The invention solves the technical problems that: the utility model provides a be suitable for multiple specification model test product emission test system, can realize functions such as test product emission separation test, dynamic impact test, and can manage and control all kinds of impact, collision test process, improve the reliability and the stability of product test, and can accurately, the test of adjustable completion different grade type test product.
The emission test system comprises a traction unit, an emission unit, a reversing unit, a primary braking unit and a secondary braking unit, wherein the traction unit and the emission unit are arranged side by side, the reversing unit is arranged between the traction unit and the emission unit, and can be used for reversing and connecting a traction rope led out by the traction unit to a motion pulley of the emission unit, the primary braking unit is arranged on the traction unit and can be used for limiting a motion piston of the traction unit to continuously pull the traction rope to move backwards, and the secondary braking unit is arranged on the emission unit and can be used for preventing the motion pulley from continuously sliding forwards.
Preferably, the primary braking unit comprises a primary braking piston, a primary braking mechanism and an exhaust cabin, the primary braking piston and the moving piston are arranged in the moving cylinder side by side, the moving piston is located at the front side, a plurality of exhaust holes are formed in the middle cylinder wall of the moving cylinder, the exhaust cabin covers the exhaust holes from the outer side of the cylinder, so that gas exhausted from the exhaust holes flows into the exhaust cabin, an interface communicated with a high-pressure gas source through a stop valve is arranged near the cylinder bottom wall at the rear side of the primary braking piston, the air in the cylinder at the rear side of the primary braking piston can be inflated, the primary braking mechanism is connected with the primary braking piston through the cylinder bottom wall from the rear side of the cylinder, and the primary braking mechanism can only move backwards in one direction after locking, and can reset the primary braking piston after unlocking.
Preferably, the launching unit comprises a moving pulley, a locking and releasing mechanism, a bearing support and a constraint guide rail, the bearing support is arranged in parallel with a moving cylinder of the traction unit, the moving pulley is connected with the traction rope, the moving pulley can slide forwards along a guide groove on the bearing support under the action of the traction mechanism, the locking and releasing mechanism can lock or release the moving pulley at a preparation launching position, the constraint guide rail is fixed on the bearing support and is positioned above the moving pulley, a test piece is mounted on the constraint guide rail through an adapter and can slide forwards and backwards along the constraint guide rail, a speed measuring device is mounted in the middle section of the constraint guide rail, and the moving pulley is provided with an upward pushing arm and a downward blocking arm, and the upward pushing arm can be abutted against the test piece from the rear side so as to push the test piece to slide forwards.
Preferably, the secondary braking unit comprises a secondary braking cylinder, a secondary braking piston and a secondary braking mechanism, wherein the secondary braking cylinder is fixed on the front side of the bearing support and is positioned below the constraint guide rail, the secondary braking piston is connected with the secondary braking mechanism, and when the moving pulley pushes the test piece to move to the testing device, the lower blocking arm of the moving pulley is in collision and abutting connection with the stop block of the secondary braking mechanism, so that the moving speed of the moving pulley is continuously reduced by compressing gas in the cylinder.
Preferably, the secondary braking mechanism can only move forward in one direction after locking, and the secondary braking piston can be reset after unlocking. .
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, compressed air is used as a power source to replace the existing live ammunition firing, so that the cost of the test is reduced, the test preparation time is short, and the safety and environmental protection are realized;
(2) The test piece adapting piece adopted by the invention can flexibly select the test piece under the condition of not changing the constraint guide rail, thereby reducing the difficulty and complexity of test operation and improving the test efficiency;
(3) The pressure of the compressed air adopted by the invention can be freely adjusted according to the speed requirement of the test piece, and compared with the existing live ammunition firing test, the precision of the test is improved, and the uncertainty of the test is also reduced;
(4) The pneumatic braking mode adopted by the invention can accurately adjust the braking position according to different test working conditions;
(5) The two-stage pneumatic braking combination mode adopted by the invention not only improves the braking reliability, but also can realize high-speed braking;
(6) The pneumatic braking and braking mechanism combined limiting mode adopted by the invention improves the braking reliability and safety;
(7) The balance air cavity adopted by the invention reduces the air leakage of the test gas of the emission test system, and improves the test precision;
(8) The traction rope adopted by the invention adopts a high-strength high-modulus fiber rope, and has lighter weight and higher performance than a metal rope under the condition of the same specification, so that the test speed of the emission test system is improved, and the performance is improved.
Drawings
FIG. 1 is a general layout of a system of the present invention;
FIG. 2 is a cross-sectional view of the motion cylinder axis apparatus of the present invention;
FIG. 3 is a cross-sectional view of the constrained rail axis apparatus of the present invention;
fig. 4 is an end cross-sectional view of the running block of the present invention.
Detailed Description
The following describes preferred embodiments of the present invention with reference to the drawings. The invention takes the movement direction of the emission test piece as the front.
As shown in fig. 1,2,3 and 4, the emission test system of the invention comprises an energy storage tank 1, a pressure sensor 2, a temperature sensor 3, a regulating valve 4, a quick stop valve 5, a moving cylinder 6, an exhaust cabin 7, a primary brake cylinder 8, a primary brake mechanism 9, a balance air chamber 10, a reversing wheel 11, a moving pulley 12, a locking and releasing mechanism 13, a traction rope 14, a bearing bracket 15, a constraint guide rail 16, a secondary brake mechanism 17, a secondary brake cylinder 18, a homing mechanism 19, a primary brake piston brake unit 20, a primary brake piston 21, a moving piston 22, a traction rope protection cover 23, a secondary brake piston brake unit 24, a secondary brake piston 25, a test piece adapter 26, a test piece 27, a speed measuring device 28 and the like.
The energy storage tank 1 is provided with a regulating valve 4, a pressure sensor 2 and a temperature sensor 3, the rear end of the energy storage tank 1 is connected with a quick stop valve 5, the quick stop valve 5 is connected with a moving cylinder 6 through a tee joint, the front end of the moving cylinder 6 is connected with a balance air cavity 10, the rear end of the moving cylinder 6 is connected with a first-stage brake air cylinder 8, the rear section of the moving cylinder 6 is provided with an exhaust hole, two reversing wheels 11 are arranged next to each other and are respectively positioned at one side of the balance air cavity 10 far away from the moving cylinder 6 and the front end of a force-bearing bracket 15, the force-bearing bracket 15 is arranged in parallel with the moving cylinder 6, and a constraint guide rail 16 is fixed on the force-bearing bracket 15. The moving piston 22 is arranged in the moving cylinder 6, the front end of the moving piston 22 is connected with the traction rope 14, the primary braking piston 21 is arranged in the primary braking cylinder 8, and the primary braking piston 21 is connected with the primary braking mechanism 9 through the primary braking piston braking unit 20. The traction rope 14 connected with the moving piston 22 passes through the balance air cavity 10 and the two reversing wheels 11 and then is connected with the moving pulley 12, the moving pulley 12 is positioned in the middle of the bearing bracket 15, the moving pulley 12 can move along the middle guide groove of the bearing bracket 15, and the moving pulley 12 is in contact with but not connected with the test piece 27. The test piece 27 is connected to the test piece adapter 26, and the test piece adapter 26 is connected to the restraint rail 16 and is movable along the restraint rail 16 together with the test piece 27. The secondary braking piston 25 is installed in the secondary braking cylinder 18, the secondary braking cylinder 18 is fixed on one side of the bearing bracket 15 close to the reversing wheel 11, and the secondary braking piston braking unit 24 extends out of one side of the secondary braking cylinder 18 far away from the reversing wheel 11. The secondary braking mechanism 17 is arranged above the bearing bracket 15 and is arranged in parallel with the secondary braking cylinder 18, the locking and releasing mechanism 13 is arranged at the rear end of the bearing bracket 15, and the locking and releasing mechanism 13 can lock or release the running pulley 12. The speed measuring device 28 is positioned at two sides of the bearing bracket 15 and respectively measures the speeds of the test pieces 27 at different positions.
Compressed air is respectively filled into the energy storage tank 1, the primary braking cylinder 8, the secondary braking cylinder 18 and the balance air cavity 10 through pipelines, the valves on the respective air supply pipelines control air supply after the pressure required by test working conditions is reached, the pressure sensor 2 and the temperature sensor 3 are used for signal coupling and feedback to the regulating valve 4 to accurately regulate the pressure of the energy storage tank 1, the primary braking mechanism 9 and the secondary braking mechanism 17 are started, the quick stop valve 5 is opened, the compressed air instantaneously expands and pushes the moving piston 22 and the traction rope 14 to move, the moving pulley 12 and the test piece 27 connected with the tail end of the traction rope 14 also move along the constraint guide rail 16, and when the moving piston 22 moves to the exhaust hole of the rear section of the moving cylinder 6, the compressed air enters the exhaust chamber 7 through the exhaust hole and is discharged, the moving piston 22 continues to move along the moving cylinder 6, contacts with the primary brake piston 21 and compresses the gas in the primary brake cylinder 8 to decelerate, the primary brake piston brake unit 20 contacts with the primary brake mechanism 9 and is limited, meanwhile, the moving pulley 12 collides with the secondary brake piston brake unit 24, the secondary brake piston brake unit 24 pushes the secondary brake piston 25 to squeeze the air in the secondary brake cylinder 18, so that the moving pulley 12 gradually decelerates until stopping and contacting with the secondary brake mechanism 17 and being limited, and meanwhile, the test piece 27 is separated from the moving pulley 12, and the separation acceleration and speed are respectively measured by an acceleration sensor and a speed measuring device 28 positioned at the front end of the moving piston 22 to give results. The test piece 27 is separated and subjected to impact and collision tests after a required speed is obtained. After the test is finished, the air in the primary braking air cylinder 8 and the secondary braking air cylinder 18 is discharged, the primary braking mechanism 9 and the secondary braking mechanism 17 are unlocked, the primary braking piston 21 and the secondary braking piston 25 are pulled to the initial positions, the homing mechanism 19 is started, and the homing mechanism 19 pulls the moving piston 22 and the moving pulley 12 back to the initial positions through motor driving screws.
Claims (3)
1. An emission test system, characterized by: the device comprises a traction unit, a transmitting unit, a reversing unit, a primary braking unit and a secondary braking unit, wherein the traction unit and the transmitting unit are arranged side by side, the reversing unit is arranged between the traction unit and the transmitting unit, a traction rope led out by the traction unit is connected to a motion pulley of the transmitting unit in a reversing way, the primary braking unit is arranged on the traction unit, a motion piston of the traction unit is limited to continuously pull the traction rope to move backwards, and the secondary braking unit is arranged on the transmitting unit and is prevented from continuously sliding forwards;
the primary braking unit comprises a primary braking piston, a primary braking mechanism and an exhaust cabin, wherein the primary braking piston and the moving piston are arranged in a moving cylinder side by side, the moving piston is positioned at the front side, a plurality of exhaust holes are formed in the middle cylinder wall of the moving cylinder, the exhaust cabin covers the exhaust holes from the outer side of the cylinder, so that gas exhausted from the exhaust holes flows into the exhaust cabin, an interface communicated with a high-pressure gas source through a stop valve is formed near the bottom wall of the cylinder at the rear side of the primary braking piston, the air in the cylinder at the rear side of the primary braking piston is inflated, the primary braking mechanism is connected with the primary braking piston from the rear side of the cylinder through the bottom wall of the cylinder, and the primary braking mechanism can only move backwards in one direction after being locked, and the primary braking mechanism is reset by unlocking;
the launching unit comprises a moving pulley, a locking and releasing mechanism, a bearing support and a constraint guide rail, wherein the bearing support is arranged in parallel with a moving cylinder of the traction unit, the moving pulley is connected with the traction rope, the moving pulley slides forwards along a guide groove on the bearing support under the action of the traction mechanism, the locking and releasing mechanism locks or releases the moving pulley at a preparation launching position, the constraint guide rail is fixed on the bearing support and is positioned above the moving pulley, a test piece is arranged on the constraint guide rail through an adapter and slides forwards and backwards along the constraint guide rail, a speed measuring device is arranged in the middle section of the constraint guide rail, and the moving pulley is provided with an upper pushing arm and a lower blocking arm, and the upper pushing arm is abutted with the test piece from the rear side so as to push the test piece to slide forwards.
2. The emission testing system of claim 1, wherein: the secondary braking unit comprises a secondary braking cylinder, a secondary braking piston and a secondary braking mechanism, wherein the secondary braking cylinder is fixed on the front side of the bearing support and is positioned below the constraint guide rail, the secondary braking piston is connected with the secondary braking mechanism, and when the moving pulley pushes the test piece to move to the speed measuring device, the lower blocking arm of the moving pulley is in collision and butt joint with the stop block of the secondary braking mechanism, so that the moving speed of the moving pulley is continuously reduced by compressing gas in the cylinder.
3. The emission testing system of claim 2, wherein: the secondary braking mechanism can only move forward in one direction after being locked, and the secondary braking piston is reset after the locking is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309011.8A CN107957220B (en) | 2017-12-11 | 2017-12-11 | Emission test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309011.8A CN107957220B (en) | 2017-12-11 | 2017-12-11 | Emission test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107957220A CN107957220A (en) | 2018-04-24 |
| CN107957220B true CN107957220B (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309011.8A Active CN107957220B (en) | 2017-12-11 | 2017-12-11 | Emission test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107957220B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540456B (en) * | 2018-11-21 | 2020-07-14 | 北京航天益森风洞工程技术有限公司 | Aerodynamic separation test control system and method |
| CN109974542B (en) * | 2019-03-26 | 2021-06-11 | 北京航天发射技术研究所 | Carrier rocket takeoff force thermal environment detection system and method |
| CN113267309B (en) * | 2021-04-29 | 2022-07-08 | 中国工程物理研究院总体工程研究所 | Short-distance acceleration and short-distance braking heavy load impact test device |
| CN113942665B (en) * | 2021-10-19 | 2023-08-25 | 北京航天发射技术研究所 | Unlocking device for air conditioner connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1904444A1 (en) * | 1969-01-30 | 1970-08-13 | Fischer Stahlbau | Pneumatic drive device for sliding gates, doors or the like that can be moved over rails by means of a carriage. |
| CN101769818A (en) * | 2010-02-08 | 2010-07-07 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
| CN104865123A (en) * | 2015-06-18 | 2015-08-26 | 沈阳飞机工业（集团）有限公司 | Strength and rigidity testing fixture for aircraft draw bar and use method of strength and rigidity testing fixture |
| CN106404333A (en) * | 2016-12-05 | 2017-02-15 | 中国航天空气动力技术研究院 | Gas ejection traction device |
| CN207649469U (en) * | 2017-12-11 | 2018-07-24 | 中国航天空气动力技术研究院 | Emission test system |
-
2017
- 2017-12-11 CN CN201711309011.8A patent/CN107957220B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1904444A1 (en) * | 1969-01-30 | 1970-08-13 | Fischer Stahlbau | Pneumatic drive device for sliding gates, doors or the like that can be moved over rails by means of a carriage. |
| CN101769818A (en) * | 2010-02-08 | 2010-07-07 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
| CN104865123A (en) * | 2015-06-18 | 2015-08-26 | 沈阳飞机工业（集团）有限公司 | Strength and rigidity testing fixture for aircraft draw bar and use method of strength and rigidity testing fixture |
| CN106404333A (en) * | 2016-12-05 | 2017-02-15 | 中国航天空气动力技术研究院 | Gas ejection traction device |
| CN207649469U (en) * | 2017-12-11 | 2018-07-24 | 中国航天空气动力技术研究院 | Emission test system |
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| Publication number | Publication date |
|---|---|
| CN107957220A (en) | 2018-04-24 |
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