CN110319996A - Novel free fall pilot system - Google Patents
Novel free fall pilot system Download PDFInfo
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- CN110319996A CN110319996A CN201910769783.2A CN201910769783A CN110319996A CN 110319996 A CN110319996 A CN 110319996A CN 201910769783 A CN201910769783 A CN 201910769783A CN 110319996 A CN110319996 A CN 110319996A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of novel free fall pilot systems, including top plate, rectangle frame and fixing seat, rectangle frame is fixedly connected at the top of the top plate, the bottom of the top plate is fixedly connected with cylinder, the bottom of the top plate and be located at cylinder in the middle part of be fixedly connected with column, and the top movable of leg surface is connected with clump weight compatible with cylinder, the present invention relates to pit gear technical fields.The novel free fall pilot system, pass through the two sides at the top of clump weight and the two sides for being located at column are connected with shell, it is easy to implement the automatic whereabouts of clump weight, it is easy to operate, reaction force is small, convenient for the progress of free-fall testing, rotating bar is rotatably connected between two sides by rectangle frame inner wall, convenient for adjusting the height of drop of clump weight according to the requirement of test, and in freely falling body, clump weight is less prone to the phenomenon that offset, so that derrick not will receive its impact, reduces security risk.
Description
Technical field
The present invention relates to pit gear technical field, specially a kind of novel free fall pilot system.
Background technique
Mine is the general name of the roadway to form underground coal mine production system, chamber, equipment, above ground structure and structures,
Sometimes mine underground open up in the also referred to as mine such as inclined shaft, vertical shaft and footrill, field with "nine squares" range size, the mine of each mine
The determination of well potential and the length of service is one of the critical issue that must be resolved during mine designs self, shaft production
Ability generally refers to the designed productive capacity of mine, and the original production capacity of some production mines needs to change for various reasons
Become, thus the ability of each production system of mine is appraised and decided again, the integrated production capacity after appraising and deciding claims to appraise and decide production capacity, root
According to mine capacity difference, mine is divided into big, the small three types of neutralization by China, i.e. well type, mine roadway specifically includes that
Upright tunnel, entry, inclined shaft and chamber, mine production system: being by the facility of completion specific function, equipment, structure
The general name for building object, route and roadway, by the transporting coal of mine, ventilation, haul, discharge refuse, draining, power supply, communication and monitoring
Equal subsystems composition.
With the continuous expansion of mine shaft hoist system, hoisting power is also continuously increased, and corresponding buffer-braking requires also to increase
Greatly, the detection inspection of big energy, high speed and big brake force buffer-braking equipment is put forward higher requirements, at present by certainly
During being tested by drop test system, it is not easy to realize that object falls automatically, reaction force is larger, and it is cumbersome,
In freely falling body, object is easy to appear unbalance loading phenomenon, and violent vibration is generated to derrick, there is very big security risk.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of novel free fall pilot system, solves and is not easy to
Realize that object falls automatically, reaction force is larger, and cumbersome, in freely falling body, object is easy to appear unbalance loading phenomenon, to well
Frame generates violent vibration, there are problems that very big security risk.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of novel free fall test system
It unites, including top plate, rectangle frame and fixing seat, is fixedly connected with rectangle frame at the top of the top plate, the bottom of the top plate is fixed
It is connected with cylinder, the bottom of the top plate and is located in the middle part of cylinder and is fixedly connected with column, and the top movable of leg surface
It is connected with clump weight compatible with cylinder, the two sides at the top of the clump weight and the two sides for being located at column are connected with outer
Shell, and the two sides of the two sides and bottom at the top of outer casing inner wall are fixedly connected to track, the opposite side of two sliding rails it
Between slidably connect movable plate, the top and bottom of the outer casing inner wall two sides is fixedly connected to connecting rod, the connecting rod
One end far from outer casing inner wall is through movable plate and extends to the outside of movable plate, the two sides of the outer casing inner wall and is located at two
It is fixedly connected to electric telescopic rod between the opposite side of connecting rod, and one end of electric telescopic rod output shaft and movable plate
Side is fixedly connected, and the movable plate is fixedly connected with fixture block far from the side of electric telescopic rod.
Preferably, the top of the outer casing inner wall and it is located between the opposite side of two tracks and is connected with fixation
Bar, and the two sides of fixed link offer card slot compatible with fixture block, the connecting rod extends to one end outside movable plate
It is fixedly connected with block, the surface of the connecting rod and being located between the side of movable plate and the side of outer casing inner wall is arranged with the
One spring, the fixed link run through shell far from one end at the top of outer casing inner wall and extend to the outside of shell.
Preferably, the fixed link is extended at the top of one end and clump weight of shell exterior and is fixedly connected, the rectangle
It is rotatably connected to rotating bar between the two sides of frame inner wall, the top of the top plate and dead astern for being located at rotating bar is fixedly connected with
Mounting plate, and motor is fixedly connected at the top of mounting plate, one end of the motor output shaft is fixedly connected with by shaft coupling
First bevel gear, the surface of the rotating bar are fixedly connected with the second bevel gear being meshed with first bevel gear.
Preferably, the two sides on the rotating bar surface are fixedly connected to roller, and the surface wrap of roller has wirerope,
The wirerope runs through top plate far from one end of roller and extends to the bottom of top plate, and the wirerope extends to top plate bottom
It is fixedly connected at the top of one end and shell, the bottom of the leg surface is fixedly connected with ring block, and the two sides of ring block are equal
It is fixedly connected with support plate.
Preferably, the support plate is fixedly connected with sliding block, the bottom of the cylinder inboard wall two sides far from the side of ring block
Portion offers sliding rail, and the side of sliding rail and sliding block are slidably connected far from the side of support plate, and two support plates are close
The second spring that the bottom of column side is fixedly connected to.
Preferably, fixed plate is fixedly connected between the two sides of the cylinder inboard wall bottom, the second spring is far from branch
It is fixedly connected at the top of one end of fagging and fixed plate, the one end of the column far from top plate is through fixed plate and extends to fixation
The outside of plate, the two sides of the cylinder are fixedly connected to gag lever post, and the bottom of the top plate is fixedly connected with the first steelframe.
Preferably, it is fixedly connected with the second steelframe between the opposite side of the first steelframe inner wall, the gag lever post is remote
One end from cylinder is fixedly connected with the side of the second steelframe, is offered in the middle part of the fixing seat compatible with the first steelframe
Through slot, the bottom of the fixing seat are fixedly connected with ground ontology.
Preferably, the bottom of first steelframe runs through ground ontology and extends to the inside of ground ontology, and described first
The side that steelframe extends to ground body interior is fixedly connected with the inside of ground ontology, and the column extends to outside fixed plate
One end be fixedly connected with the inside of ground ontology.
(3) beneficial effect
The present invention provides a kind of novel free fall pilot systems.Have compared with prior art it is following the utility model has the advantages that
(1), the novel free fall pilot system, passes through the two sides at the top of clump weight and the two sides for being located at column are movable
Be connected with shell, and the two sides of the two sides and bottom at the top of outer casing inner wall are fixedly connected to track, two sliding rails it is opposite one
Movable plate is slidably connected between side, the top and bottom of outer casing inner wall two sides is fixedly connected to connecting rod, and connecting rod is separate
One end of outer casing inner wall is through movable plate and extends to the outside of movable plate, the two sides of outer casing inner wall and is located at two connecting rod phases
Pair side between be fixedly connected to electric telescopic rod, and one end of electric telescopic rod output shaft and the side of movable plate are fixed
Connection, movable plate are fixedly connected with fixture block far from the side of electric telescopic rod, the top of outer casing inner wall and are located at two track phases
Pair side between be connected with fixed link, and the two sides of fixed link offer card slot compatible with fixture block, convenient for real
The automatic whereabouts of existing clump weight, easy to operate, reaction force is small, convenient for the progress of free-fall testing.
(2), the novel free fall pilot system is rotatably connected to rotating bar between the two sides by rectangle frame inner wall,
The top of the top plate and dead astern for being located at rotating bar is fixedly connected with mounting plate, and is fixedly connected with motor at the top of mounting plate,
One end of motor output shaft is fixedly connected with first bevel gear by shaft coupling, and the surface of rotating bar is fixedly connected with and the first cone
The second bevel gear that gear is meshed, the two sides on rotating bar surface are fixedly connected to roller, and the surface wrap of roller has steel
Cord, wirerope run through top plate far from one end of roller and extend to the bottom of top plate, and wirerope extends to the one of top plate bottom
End be fixedly connected at the top of shell, the bottom of top plate and be fixedly connected with column, the top of leg surface in the middle part of the cylinder
Portion is connected with clump weight compatible with cylinder, convenient for according to the requirement of test adjust clump weight height of drop, and
When freely falling body, the phenomenon that clump weight is less prone to offset, so that derrick not will receive its impact, security risk is reduced.
(3), the novel free fall pilot system is fixedly connected with ring block, and annular by the bottom of leg surface
The two sides of block are fixedly connected to support plate, and support plate is fixedly connected with sliding block, cylinder inboard wall two sides far from the side of ring block
Bottom offer sliding rail, and the side of sliding rail and sliding block are slidably connected far from the side of support plate, and two support plates are close
The second spring that the bottom of column side is fixedly connected to is fixedly connected with fixed plate between the two sides of cylinder inboard wall bottom,
It is fixedly connected at the top of the one end of second spring far from support plate and fixed plate, the stability of buffer gear is improved, using more
Add safety, improves the accuracy of pilot system.
Detailed description of the invention
Fig. 1 is the perspective view of body upper part structure in ground of the present invention；
Fig. 2 is the cross-sectional view of structure of the invention；
Fig. 3 is the partial enlarged view in Fig. 2 of the present invention at A；
Fig. 4 is the cross-sectional view of tube structure of the present invention；
Fig. 5 is the cross-sectional view of shell mechanism of the present invention.
In figure, 1 top plate, 2 rectangle frames, 3 fixing seats, 4 cylinders, 5 columns, 6 clump weights, 7 shells, 8 tracks, 9 movable plates, 10
Connecting rod, 11 electric telescopic rods, 12 fixture blocks, 13 fixed links, 14 card slots, 15 blocks, 16 first springs, 17 rotating bars, 18 installations
Plate, 19 motors, 20 first bevel gears, 21 second bevel gears, 22 rollers, 23 wirerope, 24 ring blocks, 25 support plates, 26 sliding blocks,
27 sliding rails, 28 second springs, 29 fixed plates, 30 gag lever posts, 31 first steelframes, 32 second steelframes, 33 through slots, 34 ground ontologies.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the embodiment of the present invention provides a kind of technical solution: a kind of novel free fall pilot system, packet
Top plate 1, rectangle frame 2 and fixing seat 3 are included, the top of top plate 1 is fixedly connected with rectangle frame 2, and the bottom of top plate 1 is fixedly connected with cylinder
Body 4,4 inner wall of cylinder are adapted with clump weight 6, while the middle part of clump weight 6 offers through-hole compatible with column 5, so that
Clump weight 6 is not likely to produce offset in dropping process, so that derrick not will receive its impact, reduces security risk, cylinder 4
Fixed plate 29, the one end of second spring 28 far from support plate 25 and fixed plate 29 are fixedly connected between the two sides of inner wall bottom
Top is fixedly connected, and column 5 runs through fixed plate 29 far from one end of top plate 1 and extends to the outside of fixed plate 29, and the two of cylinder 4
Side is fixedly connected to gag lever post 30, and the bottom of top plate 1 is fixedly connected with the first steelframe 31, and the bottom of the first steelframe 31 is penetratingly
Face ontology 34 and the inside for extending to ground ontology 34, the first steelframe 31 extend to the side inside ground ontology 34 and ground sheet
The inside of body 34 is fixedly connected, and one end that column 5 extends to outside fixed plate 29 is fixedly connected with the inside of ground ontology 34, the
The second steelframe 32, the one end of gag lever post 30 far from cylinder 4 and second are fixedly connected between the opposite side of one steelframe, 31 inner wall
The side of steelframe 32 is fixedly connected, and the middle part of fixing seat 3 offers through slot 33 compatible with the first steelframe 31, fixing seat 3
Bottom is fixedly connected with ground ontology 34, the bottom of the top plate 1 and middle part for being located at cylinder 4 is fixedly connected with column 5, and column 5
The top movable on surface is connected with clump weight 6 compatible with cylinder 4, the two sides at 6 top of clump weight and the two sides for being located at column 5
It is connected with shell 7, the top of 7 inner wall of shell and is located between the opposite side of two tracks 8 and is connected with fixation
Bar 13, one end that fixed link 13 extends to outside shell 7 are fixedly connected with the top of clump weight 6, the two sides of 2 inner wall of rectangle frame it
Between be rotatably connected to rotating bar 17, the two sides on 17 surface of rotating bar are fixedly connected to roller 22, and the surface wrap of roller 22
There is wirerope 23, by motor 19, the setting of rotating bar 17, roller 22 and wirerope 23, convenient for adjusting according to the requirement of test
The height of drop of clump weight 6, wirerope 23 run through top plate 1 far from one end of roller 22 and extend to the bottom of top plate 1, wirerope
23 one end for extending to 1 bottom of top plate are fixedly connected with the top of shell 7, and the bottom on 5 surface of column is fixedly connected with ring block
24, and the two sides of ring block 24 are fixedly connected to support plate 25, support plate 25 is fixedly connected with far from the side of ring block 24
Sliding block 26, the bottom of 4 inner wall two sides of cylinder offers sliding rail 27, and the side of sliding rail 27 and sliding block 26 are far from support plate 25
Side is slidably connected, and by support plate 25, the setting of sliding rail 27 and sliding block 26, the stability of buffer gear is improved, using more
Add safety, improve the accuracy of pilot system, two support plates 25 be fixedly connected to close to the bottom of 5 side of column
Two springs 28 can be replaced after 28 long-time use of second spring, guarantee elasticity, the top of top plate 1 and be located at rotating bar
17 dead astern is fixedly connected with mounting plate 18, and the top of mounting plate 18 is fixedly connected with motor 19, and motor 19 is positive and negative rotation
Motor is controlled by external control mechanisms, and one end of 19 output shaft of motor is fixedly connected with the first cone tooth by shaft coupling
Wheel 20, the surface of rotating bar 17 are fixedly connected with the second bevel gear 21 being meshed with first bevel gear 20, and fixed link 13
Two sides offer card slot 14 compatible with fixture block 12, and one end that connecting rod 10 extends to outside movable plate 9 is fixedly connected with
Block 15, the surface of connecting rod 10 and be located at movable plate 97 inner wall of side and shell side between be arranged with the first spring
16, fixed link 13 runs through shell 7 far from one end at the top of 7 inner wall of shell and extends to the outside of shell 7, and 7 inner wall top of shell
The two sides in portion and the two sides of bottom are fixedly connected to track 8, and two sliding rails 27 slidably connect activity between opposite side
Plate 9, the top and bottom of 7 inner wall two sides of shell are fixedly connected to connecting rod 10, the one end of connecting rod 10 far from 7 inner wall of shell
It through movable plate 9 and extends to the outside of movable plate 9, the two sides of 7 inner wall of shell and is located at the opposite side of two connecting rods 10
Between be fixedly connected to electric telescopic rod 11, electric telescopic rod 11 is controlled by external control mechanisms, and electric expansion
One end of 11 output shaft of bar is fixedly connected with the side of movable plate 9, and movable plate 9 is fixedly connected far from the side of electric telescopic rod 11
There is fixture block 12, when clump weight 6 falls, gradually buffer deceleration passes through clump weight 6 up to stopping completely under the action of buffer gear
The relevant parameter of actual tests can calculate braking deceleration when actual braking force and the braking of buffer brake device, should
Free-fall testing system is the brake check checking system of buffer brake device in vertical shaft hoisting transport, can also apply to it
The braking forces measuring of his buffer-braking product is examined.
In use, installing by the first hermatic door to clump weight 6, start electric telescopic rod 11, movable plate 9 is driven to exist
It is moved in connecting rod 10 to 7 side of shell, the first spring 16 being press-connected on bar 10, two fixture blocks 12 are thus to opposite
Direction is mobile, and the fixed link 13 at 6 top of clump weight is inserted into shell 7, is driven again by electric telescopic rod 11 movable plate 9 and
Fixture block 12 is mobile to 13 direction of fixed link, so that fixture block 12 enters in the card slot 14 in fixed link 13, consolidates to fixed link 13
It is fixed, to complete the installation to clump weight 6, according to the height requirement of test, starts motor 19, rotating bar 17 is driven to be revolved
Turning, the roller 22 of 17 two sides of rotating bar is rotated, when motor 19 rotates forward, so that the length of wirerope 23, clump weight 6
Height of drop reduces, otherwise length shortens, and the height of drop of clump weight 6 increases, and after having adjusted test height of drop, starts electronic
Telescopic rod 11 drives fixture block 12 to remove in card slot 14, and fixed link 13 is not fixed with clump weight 6, automatic to fall, and 6 liang of clump weight
Side is adapted with cylinder 4, and when whereabouts is not easy to deviate, and the whereabouts of clump weight 6 knocks buffer gear, causes stress to support plate 25, sliding
The slide downward on sliding rail 27 of block 26, second spring 28 play the role of buffering to clump weight 6, match under the action of buffer gear
Pouring weight 6 gradually write down practical buffer distance up to stopping completely, can be calculated by the relevant parameter of actual tests by buffer deceleration
The actual braking force of buffer brake device and braking deceleration when braking out.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. novel free fall pilot system, including top plate (1), rectangle frame (2) and fixing seat (3), the top of the top plate (1)
It is fixedly connected with rectangle frame (2), it is characterised in that: the bottom of the top plate (1) is fixedly connected with cylinder (4), the top plate (1)
Bottom and being located in the middle part of cylinder (4) be fixedly connected with column (5), and the top movable on column (5) surface is connected with and cylinder
The compatible clump weight (6) of body (4), two sides at the top of the clump weight (6) and the two sides for being located at column (5) are connected with
Shell (7), and the two sides of the two sides and bottom at the top of shell (7) inner wall are fixedly connected to track (8), two sliding rails
(27) it is slidably connected between opposite side movable plate (9), the top and bottom of shell (7) the inner wall two sides is fixed to be connected
It is connected to connecting rod (10), the one end of the connecting rod (10) far from shell (7) inner wall is through movable plate (9) and extends to movable plate
(9) outside, two sides of shell (7) inner wall and being located between the opposite side of two connecting rods (10) are fixedly connected to
Electric telescopic rod (11), and one end of electric telescopic rod (11) output shaft is fixedly connected with the side of movable plate (9), the activity
Plate (9) is fixedly connected with fixture block (12) far from the side of electric telescopic rod (11).
2. novel free fall pilot system according to claim 1, it is characterised in that: the top of shell (7) inner wall
Portion and being located between the opposite side of two tracks (8) is connected with fixed link (13), and the two sides of fixed link (13) are opened
Equipped with card slot (14) compatible with fixture block (12), the connecting rod (10) extends to the fixed company in the external one end of movable plate (9)
Be connected to block (15), the surface of the connecting rod (10) and be located at movable plate (9) side and shell (7) inner wall side between
It is arranged with the first spring (16), the fixed link (13) through shell (7) and extends to far from one end at the top of shell (7) inner wall
The outside of shell (7).
3. novel free fall pilot system according to claim 2, it is characterised in that: the fixed link (13) extends to
Shell (7) is fixedly connected at the top of external one end and clump weight (6), the company of rotation between the two sides of rectangle frame (2) inner wall
Be connected to rotating bar (17), the top of the top plate (1) and be located at rotating bar (17) dead astern be fixedly connected with mounting plate (18),
And motor (19) are fixedly connected at the top of mounting plate (18), one end of motor (19) output shaft connects by the way that shaft coupling is fixed
It is connected to first bevel gear (20), the surface of the rotating bar (17) is fixedly connected with second to be meshed with first bevel gear (20)
Bevel gear (21).
4. novel free fall pilot system according to claim 3, it is characterised in that: rotating bar (17) surface
Two sides are fixedly connected to roller (22), and the surface wrap of roller (22) has wirerope (23), and the wirerope (23) is separate
One end of roller (22) runs through top plate (1) and extends to the bottom of top plate (1), and the wirerope (23) extends to top plate (1) bottom
It being fixedly connected at the top of the one end in portion and shell (7), the bottom on column (5) surface is fixedly connected with ring block (24), and
The two sides of ring block (24) are fixedly connected to support plate (25).
5. novel free fall pilot system according to claim 4, it is characterised in that: the support plate (25) is far from ring
The side of shape block (24) is fixedly connected with sliding block (26), and the bottom of cylinder (4) the inner wall two sides offers sliding rail (27), and
The side of sliding rail (27) is slidably connected with sliding block (26) far from the side of support plate (25), and two support plates (25) are close to vertical
The second spring (28) that the bottom of column (5) side is fixedly connected to.
6. novel free fall pilot system according to claim 5, it is characterised in that: cylinder (4) the inner wall bottom
Two sides between be fixedly connected with fixed plate (29), the second spring (28) far from support plate (25) one end and fixed plate
(29) it is fixedly connected at the top of, the one end of the column (5) far from top plate (1) is through fixed plate (29) and extends to fixed plate
(29) two sides of outside, the cylinder (4) are fixedly connected to gag lever post (30), and the bottom of the top plate (1) is fixedly connected
There are the first steelframe (31).
7. a kind of novel free fall pilot system according to claim 6, it is characterised in that: first steelframe (31)
It is fixedly connected between the opposite side of inner wall the second steelframe (32), the one end of the gag lever post (30) far from cylinder (4) and the
The side of two steelframes (32) is fixedly connected, and compatible through slot is offered with the first steelframe (31) in the middle part of the fixing seat (3)
(33), the bottom of the fixing seat (3) is fixedly connected with ground ontology (34).
8. novel free fall pilot system according to claim 7, it is characterised in that: the bottom of first steelframe (31)
Portion runs through ground ontology (34) and extends to the inside of ground ontology (34), and first steelframe (31) extends to ground ontology
(34) internal side is fixedly connected with the inside of ground ontology (34), and the column (5) extends to fixed plate (29) outside
One end is fixedly connected with the inside of ground ontology (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769783.2A CN110319996A (en) | 2019-08-20 | 2019-08-20 | Novel free fall pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769783.2A CN110319996A (en) | 2019-08-20 | 2019-08-20 | Novel free fall pilot system |
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| Publication Number | Publication Date |
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| CN110319996A true CN110319996A (en) | 2019-10-11 |
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| CN201910769783.2A Pending CN110319996A (en) | 2019-08-20 | 2019-08-20 | Novel free fall pilot system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465863A (en) * | 2021-09-03 | 2021-10-01 | 新沂天晟新材料有限公司 | Battery case striking check out test set |
| CN113532405A (en) * | 2021-07-19 | 2021-10-22 | 王烁程 | Stable drop wire capable of avoiding long-time swinging for constructional engineering and operation method thereof |
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| CN113465863A (en) * | 2021-09-03 | 2021-10-01 | 新沂天晟新材料有限公司 | Battery case striking check out test set |
| CN113465863B (en) * | 2021-09-03 | 2021-11-12 | 新沂天晟新材料有限公司 | Battery case striking check out test set |
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