CN207846388U - Stepping speed governing type geotechnique's injection crossbow - Google Patents

Stepping speed governing type geotechnique's injection crossbow Download PDF

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Publication number
CN207846388U
CN207846388U CN201820134072.9U CN201820134072U CN207846388U CN 207846388 U CN207846388 U CN 207846388U CN 201820134072 U CN201820134072 U CN 201820134072U CN 207846388 U CN207846388 U CN 207846388U
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China
Prior art keywords
baffle
crossbow
overlying
chord
injection
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CN201820134072.9U
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Chinese (zh)
Inventor
张金利
张文剑
徐怀宇
牛景琳
李帅
赵明辉
杨庄奕
霍峰磊
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Dalian University of Technology
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Dalian University of Technology
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Abstract

The utility model is related to a kind of stepping speed governing type geotechnique injection crossbows.It includes turntable, guide rail, crossbow arm, bowstring, safety screen, arrow shaft, crossbow, chord-drawing plate, percussion target, mounting base, pedestal, overlying baffle, threaded rod, photoelectric door mounting plate and trigger.Overlying baffle, under cover baffle, guide rail and safety screen constitute basic framework, two guide rails be symmetrically arranged on overlying baffle and under cover baffle between, perpendicular to overlying baffle and under cover baffle;Safety screen is mounted on overlying baffle and covers baffle both sides under, and the end for covering baffle under by overlying baffle is fixed;Chord-drawing plate direction is fixed on two guide rails, and threaded rod screws in overlying baffle and chord-drawing plate successively, and control chord-drawing plate by turntable and shaft slides vertically on guide rail.The utility model realizes the transmitting to different geometries object, while mounting base also assures the stability of the object direction of the launch by the replacement of replacement object mounting base;It is designed using bow and crossbow formula, it is easy to operate, and used the design of turntable and threaded rod;It mostly uses and is bolted, overall structure is rigidly good, and structural vibration is small when transmitting.

Description

Stepping speed governing type geotechnique's injection crossbow
Technical field
The utility model belongs to technical field of civil engineering, is related to a kind of stepping speed governing type geotechnique injection crossbow, is used for injection Experiment.
Background technology
Dynamic driving experiment is not conventional centrifugal modeling, and at present in soil test, dynamic driving especially requires to have The dynamic driving of suitable initial velocity is often difficult to realize, is mostly to carry out dynamic driving using centrifuge.And centrifugal test is of high cost High, technology requires also higher.But at present in soil test, simple static(al) injection cannot be satisfied research and require, dynamic test Ever more important.Therefore, it is based on the above present situation, studies that a kind of emitted energy is adjustable, and object dimension adjustable, speed can be surveyed, Of low cost, novel emission device easy to operate has apparent practical value.
Utility model content
In order to achieve the above objectives, the utility model provides a kind of stepping speed governing type geotechnique injection crossbow.
The technical solution of the utility model:
A kind of stepping speed governing type geotechnique injection crossbow, including turntable 1, guide rail 2, crossbow arm 3, bowstring 4, safety screen 5, arrow shaft 6, Crossbow 7, percussion target 9, mounting base 10, pedestal 11, overlying baffle 12, threaded rod 13, photoelectric door mounting plate 14, is pulled chord-drawing plate 8 Machine 15 covers baffle 16 under;
The overlying baffle 12, under cover baffle 16, guide rail 2 and safety screen 5 and constitute stepping speed governing type geotechnique's injection crossbow Basic framework, two guide rails 2 be symmetrically arranged on overlying baffle 12 and under cover baffle 16 between, perpendicular to overlying baffle 12 and under cover Baffle 16;Safety screen 5 is mounted on overlying baffle 12 and covers 16 both sides of baffle under, covers baffle under by overlying baffle 12 16 end is fixed;8 direction of chord-drawing plate is fixed on two guide rails 2, and threaded rod 13 screws in overlying baffle 12 and chord-drawing plate 8 successively, It is slid vertically on guide rail 2 by turntable 1 and the cooperation control chord-drawing plate 8 of threaded rod 13;
The mounting base 10, which is bolted to be fixed on down, to be covered on baffle 16, percussion target 9 head on 6 head of arrow shaft to Upper push-in, there are the grooves on 6 head of corresponding arrow shaft for the tail portion of percussion target 9, will be fired by the spring bail in mounting base 10 Target 9 is fixed in scheduled position, to ensure the stability of transmitting;
The crossbow arm 3 is two sections embedded, and 3 upper semisection of crossbow arm includes equipped with machine and realizes arrow shaft 6 with trigger 15, the two cooperation Transmitting, 3 lower semisection of crossbow arm fix on the base 11;Upper semisection and lower semisection are bolted by two pairs four groups, pass through selection The position for connecting bolt includes position to adjust machine, and then realizes speed governing purpose;
4 both ends of bowstring are fixedly connected with 7 both sides of crossbow respectively, and crossbow 7 is then bolted on pedestal 11 Lower surface;Bowstring 4 is moved upwards along crossbow arm 3, and including limit by machine on crossbow arm 3 fixes;
The chord-drawing plate 8 is equipped with drawable string-hanging hook, hooks the bowstring 4 in relaxation state, being rotated further by turntable 1 can Realize moving upwards for bowstring 4;
5 top of safety screen is bolted with overlying baffle 12, and its underpart covers baffle 16 under and passes through spiral shell It tethers and connects;Safety screen 5 causes security risk for preventing bowstring fracture from collapsing;
The percussion target 9, size can be changed by requirement of experiment;The mounting base 10, according to percussion target 9 Geometry is designed replacement;
The arrow shaft 6, without pointed arrow, corresponding different transmitting gears have different length, i.e. gear Gao Zeji to include position Height is set, then arrow shaft 6 is grown.
The photoelectric door mounting plate 14 is bolted with 11 lower surface of pedestal, if being provided on photoelectric door mounting plate 14 It is dry that photoelectric door velocity-measuring system is formed for the installation arrangement of photoelectric door group to equidistant bolt mouth.
The beneficial effects of the utility model are:The utility model can as dynamic driving emitter, being capable of stepping Speed governing, through measuring and calculating, for 200g, 15cm long, the column object of 2cm diameters, initial velocity can be in 18-38m/s step-governor ds.This Utility model can also be realized the transmitting to different geometries object, pacified simultaneously by the replacement of replacement object mounting base Dress seat also assures the stability of the object direction of the launch.The utility model is designed using bow and crossbow formula, easy to operate, and is used The design of turntable and threaded rod, string pulling action are easily effortless.It mostly uses and is bolted in the utility model, overall structure is rigid Property is good, and structural vibration is small when transmitting.
Description of the drawings
Fig. 1 is the overall construction drawing of utility model device.
Fig. 2 is the structure top view of utility model device.
In figure:1 turntable;2 guide rails;3 crossbow arms;4 bowstrings;5 safety screens;6 arrow shafts;7 crossbows;8 chord-drawing plates;9 percussion targets; 10 mounting bases;11 pedestals;12 overlying baffles;13 threaded rods;14 photoelectric door mounting plates;15 triggers;Baffle is covered under 16.
Specific implementation mode
Specific embodiment of the present utility model is further illustrated below in conjunction with attached drawing and technical solution.
Gear needed for choosing first is bolted position by the way that change crossbow arm 3 is two-part above and below, can adjust on crossbow arm 3 The height in portion, since machine is included positioned at 3 first half of crossbow arm, thus adjustable complete machine includes position, that is, adjusts the stretching degree of bowstring 4.Turn Dynamic top turntable 1 drives threaded rod 13 to rotate, and since chord-drawing plate 8 and threaded rod 13 are connected through a screw thread, makes chord-drawing plate 8 along spiral shell Rasp bar 13 and guide rail 2 are slowly moved to bottom, release the string-hanging hook installed on chord-drawing plate 8, hook the bow in relaxation state String 4, then turntable 1 is rotated backward, it drives chord-drawing plate 8 slowly to be promoted, pulls open bowstring 4, until machine of the lifting to 3 top of crossbow arm includes position Top is set, bowstring 4 is hung over into machine and is included, is completed to the action of this string pulling, although bowstring 4 hangs over machine and includes at this time, chord-drawing plate 8 is still It is parked under bowstring, string-hanging hook is not also drawn back, and safeguard protection can be played the role of.
Target 9 will then be fired by 10 lower section of mounting base, heading on 6 head of arrow shaft is upwardly into, by the bullet in mounting base 10 Spring bail is parked in precalculated position by target 9 is fired, and 6 head of arrow shaft is withstood in percussion 9 retaining groove of target at this time, to ensure to send out Stability is penetrated, installation is complete to this percussion target 9.
Turntable 1 is slowly rotated again, chord-drawing plate 8 is made slowly to move down, after bowstring 4, draws back string-hanging hook, you can scratches trigger action 15 transmittings, emission rate can be calculated by the photoelectric door velocity-measuring system of 10 lower section of mounting base.Complete equipment, safety easy to operate, Higher transmitting kinetic energy can be obtained, most geotechnological dynamic is met.

Claims (5)

1. stepping speed governing type geotechnique's injection crossbow, which is characterized in that stepping speed governing type geotechnique's injection crossbow include turntable (1), Guide rail (2), crossbow arm (3), bowstring (4), safety screen (5), arrow shaft (6), crossbow (7), chord-drawing plate (8), percussion target (9), peace Dress seat (10), pedestal (11), overlying baffle (12), threaded rod (13), photoelectric door mounting plate (14), trigger (15) and under cover baffle (16);
The overlying baffle (12), under cover baffle (16), guide rail (2) and safety screen (5) and constitute crossbow formula geotechnique's injection transmitting The basic framework of device, two guide rails (2) be symmetrically arranged on overlying baffle (12) and under cover baffle (16) between, perpendicular to overlying keep off Plate (12) and under cover baffle (16);Safety screen (5) be mounted on overlying baffle (12) and under cover baffle (16) both sides, pass through Overlying baffle (12) and under cover the end of baffle (16) and fix;Chord-drawing plate (8) direction is fixed on two guide rails (2), threaded rod (13) overlying baffle (12) and chord-drawing plate (8) are screwed in successively, pass through turntable (1) and threaded rod (13) cooperation control chord-drawing plate (8) It is slid vertically on guide rail (2);
The mounting base (10), which is bolted to be fixed on down, to be covered on baffle (16), and percussion target (9) heads on arrow shaft (6) head Portion is upwardly into, and the tail portion of percussion target (9) passes through the spring in mounting base (10) there are the groove on corresponding arrow shaft (6) head Bail will fire target (9) and fix in scheduled position, to ensure the stability of transmitting;
The crossbow arm (3) is two sections embedded, and crossbow arm (3) upper semisection includes equipped with machine and realizes arrow with trigger (15), the two cooperation The transmitting of bar (6), crossbow arm (3) lower semisection are fixed on pedestal (11);Upper semisection and lower semisection are bolted by two pairs four groups, The position that bolt is connected by selection includes position to adjust machine, and then realizes speed governing purpose;
Described bowstring (4) both ends are fixedly connected with crossbow (7) both sides respectively, and crossbow (7) is then bolted on pedestal (11) lower surface;Bowstring (4) is moved upwards along crossbow arm (3), and including limit by machine on crossbow arm (3) fixes;
The chord-drawing plate (8) is equipped with drawable string-hanging hook, hooks the bowstring (4) in relaxation state, is rotated further by turntable (1) Moving upwards for bowstring (4) can be achieved;
The photoelectric door mounting plate (14) is bolted with pedestal (11) lower surface, and photoelectric door mounting plate is provided on (14) It is several that photoelectric door velocity-measuring system is formed for the installation arrangement of photoelectric door group to equidistant bolt mouth.
2. stepping speed governing type geotechnique injection crossbow according to claim 1, which is characterized in that on the safety screen (5) Portion is bolted with overlying baffle (12), and its underpart is covered baffle (16) under and is bolted;Safety screen (5) is used for It prevents bowstring fracture from collapsing, causes security risk.
3. stepping speed governing type geotechnique injection crossbow according to claim 1 or 2, which is characterized in that the percussion target (9), size can be changed by requirement of experiment;The mounting base (10) is designed according to the geometry of percussion target (9) It replaces.
4. stepping speed governing type geotechnique injection crossbow according to claim 1 or 2, which is characterized in that the arrow shaft (6) does not have There are pointed arrow, corresponding different transmitting gears to there is different length, i.e. gear Gao Zeji to include position height, then arrow shaft (6) is long.
5. stepping speed governing type geotechnique injection crossbow according to claim 3, which is characterized in that the arrow shaft (6), without point Shape arrow, corresponding different transmitting gears have different length, i.e. gear Gao Zeji to include position height, then arrow shaft (6) is long.
CN201820134072.9U 2018-01-26 2018-01-26 Stepping speed governing type geotechnique's injection crossbow Active CN207846388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820134072.9U CN207846388U (en) 2018-01-26 2018-01-26 Stepping speed governing type geotechnique's injection crossbow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820134072.9U CN207846388U (en) 2018-01-26 2018-01-26 Stepping speed governing type geotechnique's injection crossbow

Publications (1)

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CN207846388U true CN207846388U (en) 2018-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385647A (en) * 2018-01-26 2018-08-10 大连理工大学 Divide gear speed governing type geotechnique's injection crossbow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385647A (en) * 2018-01-26 2018-08-10 大连理工大学 Divide gear speed governing type geotechnique's injection crossbow

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