CN112066814A - Novel high-efficient linear energy-gathering cutting device - Google Patents
Novel high-efficient linear energy-gathering cutting device Download PDFInfo
- Publication number
- CN112066814A CN112066814A CN202010906758.7A CN202010906758A CN112066814A CN 112066814 A CN112066814 A CN 112066814A CN 202010906758 A CN202010906758 A CN 202010906758A CN 112066814 A CN112066814 A CN 112066814A
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- China
- Prior art keywords
- liner
- charge
- plate
- side plate
- shaped
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/007—Explosive cutting or perforating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
Abstract
The invention provides a novel efficient linear energy-gathering cutting device, which comprises: the explosive charging device comprises an explosive charging shell, an explosive type cover, an auxiliary structure and explosive charging, wherein the explosive charging shell is of a plate-shaped structure with a door-shaped section; the liner comprises a liner I and a liner II, the liner I and the liner II are of plate-shaped structures, the lower ends of the liner I and the liner II are respectively connected with the front end of the inner wall of the explosive shell, and liner connecting plates are arranged at the upper ends of the liner I and the liner II; the auxiliary structure is a square plate-shaped structure and is arranged on the liner and liner connecting plate; the explosive is arranged in a cavity formed by the explosive shell, the shaped charge cover and the auxiliary structure, and the angle between the shaped charge cover and the explosive shell is changed, and the auxiliary structure is additionally arranged on the shaped charge cover, so that sufficient explosive penetration capacity can be obtained.
Description
Technical Field
The invention relates to the technical field of blasting, in particular to a novel efficient linear energy-gathering cutting device.
Background
Traditional shaped charges can be divided into the following three forms according to the form of metal jet formed after detonation of the charge: the first type is shaped jets; the second type is the explosive shaped projectile (EFP); the third type is a rod jet. The head speed of the first type of energy-gathered jet is generally higher, the penetration depth is larger, but the utilization rate of the liner is lower, and the penetration capability of the jet can be greatly reduced after the jet breaks. The second type of EFP is a high-speed projectile formed by deforming the liner after explosive detonation, has high utilization rate, has the advantages of insensitivity to explosive height, large penetration aperture and the like, but has small penetration depth and small head speed. For the third type of rod-type jet, the energy-gathering rod-type penetration body between the two metal jets has higher utilization rate, larger penetration range and larger effective action distance than a liner of the energy-gathering jet, and simultaneously has higher speed, stronger penetration capability and longer length than an explosion-formed projectile. The traditional shaped charge is limited by a forming mechanism, a liner material and the like, and the penetration capability of the traditional shaped charge is difficult to realize high-efficiency damage to the structure.
It is therefore desirable to design a new efficient linear energy concentrating cutting apparatus.
Disclosure of Invention
According to the technical problem that the existing charging structure cannot provide enough penetration capacity, the novel efficient linear energy-gathering cutting device is provided. The invention mainly utilizes the change of the angle between the shaped charge cover and the charge shell and the addition of an auxiliary structure on the shaped charge cover, thereby achieving the purpose of obtaining enough explosion penetration capability.
The technical means adopted by the invention are as follows:
a novel efficient linear energy-gathering cutting device is characterized by comprising: the explosive charging device comprises an explosive charging shell, an explosive type cover, an auxiliary structure and explosive charging, wherein the explosive charging shell is of a plate-shaped structure with a door-shaped section; the liner comprises a liner I and a liner II, the liner I and the liner II are of plate-shaped structures, the lower ends of the liner I and the liner II are respectively connected with the front end of the inner wall of the explosive shell, and the upper ends of the liner I and the liner II are not connected; the auxiliary structure is a square plate-shaped structure and is arranged at the upper ends of the liner I and the liner II; the powder charge is arranged in a cavity formed by the powder charge shell, the shaped charge cover and the auxiliary structure.
Further, the powder charge shell includes powder charge roof, powder charge curb plate I and powder charge curb plate II, the powder charge roof the powder charge curb plate I with powder charge curb plate II is bar platelike structure, powder charge curb plate I with powder charge curb plate II parallel arrangement each other is in the lower extreme of powder charge roof both sides.
Further, the lower end of the liner I is connected with the lower end of the inner side of the charge side plate I, the liner II is connected with the lower end of the inner side of the charge side plate II, the included angle between the liner I and the lower end of the inner side of the charge side plate I is the same as the included angle between the liner II and the lower end of the inner side of the charge side plate II, the included angle range between the liner I and the lower end of the inner side of the charge side plate I is 30-60 degrees, the head speed of the penetration body is the largest when the included angle is 30 degrees, the diameter of the penetration body is the smallest, the effective jet flow quality is the largest, and the maximum head speed of the penetration body is smaller along with the increasing of the included angle, the diameter of the penetration body is larger, and the effective jet flow quality is smaller.
Further, the distance between two side walls of the charge shell is the charge length, the section length of the auxiliary structure is 0.1-0.3 times of the charge length, two ends of the auxiliary structure need to exceed the liner connecting plate, and the head speed of the penetration body is increased and then reduced along with the increase of the section length of the auxiliary structure.
Further, the thickness of the auxiliary structure is 1-3 times of the thickness of the liner.
Further, the thickness of the liner connecting plate is 0.5 times that of the liner I and the liner II.
Compared with the prior art, the invention has the following advantages:
1. according to the novel efficient linear energy-gathered cutting device, the auxiliary structure is additionally arranged on the medicine-shaped cover, so that jet flow with higher speed and effective jet flow mass fraction can be formed after detonation, the penetration capability of the jet flow can be effectively improved, and the cutting efficiency and effect are improved.
2. According to the novel efficient linear energy-gathering cutting device provided by the invention, the state of the penetration body is effectively controlled by changing the included angle between the shaped charge cover and the charge shell.
Based on the reasons, the invention can be widely popularized in the fields of blasting technology and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a novel efficient linear energy-gathering cutting device according to the invention.
Fig. 2 is a cutting schematic diagram of a penetration body of the novel efficient linear energy-gathering cutting device.
Fig. 3 is a schematic diagram of the penetration body speed of the novel efficient linear energy-gathering cutting device.
In the figure: 1. a charge top plate; 2. a charging side plate I; 3. a charging side plate II; 4. a liner I; 5. a shaped charge liner II; 6. an auxiliary structure; 7. charging; 8. shaped charge cover connecting plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1-2, the present invention provides a novel efficient linear energy-gathering cutting device, comprising: the powder charging device comprises a powder charging shell, a powder charging cover, an auxiliary structure 6 and a powder charging 7, wherein the powder charging shell is of a plate-shaped structure with a door-shaped cross section, the powder charging shell comprises a powder charging top plate 1, a powder charging side plate I2 and a powder charging side plate II 3, the powder charging top plate 1, the powder charging side plate I2 and the powder charging side plate II 3 are all of strip-shaped plate-shaped structures, and the powder charging side plate I2 and the powder charging side plate II 3 are arranged at the lower ends of two sides of the powder charging top plate 1 in; the liner comprises a liner I4 and a liner II 5, the liner I4 and the liner II 5 are of plate-shaped structures, the lower end of the liner I4 is connected with the lower end of the inner side of the charge side plate I2, the liner II 5 is connected with the lower end of the inner side of the charge side plate II 3, the upper ends of the liner I4 and the liner II 5 are provided with liner connecting plates 8, the thickness of the liner connecting plates is 0.5 times of the thickness of the liner I4 and the liner II 5, the included angle between the liner I4 and the lower end of the inner side of the charge side plate I2 is the same as the included angle between the liner II 5 and the lower end of the inner side of the charge side plate II 3, the included angle between the liner I4 and the lower end of the inner side of the charge side plate I2 ranges from 30 degrees to 60 degrees, and the head speed of the penetrating body is the maximum when the included angle is 30 degrees, The diameter of the penetration body is minimum, the effective jet flow mass is maximum, the maximum speed of the head of the penetration body is smaller along with the increasing of the included angle, the diameter of the penetration body is larger, and the effective jet flow mass is smaller; the auxiliary structure 6 is a square plate-shaped structure, the auxiliary structure 6 is arranged at the upper end of the shaped charge cover connecting plate 8, the distance between two side walls of the charge shell is the charge length, the section length of the auxiliary structure 6 is 0.1-0.3 times of the charge length, two ends of the auxiliary structure 6 need to exceed the shaped charge cover connecting plate 8, the head speed of the penetration body is increased and then reduced along with the increase of the section length of the auxiliary structure 6, and the thickness of the auxiliary structure 6 is 1-3 times of the thickness of the shaped charge cover; the charge 7 is arranged in a cavity formed by the charge shell, the liner and the auxiliary structure 6.
Example 1
As shown in fig. 1-2, the present invention provides a novel efficient linear energy-gathering cutting device, comprising: the powder charging device comprises a powder charging shell, a powder charging cover, an auxiliary structure 6 and a powder charging 7, wherein the powder charging shell is of a plate-shaped structure with a door-shaped cross section, the powder charging shell comprises a powder charging top plate 1, a powder charging side plate I2 and a powder charging side plate II 3, the powder charging top plate 1, the powder charging side plate I2 and the powder charging side plate II 3 are all of strip-shaped plate-shaped structures, and the powder charging side plate I2 and the powder charging side plate II 3 are arranged at the lower ends of two sides of the powder charging top plate 1 in; the liner comprises a liner I4 and a liner II 5, the liner I4 and the liner II 5 are of plate-shaped structures, the lower end of the liner I4 is connected with the lower end of the inner side of the side plate I2 of the charge 7, the liner II 5 is connected with the lower end of the inner side of the side plate II 3 of the charge, the upper ends of the liner I4 and the liner II 5 are provided with liner connecting plates 8, the thickness of the liner connecting plates is 0.5 times of the thickness of the liner I4 and the liner II 5, the included angle between the liner I4 and the lower end of the inner side of the charge side plate I2 is the same as that between the liner II 5 and the lower end of the inner side of the charge side plate II 3, the included angle range between the liner I4 and the lower end of the inner side of the charge side plate I2 is 30 degrees, the head speed of the penetration body is maximum when the included angle is 30 degrees as shown in figure 3, The penetration body has the smallest diameter and the largest effective jet flow quality; the auxiliary structure 6 is a square plate-shaped structure, the auxiliary structure 6 is arranged at the upper end of the shaped charge cover connecting plate 8, the distance between two side walls of the charge shell is charge length, the section length of the auxiliary structure 6 is 0.2 times of the charge length, two ends of the auxiliary structure 6 need to exceed the shaped charge cover connecting plate 8, the head speed of the penetration body is increased firstly and then reduced along with the increase of the section length of the auxiliary structure 6, the thickness of the auxiliary structure 6 is 2 times of the thickness of the shaped charge cover, and a cavity is generated when the auxiliary structure 6 is too small and too large in thickness and explodes; the charge 7 is arranged in a cavity formed by the charge shell, the liner and the auxiliary structure 6.
During the cutting process, as shown in fig. 2, under the action of the auxiliary structure and the liner with the included angle of 30 degrees, the penetration body generated by explosion penetrates through a target plate to be cut at the maximum head speed and the maximum effective jet mass.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A novel efficient linear energy-gathering cutting device is characterized by comprising: the explosive charging device comprises an explosive charging shell, an explosive type cover, an auxiliary structure and explosive charging, wherein the explosive charging shell is of a plate-shaped structure with a door-shaped section; the liner comprises a liner I and a liner II, the liner I and the liner II are of plate-shaped structures, the lower ends of the liner I and the liner II are respectively connected with the front end of the inner wall of the explosive shell, and liner connecting plates are arranged at the upper ends of the liner I and the liner II; the auxiliary structure is a square plate-shaped structure and is arranged on the liner and liner connecting plate; the powder charge is arranged in a cavity formed by the powder charge shell, the shaped charge cover and the auxiliary structure.
2. The novel efficient linear energy-gathering cutting device as claimed in claim 1, wherein the charge shell comprises a charge top plate, a charge side plate I and a charge side plate II, the charge top plate, the charge side plate I and the charge side plate II are all of strip-shaped plate structures, and the charge side plate I and the charge side plate II are arranged at the lower ends of two sides of the charge top plate in parallel.
3. The novel efficient linear energy-gathering cutting device as claimed in claim 1, wherein the lower end of the liner I is connected with the inner lower end of the charge side plate I, the liner II is connected with the inner lower end of the charge side plate II, the included angle between the liner I and the inner lower end of the charge side plate I is the same as the included angle between the liner II and the inner lower end of the charge side plate II, the included angle between the liner I and the inner lower end of the charge side plate I ranges from 30 degrees to 60 degrees, the head speed of the penetration body is the maximum when the included angle is 30 degrees, the diameter of the penetration body is the minimum, the effective jet flow quality is the maximum, and the maximum head speed of the penetration body is smaller as the angle of the included angle is increased, the diameter of the penetration body is larger, and the effective jet flow quality is smaller.
4. A novel efficient linear energy-gathering cutting device as claimed in claim 1, wherein the distance between the two side walls of the charge shell is the charge length, the section length of the auxiliary structure is 0.1-0.3 times of the charge length, the two ends of the auxiliary structure need to exceed the liner connecting plate, and the head speed of the penetration body is increased and then reduced along with the increase of the section length of the auxiliary structure.
5. The novel high efficiency linear energy concentrating cutting apparatus according to claim 1, wherein the thickness of the secondary structure is 1-3 times the liner thickness.
6. The novel high efficiency linear shaped energy cutting device according to claim 1, wherein the thickness of said liner connecting plate is 0.5 times the thickness of said liner i and said liner ii.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906758.7A CN112066814A (en) | 2020-09-01 | 2020-09-01 | Novel high-efficient linear energy-gathering cutting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010906758.7A CN112066814A (en) | 2020-09-01 | 2020-09-01 | Novel high-efficient linear energy-gathering cutting device |
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| CN112066814A true CN112066814A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010906758.7A Pending CN112066814A (en) | 2020-09-01 | 2020-09-01 | Novel high-efficient linear energy-gathering cutting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838628A (en) * | 2022-05-05 | 2022-08-02 | 中国工程物理研究院流体物理研究所 | Energy gathering device for forming shaped projectile |
| CN114993124A (en) * | 2022-06-08 | 2022-09-02 | 安徽理工大学 | Efficient annular energy-gathering cutter |
| CN115289926A (en) * | 2022-04-21 | 2022-11-04 | 北方爆破科技有限公司 | Assembled multidirectional energy-gathering cover and mounting method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115289926A (en) * | 2022-04-21 | 2022-11-04 | 北方爆破科技有限公司 | Assembled multidirectional energy-gathering cover and mounting method thereof |
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| CN114993124A (en) * | 2022-06-08 | 2022-09-02 | 安徽理工大学 | Efficient annular energy-gathering cutter |
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Application publication date: 20201211 |