Perforating charge scraping mechanism

Abstract

The utility model discloses a perforating charge scraping mechanism which comprises a base, and a scraper mounting seat, a scraper assembly and a protective cover are sequentially arranged on the base from bottom to top. A first inner cavity with the top open and a plurality of second inner cavities with the tops open are formed in the scraper mounting base, and the second inner cavities are formed in the outer side of the first inner cavity in the circumferential direction. A supporting block is vertically arranged in the middle of the first inner cavity, and a spring assembly is vertically arranged in the second inner cavity. The scraper assembly comprises a plurality of mounting blocks in one-to-one correspondence with the spring assemblies, and scrapers are mounted on the side walls of the mounting blocks; the bottom end of the pressing block is connected with the spring assembly, and the top end of the pressing block can be connected with the mounting block; the upper end of the mounting block is connected with the protective cover; a first slope is arranged on one side, facing the supporting block, of the lower end of the mounting block; a second slope is arranged at the position, corresponding to the first slope, of the top of the supporting block and can be attached to the first slope.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of perforating charge processing, specifically relates to a perforating charge medicine scraping mechanism. BACKGROUND

[0002] Perforating charges are used to penetrate oil well casings and strata to form oil and gas passages in oil exploitation. In the production process of perforating charges, the mouth of the perforating charge after being charged with propellant usually has some excess propellant attached thereto, which needs to be cleaned. In the prior art, the excess propellant attached to the inner wall of the medicine cover is cleaned mainly by manual operation, which has the defects that the manual medicine scraping speed is slow, the cleaning cycle is long, the cleaning efficiency is low, and the production efficiency of the perforating charge is reduced; the workers are in contact with sharp scrapers and explosive residues, and there is a risk of scratches and explosions; the scraper angle and scraping force depend on the experience of the workers, and uneven medicine scraping is likely to occur, which needs to be improved. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a perforating charge medicine scraping mechanism to solve the technical problems of low cleaning efficiency and uneven medicine scraping in the existing perforating charge manual medicine scraping operation.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A perforating charge medicine scraping mechanism comprises a base, a scraper mounting seat, a scraper assembly and a protective cover are sequentially arranged on the base from bottom to top, and a first inner cavity with an open top is formed in the scraper mounting seat, and a plurality of second inner cavities with open tops are formed in the scraper mounting seat, and the plurality of second inner cavities are arranged on the outer side of the first inner cavity in the circumferential direction; a support block is vertically arranged in the middle of the first inner cavity, and a spring assembly is vertically arranged in the middle of the second inner cavity;

[0006] The scraper assembly comprises a plurality of mounting blocks corresponding to the spring assemblies one by one, and a scraper is mounted on the side wall of the mounting block;

[0007] The scraper mounting seat is further provided with a pressing block, the bottom end of the pressing block is connected with the spring assembly, and the top end of the pressing block can be connected with the mounting block;

[0008] The top end of the pressing block can be connected with the mounting block;

[0009] The top end of the pressing block can be connected with the mounting block;

[0010] The utility model also has the following technical features:

[0011] Specifically, the spring assembly comprises a spring seat, a spring post vertically arranged on the spring seat, and a compression spring sleeved on the spring post.

[0012] Further, the third inner cavity, the fourth inner cavity and the fifth inner cavity are sequentially arranged in the pressing block from top to bottom; the mounting block is arranged in the third inner cavity; the spring post penetrates the fifth inner cavity and enters the fourth inner cavity; the top of the compression spring is in abutment with the top of the fifth inner cavity, and the bottom of the compression spring is in abutment with the spring seat.

[0013] Further, the radial limiting spring is embedded in the mounting block, one end of the radial limiting spring is fixedly connected with the mounting block, and the other end of the radial limiting spring is slidably connected with the inner wall of the scraper mounting seat.

[0014] Further, the mounting block comprises a first connecting section, a second connecting section and a third connecting section which are integrally connected from top to bottom; a step for arranging the scraper is formed at the connecting position of the first connecting section and the second connecting section; the radial mounting hole is arranged in the third connecting section, and the radial limiting spring is arranged in the radial mounting hole.

[0015] Further, the outer contour of the protective cover can be matched with the inner contour of the medicine-shaped cover arranged in the perforating charge shell.

[0016] Further, the connecting block is arranged on the top of the mounting block, and the connecting block is connected with the protective cover.

[0017] Further, the number of the second inner cavities is two, and the two second inner cavities are symmetrically arranged on the two sides of the supporting block.

[0018] Further, the number of the mounting blocks is two, and the two mounting blocks are symmetrically arranged on the two sides of the supporting block.

[0019] Compared with the prior art, the utility model has the following technical effects:

[0020] The utility model discloses the gravity control mounting block in the vertical movement of perforating charge shell, realizes the position quick, accurate adjustment of scraper, after the scraper enters the perforating charge shell body, can remove the medicine remaining on the inner wall of perforating charge shell body with the rotary mechanism connected on the medicine scraping mechanism, realizes automatic medicine scraping operation, after the medicine scraping ends, realizes the quick reset of scraper through the spring assembly arranged, satisfies the requirement of explosion -proof and the requirement of pyrotechnics industry, improves production efficiency, realizes personnel, medicine separation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model when scraping medicine;

[0022] Figure 2 is an exploded view of the utility model;

[0023] Figure 3 is a schematic view of a briquetting structure.

[0024] The meanings of various reference numerals in the drawings are as follows:

[0025] 1-base, 2-blade mounting seat, 3-blade assembly, 4-protective cover, 5-perforating bullet shell, 6-charge cover; 21-first inner cavity, 22-second inner cavity, 23-spring assembly, 24-briquetting block, 25-supporting block; 31-mounting block, 32-blade, 33-radial limit spring, 34-connection block; 231-spring seat, 232-spring column, 233-compression spring; 311-first connection section, 312-second connection section, 313-third connection section.

[0026] The specific content of the utility model is further explained and described in detail in combination with the following embodiments. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model are given below, and it should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation made on the basis of the technical solutions of the present application falls within the protection scope of the utility model.

[0028] The terms "upper", "lower", "front", "rear", "top", "bottom" and the like used in the utility model indicate the orientation or positional relationship only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and "inner" and "outer" refer to the inner and outer contours of the corresponding components. The above terms should not be understood as limiting the utility model.

[0029] In addition, the ordinal numbers "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0030] In the utility model, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly without making the opposite statement, for example, it can be fixedly connected, or it can be detachably connected or integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Unless otherwise specified, all components in this utility model can be purchased from the market.

[0032] Example 1

[0033] Following the above technical solutions, such as Figures 1 to 2 As shown, this embodiment provides a perforating bullet scraping mechanism, including a base 1. From bottom to top, a scraper mounting seat 2, a scraper assembly 3, and a protective cover 4 are arranged on the base 1. The base 1 and the scraper mounting seat 2 are inserted into each other. Specifically, the base 1 has an open insertion hole at the top, and the lower end of the scraper mounting seat 2 is provided with a plug that matches the insertion hole.

[0034] like Figure 2 As shown, the scraper mounting base 2 has a first inner cavity 21 with an open top and two second inner cavities 22 with an open top, and the two second inner cavities 22 are symmetrically arranged on the left and right sides of the first inner cavity 21; a support block 25 is vertically arranged in the middle of the first inner cavity 21, and a spring assembly 23 is vertically arranged in the second inner cavity 22.

[0035] The scraper assembly 3 includes two mounting blocks 31 that correspond one-to-one with the spring assembly 23, and a scraper 32 is mounted on the side wall of each mounting block 31;

[0036] The scraper mounting base 2 is also provided with a pressure block 24. The bottom end of the pressure block 24 is connected to the spring assembly 23, and the top end can be connected to the mounting block 31.

[0037] The upper end of the mounting block 31 is connected to the protective cover 4, and the lower end of the mounting block 31 is provided with a first inclined surface on the side facing the support block 25; the top of the support block 25 is provided with a second inclined surface corresponding to the position of the first inclined surface, and the first inclined surface and the second inclined surface can fit together.

[0038] When the lower end of the mounting block 31 moves under the gravity of the perforated shell 5, the first inclined surface moves along the second inclined surface. As the mounting block 31 moves down, the scraper 32 enters the perforated shell 5 to remove the powder adhering to the inner wall of the bottom of the perforated shell 5.

[0039] As a preferred embodiment, the spring assembly 23 includes a spring seat 231, a spring post 232 vertically disposed on the spring seat 231, and a compression spring 233 sleeved on the spring post 232. During the downward movement of the pressure block 23 with the mounting block 31, the compression spring 233 can axially limit the pressure block 23, thereby limiting the downward movement of the scraper 32.

[0040] As a preferred scheme of the embodiment, the third inner cavity, the fourth inner cavity and the fifth inner cavity are arranged in the pressing block 23 from top to bottom; the mounting block 31 is arranged in the third inner cavity; the spring column 232 is arranged in the fourth inner cavity through the fifth inner cavity; the top of the compression spring 233 is in abutment with the top of the fifth inner cavity, and the bottom of the compression spring 233 is in abutment with the spring seat 231; during the movement of the pressing block 23 and the mounting block 31, the compression spring 233 can realize axial limiting.

[0041] As a preferred scheme of the embodiment, the radial limiting spring 33 is arranged in the mounting block 31; one end of the radial limiting spring 33 is fixedly connected with the mounting block 31, and the other end is slidably connected with the inner wall of the second inner cavity; the radial limiting spring 33 is used for limiting the radial movement of the mounting block 31.

[0042] As a preferred scheme of the embodiment, the mounting block 31 comprises the first connecting section 311, the second connecting section 312 and the third connecting section 313 which are integrally connected from top to bottom; the step for arranging the scraper 32 is formed at the connecting position of the first connecting section 311 and the second connecting section 312; the radial mounting hole is arranged in the third connecting section 313; and the radial limiting spring 33 is arranged in the radial mounting hole. When the mounting block 31 moves downward, the bottom surface of the second connecting section 312 can be in abutment with the top surface of the scraper mounting seat 2, so that the limiting is realized.

[0043] As a preferred scheme of the embodiment, the outer contour of the protective cover 4 can match the inner contour of the medicine-shaped cover 6 arranged in the perforating bullet shell 5.

[0044] As a preferred scheme of the embodiment, the connecting block 34 is arranged on the top of the mounting block 31, and the connecting block 34 is connected with the protective cover 4.

[0045] As a preferred scheme of the embodiment, the number of the second inner cavities is two, and the two second inner cavities are symmetrically arranged on the two sides of the supporting block 25.

[0046] As a preferred scheme of the embodiment, the number of the mounting blocks 31 is two, and the two mounting blocks 31 are symmetrically arranged on the two sides of the supporting block 25.

[0047] In use, the medicine-shaped cover 6 in the perforating bullet shell 5 to be wiped is arranged on the protective cover 4; when the lower end of the mounting block 31 moves under the action of the gravity of the perforating bullet shell 5, the first inclined surface moves along the second inclined surface; with the movement of the mounting block 31, the scraper 32 enters the perforating bullet shell 5, and the powder attached to the inner wall of the bottom of the perforating bullet shell 5 is removed.

[0048] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0049] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0050] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed in the present disclosure.

Claims

1. A charge scraping mechanism for a perforating charge, comprising a base (1), characterized in that, The base (1) is sequentially provided with a scraper mounting seat (2), a scraper assembly (3) and a protective cover (4) from bottom to top; The scraper mounting seat (2) is provided with a first inner cavity (21) with an open top and a plurality of second inner cavities (22) with open tops, and the plurality of second inner cavities (22) are circumferentially arranged on the outer side of the first inner cavity (21); a support block (25) is vertically arranged in the middle of the first inner cavity (21), and a spring assembly (23) is vertically arranged in the second inner cavity (22); The scraper assembly (3) comprises a plurality of mounting blocks (31) corresponding to the spring assemblies (23), and a scraper (32) is mounted on the side wall of the mounting block (31); The scraper mounting seat (2) is further provided with a pressing block (24), the bottom end of the pressing block (24) is connected with the spring assembly (23), and the top end can be connected with the mounting block (31); The upper end of the mounting block (31) is connected with the protective cover (4), and the lower end of the mounting block (31) is provided with a first inclined surface on the side facing the support block (25); the top of the support block (25) is provided with a second inclined surface corresponding to the position of the first inclined surface, and the first inclined surface and the second inclined surface can be attached.

2. The charge scraper mechanism of claim 1, wherein, The spring assembly (23) comprises a spring seat (231), a spring column (232) vertically arranged on the spring seat (231), and a compression spring (233) sleeved on the spring column (232).

3. The charge scraper mechanism of claim 2, wherein: The pressing block (24) is provided with a third inner cavity, a fourth inner cavity and a fifth inner cavity from top to bottom; the mounting block (31) is deeply inserted into the third inner cavity; the spring column (232) penetrates into the fourth inner cavity through the fifth inner cavity, and the top of the compression spring (233) abuts against the top of the fifth inner cavity, and the bottom abuts against the spring seat (231).

4. The charge cup mechanism of claim 1 wherein, The mounting block (31) is embedded with a radial limiting spring (33), one end of the radial limiting spring (33) is fixedly connected with the mounting block (31), and the other end is slidably connected with the inner wall of the scraper mounting seat (2).

5. The charge scraper mechanism of claim 4, wherein: The mounting block (31) comprises a first connecting section (311), a second connecting section (312) and a third connecting section (313) which are integrally connected from top to bottom, a step for arranging the scraper (32) is formed at the connection between the first connecting section (311) and the second connecting section (312), and a radial mounting hole is formed in the third connecting section (313), and the radial limiting spring (33) is arranged in the radial mounting hole.

6. The charge cup mechanism of claim 1 wherein, The outer contour of the protective cover (4) can match the inner contour of the medicine-shaped cover (6) arranged in the perforating bullet shell (5).

7. The charge cup mechanism of claim 1 wherein, The mounting block (31) is provided with a connecting block (34) at the top, and the connecting block (34) is connected with the protective cover (4).

8. The charge pill scraper mechanism of claim 1, wherein, The number of the second inner cavities is two, and the two second inner cavities are symmetrically arranged on both sides of the support block (25).

9. The charge pill scraper mechanism of claim 1 wherein, The number of the mounting blocks (31) is two, and the two mounting blocks (31) are symmetrically arranged on both sides of the support block (25).

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