Automatic distributing and feeding mechanism for explosive cartridges in intelligent charging system

Abstract

The utility model discloses an automatic distributing and feeding mechanism for explosive cartridges in an intelligent charging system, which realizes automatic distributing and stepping type automatic feeding of the explosive cartridges and solves the problems of high labor intensity and low charging efficiency in charging of emulsion explosive cartridges. Comprising a stepping type automatic material distributing mechanism ingeniously connected with an explosive cartridge storage bin, a material distributing rotating shaft mounting frame (304), a material distributing rotating shaft (311) and a material distributing rotating shaft driving servo motor (305) form a material distributing mechanism, explosive cartridges (301) stored in the bin are distributed and output one by one, and an air cylinder conveying mode is adopted; and the separated explosive cartridges are automatically conveyed into the pneumatic charging machine to cooperate with the pneumatic charging machine, so that automatic charging and filling of the explosive cartridges of the blast hole are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of intelligent charging system of blasting hole in tunnel blasting excavation, in particular to a kind of automatic material feeding mechanism of explosive cartridge in intelligent charging system and working method. BACKGROUND

[0002] In the process of tunnel blasting excavation construction, the filling of detonating cartridge and explosive cartridge is the most important link in the whole construction process, and the filling efficiency and quality of cartridge directly affect the progress of blasting excavation and the construction quality of the whole tunnel; Due to the limitation of tunnel excavation environment, tunnel blasting explosive generally adopts the form of emulsion explosive cartridge and is filled into the blasting hole on the excavated working face; The detonating cartridge is generally made into a sausage-like form structure, and an electronic detonator is embedded in the detonating cartridge, and the lead wire of the electronic detonator is led out of the detonating cartridge and connected with the junction box; The shape of the explosive cartridge is similar to a complete sausage, and only emulsion explosive is covered in the cylindrical coating; The explosive cartridge is filled into the bottom of the blasting hole, and the lead wire of the detonator is led out of the blasting hole and connected with the junction box on the working face outside the blasting hole; Then, a plurality of explosive cartridges are sequentially filled to fill the blasting hole with explosive; After the explosive cartridges are filled in the blasting hole, the junction boxes at the outer end of the lead wire of the detonator are connected to the busbar, and finally, the blasting signal is sent through the busbar to detonate the explosive filled in the working face, thereby realizing the blasting excavation of the tunnel.

[0003] At present, in the process of tunnel blasting construction, the explosive cartridge is filled by manual charging method, and the operator fills the explosive in high temperature, high humidity and high dust environment, because the blasting working face is as high as ten meters or more, and the high strength explosive filling operation is carried out in high altitude, there are hidden dangers of high altitude operation, plus the harsh construction environment, the quality of explosive filling is not high, the labor intensity is too large and the charging efficiency is low, how to develop an intelligent charging system has become an urgent problem to be solved in construction site.

[0004] With the development of robot technology, using intelligent robots to replace manual on-site charging has become a topic that the present technical personnel are trying to overcome; but how to realize the full-automatic charging of the mechanical charging hand at the blasting face is a primary problem to be solved, each blasting hole on the blasting face needs to be filled with an initiating explosive and several explosive charges; the automatic step-by-step water supply of the initiating explosive has certain difficulty, since the initiating explosive is attached with a detonator lead wire and a terminal box, how to complete the filling of the initiating explosive at one time and smoothly shake out the lead wire outside the blasting hole, so that the terminal box of each initiating explosive is also smoothly set on the blasting face, and the connection of the terminal box with the detonating bus in the later stage is facilitated, which becomes a difficult problem to be overcome by the present technical personnel; the filling amount of the explosive charge is large, how to effectively separate the explosive charges gathered together in the explosive charge bin and step-by-step fill them into the blasting hole to realize full-automatic operation is another difficult problem to be solved by the present technical personnel. SUMMARY

[0005] The application provides an automatic explosive charge separating and supplying mechanism in an intelligent charging system, realizes automatic separating and step-by-step automatic supplying of explosive charges, and solves the technical problems of large labor intensity and low charging efficiency in emulsion explosive charge charging.

[0006] The application solves the above technical problems by the following technical scheme:

[0007] The general idea of the application is to develop a step-by-step automatic separating mechanism which is cleverly connected with an explosive charge storage bin, and to adopt a cylinder conveying mode to automatically convey the separated explosive charges to a pneumatic charging machine, so as to realize automatic charging and filling of the explosive charges in the blasting hole in cooperation with the pneumatic charging machine.

[0008] An automatic explosive charge separating and supplying mechanism in an intelligent charging system, comprising a box-type frame and explosive charges, structure completely same front bin box and rear bin box are respectively erected on the box-type frame, explosive charges are stored in the front bin box and the rear bin box, the bottom plate of the front bin box is an inclined bottom plate, a rectangular discharge port is arranged at the lowest part of the inclined bottom plate, a separating rotary shaft mounting frame is connected below the rectangular discharge port, a separating rotary shaft is movably installed in the separating rotary shaft mounting frame, a separating rotary shaft driving servo motor is arranged on the rear side vertical surface of the separating rotary shaft mounting frame, the output shaft of the separating rotary shaft driving servo motor is connected with the separating rotary shaft, explosive charge embedding grooves are arranged on the arc-shaped outer side surface of the shaft body of the separating rotary shaft at equal intervals, a U-shaped material receiving groove is hung below the separating rotary shaft, an explosive charge pushing cylinder is arranged at the rear end U-shaped port of the U-shaped material receiving groove, a conveying pipe is connected at the front end U-shaped port of the U-shaped material receiving groove, and a pneumatic charging machine is connected at the front end port of the conveying pipe.

[0009] The connecting shaft hole is arranged on the front side vertical surface of the front shaft end of the distributing rotating shaft, the supporting shaft penetrating hole is arranged on the rear side vertical surface of the rear shaft end of the distributing rotating shaft, and the supporting shaft seat is arranged on the rear end frame in the distributing rotating shaft mounting frame; the output shaft of the distributing rotating shaft driving servo motor is connected with the connecting shaft hole, and the supporting shaft seat is movably arranged in the supporting shaft penetrating hole; the charge pushing disc is connected to the output shaft of the explosive charge pushing cylinder, and the charge pushing disc is arranged in the U-shaped material receiving groove which is hung below the distributing rotating shaft mounting frame by two connecting plates.

[0010] The left and right arc-shaped material blocking plates are arranged between the upper port of the U-shaped material receiving groove and the lower port of the distributing rotating shaft mounting frame; the vertical explosive charge separating plates are arranged in the front bin body at intervals, and the material passing gap is arranged between the bottom end of the vertical explosive charge separating plate and the bin bottom plate of the front bin body; the inclined guide plate is connected to the lower end of the first vertical explosive charge separating plate in the front bin body, and the first separated bin on the left side of the first vertical explosive charge separating plate is an empty bin.

[0011] The second set of distributing and feeding mechanism is connected to the rectangular discharge port of the rear bin body, and the structure of the second set of distributing and feeding mechanism is completely same as that of the distributing and feeding mechanism connected to the rectangular discharge port of the front bin body, and the second set of distributing and feeding mechanism is connected to the second pneumatic charging machine through the second conveying pipe.

[0012] A working method of an automatic distributing and feeding mechanism of explosive charges in an intelligent charging system, characterized by comprising the following steps:

[0013] Firstly, the explosive charges are horizontally placed in each separated bin in the front bin body except the first separated bin in the front-to-back direction, and each separated bin is filled with explosive charges;

[0014] Secondly, the explosive charges at the bottom of the second separated bin on the right side of the first vertical explosive charge separating plate are pushed into the first explosive charge embedding groove below the inclined guide plate through the inclined guide plate;

[0015] Thirdly, the distributing rotating shaft driving servo motor is started to make the distributing rotating shaft stepwise rotate counterclockwise, and the distributing rotating shaft driving servo motor stops rotating when the second explosive charge embedding groove is aligned with the discharge port below the inclined guide plate;

[0016] Fourthly, the second explosive charge is pushed into the second explosive charge embedding groove through the discharge port below the inclined guide plate;

[0017] Fifth step, the second time to start the distribution of rotating shaft drive servo motor to make the distribution of rotating shaft stepwise counterclockwise rotation, when the third explosive charge embedded in the groove is aligned with the discharge port below the inclined guide plate, the distribution of rotating shaft drive servo motor stops rotating;

[0018] Sixth step, the third explosive charge enters into the third explosive charge embedded groove through the discharge port below the inclined guide plate;

[0019] Seventh step, repeat the above steps, so that the explosive charge embedded in the groove on the left half of the arc surface of the distribution of rotating shaft is loaded into the explosive charge, so as to realize the distribution of explosive charge;

[0020] Eighth step, when the first explosive charge embedded in the groove rotates to the U-shaped receiving groove directly above, the first explosive charge falls into the U-shaped receiving groove;

[0021] Ninth step, start the explosive charge pushing cylinder, the output shaft of the explosive charge pushing cylinder is stretched out, and the explosive charge pushing disc pushes the first explosive charge falling into the U-shaped receiving groove forward;

[0022] Tenth step, the pushed first explosive charge enters into the pneumatic charging machine through the conveying pipe, realizing the automatic feeding of the pneumatic charging machine.

[0023] Eleventh step, after the first explosive charge is pushed out, control the explosive charge pushing cylinder, and retract the output shaft of the explosive charge pushing cylinder;

[0024] Twelfth step, control the distribution of rotating shaft drive servo motor stepwise again, so that the second explosive charge embedded in the groove rotates to the U-shaped receiving groove directly above, and the second explosive charge falls into the U-shaped receiving groove;

[0025] In this way, the explosive charge in the stock bin is distributed one by one into the explosive charge embedded groove of the distribution of rotating shaft, and is sequentially conveyed to the U-shaped receiving groove, and is then automatically fed to the pneumatic charging machine.

[0026] The stock bin of the present application adopts isolated split type design, realizes stepwise distribution of blasting charge by controlling servo motor, and cooperates with the cylinder to realize automatic feeding of the pneumatic charging machine, and realizes automatic filling of the explosive charge of blasting hole. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0028] Figure 2 It is a cooperation relationship diagram of the distribution of rotating shaft 311, stock bin and U-shaped receiving groove 307 of the present application;

[0029] Figure 3is a structural schematic view of the front hopper box 302 of the present application;

[0030] Figure 4 is a structural schematic view of the distributing mechanism of the present application;

[0031] Figure 5 is a structural schematic view of the distributing rotating shaft 311 of the present application;

[0032] Figure 6 is a structural schematic view of the distributing rotating shaft mounting frame 304 of the present application;

[0033] Figure 7 is a structural schematic view of the U-shaped receiving chute 307 of the present application. DETAILED DESCRIPTION

[0034] The present application will be described in detail below with reference to the accompanying drawings:

[0035] An automatic distributing and feeding mechanism for explosive cartridges in an intelligent charging system, comprising a box-type frame 309 and explosive cartridges 301, a front hopper box 302 and a rear hopper box 322 are respectively erected on the box-type frame 309 and are completely identical in structure, the front hopper box 302 and the rear hopper box 322 both store explosive cartridges 301, the bottom plate of the front hopper box 302 is an inclined bottom plate, a rectangular discharge port 303 is arranged at the lowest part of the inclined bottom plate, the explosive cartridges 301 in the hopper box slide along the inclined bottom plate to the discharge port, a distributing rotating shaft mounting frame 304 is connected below the rectangular discharge port 303, a distributing rotating shaft 311 is movably mounted in the distributing rotating shaft mounting frame 304, a distributing rotating shaft driving servo motor 305 is arranged on the rear vertical surface of the distributing rotating shaft mounting frame 304, the output shaft 315 of the distributing rotating shaft driving servo motor 305 is connected with the distributing rotating shaft 311, the distributing rotating shaft mounting frame 304, the distributing rotating shaft 311 and the distributing rotating shaft driving servo motor 305 constitute a distributing mechanism, which realizes the one-by-one distribution of the explosive cartridges 301 stored in the hopper, explosive cartridge embedding grooves 312 are arranged on the arc-shaped outer surface of the shaft body of the distributing rotating shaft 311 at equal intervals, the size of the explosive cartridge embedding grooves 312 is matched with that of the explosive cartridges 301, a U-shaped receiving chute 307 is hung below the distributing rotating shaft 311, an explosive cartridge pushing cylinder 306 is arranged at the rear U-shaped port of the U-shaped receiving chute 307, a conveying pipe 316 is connected at the front U-shaped port of the U-shaped receiving chute 307, and a pneumatic charging machine 317 is connected at the front end port of the conveying pipe 316; after the distributing rotating shaft 311 stepwisely distributes and feeds the explosive cartridges 301 into the U-shaped receiving chute 307, the explosive cartridge pushing cylinder 306 pushes the explosive cartridges 301 to the pneumatic charging machine 317, and finally the pneumatic charging machine 317 charges the explosive cartridges 301 into the blasting holes one by one.

[0036] A connecting shaft hole 313 is arranged on the front side vertical surface of the front shaft end of the distributing rotating shaft 311, a supporting shaft through hole is arranged on the rear side vertical surface of the rear shaft end of the distributing rotating shaft 311, a supporting shaft seat 314 is arranged on the rear end frame in the distributing rotating shaft mounting frame 304; the output shaft 315 of the distributing rotating shaft driving servo motor 305 is connected with the connecting shaft hole 313, the supporting shaft seat 314 is movably arranged in the supporting shaft through hole, under the driving of the distributing rotating shaft driving servo motor 305, the distributing rotating shaft 311 rotates in the distributing rotating shaft mounting frame 304, separates the explosive cartridges 301 stored in the cartridge bin one by one, and transmits them to the U-shaped cartridge receiving groove 307; the cartridge pushing disc 308 is connected on the output shaft of the explosive cartridge pushing cylinder 306, the cartridge pushing disc 308 is arranged in the U-shaped cartridge receiving groove 307, and the U-shaped cartridge receiving groove 307 is hung below the distributing rotating shaft mounting frame 304 through two connecting plates 310.

[0037] The left side arc-shaped material blocking plate 318 and the right side arc-shaped material blocking plate 319 are arranged between the upper port of the U-shaped cartridge receiving groove 307 and the lower port of the distributing rotating shaft mounting frame 304, so as to prevent the explosive cartridges 301 from being stacked on the distributing rotating shaft 311; the explosive cartridge vertical partition plates 320 are arranged in the front cartridge bin body 302 at intervals, and the explosive cartridge vertical partition plate 320 is arranged between the bottom end of the explosive cartridge vertical partition plate 320 and the bottom plate of the front cartridge bin body 302; the inclined guide plate 321 is connected to the lower end of the first explosive cartridge vertical partition plate 324 in the front cartridge bin body 302, and the first partition cartridge bin 323 on the left side of the first explosive cartridge vertical partition plate 324 is empty, that is, no explosive cartridges 301 are placed in the first partition cartridge bin 323, so as to ensure the smooth operation of the distributing rotating shaft 311.

[0038] The second set of distributing and feeding mechanism 325 is connected to the rectangular discharge port of the rear cartridge bin body 322, and the structure of the second set of distributing and feeding mechanism 325 is completely same as that of the distributing and feeding mechanism connected to the rectangular discharge port 303 of the front cartridge bin body 302, and the second set of distributing and feeding mechanism 325 is connected with the second pneumatic charging machine 317 through the second conveying pipe 326; the two sets of cartridge bin bodies and the distributing and feeding mechanisms meet the requirement of the explosive cartridge consumption on the blasting working face.

[0039] The working method of the automatic distributing and feeding mechanism of the explosive cartridges in the intelligent charging system comprises the following steps:

[0040] Firstly, the explosive cartridges 301 are horizontally placed in each partition cartridge bin of the front cartridge bin body 302 in the front-rear direction, and each partition cartridge bin is filled with the explosive cartridges 301;

[0041] The second step is that the explosive cartridge 301 at the bottom of the second compartment on the right side of the vertical partition plate 324 of the first explosive cartridge enters the first explosive cartridge embedding groove 312 below the inclined guide plate 321 on the material distribution rotating shaft 311 through the inclined guide plate 321.

[0042] The third step is to start the servo motor 305 of the material distribution rotating shaft, so that the material distribution rotating shaft 311 rotates counterclockwise in a step manner. When the second explosive cartridge is embedded in the groove 312 and aligned with the discharge port below the inclined guide plate 321, the servo motor 305 of the material distribution rotating shaft stops rotating.

[0043] Step 4: The second explosive charge 301 enters the second explosive charge embedding groove 312 through the discharge port below the inclined guide plate 321;

[0044] Fifth step: The second control of the material distribution rotating shaft drive servo motor 305 starts, causing the material distribution rotating shaft 311 to rotate counterclockwise in a step manner. When the third explosive cartridge is embedded in the groove 312 and aligned with the discharge port below the inclined guide plate 321, the material distribution rotating shaft drive servo motor 305 stops rotating.

[0045] Step 6: The third explosive charge 301 enters the third explosive charge embedding groove 312 through the discharge port below the inclined guide plate 321;

[0046] Step 7: Repeat the above steps to ensure that the explosive cartridges 301 are all inserted into the grooves 312 on the left half-arc surface of the material distribution rotating shaft 311, thereby achieving the material distribution of the explosive cartridges 301.

[0047] Step 8: When the first explosive charge is inserted into the groove 312 and rotated to be directly above the U-shaped receiving groove 307, the first explosive charge 301 falls into the U-shaped receiving groove 307.

[0048] Step 9: Activate the explosive charge pushing cylinder 306. The output shaft of the explosive charge pushing cylinder 306 extends, and the explosive charge pushing disc 308 pushes the first explosive charge 301, which has fallen into the U-shaped receiving groove 307, forward.

[0049] Step 10: The first explosive charge 301, once ejected, enters the pneumatic charging machine 317 through the conveying pipe 316, thus realizing automatic feeding of the pneumatic charging machine 317.

[0050] Step 11: After the first explosive charge 301 is pushed out, control the explosive charge pushing cylinder 306 to retract the output shaft of the explosive charge pushing cylinder 306.

[0051] Twelfth step, control the rotating shaft of the distribution of the driving servo motor 305 step by step again, so that the second explosive roll embedded in the groove 312 is rotated to the top of the U-shaped receiving groove 307, and the second explosive roll 301 falls into the U-shaped receiving groove 307;

[0052] In this way, the explosive rolls 301 in the stock bin are distributed one by one into the explosive roll embedded groove 312 of the distribution rotating shaft 311, and are sequentially conveyed to the U-shaped receiving groove 307, and then automatically supplied to the pneumatic charging machine 317.

Claims

1. An automatic distribution and feeding mechanism of explosive cartridges in an intelligent charging system, comprising a box-type frame (309) and explosive cartridges (301), a front stock bin box (302) and a rear stock bin box (322) with the same structure are respectively arranged on the box-type frame (309), and the explosive cartridges (301) are stored in the front stock bin box (302) and the rear stock bin box (322), characterized in that, The front stock bin box body (302) is provided with an inclined bottom plate, a rectangular discharge port (303) is arranged at the lowest part of the inclined bottom plate, a stock distribution rotating shaft mounting frame (304) is connected below the rectangular discharge port (303), a stock distribution rotating shaft (311) is movably mounted in the stock distribution rotating shaft mounting frame (304), a stock distribution rotating shaft driving servo motor (305) is arranged on the rear side vertical surface of the stock distribution rotating shaft mounting frame (304), the output shaft (315) of the stock distribution rotating shaft driving servo motor (305) is connected with the stock distribution rotating shaft (311), explosive roll embedding grooves (312) are arranged on the arc-shaped outer side surface of the shaft body of the stock distribution rotating shaft (311) at equal intervals, a U-shaped material receiving groove (307) is hung below the stock distribution rotating shaft (311), an explosive roll pushing cylinder (306) is arranged at the U-shaped port of the rear end of the U-shaped material receiving groove (307), a conveying pipe (316) is connected at the U-shaped port of the front end of the U-shaped material receiving groove (307), and a pneumatic charging machine (317) is connected to the front end port of the conveying pipe (316).

2. The automatic distribution and feeding mechanism of the explosive cartridge in the intelligent charging system according to claim 1, characterized in that, A connecting shaft hole (313) is arranged on the front side vertical surface of the front shaft end of the stock distribution rotating shaft (311), a supporting shaft penetrating shaft hole is arranged on the rear side vertical surface of the rear shaft end of the stock distribution rotating shaft (311), and a supporting shaft seat (314) is arranged on the rear end frame in the stock distribution rotating shaft mounting frame (304); the output shaft (315) of the stock distribution rotating shaft driving servo motor (305) is connected with the connecting shaft hole (313), and the supporting shaft seat (314) is movably arranged in the supporting shaft penetrating shaft hole; an explosive roll pushing disc (308) is connected to the output shaft of the explosive roll pushing cylinder (306), and the explosive roll pushing disc (308) is arranged in the U-shaped material receiving groove (307); the U-shaped material receiving groove (307) is hung below the stock distribution rotating shaft mounting frame (304) through two connecting plates (310).

3. The automatic charge feeding mechanism of the explosive cartridge in the intelligent charge system according to claim 1 or 2, characterized in that, Between the upper port of the U-shaped material receiving groove (307) and the lower port of the stock distribution rotating shaft mounting frame (304), a left side arc-shaped material blocking plate (318) and a right side arc-shaped material blocking plate (319) are arranged respectively; explosive roll vertical partition plates (320) are arranged in the front stock bin box body (302) at intervals, and a material passing gap is arranged between the bottom end of the explosive roll vertical partition plate (320) and the bottom plate of the front stock bin box body (302); an inclined guide plate (321) is connected to the lower end of the first explosive roll vertical partition plate (324) in the front stock bin box body (302), and a first partitioned stock bin (323) on the left side of the first explosive roll vertical partition plate (324) is empty.

4. The automatic feeding mechanism of the cartridge according to claim 3, wherein, A second set of stock distribution feeding mechanisms (325) are connected to the rectangular discharge port of the rear stock bin box body (322), and the structure of the second set of stock distribution feeding mechanisms (325) is completely same as that of the stock distribution feeding mechanisms connected to the rectangular discharge port (303) of the front stock bin box body (302), and the second set of stock distribution feeding mechanisms (325) are connected with the second pneumatic charging machine (317) through a second conveying pipe (326).

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