Open-pit mine rock perforation blasting charging device

Abstract

The utility model discloses a strip mine rock perforation blasting charging device, and relates to the technical field of blasting charging. The explosive loading device comprises an explosive loading barrel, a pressing plate is arranged in the explosive loading barrel in a sliding fit mode, a tray is placed at the lower end of the explosive loading barrel, and explosives are placed on the upper side of the tray. The guide rods are elastically and slidably matched with the outer side wall of the lower end of the medicine loading cylinder, the lower ends of the guide rods are elastically and rotatably matched with U-shaped plates, and arc-shaped clamping plates are fixedly matched between the two ends of the U-shaped plates. By means of the arc-shaped clamping plate, one side of the arc-shaped clamping plate is attached to one side of the tray under the action of the U-shaped plate, the problem that the tray slides out of the lower end of the explosive loading barrel in the using process is solved, the problem that the explosive falls off from the lower end of the explosive loading barrel is solved, the explosive can be conveniently placed in an ore rock perforated hole through the explosive loading barrel, and the explosive loading efficiency is improved. And the explosive placing process is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of explosive charging, specifically, it relates to an open-pit mine rock-penetrating explosive charging device. Background Technology

[0002] Open-pit blasting commonly employs the method of perforated blasting. First, blasting holes are excavated in the open-pit mine, then explosives are installed inside the holes, followed by blasting. Explosives can be installed in the blasting holes using either continuous charging or spaced charging. Spaced charging reduces the peak pressure of the blast shock wave, minimizes excessive crushing of the rock around the borehole, prolongs the duration of the shock wave, and reduces rock movement along the resistive line. Therefore, spaced charging is widely used in open-pit blasting, with centrally located spaced charges being particularly common.

[0003] Patent application CN116697844A discloses an open-pit mine rock-penetrating blasting charging device. Paragraph 0030 of the specification describes a charging cylinder with a pressure plate at its upper part. A lifting mechanism on the cover plate drives the pressure plate to move up and down within the charging cylinder. The lifting mechanism includes a worm gear, the bottom end of which is connected to a connecting seat on the upper surface of the pressure plate. The cover plate has a through hole for the worm gear to pass through, and a worm wheel meshing with the worm gear is also provided on the cover plate. The central shaft of the worm gear is connected to a motor. A protective box is provided outside the worm gear and worm wheel, with a through hole for the worm gear to pass through and a sleeve protruding from the protective box at the through hole. The central shaft of the worm gear is rotatably connected to the protective box via a bearing. The motor drives the worm wheel to rotate, and the worm wheel meshes with the worm gear, causing the worm gear to move up and down, thus moving the pressure plate up and down. The pressure plate pushes the explosive, tray, and spacer gasbags filled in the charging cylinder into the blasting hole.

[0004] However, in practical applications, it is necessary to use a tray to fix the explosive to the bottom of the charging tube to reduce the problem of the explosive falling off the bottom of the charging tube. Since there is no locking structure between the outer wall of the tray and the inner wall of the charging tube, the tray is prone to falling off the bottom of the charging tube, which in turn causes the explosive to fall off the bottom of the charging tube.

[0005] To address these shortcomings, a hole-punching explosive charging device for open-pit mines is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an open-pit mine rock drilling and blasting charging device.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] An open-pit mine rock drilling blasting charging device includes a charging cylinder, a pressure plate that slides inside the charging cylinder, a tray placed at the lower end of the charging cylinder, and explosives placed on the upper side of the tray.

[0009] Multiple guide rods are elastically and slidably fitted on the outer wall of the lower end of the charge cartridge. The lower end of each guide rod is elastically and rotatably fitted with a U-shaped plate. An arc-shaped clamping plate is fixedly fitted between the two ends of the U-shaped plate. One side of the arc-shaped clamping plate is attached to the bottom of the tray.

[0010] Optionally, a T-shaped groove is provided on the upper side of the pressure plate, a T-shaped rod is rotatably fitted inside the T-shaped groove, a worm gear is fixedly fitted at the upper end of the T-shaped rod, and a guide plate is fixedly fitted at the upper end of the worm gear.

[0011] Optionally, the upper end of the charge cartridge is provided with a first through hole, the worm gear is located inside the first through hole, two hanging ears and two fixing blocks are fixedly fitted on the upper side of the charge cartridge, and the interior of the charge cartridge is provided with a gas inhibitor and a spacer airbag located below the gas inhibitor.

[0012] Optionally, a second through hole is provided on one side of the fixing block, and a rotating shaft is rotatably fitted between the two second through holes. A worm gear is fixedly fitted around the circumference of the rotating shaft, and the worm gear meshes with the worm. A servo motor is fixedly fitted on one side of one of the fixing blocks, and one end of the rotating shaft is fixedly fitted on the output end of the servo motor.

[0013] Optionally, the inner wall of the charging cartridge has two first guide grooves, and two guide blocks are fixedly fitted on the outer wall of the pressure plate, with one end of each guide block slidably fitted inside the first guide groove.

[0014] Optionally, the outer wall of the charge cartridge is provided with a plurality of second guide grooves and a plurality of guide holes, adjacent guide holes are connected to the second guide grooves, and the guide rod is slidably fitted inside the second guide grooves and the guide holes.

[0015] Optionally, a sliding block is fixedly fitted around the periphery of the guide rod, and a spring is fixedly fitted between one side of the sliding block and the inner wall of the second guide groove, with the spring sleeved around the periphery of the guide rod.

[0016] Optionally, a rotating rod is fixedly fitted between the two ends of the U-shaped plate, a third through hole is provided at the lower end of the guide rod, the rotating rod is located inside the third through hole, and a torsion spring is fixedly fitted between one side of the U-shaped plate and the guide rod, the torsion spring being sleeved around the circumference of the rotating rod.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] The arc-shaped clamp is designed so that one side of the arc-shaped clamp fits against the side of the tray under the action of the U-shaped plate, which reduces the problem of the tray sliding off the bottom of the charge tube during use and reduces the problem of explosives falling off the bottom of the charge tube. This makes it easier to place the explosives inside the rock perforation through the charge tube, making the explosive placement process more convenient.

[0019] The first guide groove is designed to allow the guide block to slide inside the first guide groove under the action of the pressure plate, and to guide the sliding direction of the guide block through the first guide groove, thereby reducing the problem of tilting of the guide block during sliding and improving the stability of the guide block during sliding.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0022] In the picture:

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0024] Figure 2 This is a bottom view of an embodiment of the present invention.

[0025] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of a guide rod structure according to an embodiment of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] The following components are included: a charging cartridge 100, a first through hole 101, a fixing block 102, a second through hole 103, a rotating shaft 104, a worm gear 105, a worm 106, a guide plate 107, a hanging lug 108, a second guide groove 109, a guide hole 110, a T-shaped rod 111, a pressure plate 112, a T-shaped groove 113, a first guide groove 114, a guide block 115, a gas suppressant 116, a spacer airbag 117, explosive 118, a tray 119, a guide rod 120, a sliding block 121, a spring 122, a third through hole 123, a rotating rod 124, a U-shaped plate 125, a torsion spring 126, and an arc-shaped clamping plate 127.

[0029] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Please see Figure 1-4 As shown, this embodiment provides an open-pit mine rock drilling blasting charging device, including a charging cylinder 100, a pressure plate 112 that slides inside the charging cylinder 100, a tray 119 placed at the lower end of the charging cylinder 100, and explosives 118 placed on the upper side of the tray 119.

[0032] Multiple guide rods 120 are elastically and slidably fitted on the outer side wall of the lower end of the cartridge 100. The lower end of the guide rod 120 is elastically and rotatably fitted with a U-shaped plate 125. An arc-shaped clamping plate 127 is fixedly fitted between the two ends of the U-shaped plate 125. One side of the arc-shaped clamping plate 127 is attached to the bottom of the tray 119.

[0033] Working principle:

[0034] First, rotate the U-shaped plate 125, which drives the arc-shaped clamping plate 127 to rotate. Then, place the explosive 118 at the lower end of the charging cartridge 100. Next, place the tray 119 on one side of the explosive 118. Then, release the U-shaped plate 125, which returns to its original position under the action of elasticity. One end of the U-shaped plate 125 drives the arc-shaped clamping plate 127 to be positioned on one side of the tray 119. Then, place the charging cartridge 100 inside the rock and ore perforation. Then, slide the pressure plate 112 downward. The pressure generated by the pressure plate 112 drives the explosive 118 to slide downward. The explosive 118 drives the tray 119 to slide downward. The tray 119 drives the arc-shaped clamping plate 127 to slide downward and releases the positioning of the tray 119, thus placing the explosive 118 inside the rock and ore perforation.

[0035] The arc-shaped clamp 127 is designed so that one side of the arc-shaped clamp 127 fits against one side of the tray 119 under the action of the U-shaped plate 125. This reduces the problem of the tray 119 sliding out from the lower end of the charging cartridge 100 during use, and reduces the problem of the explosive 118 falling off from the lower end of the charging cartridge 100. It also makes it easier to place the explosive 118 inside the rock perforation through the charging cartridge 100, making the process of placing the explosive 118 more convenient.

[0036] To make the sliding process of the guide block 115 on one side of the charge cartridge 100 more stable in this embodiment, the following structure is used for improvement, such as... Figure 1-4 As shown, in this embodiment, a T-shaped groove 113 is provided on the upper side of the pressure plate 112. A T-shaped rod 111 is rotatably fitted inside the T-shaped groove 113. A worm gear 106 is fixedly fitted to the upper end of the T-shaped rod 111. A guide plate 107 is fixedly fitted to the upper end of the worm gear 106. A first through hole 101 is provided on the upper end of the cartridge 100. The worm gear 106 is located inside the first through hole 101. Two hanging ears 108 and two fixing blocks 102 are fixedly fitted on the upper side of the cartridge 100. The internal structure includes a gas suppressant 116 and a spacer 117 located below the gas suppressant 116. A second through hole 103 is provided on one side of a fixing block 102. A rotating shaft 104 is rotatably fitted between the two second through holes 103. A worm gear 105 is fixedly fitted around the circumference of the rotating shaft 104, meshing with a worm 106. A servo motor is fixedly fitted on one side of one of the fixing blocks 102, and one end of the rotating shaft 104 is fixedly fitted to the output end of the servo motor. The inner side of the cartridge 100... The wall has two first guide grooves 114. Two guide blocks 115 are fixedly fitted on the outer wall of the pressure plate 112. One end of the guide block 115 is slidably fitted inside the first guide groove 114. The outer wall of the cartridge 100 has multiple second guide grooves 109 and multiple guide holes 110. Adjacent guide holes 110 are connected to the second guide grooves 109. The guide rod 120 is slidably fitted inside the second guide grooves 109 and guide holes 110. A sliding block is fixedly fitted on the periphery of the guide rod 120. 121. A spring 122 is fixedly fitted between one side of the sliding block 121 and the inner wall of the second guide groove 109. The spring 122 is sleeved on the periphery of the guide rod 120. A rotating rod 124 is fixedly fitted between the two ends of the U-shaped plate 125. A third through hole 123 is opened at the lower end of the guide rod 120. The rotating rod 124 is located inside the third through hole 123. A torsion spring 126 is fixedly fitted between one side of the U-shaped plate 125 and the guide rod 120. The torsion spring 126 is sleeved on the periphery of the rotating rod 124.

[0037] In this embodiment, the servo motor is first started. The output of the servo motor drives the worm gear 105 to rotate through the rotating shaft 104. The worm gear 105 drives the T-shaped rod 111 to rotate through the worm 106. The T-shaped rod 111 drives the pressure plate 112 to slide downward through the T-shaped groove 113. The pressure plate 112 drives the guide block 115 to slide inside the first guide groove 114. The pressure generated by the downward sliding of the pressure plate 112 drives the explosive 118 to slide downward. The explosive 118 drives the tray 119 to slide downward, and the explosive 118 is placed inside the rock perforation through the charging tube 100.

[0038] The first guide groove 114 is provided so that the guide block 115 slides inside the first guide groove 114 under the action of the pressure plate 112, and the sliding direction of the guide block 115 is guided by the first guide groove 114, which reduces the problem of tilting of the guide block 115 during sliding and improves the stability of the guide block 115 during sliding.

[0039] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An apparatus for perforating blast charges in overburden of a quarry, characterized in that Include: The cartridge (100) is slidably fitted with a pressure plate (112), the lower end of the cartridge (100) is placed with a tray (119), the upper side of the tray (119) is placed with explosives (118); A plurality of guide rods (120) are elastically and slidingly fitted on the outer wall of the lower end of the cartridge (100), the lower end of the guide rod (120) is elastically and rotationally fitted with a U-shaped plate (125), the two ends of the U-shaped plate (125) are fixedly fitted with an arc-shaped clamping plate (127), one side of the arc-shaped clamping plate (127) is attached to the bottom of the tray (119).

2. A device for drilling and blasting of rock in surface mining according to claim 1, characterized in that The upper side of the pressure plate (112) is provided with a T-shaped slot (113), the T-shaped slot (113) is rotationally fitted with a T-shaped rod (111), the upper end of the T-shaped rod (111) is fixedly fitted with a worm (106), and the upper end of the worm (106) is fixedly fitted with a guide disc (107).

3. A device for drilling and blasting of rock in surface mining according to claim 2, characterized in that The upper end of the cartridge (100) is provided with a first through hole (101), the worm (106) is located in the first through hole (101), the upper side of the cartridge (100) is fixedly fitted with two hanging ears (108) and two fixed blocks (102), and the inside of the cartridge (100) is provided with a toxic gas inhibitor (116) and a spacer air bag (117) located below the toxic gas inhibitor (116).

4. A device for drilling and blasting of rock in surface mining according to claim 3, characterized in that One side of the fixed block (102) is provided with a second through hole (103), a rotating shaft (104) is rotationally fitted between the two second through holes (103), the rotating shaft (104) is fixedly fitted with a worm wheel (105) on the circumferential side, and the worm wheel (105) is engaged with the worm (106). One side of one of the fixed blocks (102) is fixedly fitted with a servo motor, and one end of the rotating shaft (104) is fixedly fitted on the output end of the servo motor.

5. The device according to claim 1, characterized in that, The inner side wall of the cartridge (100) is provided with two first guide grooves (114), and the outer side wall of the pressure plate (112) is fixedly fitted with two guide blocks (115), one end of the guide block (115) is slidingly fitted in the first guide groove (114).

6. The device according to claim 1, characterized in that, The outer side wall of the cartridge (100) is provided with a plurality of second guide grooves (109) and a plurality of guide holes (110), adjacent guide holes (110) and second guide grooves (109) are connected, and the guide rod (120) is slidingly fitted in the second guide groove (109) and the guide hole (110).

7. A device for drilling and blasting of overburden according to claim 6, c h a r a c t e r i s e d in that The circumferential side of the guide rod (120) is fixedly fitted with a sliding block (121), and the sliding block (121) is fixedly fitted with a spring (122) between the inner side wall of the second guide groove (109) and one side. The spring (122) is sleeved on the circumferential side of the guide rod (120).

8. The device according to claim 1, characterized in that, The U-shaped plate (125) is fixedly connected between the two ends of the rotating rod (124), the lower end of the guide rod (120) is provided with a third through hole (123), the rotating rod (124) is located in the third through hole (123), and the side of the U-shaped plate (125) and the guide rod (120) are fixedly connected with a torsional spring (126), and the torsional spring (126) is sleeved on the side of the rotating rod (124).

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