Blasting equipment for rock under mine
By designing detachable expansion and hoisting components, the problem of fixing the outer diameter of the hydraulic splitting rod was solved, enabling multi-directional splitting and precise insertion, thus improving the applicability and ease of operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-24
AI Technical Summary
The fixed outer diameter of existing hydraulic splitting rods results in poor applicability and makes them difficult to remove from rock crevices.
The design incorporates detachable expansion and lifting components, including triangular bars and lifting assemblies, enabling multi-directional splitting and precise insertion by adjusting the outer diameter and insertion depth of the bar, combined with a multi-directional splitting handle and lifting ring locking.
It enables flexible adjustment of the outer diameter of the splitting rod to adapt to different rock sizes and prevents the splitting rod from falling into the gap, thus simplifying the operation process.
Smart Images
Figure CN224034512U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of rock blasting, and more specifically, to a blasting device for underground rocks. Background Technique
[0002] In underground rock blasting operations, mechanical force generated by a hydraulic splitting rod is usually used to split rocks. Based on a hydraulic power station outputting high-pressure hydraulic oil to the splitting rod, multiple plungers inside are pushed to extend outwards, forming a wedge force inside the rock, and using the characteristic of low tensile strength of the rock to achieve the purpose of static blasting. The hydraulic splitting rod has become an ideal alternative to traditional blasting equipment.
[0003] In use, the outer diameter of the current splitting rod for splitting and blasting is fixed. Since the outer diameter of the rod body cannot be changed, when dealing with large rock holes, a larger splitting rod needs to be replaced, resulting in poor applicability of the splitting rod. And when in use, since the gap after the rock is split will become larger, it is easy to cause the problem that the splitting rod falls into the gap and is difficult to take out.
[0004] In view of this, we propose a blasting device for underground rocks. Utility Model Content
[0005] 1. Technical Problems to be Solved
[0006] The purpose of this application is to provide a blasting device for underground rocks, which solves the technical problems in the above background technique, realizes the technical effect of facilitating the adjustment of the outer diameter of the splitting rod, splitting the rock in multiple directions, and at the same time avoiding the splitting rod falling into the gap.
[0007] 2. Technical Solutions
[0008] The technical solution of this application provides a blasting device for underground rocks, including a splitting rod. The splitting rod includes a rod body, and a diameter-expanding component for increasing the outer diameter of the rod body is detachably installed on the rod body. The diameter-expanding component includes a triangular prism bar. A hoisting component is slidably inserted on the rod body. The hoisting component includes a handle, and the handle has a "one" shape and an "X" shape;
[0009] The outer diameter of the rod body is adjusted by disassembling and assembling the triangular prism bar, and the depth of the rod body inserted into the rock hole is adjusted through the hoisting component. The splitting rod is supported on the rock by the handle in the "X" shape.
[0010] As an optional solution of the technical solution of this application document, the rod body is axially symmetrically provided with receiving holes. The handle includes a main handle and a sub-handle. The sub-handle is rotationally connected to the main handle through the cooperation of a shaft rod and a bearing. The main handle is symmetrically fixed with suspension rods adapted to the receiving holes. A stepped hole is provided on one side of the rod body, and a countersunk bolt that abuts against the suspension rod is threadedly connected in the stepped hole.
[0011] As an optional solution to the technical solution of this application, the splitting rod further includes a hydraulic jack, and a slot adapted to the triangular strip is provided on the side of the rod away from the hydraulic jack. A filler plate is detachably installed in the slot, and the outer surface of the filler plate is an arc surface structure.
[0012] Both the triangular strip and the sealant plate have stepped holes with countersunk bolts at one end.
[0013] As an optional solution to the technical solution in this application, the boom is provided with multiple positioning grooves corresponding to the countersunk bolts.
[0014] As an optional solution to the technical solution in this application, both ends of the main handle are rotatably connected to lifting rings;
[0015] The lifting ring includes symmetrically arranged locking rods, and the main handle has locking holes at both ends that are adapted to the locking rods.
[0016] As an optional solution to the technical solution of this application, the width of the lifting ring is adapted to that of the secondary handle, and the secondary handle is secured to the main handle via the lifting ring.
[0017] 3. Beneficial effects
[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0019] This application utilizes the relative position design of the triangular bar and the hydraulic jack to generate a shearing force intersecting with the predetermined direction when the hydraulic jack extends, achieving multi-directional splitting and breaking through the limitations of traditional unidirectional splitting. The insertion depth is precisely controlled by the sliding adjustment of the lifting rod in the storage hole, combined with the fixing of the countersunk bolt positioning groove, to adapt to different depth requirements. The "X" shaped handle is supported on the rock surface to prevent the splitting rod from falling into the crack during multi-directional splitting. The "I" and "X" shapes of the handle are achieved by rotating the secondary handle, supplemented by the locking of the lifting ring, simplifying the operation process. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a blasting device for underground rock disclosed in a preferred embodiment of this application;
[0021] Figure 2 This is a schematic diagram of the triangular strip installation state of a blasting device for underground rock disclosed in a preferred embodiment of this application;
[0022] Figure 3 This application discloses a preferred embodiment of a blasting device for underground rock. Figure 2 Top view of the structure;
[0023] Figure 4 This is a schematic diagram of the handle and boom structure of a blasting device for underground rock disclosed in a preferred embodiment of this application;
[0024] Figure 5 This is a schematic diagram of the explosion structure of a blasting device for underground rock disclosed in a preferred embodiment of this application;
[0025] Figure 6 This is a schematic diagram of a sluice plate structure for a blasting device for underground rock, as disclosed in a preferred embodiment of this application.
[0026] Explanation of the numbers in the diagram: 10, splitting rod; 11, rod body; 111, storage hole; 112, stepped hole; 113, slot; 12, hydraulic jack;
[0027] 20. Lifting assembly; 21. Lifting rod; 211. Positioning groove; 22. Main handle; 221. Locking hole; 23. Secondary handle; 231. Shaft; 24. Lifting ring; 241. Locking rod;
[0028] 30. Diameter expansion assembly; 31. Triangular strip; 32. Joint sealant. Detailed Implementation
[0029] The present application will be further described in detail below with reference to the accompanying drawings.
[0030] like Figures 1-6 As shown, a blasting device for underground rock includes a rock splitting rod 10, which comprises a rod body 11. The rock splitting rod 10 utilizes the low tensile strength of rock and uses high-pressure oil as its energy source. The ultra-high-pressure oil output from a hydraulic power station is mechanically amplified by a booster, driving the cylinder inside the rock splitting rod 10 to generate a huge thrust. This pushes the hydraulic jack 12 within the rock splitting rod 10 outwards to split the rock. The hydraulic pressure instantly reaches ultra-high pressure, achieving a splitting force of several thousand tons, splitting the hard rock from within and causing the object to split in a predetermined direction, achieving the purpose of static blasting and excavation. A detachable expansion assembly 30 is installed on the rod body 11 to increase its outer diameter, thereby increasing the rock splitting rod's... 10 is suitable for large-diameter rocks, and the diameter expansion component 30 includes a triangular slat 31, wherein the protruding edge of the triangular slat 31 is positioned on the opposite side of the hydraulic jack 12. When the hydraulic jack 12 extends, a shearing force intersecting a predetermined direction can be formed from the inside of the rock through the triangular slat 31, thereby achieving the purpose of multi-directional splitting of the rock while adjusting the outer diameter. A lifting component 20 is slidably inserted on the rod body 11. The lifting component 20 includes a handle, which has a "I" shape and an "X" shape. When the handle is in the "I" shape, it is convenient for the blaster to hold and operate. After the rod body 11 is inserted into the rock hole, by switching the handle to the "X" shape, the handle is supported on the rock (e.g., ...). Figure 4 (as shown);
[0031] The outer diameter of the rod 11 is adjusted by disassembling and assembling the triangular bar 31, and the distance between the rod 11 and the handle is adjusted by sliding the hoisting component 20. Finally, the depth of the rod 11 inserted into the rock hole is adjusted. The splitting rod 10 is supported on the rock under the mine by the "X" shaped handle, which avoids the problem of the splitting rod 10 falling into the gap and being difficult to remove during multi-directional splitting.
[0032] like Figure 3 , Figure 4 As shown, the handle includes a main handle 22 and a secondary handle 23, which are symmetrically opened in the axial direction of the rod body 11 through the storage holes 111. The secondary handle 23 is rotatably connected to the main handle 22 through the cooperation of the shaft 231 and the bearing, so as to facilitate the switching of the handle shape. When the main handle 22 and the secondary handle 23 overlap, the handle is in the shape of "I". When the secondary handle 23 is rotated to cross the main handle 22, it is in the shape of "X". The main handle 22 is symmetrically fixed with a lifting rod 21 that is adapted to the storage hole 111. The lifting depth of the rod body 11 can be adjusted by sliding the lifting rod 21 in the storage hole 111. Furthermore, a stepped hole 112 is opened on one side of the rod body 11. The stepped hole 112 is threaded with a countersunk bolt that abuts against the lifting rod 21. The lifting rod 21 can be adjusted or fixed to the rod body 11 by rotating the countersunk bolt.
[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, the splitting rod 10 also includes a hydraulic jack 12. The rod body 11 has a slot 113 adapted to the triangular strip 31 on the side away from the hydraulic jack 12. The slot 113 is detachably fitted with a caulking plate 32. The outer surface of the caulking plate 32 is an arc structure. The arc surface of the caulking plate 32 is adapted to the rod body 11. When the caulking plate 32 is inserted into the rod body 11, it can seal the slot 113 to prevent stones from getting stuck in the slot 113 when the triangular strip 31 is not in use.
[0034] Meanwhile, stepped holes 112 with countersunk bolts are opened at one end of the triangular strip 31 and the sealant plate 32. The countersunk bolts abut against the rod body 11 so that the triangular strip 31 and the sealant plate 32 can be fixed to the rod body 11 by means of the countersunk bolts.
[0035] like Figure 4 As shown, the rod 21 has multiple positioning grooves 211 corresponding to the countersunk bolts. After adjusting the rod 21, the countersunk bolts are screwed into the corresponding positioning grooves 211 to improve the fixing reliability between the rod 21 and the rod body 11.
[0036] like Figure 2As shown, both ends of the main handle 22 are rotatably connected to lifting rings 24. The hooks at both ends of the lifting rope are hung on the lifting rings 24, and the hook of the single-arm crane is hung on the lifting rope, so that the splitting rod 10 can be lifted into the rock hole by the single-arm crane.
[0037] The lifting ring 24 includes symmetrically arranged locking rods 241, and the main handle 22 has locking holes 221 at both ends that are adapted to the locking rods 241. The locking rods 241 are rotatably disposed in the locking holes 221.
[0038] like Figure 2 As shown, when the main handle 22 and the secondary handle 23 are in the overlapping state, the lifting ring 24 rotates around the locking rod 241 as the fulcrum. Since the width of the lifting ring 24 is adapted to the width of the secondary handle 23, the lifting ring 24 rotates to the top of the main handle 22, and the secondary handle 23 is locked onto the main handle 22 by the lifting ring 24, so as to prevent the secondary handle 23 from rotating when the handle is held.
[0039] Working principle: Loosen the countersunk bolts and adjust the depth of the rod 21 inserted into the receiving hole 111 to adjust the insertion depth of the rod 11. Then rotate the auxiliary handle 23 to coincide with the main handle 22, rotate the lifting ring 24 to lock the auxiliary handle 23, and then hang the hooks at both ends of the lifting rope on the lifting ring 24. Hang the hook of the single-arm crane on the lifting rope so that the splitting rod 10 can be lifted into the rock hole by the single-arm crane.
[0040] Then, after flipping the lifting ring 24 downwards, rotate the secondary handle 23 and make it support the rock in an X-shape with the main handle 22. The ultra-high pressure oil output by the hydraulic power station is mechanically amplified by the booster and drives the oil cylinder in the splitting rod 10 to generate a huge thrust, pushing the hydraulic top 12 in the splitting rod 10 to extend outwards and split the rock.
[0041] When multi-directional expansion is required, remove the sealant 32 from the slot 113, then insert the triangular strip 31 into the slot 113, and repeat the above steps.
Claims
1. A blasting device for underground rock, comprising a rock splitting rod (10), characterized in that: The splitting bar (10) includes a bar body (11), and a diameter-expanding component (30) for increasing the outer diameter of the bar body (11) is detachably installed on the bar body (11). The diameter-expanding component (30) includes a triangular prism bar (31). A hoisting component (20) is slidably inserted on the bar body (11). The hoisting component (20) includes a handle, and the handle has the shapes of "one" and "X". The outer diameter of the bar body (11) is adjusted by disassembling and assembling the triangular prism bar (31), and the depth of the bar body (11) inserted into the rock hole is adjusted by the hoisting component (20). The splitting bar (10) is supported on the rock by the handle in the "X" shape.
2. The blasting equipment for underground rock according to claim 1, characterized in that: The bar body (11) is axially symmetrically provided with a storage hole (111). The handle includes a main handle (22) and a sub-handle (23). The sub-handle (23) is rotatably connected to the main handle (22) through the cooperation of a shaft rod (231) and a bearing. The main handle (22) is symmetrically fixed with hanging rods (21) adapted to the storage hole (111). A stepped hole (112) is provided on one side of the bar body (11), and a countersunk bolt that abuts against the hanging rod (21) is threadedly connected in the stepped hole (112).
3. The blasting equipment for underground rock according to claim 2, characterized in that: The splitting bar (10) further includes a hydraulic jack (12). A card slot (113) adapted to the triangular prism bar (31) is provided on one side of the bar body (11) away from the hydraulic jack (12). A caulking plate (32) is detachably installed in the card slot (113), and the outer surface of the caulking plate (32) is an arc surface structure. Step holes (112) with countersunk bolts are provided at one ends of the triangular prism bar (31) and the caulking plate (32).
4. A blasting device for underground rock according to claim 2, characterized in that: A plurality of positioning grooves (211) corresponding to the countersunk bolts are provided on the hanging rod (21).
5. A blasting device for underground rock according to claim 2, characterized in that: Hoisting rings (24) are rotatably connected to both ends of the main handle (22). The hoisting ring (24) includes symmetrically arranged clamping rods (241), and clamping holes (221) adapted to the clamping rods (241) are provided at both ends of the main handle (22).
6. A blasting device for underground rock according to claim 5, characterized in that: The width of the hoisting ring (24) is adapted to that of the sub-handle (23), and the sub-handle (23) is clamped on the main handle (22) through the hoisting ring (24).