Through hole crushing device for vertical blast hole

Abstract

The utility model discloses a through hole crushing device for a vertical blast hole. The through hole crushing device comprises a hammer head, a balancing weight, a drop hammer sheath and a hammering rod, the hammer head is in a cross cone shape; the balancing weight is cylindrical, and the lower end of the balancing weight is detachably connected with the hammer head; the lower end of the drop hammer sheath is detachably connected with the upper end of the balancing weight; and the hammering rod is arranged in the drop hammer sheath in a sliding manner. According to the utility model, a combined type crushing principle, namely a free falling body and secondary hammering mode, is adopted, so that the crushing efficiency is obviously improved, and the energy consumption is reduced at the same time; the device is ingenious in design, easy and convenient to operate and capable of rapidly dealing with crushing operation of various hard rock stratums, and the working efficiency of a construction site is greatly improved. And in addition, the manufacturing cost is relatively low, maintenance is easy, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining technology field especially vertical blast hole's through hole breaking device. BACKGROUND

[0002] In traditional mining or construction, the drilling and blasting of vertical blast hole is a common and key technical means. However, in actual operation, due to the complexity of the working environment and personnel equipment, the blast hole is prone to blockage, which seriously affects the construction progress and efficiency. For example: 1. After the penetration of the roller bit machine is completed, the rock blocks in the part of the hole wall joint fissure development during the lifting of the drill rod fall and block the hole; 2. During the process of personnel entering the penetration area to sample or measure the hole depth after the penetration is completed, the peripheral stones outside the hole are accidentally pushed into the hole, causing the hole to be blocked. The existing solutions often rely on manual cleaning or inefficient mechanical assistance, which has safety hazards, high labor intensity and low efficiency. Especially in the deep hole drilling environment, these problems are more prominent, which increases the additional cost burden. SUMMARY

[0003] The utility model aims at overcoming the insufficient prior art, providing vertical blast hole's through hole breaking device, simple operation can respond to the breaking of various hard rock layers, greatly improve the work efficiency of the construction site.

[0004] The utility model adopts the technical scheme of:

[0005] A through hole breaking device for vertical blast hole comprises a hammer head, a counterweight, a drop hammer sheath and a hammering rod.

[0006] The hammer head is in the shape of a cross-shaped cone. The counterweight is in the shape of a cylinder. The lower end of the counterweight is detachably connected to the hammer head. The drop hammer sheath is in the shape of a cylinder with an outer diameter consistent with that of the counterweight. The lower end of the drop hammer sheath is detachably connected to the upper end of the counterweight. A through hole is provided at the center of the upper end of the drop hammer sheath. The hammering rod is slidably arranged in the drop hammer sheath. The hammering rod is in a hollow structure. The upper end of the hammering rod passes through the through hole at the upper end of the drop hammer sheath and is provided with a rope passing hole at the end. A hammer disc matching the inner diameter of the drop hammer sheath is provided at the lower end of the hammering rod.

[0007] Specifically, the upper end of the hammering rod is further connected to an extended anti-dropping rod.

[0008] Specifically, the detachable structure between the counterweight, the hammer head and the drop hammer sheath is a threaded connection structure.

[0009] More specifically, a connecting step is provided at the center of the upper end of the hammer head. External threads are provided around the connecting step. An internal thread connecting part matching the connecting step is provided on the inner wall of the lower end of the counterweight. External threads are provided around the upper end of the counterweight and are threadedly connected to the inner wall of the lower end of the drop hammer sheath.

[0010] Specifically, the hammer head is made of an alloy material with a surface hardness of HRC 60 or above.

[0011] Due to the technical scheme as described above, the utility model has the following advantages:

[0012] The utility model adopts the composite crushing principle, that is, the free fall and secondary hammering mode, which significantly improves the crushing efficiency and reduces the energy consumption; the design is ingenious, the operation is simple, various hard rock layers can be quickly crushed, and the working efficiency of the construction site is greatly improved. In addition, the manufacturing cost is relatively low, easy to maintain, and widely applicable. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the sectional view of the utility model.

[0014] Figure 2 is the schematic view of the hammer head of the utility model.

[0015] Figure 3 is the sectional view of the counterweight block of the utility model.

[0016] Figure 4 is the schematic view of the drop hammer sheath and hammering rod of the utility model.

[0017] In the figure: 1-hammer head, 2-counterweight block, 3-drop hammer sheath, 4-hammering rod, 5-anti-drop rod. DETAILED DESCRIPTION

[0018] The utility model will be further explained and described below in combination with the drawings and examples, and the protection scope of the utility model cannot be limited by this, and the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0019] In combination with the drawings Figures 1-4 The vertical hole through-hole crushing device shown in the figure includes a hammer head 1, a counterweight block 2, a drop hammer sheath 3, and a hammering rod 4.

[0020] The hammer head 1 is in cross-cone type, the hammer head 1 is provided with a connecting step in the center of the upper end, the connecting step is provided with external threads in the circumference, and the hammer head 1 is made of alloy material with surface hardness reaching HRC60 or more.The counterweight 2 is in cylindrical body, the counterweight 2 is provided with external threads in the circumference of the upper end, and the counterweight 2 is provided with an internal thread connecting part matched with the connecting step on the inner wall of the lower end;the drop hammer sheath 3 is in cylindrical structure with the same outer diameter as the counterweight 2, the drop hammer sheath 3 is threadedly connected with the upper end of the counterweight 2, and the drop hammer sheath 3 is provided with a through hole in the center of the upper end;the hammering rod 4 is slidably arranged in the drop hammer sheath 3, the hammering rod 4 is in hollow structure, the hammering rod 4 is provided with a rope penetrating hole in the end portion penetrating through the through hole in the upper end of the drop hammer sheath 3, and the hammering rod 4 is provided with a hammer disc matched with the inner diameter of the drop hammer sheath 3 in the lower end; and the hammering rod 4 is further connected with the lengthened anti-falling rod 5 in the upper end.

[0021] The through-hole breaking device of the vertical borehole in the utility model, in working, firstly utilizes the rope to penetrate into the rope penetrating hole in the upper end of the hammering rod 4 and is tightly tied, ensures that the device can keep stable in the operation process, then accurately aligns the through-hole breaking device with the preset hole, after the operator and the guardian confirm, loosens the rope and lets it naturally droop into the hole under the action of gravity, the hammer head 1 firstly touches the target object, transmits the initial force, the hammer head 1 together with the counterweight 2 acts on the blockage, and forms the initial breaking force field; after the first collision, the second hammering rod 4 joins the action, directly impacts the counterweight 2 under stress, generates the second stronger energy release in a twinkling, the counterweight 2 as the intermediary, the recoil force received by the counterweight 2 is converted into the kinetic energy upward again, carries out the second round of accurate hammering to the same target, so that the force superposition amplification is realized, and the breaking efficiency is greatly enhanced.

[0022] The part not described in the utility model is prior art.

[0023] In order to disclose the invention purpose of the utility model, the embodiments selected in the text are currently considered to be appropriate, but it should be understood that the utility model aims to include all changes and improvements of all embodiments belonging to the concept and the scope of the utility model.

Claims

1. A through-hole fracturing device for a vertical borehole, characterized by, The hammer head, the weight block, the drop hammer sheath and the hammering rod are included. The hammer head is in the shape of a cross cone, the weight block is in the shape of a cylinder, the lower end of the weight block is detachably connected with the hammer head, the drop hammer sheath is in the shape of a cylinder with the same outer diameter as the weight block, the lower end of the drop hammer sheath is detachably connected with the upper end of the weight block, a through hole is arranged at the center of the upper end of the drop hammer sheath, the hammering rod is slidably arranged in the drop hammer sheath, the hammering rod is in a hollow structure, the upper end of the hammering rod passes through the through hole of the upper end of the drop hammer sheath and is provided with a rope passing hole at the end, and the lower end of the hammering rod is provided with a hammer disc matched with the inner diameter of the drop hammer sheath.

2. The through-hole perforating device of claim 1, wherein: The upper end of the hammering rod is further connected with an extended anti-dropping rod.

3. The through-hole perforating device of claim 1, wherein: The detachable structure between the weight block, the hammer head and the drop hammer sheath is a threaded connection structure.

4. The through-hole perforating device of claim 3, wherein: The upper end of the hammer head is provided with a connecting step at the center, the connecting step is provided with external threads in the circumference, the inner wall of the lower end of the weight block is provided with an internal thread connecting part matched with the connecting step, and the upper end of the weight block is provided with external threads matched with the threaded connection of the inner wall of the lower end of the drop hammer sheath.

5. The through-hole perforating device of claim 1, wherein: The hammer head is made of an alloy material with a surface hardness of HRC60 or above.

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