Underground mining electromagnet type breaking hammer clamping plate mechanism

Abstract

The utility model discloses an underground mining electromagnet type breaking hammer clamping plate mechanism which comprises a left clamping plate and a right clamping plate which serve as clamping plates, and the left clamping plate and the right clamping plate are the same in shape and size and are arranged oppositely. And a main shaft and an oil cylinder shaft are respectively arranged between the left clamping plate and the right clamping plate on the large arm connecting side. An installation lug plate is connected to a shell of the electromagnet, an electromagnet installation hole is formed in the clamping plate at the outer end of the installation side of the breaking hammer, and a fixing bolt is connected into the installation lug plate and the electromagnet installation hole in a penetrating mode. The mounting lug plates are attached to the outer sides of the clamping plates, and the electromagnets are fixedly mounted at the outer ends of the clamping plates through the fixing bolts. Rock crushing and iron waste magnetic attraction are achieved on one rotary structure at the same time. By means of the device, potential safety hazards caused by manual picking operation of the iron wastes can be eliminated; and the iron waste separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of underground mining machinery and equipment, and specifically to a clamping mechanism for an underground mining breaker. Background Technology

[0002] In the process of metal mining, ore transportation and crushing are indispensable links. After the rock is mined, it is first transported to the screen of the ore pass crushing station using loading equipment. At the ore pass crushing station, under the control of a fixed crusher, the breaker hammer crushes the rock to the size that can pass through the screen, and the screened rock falls into the ore pass system.

[0003] The rocks obtained from mining contain scrap iron materials used in support operations, such as discarded anchor mesh and anchor bolts. During rock crushing operations with a hydraulic breaker, this scrap iron, mixed in or embedded within the rock, separates from the ore and falls onto a screen. To prevent this scrap iron from entering the ore pass system and damaging equipment such as conveyor belts, thus increasing maintenance costs, it needs to be separated.

[0004] Currently, in underground rock chute crushing operations in metal mines, the handling of iron scrap mainly relies on manual labor. The common practice is for workers to step onto the chute screen and manually pick up the iron scrap. This method has the following main problems: First, safety hazards: When workers step on the screen to pick up iron scrap, they are prone to slipping or even falling into the chute. Second, low efficiency: Manually picking up iron scrap is labor-intensive, inefficient, and affects the progress of the crushing operation. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a clamping mechanism for an electromagnet-type breaker hammer used in underground mining, so as to realize the mechanized sorting of iron waste such as waste anchor mesh and anchor rod in stone crushing operations, and to realize both rock crushing and magnetic attraction of iron waste using a single breaker boom.

[0006] The technical solution of this utility model is as follows:

[0007] A clamping mechanism for an electromagnet-type hydraulic breaker used in underground mining includes a left clamping plate and a right clamping plate, which are identical in shape and size and are positioned opposite each other. One side of the clamping plate serves as the boom connection side of the breaker, and the other side serves as the breaker mounting side. A main shaft and a hydraulic cylinder shaft are respectively installed between the left and right clamping plates on the boom connection side. The clamping mechanism also includes an electromagnet. The electromagnet is connected to a current on / off switch via a wire. A mounting lug is connected to the outer shell of the electromagnet. An electromagnet mounting hole is provided on the clamping plate at the outer end of the breaker mounting side, and fixing bolts are inserted into the mounting lug and the corresponding electromagnet mounting hole. The mounting lug fits against the outer side of the clamping plate, and the electromagnet is fastened to the outer end of the clamping plate by the fixing bolts.

[0008] Preferably, the clamping plate has a bent portion in the middle; one side of the bent portion is the boom connection side of the crusher, and the other side is the hammer mounting side; the distance between the left and right clamping plates on the boom connection side is greater than the distance between the left and right clamping plates on the hammer mounting side.

[0009] Preferably, a reinforcing rib is installed between the main shaft and the cylinder shaft; the reinforcing rib is a steel plate welded to the outside of the clamping plate, and the two ends of the steel plate are respectively connected to the main shaft and the cylinder shaft.

[0010] Preferably, the clamping plate on the mounting side of the hydraulic breaker has an inspection window.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model features a main shaft connected to the crusher's boom. A hydraulic cylinder for tilting the crusher pushes the crusher to rotate around the main shaft, performing ore crushing and impact operations at an angle perpendicular to the ore chute screen. After rotating a certain angle, the electromagnet rotates to face the ore chute screen. By switching the electromagnet on and off, the magnetic attraction and release of iron scrap are achieved. Both rock crushing and magnetic attraction of iron scrap are simultaneously achieved within a single rotating structure. This utility model eliminates the safety hazards of manual iron scrap collection, reduces labor intensity, and improves the efficiency of iron scrap separation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention, in which the hydraulic breaker is omitted.

[0014] Figure 2 This is a front view structural diagram of an embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of the magnetic attraction operation state according to an embodiment of the present invention.

[0016] Figure 4This is a schematic diagram of the crushing operation state according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Hydraulic cylinder shaft; 2. Main shaft; 3. Left clamping plate; 4. Bending section; 5. Inspection window; 6. Breaker bolt; 7. Electromagnet; 8. Right clamping plate; 9. Mounting ear plate; 10. Fixing bolt; 11. Reinforcing rib plate; 12. Breaker; 13. Breaker boom. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0019] Combination Figure 1 and Figure 2 The embodiments of this utility model include clamping plates, which include a left clamping plate 3 and a right clamping plate 8. The left clamping plate 3 and the right clamping plate 8 are identical in shape and size and are arranged opposite each other. The middle part of the clamping plate is a bent part 4. The part of the clamping plate located on one side of the bent part 4 serves as the boom connection side of the crusher, and the part on the other side serves as the mounting side of the breaker hammer 12. The distance between the left clamping plate 3 and the right clamping plate 8 on the boom connection side is greater than the distance between the left clamping plate 3 and the right clamping plate 8 on the breaker hammer 12 mounting side. The purpose of bending the clamping plate is to match and be compatible with the breaker hammer 12 and the crusher boom 13, so that the breaker hammer 12 and the crusher boom 13 have sufficient installation space. A main shaft 2 for connecting the crusher boom 13 and a cylinder shaft 1 for connecting the hydraulic drive cylinder on the crusher boom 13 are respectively installed between the left clamping plate 3 and the right clamping plate 8 on the boom connection side. The extension and retraction of the breaker hammer tilting cylinder pushes the clamping plate mechanism to tilt around the main shaft 2.

[0020] Furthermore, since the main impact load bearing positions of the hydraulic breaker 12 are the mounting positions of the main shaft 2 and the hydraulic cylinder shaft 1, a reinforcing rib plate 11 is installed between the main shaft 2 and the hydraulic cylinder shaft 1 to better ensure the overall structural strength of the clamping plate. The reinforcing rib plate 11 is a high-strength steel plate welded to the outside of the clamping plate, and its two ends are respectively connected to the main shaft 2 and the hydraulic cylinder shaft 1.

[0021] The hydraulic breaker 12 is installed between the left clamping plate 3 and the right clamping plate 8 on the installation side of the hydraulic breaker 12, and a number of hydraulic breaker bolts 6 passing through the left clamping plate 3 and the right clamping plate 8 on this side fasten the hydraulic breaker 12 between the left clamping plate 3 and the right clamping plate 8 on this side.

[0022] Furthermore, to facilitate the inspection and maintenance of the hydraulic breaker 12 during use, the clamping plate on the mounting side of the hydraulic breaker 12 is provided with an inspection window 5 (the inspection window 5 is cut out in the middle of the clamping plate when feeding material).

[0023] This embodiment also includes an electromagnet 7 (preferably a DC electromagnet). The electromagnet 7 is connected to a current on / off switch via a wire. The current on / off switch is generally located in the crusher cab, and the operator in the crusher cab controls the electromagnet 7 to turn on and off the power by controlling the switch.

[0024] The electromagnet 7 has a mounting lug 9 connected (usually welded) to its outer casing. The breaker hammer 12 has a mounting side outer end ( Figure 1 , Figure 2 An electromagnet mounting hole is provided on the clamp plate at the lower end of the clamp plate, and a fixing bolt 10 passes through the mounting ear plate 9 and the corresponding electromagnet mounting hole. The mounting ear plate 9 is attached to the outside of the clamp plate, and the electromagnet 7 is fastened to the outer end of the clamp plate by the fixing bolt 10.

[0025] In specific manufacturing, the clamping plate is made of 14mm high-strength steel plate by bending. The breaker bolt 6 and the fixing bolt 10 are both made of grade 12.9 bolts.

[0026] like Figure 3 As shown, during underground operations in a metal mine, the clamping mechanism of this underground mining electromagnet-type breaker is rotated by a hydraulic cylinder, with one end of the electromagnet 7 facing the chute screen. The operator in the cab draws in iron scrap by connecting the current to the electromagnet 7. The breaker boom 13 rotates a certain angle, so that one end of the electromagnet 7 faces the iron scrap pile. The operator in the cab releases the iron scrap by disconnecting the current to the electromagnet 7.

[0027] like Figure 4 As shown, during underground operations in a metal mine, the clamping mechanism of this underground mining electromagnet-type breaker is flipped by a hydraulic cylinder, making the breaker 12 perpendicular to the ore pass screen for crushing operations. At this time, the electromagnet 7 is flipped to one side, without interfering with the normal crushing operation of the breaker 12.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. All equivalent substitutions or improvements made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A clamping mechanism for an electromagnet-type breaker hammer used in underground mining, comprising a left clamping plate (3) and a right clamping plate (8) serving as clamping plates, wherein the left clamping plate (3) and the right clamping plate (8) are identical in shape and size and are arranged facing each other, one side of the clamping plate serves as the boom connection side of the breaker, and the other side serves as the mounting side of the breaker hammer (12); wherein a main shaft (2) and a hydraulic cylinder shaft (1) are respectively installed between the left clamping plate (3) and the right clamping plate (8) on the boom connection side, characterized in that: The clamping mechanism also includes an electromagnet (7); the electromagnet (7) is connected to a current switching switch via a wire; a mounting ear plate (9) is connected to the outer shell of the electromagnet (7); an electromagnet mounting hole is provided on the clamping plate at the outer end of the mounting side of the breaker hammer (12), and a fixing bolt (10) passes through the mounting ear plate (9) and the corresponding electromagnet mounting hole; the mounting ear plate (9) fits against the outer side of the clamping plate, and the electromagnet (7) is fastened to the outer end of the clamping plate by the fixing bolt (10).

2. The electromagnetic mine-type breaking hammer clamp plate mechanism downhole according to claim 1, characterized in that: The clamping plate has a bent portion (4) in the middle; one side of the bent portion (4) is the boom connection side of the crusher, and the other side is the installation side of the breaker hammer (12); the distance between the left clamping plate (3) and the right clamping plate (8) on the boom connection side is greater than the distance between the left clamping plate (3) and the right clamping plate (8) on the breaker hammer (12) installation side.

3. The electromagnetic mine-type breaking hammer clamp plate mechanism according to claim 1 or 2, characterized in that: A reinforcing rib plate (11) is installed between the main shaft (2) and the cylinder shaft (1); the reinforcing rib plate (11) is a steel plate welded to the outside of the clamping plate, and the two ends of the steel plate are respectively connected to the main shaft (2) and the cylinder shaft (1).

4. The electromagnetic mine-type breaking hammer clamp plate mechanism according to claim 1 or 2, characterized in that: The clamping plate on the mounting side of the hydraulic breaker (12) is provided with an inspection window (5).

5. The electromagnetic mine-type breaking hammer clamp plate mechanism of claim 3, wherein: The clamping plate on the mounting side of the hydraulic breaker (12) is provided with an inspection window (5).

Images