Auxiliary crushing device of exposed ore mining equipment

Abstract

The utility model provides an auxiliary crushing device of exposed ore mining equipment, which comprises a single-tooth roller crusher and a crushing claw mechanism, and the crushing claw mechanism is rotatably arranged at the end part of a crawler walking device through a swinging oil cylinder and is used for impacting, crushing, cutting and rolling large mineral aggregates; the single-tooth-roller crusher is installed on a mineral aggregate continuous conveying channel of the exposed ore mining equipment in a crossing mode and used for extruding and crushing continuously conveyed mineral aggregates. The auxiliary crushing device of the exposed ore mining equipment can actively crush mineral aggregates continuously mined in a strip mine in advance, prevents large mineral aggregates from blocking a subsequent conveying system, and improves the mineral aggregate collecting capacity and efficiency.

Description

Technical Field

[0001] The utility model relates to the field of open-pit mining machines, in particular to an auxiliary crushing device for open-pit mining equipment. Background Art

[0002] At present, the drum coal mining machine in the open-pit coal mine is moving forward. The cutting head in the working mechanism continuously breaks the rock, and then the coal material cut off by the cutting head is shoveled onto the shovel board using the coal mine star wheel shovel board. The crushed coal material is scraped onto the conveyor in the middle chute of the shovel board through the star wheel component on the shovel board, so as to transport the coal material out. The coal mine star wheel shovel board is used to clear the mud and stone obstacles in the forward section of the star wheel, so that the drum coal mining machine can move forward stably, but the traditional shovel board can only rely on two star wheels to collect coal, and the collection capacity is low.

[0003] In order to improve the collection capacity and collection efficiency, the utility model patent with the authorization announcement number CN220267701U discloses a coal mine star wheel shovel, including a base, a shroud fixedly connected to one side of the top of the base, a star wheel body provided at the top of the shroud, a mounting plate fixedly connected to one end of the shroud, a mounting box fixedly connected to one side of the mounting plate, a first motor fixedly connected to the inside of the mounting box, a driving gear fixedly connected to the output shaft of the first motor, a driven gear bonded to the surface of the driving gear, a first roller fixedly connected to one side of the driven gear, the coal mine star wheel shovel can drive the driving gear to rotate through the first motor, the driving gear can cooperate with the driven gear to rotate the first roller, the rotation of the first roller can drive the rolling teeth to rotate, the coal slag in front of the star wheel body can be driven inward, and can cooperate with the star wheel body to increase the efficiency of the star wheel body in conveying coal slag. However, the coal mine star wheel shovel does not have the ability to actively crush coal blocks, and has the defect of being unable to collect large pieces of coal blocks. Utility Model Content

[0004] In order to realize the pre-active crushing of the mineral materials continuously mined in the open-pit mine, prevent the large mineral materials from blocking the subsequent transmission system, and improve the mineral collection capacity and efficiency, the technical scheme adopted by the utility model is: an auxiliary crushing device for open-pit mining equipment, including a single-tooth roller crusher and a crushing claw mechanism, the crushing claw mechanism can be rotatably installed at the end of the crawler walking device through a swing cylinder, and is used for impact crushing and cutting the large mineral materials that roll down;

[0005] The single-tooth roller crusher is installed across the continuous transportation channel of mineral materials in open-pit mining equipment and is used for extruding and crushing the continuously transported mineral materials.

[0006] Based on the above, in order to be able to crush the mineral materials at both the front and rear ends, a set of the crushing claw mechanism is rotatably installed at the front and rear ends of the crawler walking device.

[0007] Based on the above, in order to achieve non-turning round-trip collection of the mined ore after cutting, the continuous ore transportation channel of the open-pit mining equipment includes a pair of star-wheel scraper plates and a pair of scraper conveyors. The star-wheel scraper plates are respectively arranged at the front and rear ends of the crawler traveling device, the scraper conveyors are arranged on the crawler traveling device and are connected to the discharge ends of the star-wheel scraper plates, the crushing claw mechanism is located above the star-wheel scraper plates, and the single-tooth roll crusher is horizontally arranged across the scraper conveyors.

[0008] Based on the above, the crushing claw mechanism includes a mounting seat, a boom hinged to the mounting seat, a forearm hinged to the boom, a crushing claw hinged to the forearm, and a plurality of driving oil cylinders respectively used to drive the boom, forearm and crushing claw to rotate. An articulated seat hinged to the mounting seat is arranged on the crawler traveling device.

[0009] Based on the above, in order to avoid damage to the rolling ore, protective covers for protecting the driving oil cylinders are also arranged on the boom and the forearm.

[0010] Based on the above, the single-tooth roll crusher includes a single-tooth roll body and a number of columnar crushing teeth distributed on the outer peripheral surface of the single-tooth roll body.

[0011] Based on the above, a driving motor is externally connected to the single-tooth roll crusher.

[0012] Based on the above, the rotation direction of the single-tooth roll crusher is the same as that of the scraper conveyor, and their rotation speeds are different. Here, open-pit mining refers to surface mining.

[0013] The utility model has substantial features and progress compared with the prior art. Specifically, the auxiliary crushing device for open-pit mining equipment provided by the utility model collects materials by arranging star-wheel scraper plates at one end or both the front and rear ends of the crawler traveling device, and arranges a crushing claw mechanism above the star-wheel scraper plates and a single-tooth roll crusher rotatably arranged at the feeding end of the scraper conveyor. Thus, firstly, the crushing claws can be used to pre-crush the large pieces of mined ore that roll down after cutting, which is convenient for the subsequent star-wheel scraper plates to collect. At the same time, the rotation of the roll body of the single-tooth roll crusher can be used to further squeeze and crush the collected and transported mined ore, thereby avoiding splashing and blockage phenomena in the subsequent transportation system.

[0014] Therefore, the auxiliary crushing device for open-pit mining equipment can achieve pre-active crushing of the mined ore continuously mined in the open-pit mine, prevent large pieces of mined ore from blocking the subsequent transportation system, and improve the collection capacity and efficiency of the mined ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic side structure diagram of the auxiliary crushing device for open-pit mining equipment provided by the utility model.

[0016] Figure 2 It is a schematic top view of the auxiliary crushing device of the open-pit mining equipment provided by the present utility model.

[0017] Figure 3 It is a schematic end view of the auxiliary crushing device of the open-pit mining equipment provided by the present utility model.

[0018] Figure 4 It is a schematic view of the crushing claw mechanism in the auxiliary crushing device of the open-pit mining equipment provided by the present utility model.

[0019] Figure 5 It is a schematic view of the single-tooth roll crusher in the auxiliary crushing device of the open-pit mining equipment provided by the present utility model.

[0020] In the figure: 1. Crawler travel device; 2. Scraper conveyor; 3. Single-tooth roll crusher; 4. Crushing claw mechanism; 5. Star wheel scraper plate; 6. Belt conveyor; 7. Swing oil cylinder; 8. Hinge seat; 9. Mounting seat; 10. Boom drive oil cylinder; 11. Boom; 12. Crushing claw drive oil cylinder; 13. Protective cover; 14. Forearm drive oil cylinder; 15. Forearm; 16. Crushing claw; 17. Single-tooth roll body; 18. Columnar crushing teeth; 19. Mounting shaft hole. Specific embodiments

[0021] The technical solution of the present utility model will be further described in detail below through specific embodiments.

[0022] Embodiment 1

[0023] This embodiment provides an auxiliary crushing device for open-pit mining equipment, as Figure 1 , Figure 2 , Figure 3 shown, including a crawler travel device 1 and a scraper conveyor 2 for fixing, and also including a crushing claw mechanism 4 and a single-tooth roll crusher 3. The crushing claw mechanism 4 is rotatably installed at the end of the crawler travel device 1 through a swing oil cylinder 7 for impact crushing of the massive ore materials falling from the cutting roll.

[0024] The single-tooth roll crusher 3 is installed across the transportation channel of the scraper conveyor 2 for squeezing and crushing the ore materials transported by the scraper conveyor 2.

[0025] A star wheel scraper plate 5 is further provided at the front end of the crawler travel device 1. The crushing claw mechanism 4 is located above the star wheel scraper plate 5. One end of the scraper conveyor 2 is installed at the discharge end of the star wheel scraper plate 5, and the other end is obliquely upward installed on the crawler travel device 1. A belt conveyor 6 is installed at the discharge end of the scraper conveyor 2.

[0026] Specifically, as Figure 4As shown, the crushing claw mechanism 4 includes a mounting base 9, a boom 11 hinged to the mounting base 9, a forearm 15 hinged to the boom 11, a crushing claw 16 hinged to the forearm 15, and a plurality of drive cylinders respectively for driving the boom 11, the forearm 15, and the crushing claw 16 to rotate. An articulated seat 8 hinged to the mounting base 9 is provided on the crawler traveling device 1.

[0027] Specifically, according to the distribution positions, several drive cylinders can be divided into a boom drive cylinder 10, a crushing claw drive cylinder 12, and a forearm drive cylinder 14.

[0028] To avoid damage to the rolling ore, protective covers 13 for protecting the drive cylinders are also provided on the boom and the forearm.

[0029] As Figure 5 shown, the single-tooth roll crusher 3 includes a single-tooth roll body 17 and a plurality of columnar crushing teeth 18 distributed on the outer peripheral surface of the single-tooth roll body 17. An installation shaft hole 19 is provided in the middle of the single-tooth roll body 17.

[0030] Specifically, the star wheel scraper plate includes a scraper plate, a motor seat, a drive motor, a rotating disk, a left star wheel, and a right star wheel; the scraper plate is hinged and installed on the crawler traveling device, the motor seat is installed on the back of the scraper plate, the drive motor is installed on the motor seat, the rotating disk is connected to the output shaft of the drive motor; the left star wheel and the right star wheel are installed on the rotating disk, and the materials are pushed onto the scraper conveyor through the rotation of the left star wheel and the right star wheel.

[0031] Embodiment 2

[0032] This embodiment provides an auxiliary crushing device for open-pit mining equipment. The main difference from Embodiment 1 is that in this embodiment: in order to realize non-turning round-trip collection of the cut ore, the star wheel scraper plates are respectively provided at the front and rear ends of the crawler traveling device. In order to be able to crush the ore at both the front and rear ends, a set of the crushing claw mechanisms are respectively rotatably installed at the front and rear ends of the crawler traveling device.

[0033] Embodiment 3

[0034] This embodiment provides an auxiliary crushing device for open-pit mining equipment. The main difference from Embodiment 1 or Embodiment 2 is that in this embodiment: the single-tooth roll crusher is externally connected with a drive motor. The rotation direction of the single-tooth roll crusher is the same as that of the scraper conveyor, and their rotation speeds are different.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. An auxiliary crushing device for open-pit mining equipment, characterized in that: It includes a single-tooth roller crusher and a crushing claw mechanism, wherein the crushing claw mechanism is rotatably mounted on the end of the crawler traveling device through a swing cylinder, and is used for impact crushing and cutting the large pieces of mineral materials that roll down; The single-tooth roller crusher is installed across the continuous transportation channel of mineral materials in open-pit mining equipment and is used for extruding and crushing the continuously transported mineral materials.

2. The auxiliary crushing device for open-pit mining equipment according to claim 1, characterized in that: A set of the crushing claw mechanism is rotatably mounted on the front and rear ends of the crawler walking device.

3. The auxiliary crushing device for open-pit mining equipment according to claim 2, characterized in that: The open-pit mining equipment continuous transportation channel for mineral materials includes a pair of star-wheel shovels and a pair of scraper conveyors. The star-wheel shovels are respectively arranged at the front and rear ends of the crawler walking device, and the scraper conveyor is arranged on the crawler walking device and connected to the discharge end of the star-wheel shovel. The crushing claw mechanism is located above the star-wheel shovel, and the single-tooth roller crusher is arranged across the scraper conveyor.

4. The auxiliary crushing device for open-pit mining equipment according to claim 1, 2 or 3, characterized in that: The crushing claw mechanism includes a mounting seat, a large arm hinged to the mounting seat, a small arm hinged to the large arm, a crushing claw hinged to the small arm, and a plurality of driving cylinders respectively used to drive the large arm, the small arm and the crushing claw to rotate; and the crawler walking device is provided with an articulated seat hinged to the mounting seat.

5. The auxiliary crushing device for open-pit mining equipment according to claim 4, characterized in that: The upper arm and the lower arm are also provided with protective covers for protecting the driving cylinder.

6. The auxiliary crushing device for open-pit mining equipment according to claim 3, characterized in that: The single-tooth roller crusher comprises a single-tooth roller body and a plurality of columnar crushing teeth distributed on the outer circumference of the single-tooth roller body.

7. The auxiliary crushing device for open-pit mining equipment according to claim 6, characterized in that: The single-tooth roller crusher is externally connected to a driving motor.

8. The auxiliary crushing device for open-pit mining equipment according to claim 7, characterized in that: The single-tooth roller crusher has the same rotation direction as the scraper conveyor, but the rotation speeds of the two are different.

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