Multi-degree-of-freedom discharging device for open-pit side-hill mining

Abstract

The present application belongs to the technical field of mining equipment. In order to solve the problem that the existing side slope mining equipment is generally fixed or semi-fixed, which cannot meet the unloading requirements under different working conditions, a kind of open pit side slope mining multi-degree of freedom unloading device is provided. The device includes a support seat, a horizontal unloading part, a first drive assembly, a high beam, an inclined unloading part, a connecting frame and a second drive assembly. The first drive assembly drives the horizontal unloading part to rotate, and the second drive assembly drives the connecting frame to move, thereby driving the inclined unloading part to rotate around the vertical line of the high beam. The device has a simple structure. By changing the unloading position and unloading height through the first drive assembly and the second drive assembly respectively, the overall unloading part can realize multi-degree of freedom movement relying on the mechanical structure, and the adaptability of the device to different working conditions is improved.

Description

Technical Field

[0001] This invention belongs to the field of mining equipment technology, and particularly relates to a multi-degree-of-freedom unloading device for open-pit sidewall mining. Background Technology

[0002] Open-pit sidewall mining equipment is widely used in open-pit coal mines as the main measure to solve the problem of coal pressure on the sidewalls. It uses a continuous miner to gradually tunnel inward from the gentle slope sidewall to extract the coal pressure on the sidewalls.

[0003] Because open-pit mining equipment generally has high coal production efficiency and operates on a semi-continuous basis, coal accumulation will inevitably occur at the unloading point if the supporting transport equipment is not loaded in a timely manner as the coal is gradually excavated from the side slopes. Existing unloading equipment employs a semi-fixed unloading system to address this issue. While the unloading height can be adjusted independently, other degrees of freedom of movement require coordination with onboard equipment. However, this method is complex and difficult to operate, and cannot meet the unloading requirements under different working conditions. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a multi-degree-of-freedom unloading device for open-pit sidewall mining that can achieve multi-degree-of-freedom motion and adapt to different working conditions.

[0005] This invention provides a multi-degree-of-freedom unloading device for open-pit sidewall mining, comprising:

[0006] Support base;

[0007] A rotating mechanism is disposed on the support base. The rotating mechanism includes a horizontal unloading part and a first driving component. The first driving component is disposed between the support base and the horizontal unloading part, and the first driving component drives the horizontal unloading part to rotate.

[0008] The tilting mechanism includes an overhead beam, a tilting unloading section, a connecting frame, and a second drive assembly. The overhead beam includes two parallel and connected frames, which are respectively located on both sides of the horizontal unloading section and at its ends. The tilting unloading section is hinged to the end of the horizontal unloading section near the overhead beam. One end of the connecting frame is hinged to the end of the tilting unloading section away from the overhead beam. One end of the second drive assembly is hinged to the top of the overhead beam, and the other end is connected to the other end of the connecting frame. The second drive assembly drives the connecting frame to move, thereby causing the tilting unloading section to rotate vertically around the perpendicular bisector of the overhead beam.

[0009] Optionally, the first drive assembly includes a bearing disc, a hydraulic motor, and a fastening assembly. The bearing disc and the hydraulic motor are both mounted on the support base via the fastening assembly. The outer ring of the bearing disc is connected to the horizontal unloading part, and a large gear is fitted on the outer ring of the bearing disc. A small gear that meshes with the large gear is fitted on the outer circumference of the drive shaft of the hydraulic motor, so that the hydraulic motor drives the bearing disc to rotate.

[0010] Optionally, the fastening assembly includes a first fastener, a second fastener, and a third fastener, wherein the first fastener is used to fix the inner ring of the bearing disc, the second fastener is used to fix the outer ring of the bearing disc, and the third fastener is used to fix the hydraulic motor.

[0011] The two adjacent first fasteners or the two second fasteners are connected by steel wire.

[0012] Optionally, the second drive assembly includes a lifting cylinder and two telescopic members. The two telescopic members are respectively disposed at both ends of the connecting frame to connect with both ends of the top of the overhead beam. The lifting cylinder is disposed between the two telescopic members, and the operation of the lifting cylinder drives the two telescopic members to move synchronously in extension and retraction.

[0013] Optionally, both of the telescopic components are provided with locking components.

[0014] Optionally, the tilting mechanism further includes a flexible element, one end of which is connected to the overhead beam and the other end of which is connected to the tilting unloading section. When the tilting unloading section and the horizontal unloading section are on the same horizontal plane, the flexible element is tensioned.

[0015] Optionally, when the angle between the inclined unloading section and the ground is 15°, a fixing block is provided between the inclined unloading section and the horizontal unloading section.

[0016] Optionally, the end of the fixing block near the horizontal unloading part is an open end, and the end of the fixing block near the inclined unloading part is provided with a through hole. The open end is inserted into the horizontal unloading part, and the fixing block is connected to the inclined unloading part by a pin passing through the through hole.

[0017] Optionally, it also includes a rear end head, one side of which is connected to the main body of the sidewall mining equipment, and the other side of which is hinged to the support base.

[0018] Optionally, the rotation angle of the horizontal unloading section is 180°.

[0019] The technical solution provided by the embodiments of the present invention has the following beneficial effects compared with the prior art:

[0020] This invention provides a multi-degree-of-freedom unloading device for open-pit sidewall mining. By setting a first driving component, the device can drive the horizontal unloading section to rotate left and right. Specifically, the first driving component can drive the horizontal unloading section and the inclined structure connected to it to rotate left and right. A connecting frame and a second driving component are provided. The connecting frame connects the second driving component and the inclined unloading section. The second driving component is located between the overhead beam and the connecting frame. Activating the second driving component moves the connecting frame, changing the distance between the connecting frame and the overhead beam, thereby changing the distance between the end of the inclined unloading section furthest from the overhead beam and the overhead beam. Even if the inclined unloading section rotates vertically around the perpendicular bisector of the overhead beam, the first driving component can change the overall rotation of the unloading section on the horizontal plane, and the second driving component can adjust the inclination angle of the inclined unloading section, i.e., change the unloading height. This allows the unloading section to achieve multi-degree-of-freedom movement through a mechanical structure, improving the adaptability of the device to different working conditions. The device has a simple structure and can flexibly adjust the unloading position and height according to actual conditions. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a multi-degree-of-freedom unloading device for open-pit side-cutting mining as described in an embodiment of the present invention when it is in a horizontal state;

[0024] Figure 2 This is a schematic diagram of the inclined unloading section reaching the ideal unloading position according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection between the horizontal unloading section and the inclined unloading section according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the first driving component according to an embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of the first driving component according to an embodiment of the present invention;

[0028] Figure 6This is a schematic diagram illustrating the connection between the horizontal unloading section and the elevated beam according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the fixing block according to an embodiment of the present invention.

[0030] The components include: 1. Support base; 2. Horizontal unloading section; 3. Overhead beam; 3.1. Frame body; 4. Inclined unloading section; 5. Connecting frame; 6. Lifting cylinder; 7. Telescopic component; 8. Front unloading section; 9. Rear end head; 10. Connecting component; 11. Bearing disc; 12. Hydraulic motor; 13. Fastening assembly; 13.1. First fastener; 13.2. Second fastener; 13.3. Third fastener; 14. Flexible component; 15. Large gear; 16. Small gear; 17. Locking component; 18. Fixing block; 18.1. Through hole. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0033] Reference Figures 1 to 7 As shown, this embodiment provides a multi-degree-of-freedom unloading device for open-pit sidewall mining, including a support base 1, a rotating mechanism, and an tilting mechanism.

[0034] Among them, reference Figure 1 , Figure 2 and Figure 6As shown, the rotating mechanism is mounted on the support base 1. The rotating mechanism includes a horizontal unloading section 2 and a first driving assembly. The first driving assembly is located between the support base 1 and the horizontal unloading section 2. The first driving assembly drives the horizontal unloading section 2 to rotate. The tilting mechanism includes an overhead beam 3, a tilting unloading section 4, a connecting frame 5, and a second driving assembly. The overhead beam 3 includes two parallel and connected frames 3.1, which are respectively located on both sides of the horizontal unloading section 2 and at the ends of the horizontal unloading section 2. The tilting unloading section 4 is hinged to the end of the horizontal unloading section 2 near the overhead beam 3. One end of the connecting frame 5 is hinged to the end of the tilting unloading section 4 away from the overhead beam 3. One end of the second driving assembly is hinged to the top of the overhead beam 3, and the other end is connected to the other end of the connecting frame 5. The operation of the second driving assembly drives the connecting frame 5 to move, thereby driving the tilting unloading section 4 to rotate vertically around the vertical line of the overhead beam 3. Specifically, the support base 1 is used to support the rotating mechanism and the tilting mechanism and is in contact with the ground. The top of the support base 1 is also equipped with a front unloading section 8, the outlet of which faces the horizontal unloading section 2. The horizontal unloading section 2 and the tilting unloading section 4 are connected to form a continuous unloading system. A first drive assembly is provided, which can drive the horizontal unloading section 2 to rotate left and right. That is, the first drive assembly can drive the horizontal unloading section 2 and the tilting structure connected to it to rotate left and right. A connecting frame 5 and a second drive assembly are provided. The connecting frame 5 is used to connect the second drive assembly and the tilting unloading section 4. The second drive assembly is located between the overhead beam 3 and the connecting frame 5. The system is activated by... The second drive assembly operates, driving the connecting frame 5 to move, thereby changing the distance between the connecting frame 5 and the overhead beam 3, and changing the distance between the end of the inclined unloading part 4 away from the overhead beam 3 and the overhead beam 3. Even if the inclined unloading part 4 rotates vertically around the perpendicular bisector of the overhead beam 3, the first drive assembly in this device can change the rotation of the entire unloading part on the horizontal plane, and the second drive assembly can adjust the tilt angle of the inclined unloading part 4, that is, change the unloading height, so that the entire unloading part can achieve multi-degree-of-freedom movement by means of mechanical structure, improving the adaptability of this device to different working conditions. This device has a simple structure and can flexibly adjust the unloading position and height according to the actual situation.

[0035] Furthermore, refer to Figure 4 and Figure 5As shown, the first drive assembly includes a bearing disc 11, a hydraulic motor 12, and a fastening assembly 13. Both the bearing disc 11 and the hydraulic motor 12 are mounted on the support base 1 via the fastening assembly 13. The outer ring of the bearing disc 11 is connected to the horizontal unloading section 2, and a large gear 15 is fitted around the outer ring of the bearing disc 11. A small gear 16, meshing with the large gear 15, is fitted around the outer circumference of the drive shaft of the hydraulic motor 12, so that the hydraulic motor 12 drives the bearing disc 11 to rotate. Specifically, the bearing disc 11 and the hydraulic motor 12 are fixed to the support base 1 via the fastening assembly 13. The horizontal unloading section 2 is connected to the bearing disc 11. By starting the hydraulic motor 12, the hydraulic motor 12 drives the small gear 16 to rotate, which in turn drives the large gear 15 to rotate. The large gear 15 then drives the bearing disc 11 connected to it to rotate, thereby causing the horizontal unloading section 2 connected to the bearing disc 11 to rotate. The rotation angle of the horizontal unloading section 2 is 180°, meaning the maximum left and right rotation angle of the horizontal unloading section 2 is 90°.

[0036] Continue to refer to Figure 4 and Figure 5 As shown, the fastening assembly 13 includes a first fastener 13.1, a second fastener 13.2, and a third fastener 13.3. The first fastener 13.1 is used to fix the inner ring of the bearing disc 11, the second fastener 13.2 is used to fix the outer ring of the bearing disc 11, and the third fastener 13.3 is used to fix the hydraulic motor 12. Adjacent first fasteners 13.1 or two second fasteners 13.2 are connected by steel wire. Specifically, the first fasteners 13.1, second fasteners 13.2, and third fasteners 13.3 are all bolts. By tightening nuts at both ends of the bolts, the horizontal unloading part 2 and the hydraulic motor 3 can be installed and disassembled. Adjacent first fasteners 13.1 and adjacent second fasteners 13.2 are connected by steel wire, ensuring the reliability of the connection and preventing the first fasteners 13.1 and second fasteners 13.2 from loosening and affecting the rotation of the horizontal unloading part 2.

[0037] Reference Figure 3As shown, the second drive assembly includes a lifting cylinder 6 and two telescopic members 7. The two telescopic members 7 are respectively located at both ends of the connecting frame 5 to connect with both ends of the top of the overhead beam 3. The lifting cylinder 6 is located between the two telescopic members 7. When the lifting cylinder 6 operates, it drives the two telescopic members 7 to move synchronously. Specifically, the top of the overhead beam 3 is provided with three hinge seats. One end of the lifting cylinder 6 is connected to the hinge seat located in the middle position, and the other end is connected to the connecting frame 5. One end of the two telescopic members 7 is connected to the hinge seats located at both ends of the overhead beam 3, and the other end is connected to the connecting frame 5. The two telescopic members 7 improve the stability of the connection between the lifting cylinder 6 and the overhead beam 3 and the connecting frame 5. By starting the lifting cylinder 6, the connecting frame 5 is moved, thereby changing the distance between the connecting frame 5 and the overhead beam 3, and changing the distance between the end of the inclined unloading part 4 away from the overhead beam 3 and the overhead beam 3. This causes the inclined unloading part 4 to rotate vertically around the vertical line of the overhead beam 3, thus changing the unloading height.

[0038] Furthermore, both telescopic components 7 are equipped with locking elements 17. Specifically, the telescopic component 7 is a structure that can provide support and adjust its length. It can be a telescopic rod or a hinge. When the telescopic component 7 stops moving with the lifting cylinder 6, the locking element 17 can lock the telescopic component 7 to prevent further movement. In this embodiment, the telescopic component 7 is a telescopic rod with multiple locking holes evenly spaced on it. The locking element 17 is a pin. By inserting the pin into the locking hole, the telescopic rod is locked. After the telescopic component 7 is locked, the lifting cylinder 6 is depressurized to prevent the lifting cylinder 6 from malfunctioning due to prolonged operation.

[0039] In some embodiments, refer to Figure 1 As shown, the tilting mechanism also includes a flexible member 14. One end of the flexible member 14 is connected to the overhead beam 3, and the other end is connected to the tilting unloading section 4. When the tilting unloading section 4 and the horizontal unloading section 2 are on the same horizontal plane, the flexible member 14 is tensioned. Specifically, when the tilting unloading section 4 is horizontal, the flexible member 14 can generate tension between the tilting unloading section 4 and the overhead beam 3, ensuring the overall safety of the unloading section.

[0040] Reference Figure 2 As shown, when the angle between the inclined unloading section 4 and the ground is 15°, a fixing block 18 is provided between the inclined unloading section 4 and the horizontal unloading section 2. Specifically, the ideal inclination angle of the inclined unloading section 4 is 15°. Both the inclined unloading section 4 and the horizontal unloading section 2 are frame structures, and the top of the inclined unloading section 4 is hinged to the top of the horizontal unloading section 2. When the angle between the inclined unloading section 4 and the ground is 15°, a fixing block 18 is provided between the inclined unloading section 4 and the horizontal unloading section 2. The fixing block 18 enables the horizontal unloading section 2 and the inclined unloading section 4 to connect for continuous unloading, and at the same time provides support for the inclined unloading section 4.

[0041] Furthermore, refer to Figure 7 As shown, the end of the fixing block 18 near the horizontal unloading section 2 is an open end, and the end of the fixing block 18 near the inclined unloading section 4 has a through hole 18.1. The open end is inserted into the horizontal unloading section 2, and the fixing block 18 is connected to the inclined unloading section 4 by a pin passing through the through hole 18.1. Specifically, the fixing block 18 is hinged to the inclined unloading section 4, and the open end is inserted into the horizontal unloading section 2. When the angle between the inclined unloading section 4 and the ground is 15°, the open end of the fixing block 18 is inserted into the horizontal unloading section 2, providing support for the inclined unloading section 4. When the lifting cylinder 6 continues to extend and retract to drive the inclined unloading section 4 to rotate, the open end of the fixing block 18 disengages from the horizontal unloading section 2. This eliminates the need to remove the pin and does not affect the movement of the inclined unloading section 4, preventing the fixing block 18 from being fixed at both ends, thus preventing deformation of the inclined unloading section 4 as it continues to move.

[0042] Reference Figure 1 As shown, this device also includes a rear end head 9. One side of the rear end head 9 is connected to the main body of the sidewall mining equipment, and the other side of the rear end head 9 is hinged to the support base 1. Specifically, the top of the rear end head 9 is hinged to the top of the support base 1 via a connector 10, allowing the rear end head 9 to rotate upwards around the connector 10. This makes the device suitable for different terrain conditions, improving its applicability. Furthermore, by rotating the rear end head 9, the distance between the bottom of the rear end head 9 and the ground is increased, facilitating the installation of the drive components at the tail of the sidewall mining equipment.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A multi-degree-of-freedom unloading device for open-pit sidewall mining, characterized in that, include: Support base (1); A rotating mechanism is provided on the support base (1). The rotating mechanism includes a horizontal unloading part (2) and a first driving component. The first driving component is provided between the support base (1) and the horizontal unloading part (2). The first driving component drives the horizontal unloading part (2) to rotate. The tilting mechanism includes an overhead beam (3), a tilting unloading section (4), a connecting frame (5), and a second drive assembly. The overhead beam (3) includes two parallel and connected frames (3.1). The two frames (3.1) are respectively located on both sides of the horizontal unloading section (2) and at the end of the horizontal unloading section (2). The tilting unloading section (4) is hinged to one end of the horizontal unloading section (2) near the overhead beam (3). One end of the connecting frame (5) is hinged to one end of the tilting unloading section (4) away from the overhead beam (3). One end of the second drive assembly is hinged to the top of the overhead beam (3), and the other end is connected to the other end of the connecting frame (5). The second drive assembly drives the connecting frame (5) to move, thereby driving the tilting unloading section (4) to rotate vertically around the vertical line of the overhead beam (3). Both the inclined unloading section (4) and the horizontal unloading section (2) are frame structures, and the top of the inclined unloading section (4) is hinged to the top of the horizontal unloading section (2). When the angle between the inclined unloading section (4) and the ground is 15°, a fixing block (18) is provided between the inclined unloading section (4) and the horizontal unloading section (2). The end of the fixing block (18) near the horizontal unloading section (2) is an open end. The end of the fixing block (18) near the inclined unloading section (4) is provided with a through hole (18.1). The open end is inserted into the horizontal unloading section (2). The fixing block (18) is connected to the inclined unloading section (4) by inserting a pin through the through hole (18.1). The fixing block (18) is hinged to the inclined unloading section (4).

2. The open-pit side-slope mining multi-degree-of-freedom unloading device according to claim 1, characterized in that, The first drive assembly includes a bearing disk (11), a hydraulic motor (12), and a fastening assembly (13). The bearing disk (11) and the hydraulic motor (12) are both mounted on the support base (1) via the fastening assembly (13). The outer ring of the bearing disk (11) is connected to the horizontal unloading part (2), and a large gear (15) is sleeved on the outer ring of the bearing disk (11). A small gear (16) that meshes with the large gear (15) is sleeved on the outer circumference of the drive shaft of the hydraulic motor (12), so that the hydraulic motor (12) drives the bearing disk (11) to rotate.

3. The open-pit side-slope mining multi-degree-of-freedom unloading device according to claim 2, characterized in that, The fastening assembly (13) includes a first fastener (13.1), a second fastener (13.2), and a third fastener (13.3). The first fastener (13.1) is used to fix the inner ring of the bearing disc (11), the second fastener (13.2) is used to fix the outer ring of the bearing disc (11), and the third fastener (13.3) is used to fix the hydraulic motor (12). The two adjacent first fasteners (13.1) or the two second fasteners (13.2) are connected by steel wire.

4. The open-pit side-slope mining multi-degree-of-freedom unloading device according to claim 1, characterized in that, The second drive assembly includes a lifting cylinder (6) and two telescopic components (7). The two telescopic components (7) are respectively disposed at both ends of the connecting frame (5) to connect with both ends of the top of the overhead beam (3). The lifting cylinder (6) is disposed between the two telescopic components (7). The lifting cylinder (6) drives the two telescopic components (7) to move synchronously.

5. The open-pit side-slope mining multi-degree-of-freedom unloading device according to claim 4, characterized in that, Both of the telescopic components (7) are provided with locking components (17).

6. The open-pit sidewall mining multi-degree-of-freedom unloading device according to claim 1, characterized in that, The tilting mechanism also includes a flexible element (14), one end of which is connected to the overhead beam (3) and the other end is connected to the tilting unloading part (4). When the tilting unloading part (4) and the horizontal unloading part (2) are on the same horizontal plane, the flexible element (14) is tensioned.

7. The open-pit side-cutting multi-degree-of-freedom unloading device according to claim 1, characterized in that, It also includes a rear end head (9), one side of which is connected to the main body of the sidewall mining equipment, and the other side of which is hinged to the support base (1).

8. The open-pit side-slope mining multi-degree-of-freedom unloading device according to claim 1, characterized in that, The rotation angle of the horizontal unloading section (2) is 180°.

Images