A top inclined cutting and anchor integrated machine

Abstract

The application provides a cutting and roof bolting integrated machine, and belongs to the technical field of coal mine engineering machinery. The cutting and roof bolting integrated machine comprises a milling and digging head, a lifting part for providing a lifting force for the milling and digging head and controlling the milling and digging head to cut a roof in a predetermined direction, and a connecting frame for supporting the lifting part on a rack, and the lifting part is eccentrically installed on the connecting frame; the connecting frame is rotated to make the lifting part have a first position and a second position, and when cutting operation is performed, the connecting frame makes the lifting part deflect outward and present the first position to provide a safe operation space for the cutting operation; when roof cutting operation is performed, the connecting frame makes the lifting part deflect inward and switch to the second position, and the lifting part is used to make the milling and digging head cut the roof in the predetermined direction in an unfolded state. The application has the advantage of mechanized cutting of a roadway roof.

Description

Technical Field

[0001] This invention relates to the field of coal mine engineering machinery technology, specifically to an integrated machine for cutting inclined roof and anchoring. Background Technology

[0002] Roadheader-anchor (DBA) machines are widely used in coal mining, cutting and shaping roadways into rectangular shapes. However, in actual roadway excavation, there are situations where the top of the coal seam and the floor form a certain angle, resulting in leftover coal edges after the DBA machine cuts the coal. If these edges are not dealt with in time, they will fall off later, causing support failure and posing a risk of roadway collapse. Therefore, currently, the main method is to manually knock off the edges before supporting the roadway, which is time-consuming, labor-intensive, and poses certain safety hazards.

[0003] Integrated roadheader-anchor machine is widely used in coal mining, and the roadways it cuts are rectangular. However, in actual roadway excavation, wedge-shaped coal seams exist, where the top of the coal seam forms an angle with the floor. When the coal seam is thin and the mining height is high, thin edges of coal remain at the top. These edges are connected to other geological structures such as rocks, and if not dealt with in time, they are prone to falling off later, leading to support failure and the risk of roadway collapse. Currently, underground coal mines mainly rely on manual labor to knock off or pry off the edges of coal using tools such as pneumatic picks and crowbars before support is installed. During this process, coal seam collapses can easily injure people, and the positions of workers and those providing roof support overlap, making it impossible to operate the roof cutting and roof anchoring simultaneously. This is time-consuming, labor-intensive, inefficient, and poses a significant safety hazard. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this invention proposes an integrated machine for cutting and anchoring inclined roofs with mechanized inclined roof cutting function.

[0005] The technical solution of this invention is implemented as follows:

[0006] A cutting-angle-top excavation and anchoring integrated machine includes a frame, an anchoring mechanism, a cutting mechanism, a loading mechanism, and a temporary support and conveying mechanism. Both sides of the front end of the frame are equipped with cutting-angle-top mechanisms. Each cutting-angle-top mechanism includes a milling head, a lifting portion for providing lifting force to the milling head and controlling the milling head to cut angledly in a predetermined direction, and a connecting frame supporting the lifting portion on the frame. The lifting portion is eccentrically mounted on the connecting frame.

[0007] The lifting section is configured to have a retracted state and an extended state. When the lifting section is in the retracted state, the milling head is located within the lifting section and close to the lifting section in the length direction of the lifting section. When the lifting section is in the extended state, it is used for the milling head to cut the inclined top.

[0008] The connecting frame rotates to give the lifting part a first position and a second position. When cutting is performed, the connecting frame causes the lifting part to deflect outward and be in the first position, providing a safe working space for the cutting operation. When cutting at an angle, the connecting frame causes the lifting part to deflect inward and switch to the second position, which is used to cooperate with the lifting part to make the milling head cut at an angle in a predetermined direction in the unfolded state.

[0009] Furthermore, the connecting frame includes a rotary cylinder mounted on the frame, a main body portion disposed directly below the lifting portion, and a lateral portion disposed vertically on the outer side of the main body portion, wherein the lateral portion is connected to the rotary cylinder, and the lateral portion and the main body portion are configured such that when the lifting portion is in a retracted state, the milling head is located outside the lateral portion and the main body portion.

[0010] Furthermore, the rotary cylinder is mounted on the shovel plate of the loading mechanism, and the vertical projection of the milling head is always within the range of the shovel plate.

[0011] Furthermore, the connecting frame is configured such that when the lifting part is in the second position, the rear end face of the lateral part contacts the frame, and when the lifting part is in the first position and the milling head is in the retracted state, the milling head is located between the lifting part and the anchoring mechanism in the front-rear direction.

[0012] Furthermore, the lifting part includes a first arm and a second arm rotatably connected on a vertical plane. The bottom end of the first arm is rotatably connected to a connecting frame on the vertical plane. A milling head is installed on the end of the second arm away from the first arm. A first hydraulic cylinder with its extended end rotatably engaged with the first arm is rotatably installed on the connecting frame. A second hydraulic cylinder with its extended end rotatably engaged with the second arm is rotatably connected to the first arm.

[0013] Furthermore, the first arm is configured to include two arm plates symmetrically distributed on both sides of the second arm, and the top ends of the arm plates are rotatably connected to the sides of the second arm, and the second hydraulic cylinder is located between the two arm plates in the width direction.

[0014] Furthermore, there are two first cylinders, each corresponding to one of the two arm plates.

[0015] Furthermore, the arm plate includes a straight portion and an extension portion extending laterally from the top of the straight portion. The outer end of the extension portion is rotatably connected to the side of the second arm, and when the milling head is in the retracted state, it is located within the projection range of the extension portion in the vertical direction.

[0016] Furthermore, the second arm extends outward from one end relative to the first arm with an eccentric plate. The end of the eccentric plate away from the second arm is rotatably connected to a first connecting rod. The end of the first connecting rod away from the eccentric plate is rotatably connected to a second connecting rod, and the end of the second connecting rod away from the first connecting rod is rotatably connected to the first arm. The extended end of the second hydraulic cylinder is rotatably connected to the rotatable connection between the first connecting rod and the second connecting rod.

[0017] Furthermore, the milling head is configured such that its axis is perpendicular to the swing direction of the first arm and the second arm.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention enables mechanized roof cutting operations after the rectangular roadway is cut. Personnel only need to operate a remote control or handle from the rear. Compared with the existing technology, which mainly relies on manual knocking off the corner coal before support, this method is safer and more efficient.

[0020] 2. This invention enables the mechanized cutting of the inclined roof after the rectangular roadway is cut, resulting in high cutting efficiency. Furthermore, the roof anchoring operation can be carried out simultaneously during the cutting of the inclined roof, which greatly improves the efficiency of roadway excavation.

[0021] 3. This invention enables the mechanized cutting of the roof after the rectangular tunnel is cut. Compared with the existing technology that relies on manual methods such as pneumatic picks and crowbars, it causes less damage to the roof and results in a smoother roof surface after the operation.

[0022] 4. The cutting and tilting mechanism of the present invention can cooperate and compensate with the cutting mechanism in terms of function and space. Its structure is simple and its design is reasonable. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the inclined jacking mechanism of the integrated inclined jacking excavator and anchoring machine of the present invention when it is unfolded;

[0024] Figure 2 This is a schematic diagram of the inclined top cutting mechanism of the integrated inclined top excavation and anchoring machine of the present invention when it is stored.

[0025] Figure 3 This is a schematic diagram of the sloping top cutting mechanism of the integrated sloping top excavation and anchoring machine of the present invention;

[0026] Figure 4 This invention relates to the integrated cutting-angled top excavation and anchoring machine. Figure 3 Another perspective view. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 4 As shown, the integrated cutting and anchoring machine for inclined roof cutting provided in this embodiment of the invention mainly includes a frame 1, an anchoring mechanism 2, a cutting mechanism 3, a loading mechanism 4, a temporary support 6, a conveying mechanism 7, and two inclined roof cutting mechanisms 5 added to both sides of the front end of the frame 1. Wherein:

[0029] The inclined cutting mechanism 5 includes a milling head 10, a lifting section, and a connecting frame 9. The milling head 10 is equipped with a motor drive device, which cuts the coal wall under hydraulic drive.

[0030] The lifting section provides lifting force to the milling head 10 and controls it to cut the inclined roof in a predetermined direction. The lifting section serves two purposes: firstly, it supports the milling head 10 by providing lifting force for it to contact and cut into the inclined roof; secondly, it supports the displacement of the milling head 10 in the vertical plane, allowing it to be manually controlled by the control system according to the actual conditions of the inclined roof, thus cutting it in a predetermined direction. This predetermined direction is determined by the operator based on the actual conditions of the inclined roof in the roadway, controlling the direction in which the milling head 10 effectively cuts the inclined roof.

[0031] The connecting frame 9 serves as the overall support for the milling head 10 and the lifting section. It is mounted on the frame 1, and the bottom end of the lifting section is connected to the connecting frame 9, thus supporting it. Specifically, the lifting section is eccentrically mounted on the connecting frame 9. At this time, the connecting frame 9 can be rotated to give the section a first position and a second position.

[0032] Specifically, the connecting frame 9 causes the lifting section to be in a first position after it is deflected outward in the width direction of the frame 1. At this time, the space between the two lifting sections serves as a safe space for the cutting mechanism 3 to operate during the cutting operation. When a slanted cutting operation is performed, the connecting frame 9 causes the lifting section to deflect inward to switch to a second position.

[0033] Furthermore, the lifting section is configured to have a retracted state and an extended state. When the lifting section is in the retracted state, the milling head 10 is located within the lifting section and closely adheres to the lifting section in the length direction of the lifting section. When the lifting section is in the extended state, it is used by the milling head 10 to cut the inclined top.

[0034] The connecting frame 9 includes a rotary cylinder 8 mounted on the frame 1, a main body portion located directly below the lifting section, and a lateral portion vertically positioned on the outer side of the main body portion, with the lateral portion connected to the rotary cylinder 8. The rotary cylinder 8 drives the main body portion to deflect via the lateral portion.

[0035] In this embodiment of the invention, the lateral portion and the main body portion are configured such that when the lifting portion is in a retracted state, the milling head 10 is located outside the lateral portion and the main body portion.

[0036] Specifically, taking the lifting section in the first position as an example, the lateral section is located at the tail end of the outer side of the main body. At this time, when the lifting section is in the retracted state, the milling head 10 is located in the area between the front face of the lateral section and the outer side of the main body, so that the coal crushed on the milling head 10 will not accumulate on the lifting section and the connecting frame 9 after falling off.

[0037] The rotating hydraulic cylinder 8 is mounted on the shovel plate of the loading mechanism 4, ensuring that the vertical projection of the milling head 10 is always within the range of the shovel plate. Therefore, regardless of whether the lifting section is in the first or second position, or whether it is in a retracted or extended state, the vertical projection of the milling head 10 remains within the range of the shovel plate, effectively improving the coal collection efficiency of the loading mechanism 4.

[0038] In addition, the connecting frame 9 is configured such that when the lifting part is in the second position, the rear end face of the side part contacts the frame 1. At this time, the frame 1 can limit the side part and thus achieve the effect of limiting the lifting part. When the milling head 10 is cutting the inclined top, the lifting part is in the second position, which can improve the stability of the milling head 10 when cutting the inclined top.

[0039] When the lifting section is in the first position and the milling head 10 is in the retracted state, the milling head 10 is located between the lifting section and the anchoring mechanism 2 in the front-to-back direction. The milling head 10 is in a hidden state, which can better protect the milling head 10.

[0040] In this embodiment of the invention, the lifting portion includes a first arm 14 and a second arm 11 rotatably connected in a vertical plane, with the bottom end of the first arm 14 rotatably connected to a connecting frame 9 in the vertical plane. Specifically, the bottom end of the first arm 14 is rotatably connected to the main body portion.

[0041] The milling head 10 is mounted on the end of the second arm 11 away from the first arm 14, and a first hydraulic cylinder 15 with its extended end rotatably engaged with the first arm 14 is rotatably mounted on the connecting frame 9. At this time, the fixed end of the first hydraulic cylinder 15 is rotatably connected to the connecting frame 9. Specifically, the fixed end of the first hydraulic cylinder 15 is rotatably connected to the main body.

[0042] A second hydraulic cylinder 13 with an extended end that rotates in coordination with the second arm 11 is rotatably connected to the first arm 14.

[0043] By coordinating the first hydraulic cylinder 15 and the second hydraulic cylinder 13, the tilt angle of the first arm 14 can be adjusted, and the position of the milling head 10 can be adjusted by rotating the second arm 11 relative to the first arm 14. Simultaneously, when the first arm 14 swings, the milling head 10 also performs a circular motion. Therefore, by utilizing the swinging process of the first arm 14 and the swinging process of the second arm 11 relative to the first arm 14, the position of the milling head 10 in the vertical plane can be flexibly adjusted.

[0044] In the actual process of cutting the inclined roof, the first arm 14 and the second arm 11 can be controlled to cut the inclined roof of the roadway according to the actual situation of the inclined roof, which can replace the manual method of removing the inclined roof with hand tools, thus improving safety and efficiency.

[0045] The first arm 14 is configured with two arm plates symmetrically distributed on both sides of the second arm 11, and the top ends of the arm plates are rotatably connected to the sides of the second arm 11. The second hydraulic cylinder 13 is located between the two arm plates in the width direction. This configuration makes the lifting part more compact and occupies less space, making it suitable for the narrow front space of the tunneling and anchoring machine.

[0046] Two first hydraulic cylinders 15 are provided and are respectively set to the two boom plates. At this time, the two first hydraulic cylinders 15 provide more balanced and stable support for the first boom 14 and the second boom 11, which can enhance the lifting force and stability.

[0047] Furthermore, the boom plate includes a straight section and an extension extending laterally from the top of the straight section. The outer end of the extension is rotatably connected to the side of the second arm 11, and when the milling head 10 is in the retracted state, it is located within the projection range of the extension in the vertical direction. With this arrangement, when the lifting part is in the retracted state, the first arm 14 and the second arm 11 can be in a close-fitting state, so as to further reduce the space occupied by the cutting angle mechanism 5 during the cutting operation.

[0048] In addition, the second arm 11 extends outward from one end relative to the first arm 14 with an eccentric plate. The end of the eccentric plate away from the second arm 11 is rotatably connected to the first connecting rod 12. The end of the first connecting rod 12 away from the eccentric plate is rotatably connected to the second connecting rod 16. The end of the second connecting rod 16 away from the first connecting rod 12 is rotatably connected to the first arm 14. The extended end of the second hydraulic cylinder 13 is rotatably connected to the rotatable connection between the first connecting rod 12 and the second connecting rod 16.

[0049] Specifically, when the second hydraulic cylinder 13 is activated, it pushes / pulls the rotatable connection between the first connecting rod 12 and the second connecting rod 16, causing the second connecting rod 16 to swing on the first arm 14. At the same time, the first connecting rod 12 pushes / pulls the eccentric plate, causing the second arm 11 to swing on the first arm 14. At this time, the first connecting rod 12 and the second connecting rod 16, together with the second arm 11, can more stably support the extended end of the second hydraulic cylinder 13.

[0050] More specifically, the first connecting rod 12 is rotatably connected to the eccentric plate via the first pin 17, the first connecting rod 12 is rotatably connected to the second connecting rod 16 via the second pin 18, the second arm 11 is rotatably connected to the first arm 14 via the third pin 19, the first arm 14 is rotatably connected to the connecting frame 9 via the fourth pin 20, the first cylinder 15 is rotatably connected to the first arm 14 via the fifth pin 21, and the first cylinder 15 is rotatably connected to the connecting frame 9 via the sixth pin 22.

[0051] In this embodiment, the milling head 10 is configured such that its axis is perpendicular to the swing direction of the first arm 14 and the second arm 11.

[0052] The following is a detailed description of the working process of the inclined jacking mechanism 5 of the integrated cutting and jacking excavator provided in this embodiment:

[0053] When it is necessary to cut a beveled top:

[0054] Step 1: Start the first hydraulic cylinder 15 to make the lifting part and the milling head 10 swing forward around the fourth pin 20.

[0055] The second step is to activate the second hydraulic cylinder 13 so that the second arm 11 swings upward around the third pin 19. At this time, the lifting part switches from the retracted state to the extended state.

[0056] The third step is to start the rotating cylinder 8, which will switch the lifting part from the first position to the second position.

[0057] The fourth step is to control the first hydraulic cylinder 15 and the second hydraulic cylinder 13 to make the milling head 10 move in a predetermined direction according to the actual situation of the inclined roof of the roadway, so as to complete the cutting of the inclined roof.

[0058] During the cutting of the inclined plane, the two first arms 14 are positioned with their ends facing each other, while the two second arms 11 are positioned with their ends facing away from each other. This provides the two milling heads 10 with sufficient space to move without interfering with each other, making them suitable for various inclined plane conditions. Simultaneously, it ensures that the two milling heads 10 do not interfere with each other, enhancing safety.

[0059] After the angled cutting is completed:

[0060] First, activate the rotating cylinder 8 to switch the lifting section from the second position to the first position. Then, activate the first cylinder 15 and the second cylinder 13 in sequence to switch the lifting section from the unfolded state to the retracted state.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cuttable inclined-roof excavation and anchoring integrated machine, comprising a frame (1), an anchoring mechanism (2), a cutting mechanism (3), a loading mechanism (4), temporary support (6), and a conveying mechanism (7), characterized in that, Both sides of the front end of the frame (1) are provided with a cutting and tilting mechanism (5). The cutting and tilting mechanism (5) includes a milling head (10), a lifting part for providing lifting force to the milling head (10) and controlling the milling head (10) to cut and tilt in a predetermined direction, and a connecting frame (9) for supporting the lifting part on the frame (1). The lifting part is eccentrically mounted on the connecting frame (9). The lifting section includes a first arm (14) and a second arm (11) rotatably connected on a vertical plane. The bottom end of the first arm (14) is rotatably connected to a frame (9) on a vertical plane. A milling head (10) is mounted on the end of the second arm (11) away from the first arm (14). A first hydraulic cylinder (15) with its extended end rotatably engaged with the first arm (14) is rotatably mounted on the frame (9). A second hydraulic cylinder (13) with its extended end rotatably engaged with the second arm (11) is rotatably connected to the first arm (14). The second arm (11) extends outward from one end relative to the first arm (14) with an eccentric plate. The end of the eccentric plate away from the second arm (11) is rotatably connected to a first connecting rod (12). The end of the first connecting rod (12) away from the eccentric plate is rotatably connected to a second connecting rod (16). The end of the second connecting rod (16) away from the first connecting rod (12) is rotatably connected to the first arm (14). The extended end of the second oil cylinder (13) is rotatably connected to the rotatable connection between the first connecting rod (12) and the second connecting rod (16). The lifting part is configured to have a retracted state and an extended state. When the lifting part is in the retracted state, the milling head (10) is located within the lifting part and close to the lifting part in the length direction of the lifting part. When the lifting part is in the extended state, it is used for the milling head (10) to cut the inclined top. The connecting frame (9) rotates to give the lifting part a first position and a second position. When cutting is performed, the connecting frame (9) causes the lifting part to deflect outward and be in the first position, providing a safe working space for the cutting operation. When cutting the top at an angle, the connecting frame (9) causes the lifting part to deflect inward and switch to the second position, which is used to cooperate with the lifting part to make the milling head (10) cut the top at an angle in a predetermined direction in the unfolded state.

2. The integrated excavation and anchoring machine capable of cutting inclined tops according to claim 1, characterized in that, The connecting frame (9) includes a rotary cylinder (8) mounted on the frame (1), a main body part located directly below the lifting part, and a lateral part vertically located on the outer side of the main body part, wherein the lateral part is connected to the rotary cylinder (8), and the lateral part and the main body part are configured such that when the lifting part is in a retracted state, the milling head (10) is located outside the lateral part and the main body part.

3. The integrated excavation and anchoring machine capable of cutting inclined tops according to claim 2, characterized in that, The rotary cylinder (8) is mounted on the shovel plate of the loading mechanism (4), and the vertical projection of the milling head (10) is always within the range of the shovel plate.

4. The integrated excavation and anchoring machine capable of cutting inclined tops according to claim 2, characterized in that, The connecting frame (9) is configured such that when the lifting part is in the second position, the rear end face of the lateral part contacts the frame (1), and when the lifting part is in the first position and the milling head (10) is in the retracted state, the milling head (10) is located between the lifting part and the anchoring mechanism (2) in the front-back direction.

5. The integrated excavator and anchor cutter according to claim 1, characterized in that, The first arm (14) is configured to include two arm plates symmetrically distributed on both sides of the second arm (11), and the top ends of the arm plates are rotatably connected to the side of the second arm (11), and the second oil cylinder (13) is located between the two arm plates in the width direction.

6. The integrated excavator and anchor cutter according to claim 5, characterized in that, The first oil cylinder (15) is provided in two parts, which are respectively provided for the two arm plates.

7. The integrated excavator and anchor cutter according to claim 5, characterized in that, The arm plate includes a straight section and an extension extending laterally from the top of the straight section. The outer end of the extension is rotatably connected to the side of the second arm (11), and when the milling head (10) is in a retracted state, it is located within the projection range of the extension in the vertical direction.

8. The integrated excavator and anchor cutter according to claim 1, characterized in that, The milling head (10) is configured such that its axis is perpendicular to the swing direction of the first arm (14) and the second arm (11).

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