An auxiliary support structure for a coal mine drill

Abstract

The application discloses an auxiliary support structure of a coal mine drilling machine, and belongs to the field of coal mine drilling machines.The auxiliary support structure comprises a load-bearing main beam and two support assemblies symmetrically hinged on the front side of the load-bearing main beam; further comprising an angle adjusting mechanism; the angle adjusting mechanism comprises a first hinge seat fixedly installed on the middle part of the front side of the load-bearing main beam and two first hydraulic telescopic rods symmetrically hinged on the front side of the first hinge seat, and the output end of the first hydraulic telescopic rod is hinged with a second hinge seat, and the second hinge seat is connected with the support assembly. The mechanical automatic adjustment of the angle between the support assembly and the load-bearing main beam is realized by the output end of the first hydraulic telescopic rod extending and retracting, replacing the traditional manual adjustment mode of the bolt set. This not only greatly improves the adjustment efficiency and reduces the time required for manual operation, but also avoids the inconvenience and safety risks that may be caused by manual operation in the complex environment of the coal mine, and improves the safety and convenience of the overall operation.

Description

Technical Field

[0001] This application relates to the field of coal mine drilling rig technology, specifically an auxiliary support structure for a coal mine drilling rig. Background Technology

[0002] Drilling rigs, as an important engineering equipment, are widely used in various drilling operations such as mineral exploration, railways, highways, bridges, water conservancy and hydropower, tunnels, water wells, anchor bolts, small-diameter diamond core wireline drilling, civil engineering, engineering geological exploration, geothermal drilling, coalbed methane drilling, and anti-outburst drilling.

[0003] In the field of coal mining, coal mining drills are indispensable mining equipment. To ensure the stability of coal mining drills during mining operations, they are usually equipped with auxiliary support structures. Once the coal mining drill reaches the location to be mined, the auxiliary support structures are deployed to provide effective support for the drill.

[0004] The currently used auxiliary support structure for coal mine drilling rigs mainly consists of a first hydraulic telescopic rod and a support platform. The first hydraulic telescopic rod is connected to the main beam of the drilling rig, while the support platform is connected to the telescopic end of the first hydraulic telescopic rod, which is positioned along the direction of gravity. During operation, the extension and retraction of the first hydraulic telescopic rod brings the support platform into contact with the ground, thus providing auxiliary support for the drilling rig. However, in this structure, the first hydraulic telescopic rod is fixedly connected to the drilling rig, and its position remains unchanged. This makes it unsuitable for adapting to complex and varied terrain, resulting in a limited range of applications.

[0005] To address the aforementioned issues, Chinese utility model patent CN213478245U discloses an auxiliary support structure for a coal mine drilling rig. In this structure, when the coal mine drilling rig is placed horizontally on the ground, the main load-bearing beam is connected to the rig and parallel to the ground, while two first hydraulic telescopic rods are perpendicular to the ground with their telescopic ends facing downwards. During coal mining, by adjusting the angle between the two connecting rods, a suitable support position for the two first hydraulic telescopic rods is selected (i.e., a relatively flat position where the two first hydraulic telescopic rods can provide stable support for the coal mine drilling rig). Then, the first hydraulic telescopic rods are extended and retracted until the support platform contacts the ground, thus unfolding the auxiliary support structure and providing stable support for the coal mine drilling rig. This design allows for arbitrary adjustment of the positions of the two connecting rods in the support assembly, enabling the two hydraulic telescopic rods to be positioned arbitrarily for supporting the coal mine drilling rig. This allows for the selection of suitable support positions in uneven terrain, adapting to complex and varied terrain, achieving stable mining operations, and solving the problem of limited application range of existing auxiliary support structures for coal mine drilling rigs.

[0006] However, the method of adjusting the angle between the support component and the main beam by adjusting the bolt group used in this patent is simple and convenient. However, since the working environment of the coal mine drilling rig is in the coal mine, affected by factors such as the soil quality of the coal seam, manual adjustment is not only time-consuming, but may also increase safety risks due to inconvenience of operation.

[0007] Therefore, this application provides an auxiliary support structure for a coal mine drilling rig to solve the above problems. Utility Model Content

[0008] This application provides an auxiliary support structure for a coal mine drilling rig, aiming to solve the problems mentioned in the background art, such as the fact that the existing auxiliary support structure for coal mine drilling rigs can adjust the support position but uses a manual adjustment of bolt groups, which is not only time-consuming in the complex environment of coal mines, but may also increase safety risks due to inconvenient operation.

[0009] To achieve the above objectives, this application provides the following technical solution: an auxiliary support structure for a coal mine drilling rig, comprising a load-bearing main beam for connection to the coal mine drilling rig and two support components symmetrically hinged to the front side of the load-bearing main beam; further comprising an angle adjustment mechanism for adjusting the angle between the support components and the load-bearing main beam; the angle adjustment mechanism includes a first hinge seat fixedly installed at the middle of the front side of the load-bearing main beam and two first hydraulic telescopic rods symmetrically hinged to the front side of the first hinge seat, the output end of the first hydraulic telescopic rod being hinged to a second hinge seat, the second hinge seat being connected to the support components. When the output end of the first hydraulic telescopic rod extends, it pushes the support component to rotate outward around the hinge point with the load-bearing main beam, increasing the angle between the support component and the load-bearing main beam; when the output end of the first hydraulic telescopic rod retracts, it pulls the support component to rotate inward around the hinge point, decreasing the angle between them, thereby achieving angle adjustment.

[0010] Preferably, the support assembly includes a connecting rod hinged to the load-bearing main beam and a second hydraulic telescopic rod fixedly connected to the end of the connecting rod away from the load-bearing main beam. The output end of the second hydraulic telescopic rod is connected to a support platform for contacting the ground. This structure allows the support platform to flexibly adapt to different ground heights, ensuring stable support for the coal mine drilling rig under various terrain conditions, further enhancing the stability and reliability of the coal mine drilling rig when operating in complex terrain.

[0011] Preferably, to facilitate the adaptation of the support platform to ground with different inclinations: the top of the support platform is provided with a ball groove, and the output end of the second hydraulic telescopic rod is fixedly connected to a ball for fitting into the ball groove. This design allows the support platform to flexibly adapt to ground with different inclinations, ensuring full contact between the support platform and the ground, increasing the support area, improving the stability of the support, and avoiding the problem of uneven force on the support platform due to ground inclination affecting the support effect.

[0012] Preferably, to facilitate adjustment of the distance between the hinge point of the second hydraulic telescopic rod and the connecting rod and the load-bearing main beam: the connecting rod is a third hydraulic telescopic rod, and the cylinder of the third hydraulic telescopic rod is hinged to the load-bearing main beam, while the output end is fixedly connected to the cylinder of the second hydraulic telescopic rod. This allows the overall length of the support assembly to be flexibly varied, further expanding the range of motion of the support platform, better adapting to different working environments and terrain requirements, and improving the versatility of the auxiliary support structure.

[0013] Preferably, to ensure the stability of the connection between the load-bearing main beam and the third hydraulic telescopic rod: symmetrical support plates are fixedly connected to the front side of the load-bearing main beam for contacting the top and bottom of the third hydraulic telescopic rod. The symmetrically fixed support plates on the front side of the load-bearing main beam can contact the top and bottom of the third hydraulic telescopic rod, providing additional support and restraint for the third hydraulic telescopic rod.

[0014] Preferably, to facilitate the guiding effect of the third hydraulic telescopic rod rotating around the hinge point with the load-bearing main beam, a guiding mechanism is also included. This guiding mechanism comprises an arc-shaped groove formed on the support plate with the hinge point of the third hydraulic telescopic rod and the load-bearing main beam as its origin, and a guide rod inserted into the arc-shaped groove and fixedly connected to the cylinder of the third hydraulic telescopic rod. The arc-shaped groove of the guiding mechanism is formed on the support plate with the hinge point of the third hydraulic telescopic rod and the load-bearing main beam as its origin, and the guide rod is inserted into the arc-shaped groove and fixedly connected to the cylinder of the third hydraulic telescopic rod. When the third hydraulic telescopic rod rotates around the hinge point, the guide rod moves along the arc-shaped groove, guiding the rotation of the third hydraulic telescopic rod, ensuring a smooth and stable rotation process, avoiding deviation or jamming, and improving the accuracy of angle adjustment.

[0015] Preferably, to reduce wear between the guide rod and the arc-shaped groove, a bearing adapted to fit the inner wall of the arc-shaped groove is fitted onto the guide rod. The bearing on the guide rod adapts to the inner wall of the arc-shaped groove, transforming the sliding friction between the guide rod and the arc-shaped groove into rolling friction, greatly reducing the degree of wear between them, reducing the resistance generated by friction, making the movement of the guide rod within the arc-shaped groove smoother, and also extending the service life of the guide rod and the support plate.

[0016] Preferably, to facilitate precise adjustment of the angle between the third hydraulic telescopic rod and the main load-bearing beam, an arc-shaped scale is provided on the support plate at the outer position corresponding to the arc-shaped groove. This arc-shaped scale on the support plate provides an intuitive angle reference for the operator. By observing the position of the guide rod or the third hydraulic telescopic rod corresponding to the arc-shaped scale, the operator can accurately determine the angle between the third hydraulic telescopic rod and the main load-bearing beam, facilitating precise angle adjustment and ensuring that the support angle of the support assembly meets operational requirements, thus improving operational accuracy.

[0017] This application achieves automatic mechanical adjustment of the angle between the support assembly and the load-bearing main beam by extending and retracting the output end of the first hydraulic telescopic rod, replacing the traditional method of manually adjusting the bolt assembly. This not only significantly improves adjustment efficiency and reduces the time required for manual operation, but also avoids the inconvenience and safety risks that may arise from manual operation in the complex environment of coal mines, thereby enhancing the overall safety and convenience of the operation.

[0018] The arc-shaped groove of the guiding mechanism in this application is formed on the support plate with the hinge point between the third hydraulic telescopic rod and the main load-bearing beam as the origin. The guide rod is inserted into the arc-shaped groove and fixedly connected to the cylinder of the third hydraulic telescopic rod. When the third hydraulic telescopic rod rotates around the hinge point, the guide rod moves along the arc-shaped groove, guiding the rotation of the third hydraulic telescopic rod, ensuring that its rotation process is smooth and stable, avoiding deviation or jamming, and improving the accuracy of angle adjustment.

[0019] The arc-shaped scale on the support plate corresponding to the outer side of the arc-shaped groove provides operators with an intuitive angle reference. By observing the position of the guide rod or the third hydraulic telescopic rod corresponding to the arc-shaped scale, operators can accurately determine the angle between the third hydraulic telescopic rod and the main load-bearing beam, facilitating precise angle adjustment and ensuring that the support angle of the support assembly meets operational requirements, thus improving operational accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an auxiliary support structure for a coal mine drilling rig.

[0021] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the angle adjustment mechanism.

[0023] In the picture:

[0024] 1. Load-bearing main beam; 2. Support assembly; 21. Connecting rod; 22. Second hydraulic telescopic rod; 221. Sphere; 23. Support platform; 3. Angle adjustment mechanism; 31. First hinge seat; 32. First hydraulic telescopic rod; 33. Second hinge seat; 4. Support plate; 5. Guide mechanism; 51. Arc groove; 52. Guide rod; 53. Bearing; 6. Arc scale. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] Example 1

[0027] This embodiment provides an auxiliary support structure for a coal mine drilling rig, such as... Figure 1-3 As shown, the auxiliary support structure includes a load-bearing main beam 1 for connection to a coal mine drilling rig and two support components 2 symmetrically hinged to the front side of the load-bearing main beam 1; it also includes an angle adjustment mechanism 3 for adjusting the angle between the support components 2 and the load-bearing main beam 1. The angle adjustment mechanism 3 includes a first hinge seat 31 fixedly installed in the middle of the front side of the load-bearing main beam 1 and two first hydraulic telescopic rods 32 symmetrically hinged to the front side of the first hinge seat 31. The output end of the first hydraulic telescopic rod 32 is hinged to a second hinge seat 33, which is connected to the support component 2. The mechanical automatic adjustment of the angle between the support component 2 and the load-bearing main beam 1 is achieved by extending and retracting the output end of the first hydraulic telescopic rod 32, replacing the traditional manual adjustment of the bolt group. This not only significantly improves the adjustment efficiency and reduces the time required for manual operation, but also avoids the inconvenience and safety risks that may be caused by manual operation in the complex environment of a coal mine, improving the overall safety and convenience of the operation. When the output end of the first hydraulic telescopic rod 32 extends, it pushes the support assembly 2 to rotate outward around the hinge point with the load-bearing main beam 1, increasing the angle between the support assembly 2 and the load-bearing main beam 1; when the output end of the first hydraulic telescopic rod 32 retracts, it pulls the support assembly 2 to rotate inward around the hinge point, decreasing the angle between the two, thereby achieving angle adjustment.

[0028] The support assembly 2 includes a connecting rod 21 hinged to the main load-bearing beam 1 and a second hydraulic telescopic rod 22 fixedly connected to the end of the connecting rod 21 away from the main load-bearing beam 1. The output end of the second hydraulic telescopic rod 22 is connected to a support platform 23 for contacting the ground. The connecting rod 21 in the support assembly 2 is hinged to the main load-bearing beam 1 and can be adjusted in angle using the angle adjustment mechanism 3. The second hydraulic telescopic rod 22 can extend and retract, causing the support platform 23 to contact or separate from the ground. This structure allows the support platform 23 to flexibly adapt to different ground heights, ensuring stable support for the coal mine drilling rig in various terrains, further enhancing the stability and reliability of the coal mine drilling rig when operating in complex terrain. The connecting rod 21 of the support assembly 2 is hinged to the main load-bearing beam 1 and can change its angle with the main load-bearing beam 1 under the action of the angle adjustment mechanism 3. When support is needed, the output end of the second hydraulic telescopic rod 22 extends, driving the support platform 23 to move downward until the support platform 23 contacts the ground, thereby providing support for the coal mine drilling rig; when support is not needed, the output end of the second hydraulic telescopic rod 22 retracts, driving the support platform 23 to move upward and detach from the ground.

[0029] To facilitate the adaptation of the support platform 23 to different ground inclinations, a ball groove is provided at the top of the support platform 23, and a ball 221 for fitting into the ball groove is fixedly connected to the output end of the second hydraulic telescopic rod 22. The ball groove at the top of the support platform 23 fits into the ball 221 at the output end of the second hydraulic telescopic rod 22, allowing the support platform 23 to rotate around the ball 221 at multiple angles. This design allows the support platform 23 to flexibly adapt to ground with different inclinations, ensuring full contact between the support platform 23 and the ground, increasing the support area, improving the stability of the support, and avoiding the problem of uneven force on the support platform 23 due to ground inclination affecting the support effect. Since the ball 221 can rotate freely in the ball groove, when the support platform 23 is placed on an inclined ground, under the action of its own weight and the ground reaction force, the support platform 23 will rotate around the ball 221 until the bottom of the support platform 23 is completely in contact with the inclined ground, thus realizing the adaptation of the support platform 23 to different ground inclinations.

[0030] To facilitate adjustment of the distance between the hinge point of the second hydraulic telescopic rod 22, the connecting rod 21, and the load-bearing main beam 1, the connecting rod 21 is a third hydraulic telescopic rod, with its cylinder hinged to the load-bearing main beam 1 and its output end fixedly connected to the cylinder of the second hydraulic telescopic rod 22. The extension and retraction of the third hydraulic telescopic rod allows for convenient adjustment of the distance between the hinge point of the second hydraulic telescopic rod 22, the connecting rod 21, and the load-bearing main beam 1. This allows for flexible variation in the overall length of the support assembly 2, further expanding the range of motion of the support platform 23, better adapting to different working environments and terrain requirements, and improving the versatility of the auxiliary support structure. The cylinder of the third hydraulic telescopic rod is hinged to the load-bearing main beam 1. When the output end of the third hydraulic telescopic rod extends, it moves the second hydraulic telescopic rod 22 away from the load-bearing main beam 1, increasing the distance between the second hydraulic telescopic rod 22 and the hinge point; when the output end of the third hydraulic telescopic rod retracts, it moves the second hydraulic telescopic rod 22 closer to the load-bearing main beam 1, decreasing the aforementioned distance, thus achieving distance adjustment.

[0031] To ensure the stability of the connection between the main load-bearing beam 1 and the third hydraulic telescopic rod, symmetrical support plates 4 are fixedly connected to the front side of the main load-bearing beam 1 to abut against the top and bottom of the third hydraulic telescopic rod. These symmetrically fixed support plates 4 abut against the top and bottom of the third hydraulic telescopic rod, providing additional support and restraint. This effectively enhances the stability of the connection between the third hydraulic telescopic rod and the main load-bearing beam 1, preventing the third hydraulic telescopic rod from swaying or shifting due to excessive force during operation, ensuring the overall structural stability of the support assembly 2, and extending the service life of the equipment. The support plates 4 are fixed to the front side of the main load-bearing beam 1. When the third hydraulic telescopic rod is adjusted in angle or bears a load, its top and bottom will contact the support plates 4. The support plates 4 will generate a reaction force on the third hydraulic telescopic rod, thereby limiting excessive swaying and providing stable support.

[0032] Example 2

[0033] Unlike Embodiment 1, to facilitate the rotation of the third hydraulic telescopic rod around the hinge point with the load-bearing main beam 1, a guiding mechanism 5 is also included. The guiding mechanism 5 includes an arc-shaped groove 51 formed on the support plate 4 with the hinge point of the third hydraulic telescopic rod and the load-bearing main beam 1 as its origin, and a guide rod 52 inserted into the arc-shaped groove 51 and fixedly connected to the cylinder of the third hydraulic telescopic rod. The arc-shaped groove 51 of the guiding mechanism 5 is formed on the support plate 4 with the hinge point of the third hydraulic telescopic rod and the load-bearing main beam 1 as its origin, and the guide rod 52 is inserted into the arc-shaped groove 51 and fixedly connected to the cylinder of the third hydraulic telescopic rod. When the third hydraulic telescopic rod rotates around the hinge point, the guide rod 52 moves along the arc-shaped groove 51, guiding the rotation of the third hydraulic telescopic rod, ensuring a smooth and stable rotation process, avoiding deviation or jamming, and improving the accuracy of angle adjustment. When the third hydraulic telescopic rod rotates around the hinge point with the load-bearing main beam 1 under the action of the angle adjustment mechanism 3, the guide rod 52, which is fixedly connected to the cylinder of the third hydraulic telescopic rod, will slide along the arc groove 51 on the support plate 4 as the third hydraulic telescopic rod rotates. The trajectory of the arc groove 51 restricts the movement direction of the guide rod 52, thereby providing guidance for the rotation of the third hydraulic telescopic rod.

[0034] To reduce wear between the guide rod 52 and the arc-shaped groove 51, a bearing 53 is fitted onto the guide rod 52 to fit the inner wall of the arc-shaped groove 51. The bearing 53 on the guide rod 52, fitting the inner wall of the arc-shaped groove 51, transforms the sliding friction between the guide rod 52 and the arc-shaped groove 51 into rolling friction, significantly reducing wear and resistance, making the movement of the guide rod 52 within the arc-shaped groove 51 smoother, and extending the service life of both the guide rod 52 and the support plate 4. When the guide rod 52 moves along the arc-shaped groove 51, the outer ring of the bearing 53 on the guide rod 52 contacts and rolls against the inner wall of the arc-shaped groove 51, thus converting the sliding friction between the guide rod 52 and the arc-shaped groove 51 into rolling friction, reducing the coefficient of friction and minimizing wear.

[0035] To facilitate precise adjustment of the angle between the third hydraulic telescopic rod and the main load-bearing beam 1, an arc-shaped scale 6 is provided on the support plate 4 at the outer position corresponding to the arc-shaped groove 51. This arc-shaped scale 6 on the support plate 4 provides an intuitive angle reference for the operator. By observing the position of the guide rod 52 or the arc-shaped scale 6 corresponding to the third hydraulic telescopic rod, the operator can accurately determine the angle between the third hydraulic telescopic rod and the main load-bearing beam 1, facilitating precise angle adjustment and ensuring that the support angle of the support assembly 2 meets operational requirements, thus improving operational accuracy. The arc-shaped scale 6 is centered at the hinge point between the third hydraulic telescopic rod and the main load-bearing beam 1. When the third hydraulic telescopic rod rotates around the hinge point, the operator can directly read the angle between the third hydraulic telescopic rod and the main load-bearing beam 1 based on the value of the arc-shaped scale 6 corresponding to the position of the guide rod 52 within the arc-shaped groove 51, thereby achieving precise angle adjustment.

[0036] The control method of this application is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0037] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0038] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An auxiliary support structure for a coal mine drilling rig, comprising a load-bearing main beam (1) for connection with the coal mine drilling rig and two support components (2) symmetrically hinged to the front side of the load-bearing main beam (1). It also includes an angle adjustment mechanism (3) for adjusting the angle between the support component (2) and the load-bearing main beam (1); Its features are: The angle adjustment mechanism (3) includes a first hinge seat (31) fixedly installed in the middle of the front side of the load-bearing main beam (1) and two first hydraulic telescopic rods (32) symmetrically hinged in front of the first hinge seat (31). The output end of the first hydraulic telescopic rod (32) is hinged to a second hinge seat (33), and the second hinge seat (33) is connected to the support assembly (2).

2. The auxiliary support structure for a coal mine drilling rig according to claim 1, characterized in that: The support assembly (2) includes a connecting rod (21) hinged to the load-bearing main beam (1) and a second hydraulic telescopic rod (22) fixedly connected to one end of the connecting rod (21) away from the load-bearing main beam (1). The output end of the second hydraulic telescopic rod (22) is connected to a support platform (23) for contacting the ground.

3. The auxiliary support structure for a coal mine drilling rig according to claim 2, characterized in that: The top of the support platform (23) is provided with a ball groove, and the output end of the second hydraulic telescopic rod (22) is fixedly connected to a ball (221) for fitting the ball groove.

4. The auxiliary support structure for a coal mine drilling rig according to claim 2, characterized in that: The connecting rod (21) is the third hydraulic telescopic rod, and the cylinder of the third hydraulic telescopic rod is hinged to the load-bearing main beam (1), and the output end is fixedly connected to the cylinder of the second hydraulic telescopic rod (22).

5. The auxiliary support structure for a coal mine drilling rig according to claim 4, characterized in that: The front side of the load-bearing main beam (1) is symmetrically fixedly connected with support plates (4) for abutting against the top and bottom of the third hydraulic telescopic rod.

6. The auxiliary support structure for a coal mine drilling rig according to claim 5, characterized in that: It also includes a guide mechanism (5), which includes an arc-shaped groove (51) opened on the support plate (4) with the hinge point between the third hydraulic telescopic rod and the load-bearing main beam (1) as the origin, and a guide rod (52) inserted into the arc-shaped groove (51) and fixedly connected to the cylinder of the third hydraulic telescopic rod.

7. The auxiliary support structure for a coal mine drilling rig according to claim 6, characterized in that: The guide rod (52) is fitted with a bearing (53) for fitting into the inner wall of the arc groove (51).

8. The auxiliary support structure for a coal mine drilling rig according to claim 6, characterized in that: The support plate (4) is provided with an arc-shaped scale (6) at the outer position corresponding to the arc-shaped groove (51).

Images