A tool for milling holes of scraper and chain plates of bolt digger

Abstract

The present invention belongs to the field of milling processing of scraper chains of anchor miners, and in particular relates to a milling tool for scraper chains of anchor miners, comprising a base, a milling table and a frame provided on the upper side of the base, two groups of milling components provided below the frame, a movable frame provided on the frame, a clamping mechanism provided between the upper side of the milling table and the movable frame, a spacing adjustment component provided on the movable frame for adjusting the relative distance between the two groups of milling components, and a rotating mechanism provided on the spacing adjustment component. The clamping mechanism comprises a fixed frame fixedly provided on the upper side of the milling table, a plurality of groups of clamping components distributed left and right provided on the fixed frame, and a front-to-back symmetrical driving frame provided on the movable frame. The present invention avoids the problem in traditional tooling that when all chain plates are fixed at the same time, the vibration generated by milling is transmitted through the table surface, causing other locked chain plates to loosen. The position accuracy and aperture size accuracy of subsequent milling holes are ensured, thereby improving the overall milling quality.

Description

Technical Field

[0001] The invention belongs to the field of milling holes of scraper and chain plates of bolter miners, and in particular relates to a tool for milling holes of scraper and chain plates of bolter miners. Background Art

[0002] As integrated equipment for tunneling and support in coal mines, the bolter miner's scraper conveyor system is a key component for material transportation. The scraper chain, a core component of the system, relies on the precision of its connection holes, which directly impacts the chain's operational stability and reliability. Failure to meet hole position and diameter standards can lead to uneven chain force during operation, causing chain skipping and breakage, which can severely impact coal mining efficiency and production safety.

[0003] Currently, the following defects exist in the machining process of the scraper chain milling tooling for anchor miners: 1) When loading the scraper chain of the anchor miner, multiple chains are typically placed on a milling table. After all the chains are fixed, the milling head mills holes according to a predetermined route. However, during the actual milling process, the high-speed rotation of the milling head and the continuous changes in cutting force cause strong vibrations to the entire milling table. This vibration is transmitted through the milling table to the chain plates that have been clamped and fixed but have not yet been milled. As the milling operation continues, the vibration accumulates, causing the friction between the chain plates and the clamping mechanism to gradually decrease, leading to loosening. The later the chain plates are milled, the longer they are affected by the vibration and the more severe the loosening. This greatly affects the accuracy of the subsequent milling head's position and hole size for these chain plates, ultimately reducing the quality of the milled holes.

[0004] 2) When milling holes in the bolter scraper chain, spiral milling is typically used. This method uses a milling head that moves in coordinated X, Y, and Z axes under the precise control of a control system. However, this process requires extremely high control system precision, as any slight control deviation will be amplified in the chain's three-dimensional spatial position, causing the milled connection hole to deviate from the design requirements. Existing control systems are often limited by factors such as sensor accuracy, control algorithm complexity, and response speed, making it difficult to maintain high-precision control during high-speed milling.

[0005] Therefore, there is an urgent need for a milling tool for the scraper chain plate of an anchor miner to solve the defects existing in the milling of the scraper chain plate of the anchor miner. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a scraper chain plate milling tool for an anchor miner, which is used to solve the problems mentioned in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: The present invention provides a scraper chain plate milling tool for an anchor mining machine, comprising a base, a milling table and a frame are provided on the upper side of the base, two groups of milling components are provided below the frame, a movable frame is provided on the frame, a clamping mechanism is provided between the upper side of the milling table and the movable frame, a spacing adjustment component for adjusting the relative distance between the two groups of milling components is provided on the movable frame, and a rotating mechanism is provided on the spacing adjustment component. The clamping mechanism includes a fixed frame fixedly provided on the upper side of the milling table, a plurality of groups of clamping components distributed on the left and right are provided on the fixed frame, and a front-to-back symmetrical driving frame is provided on the movable frame. The rotating mechanism includes two rotating shafts both connected to the spacing adjustment components, a driving part is provided between the upper ends of the two rotating shafts and the spacing adjustment components, a turntable is fixedly provided on the lower end of the rotating shaft, and a radial adjustment component is provided on the lower side of the turntable. The movable frame controls the movement of the milling assembly while driving the movement of the driving frame. The movement of the driving frame controls the action of the corresponding clamping assembly, and automatically fixes the chain plate to be milled placed on the milling table; the clamping mechanism is used to intermittently drive the milling assembly to radially expand the hole outward with the center position of the milling hole on the chain plate as the circle point, and drives the milling assembly to rotate through the rotating shaft to circumferentially expand the center position of the chain plate milling hole.

[0008] According to a favorable embodiment, the frame includes a driving screw that is rotatably arranged on the upper side of the base through an ear seat, a movable seat is threadedly connected to the driving screw, the movable seat is slidably arranged on the upper side of the base, a machine platform is fixedly arranged on the movable seat through a column, one end of the driving screw is fixedly connected to a motor, and the motor is fixedly arranged on the corresponding ear seat.

[0009] According to a favorable embodiment, the movable frame includes an electric push rod fixedly arranged on the upper side of the machine platform, the telescopic end of the electric push rod movably passes through the machine platform and is fixedly connected to the connecting horizontal plate 1, and two connecting vertical plates symmetrical front and back are fixedly arranged on the lower side of the connecting horizontal plate 1, and the lower ends of the two connecting vertical plates are jointly fixedly connected to the horizontal plate 2.

[0010] According to a favorable embodiment, the clamping assembly includes two clamping plates that are slidably arranged on the upper side of the milling table and are symmetrical on the left and right. A sliding column is provided on the side of the two corresponding left and right clamping plates that are away from each other. The sliding column is slidably connected to the fixed frame. A U-shaped mounting plate is fixedly provided on the left and right sides of the fixed frame. The U-shaped mounting plate corresponds one-to-one to the sliding column on the same side. A clamping screw is rotatably provided on the side of the two corresponding left and right U-shaped mounting plates that are away from each other. The clamping screw is threadedly connected to the corresponding sliding column.

[0011] According to a favorable embodiment, the clamping assembly also includes two groups of diagonal support plates fixedly arranged on the outside of the fixed frame and symmetrically arranged front and back, and a rectangular guide plate is commonly provided between the two diagonal support plates of the same group, and a rack is slidably inserted on the guide plate. A transmission gear is fixedly provided at one end of the clamping screw, and the transmission gear is engaged with the corresponding rack. A drive sleeve is also slidably inserted on the guide plate, and a compression spring is commonly fixedly provided between one side of the drive sleeve and one side of the rack, and a return spring is commonly fixedly provided between the other side of the rack and the corresponding diagonal support plate, and the compression spring and the return spring are both sleeved on the corresponding guide plate.

[0012] According to a favorable embodiment, the drive frame is fixedly arranged on the second connecting horizontal plate, and a push bar is fixedly arranged on the lower side of the drive frame, the push bar is movably in contact with the drive sleeve, and a movable hole extending along its length direction is opened on the upper side of the guide plate, and the push bar is movably arranged in the movable hole.

[0013] According to a favorable embodiment, the spacing adjustment assembly includes two adjusting screws 1, and the two adjusting screws 1 are respectively rotatably arranged on the left and right sides of the connecting cross plate 2 through the ear seat 2, and two front-to-back symmetrical and U-shaped slides are slidably arranged on the connecting cross plate 2, and the slides are threadedly connected to the two adjusting screws 1, and the threaded connection directions of the two slides and the adjusting screw 1 are opposite, and the rear ends of the two adjusting screws 1 are jointly connected through a sprocket set, and the front end of one of the adjusting screws 1 is fixedly connected to the motor 2, and the motor 2 is fixedly arranged on the connecting cross plate 2, and a sliding hole extending along its length direction is opened on the upper side of the connecting cross plate 2, and a connecting slider is slidably arranged in the sliding hole, the upper side of the connecting slider is fixedly connected to the corresponding slide, and the lower side of the connecting slider is rotatably connected to the corresponding rotating shaft.

[0014] According to a favorable embodiment, the driving part includes a connecting shaft 1 rotatably arranged on the upper side of the slide, the lower end of the connecting shaft 1 movably passes through the slide and is fixedly connected to the corresponding rotating shaft, a side plate is also fixedly arranged on the upper side of the slide, and a connecting shaft 2 is rotatably arranged on the side plate, and bevel gears are fixedly arranged on the connecting shaft 1 and the connecting shaft 2, and the two bevel gears are meshed with each other. A driving shaft is rotatably arranged between the two connecting vertical plates, and the driving shaft and the two connecting shafts 2 are both connected for transmission by spline connection. The driving shaft is movably plugged into the two bevel gears above, and one end of the driving shaft is fixedly connected to a motor 3, and the motor 3 is fixedly arranged on one of the connecting vertical plates.

[0015] According to a favorable embodiment, the radial adjustment assembly includes a fixed seat fixedly arranged on the lower side of the turntable, a sliding groove is opened on the lower side of the fixed seat, an adjusting screw 2 is rotatably arranged in the sliding groove, an adjusting seat is threaded on the adjusting screw 2, the lower side of the adjusting seat is connected to the milling hole assembly, one end of the adjusting screw 2 is fixedly connected to the motor 4, and the motor 4 is fixedly arranged on one side of the fixed seat.

[0016] According to an advantageous embodiment, the milling assembly comprises a milling motor fixedly connected to the lower side of the adjusting seat, and the output shaft of the milling motor is fixedly connected to the milling cutter head.

[0017] Compared with the prior art, the embodiment of the present invention provides a scraper chain milling tool for an anchor miner, which has the following beneficial effects: 1. In the present invention, multiple scraper chains on the milling table are locked one by one through the cooperation of the movable frame, the driving frame and the clamping assembly; during the milling process, only the chain plate being processed is clamped, and the remaining chain plates are in a relaxed state, thereby avoiding the problem that when all the chain plates in the traditional tool are fixed at the same time, the vibration generated by the milling hole is transmitted through the table surface, causing other locked chain plates to loosen; the chain plates further back will no longer experience clamping failure due to long-term vibration, thereby ensuring the position accuracy and aperture size accuracy of subsequent milling holes, and improving the overall milling quality.

[0018] 2. In the present invention, the milling cutter head revolves through a rotary mechanism while rotating on its own, and performs timed intermittent radial expansion through a radial adjustment component, thereby reducing the complexity of the traditional spiral milling for the coordinated control of the XYZ three axes and improving the processing efficiency; the entire milling hole adopts a staged hole expansion design, that is, first positioning the center and then gradually expanding the aperture, further ensuring the geometric accuracy and surface quality of the hole position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the external structure of the present invention when equipped with a dust cover.

[0020] Figure 2 This is a three-dimensional diagram of the external structure of the present invention after removing the dust cover.

[0021] Figure 3 It is a schematic diagram of the relative positions of the milling table, clamping mechanism and milling assembly in the present invention.

[0022] Figure 4 for Figure 3 Enlarged three-dimensional structure diagram of the local structure.

[0023] Figure 5 It is an external three-dimensional structural diagram of the movable frame and the rotating mechanism in the present invention.

[0024] Figure 6 This is a bottom-up three-dimensional structural diagram of the turntable of the present invention.

[0025] Reference numerals in the figure: 1, base; 2, milling table; 3, frame; 31, driving screw; 32, moving base; 33, machine table; 4, milling assembly; 5, movable frame; 51, electric push rod; 52, connecting horizontal plate 1; 53, connecting vertical plate; 54, connecting horizontal plate 2; 6, clamping mechanism; 61, fixed frame; 62, clamping assembly; 621, clamping plate; 622, sliding column; 623, U-shaped mounting plate; 624, pressing screw; 625, diagonal support plate; 626, guide plate; 62 7. Rack; 628. Transmission gear; 629. Drive sleeve; 630. Compression spring; 631. Return spring; 63. Drive frame; 64. Push bar; 7. Spacing adjustment assembly; 71. Adjusting screw 1; 72. Slide seat; 73. Connecting slider; 8. Rotating mechanism; 81. Rotating shaft; 82. Drive unit; 821. Bevel gear; 822. Drive shaft; 83. Turntable; 84. Radial adjustment assembly; 841. Fixed seat; 842. Adjusting screw 2; 843. Adjusting seat. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0027] Please refer to Figure 1-Figure 3 A scraper chain milling tool for an anchor miner includes a base 1. A milling table 2 and a frame 3 are provided on the upper side of the base 1. Two sets of milling components 4 are provided below the frame 3. A movable frame 5 is provided on the frame 3. A clamping mechanism 6 is provided between the upper side of the milling table 2 and the movable frame 5. The clamping mechanism 6 includes a fixed frame 61 fixed to the upper side of the milling table 2. The fixed frame 61 is provided with multiple sets of clamping components 62 distributed left and right. The movable frame 5 is provided with a front-to-back symmetrical driving frame 63. The staff places the scraper chains at different positions within the fixed frame 61 on the upper side of the milling table 2. The frame 3 is driven to move by the movable frame 5. When the frame 3 and the milling components 4 move under each scraper chain, the corresponding scraper chain is automatically locked by the driving frame 63 and the clamping component 62.

[0028] See Figure 1 and Figure 2 The frame 3 includes a drive screw 31 that is rotatably mounted on the upper side of the base 1 via an ear seat 1. A movable seat 32 is threadedly connected to the drive screw 31. The movable seat 32 is slidably mounted on the upper side of the base 1. A machine platform 33 is fixedly mounted on the movable seat 32 via a column. One end of the drive screw 31 is fixedly connected to a motor 1, which is fixed to the corresponding ear seat 1. The motor 1 controls the rotation of the drive screw 31, driving the movable seat 32 to move left and right to adjust the position of the milling assembly 4.

[0029] See Figure 2 and Figure 3The movable frame 5 includes an electric push rod 51 fixedly mounted on the upper side of the machine platform 33. The telescopic end of the electric push rod 51 movably penetrates the machine platform 33 and is fixedly connected to a first connecting horizontal plate 52. Two symmetrical connecting vertical plates 53 are fixedly mounted on the lower side of the first connecting horizontal plate 52. The lower ends of the two connecting vertical plates 53 are fixedly connected to a second connecting horizontal plate 54. The electric push rod 51 drives the second connecting horizontal plate 54 to move up and down, thereby controlling the vertical movement of the milling assembly 4 and the drive frame 63 below.

[0030] See Figure 3 and Figure 4 The clamping assembly 62 includes two symmetrical clamping plates 621 slidably disposed on the upper side of the milling table 2. A sliding post 622 is provided on each side of the two corresponding clamping plates 621 facing away from each other. The sliding post 622 is slidably connected to the fixed frame 61. A U-shaped mounting plate 623 is fixedly provided on both the left and right sides of the fixed frame 61. The U-shaped mounting plate 623 corresponds one-to-one with the sliding post 622 on the same side. A pressing screw 624 is rotatably provided on each side of the two corresponding U-shaped mounting plates 623 facing away from each other. The pressing screw 624 is threadedly connected to the corresponding sliding post 622. By driving the pressing screw 624 to rotate, the sliding post 622 is driven to move, thereby controlling the clamping plate 621 to contact and clamp the corresponding scraper chain.

[0031] See Figure 3 and Figure 4 The clamping assembly 62 also includes two groups of diagonal support plates 625 fixedly arranged on the outside of the fixed frame 61 and symmetrically arranged front and back. A rectangular guide plate 626 is commonly provided between the two diagonal support plates 625 of the same group. A rack 627 is slidably inserted on the guide plate 626. A transmission gear 628 is fixedly provided at one end of the compression screw 624, and the transmission gear 628 is engaged with the corresponding rack 627. A driving sleeve 629 is also slidably inserted on the guide plate 626. A compression spring 630 is commonly fixedly provided between one side of the driving sleeve 629 and one side of the rack 627, and a return spring 631 is commonly fixedly provided between the other side of the rack 627 and the corresponding diagonal support plate 625. The compression spring 630 and the return spring 631 are both sleeved on the corresponding guide plate 626. The driving frame 63 is fixedly set on the connecting horizontal plate 54, and a push bar 64 is fixedly set on the lower side of the driving frame 63. The push bar 64 movably contacts the driving sleeve 629. A movable hole extending along the length direction of the guide plate 626 is opened on the upper side, and the push bar 64 is movably set in the movable hole.

[0032] During specific operation, in order to clamp the multiple scraper chains on the milling table 2 one by one, the connecting cross plate 2 54 will synchronously drive the driving frame 63 to move when it moves through the moving seat 32, and the pushing bar 64 on the driving frame 63 will move toward the corresponding driving sleeve 629 to resist, thereby pushing the driving sleeve 629 to move along the guide plate 626, and the driving sleeve 629 will push the rack 627 to move along the guide plate 626 through the compression spring 630. The movement of the rack 627 will drive the transmission gear 628 to rotate and drive the compression screw 624 to rotate, controlling the front and rear clamps 621 to approach, and clamping the scraper chain between the front and rear clamps 621 until the connecting cross plate 2 54 moves to the specified position and stops. At this time, the scraper chains under the two milling components 4 are locked, and the remaining scraper chains on the milling table 2 are in a relaxed state, and only the scraper chains being processed are locked. After the processing is completed, the push bar 64 will move up to a certain height and be offset from the drive sleeve 629. The rack 627 will drive the transmission gear 628 to rotate in the opposite direction and reset under the action of the reset spring 631. The processed scraper chain is unlocked, and then the push bar 64 passes over the drive sleeve 629 and moves down to reset and move towards the next drive sleeve 629. Repeat the operation.

[0033] See Figure 3 、 Figure 5 and Figure 6 The connecting cross plate 54 is provided with a spacing adjustment assembly 7 for adjusting the relative distance between the two sets of milling hole assemblies 4. The spacing adjustment assembly 7 includes two adjusting screws 71, which are respectively rotatably arranged on the left and right sides of the connecting cross plate 54 through the ear seat 2. Two front-to-back symmetrical and U-shaped slides 72 are slidably arranged on the connecting cross plate 54. The slides 72 are threadedly connected to the two adjusting screws 71, and the threaded connection directions of the two slides 72 and the adjusting screws 71 are opposite. The rear ends of the two adjusting screws 71 are jointly connected by a sprocket set (not shown in the figure), and the front end of one of the adjusting screws 71 is fixedly connected to the motor 2, which is fixedly arranged on the connecting cross plate 54. The upper side of the connecting cross plate 54 is provided with a sliding hole extending along its length direction. A connecting slider 73 is slidably arranged in the sliding hole. The upper side of the connecting slider 73 is fixedly connected to the corresponding slider 72. Two symmetrical pin mounting holes need to be opened on the scraper chain. The corresponding adjusting screw 1 71 is driven to rotate by motor 2, and the two slides 72 move relative to each other at the same time with the cooperation of the sprocket group, and the positions of the two milling hole assemblies 4 are adjusted to correspond to the two pin mounting holes on the scraper chain.

[0034] See Figure 3 and Figure 5The lower sides of the two connecting sliders 73 are commonly connected to a rotating mechanism 8. The rotating mechanism 8 includes two rotating shafts 81. The upper ends of the rotating shafts 81 are rotatably connected to the lower sides of the corresponding connecting sliders 73. A driving unit 82 is commonly provided between the upper ends of the two rotating shafts 81 and the spacing adjustment assembly 7. A rotating disk 83 is fixedly provided at the lower ends of the rotating shafts 81, and a radial adjustment assembly 84 is provided on the lower side of the rotating disk 83. The driving unit 82 drives the two rotating shafts 81 to rotate simultaneously, so that the lower rotating disk 83 can drive the milling assembly 4 to rotate with the center of the rotating disk 83 as the midpoint. At the same time, the radial adjustment assembly 84 is used to adjust the distance between the milling assembly 4 and the center of the rotating disk 83, thereby intermittently adjusting the diameter of the milled hole.

[0035] See Figure 5 and Figure 6 The radial adjustment assembly 84 includes a fixed seat 841 fixedly mounted on the lower side of the turntable 83. A slide groove is defined on the lower side of the fixed seat 841. An adjustment screw 842 is rotatably mounted within the slide groove. An adjustment seat 843 is threadedly mounted on the adjustment screw 842. The lower side of the adjustment seat 843 is connected to the milling assembly 4. One end of the adjustment screw 842 is fixedly connected to a motor 4 (not shown in the figure). The motor 4 is fixedly mounted on one side of the fixed seat 841. The milling assembly 4 includes a milling motor fixedly connected to the lower side of the adjustment seat 843. The output shaft of the milling motor is fixedly connected to a milling cutter head. The adjustment screw 842 is driven by the motor 4 to rotate, thereby driving the adjustment seat 843 to move, thereby driving the milling assembly 4 below to move.

[0036] During specific work, in order to reduce the difficulty of milling hole control while ensuring the accuracy of milling hole, the spacing between the two milling cutter heads is pre-adjusted through the spacing adjustment component 7, so that when the milling cutter head moves to the top of the locked scraper chain, the axis of the two rotating shafts 81 is aligned with the center of the position to be milled on the scraper chain, and then the milling cutter head moves down and rotates. The milling cutter head is driven by its own milling motor to rotate at high speed, and at the same time, the turntable 83 drives the milling cutter head to revolve. During the milling process, the milling cutter head can move radially relative to the turntable 83, and the milling cutter head continuously moves outward from the original center position of the turntable 83 to expand the hole. During the entire milling process, while the milling cutter head rotates, it only needs to control the circumferential revolution of the milling cutter head, and as the milling continues, the diameter of the milling cutter head's revolution is regularly expanded outward to finally complete the milling hole.

[0037] See Figure 5The driving portion 82 includes a connecting shaft 1 rotatably mounted on the upper side of the slide 72. The lower end of the connecting shaft 1 movably passes through the slide 72 and is fixedly connected to the corresponding rotating shaft 81. A side plate is also fixedly mounted on the upper side of the slide 72, on which a connecting shaft 2 is rotatably mounted. Bevel gears 821 are fixedly mounted on both the connecting shaft 1 and the connecting shaft 2. The two bevel gears 821 mesh with each other. A driving shaft 822 is rotatably mounted between the two connecting vertical plates 53. The driving shaft 822 is transmission-connected to the two connecting shafts 2 by a spline connection. The driving shaft 822 is movably plugged into the two upper bevel gears 821. One end of the driving shaft 822 is fixedly connected to a motor 3, which is fixed to one of the connecting vertical plates 53. The rotation of the driving shaft 822 is controlled by the motor 3, thereby driving the corresponding rotating shaft 81 to rotate through the two meshing bevel gears 821.

[0038] The entire tooling process is as follows: the entire movable frame 5 and the clamping mechanism 6 are partially covered with dust covers for dust protection. The milling cutter heads on the two milling components 4 are pre-adjusted to the corresponding parameters according to the spacing between the two holes to be milled on the scraper chain. During operation, the staff places the scraper chain in the predetermined position on the milling table 2, so that each scraper chain is between the front and rear clamping plates 621. Then the movable frame 5 moves, causing the milling cutter heads and the push bar 64 to move simultaneously. At this time, the two milling cutter heads are at the center position of the two holes to be processed on the scraper chain. During the movement, the push bar 64 cooperates with the clamping assembly 62 to lock the scraper chain directly below the milling cutter heads. Then, the scraper chain is milled by the electric push rod 51 in conjunction with the milling cutter heads. The milling cutter heads rotate while being driven by the turntable 83 to work. Initially, the turntable 83 and the milling cutter heads are at the same center position. The radial adjustment assembly 84 gradually moves outward to achieve hole expansion. After the milling is completed, the milling cutter head is reset and moved upward, and then moved to the next scraper chain and repeated the operation.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bolter miner scraper chain plate milling tool, including a base, characterized by: A milling table and a frame are provided on the upper side of the base, two sets of milling components are provided below the frame, a movable frame is provided on the frame, a clamping mechanism is provided between the upper side of the milling table and the movable frame, a spacing adjustment component for adjusting the relative distance between the two sets of milling components is provided on the movable frame, and a rotating mechanism is provided on the spacing adjustment component; The clamping mechanism includes a fixed frame fixedly arranged on the upper side of the milling table, a plurality of groups of clamping components distributed left and right are arranged on the fixed frame, and a front-to-back symmetrical driving frame is arranged on the movable frame; The rotating mechanism includes two rotating shafts connected to the spacing adjustment assembly, a driving portion is commonly provided between the upper ends of the two rotating shafts and the spacing adjustment assembly, a rotating disk is fixedly provided at the lower ends of the rotating shafts, and a radial adjustment assembly is provided on the lower side of the rotating disk; The movable frame controls the movement of the milling assembly and drives the driving frame to move at the same time. The movement of the driving frame controls the movement of the corresponding clamping assembly, and automatically fixes the chain plate to be milled placed on the milling table; the clamping mechanism is used to intermittently drive the milling assembly to radially expand the hole outward with the center position of the milling hole on the chain plate as the circle point, and drives the milling assembly to rotate through the rotating shaft to circumferentially expand the center position of the milling hole on the chain plate; The clamping assembly includes two clamping plates slidably arranged on the upper side of the milling table and symmetrically on the left and right sides, and a sliding column is provided on the side of the two corresponding clamping plates away from each other. The sliding column is slidably connected to the fixed frame, and a U-shaped mounting plate is fixedly provided on the left and right sides of the fixed frame. The U-shaped mounting plate corresponds to the sliding column on the same side one by one, and a compression screw is rotatably provided on the side of the two corresponding U-shaped mounting plates away from each other, and the compression screw is threadedly connected to the corresponding sliding column; The clamping assembly also includes two groups of diagonal support plates fixedly arranged on the outside of the fixed frame and symmetrically arranged front and back, a rectangular guide plate is commonly provided between the two diagonal support plates of the same group, a rack is slidably inserted on the guide plate, one end of the compression screw is fixedly provided with a transmission gear, the transmission gear is meshed with the corresponding rack, a driving sleeve is also slidably inserted on the guide plate, a compression spring is commonly fixedly provided between one side of the driving sleeve and one side of the rack, a return spring is commonly fixedly provided between the other side of the rack and the corresponding diagonal support plate, and the compression spring and the return spring are both sleeved on the corresponding guide plate; The driving frame is fixedly arranged on the second connecting horizontal plate, and a push bar is fixedly arranged on the lower side of the driving frame, the push bar is movably in contact with the driving sleeve, and a movable hole extending along the length direction of the guide plate is opened on the upper side, and the push bar is movably arranged in the movable hole.

2. The bolt miner scraper chain plate milling tool according to claim 1, characterized in that: The frame includes a driving screw that is rotatably arranged on the upper side of the base through an ear seat, a movable seat is threadedly connected to the driving screw, the movable seat is slidably arranged on the upper side of the base, a machine platform is fixedly arranged on the movable seat through a column, one end of the driving screw is fixedly connected to a motor, and the motor is fixedly arranged on the corresponding ear seat.

3. The bolt miner scraper chain plate milling tool according to claim 2, characterized in that: The movable frame includes an electric push rod fixedly arranged on the upper side of the machine platform. The telescopic end of the electric push rod movably passes through the machine platform and is fixedly connected to a connecting horizontal plate 1. Two connecting vertical plates symmetrical front and back are fixedly arranged on the lower side of the connecting horizontal plate 1. The lower ends of the two connecting vertical plates are jointly fixedly connected to the horizontal plate 2.

4. The bolt miner scraper chain plate milling tool according to claim 3, characterized in that: The spacing adjustment assembly includes two adjusting screws 1, and the two adjusting screws 1 are respectively rotatably arranged on the left and right sides of the connecting cross plate 2 through the ear seat 2. Two front-to-back symmetrical and U-shaped slides are slidably provided on the connecting cross plate 2. The slides are threadedly connected to the two adjusting screws 1, and the threaded connection directions of the two slides and the adjusting screw 1 are opposite. The rear ends of the two adjusting screws 1 are jointly connected through a sprocket set, and the front end of one of the adjusting screws 1 is fixedly connected to the motor 2, and the motor 2 is fixedly set on the connecting cross plate 2. The connecting cross plate 2 is provided with a sliding hole extending along its length direction, and a connecting slider is slidably provided in the sliding hole. The upper side of the connecting slider is fixedly connected to the corresponding slide, and the lower side of the connecting slider is rotatably connected to the corresponding rotating shaft.

5. The bolt miner scraper chain plate milling tool according to claim 4, characterized in that: The driving part includes a connecting shaft 1 rotatably arranged on the upper side of the slide, the lower end of the connecting shaft 1 movably passes through the slide and is fixedly connected to the corresponding rotating shaft, a side plate is also fixedly arranged on the upper side of the slide, and a connecting shaft 2 is rotatably arranged on the side plate, and bevel gears are fixedly arranged on the connecting shaft 1 and the connecting shaft 2, and the two bevel gears are meshed with each other. A driving shaft is rotatably arranged between the two connecting vertical plates, and the driving shaft and the two connecting shafts 2 are transmission connected by spline connection. The driving shaft is movably plugged into the two bevel gears above, and one end of the driving shaft is fixedly connected to a motor 3, and the motor 3 is fixedly arranged on one of the connecting vertical plates.

6. The bolt miner scraper chain plate milling tool according to claim 1, characterized in that: The radial adjustment assembly includes a fixed seat fixedly arranged on the lower side of the turntable, a sliding groove is opened on the lower side of the fixed seat, an adjusting screw rod 2 is rotatably arranged in the sliding groove, an adjusting seat is threaded on the adjusting screw rod 2, the lower side of the adjusting seat is connected to the milling hole assembly, one end of the adjusting screw rod 2 is fixedly connected to the motor 4, and the motor 4 is fixedly arranged on one side of the fixed seat.

7. The bolter miner scraper chain plate milling tool according to claim 6, characterized in that: The milling assembly comprises a milling motor fixedly connected to the lower side of the adjustment seat, and the output shaft of the milling motor is fixedly connected to the milling cutter head.

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