Excavator track rapid milling machine tool and method thereof

Abstract

The invention relates to the technical field of milling, and discloses an excavator track rapid milling machine tool and a method thereof.The excavator track rapid milling machine tool comprises a tool body and a hydraulic cylinder installed at one end of the tool body, a connecting frame is installed at the lower end of the hydraulic cylinder, and the lower end of the connecting frame is rotationally connected with a milling belt; and a plurality of extrusion devices are arranged in the milling belt, and each extrusion device comprises a first piston cylinder installed at one end of the connecting frame. Liquid in the first piston cylinder pushes the first piston columns to slide downwards, the first piston columns push the milling belt downwards to deform, and therefore the first piston columns are used for changing the shape of the lower end of the milling belt, and the shape of the lower end of the milling belt is matched with the upper end face of a part; in this way, the changed milling belt can mill the upper end face of the part, so that the milling belt is automatically adjusted to be matched with the upper end face of the part, automatic milling is achieved, and the milling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of milling, and specifically to a rapid milling machine tool for excavator crawlers and its method. Background Art

[0002] A crawler is a flexible chain ring driven by a driving wheel and surrounding the driving wheel, idler wheels, guide wheels and carrying wheels. The crawler is composed of crawler plates and crawler pins, etc. The crawler pins connect the crawler plates to form a crawler chain ring. There are holes at both ends of the crawler plate to mesh with the driving wheel. There are guiding teeth in the middle to straighten the crawler and prevent the crawler from falling off when the tank turns or drives sideways. There are reinforcing anti-slip ribs on the side in contact with the ground to improve the firmness of the crawler plate and the adhesion between the crawler and the ground.

[0003] Due to the uneven shape of the crawler, when the existing excavator crawler needs to be milled, it can only be milled manually, so the milling efficiency is low, or a five-axis numerical control machine tool is used for milling, but the milling cost is high, and the crawler size does not require too high precision. Therefore, the existing excavator crawler milling device cannot quickly mill the excavator crawler. Summary of the Invention

[0004] The present invention provides a rapid milling machine tool for excavator crawlers and its method, which solves the problem that the existing milling machine tool cannot quickly mill the crawler mentioned in the above background art.

[0005] The present invention provides the following technical solution: A rapid milling machine tool for excavator crawlers includes a machine body and a hydraulic cylinder installed at one end of the machine body. A connecting frame is installed at the lower end of the hydraulic cylinder. A milling belt is rotatably connected to the lower end of the connecting frame. A number of extrusion devices are arranged inside the milling belt. The extrusion device includes a first piston cylinder installed at one end of the connecting frame. A first piston rod is slidably connected to the lower end of the first piston cylinder. The first piston rod is used to extrude the lower end of the milling belt to deform. A drive shaft is also rotatably connected inside the connecting frame. A number of first telescopic columns are installed on the outer surface of the drive shaft. A transmission plate is installed at one end of the first telescopic column. The transmission plate abuts against the milling belt. A number of trigger devices are sequentially arranged on the outer surface of the connecting frame. The trigger device includes a square frame installed on the outer surface of the connecting frame. A first trapezoidal column and a second trapezoidal column are slidably connected to both sides of the square frame. Two cavities are arranged inside the square frame. The first trapezoidal column and the second trapezoidal column are respectively slidably connected inside the cavities. One end of each of the two cavities is respectively provided with a first pipe and a second pipe. The first pipe and the second pipe are used to squeeze the liquid stored in each cavity into the inside of the first piston cylinder.

[0006] As an alternative solution of the excavator track rapid milling machine described in the present invention, wherein: a pressing plate is installed at the lower end of the first piston column, and the pressing plate is used to extrude the deformation of the lower end of the milling belt; A dust suction device is further installed at the lower end of the connecting frame. The dust suction device includes a steel pipe connected to the lower end of the connecting frame. A third piston cylinder is installed at the lower end of the steel pipe. A third piston column is slidably connected to one end of the third piston cylinder, and a dust suction head is installed at one end of the third piston column.

[0007] As an alternative solution of the excavator track rapid milling machine described in the present invention, wherein: a connecting sleeve is arranged between every two of the first piston columns. Sliding plates are slidably connected to both ends of the connecting sleeve, and the sliding plates are hinged to the first piston columns; An air bag is installed at the lower end of the connecting sleeve, and the air bag is used to abut against the milling belt.

[0008] As an alternative solution of the excavator track rapid milling machine described in the present invention, wherein: a second piston cylinder is further installed inside the milling belt. A second piston column is slidably connected inside the second piston cylinder. The second piston column penetrates through the lower end of the second piston cylinder. A second telescopic column is installed at the lower end of the second piston cylinder, and a buckling pressing plate is installed at the lower end of the second telescopic column. The buckling pressing plate is used to abut against the air bag.

[0009] As an alternative solution of the excavator track rapid milling machine described in the present invention, wherein: an adjusting device is further installed inside the milling belt. The adjusting device includes a square box installed on one side of the connecting frame, and two locking devices are arranged inside the square box; The locking device includes an adjusting cavity arranged inside the square box. The first pipe is used to transmit liquid to the adjusting cavity. A first one-way valve is further arranged inside the square box, and the first one-way valve is located at the lower end of the adjusting cavity. A third pipe is installed at the lower end of the square box, and the upper end of the third pipe is communicated with the lower end of the first one-way valve, and the lower end of the third pipe is communicated with the inside of the first piston cylinder.

[0010] As an alternative solution of the excavator track rapid milling machine described in the present invention, wherein: a sealing plate is slidably connected inside the adjusting cavity. A second column is slidably connected to the upper end of the sealing plate. A first column is installed at the upper end of the second column, and the second column is connected to the sealing plate through a third spring; The diameter of the first column is smaller than that of the second column; A pulling plate is installed at one end of the first one-way valve, and the pulling plate is connected to the sealing plate.

[0011] As an alternative solution of the excavator track rapid milling machine tool of the present invention, wherein: a push column is slidably connected to one side of the adjustment cavity, the push column penetrates through one side of the connecting frame, and a convex block is installed at the lower end of the push column, and the convex block is used to squeeze the first column to slide downward; One end of the adjustment cavity is provided with a second one-way valve, and the second one-way valve is connected to the push column through a cable; The upper end of the second piston cylinder is connected with a transmission round pipe, and the upper end of the transmission round pipe is communicated with one end of the second one-way valve.

[0012] As an alternative solution of the excavator track rapid milling machine tool of the present invention, wherein: the dust suction device further includes a cylinder installed inside the connecting frame, a push plate is slidably connected inside the cylinder, the push plate is connected to the cylinder through a hose, and a conveying pipe is further arranged inside the cylinder, and the lower end of the conveying pipe is communicated with the inside of the steel pipe; One end of the push plate is installed with a fourth column, one end of the fourth column is installed with an inclined plate, and the other end of the push plate is installed with an L-shaped column.

[0013] As an alternative solution of the excavator track rapid milling machine tool of the present invention, wherein: the dust suction device includes a slide bar connected to one side of the first piston column, a rotating shaft is rotatably connected to one side of the slide bar, an extending bar is rotatably connected to one side of the rotating shaft, the extending bar and the rotating shaft are connected by a torsion spring, and a limiting bar is further installed on one side of the slide bar, and one end of the extending bar is used to abut against the limiting bar; The L-shaped column is used to abut against the extending bar; One end of the bed body is further provided with a pressing column and a pressing plate; The pressing column is used to squeeze the inclined plate to slide; The pressing plate is used to squeeze a plurality of push columns to slide; The first trapezoidal column and the square frame are connected by a first spring, and the second trapezoidal column and the square frame are connected by a second spring.

[0014] The present invention also provides a milling method for an excavator track rapid milling machine tool: S1. Place the part on the bed body, drive the connecting frame and the milling belt to approach the part through the hydraulic cylinder, and then use a plurality of trigger devices to abut against the part, so as to judge the shape of the part through the plurality of trigger devices; S2. When the shapes of the upper end surfaces of the parts are judged by the plurality of trigger devices, slide the first piston columns inside the milling belt by adjustment, so that the plurality of first piston columns squeeze on the milling belt, so that the lower end of the milling belt adapts to the shape of the part; S3. After S2 is executed, move the dust suction head to make the dust suction head approach the part, so as to enhance the dust suction effect; S4. A reciprocating sliding part to mill the upper end surface of the part with the milling belt; S5. Complete the milling.

[0015] The present invention has the following beneficial effects: 1. For the rapid milling machine tool and method of the excavator track, the liquid inside the first piston cylinder pushes the first piston column to slide downward, and the first piston column pushes the milling belt to deform downward. By this, the shape of the lower end of the milling belt is changed by a plurality of first piston columns, so that the shape of the lower end of the milling belt fits the upper end surface of the part. Thus, the changed milling belt can mill the upper end surface of the part, thereby realizing automatic adjustment of the milling belt to fit the upper end surface of the part, and realizing automatic milling, improving the milling efficiency.

[0016] 2. For the rapid milling machine tool and method of the excavator track, the push plate squeezes the liquid inside the cylinder to the conveying pipe, and the conveying pipe transmits the liquid to the steel pipe. The liquid pushes the third piston column to slide to one end, thereby changing the position of the dust suction head, so that the dust suction head can be close to one end of the part, thus improving the dust suction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the connecting frame of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the triggering device of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the extrusion device of the present invention.

[0021] Figure 5 It is a rear view cross-sectional view of the connecting frame of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the dust suction device of the present invention.

[0023] In the figure: 1. Bed body; 2. Hydraulic cylinder; 3. Connecting frame; 4. Milling belt; 5. Trigger device; 6. Adjusting device; 7. Extrusion device; 8. Dust suction device; 9. Drive shaft; 10. First telescopic column; 11. Transmission plate; 12. Part; 13. Extrusion column; 14. Extrusion plate; 15. Second one-way valve; 16. Cable; 17. Pulling plate; 18. Sealing plate; 19. Delivery pipe; 51. Square frame; 52. First trapezoidal column; 53. First spring; 54. First pipe; 55. Second trapezoidal column; 56. Second spring; 57. Second pipe; 61. Square box; 62. Adjusting cavity; 63. First one-way valve; 64. Third pipe; 66. Third spring; 67. First column; 68. Second column; 69. Pushing column; 70. Bump; 71. First piston cylinder; 72. First piston rod; 73. Pressing plate; 74. Slide plate; 75. Connecting sleeve; 76. Airbag; 77. Second piston cylinder; 78. Second piston rod; 79. Second telescopic column; 80. Clamping plate; 81. Third piston cylinder; 82. Third piston rod; 83. Dust suction head; 84. Steel pipe; 85. Slide bar; 86. Extending bar; 87. Rotating shaft; 88. L-shaped column; 89. Torque spring; 90. Third column; 91. Cylinder; 92. Fourth spring; 93. Pushing plate; 94. Fourth column; 95. Inclined plate; 96. Hose. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0025] Please refer to Figure 1-2 , an excavator track rapid milling machine tool includes a bed body 1 and a hydraulic cylinder 2 installed at one end of the bed body 1. A connecting frame 3 is installed at the lower end of the hydraulic cylinder 2. A milling belt 4 is rotatably connected to the lower end of the connecting frame 3. A plurality of extrusion devices 7 are arranged inside the milling belt 4. The extrusion device 7 includes a first piston cylinder 71 installed at one end of the connecting frame 3. A first piston rod 72 is slidably connected to the lower end of the first piston cylinder 71. The first piston rod 72 is used to extrude the lower end of the milling belt 4 to deform; A drive shaft 9 is also rotatably connected inside the connecting frame 3. A plurality of first telescopic columns 10 are installed on the outer surface of the drive shaft 9. One end of the first telescopic column 10 is installed with a transmission plate 11. The transmission plate 11 abuts against the milling belt 4; On the outer surface of the connecting frame 3, a number of triggering devices 5 are sequentially arranged. The triggering device 5 includes a square frame 51 installed on the outer surface of the connecting frame 3. A first trapezoidal column 52 and a second trapezoidal column 55 are slidably connected to both sides of the square frame 51. Two cavities are arranged inside the square frame 51. The first trapezoidal column 52 and the second trapezoidal column 55 are respectively slidably connected inside the cavities. At one end of the two cavities, a first pipe 54 and a second pipe 57 are respectively arranged. The first pipe 54 and the second pipe 57 are used to squeeze the liquid stored in each cavity into the inside of the first piston cylinder 71.

[0026] Due to the uneven shape of the crawler, when the existing excavator crawler needs to be milled, it can only be milled manually, so the milling efficiency is low, or a five-axis CNC machine tool is used for milling, but the milling cost is high, and the crawler size does not require too high precision. Therefore, the existing excavator crawler milling device cannot quickly mill the excavator crawler. According to Figure 1 As shown, a ram is also installed at the upper end of the bed body 1, and a fixture is installed above the ram. The part 12 is placed on the fixture, and then the hydraulic cylinder 2 drives the connecting frame 3 and the milling belt 4 to slide downwards. According to Figure 2 and Figure 3 As shown, its second trapezoidal column 55 and first trapezoidal column 52 protrude from the lower end of the milling belt 4, so that a number of second trapezoidal columns 55 and first trapezoidal columns 52 abut against the upper end surface of the part 12. The part 12 is used to squeeze the first trapezoidal column 52 and the second trapezoidal column 55 to slide upwards, so as to squeeze the liquid inside the square frame 51 by the first trapezoidal column 52 and the second trapezoidal column 55 into the inside of the first piston cylinder 71. The liquid inside the first piston cylinder 71 pushes the first piston rod 72 to slide downwards, and the first piston rod 72 pushes the milling belt 4 to deform downwards. In this way, the shape of the lower end of the milling belt 4 is changed by a number of first piston rods 72, so that the shape of the lower end of the milling belt 4 is adapted to the upper end surface of the part 12, so that the changed milling belt 4 can mill the upper end surface of the part 12, thereby realizing the automatic adjustment of the milling belt 4 to adapt to the upper end surface of the part 12, so as to realize automatic milling and improve the milling efficiency. It should be noted that a drive shaft 9 is rotatably connected inside the milling belt 4. One side of the drive shaft 9 is connected with a motor. The drive shaft 9 is driven by the motor to rotate. The drive shaft 9 drives the first telescopic column 10 and the transmission plate 11 to rotate. The transmission plate 11 meshes with the inner wall of the milling belt 4, so as to drive the milling belt 4 to rotate through the transmission plate 11. When the first piston rod 72 squeezes the lower end of the milling belt 4 to change the shape of the lower end of the milling belt 4, the milling belt 4 will squeeze the transmission plate 11 and the first telescopic column 10. Through the contraction of the first telescopic column 10, the shape of the milling belt 4 is changed downwards. A pressing plate 73 is installed at the lower end of the first piston rod 72. The pressing plate 73 is used to squeeze the lower end of the milling belt 4 to deform. A dust suction device 8 is also installed at the lower end of the connecting frame 3. The dust suction device 8 includes a steel pipe 84 connected to the lower end of the connecting frame 3. A third piston cylinder 81 is installed at the lower end of the steel pipe 84. A third piston rod 82 is slidably connected to one end of the third piston cylinder 81. A dust suction head 83 is installed at one end of the third piston rod 82.

[0027] A pressing plate 73 is installed at the lower end of the first piston rod 72, and the width of the pressing plate 73 is adapted to the width of the milling belt 4. According to Figure 1 As shown, a dust suction head 83 is provided at one end of the milling belt 4, and the dust generated by the milling of the milling belt 4 is sucked through the dust suction head 83. Embodiment

[0028] This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 1-4 , a connecting sleeve 75 is provided between every two first piston rods 72. Slide plates 74 are slidably connected to both ends of the connecting sleeve 75, and the slide plates 74 are hinged to the first piston rods 72. An airbag 76 is installed at the lower end of the connecting sleeve 75, and the airbag 76 is used to abut against the milling belt 4.

[0029] There is a gap between every two first piston rods 72. Therefore, the milling belt 4 that is not squeezed by the first piston rods 72 cannot completely fit the upper end surface of the part 12. Therefore, an airbag 76 is provided between the two first piston rods 72. According to Figure 4 As shown, when the two first piston rods 72 slide downward, the connecting sleeve 75 is driven to slide downward by the two first piston rods 72, so that the airbag 76 at the lower end of the connecting sleeve 75 abuts against the milling belt 4. Since the airbag 76 is adapted to the gap, after the airbag 76 and the first piston rods 72 squeeze the milling belt 4, the deformed milling belt 4 can completely fit the upper end surface of the part 12, so that the milling belt 4 can mill the part 12 better, thereby reducing the situation of missing milling. It should be noted that since the sliding distances of every two first piston rods 72 downward are different, slide plates 74 are slidably connected to both ends of the connecting sleeve 75, and the slide plates 74 are hinged to the first piston rods 72. Embodiment

[0030] This embodiment is an improvement based on Embodiment 2. Specifically, please refer to Figure 1-6 , a second piston cylinder 77 is also installed inside the milling belt 4. A second piston rod 78 is slidably connected inside the second piston cylinder 77. The second piston rod 78 penetrates through the lower end of the second piston cylinder 77. A second telescopic column 79 is installed at the lower end of the second piston cylinder 77. A clamping plate 80 is installed at the lower end of the second telescopic column 79, and the clamping plate 80 is used to abut against the airbag 76. An adjusting device 6 is also installed inside the milling belt 4. The adjusting device 6 includes a square box 61 installed on one side of the connecting frame 3, and two locking devices are arranged inside the square box 61; The locking device includes an adjusting cavity 62 arranged inside the square box 61. The first pipe 54 is used to transmit liquid to the adjusting cavity 62. A first one-way valve 63 is also arranged inside the square box 61. The first one-way valve 63 is located at the lower end of the adjusting cavity 62. A third pipe 64 is installed at the lower end of the square box 61. The upper end of the third pipe 64 is communicated with the lower end of the first one-way valve 63, and the lower end of the third pipe 64 is communicated with the inside of the first piston cylinder 71; A sealing plate 18 is slidably connected inside the adjusting cavity 62. A second column 68 is slidably connected to the upper end of the sealing plate 18. A first column 67 is installed at the upper end of the second column 68. A third spring 66 is connected between the second column 68 and the sealing plate 18; The diameter of the first column 67 is smaller than that of the second column 68; A pull plate 17 is installed at one end of the first one-way valve 63, and the pull plate 17 is connected to the sealing plate 18; A push column 69 is slidably connected to one side of the adjusting cavity 62. The push column 69 penetrates through one side of the connecting frame 3. A convex block 70 is installed at the lower end of the push column 69. The convex block 70 is used to squeeze the first column 67 to slide downward; A second one-way valve 15 is arranged at one end of the adjusting cavity 62. The second one-way valve 15 is connected to the push column 69 through a cable 16; The upper end of the second piston cylinder 77 is connected with a transmission circular pipe. The upper end of the transmission circular pipe is communicated with one end of the second one-way valve 15.

[0031] Two inclined surfaces are arranged at the lower ends of the first trapezoidal column 52 and the second trapezoidal column 55; The ram drives part 12 to slide from right to left, causing the ram to drive part 12 to first contact the first trapezoidal column 52. The liquid inside the square frame 51 is squeezed by the first trapezoidal column 52 to one of the adjustment chambers 62. The liquid at the adjustment chamber 62 squeezes and opens the first one-way valve 63, allowing the liquid to pass through the first one-way valve 63 and enter the third pipe 64. The liquid is transmitted to the first piston cylinder 71 through the third pipe 64, thereby pushing the first piston rod 72 to slide downward and contact the milling belt 4, thus changing the shape of the lower end of the milling belt 4. When the first one-way valve 63 is opened, the first one-way valve 63 drives the pull plate 17 to slide downward, and the pull plate 17 drives the sealing plate 18 to slide downward, so that the sealing plate 18 seals the lower end of the other adjustment chamber 62. In this way, after part 12 contacts the second trapezoidal column 55, the second trapezoidal column 55 squeezes the liquid inside the square frame 51 into the other adjustment chamber 62. Since the sealing plate 18 seals the lower end of the adjustment chamber 62, the liquid inside the adjustment chamber 62 is squeezed to open the second one-way valve 15, allowing the liquid inside the other adjustment chamber 62 to pass through the second one-way valve 15 and enter the inside of the second piston cylinder 77. The liquid squeezes the second piston rod 78 to slide downward, and the second piston rod 78 drives the second telescopic column 79 and the clamping plate 80 to slide downward. The clamping plate 80 is used to further squeeze the airbag 76, thereby increasing the rigidity of the airbag 76, enabling the airbag 76 to better contact the milling belt 4. In this way, it is realized that first, part 12 squeezes the second trapezoidal column 55 to slide and transmit liquid to push the first piston rod 72, and then part 12 squeezes the second trapezoidal column 55 to slide and transmit liquid to push the clamping plate 80 to contact the airbag 76; It should be particularly noted that when the ram drives part 12 to slide from left to right, the ram drives part 12 to first contact the second trapezoidal column 55, causing the first piston rod 72 to push the milling belt 4 to deform. After the sliding drives part 12 to contact the first trapezoidal column 52 again, the above operations are performed, enabling the liquid to enter the second piston cylinder 77, thereby realizing that no matter whether the operator places the part on the left or right side of the milling belt 4, the shape of the lower end of the milling belt 4 can be changed and the airbag 76 can be locked; It should be particularly noted that the airbag 76 is woven from a wire mesh, and the outer surface of the wire mesh is filled with rubber. Liquid is filled inside the airbag 76, enabling the airbag 76 to deform and fit the lower end face of the milling belt 4. However, due to the too strong plasticity of the airbag 76, after the first piston rod 72 contacts the milling belt 4 and changes its shape, the airbag 76 may deform again, resulting in a large area of the airbag 76 not being able to always contact the milling belt 4. Therefore, after the first piston rod 72 contacts the milling belt 4 and changes its shape, the airbag 76 fits on the milling belt 4. Subsequently, by sliding the clamping plate 80, the clamping plate 80 squeezes the airbag 76, thereby increasing the rigidity of the airbag 76 and preventing the airbag 76 from deforming again. Embodiment

[0032] This embodiment is an improvement made on the basis of Embodiment 3. Specifically, please refer to Figure 1-6 , the dust suction device 8 further includes a cylinder 91 installed inside the connecting frame 3. A push plate 93 is slidably connected inside the cylinder 91. The push plate 93 is connected to the cylinder 91 through a hose 96. A delivery pipe 19 is also arranged inside the cylinder 91. The lower end of the delivery pipe 19 communicates with the inside of the steel pipe 84; One end of the push plate 93 is installed with a fourth post 94. One end of the fourth post 94 is installed with an inclined plate 95. The other end of the push plate 93 is installed with an L-shaped post 88; The dust suction device 8 includes a slide bar 85 connected to one side of the first piston post 72. A rotating shaft 87 is rotatably connected to one side of the slide bar 85. An extending bar 86 is rotatably connected to one side of the rotating shaft 87. The extending bar 86 is connected to the rotating shaft 87 through a torsion spring 89. A limiting bar is also installed on one side of the slide bar 85. One end of the extending bar 86 is used to abut against the limiting bar; The L-shaped post 88 is used to abut against the extending bar 86; One end of the bed body 1 is also provided with a pressing post 13 and a pressing plate 14; The pressing post 13 is used to press the inclined plate 95 to slide; The pressing plate 14 is used to press a plurality of push posts 69 to slide; A first spring 53 is connected between the first trapezoidal post 52 and the square frame 51. A second spring 56 is connected between the second trapezoidal post 55 and the square frame 51.

[0033] According to Figure 4 and Figure 6 shown, when several first piston posts 72 near the dust suction head 83 slide downward, the first piston posts 72 will drive the slide bar 85 to slide downward. The slide bar 85 drives the extending bar 86 to slide downward, so that the extending bar 86 disengages from the L-shaped post 88. Since the L-shaped post 88 has no limit, the push plate 93, the third post 90 and the L-shaped post 88 are pulled by a fourth spring 92 to slide towards one end. In this way, the liquid inside the cylinder 91 is squeezed by the push plate 93 to the delivery pipe 19. The delivery pipe 19 transmits the liquid to the steel pipe 84. According to Figure 1 shown, the third piston post 82 is pushed to slide towards one end by the liquid, so as to change the position of the dust suction head 83, so that the dust suction head 83 can approach one end of the part 12, thereby improving the dust suction effect; It should be particularly noted that, according to Figure 6 shown, the sizes of each cylinder 91 gradually increase, so the liquid storage amounts inside each cylinder 91 are different, so as to adapt to parts 12 of different sizes; After the milling is completed, the hydraulic cylinder 2 drives the connecting frame 3 and the milling belt 4 to slide upward and reset, so that the extrusion column 13 will abut against the inclined plate 95. Thus, the protruding inclined plate 95 is extruded by the extrusion column 13 to slide, so that the inclined plate 95 pushes the fourth column 94 and the third column 90 to slide. The third column 90 drives the L-shaped column 88 to abut against the protruding strip 86. The L-shaped column 88 will extrude the protruding strip 86 to slide to one side. In this way, the L-shaped column 88 abuts against one side of the protruding strip 86 again, and the protruding strip 86 abuts against the limiting strip, thus facilitating the next milling. The extrusion plate 14 extrudes the push column 69 to slide into the adjusting cavity 62. Thus, the push column 69 extrudes the first column 67 and the second column 68 to slide downward. The second column 68 extrudes the first one-way valve 63 to open. The milling belt 4 contracts to extrude the first piston column 72 to reset. Thus, the liquid in the first piston cylinder 71 returns to the adjusting cavity 62 through the first one-way valve 63. The liquid at the adjusting cavity 62 flows back to 51. And when the push column 69 slides, the push column 69 also pulls the second one-way valve 15 to open, so that the liquid in the second piston cylinder 77 also flows back to the adjusting cavity 62. Embodiment

[0034] The present invention also provides a milling method for a rapid milling machine tool for an excavator track: S1. Place the part 12 on the bed body 1. The hydraulic cylinder 2 drives the connecting frame 3 and the milling belt 4 to approach the part 12. Subsequently, several triggering devices 5 abut against the part 12, and thus the shape of the part 12 is judged through the several triggering devices 5. S2. When the several triggering devices 5 judge the shape of the upper end surface of the part 12, the first piston column 72 inside the milling belt 4 is adjusted to slide. Thus, the several first piston columns 72 extrude on the milling belt 4, so that the lower end of the milling belt 4 adapts to the shape of the part 12. S3. After S2 is executed, move the dust suction head 83 so that the dust suction head 83 approaches the part 12, thereby enhancing the dust suction effect. S4. Slide the part 12 back and forth, so that the milling belt 4 mills the upper end surface of the part 12. S5. Finish the milling.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A rapid milling machine tool for excavator crawlers, comprising a machine body (1) and a hydraulic cylinder (2) installed at one end of the machine body (1), characterized in that: A connecting frame (3) is installed at the lower end of the hydraulic cylinder (2). A milling belt (4) is rotatably connected to the lower end of the connecting frame (3). A number of extrusion devices (7) are arranged inside the milling belt (4). The extrusion device (7) includes a first piston cylinder (71) installed at one end of the connecting frame (3). A first piston rod (72) is slidably connected to the lower end of the first piston cylinder (71). The first piston rod (72) is used to extrude the lower end of the milling belt (4) to deform. A drive shaft (9) is also rotatably connected inside the connecting frame (3). A number of first telescopic columns (10) are installed on the outer surface of the drive shaft (9). A transmission plate (11) is installed at one end of the first telescopic column (10). The transmission plate (11) abuts against the milling belt (4). A number of trigger devices (5) are sequentially arranged on the outer surface of the connecting frame (3). The trigger device (5) includes a square frame (51) installed on the outer surface of the connecting frame (3). A first trapezoidal column (52) and a second trapezoidal column (55) are slidably connected to both sides of the square frame (51). Two cavities are arranged inside the square frame (51). The first trapezoidal column (52) and the second trapezoidal column (55) are respectively slidably connected inside the cavities. A first pipe (54) and a second pipe (57) are respectively arranged at one end of the two cavities. The first pipe (54) and the second pipe (57) are used to squeeze the liquid stored in each cavity into the inside of the first piston cylinder (71).

2. The quick milling machine tool for the crawler of an excavator according to claim 1, characterized in that: A pressing plate (73) is installed at the lower end of the first piston rod (72). The pressing plate (73) is used to extrude the lower end of the milling belt (4) to deform. A dust suction device (8) is also installed at the lower end of the connecting frame (3). The dust suction device (8) includes a steel pipe (84) connected to the lower end of the connecting frame (3). A third piston cylinder (81) is installed at the lower end of the steel pipe (84). A third piston rod (82) is slidably connected to one end of the third piston cylinder (81). A dust suction head (83) is installed at one end of the third piston rod (82).

3. The excavator track rapid milling machine tool according to claim 2, characterized in that: A connecting sleeve (75) is arranged between every two of the first piston rods (72). Sliding plates (74) are slidably connected to both ends of the connecting sleeve (75). The sliding plates (74) are hinged to the first piston rods (72). An air bag (76) is installed at the lower end of the connecting sleeve (75). The air bag (76) is used to abut against the milling belt (4).

4. The quick milling machine tool for the crawler of an excavator according to claim 3, characterized in that: A second piston cylinder (77) is also installed inside the milling belt (4). A second piston rod (78) is slidably connected inside the second piston cylinder (77). The second piston rod (78) penetrates through the lower end of the second piston cylinder (77). A second telescopic column (79) is installed at the lower end of the second piston cylinder (77). A clamping plate (80) is installed at the lower end of the second telescopic column (79). The clamping plate (80) is used to abut against the air bag (76).

5. The crawler rapid milling machine tool for excavators according to claim 4, characterized in that: An adjusting device (6) is also installed inside the milling belt (4). The adjusting device (6) includes a square box (61) installed on one side of the connecting frame (3). Two locking devices are arranged inside the square box (61). The latch device includes an adjustment chamber (62) provided inside the square box (61). The first pipe (54) is used to transport liquid to the adjustment chamber (62). A first one-way valve (63) is also provided inside the square box (61). The first one-way valve (63) is located at the lower end of the adjustment chamber (62). A third pipe (64) is installed at the lower end of the square box (61). The upper end of the third pipe (64) is communicated with the lower end of the first one-way valve (63). The lower end of the third pipe (64) is communicated with the inside of the first piston cylinder (71).

6. The quick milling machine tool for the crawler of an excavator according to claim 5, wherein: A sealing plate (18) is slidably connected inside the adjustment chamber (62). A second column (68) is slidably connected to the upper end of the sealing plate (18). A first column (67) is installed at the upper end of the second column (68). The second column (68) and the sealing plate (18) are connected by a third spring (66). The diameter of the first column (67) is smaller than that of the second column (68). A pull plate (17) is installed at one end of the first one-way valve (63). The pull plate (17) is connected to the sealing plate (18).

7. The quick milling machine tool for excavator crawlers according to claim 6, characterized in that: A push column (69) is slidably connected to one side of the adjustment chamber (62). The push column (69) penetrates through one side of the connecting frame (3). A convex block (70) is installed at the lower end of the push column (69). The convex block (70) is used to squeeze the first column (67) to slide downward. A second one-way valve (15) is provided at one end of the adjustment chamber (62). The second one-way valve (15) and the push column (69) are connected by a cable (16). The upper end of the second piston cylinder (77) is connected to a transmission circular pipe. The upper end of the transmission circular pipe is communicated with one end of the second one-way valve (15).

8. The quick milling machine tool for the crawler of an excavator according to claim 7, wherein: The dust suction device (8) further includes a cylinder (91) installed inside the connecting frame (3). A push plate (93) is slidably connected inside the cylinder (91). The push plate (93) and the cylinder (91) are connected by a hose (96). A delivery pipe (19) is also provided inside the cylinder (91). The lower end of the delivery pipe (19) is communicated with the inside of the steel pipe (84). A fourth column (94) is installed at one end of the push plate (93). An inclined plate (95) is installed at one end of the fourth column (94). An L-shaped column (88) is installed at the other end of the push plate (93).

9. The quick milling machine tool for excavator crawlers according to claim 8, characterized in that: The dust suction device (8) includes a slide bar (85) connected to one side of the first piston rod (72). A rotating shaft (87) is rotatably connected to one side of the slide bar (85). An extending bar (86) is rotatably connected to one side of the rotating shaft (87). The extending bar (86) and the rotating shaft (87) are connected by a torsion spring (89). A limiting bar is also installed on one side of the slide bar (85). One end of the extending bar (86) is used to abut against the limiting bar. The L-shaped column (88) is used to abut against the extending bar (86). An extrusion column (13) and an extrusion plate (14) are also provided at one end of the bed body (1). The extrusion column (13) is used to squeeze the inclined plate (95) to slide. The extrusion plate (14) is used to squeeze a plurality of push columns (69) to slide. The first trapezoidal column (52) is connected to the square frame (51) through a first spring (53), and the second trapezoidal column (55) is connected to the square frame (51) through a second spring (56).

10. The milling method of the excavator track rapid milling machine tool according to claim 9, characterized in that: S1. Place the part (12) on the machine bed (1), drive the connecting frame (3) and the milling belt (4) to approach the part (12) through the hydraulic cylinder (2), and then use a plurality of trigger devices (5) to abut against the part (12), so as to judge the shape of the part (12) through the plurality of trigger devices (5); S2. When the plurality of trigger devices (5) judge the shape of the upper end surface of the part (12), slide the first piston columns (72) inside the milling belt (4) by adjustment, so that the plurality of first piston columns (72) press on the milling belt (4), so that the lower end of the milling belt (4) adapts to the shape of the part (12); S3. After S2 is executed, move the dust suction head (83) so that the dust suction head (83) approaches the part (12), so as to enhance the dust suction effect; S4. Slide the part (12) reciprocally, so that the milling belt (4) mills the upper end surface of the part (12); S5. Finish milling.

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