Mechanically-controlled small milling machine and engineering machinery

Abstract

The invention discloses a mechanically-controlled small-sized milling machine and engineering machinery, and the milling machine comprises a connecting frame used for being connected with a main machine; the sidesway oil cylinder is mounted on the connecting frame and is used for driving the milling unit to slide along the connecting frame; the milling unit includes: a main frame; the milling roller is arranged in the main frame; the power unit is used for driving the milling roller to work; and the posture adjusting assembly is mounted on the main frame and is used for adjusting the working posture of the milling unit. According to the invention, all actions of the milling machine are manually controlled, and the host matched with the milling machine does not need to reserve additional control wire harness interfaces and control keys, so that the configuration requirement on the host is reduced; meanwhile, the production and manufacturing cost of the milling machine is reduced.

Description

Technical Field

[0001] This invention belongs to the field of milling machine technology, specifically relating to a mechanically controlled small milling machine and engineering machinery. Background Technology

[0002] Road maintenance is a common task in today's society. It is categorized into preventative maintenance, pothole repair, general damage repair, and base layer damage repair according to different levels and conditions. Among these, pothole repair has almost become a routine task for municipal departments: when small areas of road surface are damaged, a small milling machine is usually used to mill and clean the damaged area before repaving and repairing it. It can be said that the small milling machine is a commonly used tool in road maintenance.

[0003] The main problems with existing small milling machines are: (1) Due to the influence of the motor mounting structure, the shape of the motor limits the vertical adjustment range of the floating plates on both sides, resulting in a smaller milling depth of the milling machine; (2) This type of milling machine is equipped with two drive motors, two depth adjustment cylinders, one side swing adjustment cylinder, and one side shift cylinder. In order to control these hydraulic components, multiple electro-hydraulic valves and control harnesses are also required. This type of milling machine not only requires the host machine (mostly skid steer loaders) to reserve control harness interfaces for it, but also requires many control buttons. Moreover, the control logic is complex, which makes it impossible for some low-end host machines to match this type of milling machine. In addition, the use of too many hydraulic components makes this type of milling machine more expensive, increasing the purchase burden for users. (3) During operation, the lower edges of the floating plates on both sides will slide and wear against the ground. If wear-resistant materials are used for these two floating plates, the cost will be too high. If ordinary steel is used for these two floating plates, they will need to be replaced frequently after wear, and it is very difficult to replace the floating plates with the current installation structure. (4) During operation, under the action of the high-speed rotating milling cutter, some stone fragments will fly out from the gaps at the front and back of the milling unit, posing a threat to surrounding objects and personnel; (5) When the milling unit moves left and right in the side-moving frame, friction noise often occurs, and the anti-rust layer of the friction part is damaged and rust occurs, which causes the milling unit to get stuck when it moves left and right in the side-moving frame. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a mechanically controlled small milling machine and engineering machinery, which enables manual control of all milling machine movements. The matching host does not require additional control wiring harness interfaces and control buttons, thus reducing the configuration requirements of the host; at the same time, it reduces the production and manufacturing costs of the milling machine.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, a milling machine is provided, comprising: a connecting frame for connecting a host machine; a lateral displacement cylinder mounted on the connecting frame for driving a milling unit to slide along the connecting frame; the milling unit comprising: a main frame; a milling roller mounted in the main frame; a power unit for driving the milling roller to work; and an attitude adjustment component mounted on the main frame for adjusting the working posture of the milling unit.

[0006] Furthermore, the milling unit also includes a side-shifting swing frame hinged to the main frame; one end of the side-shifting cylinder is hinged to the connecting frame, and the other end is hinged to the cylinder connecting seat provided on the side-shifting swing frame.

[0007] Furthermore, a guide rail plate is provided on the lateral swing frame, and the guide rail plate is slidably connected to the upper guide rail provided on the connecting frame; a nylon pad is provided between the guide rail plate and the upper guide rail, and the nylon pad is installed on the guide rail plate or the lateral swing frame by a pressure plate.

[0008] Furthermore, the attitude adjustment assembly includes an adjustment rod three for adjusting the horizontal state of the milling unit. The threaded rod three of the adjustment rod three is hinged to the cantilever shaft on the side-shifting swing frame. A movable ring three is provided on the threaded cylinder three that is threadedly connected to the threaded rod three of the adjustment rod three. The movable ring three is hinged to the main frame. A rear seat three is provided on the threaded cylinder three for adjusting the relative position of the threaded cylinder three and the threaded rod three.

[0009] Furthermore, the attitude adjustment assembly includes an adjustment rod two for adjusting the milling depth on the left side of the milling unit. The threaded rod two of the adjustment rod two is hinged to the main frame. A movable ring two is provided on the threaded cylinder two that is threaded to the threaded rod two of the adjustment rod two. The movable ring two is hinged to the left eccentric shaft on the main frame. The left eccentric shaft is hinged to the left floating plate. The left floating plate is slidably connected to the main frame.

[0010] Furthermore, the attitude adjustment assembly includes an adjustment rod for adjusting the milling depth on the right side of the milling unit. The threaded rod of the adjustment rod is hinged to the main frame. A movable ring is provided on a threaded cylinder that is threaded to the threaded rod of the adjustment rod. The movable ring is hinged to a right eccentric shaft provided on the main frame. The right eccentric shaft is hinged to a right floating plate. The right floating plate is slidably connected to the main frame.

[0011] Furthermore, a left sliding shoe is provided on the left floating plate, the left sliding shoe includes a left wear-resistant curved plate, the left wear-resistant curved plate is installed on the left floating plate through a left sliding shoe upright plate; a right sliding shoe is provided on the right floating plate, the right sliding shoe includes a right wear-resistant curved plate, the right wear-resistant curved plate is installed on the right floating plate through a right sliding shoe upright plate.

[0012] Furthermore, the left eccentric shaft includes a left eccentric plate and a left ear plate disposed on a left pin shaft. The left pin shaft is hinged to an eccentric shaft hinge hole disposed on the main frame. The left eccentric plate and the left ear plate are respectively hinged to both sides of the second movable ring. The left eccentric plate is hinged to the left floating plate via a left stepped shaft. The right eccentric shaft includes a right eccentric plate and a right ear plate disposed on a right pin shaft. The right pin shaft is hinged to an eccentric shaft hinge hole disposed on the main frame. The right eccentric plate and the right ear plate are respectively hinged to both sides of the first movable ring. The right eccentric plate is hinged to the right floating plate via a right stepped shaft.

[0013] Furthermore, the power unit includes a motor, which is mounted on a motor mounting base located inside the main frame, and the output end of the motor is connected to the milling drum drive.

[0014] Furthermore, the power unit also includes a manual hydraulic valve for controlling the extension or retraction of the lateral displacement cylinder.

[0015] Furthermore, the main frame is provided with a front curtain and a rear curtain.

[0016] In a second aspect, an engineering machine is provided, the engineering machine being equipped with the milling machine described in the first aspect.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: (1) The present invention uses a connecting frame for connecting the host machine; a side-shifting cylinder installed on the connecting frame for driving the milling unit to slide along the connecting frame; the milling unit includes: a main frame; a milling roller installed in the main frame; a power unit for driving the milling roller to work; and an attitude adjustment component installed on the main frame for adjusting the working attitude of the milling unit; thus realizing manual control of all actions of the milling machine, and the host machine that matches it does not need to reserve additional control wiring harness interfaces and control buttons for it, reducing the configuration requirements of the host machine. (2) The attitude adjustment component of the present invention uses three mechanical adjustment rods (adjustment rod one to adjustment rod three) instead of three hydraulic cylinders, reducing one motor, significantly reducing manufacturing costs, and thus reducing the purchase burden on users; (3) The motor mounting structure in this invention allows the entire outline of the motor to be embedded inside the main frame, without limiting the vertical adjustment range of the floating plate, thereby increasing the milling depth and enhancing the working capacity of the milling machine. (4) The detachable slipper structure in this invention solves the contradiction between wear resistance and product cost, and the structure also reduces the difficulty of replacement for users; (5) The front and rear curtain structure in this invention can prevent stone fragments from flying out from the front and rear ends and injuring people, thus avoiding safety hazards; (6) The installation structure of the nylon pad, guide rail plate and pressure plate in this invention solves the problem of friction noise when the side-moving side swing frame slides left and right on the connecting frame, and also avoids the problem of damage to the anti-rust layer of the friction part, thus improving the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a mechanically controlled small milling machine provided in an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the middle connecting frame; Figure 3 yes Figure 1 A schematic diagram of the structure of the milling unit, wherein (a) is an isometric view of the milling unit and (b) is a schematic diagram after rotating (a) by 180°; Figure 4 yes Figure 1 A schematic diagram of the structure of the power unit, wherein (a) is an assembly diagram of the power unit and (b) is a schematic diagram of the power unit. Figure 5 This is a schematic diagram of the main frame in an embodiment of the present invention, wherein (a) is a schematic diagram of the main frame. Figure 1 (b) is a schematic diagram of the main frame from another perspective; Figure 6 This is a schematic diagram of the motor mounting base in an embodiment of the present invention; Figure 7 This is a schematic diagram of the side-shifting swing frame in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the left eccentric shaft in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the left floating plate in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the right floating plate in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the left sliding shoe in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the adjusting rod one in an embodiment of the present invention; Figure 13 yes Figure 12 Schematic diagram of the structure of the threaded cylinder 1; Figure 14 yes Figure 12 Schematic diagram of the structure of threaded rod 1; In the diagram: 1. Connecting frame; 1.1. Upper guide rail; 1.2. Lower guide rail; 1.3. Side-shifting cylinder connecting seat; 2. Milling unit; 2.1 Main frame; 2.1.1 Motor mounting base; 2.1.1.1 Circular curved plate; 2.1.1.2 Flange plate; 2.1.1.2.1 Motor threaded hole; 2.1.1.3 Sealing plate; 2.1.2 Side-shifting swing arm hinge hole one; 2.1.3 Arc-shaped long slot hole; 2.1.4 Adjusting rod two hinge hole; 2.1.5 Adjusting rod one hinge hole; 2.1.6 Adjusting rod tee hole; 2.1.7 Eccentric shaft hinge hole; 2.1.8 Left end cover threaded hole; 2.1.9 Right end cover threaded hole; 2.1.10 Left guide plate threaded hole; 2.1.11 Right guide plate threaded hole; 2.1.12 Front curtain threaded hole; 2.1.13 Rear curtain threaded hole; 2.1.14 Left upright plate; 2.2 Side-shifting swing arm; 2.2.1 Rear upright plate; 2.2.1.1 Side-shifting swing arm hinge hole two; 2.2.1.2 Through hole; 2.2.1.3 Upper threaded hole; 2.2.1.4 Lower threaded hole; 2.2.2 Cantilever shaft; 2.2.3 Hydraulic cylinder connecting seat; 2.3 Left eccentric shaft; 2.3.1 Left ear plate; 2.3.2 Left eccentric plate; 2.3.3 Left countersunk flange; 2.3.4 Left pin; 2.3.5 Left adjusting rod through hole; 2.3.6 Left stepped shaft threaded hole; 2.3.7 Left snap ring groove; 2.4 Right eccentric shaft; 2.5 Left floating plate; 2.5.1 Arc-shaped long slot hole one; 2.5.2 Arc-shaped long slot hole two; 2.5.3 Left sliding shoe threaded hole; 2.6 Right floating plate; 2.6.1 Arc-shaped long slot hole three; 2.6.2 Arc-shaped long slot hole four; 2.6.3 Right sliding shoe threaded hole; 2.7 Left sliding shoe; 2.7.1 Left wear-resistant curved plate; 2.7.2 Left sliding shoe upright plate; 2.7.2.1 Left sliding shoe through hole; 2.8 Right sliding shoe; 2.9 Front curtain; 2.10 Rear curtain; 2.11 Adjusting rod one; 2.11.1 Threaded cylinder one; 2.11.1.1 Nut two; 2.11.1.2 Steel pipe one; 2.11.1.3 Retaining ring one; 2.11.1.4 Rear seat one; 2.11.1.4.1 Square column one; 2.11.1.5 Movable ring one; 2.11.1.5.1 Mounting threaded hole one; 2.11.1.5.2 Grease nipple threaded hole one; 2.11.2 Threaded rod one; 2.11.2.1 Threaded shaft one; 2.11.2.2 Steel sleeve one; 2.11.2.2.1 Grease nipple threaded hole two; 2.11.3 Nut one; 2.11.4 Grease nipple one; 2.12 Milling roller; 2.13 Right stepped shaft; 2.14 Right end cap; 2.15 Right circular pad; 2.16 Left guide plate; 2.17 Left long strip pad; 2.18 Nylon pad; 2.19 Guide rail plate; 2.20 Pressure plate; 3. Power unit; 3.1 Motor; 3.2 Side shift cylinder; 3.3 Manual hydraulic valve. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0020] Example 1 like Figures 1-14 As shown, a mechanically controlled small milling machine includes: a connecting frame 1 for connecting to the main unit; a lateral displacement cylinder 3.2 mounted on the connecting frame 1 for driving a milling unit 2 to slide along the connecting frame 1; the milling unit 2 includes: a main frame 2.1; a milling roller 2.12 mounted in the main frame 2.1; a power unit 3 for driving the milling roller 2.12 to work; and an attitude adjustment component mounted on the main frame 2.1 for adjusting the working posture of the milling unit 2.

[0021] The connecting frame 1 is a frame structure welded from steel plates or profiles, on which are provided an upper guide rail 1.1 and a lower guide rail 1.2, as well as a side displacement cylinder connecting seat 1.3 for connecting the side displacement cylinder 3.2.

[0022] The main frame 2.1 is a welded structural component. The power unit 3 includes a motor 3.1, which is mounted on a motor mounting base 2.1.1 located inside the main frame 2.1. The motor mounting base 2.1.1 is welded from a circular bent plate 2.1.1.1, a flange plate 2.1.1.2, and a sealing plate 2.1.1.3, and is welded inside the left upright plate 2.1.14 of the main frame 2.1. The flange plate 2.1.1.2 has a motor threaded hole 2.1.1.2.1 for mounting the motor 3.1. The fixed end of the motor 3.1 is fixed to the motor threaded hole 2.1.1.2.1 with bolts. The rotating end of the motor 3.1 is fixed to the milling drum 2.12, providing power for the rotation of the milling drum 2.12. This structure allows the entire outline of the motor 3.1 to be embedded inside the main frame 2.1, without restricting the vertical adjustment range of the floating plate, thereby increasing the milling depth and enhancing the working capacity of the milling machine. The output end of motor 3.1 is connected to the milling drum 2.12 for transmission.

[0023] The lateral swing arm 2.2 is assembled from the rear upright plate 2.2.1, the cantilever shaft 2.2.2, and the hydraulic cylinder connecting seat 2.2.3. The rear upright plate 2.2.1 has a second lateral swing arm hinge hole 2.2.1.1, a through hole 2.2.1.2, an upper threaded hole 2.2.1.3, and a lower threaded hole 2.2.1.4. The second lateral swing arm hinge hole 2.2.1.1 is hinged to the first lateral swing arm hinge hole 2.1.2 of the main frame 2.1 via a pin. The through hole 2.2.1.2 of the swing frame 2.2 is slidably connected to the arc-shaped long slot 2.1.3 of the main frame 2.1 through bolts, nuts, spacers, and washers. That is, the main frame 2.1 is slidably connected to the side swing frame 2.2 through the arc-shaped long slot 2.1.3. Thus, the side swing frame 2.2 can swing within a certain range relative to the main frame 2.1, and the arc-shaped long slot 2.1.3 provides a guiding function when the main frame 2.1 swings relative to the side swing frame 2.2.

[0024] The side-sliding swing bracket 2.2 is equipped with two opposing guide rail plates 2.19, which are connected to the side-sliding swing bracket 2.2 via upper threaded holes 2.2.1.3 and lower threaded holes 2.2.1.4, respectively. The upper and lower guide rail plates 2.19 are slidably connected to the upper guide rail 1.1 and lower guide rail 1.2 mounted on the connecting frame 1, allowing the side-sliding swing bracket 2.2 to slide left and right on the connecting frame 1. A nylon pad 2.18 is placed between the guide rail plate 2.19 and the upper guide rail 1.1, and is mounted on the guide rail plate 2.19 or the side-sliding swing bracket 2.2 via a pressure plate 2.20. This mounting structure of the nylon pad, guide rail plate, and pressure plate solves the problem of friction noise when the side-sliding swing bracket slides left and right on the connecting frame, and also avoids damage to the anti-rust layer at the friction points, thus improving the user experience.

[0025] The attitude adjustment assembly includes: an adjustment rod 2.11 for adjusting the milling depth on the right side of the milling unit 2, an adjustment rod 2 for adjusting the milling depth on the left side of the milling unit 2, and an adjustment rod 3 for adjusting the horizontal state of the milling unit 2. The structures and working principles of adjustment rods 2.11, 2, and 3 are all the same. This invention replaces three hydraulic cylinders with three mechanical adjustment rods, reducing one motor and significantly lowering manufacturing costs, thereby reducing the burden on users.

[0026] Adjusting rod 2.11 is assembled from threaded cylinder 2.11.1, threaded rod 2.11.2, nut 2.11.3, and grease nipple 2.11.4. Threaded cylinder 2.11.1 is welded from nut 2.11.1.1, steel pipe 2.11.1.2, retaining ring 2.11.1.3, rear seat 2.11.1.4, and movable ring 2.11.1.5. Movable ring 2.11.1.5 has two mounting threaded holes 2.11.1.5.1 and one grease nipple threaded hole 2.11.1.5.2. Movable ring 2.11.1.5 can rotate freely between the two retaining rings 2.11.1.3. Rear seat 2.11.1.4 has a square post 2.11.1.4.1 for easy rotation with tools such as a wrench. The threaded rod 2.11.2 is welded from the threaded shaft 2.11.2.1 and the steel sleeve 2.11.2.2. The steel sleeve 2.11.2.2 is provided with a grease nipple threaded hole 2.11.2.2.1. The threaded rod 2.11.2 can be screwed into the threaded cylinder 2.11.1 through the nut 2.11.1.1 of the threaded cylinder 2.11.1.

[0027] Adjusting rod 2.11 is hinged to adjusting rod hinge hole 2.1.5 on main frame 2.1 via steel sleeve 2.11.2.2 on threaded rod 2.11.2 and pin. It is also hinged to right adjusting rod through hole on right eccentric shaft 2.4 on main frame 2.1 via movable ring 2.11.1.5 on threaded cylinder 2.11.1, bolt and spacer. Right eccentric shaft 2.4 is hinged to right floating plate 2.6. Right floating plate 2.6 is slidably connected to main frame 2.1. When the threaded cylinder 2.11.1 is rotated clockwise through the square post 2.11.1.4.1 with a wrench, the length of the adjusting rod 2.11 will shorten; when the threaded cylinder 2.11.1 is rotated counterclockwise through the square post 2.11.1.4.1 with a wrench, the length of the adjusting rod 2.11 will lengthen; the change in the length of the adjusting rod 2.11 will cause the right eccentric shaft 2.4 to rotate.

[0028] Adjusting rod two is hinged to adjusting rod two hinge hole 2.1.4 on the main frame 2.1 via steel sleeve two on threaded rod two and pin shaft, and hinged to left adjusting rod through hole 2.3.5 of left adjusting rod on left eccentric shaft 2.3 on main frame 2.1 via movable ring two on threaded cylinder two, bolt and spacer. Left eccentric shaft 2.3 is hinged to left floating plate 2.5, and left floating plate 2.5 is slidably connected to main frame 2.1. When threaded cylinder two is rotated clockwise with a wrench through square column two, the length of adjusting rod two will shorten; when threaded cylinder two is rotated counterclockwise with a wrench through square column two, the length of adjusting rod two will lengthen; the change in length of adjusting rod two will drive left eccentric shaft 2.3 to rotate.

[0029] The threaded rod of adjusting rod three is hinged to the cantilever shaft 2.2.2 on the lateral swing frame 2.2 via a snap ring. A movable ring three is provided on the threaded cylinder three, which is threaded to the threaded rod three of adjusting rod three. The movable ring three is hinged to the through hole 2.1.6 of adjusting rod three on the main frame 2.1 via bolts and a spacer. A rear seat three is provided on the threaded cylinder three for adjusting the relative position of the threaded cylinder three and the threaded rod three. A square column three is provided on the rear seat three. When the threaded cylinder three is rotated clockwise through the square column three with a wrench, the length of adjusting rod three will shorten; when the threaded cylinder three is rotated counterclockwise through the square column three with a wrench, the length of adjusting rod three will lengthen. This change in the length of adjusting rod three will cause the lateral swing frame 2.2 to rotate relative to the main frame 2.1.

[0030] The left eccentric shaft 2.3 is welded from the left ear plate 2.3.1, the left eccentric plate 2.3.2, the left countersunk flange 2.3.3, and the left pin 2.3.4. Both the left eccentric plate 2.3.2 and the left ear plate 2.3.1 are hinged to both sides of the movable ring 2. It also has a left adjusting rod through hole 2.3.5, a left stepped shaft threaded hole 2.3.6, and a left retaining ring groove 2.3.7. The left eccentric shaft 2.3 is hinged to the eccentric shaft hinge hole 2.1.7 of the main frame 2.1 via a retaining ring, allowing it to rotate within a certain range around the eccentric shaft hinge hole 2.1.7. The left eccentric plate 2.3.2 is hinged to the left floating plate 2.5 via a left stepped shaft.

[0031] The right eccentric shaft 2.4 is the symmetrical component of the left eccentric shaft 2.3, and is hinged to the eccentric shaft hinge hole 2.1.7 of the main frame 2.1 via a snap ring; it can rotate within a certain range around the eccentric shaft hinge hole 2.1.7. The right eccentric shaft 2.4 includes a right eccentric plate and a right ear plate mounted on the right pin, which are respectively hinged to both sides of the movable ring 1; the right eccentric plate is hinged to the right floating plate 2.6 via the right stepped shaft 2.13.

[0032] The left floating plate 2.5 is provided with an arc-shaped long slot 1 2.5.1, an arc-shaped long slot 2.5.2, and a left slip shoe threaded hole 2.5.3; the arc-shaped long slot 1 2.5.1 on the left floating plate 2.5 is connected to the left stepped shaft threaded hole 2.3.6 of the left eccentric shaft 2.3 through the left stepped shaft and bolt; the arc-shaped long slot 2.5.2 of the left floating plate 2.5 is connected to the left end cap threaded hole 2.1.8 of the main frame 2.1 through the left end cap, the left circular pad, and bolt; the left floating plate 2.5 can move up and down as the left eccentric shaft 2.3 rotates.

[0033] The right floating plate 2.6 is provided with an arc-shaped long slot 3 2.6.1, an arc-shaped long slot 4 2.6.2, and a right slip shoe threaded hole 2.6.3; the arc-shaped long slot 3 2.6.1 on the right floating plate 2.6 is connected to the right stepped shaft threaded hole of the right eccentric shaft 2.4 through the right stepped shaft 2.13 and bolts; the arc-shaped long slot 4 2.6.2 on the right floating plate 2.6 is connected to the right end cap threaded hole 2.1.9 of the main frame 2.1 through the right end cap 2.14, the right circular pad 2.15, and bolts; the right floating plate 2.6 can move up and down as the right eccentric shaft 2.4 rotates.

[0034] The left sliding shoe 2.7 is welded together from the left wear-resistant curved plate 2.7.1 and the left sliding shoe upright plate 2.7.2. The left sliding shoe upright plate 2.7.2 is provided with a left sliding shoe through hole 2.7.2.1. The left sliding shoe through hole 2.7.2.1 is fixed to the left sliding shoe threaded hole 2.5.3 of the left floating plate 2.5 by bolts. During operation, the left wear-resistant curved plate 2.7.1 contacts the ground and slides on the ground as the power unit moves.

[0035] The right sliding shoe 2.8 is the symmetrical part of the left sliding shoe 2.7 and is fixed to the right sliding shoe threaded hole 2.6.3 of the right floating plate 2.6 by bolts. During operation, the right wear-resistant curved plate contacts the ground and slides on the ground as the power unit moves.

[0036] The detachable ski boot structure in this invention solves the contradiction between wear resistance and product cost, and the structure also reduces the difficulty of replacement for users.

[0037] The front curtain 2.9 is made of rubber and is fixed to the front curtain threaded hole 2.1.12 of the main frame 2.1 by bolts and a lower pressure plate; during operation, it can prevent gravel from flying out from the front and injuring people.

[0038] The rear curtain 2.10 is also made of rubber and is fixed to the rear curtain threaded hole 2.1.13 of the main frame 2.1 by bolts and a lower pressure plate; during operation, it can prevent stones from flying out from the rear and injuring people.

[0039] The left guide plate 2.16 and the left long strip pad 2.17 are respectively connected to the threaded hole 2.1.10 of the left guide plate of the main frame 2.1 by bolts, and are used for the floating guidance of the left floating plate 2.5.

[0040] The right guide plate and the right long strip pad are respectively connected to the right guide plate threaded hole 2.1.11 of the main frame 2.1 by bolts, for the floating guidance of the right floating plate 2.6.

[0041] One end of the lateral displacement cylinder 3.2 is hinged to the lateral displacement cylinder connecting seat 1.3 of the connecting frame 1 via a pin; the other end is hinged to the cylinder connecting seat 2.2.3 of the lateral displacement swing frame 2.2 via a pin; providing power for the left and right sliding of the lateral displacement swing frame 2.2.

[0042] The power unit 3 also includes a manual hydraulic valve 3.3, which is connected to the side-shifting cylinder 3.2, the motor 3.1, and the matching host through hydraulic lines and connectors, respectively. It can manually control the movement of the side-shifting cylinder 3.2, thereby realizing the left and right sliding of the side-shifting swing frame 2.2.

[0043] Working principle: The mechanically controlled small milling machine is connected to the matching host via the connecting frame 1, and the host provides it with the walking power and hydraulic oil source (no power supply is required from the host).

[0044] Adjust the milling machine according to the road surface conditions: Control the movement of the side-shifting cylinder 3.2 via the manual hydraulic valve 3.3 to achieve left and right sliding of the milling unit 2; Adjust the length of the adjusting rod 2 to drive the left eccentric shaft 2.3 to rotate, which in turn drives the left floating plate 2.5 to move up and down, thereby adjusting the milling depth on the left side; Adjust the length of the adjusting rod 1 2.11 to drive the right eccentric shaft 2.4 to rotate, which in turn drives the right floating plate 2.6 to move up and down, thereby adjusting the milling depth on the right side; Adjust the length of the adjusting rod 3 to drive the side-shifting swing frame 2.2 to rotate relative to the main frame 2.1, thereby achieving left and right swing adjustment of the milling unit 2, completing the adjustment of the milling posture.

[0045] After the milling posture of the milling machine is adjusted, the main unit provides it with the power to move and the hydraulic oil source to carry out the milling operation.

[0046] All actions of the milling machine of this invention are manually controlled, and there is no need for a host machine to reserve a control harness interface and control buttons. Even a low-end host machine can be matched with this milling machine, which reduces the configuration requirements of the host machine.

[0047] Example 2 Based on the mechanically controlled small milling machine described in Embodiment 1, this embodiment provides an engineering machine equipped with the mechanically controlled small milling machine described in Embodiment 1.

[0048] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A milling machine, characterized in that, include: Connector (1) for connecting the host computer; Side-shifting cylinder (3.2) mounted on connecting frame (1) for driving milling unit (2) to slide along connecting frame (1); The milling unit (2) includes: Main framework (2.1); Milling roller (2.12) installed inside the main frame (2.1); Power unit (3) for driving the milling drum (2.12); An attitude adjustment component installed on the main frame (2.1) for adjusting the working posture of the milling unit (2).

2. The milling machine according to claim 1, characterized in that, The milling unit (2) also includes a side-shifting swing frame (2.2) hinged to the main frame (2.1); one end of the side-shifting cylinder (3.2) is hinged to the connecting frame (1), and the other end is hinged to the cylinder connecting seat (2.2.3) provided on the side-shifting swing frame (2.2).

3. The milling machine according to claim 2, characterized in that, A guide rail plate (2.19) is provided on the side-shifting swing frame (2.2), and the guide rail plate (2.19) is slidably connected to the upper guide rail (1.1) provided on the connecting frame (1); a nylon pad (2.18) is provided between the guide rail plate (2.19) and the upper guide rail (1.1), and the nylon pad (2.18) is installed on the guide rail plate (2.19) or on the side-shifting swing frame (2.2) by a pressure plate (2.20).

4. The milling machine according to claim 2, characterized in that, The attitude adjustment assembly includes an adjustment rod three for adjusting the horizontal state of the milling unit (2). The threaded rod three of the adjustment rod three is hinged to the cantilever shaft (2.2.2) on the side-shifting swing frame (2.2). A movable ring three is provided on the threaded cylinder three that is threaded to the threaded rod three of the adjustment rod three. The movable ring three is hinged to the main frame (2.1). A rear seat three is provided on the threaded cylinder three for adjusting the relative position of the threaded cylinder three and the threaded rod three.

5. The milling machine according to claim 1, characterized in that, The attitude adjustment assembly includes an adjustment rod II for adjusting the milling depth on the left side of the milling unit (2). The threaded rod II of the adjustment rod II is hinged to the main frame (2.1). A movable ring II is provided on the threaded cylinder II that is threaded to the threaded rod II of the adjustment rod II. The movable ring II is hinged to the left eccentric shaft (2.3) on the main frame (2.1). The left eccentric shaft (2.3) is hinged to the left floating plate (2.5). The left floating plate (2.5) is slidably connected to the main frame (2.1).

6. The milling machine according to claim 5, characterized in that, The attitude adjustment assembly includes an adjustment rod (2.11) for adjusting the milling depth on the right side of the milling unit (2). The threaded rod (2.11.2) of the adjustment rod (2.11) is hinged to the main frame (2.1). A movable ring (2.11.1.5) is provided on the threaded cylinder (2.11.1) which is threaded to the threaded rod (2.11.2) of the adjustment rod (2.11). The movable ring (2.11.1.5) is hinged to the right eccentric shaft (2.4) provided on the main frame (2.1). The right eccentric shaft (2.4) is hinged to the right floating plate (2.6). The right floating plate (2.6) is slidably connected to the main frame (2.1).

7. The milling machine according to claim 6, characterized in that, A left sliding shoe (2.7) is provided on the left floating plate (2.5). The left sliding shoe (2.7) includes a left wear-resistant bending plate (2.7.1). The left wear-resistant bending plate (2.7.1) is installed on the left floating plate (2.5) through the left sliding shoe upright plate (2.7.2). The right floating plate (2.6) is provided with a right sliding shoe (2.8), which includes a right wear-resistant curved plate. The right wear-resistant curved plate is installed on the right floating plate (2.6) through the right sliding shoe upright plate.

8. The milling machine according to claim 6, characterized in that, The left eccentric shaft (2.3) includes a left eccentric plate (2.3.2) and a left ear plate (2.3.1) mounted on a left pin (2.3.4). The left pin (2.3.4) is hinged to an eccentric shaft hinge hole (2.1.7) mounted on the main frame (2.1). The left eccentric plate (2.3.2) and the left ear plate (2.3.1) are respectively hinged to both sides of the movable ring II. The left eccentric plate (2.3.2) is hinged to the left floating plate (2.5) via a left stepped shaft. The right eccentric shaft (2.4) includes a right eccentric plate and a right ear plate disposed on the right pin shaft. The right pin shaft is hinged to the eccentric shaft hinge hole (2.1.7) disposed on the main frame (2.1). The right eccentric plate and the right ear plate are respectively hinged to both sides of the movable ring one. The right eccentric plate is hinged to the right floating plate (2.6) through the right stepped shaft (2.13).

9. The milling machine according to claim 1, characterized in that, The power unit (3) includes a motor (3.1), which is mounted on a motor mounting base (2.1.1) located inside the main frame (2.1). The output end of the motor (3.1) is connected to the milling drum (2.12) for transmission.

10. The milling machine according to claim 1, characterized in that, The power unit (3) also includes a manual hydraulic valve (3.3) for controlling the extension or retraction of the lateral displacement cylinder (3.2).

11. The milling machine according to claim 1, characterized in that, The main frame (2.1) is provided with a front curtain (2.9) and a rear curtain (2.10).

12. An engineering machinery, characterized in that, The engineering machinery is equipped with a milling machine as described in any one of claims 1 to 11.

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