Height-adjustable cutter head

Abstract

The utility model relates to a height-adjustable cutterhead, which comprises a fixing frame, an adjusting box, a vertical block, a driving piece, a cutter and a fixing device, the adjusting box is arranged on the fixing frame, a vertical cavity arranged along the vertical direction is arranged in the adjusting box, the vertical block is arranged in the vertical cavity in a sliding manner, the driving piece is fixed on the vertical block and vertically slides along with the vertical block, and the cutter is fixed on the fixing device. The driving piece is provided with an output shaft, the output shaft extends out of the adjusting box and drives the cutter to rotate, a plurality of locking grooves extending to the vertical cavity are formed in the adjusting box and are vertically arranged, and fixing grooves opposite to the locking grooves are formed in the vertical block. The fixing device is arranged between the locking groove and the fixing groove and has the fixing state that the vertical block is fixed to the adjusting box.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutter head, particularly to a height adjustable cutter head. BACKGROUND

[0002] The cutter head is one of the key components of the mower, which is usually made of metal and is located at the bottom of the machine for mounting and supporting the rotating blade. When the mower is running, the engine or motor drives the cutter head to rotate, thereby driving the blade to cut the lawn.

[0003] However, the current cutter head is difficult to adjust the height and cannot meet various use conditions. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a height adjustable cutter head.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cutter head comprising a fixed frame, an adjusting box, a vertical block, a driving part, a cutter and a fixing device, the adjusting box is arranged on the fixed frame, the vertical cavity is arranged in the adjusting box in the vertical direction, the vertical block is arranged in the vertical cavity in a sliding manner, the driving part is fixed on the vertical block and slides vertically with the vertical block, the driving part has an output shaft which extends out of the adjusting box and drives the cutter to rotate, a plurality of locking grooves extending to the vertical cavity are arranged in the adjusting box in the vertical direction, a fixing groove opposite to the locking groove is arranged in the vertical block, and the fixing device is arranged between the locking groove and the fixing groove and has a fixing state of fixing the vertical block to the adjusting box.

[0006] By using the above technical scheme, the fixed frame is connected to the rack of the mower by bolts before use. When the height needs to be adjusted, the vertical block is moved in the vertical cavity, so that the height of the vertical block with the driving part changes, thereby changing the height of the cutter. When the height is appropriate, the fixing groove of the vertical block is moved to the nearest locking groove. Under the action of the fixing device, the vertical block is fixed, and at this time, the cutter is also fixed, the height adjustment is completed, and the whole process is convenient and simple.

[0007] The utility model is further provided as follows: the fixing device comprises a fixing block, a fixing spring and an unlocking mechanism, the fixing block is arranged in the fixing groove in a sliding manner, the fixing spring is arranged between the fixing block and the fixing groove and drives the fixing block to move out of the fixing groove, and the unlocking mechanism is arranged on the adjusting box and has an unlocking state of pushing the fixing block out of the locking groove.

[0008] By using the above technical scheme, when the vertical block needs to be fixed, the fixing groove is opposite to the locking groove. At this time, the fixing block partially enters the locking groove under the action of the fixing spring. At this time, the vertical block cannot be moved. When unlocking is needed, the fixing block is pushed out of the locking groove by the unlocking mechanism, and the unlocking is completed.

[0009] The present invention is further configured such that: the unlocking mechanism includes an unlocking block and a rotating rod, the unlocking block is slidably disposed within the unlocking block and has an arc end located outside the locking groove, and the rotating rod is disposed on the adjusting box and has an unlocking position for pressing the arc end.

[0010] By adopting the above technical solution, when unlocking is required, the rotating rod is rotated so that the arc end of the rotating rod is pressed into the locking groove, and the unlocking block can push the fixing block out of the locking groove to complete the unlocking. As long as the rotating rod is kept in the unlocked position, even if the locking groove and the fixing groove are opposite, the fixing block cannot enter. When adjusting the height of the tool, it is only necessary to move the corresponding rotating rod away from the unlocked position. During the process of driving the vertical block to move, the fixing action can be completed automatically.

[0011] The present invention is further configured to include a pressing screw and a supporting spring. The pressing screw is disposed in the vertical cavity and has an operating end extending to the outside of the adjustment box. The supporting spring is disposed in the vertical cavity and has a supporting state for driving the adjustment box to move upward.

[0012] By adopting the above technical solution, when it is necessary to lower the tool height, the vertical block is pressed down by pressing the screw to lower it until the vertical block is fixed. When it is necessary to raise the tool height, the pressing screw is raised and the locking of the vertical block is released. Then, under the action of the support spring, the vertical block moves upward.

[0013] The present invention is further configured such that: the cutting tool includes a rotating disk and a blade, the output shaft is fixed at the center of the rotating disk, and a receiving groove for accommodating the blade is provided on the other side of the rotating disk opposite to the output shaft, and the blade is detachably disposed in the receiving groove. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the entire utility model;

[0016] Figure 3 This utility model Figure 2 A magnified view of part A in the image.

[0017] In the diagram: 1. Fixing frame; 2. Adjusting box; 21. Vertical cavity; 3. Vertical block; 31. Locking groove; 32. Fixing groove; 4. Driving component; 41. Output shaft; 5. Cutting tool; 51. Rotating disk; 52. Blade; 53. Receiving groove; 6. Fixing device; 61. Fixing block; 62. Fixing spring; 63. Unlocking mechanism; 631. Unlocking block; 632. Rotating rod; 633. Arc end; 7. Pressing screw; 71. Operating end; 8. Support spring. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] As shown in Figures 1-3 The utility model discloses a height adjustable cutter head, including fixed frame 1, adjustment box 2, vertical block 3, drive part 4, tool 5 and fixing device 6, adjustment box 2 sets up on fixed frame 1, and the vertical cavity 21 of being arranged along the vertical is provided in adjustment box 2, and the vertical block 3 slidingly sets up in the vertical cavity 21, and drive part 4 is fixed in vertical block 3 and with vertical block 3 vertical slip, and drive part 4 has output shaft 41 and output shaft 41 extends to adjustment box 2 outside and drives tool 5 to rotate, and adjustment box 2 is provided with a plurality of locking slots 31 along the extension to the vertical cavity 21 and the locking slots 31 vertical arrangement, and the fixing groove 32 opposite locking slots 31 is provided in vertical block 3, and fixing device 6 is set up between locking slots 31 and fixing groove 32 and has the fixed state of fixing vertical block 3 in adjustment box 2, before use, the fixed frame 1 is connected through bolt and the rack of mower, when needing to adjust height, the movement of vertical block 3 in the vertical cavity 21 is pushed, so that vertical block 3 height with drive part 4 changes, thereby changing the height of tool 5, when the height is more appropriate, the fixing groove 32 of vertical block 3 is moved to the nearest locking slot 31, under the action of fixing device 6, vertical block 3 is fixed, at this moment, tool 5 is also fixed, and the height adjustment is completed, and the whole process is convenient and simple.

[0021] The fixing device 6 includes a fixing block 61, a fixing spring 62, and an unlocking mechanism 63. The fixing block 61 is slidably disposed in the fixing groove 32. The fixing spring 62 is disposed between the fixing block 61 and the fixing groove 32 and drives the fixing block 61 to move out of the fixing groove 32. The unlocking mechanism 63 is disposed on the adjusting box 2 and has an unlocked state that pushes the fixing block 61 out of the locking groove 31. When it is necessary to fix the vertical block 3, the fixing groove 32 and the locking groove 31 are opposite each other. At this time, the fixing block 61 partially enters the locking groove 31 under the action of the fixing spring 62. At this time, the vertical block 3 cannot move. When it is necessary to unlock, the unlocking mechanism 63 pushes the fixing block 61 out of the locking groove 31 to complete the unlocking.

[0022] The unlocking mechanism 63 includes an unlocking block 631 and a rotating rod 632. The unlocking block 631 is slidably disposed within the unlocking block 631 and has an arc end 633 located outside the locking groove 31. The rotating rod 632 is disposed on the adjustment box 2 and has an unlocking position for pressing the arc end 633. When unlocking is required, the rotating rod 632 is rotated so that the rotating rod 632 presses the arc end 633 into the locking groove 31, and the unlocking block 631 can push the fixing block 61 out of the locking groove 31 to complete the unlocking. As long as the rotating rod 632 remains in the unlocking position, even if the locking groove 31 and the fixing groove 32 are opposite, the fixing block 61 cannot enter. When adjusting the height of the cutter 5, it is only necessary to move the corresponding rotating rod 632 away from the unlocking position, and the fixing action can be automatically completed during the movement of the vertical block 3.

[0023] It also includes a pressing screw 7 and a support spring 8. The pressing screw 7 is located in the vertical cavity 21 and has an operating end 71 extending to the outside of the adjustment box 2. The support spring 8 is located in the vertical cavity 21 and has a supporting state for driving the adjustment box 2 to move upward. When it is necessary to lower the height of the tool 5, the pressing screw 7 is used to press the vertical block 3 to lower it until the vertical block 3 is fixed. When it is necessary to raise the height of the tool 5, the pressing screw 7 is raised and the locking of the vertical block 3 is released. Then, under the action of the support spring 8, the vertical block 3 moves upward.

[0024] The cutting tool 5 includes a rotating disk 51 and a cutting blade 52. The output shaft 41 is fixed to the center of the rotating disk 51. The rotating disk 51 is provided with a receiving groove 53 on the other side of the output shaft 41 to accommodate the cutting blade 52. The cutting blade 52 is detachably disposed in the receiving groove 53.

[0025] Working process: before use, the fixed frame 1 is connected with the frame of the mower through bolt, when the height of the cutter 5 needs to be reduced, the rotating rod 632 of the corresponding height is removed from the unlocking position, the vertical block 3 is pressed by pressing the screw rod 7, and the vertical block 3 is lowered until the fixed groove 32 is opposite to the corresponding locking groove 31, the vertical block 3 is fixed, and when the height of the cutter 5 needs to be raised, the pressing screw rod 7 is raised, and the rotating rod 632 is rotated, so that the rotating rod 632 presses the arc end 633 into the locking groove 31, the unlocking block 631 can push the fixed block 61 out of the locking groove 31, the unlocking of the vertical block 3 is completed, then the rotating rod 632 of the corresponding height is removed from the unlocking position, and then under the action of the supporting spring 8, the vertical block 3 moves upward until the fixed groove 32 is opposite to another corresponding locking groove 31, the height adjustment is completed.

Claims

1. A height adjustable cutterhead characterized by: The utility model relates to a cutting device, including fixed frame (1), adjusting box (2), vertical block (3), drive part (4), tool (5) and fixing device (6), adjusting box (2) sets up on fixed frame (1), adjusting box (2) is provided with the vertical cavity (21) along vertical arrangement in, vertical block (3) slip setting is in vertical cavity (21), drive part (4) is fixed in vertical block (3) and follows vertical block (3) vertical slip, drive part (4) has output shaft (41) and output shaft (41) extends to adjusting box (2) outside and drives tool (5) rotation, adjusting box (2) is provided with multiple locking slot (31) along the extension to vertical cavity (21) and locking slot (31) vertical arrangement in, vertical block (3) is provided with the fixed slot (32) opposite locking slot (31), fixing device (6) sets up between locking slot (31) with fixed slot (32) and has the fixed state of fixing vertical block (3) in adjusting box (2).

2. A height adjustable cutter head as claimed in claim 1 wherein: The utility model relates to a cutting device, including fixed frame (1), adjusting box (2), vertical block (3), drive part (4), tool (5) and fixing device (6), adjusting box (2) sets up on fixed frame (1), adjusting box (2) is provided with the vertical cavity (21) along vertical arrangement in, vertical block (3) slip setting is in vertical cavity (21), drive part (4) is fixed in vertical block (3) and follows vertical block (3) vertical slip, drive part (4) has output shaft (41) and output shaft (41) extends to adjusting box (2) outside and drives tool (5) rotation, adjusting box (2) is provided with multiple locking slot (31) along the extension to vertical cavity (21) and locking slot (31) vertical arrangement in, vertical block (3) is provided with the fixed slot (32) opposite locking slot (31), fixing device (6) sets up between locking slot (31) with fixed slot (32) and has the fixed state of fixing vertical block (3) in adjusting box (2).

3. A height adjustable cutterhead according to claim 2 wherein: The utility model relates to a cutting device, including fixed frame (1), adjusting box (2), vertical block (3), drive part (4), tool (5) and fixing device (6), adjusting box (2) sets up on fixed frame (1), adjusting box (2) is provided with the vertical cavity (21) along vertical arrangement in, vertical block (3) slip setting is in vertical cavity (21), drive part (4) is fixed in vertical block (3) and follows vertical block (3) vertical slip, drive part (4) has output shaft (41) and output shaft (41) extends to adjusting box (2) outside and drives tool (5) rotation, adjusting box (2) is provided with multiple locking slot (31) along the extension to vertical cavity (21) and locking slot (31) vertical arrangement in, vertical block (3) is provided with the fixed slot (32) opposite locking slot (31), fixing device (6) sets up between locking slot (31) with fixed slot (32) and has the fixed state of fixing vertical block (3) in adjusting box (2).

4. The height adjustable cutterhead of claim 1, wherein: The utility model relates to a cutting device, including fixed frame (1), adjusting box (2), vertical block (3), drive part (4), tool (5) and fixing device (6), adjusting box (2) sets up on fixed frame (1), adjusting box (2) is provided with the vertical cavity (21) along vertical arrangement in, vertical block (3) slip setting is in vertical cavity (21), drive part (4) is fixed in vertical block (3) and follows vertical block (3) vertical slip, drive part (4) has output shaft (41) and output shaft (41) extends to adjusting box (2) outside and drives tool (5) rotation, adjusting box (2) is provided with multiple locking slot (31) along the extension to vertical cavity (21) and locking slot (31) vertical arrangement in, vertical block (3) is provided with the fixed slot (32) opposite locking slot (31), fixing device (6) sets up between locking slot (31) with fixed slot (32) and has the fixed state of fixing vertical block (3) in adjusting box (2).

5. The height adjustable cutterhead of claim 1, wherein: The utility model relates to a cutting device, including fixed frame (1), adjusting box (2), vertical block (3), drive part (4), tool (5) and fixing device (6), adjusting box (2) sets up on fixed frame (1), adjusting box (2) is provided with the vertical cavity (21) along vertical arrangement in, vertical block (3) slip setting is in vertical cavity (21), drive part (4) is fixed in vertical block (3) and follows vertical block (3) vertical slip, drive part (4) has output shaft (41) and output shaft (41) extends to adjusting box (2) outside and drives tool (5) rotation, adjusting box (2) is provided with multiple locking slot (31) along the extension to vertical cavity (21) and locking slot (31) vertical arrangement in, vertical block (3) is provided with the fixed slot (32) opposite locking slot (31), fixing device (6) sets up between locking slot (31) with fixed slot (32) and has the fixed state of fixing vertical block (3) in adjusting box (2).

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