Cutter head of ditcher

Abstract

The utility model relates to the technical field of ditchers, and discloses a ditcher cutterhead which comprises a cutterhead body, a mounting groove is formed in the cutterhead body, a fixed insertion block is inserted in the mounting groove, grooves are formed in the outer surface of the cutterhead body, and first bolts are in threaded connection with the outer surfaces of the grooves. Compared with the prior art, the cutter head has the following advantages and effects that part of the cutter teeth can be damaged due to the influence of a ditching environment, so that during mounting, the fixed insertion blocks at the end parts of the cutter teeth are inserted into the mounting grooves reserved in the cutter head body, and the first bolts penetrate into the grooves from the outer parts of the grooves of the cutter head body; the cutter teeth and the cutter head body can be fixed in a separated mode by locking the fixed insertion blocks, so that when the cutter teeth need to be damaged, the fixed insertion blocks can be loosened by rotating and loosening the first bolts outside the grooves, then the single cutter teeth can be replaced, and convenience, rapidness and convenience in operation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of trenching machines, in particular to a trenching machine cutter disc. Background Art

[0002] The trencher is an efficient and practical trenching device. After the diesel engine transmits the rotation to the clutch through the belt, it drives the travel gearbox, drive shaft, rear axle, etc. to realize the forward or backward linear movement of the chain trencher. It is used for laying farmland pipelines, urban and rural optical cables, etc.

[0003] In the prior art, according to Chinese Patent Publication No. CN113056968A, an adjustable trencher cutter disc is provided, which includes a cutter disc housing shaft and a drive assembly, the shaft is rotatably mounted on the arc-shaped side wall of the cutter disc housing, the axis of the shaft is perpendicular to and intersects with the axis of the cutter disc housing, the shafts are at least three and are evenly distributed circumferentially; a blade is rigidly connected to the head of the shaft, the length direction of the blade is perpendicular to the axis of the shaft, the tail of the shaft extends into the mounting cavity, and a driven gear is fixed at its end; the drive assembly is located in the mounting cavity, the output end of the drive assembly is connected to the driven gear and is used to drive the shaft to rotate, thereby driving the blade to rotate and realizing the adjustment of the effective width of the blade.

[0004] The above patent has the effect of driving the blade to rotate and adjusting the effective width of the blade, but it is not convenient to replace the external single tooth of the cutter disc when in use, and it is not convenient to replace the cutter discs of different diameters according to the trenching operation conditions. Therefore, it is necessary to improve the current problems. Utility Model Content

[0005] The utility model aims to provide a trenching machine cutter disc, which has the effect of facilitating the replacement of a single cutter tooth component and facilitating the disassembly and replacement of the cutter disc.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a trenching machine cutter disc, including a cutter disc body, a mounting groove is opened inside the cutter disc body, a fixed plug is inserted inside the mounting groove, a groove is opened on the outer surface of the cutter disc body, a first bolt is threadedly connected to the outer surface of the groove, a center plate is provided on the inner wall of the cutter disc body, an inner disc is fixedly connected to the inner wall of the center plate, a rotating hole is opened on the outer surface of the rotating hole, an extended sealing sleeve is fixedly connected to the outer surface of the rotating hole, and a cutter tooth is fixedly connected to the outer surface of the fixed plug.

[0007] By adopting the above technical scheme, when in use, the trencher driving shaft is passed through the rotating hole to fix the inner disc, so that the cutter disc body can be fixed on the outside thereof, and the inner disc and the cutter disc body are driven to rotate by the driving component to drive the cutter teeth to rotate for trenching operations. Since some cutter teeth may be damaged due to the influence of the trenching environment, during installation, the cutter teeth are separately fixed to the cutter disc body by inserting the fixed plug at the end of the cutter tooth into the inside of the installation groove reserved inside the cutter disc body, and the first bolt is passed from the outside to the inside of the groove of the cutter disc body, and the fixed plug is locked. Therefore, when the cutter tooth needs to be damaged, the fixed plug can be loosened by rotating the first bolt outside the loose groove, and then a single cutter tooth can be replaced, which is convenient, fast and easy to operate.

[0008] The utility model is further configured as follows: a slot is provided inside the central plate, and a card block is clamped inside the slot.

[0009] By adopting the above technical solution, the clamping block is fixed to the inner side of the cutter disc body, so the cutter disc body can be connected to the center plate by clamping the surrounding clamping block inside the cutter disc body into the inner wall of the slot.

[0010] The utility model is further configured as follows: the number of the slots and the number of the clamping blocks are both several, and the outer surface of the clamping block is threadedly connected with a second bolt.

[0011] By adopting the above technical solution, a number of blocks are inserted into the interior of the slots, and the blocks are fixed by passing the second bolts through the outside of the center plate, so that the center plate and the cutter disc body can be detachably connected and fixed. When necessary, the cutter disc body can be disassembled by loosening all the second bolts, thereby facilitating the replacement of cutter disc bodies with different diameters.

[0012] The utility model is further configured as follows: an inner circular groove is provided on the inner wall of the cutter disc body, and a wear-resistant coating is provided on the outer surface of the cutter disc body.

[0013] By adopting the above technical solution, the inner circular groove can provide a concave space for the outer side of the second bolt, thereby preventing stones from excessively contacting the outer side of the second bolt and causing damage during the trenching operation.

[0014] The utility model is further configured as follows: a side guard plate is fixedly connected to the outer surface of the cutter head body, and the number of the side guard plates is several.

[0015] By adopting the above technical solution, the fixed side guard plate can increase the auxiliary support force between the two cutting teeth, thereby reducing the vibration impact on the outside of the cutting teeth caused by the continuous ditching operation.

[0016] The utility model is further configured as follows: an inner clamping plate is fixedly connected to the inner wall of the cutter disc body, and a sealing gasket is fixedly connected to the inner wall of the inner clamping plate.

[0017] By adopting the above technical solution, the inner closing plate can be used to close the outer side of the center plate, and the sealing gasket can increase the sealing between the closed gaps, so that the center plate and the inner side of the cutter disc body are more tightly connected to prevent dust from entering the gap.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model, through the matching arrangement among the cutter disc body, the mounting groove, the fixed plug, the groove, the first bolt, the center plate, the inner disc, the rotating hole, the extended sealing sleeve and the cutter teeth, can enable the device to be used. When in use, the trencher driving shaft is passed through the rotating hole to fix the inner disc, thereby fixing the cutter disc body on the outside thereof, and the inner disc and the cutter disc body are driven to rotate by the driving assembly to drive the cutter teeth to rotate for trenching operation. Since some cutter teeth may be damaged due to the influence of the trenching environment, during installation, the fixed plug at the end of the cutter tooth is inserted into the inside of the mounting groove reserved inside the cutter disc body, and the first bolt is passed from the outside to the inside of the groove of the cutter disc body, and the fixed plug is locked, so that the cutter teeth and the cutter disc body can be separately fixed. Therefore, when the cutter teeth need to be damaged, the fixed plug can be loosened by rotating the first bolt outside the loose groove, and then a single cutter tooth can be replaced, which is convenient, fast and easy to operate.

[0020] 2. The utility model, through the matching arrangement among the slots, the blocks, the second bolts, the inner clamping plate and the sealing gasket, can make the device in use by inserting a plurality of blocks into the slots and fixing the blocks by passing the second bolts through the outside of the center plate, so that the center plate and the cutter disc body can be detachably connected and fixed, and the cutter disc body can be disassembled by loosening all the second bolts when necessary, so as to facilitate the replacement of cutter disc bodies of different diameters, and the inner clamping plate can be used to close the outer side of the center plate, and the sealing gasket can be used to increase the sealing between the closed gaps, so that the center plate and the inner side of the cutter disc body are more tightly connected to prevent dust from entering the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the cutter head body of the utility model;

[0024] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0026] In the figure, 1, the cutter body; 2, the mounting groove; 3, the fixing plug; 4, the groove; 5, the first bolt; 6, the center plate; 7, the inner disc; 8, the rotating hole; 9, the extended sealing sleeve; 10, the cutter teeth; 11, the slot; 12, the block; 13, the second bolt; 14, the inner groove; 15, the wear-resistant coating; 16, the side guard plate; 17, the inner plate; 18, the sealing gasket. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-4A trenching machine cutter disc comprises a cutter disc body 1, a mounting groove 2 is provided inside the cutter disc body 1, a fixed plug block 3 is inserted inside the mounting groove 2, a groove 4 is provided on the outer surface of the cutter disc body 1, a first bolt 5 is threadedly connected to the outer surface of the groove 4, a center plate 6 is provided on the inner wall of the cutter disc body 1, an inner disc 7 is fixedly connected to the inner wall of the center plate 6, a rotating hole 8 is provided on the outer surface of the inner disc 7, an extended sealing sleeve 9 is fixedly connected to the outer surface of the rotating hole 8, and a knife tooth 10 is fixedly connected to the outer surface of the fixed plug block 3. When in use, the trenching machine driving shaft is passed through the rotating hole 8 to fix the inner disc 7, thereby fixing the cutter disc body 1 on its outside, and the inner disc 7 and the cutter disc are driven by the driving assembly The body 1 can be rotated to drive the cutter teeth 10 to rotate for trenching. Due to the influence of the trenching environment, some of the cutter teeth 10 may be damaged. Therefore, during installation, the fixed plug block 3 at the end of the cutter tooth 10 is inserted into the inside of the installation groove 2 reserved inside the cutter disc body 1, and the first bolt 5 is passed from the outside of the groove 4 of the cutter disc body 1 to the inside, and the fixed plug block 3 is locked, so that the cutter tooth 10 and the cutter disc body 1 can be separately fixed. Therefore, when the cutter tooth 10 needs to be damaged, the fixed plug block 3 can be loosened by rotating the first bolt 5 outside the loose groove 4, and then a single cutter tooth 10 can be replaced, which is convenient, fast and easy to operate. A slot 11 is opened inside the center plate 6, and the internal clamping of the slot 11 There is a clamping block 12, which is fixed to the inner side of the cutter disc body 1. Therefore, the cutter disc body 1 can be connected to the center plate 6 by clamping the surrounding clamping block 12 on the inner side of the cutter disc body 1 into the inner wall of the slot 11. There are several slots 11 and clamping blocks 12. The outer surface of the clamping block 12 is threadedly connected with a second bolt 13. By inserting several clamping blocks 12 into the slot 11, the clamping block 12 is fixed by passing the second bolt 13 through the outside of the center plate 6, so that the center plate 6 and the cutter disc body 1 can be detachably connected and fixed. When necessary, the cutter disc body 1 can be disassembled by loosening all the second bolts 13, so as to facilitate the replacement of cutter disc bodies 1 of different diameters. The inner wall of the cutter disc body 1 is provided with an inner circular groove 14. The outer surface of the cutter disc body 1 is provided with a wear-resistant coating 15, and the inner circular groove 14 is convenient for providing an inner concave space for the outer side of the second bolt 13 to prevent stones from excessively contacting the outer side of the second bolt 13 and causing damage during the trenching operation. The outer surface of the cutter disc body 1 is fixedly connected with a side guard plate 16, and the number of the side guard plates 16 is several. The side guard plates 16 are fixed and can increase the auxiliary support force between the two blade teeth 10, thereby reducing the vibration effect on the outer side of the blade teeth 10 caused by the continuous trenching operation. The inner wall of the cutter disc body 1 is fixedly connected with an inner closing plate 17, and the inner wall of the inner closing plate 17 is fixedly connected with a sealing gasket 18, which can be closed with the outer side of the center plate 6 through the inner closing plate 17, and the sealing between the closed gaps can be increased through the sealing gasket 18.Make the center plate 6 and the inner side of the cutter body 1 more tightly connected to prevent dust from entering the gap.

[0029] In the present invention, through the coordinated arrangement among the cutter disc body 1, the mounting groove 2, the fixed plug block 3, the groove 4, the first bolt 5, the center plate 6, the inner disc 7, the rotating hole 8, the extended sealing sleeve 9 and the cutter teeth 10, the device can be used. When in use, the trencher driving shaft is passed through the rotating hole 8 to fix the inner disc 7, thereby fixing the cutter disc body 1 on its outside, and the inner disc 7 and the cutter disc body 1 are driven by the driving component to rotate, so that the cutter teeth 10 can be driven to rotate to perform trenching operations. Since some of the cutter teeth 10 may be damaged by the trenching environment, during installation, the fixed plug block 3 at the end of the cutter teeth 10 is inserted into the inside of the mounting groove 2 reserved in the cutter disc body 1, and the first bolt 5 is passed from the outside to the inside of the groove 4 of the cutter disc body 1, and the fixed plug block 3 is locked, the cutter teeth 10 can be separately fixed to the cutter disc body 1, so when the cutter teeth 10 need to be adjusted, When damage occurs, the fixing block 3 can be loosened by turning the first bolt 5 outside the loose groove 4, and then a single tooth 10 can be replaced, which is convenient, fast and easy to operate. Through the matching arrangement between the slot 11, the block 12, the second bolt 13, the inner clamping plate 17 and the sealing gasket 18, the device can be used. By inserting a plurality of blocks 12 into the slot 11, the block 12 is fixed by the second bolt 13 penetrating the outside of the center plate 6, so that the center plate 6 and the cutter disc body 1 can be detachably connected and fixed. When necessary, the cutter disc body 1 can be disassembled by loosening all the second bolts 13, which is convenient for replacing cutter disc bodies 1 of different diameters. The inner clamping plate 17 can be closed with the outer side of the center plate 6, and the sealing gasket 18 can increase the sealing between the closed gaps, so that the center plate 6 and the inner side of the cutter disc body 1 are more tightly connected to prevent dust from entering the gap.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trenching machine cutter disc, comprising a cutter disc body (1), characterized in that: The cutter disc body (1) is provided with a mounting groove (2) inside, a fixed plug block (3) is inserted inside the mounting groove (2), the outer surface of the cutter disc body (1) is provided with a groove (4), the outer surface of the groove (4) is threadedly connected with a first bolt (5), the inner wall of the cutter disc body (1) is provided with a center plate (6), the inner wall of the center plate (6) is fixedly connected with an inner disc (7), the outer surface of the inner disc (7) is provided with a rotating hole (8), the outer surface of the rotating hole (8) is fixedly connected with an extended sealing sleeve (9), and the outer surface of the fixed plug block (3) is fixedly connected with a cutter tooth (10).

2. A trenching machine cutter disc according to claim 1, characterized in that: A slot (11) is provided inside the central plate (6), and a card block (12) is clamped inside the slot (11).

3. A trenching machine cutter disc according to claim 2, characterized in that: The number of the slots (11) and the number of the clamping blocks (12) are both several, and the outer surface of the clamping block (12) is threadedly connected with a second bolt (13).

4. A trenching machine cutter disc according to claim 1, characterized in that: An inner circular groove (14) is provided on the inner wall of the cutter disc body (1), and a wear-resistant coating (15) is provided on the outer surface of the cutter disc body (1).

5. The trencher cutter disc according to claim 1, characterized in that: The outer surface of the cutter disc body (1) is fixedly connected with a side guard plate (16), and there are a plurality of side guard plates (16).

6. A trenching machine cutter disc according to claim 1, characterized in that: An inner clamping plate (17) is fixedly connected to the inner wall of the cutter disc body (1), and a sealing gasket (18) is fixedly connected to the inner wall of the inner clamping plate (17).

Images