Highly wear-resistant road milling machine tool bit

Abstract

The utility model discloses a highly wear-resistant road milling machine tool bit, which relates to the technical field of road traffic construction and maintenance, and comprises a tool handle, the periphery of the top of the tool handle is provided with oil passing holes, the outer wall of the tool handle is sleeved with an oil storage sleeve, the periphery of the inner wall of the oil storage sleeve is correspondingly provided with oil outlet holes, and the interior of the tool handle is provided with a lower oil duct; lubricating oil is stored in the oil storage sleeve, flows into the oil passing hole communicated with the oil outlet hole through the oil outlet hole and further flows into the lower oil channel through the oil passing hole, and under the action of gravity, the lubricating oil flows into the bottom of the lower oil channel through the lower oil channel and flows to the outside through the oil filtering hole. And the lubricating oil flows to the cutter teeth through the surface of the cutter holder under the action of gravity, and lubricates the cutter teeth, so that the lubricating oil continuously flows into the surfaces of the cutter teeth for heat dissipation while the cutter teeth mill the ground, the cutter teeth are protected, and the wear resistance of the cutter head of the milling machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of highway traffic construction and maintenance, concretely to high wear resistance highway milling machine cutter head. BACKGROUND

[0002] High wear resistance highway milling machine cutter head is an important tool specially designed for highway construction, which has excellent wear resistance and applicability. It is widely used in bridge deck leveling, milling operation of highway asphalt pavement and concrete pavement, and municipal maintenance operation. It is mainly used for removing cement paste, leveling and removing hard ash left over from construction. The cutter head is generally made of 42CrMo as the cutter body material, and YG8C alloy as the main raw material for cutter teeth, which ensures the hardness and wear resistance of the cutter head. High-quality cutter head can significantly improve the production efficiency of the milling machine.

[0003] For example, the existing patent (publication number: CN206070326U) discloses a milling machine or road paver cutter head, which mainly comprises a cutter shank for mounting on the cutter holder and a cutter head body integrated with the cutter shank. A cutter head for milling operation by directly contacting the ground is arranged on the upper part of the cutter head body. The cutter head is made of hard alloy, and the front part is a conical sharp head. The bottom is welded to the upper end surface of the circular table body cutter head body through the design of the outwardly extending arc-shaped octagonal seat.

[0004] However, the above-mentioned design of the milling machine or road paver cutter head still has some shortcomings in actual use. The design of the alloy head bottom octagonal increases the rotation performance of the cutter head and the strength and firmness of the cutter head alloy part, greatly reducing the fracture problem of the cutter head alloy. However, a large amount of heat will be generated when the milling machine mills the ground. After the machine mills for a period of time, it must be cooled. However, when the milling machine mills the ground, the cutter head of the milling machine cannot be fully cooled, which will cause damage to the cutter head and affect the work efficiency.

[0005] Therefore, we designed the high wear resistance highway milling machine cutter head to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing high wear resistance highway milling machine cutter head to solve the problems in the above background technology.

[0007] To solve the above technical problems, the high wear resistance highway milling machine cutter head provided by the utility model comprises a cutter shank, oil holes are arranged around the top of the cutter shank, an oil storage sleeve is sleeved on the outer wall of the cutter shank, oil outlet holes are arranged around the inner wall of the oil storage sleeve, an oil outlet is arranged in the cutter shank, and a filter oil hole is arranged at the top of the oil outlet.

[0008] Further, the top of the oil storage sleeve is provided with a thickened washer, the top of the thickened washer is provided with a mounting groove, the top of the mounting groove is provided with a tool bit dismounting groove, the top of the tool bit dismounting groove is provided with a tool bit body, the top of the tool bit body is provided with a welding level, the top of the welding level is provided with an arc-shaped seat, and the top of the arc-shaped seat is provided with a tool bit.

[0009] Further, the inside of the thickened washer, the mounting groove, the tool bit dismounting groove, the tool bit body, the welding level, the arc-shaped seat and the tool bit are all provided with an oil outlet channel, so that the lubricating oil can flow into the bottom of the oil outlet channel through the oil outlet channel, and the tool bit teeth are lubricated.

[0010] Further, the oil filter hole is located at the top of the tool bit, one side of the oil filter hole is communicated with one side of the top of the oil outlet channel, and the lubricating oil can flow out of the surface of the tool bit seat and further flow to the surface of the tool bit teeth through the oil filter hole.

[0011] Further, the top of the tool bit is provided with a tool bit seat, and the top of the tool bit seat is provided with tool bit teeth.

[0012] Further, the tool bit dismounting groove is connected in the mounting groove through screw threads, so that the tool bit body and the above parts can be dismounted.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the lubricating oil is stored in the inside of the oil storage sleeve, flows into the oil passing hole communicated with the oil outlet hole through the oil outlet hole, and further flows into the oil outlet channel through the oil passing hole, under the action of gravity, the lubricating oil flows into the bottom of the oil outlet channel through the oil outlet channel, and flows to the outside through the oil filter hole, then flows to the tool bit teeth through the surface of the tool bit seat under the action of gravity, lubricates the tool bit teeth, ensures that the tool bit teeth mill the ground while the lubricating oil flows to the surface of the tool bit teeth to radiate heat and protect the tool bit teeth, and increases the wear resistance of the tool bit of the milling machine.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: the tool bit dismounting groove is connected in the mounting groove through screw threads, so that the tool bit body and the above parts can be dismounted and replaced when the tool bit body and the above parts reach the service life, the tool bit of the milling machine is maintained, and the situation that the tool bit of the milling machine is damaged during work and cannot work or even causes harm to workers is avoided. DRAWINGS

[0015] Figure 1 It is an external three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a tool handle sectional structure schematic view of the utility model;

[0017] Figure 3 It is a bottom surface structure schematic view of the utility model;

[0018] Figure 4 For the utility model Figure 1 The structure of A in the middle is enlarged and shows a schematic view.

[0019] In the figure: 1, handle; 2, oil hole; 3, oil storage sleeve; 4, oil outlet; 5, oil channel; 6, thickened washer; 7, mounting groove; 8, tool removal groove; 9, tool head body; 10, welding level; 11, arc seat; 12, tool head; 13, oil filter hole; 14, tool seat; 15, tool teeth. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] In the description of the utility model, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like are the directions or position relations shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and are not intended to 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 a limitation on the utility model.

[0022] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-4 The utility model provides a technical scheme: high wear-resistant highway milling machine tool head, including handle 1, the top of handle 1 is provided with oil hole 2 around, the outer wall of handle 1 is provided with oil storage sleeve 3, the inner wall of oil storage sleeve 3 is provided with oil outlet 4 around, the inside of handle 1 is provided with oil channel 5, the top of oil channel 5 is provided with oil filter hole 13, thickened washer 6, mounting groove 7, tool removal groove 8, tool head body 9, welding level 10, arc seat 11 and the inside of tool head 12 are all provided with oil channel 5, oil filter hole 13 is located at the top of tool head 12, one side of oil filter hole 13 is communicated with the top side of oil channel 5.

[0024] In implementation, the lubricating oil is stored in the inside of the oil storage sleeve 3, flows into the oil passing hole 2 connected with the oil outlet hole 4 through the oil outlet hole 4, and further flows into the lower oil channel 5 through the oil passing hole 2, under the action of gravity, the lubricating oil flows into the bottom of the lower oil channel 5 through the lower oil channel 5, and flows to the outside through the oil filter hole 13, then under the action of gravity, flows to the cutter tooth 15 through the surface of the cutter seat 14, lubricates the cutter tooth 15, ensures that the cutter tooth 15 is continuously lubricated while milling the ground, and increases the wear resistance of the milling machine cutter head.

[0025] Referring to Figures 1-4 As shown, the top of the oil storage sleeve 3 is provided with a thickened washer 6, the top of the thickened washer 6 is provided with a mounting groove 7, the top of the mounting groove 7 is provided with a cutter dismounting groove 8, the top of the cutter dismounting groove 8 is provided with a cutter head body 9, the top of the cutter head body 9 is provided with a welding level 10, the top of the welding level 10 is provided with an arc-shaped seat 11, the top of the arc-shaped seat 11 is provided with a cutter head 12, the top of the cutter head 12 is provided with a cutter seat 14, the top of the cutter seat 14 is provided with a cutter tooth 15, and the cutter dismounting groove 8 is threadedly connected in the mounting groove 7.

[0026] In implementation, the cutter dismounting groove 8 is threadedly connected in the mounting groove 7, when the cutter head body 9 and the upper part thereof reach the service life, the cutter head body 9 and the upper part thereof can be dismounted and replaced, the milling machine cutter head is conveniently maintained, and the situation that the milling machine cutter head is damaged during work and cannot work or even harms the worker is avoided.

[0027] Working principle: the lubricating oil is stored in the inside of the oil storage sleeve 3, flows into the oil passing hole 2 connected with the oil outlet hole 4 through the oil outlet hole 4, and further flows into the lower oil channel 5 through the oil passing hole 2, under the action of gravity, the lubricating oil flows into the bottom of the lower oil channel 5 through the lower oil channel 5, and flows to the outside through the oil filter hole 13, then under the action of gravity, flows to the cutter tooth 15 through the surface of the cutter seat 14, lubricates the cutter tooth 15, ensures that the cutter tooth 15 is continuously lubricated while milling the ground, and increases the wear resistance of the milling machine cutter head.

[0028] The cutter dismounting groove 8 is threadedly connected in the mounting groove 7, when the cutter head body 9 and the upper part thereof reach the service life, the cutter head body 9 and the upper part thereof can be dismounted and replaced, the milling machine cutter head is conveniently maintained, and the situation that the milling machine cutter head is damaged during work and cannot work or even harms the worker is avoided.

[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form, although the present application has been disclosed as above with preferred embodiments, however, it is not intended to limit the present application, any person skilled in the art without departing from the technical scheme of the present application can make some changes or modifications to the above-mentioned technical content for equivalent embodiments, the implementation schemes in the above-mentioned embodiments can be further combined or replaced, as long as it does not deviate from the technical scheme of the present application, any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the technical essence of the present application still belongs to the scope of the present application.

Claims

1. A high wear-resistant road milling machine cutter head, including a cutter holder (1), characterized in that, The top of the handle (1) has oil passage holes (2) around its perimeter. The outer wall of the handle (1) is fitted with an oil storage sleeve (3). The inner wall of the oil storage sleeve (3) is provided with oil outlet holes (4) around its perimeter. The handle (1) has a lower oil passage (5) inside its interior. The top of the lower oil passage (5) is provided with an oil filter hole (13).

2. The high wear-resistant road milling machine cutter head as described in claim 1, characterized in that: The top of the oil storage sleeve (3) is provided with a thickened washer (6), the top of the thickened washer (6) is provided with an installation groove (7), the top of the installation groove (7) is provided with a cutter removal groove (8), the top of the cutter removal groove (8) is provided with a cutter head body (9), the top of the cutter head body (9) is provided with a welding layer (10), the top of the welding layer (10) is provided with an arc-shaped seat (11), and the top of the arc-shaped seat (11) is provided with a cutter head (12).

3. The high wear-resistant road milling machine cutter head as described in claim 2, characterized in that: The thickened gasket (6), mounting groove (7), unloading groove (8), cutter head body (9), welding layer (10), arc seat (11) and cutter head (12) are all provided with lower oil passages (5).

4. The high wear-resistant road milling machine cutter head as described in claim 1, characterized in that: The oil filter hole (13) is located at the top of the cutter head (12), and one side of the oil filter hole (13) is connected to the top side of the lower oil passage (5).

5. The high wear-resistant road milling machine cutter head as described in claim 4, characterized in that: The top of the cutter head (12) is provided with a cutter seat (14), and the top of the cutter seat (14) is provided with cutter teeth (15).

6. The high wear-resistant road milling machine cutter head as described in claim 2, characterized in that: The unloading groove (8) is threaded into the mounting groove (7).

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