Milling machine drill bit convenient to maintain

Abstract

The utility model discloses a milling machine drill bit convenient to maintain, which comprises a milling machine drill body, a drill bit, an insertion plate, a clamping shaft and a cover plate, the milling machine drill body and the drill bit are fixed through the clamping shaft, the cover plate is fixed on the side face of the milling machine drill body, the insertion plate is arranged between the milling machine drill body and the cover plate in a sliding mode and blocks the outer side of the clamping shaft, and the clamping shaft is fixed on the insertion plate. Mounting grooves are formed in the two sides of the milling machine drill body and the inner side of the cover plate, sliding rods are fixed into the mounting grooves, the surfaces of the sliding rods are slidably sleeved with sliding blocks, the opposite sides of the two sliding blocks are fixed to the surface of the inserting plate, vertical grooves are formed in the side face of the cover plate, and push rods are slidably arranged in the vertical grooves. The utility model relates to the technical field of milling machine drill bits. According to the milling machine drill bit convenient to maintain, when the milling machine drill bit needs to be maintained, the clamping shaft can be conveniently taken out only by upwards pulling the push rod and exposing the clamping shaft, so that the drill bit is very convenient to take out from a milling machine drill body.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machines, in particular to a drill bit for a milling machine which is easy to maintain. Background Art

[0002] As the main equipment for road maintenance, the milling machine is used to mill and break the asphalt pavement or roadbed that affects the normal use of the highway. When the road milling machine is working, the milling rotor installed at the bottom rotates, driving the many milling cutter heads fixed on the rotor, which cut and break the road surface or roadbed to be repaired. The road milling machine also removes the cutting products, and then repaves the road surface or roadbed to complete the road maintenance.

[0003] The drill bit and drill body of existing milling tools are mostly connected as one by welding. The tip of the tool is easily damaged during planing, which affects the work of the tool head, causes the milling teeth to lose their function, and causes waste. Even if the drill bit and the drill body are detachable, they are fixed by bolts. When disassembling and repairing, multiple bolts need to be removed, and the process is relatively cumbersome. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a milling machine drill bit that is easy to maintain to solve the above problems.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a milling machine drill bit that is easy to maintain, comprising a milling machine drill body, a drill bit, a plug plate, a clamping shaft and a cover plate, the milling machine drill body and the drill bit are fixed by the clamping shaft, the cover plate is fixed to the side of the milling machine drill body, and the plug plate is slidably arranged between the milling machine drill body and the cover plate to block the outside of the clamping shaft;

[0006] The milling machine drill body and the inner side of the cover plate are provided with installation grooves, and a slide rod is fixed inside the installation groove. The surface of the slide rod is slidably sleeved with a slider, and the opposite sides of the two sliders are fixed on the surface of the plug plate. The cover plate side is provided with a vertical groove, and a push rod is slidably arranged inside the vertical groove, and one end of the push rod is fixed to the slider.

[0007] Preferably, bevel grooves are provided on both sides of the drill bit, a rectangular groove is provided on the bottom of the drill bit, connecting grooves are provided on the upper parts of both sides of the milling machine drill body, and the connecting grooves are connected to the bevel grooves, and the clamping shaft is inserted into the connecting grooves and the bevel grooves in turn to realize the clamping and fixing of the milling machine drill body and the drill bit.

[0008] Preferably, a groove matching with the drill bit is formed on the top of the drill body of the milling machine, and a rectangular block matching with the rectangular groove is fixed on the bottom of the inner wall of the groove.

[0009] Preferably, the cover plate is fixed to the drill body of the milling machine by bolts.

[0010] Preferably, a spring is sleeved on the surface of the slide rod, and the top end of the spring is fixed to the bottom end of the slide block.

[0011] Beneficial Effects

[0012] The utility model provides a milling machine drill bit that is easy to maintain and has the following beneficial effects:

[0013] The milling machine drill bit which is easy to maintain has the advantages that when the milling machine drill bit needs to be maintained, the user only needs to pull up the push rod to drive the insert plate to move up through the transmission of the slider, and the clamping shaft is exposed as the insert plate moves up, and because the clamping shaft is inserted in the inclined groove, the clamping shaft can be easily taken out after the end of the clamping shaft is exposed, so that the drill bit can be taken out from the milling machine drill body, which is very convenient and does not require screwing a plurality of bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is an exploded view of the structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the cover plate of the utility model.

[0017] In the figure: 1. milling machine drill body; 2. drill bit; 3. plug plate; 4. cover plate; 5. mounting groove; 6. slide rod; 7. slide block; 8. spring; 9. vertical groove; 10. push rod; 11. clamping shaft; 12. inclined groove; 13. rectangular groove; 14. connecting groove; 15. bolt; 16. rectangular block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0019] See also Figure 1-3 The utility model provides a technical solution: a milling machine drill bit that is easy to maintain, comprising a milling machine drill body 1, a drill bit 2, a plug plate 3, a clamping shaft 11 and a cover plate 4, the milling machine drill body 1 and the drill bit 2 are fixed by the clamping shaft 11, the cover plate 4 is fixed to the side of the milling machine drill body 1, the cover plate 4 is fixed to the milling machine drill body 1 by bolts 15, and the plug plate 3 is slidably arranged between the milling machine drill body 1 and the cover plate 4 to block the outer side of the clamping shaft 11;

[0020] Both sides of the milling machine drill body 1 and the inner side of the cover plate 4 are provided with mounting grooves 5, and a slide bar 6 is fixed inside the mounting groove 5, a slide block 7 is slidably sleeved on the surface of the slide bar 6, a spring 8 is sleeved on the surface of the slide bar 6, and the top of the spring 8 is fixed to the bottom of the slide block 7, and the opposite sides of the two slide blocks 7 are fixed to the surface of the plug plate 3, a vertical groove 9 is provided on the side of the cover plate 4, and a push rod 10 is slidably provided inside the vertical groove 9, and one end of the push rod 10 is fixed to the slide block 7;

[0021] When the drill bit of the milling machine needs to be repaired, the push rod 10 is pulled up, and the slide block 7 is driven to move the insert plate 3 upward. As the insert plate 3 moves upward, the clamping shaft 11 is exposed. Since the clamping shaft 11 is inserted in the inclined groove, the end of the clamping shaft 11 is exposed, and the clamping shaft 11 can be easily taken out, so that the drill bit 2 can be taken out from the drill body 1 of the milling machine, which is very convenient and does not require screwing multiple bolts.

[0022] At the same time, during normal use, the drill bit is downward, and under the action of the gravity of the plug plate 3 and the spring 8, the plug plate 3 is difficult to move up, so the card shaft will not be easily exposed, and the setting of the inclined groove ensures that the card shaft 11 will not fall off easily even if there is no plug rod blocking the end of the card shaft.

[0023] Bevel grooves 12 are provided on both sides of the drill bit 2, a rectangular groove 13 is provided at the bottom of the drill bit 2, connecting grooves 14 are provided on the upper parts of both sides of the milling machine drill body 1, and the connecting grooves 14 are connected to the bevel grooves 12, and the clamping shaft 11 is inserted into the connecting grooves 14 and the bevel grooves 12 in sequence to realize the clamping and fixing of the milling machine drill body 1 and the drill bit 2, and a slot compatible with the plug plate is provided on the top of the inner wall of the connecting groove.

[0024] A groove matching the drill bit 2 is provided at the top of the milling machine drill body 1, and a rectangular block 16 matching the rectangular groove 13 is fixed to the bottom of the inner wall of the groove. The arrangement of the rectangular groove 13 and the rectangular block 16 makes the connection between the drill bit and the milling machine drill body 1 more stable and no relative rotation occurs.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] 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 milling machine drill bit that is easy to maintain, comprising a milling machine drill body (1), a drill bit (2), a plug plate (3), a clamping shaft (11) and a cover plate (4), characterized in that: The milling machine drill body (1) and the drill bit (2) are fixed via a clamping shaft (11), the cover plate (4) is fixed to the side of the milling machine drill body (1), and the insert plate (3) is slidably arranged between the milling machine drill body (1) and the cover plate (4) to be sealed on the outside of the clamping shaft (11); Both sides of the milling machine drill body (1) and the inner side of the cover plate (4) are provided with mounting grooves (5), and a slide rod (6) is fixed inside the mounting groove (5), and a sliding block (7) is slidably sleeved on the surface of the sliding rod (6), and the opposite sides of the two sliding blocks (7) are fixed on the surface of the plug plate (3), and a vertical groove (9) is provided on the side of the cover plate (4), and a push rod (10) is slidably arranged inside the vertical groove (9), and one end of the push rod (10) is fixed to the sliding block (7).

2. The milling machine drill bit that is easy to maintain according to claim 1, characterized in that: Both sides of the drill bit (2) are provided with inclined grooves (12), the upper parts of both sides of the milling machine drill body (1) are provided with connecting grooves (14), and the connecting grooves (14) are connected to the inclined grooves (12), and the clamping shaft (11) is inserted into the connecting grooves (14) and the inclined grooves (12) in sequence to realize the clamping and fixing of the milling machine drill body (1) and the drill bit (2).

3. The easy-to-maintain milling machine drill bit according to claim 1, characterized in that: A rectangular groove (13) is provided at the bottom of the drill bit (2), a groove matching the drill bit (2) is provided at the top of the milling machine drill body (1), and a rectangular block (16) matching the rectangular groove (13) is fixed at the bottom of the inner wall of the groove.

4. The easy-to-maintain milling machine drill bit according to claim 1, characterized in that: The cover plate (4) is fixed to the milling machine drill body (1) via bolts (15).

5. The milling machine drill bit that is easy to maintain according to claim 1, characterized in that: A spring (8) is sleeved on the surface of the slide bar (6), and the top end of the spring (8) is fixed to the bottom end of the slide block (7).

Images