Anti-skid tool apron of milling machine

Abstract

The utility model discloses an anti-skid cutter holder of a milling machine, and relates to the technical field of road maintenance. The cutter comprises a cutter base, a cutter body and a cutter tip, and is characterized in that a plurality of groups of second fixing blocks are arranged on the upper surface of the cutter base, a circular groove is formed in the cutter base, a cutter withdrawal groove is formed in the bottom surface of the cutter base and communicated with the circular groove, a circular hole is formed in the peripheral side face of the cutter base and communicated with the circular groove, and a wear-resistant coating is arranged on the peripheral side face of the inner wall of the circular groove. The fixing holes in the peripheral side face of the tool body are aligned with the round holes in the peripheral side face of the tool apron, the tool body is fixed through the screw pins after alignment, the second fixing blocks arranged on the upper surface of the tool apron can be clamped with the fixing grooves, and the situation that the interior of the tool apron and the screw pins are damaged when the tool body works at high strength is prevented; the wear-resistant coating is arranged on the circumferential side face of the inner wall of the circular groove, during operation, the wear-resistant coating can prevent the cutter body from sliding up and down in a small range when the cutter body works, abrasion to the interior of the cutter holder is avoided, meanwhile, the wear-resistant coating greatly enhances the wear resistance of the cutter body in the circular groove, and the service life of the cutter body in the circular groove is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of road maintenance, in particular to a skid-proof cutter seat of a milling machine. Background Art

[0002] As the main equipment for road maintenance, the road milling machine is used to mill and break the asphalt (or cement) road surface 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, and the milling cutter heads 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] Due to the very complex and harsh operating conditions, the end face of the milling cutter seat used to support one end of the milling cutter head is prone to slight sliding during use. Under long-term high-intensity work, it will cause wear and cause the milling cutter seat to be scrapped. However, in most cases, the wear amount of the scrapped milling cutter seat is only about 10% of the overall weight, resulting in a huge waste of alloy materials and their added value. Summary of the invention

[0004] The utility model aims to provide a non-slip cutter seat of a milling machine to solve the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a knife seat for an anti-skid milling machine, comprising a knife base, a knife body and a knife tip, characterized in that the upper surface of the knife base is provided with multiple groups of second fixing blocks, a circular groove is provided in the knife base, a knife retreat groove is provided on the bottom surface of the knife base, the knife retreat groove is communicated with the circular groove, a circular hole is provided on the peripheral side surface of the knife base, the circular hole is communicated with the circular groove, a wear-resistant coating is provided on the peripheral side surface of the inner wall of the circular groove, a fixing ring is provided on the peripheral side surface of the knife body, multiple groups of fixing grooves are provided on the bottom surface of the fixing ring, a fixing hole is provided on the peripheral side surface of the knife body, a notch is provided on one end surface of the knife body, a first fixing block is provided in the notch, a guide groove is provided on the peripheral side surface of the knife body, a threaded hole is provided on the peripheral side surface of the knife body, a clamping groove is provided on the bottom surface of the knife tip, a diversion groove is provided on the peripheral side surface of the knife tip, and a threaded groove is provided on the peripheral side surface of the knife tip head.

[0007] The shape and size of the second fixing block are adapted to the fixing groove, the second fixing block is snap-fitted with the fixing groove, the shape and size of the circular hole are adapted to the fixing hole, the circular hole and the fixing hole are threadedly connected with a screw pin, and the shape and size of the screw pin are adapted to the circular hole and the fixing hole.

[0008] The thread groove and the threaded hole are threadedly connected with a screw rod, the tool tip is placed in a notch on one end face of the tool body, the shape and size of the thread groove are adapted to the first fixed block, and after the tool tip is rotated 90 degrees counterclockwise, the position of the thread groove is adapted to the threaded hole.

[0009] Two groups of snap-fit ​​plates are symmetrically arranged on the bottom surface of the knife base, a snap-fit ​​gap is arranged between the two groups of snap-fit ​​plates, elastic gaps are symmetrically opened on the sides of the snap-fit ​​plates, the cross section of the snap-fit ​​plates is a semicircular structure, and the longitudinal section of the snap-fit ​​plates is an arc structure.

[0010] The wear-resistant coating is a wear-resistant layer formed by spraying alloy powder on the inner wall of the circular groove of the knife base using plasma spraying technology.

[0011] The utility model has the following beneficial effects:

[0012] The utility model is that the knife body is placed in the knife seat, the fixing hole on the peripheral side of the knife body is aligned with the circular hole on the peripheral side of the knife seat, and the screw is fixed after the alignment, and the second fixing block arranged on the upper surface of the knife seat can be engaged with the fixing groove to prevent the knife body from wearing the inside of the knife seat and the screw under high-intensity work; the peripheral side of the inner wall of the circular groove is provided with a wear-resistant coating, and the wear-resistant coating can prevent the knife body from sliding up and down slightly when working, and wear the inside of the knife seat, and at the same time, the wear-resistant coating greatly enhances the wear resistance and Service life; place the tool tip in the slot on one end face of the tool body, the shape and size of the thread groove are adapted to the first fixed block, the tool tip rotates 90 degrees counterclockwise when engaged, and when the thread groove rotates to a position relative to the threaded hole, the screw is placed in the thread groove to fix it, effectively avoiding the situation where the tool tip can still be used but the tool body is scrapped; when disassembling, unscrew the screw pin, and then use the tool withdrawal groove to push out the tool body; the wear-resistant coating is a wear-resistant layer formed by spraying alloy powder on the inner wall of the circular groove of the tool base using plasma spray welding technology.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of a tool holder of an anti-skid milling machine;

[0016] Figure 2 An exploded view of a non-slip milling machine tool holder;

[0017] Figure 3 It is a picture of the tip of a knife;

[0018] Figure 4 for Figure 3 Sectional view of section AA;

[0019] Figure 5 It is a left side view of a milling cutter head which is easy to maintain;

[0020] Figure 6 for Figure 5 Cross-section of the CC section.

[0021] In the accompanying drawings, the list of parts represented by each reference numeral is as follows: 1. knife base; 101. round hole; 102. second fixing block; 103. knife retreat groove; 2. knife body; 201. guide groove; 202. threaded hole; 203. first fixing block; 204. fixing hole; 205. fixing groove; 3. knife tip; 301. diverter groove; 302. threaded groove; 303. slot; 4. screw; 5. screw pin; 6. snap-in piece; 601. snap-in gap; 602. elastic gap; 7. wear-resistant coating. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-Figure 6As shown, a tool holder of an anti-skid milling machine of the present embodiment comprises a tool base 1, a tool body 2 and a tool tip 3, wherein the upper surface of the tool base 1 is provided with a plurality of second fixing blocks 102, a circular groove is provided in the tool base 1, a tool retreat groove 103 is provided on the bottom surface of the tool base 1, the tool retreat groove 103 is communicated with the circular groove, a circular hole 101 is provided on the peripheral side of the tool base 1, the circular hole 101 is communicated with the circular groove, a wear-resistant coating 7 is provided on the peripheral side of the inner wall of the circular groove, a fixing ring is provided on the peripheral side of the tool body 2, a plurality of fixing grooves 205 are provided on the bottom surface of the fixing ring, a fixing hole 204 is provided on the peripheral side of the tool body 2, a notch is provided on one end surface of the tool body 2, a first fixing block 203 is provided in the notch, a guide groove 201 is provided on the peripheral side of the tool body 2, a threaded hole 202 is provided on the peripheral side of the tool body 2, a clamping groove 303 is provided on the bottom surface of the tool tip 3, a diversion groove 301 is provided on the peripheral side of the tool tip 3, and a threaded groove 302 is provided on the peripheral side of the tool tip head 3.

[0026] Furthermore, the shape and size of the second fixing block 102 are adapted to the fixing groove 205, the second fixing block 102 is snap-fitted with the fixing groove 205, the shape and size of the circular hole 101 are adapted to the fixing hole 204, the circular hole 101 and the fixing hole 204 are internally threadedly connected with a screw pin 5, and the shape and size of the screw pin 5 are adapted to the circular hole 101 and the fixing hole 204.

[0027] Furthermore, a screw 4 is connected to the thread groove 302 and the threaded hole 202, and the blade tip 3 is placed in a groove on one end face of the blade body 2. The shape and size of the thread groove 302 are adapted to the first fixed block 203. After the blade tip 3 is rotated 90 degrees counterclockwise, the position of the thread groove 302 is adapted to the threaded hole 202.

[0028] Furthermore, two groups of snap-in plates 6 are symmetrically arranged on the bottom surface of the knife base 1, a snap-in gap 601 is provided between the two groups of snap-in plates 6, elastic gaps 602 are symmetrically opened on the sides of the snap-in plates 6, the cross-section of the snap-in plates 6 is a semicircular structure, and the longitudinal section of the snap-in plates 6 is an arc structure.

[0029] Furthermore, the wear-resistant coating 7 is formed by spraying alloy powder onto the inner wall of the circular groove of the cutter base 1 using plasma spraying technology to form a wear-resistant layer.

[0030] It should be noted that the knife body 2 is placed in the knife base 1, and the fixing holes 204 on the side of the knife body 2 are aligned with the circular holes 101 on the side of the knife base 1. After alignment, the screw 5 fixes it. The second fixing block 102 arranged on the upper surface of the knife base 1 can be engaged with the fixing groove 205 to prevent the knife body 2 from causing damage to the inside of the knife base 1 and the screw 5 under high-intensity work; the wear-resistant coating 7 is arranged on the side of the inner wall of the circular groove. During operation, the wear-resistant coating 7 can prevent the knife body 2 from sliding up and down slightly when working, causing wear to the inside of the knife base 1. At the same time, the wear-resistant coating 7 greatly enhances the wear resistance of the knife body 2 in the circular groove. The knife tip 3 is placed in the notch on one end face of the knife body 2, and the shape and size of the thread groove 302 are adapted to the first fixed block 203. When engaged, the knife tip 3 rotates 90 degrees counterclockwise. When the thread groove 302 rotates to a position relative to the threaded hole 202, the screw 4 is placed in the thread groove 302 to fix it, effectively avoiding the situation where the knife tip 3 can still be used but the knife body 2 is scrapped; when disassembling, the screw pin 5 is unscrewed, and the knife body 2 is pushed out using the knife retreat groove 103; the wear-resistant coating 7 is a wear-resistant layer formed by spraying alloy powder on the inner wall of the circular groove of the knife base 1 using plasma spray welding technology.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A non-slip milling machine tool holder, comprising a tool base (1), a tool body (2) and a tool tip (3), characterized in that: The upper surface of the knife base (1) is provided with a plurality of second fixing blocks (102); a circular groove is provided in the knife base (1); a knife retreat groove (103) is provided on the bottom surface of the knife base (1); the knife retreat groove (103) is communicated with the circular groove; a circular hole (101) is provided on the peripheral side of the knife base (1); the circular hole (101) is communicated with the circular groove; a wear-resistant coating (7) is provided on the peripheral side of the inner wall of the circular groove; a fixing ring is provided on the peripheral side of the knife body (2); and a plurality of fixing grooves ( 205), a fixing hole (204) is provided on the peripheral side of the blade body (2), a notch is provided on one end face of the blade body (2), a first fixing block (203) is arranged in the notch, a guide groove (201) is provided on the peripheral side of the blade body (2), a threaded hole (202) is provided on the peripheral side of the blade body (2), a clamping groove (303) is provided on the bottom surface of the blade tip (3), a diverter groove (301) is provided on the peripheral side of the blade tip (3), and a threaded groove (302) is provided on the peripheral side of the head of the blade tip (3).

2. The anti-skid tool holder of a milling machine according to claim 1, characterized in that: The shape and size of the second fixing block (102) are compatible with the fixing groove (205); the second fixing block (102) and the fixing groove (205) are snap-fitted together; the shape and size of the circular hole (101) are compatible with the fixing hole (204); the circular hole (101) and the fixing hole (204) are internally threadedly connected with a screw pin (5); the shape and size of the screw pin (5) are compatible with the circular hole (101) and the fixing hole (204).

3. The anti-skid tool holder of a milling machine according to claim 1, characterized in that: The threaded groove (302) and the threaded hole (202) are internally threadedly connected with a screw rod (4); the blade tip (3) is placed in a notch on one end face of the blade body (2); the shape and size of the threaded groove (302) are adapted to the first fixed block (203); and after the blade tip (3) is rotated 90 degrees counterclockwise, the position of the threaded groove (302) is adapted to the threaded hole (202).

4. The anti-skid tool holder of a milling machine according to claim 1, characterized in that: Two groups of snap-in plates (6) are symmetrically arranged on the bottom surface of the knife base (1), a snap-in gap (601) is provided between the two groups of snap-in plates (6), elastic gaps (602) are symmetrically provided on the side surfaces around the snap-in plates (6), the cross section of the snap-in plates (6) is a semicircular structure, and the longitudinal section of the snap-in plates (6) is an arc-shaped structure.

5. The anti-skid tool holder of a milling machine according to claim 1, characterized in that: The wear-resistant coating (7) is a wear-resistant layer formed by spraying alloy powder onto the inner wall of the circular groove of the knife base (1) using plasma spraying technology.

Images