Rotary excavating reamer with rotary excavating teeth

Abstract

The utility model relates to a rotary digging reamer with rotary digging teeth, which comprises a rotary digging reamer body, the rotary digging reamer body is formed by combining a plurality of rotary digging teeth, the number of the rotary digging teeth is at least three, each rotary digging tooth is composed of a working tooth head and a mounting seat, and a tooth head seat with an assembly groove is arranged at the top of the mounting seat. A working tooth head is embedded and welded in the tooth head seat and is used for carrying out rotary excavating operation, a mounting through hole and a bolt through hole are respectively formed in the side body of the mounting seat, and a hard alloy strip matched with the mounting through hole is inserted and mounted in the mounting through hole and is used for improving the overall strength and wear resistance of the mounting seat; after the adjacent mounting bases are tightly attached to each other and combined to form the rotary excavating reamer, bolts are sequentially inserted into the bolt through holes, and connection and mounting between the rotary excavating reamer and the rotary excavating machine are achieved. The utility model has the advantages of reasonable structure, stable assembly, good firmness, convenient installation and disassembly, high hardness and high wear resistance, greatly improved working efficiency, prolonged service life and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rotary excavator accessory technical field relates to a rotary excavator with rotary digging tooth. BACKGROUND

[0002] Rotary excavator is a kind of construction machinery suitable for hole forming operation in building foundation engineering. It is mainly suitable for sand, clay, silty soil and other soil construction, and is widely used in cast-in-place pile, continuous wall, foundation reinforcement and other various foundation construction, which can meet the requirements of various large-scale foundation construction. The rotary excavator of the existing rotary excavator is generally of one-piece structure, and the hard alloy tooth tip is installed at the end of the one-piece structure, but the structure has the following problems: first, the whole one-piece rotary excavator is damaged in harsh working environment, and the whole tooth head needs to be replaced frequently, which greatly increases the use cost; second, the strength of the rotary excavator tooth head is not enough, and it is not wear-resistant after long time work, and it is easy to wear and break, which needs maintenance and replacement, reduces the work efficiency and increases the use cost, and there is no protection device on the side surface, which is easy to wear and deform after long time work. Therefore, a rotary excavator with rotary digging tooth is designed to overcome the above problems. SUMMARY

[0003] The utility model aims at overcoming the deficiencies of prior art, and provides a rotary excavator with rotary digging tooth, which has reasonable structure, stable assembly, good firmness, convenient installation and disassembly, high hardness and high wear resistance, greatly improves work efficiency and service life.

[0004] The utility model is realized through the following technical scheme: a rotary excavator with rotary digging tooth, including rotary excavator body, the rotary excavator body is combined by multiple rotary digging teeth, the rotary digging tooth is at least three, and each rotary digging tooth is composed of working tooth head and mounting seat, the top of the mounting seat is provided with the tooth head seat with assembly slot, the working tooth head is embedded and welded in the tooth head seat and is used for rotary digging operation, the mounting seat is provided with mounting through hole and bolt through hole respectively on the side, wherein the hard alloy strip matched with the mounting through hole is inserted into the mounting through hole, to improve the overall strength and wear resistance of the mounting seat, the adjacent mounting seats are combined to form the rotary excavator, and then the bolt is inserted into each bolt through hole in sequence to realize the connection and installation between the rotary excavator and the rotary excavator.

[0005] As preferred: the side of the mounting seat away from the working tooth head is recessed inward, forming a limiting groove with inverted L-shaped structure, two bolt through holes with same size and arranged in upper and lower positions are arranged on the side of the mounting seat in the limiting groove, and the bolt through hole is provided with screw threads, to facilitate the installation of the bolt.

[0006] As preferred: the upper side of the limiting groove is provided with two mounting through holes arranged in left and right and same size on the side of the mounting seat, each mounting through hole is inserted with a long strip hard alloy strip, and the both ends of the hard alloy strip are exposed outside the mounting through hole, so as to improve the overall strength and wear resistance of the mounting seat.

[0007] As preferred: the both ends of the mounting seat away from the working tooth head are provided with arc-shaped protective edges, so as to facilitate installation and reduce wear during installation, and the both ends of the mounting seat close to the working tooth head are inwardly inclined to form two symmetrical slope surfaces, so as to discharge waste and sewage generated during the operation of the working tooth head from the slope surfaces.

[0008] As preferred: the working tooth head is composed of a long strip hard alloy block and a cylindrical PCD tooth head, the long strip hard alloy block is embedded and welded in the assembly groove of the tooth head seat, and the end of the hard alloy block is welded with the cylindrical PCD tooth head, the working tooth heads on the left and right two rotary digging teeth are arranged on the top surface of the mounting seat in an inclined manner, and the working tooth head on the middle rotary digging tooth is flush with the both sides of the top surface of the mounting seat, so as to improve the overall rotary digging effect after the working tooth head is assembled.

[0009] As preferred: the hard alloy block is composed of granular hard alloy or powder hard alloy.

[0010] As preferred: a plurality of uniformly distributed granular diamonds are welded on the end face of the PCD tooth head, so as to improve the working efficiency.

[0011] The utility model discloses the rotary digging cutter with rotary digging tooth has the advantages and beneficial effects that:

[0012] The utility model discloses a rotary digging cutter with rotary digging tooth, working tooth head adopts high -strength high -wear -resisting cylindrical PCD tooth tip to replace traditional hard alloy tooth tip, and tooth tip rear edge back ridge (mounting seat top surface) adopts high -strength and high -wear -resisting scrap alloy surfacing technology to form surfacing layer, and high -strength high -wear -resisting hard alloy cylinder is inlayed on the both sides of mounting seat simultaneously and orderly, and the strength and wear resistance of surface are enhanced to protect tooth head and mounting seat together, and the service life and working efficiency of product are improved greatly, and the lower part of rotary digging cutter body adopts limiting groove and two bolt holes to fix, and installation and removal are convenient, and the whole left -center -right split design is adopted, and the structure part is damaged frequently and replaced whole tooth head due to the technical deficiency or bad operation environment is overcome, and the use cost is reduced greatly.

[0013] The utility model discloses whole rational in structure, firm, and convenient installation and removal, and the use cost is reduced by split design replacement tooth head, and the service life is long, thereby greatly improve working efficiency. DRAWINGS

[0014] Figure 1The first structure schematic view of the utility model.

[0015] Figure 2 The second structure schematic view of the utility model.

[0016] Figure 3 For Figure 1 The A direction schematic view (after assembly) of the utility model.

[0017] Figure 4 For Figure 1 The B direction schematic view in the utility model.

[0018] Figure 5 For Figure 2 The C direction schematic view (after assembly) of the utility model.

[0019] Figure 6 For Figure 2 The D direction schematic view of the utility model. DETAILED DESCRIPTION

[0020] In order to make ordinary skilled in the art more clearly understand the purpose, technical scheme and advantages of the utility model, the following will be further described in conjunction with the drawings and examples.

[0021] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms such as "up", "down", "left", "right", "inner", "outer", "horizontal", "vertical" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model, and is not indicative or suggestive of the device or element indicated must have a particular orientation, therefore, it can not be understood as a limitation on the utility model.

[0022] The utility model will be described in detail in conjunction with the drawings as follows: as Figures 1-2 The utility model discloses a rotary digging reamer with rotary digging tooth, including rotary digging reamer body, the rotary digging reamer body is combined by multiple rotary digging teeth 1, the rotary digging tooth 1 is at least three, and each rotary digging tooth 1 is composed of working tooth head 2 and mounting seat 3, the top of mounting seat 3 is provided with tooth head seat 5 with assembly slot 4, and working tooth head 2 is embedded and welded in tooth head seat 5, is used for carrying out rotary digging operation, and the side body of mounting seat 3 is provided with mounting through hole 6 and bolt through hole 7 respectively, wherein hard alloy strip 8 that is matched is inserted and mounted in mounting through hole 6, is used for improving the overall strength and wear resistance of mounting seat 3, and the adjacent mounting seat 3 is combined to form rotary digging reamer by mutual close combination, then bolt is inserted into each bolt through hole 7 in proper order, and the connection and installation between rotary digging reamer and rotary digging machine are realized.

[0023] The utility model discloses a high -intensity high -wear -resistant hard metal cylinder is inlayed on both sides of the mounting seat orderly, strengthens the strength and wear resistance of surface and protects tooth head and mounting seat together, has improved product service life and work efficiency greatly.

[0024] The mounting seat 3 is recessed inward on the side away from the working tooth head 2, forms the limiting recess 14 of inverted L type structure, two bolt through holes 7 that are arranged up and down and same in size are formed on the side of the mounting seat 3 in the limiting recess 14, the bolt through hole 7 is provided with screw thread inside, and the mounting bolt is convenient.

[0025] The lower part of the rotary digging reamer body is fixed by the limiting recess and two bolt holes, convenient to mount and dismount, the utility model adopts left-middle-right split design, overcomes the damage of structure part caused by technical deficiency or bad working environment, and the whole tooth head is frequently replaced, so that the use cost is greatly reduced.

[0026] As shown in Figures 3-4 The upper side of the limiting recess 14 is provided with two mounting through holes 6 arranged left and right and same in size on the side of the mounting seat 3, the hard alloy strip 8 is inserted into each mounting through hole 6, and the both ends of the hard alloy strip 8 are exposed to the mounting through hole 6, so as to improve the overall strength and wear resistance of the mounting seat 3.

[0027] The both ends of the side of the mounting seat 3 away from the working tooth head 2 are provided with arc-shaped protective edges 9, so as to facilitate installation and reduce wear during installation, and the both ends of the side of the mounting seat 3 close to the working tooth head 2 are inclined inward, forming two symmetrical inclined surfaces 13, so as to discharge waste and sewage generated during the operation of the working tooth head 2.

[0028] As shown in Figures 5-6 The working tooth head 2 is composed of the hard alloy block 10 and the PCD tooth head 11 of cylindrical structure, the hard alloy block 10 is embedded and welded in the assembly groove of the tooth head seat 5, the end of the hard alloy block 10 is welded with the PCD tooth head 11 of cylindrical structure, the working tooth head 2 on the left and right rotary digging teeth is arranged on the top surface of the mounting seat 3 in an inclined manner, and the working tooth heads between the two can be inclined in the same direction or in different directions according to actual conditions, and the working tooth head 2 on the middle rotary digging tooth is flush with the both sides of the top surface of the mounting seat 3, so as to improve the overall rotary digging effect after the assembly of the working tooth head 2.

[0029] The hard alloy block 10 is composed of granular hard alloy or powder hard alloy. A plurality of granular diamonds 12 are welded on the end face of the PCD tooth head 11, so as to improve the working efficiency.

[0030] The rotary digging reamer with rotary digging teeth designed by the utility model adopts high-strength and high-wear-resistance cylindrical PCD tooth tip to replace traditional hard alloy tooth tip, and the tooth tip rear edge back ridge (top surface of the mounting seat) is formed with a surfacing layer by using high-strength and high-wear-resistance surfacing technology.

[0031] The specific embodiments described herein are merely illustrative of the principles of the utility model and its effects, and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A rotary excavating reamer with rotary excavating teeth, comprising a rotary excavating reamer body combined by a plurality of rotary excavating teeth (1), characterized in that: The rotary digging tooth (1) is at least three, each rotary digging tooth (1) is composed of a working tooth head (2) and a mounting seat (3), the top of the mounting seat (3) is provided with a tooth head seat (5) with an assembly groove (4), the working tooth head (2) is embedded and welded in the tooth head seat (5) for rotary digging operation, mounting through holes (6) and bolt through holes (7) are respectively formed on the side of the mounting seat (3), a hard alloy strip (8) matched with the mounting through hole (6) is inserted into the mounting through hole (6) to improve the overall strength and wear resistance of the mounting seat (3), the adjacent mounting seats (3) are combined to form a rotary digging reamer, then bolts are inserted into each bolt through hole (7) in sequence to realize the connection and installation between the rotary digging reamer and the rotary digging machine.

2. The rotary excavating and reaming combination according to claim 1, wherein: The side of the mounting seat (3) away from the working tooth head (2) is recessed inward to form a limiting groove (14) with an inverted L-shaped cross section, two bolt through holes (7) with the same size and arranged in an up-down manner are formed on the side of the mounting seat (3) in the limiting groove (14), and the bolt through hole (7) is provided with a screw thread to facilitate the installation of the bolt.

3. The rotary excavating cutter with rotary excavating teeth of claim 1 or 2, wherein: Two mounting through holes (6) with the same size and arranged in a left-right manner are formed on the side of the mounting seat (3) above the limiting groove (14), and a long strip-shaped hard alloy strip (8) is inserted into each mounting through hole (6), and the two ends of the hard alloy strip (8) are exposed outside the mounting through hole (6) to improve the overall strength and wear resistance of the mounting seat (3).

4. The rotary excavating and reaming combination according to claim 3, wherein: The two ends of the side of the mounting seat (3) away from the working tooth head (2) are provided with arc-shaped protective edges (9) to facilitate installation and reduce wear during installation, and the two ends of the side of the mounting seat (3) close to the working tooth head (2) are inclined inward to form two symmetrical inclined surfaces (13) for discharging waste and sewage generated during the operation of the working tooth head (2).

5. The rotary excavating and reaming combination according to claim 4, wherein: The working tooth head (2) is composed of a long strip-shaped hard alloy block (10) and a cylindrical PCD tooth head (11), the long strip-shaped hard alloy block (10) is embedded and welded in the assembly groove (4) of the tooth head seat (5), the end of the hard alloy block (10) is welded with the cylindrical PCD tooth head (11), the working tooth heads (2) on the left and right rotary digging teeth are inclinedly arranged on the top surface of the mounting seat (3), and the working tooth head (2) on the middle rotary digging tooth is flush with the two sides of the top surface of the mounting seat (3) to improve the overall rotary digging effect of the assembled working tooth head (2).

6. The rotary excavating cutter bit of claim 5 wherein: The hard alloy block (10) is composed of granular hard alloy or powder hard alloy.

7. The rotary excavating cutter bit of claim 5 wherein: A plurality of uniformly distributed granular diamonds (12) are welded on the end face of the PCD tooth head (11) to improve the working efficiency.

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