Tool bit structure convenient to maintain

Abstract

The utility model relates to the technical field of tool bits, and discloses a tool bit structure convenient to maintain, which comprises a tool apron, two assembly parts and a driving part used for driving the two assembly parts to get close to each other or get away from each other are installed on the tool apron, and an elastic arc-shaped arch frame of a U-shaped structure is hinged to the bottoms of the two assembly parts. A plurality of scraper heads are detachably connected to the periphery of the elastic arc-shaped lagging jack. According to the tool bit structure convenient to maintain, the elastic arc-shaped arch frame with the adjustable arc size is used, the multiple sections of scraper bits are assembled, the adaptability and efficiency of tunnel inner wall finishing are improved, the scraper bits are more attached to the tunnel inner wall when a tunnel is cleaned, and therefore the more uniform finishing effect is achieved, and meanwhile the tool bit structure is convenient to maintain. Due to the detachable connection design of the scraper head, the maintenance and replacement processes are simplified, the maintenance cost is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter heads, in particular to a cutter head structure that is easy to maintain. Background Art

[0002] During tunnel construction, a scraper mounted on a robotic arm is usually used to scrape off protrusions on the tunnel inner wall and ensure the flatness of the primary support. The use of the scraper can effectively control the flatness of the initial shotcrete, reduce secondary treatment of the primary support surface, improve the quality of the tunnel lining, and effectively prevent the back of the lining from being voided. In actual operation, the scraper is scraped and leveled against the arch frame to avoid local unevenness. In addition, the scraper process also includes promptly removing the local protruding concrete on the primary support surface after the re-spraying is completed. This is done using a wet spraying robotic arm scraper and shovel to improve construction efficiency and quality.

[0003] In the prior art, scrapers are usually fixedly mounted on a robotic arm. Since the curved surfaces of tunnels vary in size, the existing scrapers cannot be adjusted to adapt to tunnels of different sizes, which limits their scope of application and flexibility.

[0004] In order to solve the above problems, the present application proposes a cutter head structure that is easy to maintain. Utility Model Content

[0005] Based on the technical problems existing in the background technology, the utility model proposes a cutter head structure that is easy to maintain.

[0006] The utility model provides a cutter head structure that is easy to maintain, comprising a cutter seat;

[0007] The tool holder is provided with two assembly parts and a driving part for driving the two assembly parts to move closer to or away from each other, and the bottoms of the two assembly parts are hinged with a U-shaped elastic arc arch;

[0008] The outer periphery of the elastic arc-shaped arch frame is detachably connected with a plurality of scraper heads.

[0009] Preferably, the assembly part includes a slider, a slide groove is provided at the bottom of the tool holder, the two sliders are slidably connected to the slide groove, the two sliders are driven by a driving member to move closer to or away from each other, and an assembly rod is installed at the bottom of the two sliders, and the two ends of the elastic arc arch are respectively hinged to the two assembly rods.

[0010] Preferably, the elastic arc-shaped arch frame is provided with a plurality of spaced-apart sockets, a screw is installed on the inner side of several of the scraper heads, and several of the screws pass through the corresponding sockets respectively, and a locking piece for locking the screw is provided on the elastic arc-shaped arch frame.

[0011] Preferably, the locking member includes a plurality of nuts, which are respectively threadedly sleeved on a plurality of screw rods and abut against the inner side of the elastic arc-shaped arch.

[0012] Preferably, the driving member includes two mounting cylinders and two electric push rods, the two mounting cylinders are respectively installed on both sides of the tool holder, the two electric push rods are respectively installed in the two mounting cylinders, and the two sliders are respectively connected to the two electric push rods and are driven by the two electric push rods to move closer to or away from each other.

[0013] The above technical solution of the utility model has the following beneficial technical effects:

[0014] By setting up the elastic arc arch and scraper head, the knife holder can be installed on the robotic arm during use, and then the two assembly parts can be driven closer or farther away from each other by the driving part according to the curvature of the tunnel, so as to adjust the curvature of the elastic arc arch, and then the protrusions on the inner wall of the tunnel can be cleaned by the scraper head at the corresponding position on the elastic arc arch. Since the scraper head and the elastic arc arch are detachably connected, when the corresponding scraper head is damaged, it can be replaced in time, and it is also convenient to maintain the scraper head. This structure improves the adaptability and efficiency of the tunnel inner wall dressing by using an elastic arc arch with adjustable arc size and assembling multiple scraper heads. When cleaning the tunnel, the scraper head fits more closely to the inner wall of the tunnel, thereby achieving a more uniform dressing effect. At the same time, the detachable connection design of the scraper head also simplifies the maintenance and replacement process, reduces maintenance costs, and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a cutter head structure that is easy to maintain proposed by the utility model.

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the local structure in.

[0017] Figure 3 For this utility model Figure 2 A magnified view of center.

[0018] Figure numerals: 1. Blade holder; 2. Assembly part; 21. Slider; 22. Assembly rod; 3. Driving part; 31. Mounting cylinder; 32. Electric push rod; 4. Elastic arc arch; 5. Scraper head; 6. Screw; 7. Nut; 8. Socket. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0020] like Figure 1-3 As shown, the utility model proposes a cutter head structure that is easy to maintain, including a cutter seat 1;

[0021] In this embodiment, two assembly parts 2 and a driving member 3 for driving the two assembly parts 2 to move toward or away from each other are installed on the tool holder 1 .

[0022] In this embodiment, the bottom of the two assembly parts 2 is hinged with an elastic arc arch frame 4 of a U-shaped structure. The assembly part 2 includes a slider 21. A slide groove is provided at the bottom of the tool holder 1. The two sliders 21 are slidably connected to the slide groove. The two sliders 21 are driven by the driving member 3 to move closer to or away from each other. The driving member 3 includes two mounting cylinders 31 and two electric push rods 32. The two mounting cylinders 31 are respectively installed on both sides of the tool holder 1. The two electric push rods 32 are respectively installed in the two mounting cylinders 31. The two sliders 21 are respectively connected to the two electric push rods 32 and are driven by the two electric push rods 32 to move closer to or away from each other. The bottom of the two sliders 21 is installed with an assembly rod 22. The two ends of the elastic arc arch frame 4 are respectively hinged to the two assembly rods 22.

[0023] In this embodiment, the outer periphery of the elastic arc arch 4 is detachably connected to a plurality of scraper heads 5, and a plurality of spaced-apart sockets 8 are provided on the elastic arc arch 4. Screws 6 are installed on the inner sides of the scraper heads 5, and the plurality of screws 6 pass through the corresponding sockets 8 respectively. The elastic arc arch 4 is provided with a locking member for locking the screw 6, and the locking member includes a plurality of nuts 7, which are respectively threadedly sleeved on the plurality of screws 6 and abut against the inner side of the elastic arc arch 4.

[0024] It should be noted that: when in use, the knife holder 1 can be installed on the robot arm, and then the two sliders 21 can be driven to move closer or farther from each other according to the curvature of the tunnel by the two electric push rods 32, so as to adjust the curvature of the elastic arc arch 4. Since the two ends of the elastic arc arch 4 are hinged to the assembly rod 22, when the curvature of the elastic arc arch 4 is changed, the two ends of the elastic arc arch 4 have a certain amount of activity space, and then the scraper head 5 at the corresponding position on the elastic arc arch 4 can be used to clean the protrusions on the inner wall of the tunnel. During use, when the corresponding scraper head 5 is damaged, After it breaks, the nut 7 on the screw 6 connected to the scraper head 5 can be unscrewed, and the screw 6 on the scraper head 5 can be pulled out from the socket 8, and the scraper head 5 can be replaced, which is convenient for maintenance of the scraper head 5. This structure improves the adaptability and efficiency of tunnel inner wall dressing by using an elastic arc arch frame 4 with adjustable arc size and assembling multiple sections of scraper heads 5. When cleaning the tunnel, the scraper head 5 fits more closely to the tunnel inner wall, thereby achieving a more uniform dressing effect. At the same time, the detachable connection design of the scraper head 5 also simplifies the maintenance and replacement process, reduces maintenance costs, and improves construction efficiency.

[0025] In a specific embodiment, in order to facilitate the adjustment of the distance between multiple scraper heads 5, the screw 6 on the scraper head 5 can be inserted into the corresponding socket 8 in the elastic arc-shaped arch frame 4 as needed, and then the nut 7 can be tightened on the screw 6 to lock the scraper head 5, thereby realizing the adjustment of the distance between the scraper heads 5.

[0026] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A cutter head structure that is easy to maintain, comprising a cutter seat (1), characterized in that: Two assembly parts (2) and a driving part (3) for driving the two assembly parts (2) to move closer to or away from each other are installed on the knife seat (1); the bottoms of the two assembly parts (2) are hinged with an elastic arc-shaped arch (4) with a U-shaped structure; The outer periphery of the elastic arc-shaped arch (4) is detachably connected to a plurality of scraper heads (5).

2. A cutter head structure that is easy to maintain according to claim 1, characterized in that: The assembly part (2) includes a slider (21), a slide groove is provided at the bottom of the tool holder (1), and the two sliders (21) are slidably connected to the slide groove. The two sliders (21) are driven by the driving member (3) to move closer to or away from each other. The bottoms of the two sliders (21) are each installed with an assembly rod (22), and the two ends of the elastic arc-shaped arch (4) are respectively hinged to the two assembly rods (22).

3. The cutter head structure easy to maintain according to claim 2, characterized in that: The elastic arc-shaped arch frame (4) is provided with a plurality of insertion holes (8) arranged at intervals, a screw rod (6) is installed on the inner side of a plurality of the scraper heads (5), and the plurality of the screw rods (6) respectively pass through the corresponding insertion holes (8), and a locking piece for locking the screw rod (6) is provided on the elastic arc-shaped arch frame (4).

4. The cutter head structure easy to maintain according to claim 3, characterized in that: The locking member comprises a plurality of nuts (7), which are respectively threadedly sleeved on a plurality of screw rods (6) and abut against the inner side of the elastic arc-shaped arch frame (4).

5. The cutter head structure easy to maintain according to claim 2, characterized in that: The driving member (3) comprises two mounting cylinders (31) and two electric push rods (32). The two mounting cylinders (31) are respectively mounted on both sides of the knife seat (1). The two electric push rods (32) are respectively mounted in the two mounting cylinders (31). The two sliding blocks (21) are respectively connected to the two electric push rods (32) and are driven by the two electric push rods (32) to move closer to or farther away from each other.

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