Pipe jacking machine with tool bit convenient to replace

Abstract

The utility model discloses a pipe jacking machine with a tool bit convenient to replace, and relates to the technical field of pipe jacking machines. The cutter head comprises a cutter head body, a plurality of cutters are evenly distributed on the upper side of the cutter head body, an installation groove is formed in the upper side of the cutter head body, a cutting drill bit is placed in the installation groove, and a clamping groove is formed in the outer side wall of the cutting drill bit. And the threaded rods are rotationally matched in the cutter head, the threaded rods are in threaded fit with inclined plane clamping blocks, and one ends of the inclined plane clamping blocks are located in the clamping grooves. Through the arrangement of the threaded rod, the threaded rod drives the slope clamping block to slide in and out of the clamping groove under the action of a worker, so that the slope clamping block fixes and unfixes the cutting drill bit through the clamping groove, and the cutting drill bit is more convenient to disassemble and assemble; and the problem that the cutting drill bit easily slides out of the mounting groove is solved.

Description

Technical Field

[0001] The utility model belongs to the field of pipe jacking machines, and in particular relates to a pipe jacking machine which is convenient for replacing a cutter head. Background Art

[0002] Pipe jacking construction is a trenchless construction method, a pipeline burial construction technology that does not involve excavation or requires minimal excavation. During the construction process of the pipe jacking machine, the cutter head will gradually be damaged due to the need to continuously dig rocks, thereby reducing the construction efficiency of the pipe jacking machine, so the cutter head needs to be replaced.

[0003] The patent application with the announcement number CN217107016U discloses a pipe jacking machine that is convenient for replacing the cutter head, including: a cutter head with a vertically arranged axis, a mounting groove coaxially provided on the upper end of the cutter head, a cutting drill bit coaxially disassembled and connected in the mounting groove, characterized in that two clamping grooves arranged symmetrically in the left and right are provided on the outer edge of the cutting drill bit, and a quick-release fixing device with two clamping grooves corresponding to each other is provided in the cutter head. Each of the quick-release fixing devices includes a transverse groove provided in the cutter head and connected to the corresponding side clamping groove, each transverse groove in the cutter head is connected to a transversely arranged sliding groove at one end away from the axis of the cutter head, two accommodating grooves are provided on the outer edge surface of the cutter head, each transverse groove is horizontally slidably matched with a wedge block plugged into the corresponding side clamping groove, and a docking flange is provided to realize the quick disassembly connection between the cutter head and the pipe jacking machine equipment; the cutting drill bit provided can realize the quick installation and replacement of the cutting drill bit through the quick-release fixing device.

[0004] However, the above technology has the following disadvantages when used:

[0005] According to the description in paragraph 0027 of the above-mentioned document, “Just pull the pull ring outward, the pull ring will drive the cross bar to move outward along the slide slot, and at the same time, the wedge block will also move outward along the cross slot with the cross bar. Under the action of the pull ring, the wedge block can be separated from the slot, and the cutting drill bit can be taken out of the installation slot at this time.” Figure 1 It can be seen that the user is required to pull the pull ring outwards, and since the spring is easily deformed during use, it is easy to cause the wedge block to pop out from the slot, thereby causing the cutting drill bit to slip out of the mounting slot.

[0006] Therefore, a pipe jacking machine which is convenient for replacing the cutter head is proposed to solve the above-mentioned drawbacks. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a pipe jacking machine which is convenient for replacing a cutter head.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0009] A pipe jacking machine that is convenient for replacing a cutter head comprises a cutter disc, a plurality of cutting knives are evenly arranged on the upper side of the cutter disc, a mounting groove is provided on the upper side of the cutter disc, a cutting drill bit is placed inside the mounting groove, and a clamping groove is provided on the outer side wall of the cutting drill bit;

[0010] A plurality of threaded rods are rotatably engaged with the inside of the cutter disc, and a bevel clamping block is threadedly engaged with the threaded rods, and one end of the bevel clamping block is located inside the clamping groove.

[0011] Optionally, a plurality of T-shaped grooves are provided on the upper side of the cutter disc, an I-shaped block is installed inside the T-shaped groove, the cutting tool is installed on the upper side of the I-shaped block, a plurality of through holes, a plurality of annular grooves, and a plurality of first guide grooves are provided on the cutter disc, adjacent annular grooves are connected to the through holes, the threaded rod is rotatably engaged inside the through holes, adjacent first guide grooves are connected to the through holes, an annular plate is installed on the threaded rod, the annular plate is rotatably engaged inside the annular groove, and a rotating disk is installed on the first end of the threaded rod, which facilitates the installation of the rotating disk on one end of the threaded rod.

[0012] Optionally, a second guide groove is provided on the cutting drill bit, a guide rod is installed inside the first guide groove, one end of the guide rod is located inside the second guide groove, a threaded hole is provided on one side of the bevel block, the second end of the threaded rod is threadedly engaged inside the threaded hole, and a docking flange is installed at the bottom of the cutter disc to facilitate the installation of the docking flange at the bottom of the cutter disc.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] The threaded rod is arranged so that the threaded rod can drive the inclined surface block to slide in and out of the inside of the slot under the action of the staff, so that the inclined surface block can fix and release the cutting drill bit through the slot, making the process of disassembling and assembling the cutting drill bit more convenient and reducing the problem of the cutting drill bit easily slipping out of the installation slot.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] In the figure:

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 This is a bottom view structural diagram of an embodiment of the utility model;

[0020] Figure 3 The cross-sectional structure of an embodiment of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The cross-sectional structure of an embodiment of the utility model is shown in FIG. Figure 2 .

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] Cutter disc 1, T-slot 101, I-shaped block 102, cutting knife 103, mounting groove 104, cutting drill bit 105, through hole 106, annular groove 107, first guide groove 108, clamping groove 109, threaded hole 110, second guide groove 111, guide rod 112, inclined clamping block 113, docking flange 114, threaded rod 2, rotating disk 201, annular plate 202.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The utility model will now be further described in detail with reference to the accompanying drawings.

[0026] See also Figure 1-4 As shown, in this embodiment, a pipe jacking machine for facilitating the replacement of a cutter head is provided, comprising a cutter disc 1, a plurality of cutting knives 103 are evenly arranged on the upper side of the cutter disc 1, a mounting groove 104 is provided on the upper side of the cutter disc 1, a cutting drill bit 105 is placed inside the mounting groove 104, and a clamping groove 109 is provided on the outer side wall of the cutting drill bit 105;

[0027] A plurality of threaded rods 2 are rotatably engaged with the inside of the cutter disc 1 . A bevel clamping block 113 is threadedly engaged with the threaded rods 2 . One end of the bevel clamping block 113 is located inside the clamping groove 109 .

[0028] First, place the cutting drill bit 105 inside the cutter disc 1 through the mounting groove 104, then rotate the threaded rod 2, one end of the threaded rod 2 drives the inclined surface block 113 to slide into the groove 109 through the threaded hole 110 and positions the cutting drill bit 105 inside the mounting groove 104, thereby completing the installation of the cutting drill bit 105.

[0029] The threaded rod 2 is set so that the threaded rod 2 can drive the inclined surface block 113 to slide in and out of the inside of the slot 109 under the action of the staff, so that the inclined surface block 113 can fix and release the cutting drill bit 105 through the slot 109, making the process of disassembling and assembling the cutting drill bit 105 more convenient, and reducing the problem of the cutting drill bit 105 easily slipping out of the installation slot 104.

[0030] A plurality of T-shaped grooves 101 are provided on the upper side of the cutter disc 1 of the present embodiment, an I-shaped block 102 is installed inside the T-shaped groove 101, a cutting knife 103 is installed on the upper side of the I-shaped block 102, a plurality of through holes 106, a plurality of annular grooves 107, and a plurality of first guide grooves 108 are provided on the cutter disc 1, adjacent annular grooves 107 are connected with the through holes 106, the threaded rod 2 is rotatably fitted inside the through holes 106, adjacent first guide grooves 108 are connected with the through holes 106, an annular plate 202 is installed on the threaded rod 2, the annular plate 202 is rotatably fitted inside the annular groove 107, a rotating disk 201 is installed at the first end of the threaded rod 2, so as to facilitate the installation of the rotating disk 201 on one end of the threaded rod 2.

[0031] A second guide groove 111 is provided on the cutting drill bit 105 of the present embodiment, a guide rod 112 is installed inside the first guide groove 108, one end of the guide rod 112 is located inside the second guide groove 111, a threaded hole 110 is provided on one side of the inclined surface block 113, the second end of the threaded rod 2 is threadedly engaged inside the threaded hole 110, and a docking flange 114 is installed at the bottom of the cutter disc 1, which facilitates the installation of the docking flange 114 at the bottom of the cutter disc 1.

[0032] It should be noted that the utility model is a pipe jacking machine that is easy to replace the cutter head, including: a cutter disc 1, a T-slot 101, an I-shaped block 102, a cutting knife 103, a mounting groove 104, a cutting drill bit 105, a through hole 106, an annular groove 107, a first guide groove 108, a clamping groove 109, a threaded hole 110, a second guide groove 111, a guide rod 112, a bevel clamping block 113, a docking flange 114, a threaded rod 2, a rotating disk 201, and an annular plate 202. All components are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to technicians through technical manuals or through conventional experimental methods.

[0033] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A pipe jacking machine that is easy to replace the cutter head, characterized in that: include: A cutter disc (1), wherein a plurality of cutting knives (103) are evenly distributed on the upper side of the cutter disc (1), a mounting groove (104) is provided on the upper side of the cutter disc (1), a cutting drill bit (105) is placed inside the mounting groove (104), and a clamping groove (109) is provided on the outer side wall of the cutting drill bit (105); A plurality of threaded rods (2) are rotatably engaged inside the cutter disc (1), wherein a bevel clamping block (113) is threadably engaged on the threaded rods (2), and one end of the bevel clamping block (113) is located inside the clamping groove (109).

2. A pipe jacking machine that is easy to replace the cutter head according to claim 1, characterized in that: A plurality of T-shaped slots (101) are provided on the upper side of the cutter disc (1), an I-shaped block (102) is installed inside the T-shaped slot (101), and the cutting blade (103) is installed on the upper side of the I-shaped block (102).

3. A pipe jacking machine with easy replacement of cutter heads according to claim 1, characterized in that: The cutter disc (1) is provided with a plurality of through holes (106), a plurality of annular grooves (107), and a plurality of first guide grooves (108); adjacent annular grooves (107) are connected to the through holes (106); the threaded rod (2) is rotatably engaged inside the through holes (106); and adjacent first guide grooves (108) are connected to the through holes (106).

4. A pipe jacking machine with easy replacement of cutter heads according to claim 3, characterized in that: An annular plate (202) is mounted on the threaded rod (2), the annular plate (202) rotatably fits inside the annular groove (107), and a rotating disk (201) is mounted on the first end of the threaded rod (2).

5. The pipe jacking machine with easy replacement of cutter heads according to claim 3, characterized in that: The cutting drill bit (105) is provided with a second guide groove (111), a guide rod (112) is installed inside the first guide groove (108), and one end of the guide rod (112) is located inside the second guide groove (111).

6. A pipe jacking machine with easy replacement of cutter heads according to claim 1, characterized in that: A threaded hole (110) is provided on one side of the inclined surface block (113); the second end of the threaded rod (2) is threadedly engaged inside the threaded hole (110); and a docking flange (114) is provided at the bottom of the cutter disc (1).

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