A machine head crushing structure for pipe jacking construction

Abstract

The utility model relates to the technical field of crushing structures, and in particular to a machine head crushing structure for pipe jacking construction, comprising a cutter disc main body, a splicing groove is provided on the top surface of the cutter disc main body, an assembly sleeve is fixedly connected to the bottom surface of the cutter disc main body, and a cover plate is slidably connected to the inner wall of the splicing groove. The utility model has the advantages that the staff can pass the threaded fastener through the cutter disc main body and the driving disc, and insert the cover plate into the splicing groove. At this time, the nut part of the threaded fastener will be inserted into the limiting groove, and the threaded rod will pass through the cutter disc main body and the driving disc. Then, the nut and the threaded rod are used to preliminarily lock the driving disc, and the driving disc is locked for the second time by the threaded fastener. Moreover, the nut part of the threaded fastener is located in the limiting groove, which can facilitate the installation of the threaded fastener. After the installation is completed, the nut part of the threaded fastener will be blocked in the splicing groove by the cover plate, which can prevent the nut part from colliding with sand and stone.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing structures, in particular to a machine head crushing structure for pipe jacking construction. Background Art

[0002] The head crushing structure for pipe jacking construction is a structure specially designed to crush obstacles during pipe jacking construction. It plays a vital role in the advancement of the pipe jacking machine. The head crushing structure usually includes a roller cutter device and other crushing tools, which can crush obstacles encountered, such as rocks, tree roots, etc., to ensure the smooth progress of pipe jacking construction.

[0003] The main structure of the machine head crushing structure includes a drive system and a cutter disc. The cutter disc is fixedly installed at the output end of the drive system. In order to facilitate the disassembly and assembly of the cutter disc, the cutter disc is usually locked with multiple bolt fasteners, and the nut part of the bolt fastener is located on the front of the cutter disc, which will cause the nut part to contact the soil. When encountering harder sand and gravel, the nut part is very likely to collide with the sand and gravel, which is very likely to cause damage to the nut part of the threaded fastener. Therefore, a machine head crushing structure for pipe jacking construction is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a machine head crushing structure for pipe jacking construction to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides a head crushing structure for pipe jacking construction, including a cutter disc main body, a splicing groove is provided on the top surface of the cutter disc main body, an assembling sleeve is fixedly connected to the bottom surface of the cutter disc main body, a cover plate is slidably connected to the inner wall of the splicing groove, a driving disc is slidably connected to the inner wall of the assembling sleeve, a plurality of threaded rods are fixedly connected to the bottom surface of the cover plate, the cutter disc main body and the driving disc are both slidably connected to the threaded rods, a nut is threadedly connected to the threaded portion of the threaded rod, the nut is fitted with the driving disc, a plurality of crushing knives are fixedly connected to the top surface of the cover plate, a limiting groove is provided on the bottom surface of the cover plate, a plurality of threaded fasteners are rotatably connected to one side of the cutter disc main body, the cutter disc main body is fixedly connected to the driving disc through the threaded fasteners, and the nut portion of the threaded fastener is slidably connected to the cover plate through the limiting groove.

[0007] Preferably, any of the above schemes has a card slot formed on the outer surface of the driving disk, a card plate is fixedly connected to the inner wall of the assembling sleeve, and the card plate is slidably connected to the assembling sleeve via the card slot.

[0008] Preferably, any of the above schemes is that a sealing gasket is fixedly connected to the bottom surface of the cover plate, a sealing groove is formed on the top surface of the cutter disc body, and the sealing gasket is slidably connected to the cutter disc body via the sealing groove.

[0009] Preferably, any of the above schemes is that the cover plate corresponds to the driving disk in upper and lower parts, and the thickness of the driving disk is equal to the height of the assembly sleeve.

[0010] Preferably, any of the above schemes has a cross positioning plate fixedly connected to the inner wall of the splicing groove, a cross positioning groove is provided on the bottom surface of the cover plate, and the cross positioning plate is slidably connected to the cover plate via the cross positioning groove.

[0011] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0012] When the cutter disc is in use, the assembly sleeve can be assembled with the drive disc along the card slot. At this time, the card plate will be located inside the card slot, which can limit the drive disc and prevent the drive disc from rotating inside the limit sleeve. It is also convenient for plugging in the threaded fasteners. Then, the threaded fasteners are passed through the cutter disc body and the drive disc, and the cover plate is inserted into the splicing groove. At this time, the nut part of the threaded fastener will be inserted into the limiting groove, and the threaded rod will pass through the cutter disc body and the drive disc. Then, the nut and the threaded rod are used to preliminarily lock the drive disc, and the drive disc is locked for the second time through the threaded fasteners. The nut part of the threaded fastener is located in the limiting groove, which can facilitate the installation of the threaded fasteners. After the installation is completed, the nut part of the threaded fastener will be blocked in the splicing groove by the cover plate to prevent the nut part from colliding with sand and stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the assembly of the utility model from the first perspective;

[0014] Figure 2 It is a schematic structural diagram of the assembly of the utility model from a second viewing angle;

[0015] Figure 3 It is a schematic diagram of the exploded view structure of the assembly of the utility model;

[0016] Figure 4 This is a structural schematic diagram of the main body of the cutter head of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the cover plate of the utility model.

[0018] In the figure: 1-cutter body, 2-joining groove, 3-assembly sleeve, 4-cover plate, 5-driving plate, 6-threaded rod, 7-nut, 8-crushing knife, 9-limiting groove, 10-threaded fastener, 11-card slot, 12-card plate, 13-sealing gasket, 14-sealing groove, 15-cross positioning plate, 16-cross positioning groove. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0020] like Figures 1 to 5 As shown, a head crushing structure for pipe jacking construction includes a cutter head body 1, a splicing groove 2 is provided on the top surface of the cutter head body 1, an assembling sleeve 3 is fixedly connected to the bottom surface of the cutter head body 1, a cover plate 4 is slidably connected to the inner wall of the splicing groove 2, a driving disc 5 is slidably connected to the inner wall of the assembling sleeve 3, a plurality of threaded rods 6 are fixedly connected to the bottom surface of the cover plate 4, the cutter head body 1 and the driving disc 5 are both slidably connected to the threaded rod 6, a nut 7 is threadedly connected to the threaded portion of the threaded rod 6, and the nut 7 is fitted with the driving disc 5, a plurality of crushing knives 8 are fixedly connected to the top surface of the cover plate 4, a limiting groove 9 is provided on the bottom surface of the cover plate 4, a plurality of threaded fasteners 10 are rotatably connected to one side of the cutter head body 1, the cutter head body 1 is fixedly connected to the driving disc 5 through the threaded fastener 10, and the nut portion of the threaded fastener 10 is slidably connected to the cover plate 4 through the limiting groove 9.

[0021] As an optional technical solution of the utility model, a card slot 11 is provided on the outer surface of the driving disk 5, and a card plate 12 is fixedly connected to the inner wall of the assembly sleeve 3. The card plate 12 is slidably connected to the assembly sleeve 3 through the card slot 11. The card plate 12 will be located inside the card slot 11, which can limit the driving disk 5 and prevent the driving disk 5 from rotating inside the limiting sleeve 3, and facilitate the insertion of the threaded fastener 10.

[0022] As an optional technical solution of the present invention, a sealing gasket 13 is fixedly connected to the bottom surface of the cover plate 4, and a sealing groove 14 is opened on the top surface of the cutter disc body 1. The sealing gasket 13 is slidingly connected to the cutter disc body 1 through the sealing groove 14. After the cover plate 4 is installed, the sealing gasket 13 will be located inside the sealing groove 14, which can make the sealing between the cover plate 4 and the cutter disc body 1 better.

[0023] As an optional technical solution of the utility model, a cross positioning plate 15 is fixedly connected to the inner wall of the splicing groove 2, and a cross positioning groove 16 is opened on the bottom surface of the cover plate 4. The cross positioning plate 15 is slidingly connected to the cover plate 4 through the cross positioning groove 16. The cover plate 4 is clamped with the cutter disc body 1 through the cross positioning plate 15, which can make the connection between the cover plate 4 and the cutter disc body 1 more stable.

[0024] A machine head crushing structure for pipe jacking construction, the working principle is as follows:

[0025] 1): When the cutter disc is used, the assembly sleeve 3 can be assembled with the drive disc 5 along the slot 11 , the threaded fastener 10 is passed through the cutter disc body 1 and the drive disc 5 , and the cover plate 4 is inserted into the splicing slot 2 .

[0026] 2): Use the nut 7 and the threaded rod 6 to preliminarily lock the drive disc 5, and use the threaded fastener 10 to perform secondary locking on the drive disc 5.

[0027] 3): The nut portion of the threaded fastener 10 is located in the limiting groove 9, which can facilitate the installation of the threaded fastener 10. After the installation is completed, the nut portion of the threaded fastener 10 will be blocked in the splicing groove 2 by the cover plate 4.

[0028] To sum up, when the head crushing structure for pipe jacking construction is used for the cutter disc, the assembly sleeve 3 can be assembled with the driving disc 5 along the slot 11. At this time, the clamping plate 12 will be located inside the slot 11, and the driving disc 5 can be limited to prevent the driving disc 5 from rotating inside the limiting sleeve 3, and it is convenient to insert the threaded fastener 10, and then the threaded fastener 10 is passed through the cutter disc body 1 and the driving disc 5, and the cover plate 4 is inserted into the splicing groove 2. At this time, the nut part of the threaded fastener 10 will be inserted into the limiting groove 9, and the threaded rod 6 will pass through the cutter disc body 1 and the driving disc 5. Then, the nut 7 and the threaded rod 6 are used to preliminarily lock the driving disc 5, and the driving disc 5 is locked for the second time by the threaded fastener 10. The nut part of the threaded fastener 10 is located in the limiting groove 9, which can facilitate the installation of the threaded fastener 10. After the installation is completed, the nut part of the threaded fastener 10 will be blocked in the splicing groove 2 by the cover plate 4, which can prevent the nut part from colliding with sand and stones.

Claims

1. A machine head crushing structure for pipe jacking construction, characterized in that: The present invention comprises a cutter disc body (1), wherein a splicing groove (2) is formed on the top surface of the cutter disc body (1), an assembly sleeve (3) is fixedly connected to the bottom surface of the cutter disc body (1), a cover plate (4) is slidably connected to the inner wall of the splicing groove (2), a driving disc (5) is slidably connected to the inner wall of the assembly sleeve (3), a plurality of threaded rods (6) are fixedly connected to the bottom surface of the cover plate (4), the cutter disc body (1) and the driving disc (5) are both slidably connected to the threaded rods (6), and the threaded portion of the threaded rods (6) is threaded. A nut (7) is connected, and the nut (7) fits with the driving disk (5); a plurality of crushing knives (8) are fixedly connected to the top surface of the cover plate (4); a limiting groove (9) is provided on the bottom surface of the cover plate (4); a plurality of threaded fasteners (10) are rotatably connected to one side of the cutter disc body (1); the cutter disc body (1) is fixedly connected to the driving disk (5) through the threaded fasteners (10); and the nut portion of the threaded fastener (10) is slidably connected to the cover plate (4) through the limiting groove (9).

2. The head crushing structure for pipe jacking construction according to claim 1, characterized in that: The outer surface of the driving disk (5) is provided with a clamping groove (11), the inner wall of the assembly sleeve (3) is fixedly connected with a clamping plate (12), and the clamping plate (12) is slidably connected to the assembly sleeve (3) via the clamping groove (11).

3. The head crushing structure for pipe jacking construction according to claim 2, characterized in that: A sealing gasket (13) is fixedly connected to the bottom surface of the cover plate (4), a sealing groove (14) is provided on the top surface of the cutter disc body (1), and the sealing gasket (13) is slidably connected to the cutter disc body (1) via the sealing groove (14).

4. The head crushing structure for pipe jacking construction according to claim 3 is characterized in that: The cover plate (4) corresponds to the driving disk (5) in upper and lower parts, and the thickness of the driving disk (5) is equal to the height of the assembly sleeve (3).

5. The head crushing structure for pipe jacking construction according to claim 4, characterized in that: A cross positioning plate (15) is fixedly connected to the inner wall of the splicing groove (2), a cross positioning groove (16) is provided on the bottom surface of the cover plate (4), and the cross positioning plate (15) is slidably connected to the cover plate (4) via the cross positioning groove (16).

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