Cutterhead stirring rod structure for cutterhead deslagging system

Abstract

The utility model provides a cutterhead stirring rod structure for a cutterhead deslagging system, which belongs to the technical field of cutterhead deslagging and comprises a base and a slag scraping plate group structure. According to the utility model, by designing the structure of the base and the slag scraping plate group, the base is vertically and fixedly arranged on the main vertical rib at the back of the cutter head and rotates along with the rotation of the cutter head, so that slag stones in the cutter head are stirred, the flow plasticity is enhanced, large slag stones can be crushed, and the condition that the large slag stones flow to the slag chute to block the slag chute is prevented; the slag scraping plate group structure can hang broken rock slices and discharge the broken rock slices to a slag sliding opening in time to prevent residual slag stones in the cutter head from causing secondary impact and abrasion to the cutter head and the cutter, and the service life of the cutter head body, the cutter holder, the hobbing cutter and other parts is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter disc deslagging, in particular to a cutter disc stirring rod structure used in a cutter disc deslagging system. Background Art

[0002] The full-face rock tunnel boring machine (TBM) is a representative large-scale mechanical equipment in the field of tunnel excavation. The cutterhead is the core component of the TBM, and its service life directly determines the service life of the TBM cutterhead. During the excavation process, due to the harsh excavation environment, the cutterhead body, cutter seat, hob and other components suffer varying degrees of damage before reaching the expected service life, resulting in huge economic losses.

[0003] Among them, the common factors that affect the service life of the cutter disc body, cutter seat, roller cutter and other components are: residual slag causes secondary impact and wear on the cutter disc. For this reason, the utility model provides a cutter disc stirring rod structure for the cutter disc slag discharge system, which is used to increase the service life of the cutter disc body, cutter seat, roller cutter and other components. Utility Model Content

[0004] In order to solve the problem that residual slag causes secondary impact and wear on the cutter disc, resulting in different degrees of damage to the cutter disc body, cutter seat, hob and other components before reaching the predetermined service life, causing huge economic losses, the utility model provides a cutter disc stirring rod structure for the cutter disc slag discharge system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A knife disc stirring rod structure for a knife disc slag discharge system, comprising:

[0007] A base, the base being vertically fixedly mounted on the main ribs on the back of the cutter head;

[0008] A scraper plate assembly structure, wherein the scraper plate assembly structure is fixedly mounted on the side of the base by screws;

[0009] Among them, the base is in the shape of a folding plate, having a first side plate and a second side plate, and the scraper plate group structure includes a first scraper plate group and a second scraper plate group. The first scraper plate group is fixedly installed on the outer side of the first side plate, and the second scraper plate group is fixedly installed on the outer side of the second side plate.

[0010] As a further description of the above technical solution:

[0011] A first protective member is fixedly installed at the corner of the base.

[0012] As a further description of the above technical solution:

[0013] The first scraper plate group includes a plurality of scraper plate bodies, the top and bottom ends of the scraper plate bodies are both provided with beveled portions, and a second protective member is fixedly installed between two adjacent scraper plate bodies.

[0014] As a further description of the above technical solution:

[0015] A second pressure opening is arranged on the inner side of the top of the scraper plate body, and the side portion of the first protective member is located on the inner side of the second pressure opening.

[0016] As a further description of the above technical solution:

[0017] A first pressure opening is arranged on the inner side of the side edge of the scraper plate body, and the second protection member is located on the inner side of the first pressure opening.

[0018] As a further description of the above technical solution:

[0019] A through hole is arranged on the side of the base, a threaded blind hole is arranged on the inner side of the scraper plate body, and one end of the screw passes through the through hole and is threadedly connected with the threaded blind hole.

[0020] As a further description of the above technical solution:

[0021] The base, the scraper plate assembly structure, the first protective member and the second protective member are all made of wear-resistant alloy.

[0022] Beneficial effects of the utility model:

[0023] The utility model designs a base and a scraper plate group structure. The base is vertically fixed on the main vertical rib on the back of the cutter disc. It rotates with the rotation of the cutter disc to stir the slag inside the disc, thereby enhancing the flow plasticity and also crushing large pieces of slag to prevent the large pieces of slag from flowing into the slag chute and causing blockage of the slag chute. The scraper plate group structure can hang up the broken rock pieces and discharge them to the slag chute in time to prevent the slag remaining in the cutter disc from causing secondary impact and wear on the cutter disc and the tool, thereby increasing the service life of the cutter disc body, tool seat, hob and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate a knife disc stirring rod structure for a knife disc slag discharge system, the following drawings are shown;

[0025] Figure 1 It is a three-dimensional diagram of the utility model;

[0026] Figure 2 It is a front view of the utility model;

[0027] Figure 3 It is a side view of the utility model;

[0028] Figure 4 It is a top view of the utility model;

[0029] Figure 5 It is a three-dimensional schematic diagram of the base of the utility model;

[0030] Figure 6 It is a three-dimensional schematic diagram of the first scraper plate group, the second scraper plate group and the first protective member of the utility model;

[0031] Figure 7 It is a three-dimensional schematic diagram of two adjacent scraper plates and a second protective member of the utility model.

[0032] The reference numerals in the accompanying drawings:

[0033] 1. Main vertical ribs; 2. Base; 21. First side panel; 22. Second side panel; 3. Screws; 4. Scraper plate assembly structure; 41. First scraper plate assembly; 41a. Scraper plate body; 41a1. First pressure port; 41a2. Bevel portion; 41a3. Second pressure port; 42. Second scraper plate assembly; 5. First protective member; 6. Second protective member; 7. Through hole. DETAILED DESCRIPTION

[0034] Please refer to the attached Figure 1-Figure 7 , shows a blade disc stirring rod structure for a blade disc slag discharge system provided in an embodiment of the present application, including: a base 2 and a scraper plate group structure 4.

[0035] Among them, the base 2 is vertically fixed on the main vertical rib 1 on the back of the cutter disc, and can be directly fixed by welding, and the reinforcing ribs are welded to make the base 2 and the main vertical rib 1 stably and reliably connected. The base 2 can rotate with the rotation of the cutter disc, and the scraper plate group structure 4 is fixedly installed on the side of the base 2 by screws 3. The scraper plate group structure 4 directly contacts the crushed rock by impact, friction, etc., so as to protect the base 2, and the rock chips are mainly crushed by the shape and structure of the scraper plate group structure 4.

[0036] By adopting the installation method of the screws 3 , the scraper plate assembly structure 4 can be replaced with a new one after the scraper plate assembly structure 4 is worn.

[0037] Among them, the base 2 is in the shape of a folding plate, having a first side plate 21 and a second side plate 22, the scraper plate group structure 4 includes a first scraper plate group 41 and a second scraper plate group 42, the first scraper plate group 41 is fixedly installed on the outer side of the first side plate 21, and the second scraper plate group 42 is fixedly installed on the outer side of the second side plate 22.

[0038] The folded plate-shaped base 2 has an inner side and an outer side. The outer side can better stir and guide the crushed rocks, while the inner side has less contact with the crushed rocks and is less prone to wear. The first scraper plate group 41 and the first side plate 21 are both installed on the outer side of the base 2.

[0039] In one embodiment, a first protective member 5 is fixedly installed at a corner of the base 2 to protect the portion of the base 2 that is not blocked by the first scraper plate assembly 41 and the second scraper plate assembly 42 .

[0040] In one embodiment, the first scraper plate group 41 includes a plurality of scraper plate bodies 41a, and the top and bottom ends of the scraper plate bodies 41a are provided with bevel portions 41a2, so that the top and bottom of the scraper plate bodies 41a form a trapezoidal head structure. The trapezoidal head structure is more impact-resistant than the pointed head and can crush rock flakes. A second protective member 6 is fixedly installed between two adjacent scraper plate bodies 41a, which is used to protect the base 2 in an unobstructed area between the two adjacent scraper plate bodies 41a.

[0041] In one embodiment, a second pressure opening 41 a 3 is disposed on the inner side of the top of the scraper body 41 a , and the side of the first protection member 5 is located on the inner side of the second pressure opening 41 a 3 .

[0042] When the scraper blade body 41a is installed, the second protection member 5 is pressed and fixed by the second pressing opening 41a3.

[0043] In one embodiment, a first pressure opening 41 a 1 is disposed on the inner side of the side edge of the scraper blade body 41 a , and the second protection member 6 is located on the inner side of the first pressure opening 41 a 1 .

[0044] When the scraper blade body 41 a is installed, the second protection member 6 is pressed and fixed by the first pressing opening 41 a 1 .

[0045] In one embodiment, a through hole 7 is provided on the side of the base 2, and a threaded blind hole is opened on the inner side of the scraper plate body 41a. One end of the screw 3 passes through the through hole 7 and is threadedly connected with the threaded blind hole. The design of the threaded blind hole structure on the inner side of the scraper plate body 41a makes the outer side of the scraper plate body 41a smooth, without a hole structure, and not easily damaged by broken rocks.

[0046] In one embodiment, the base 2, the scraper plate assembly structure 4, the first protective member 5, and the second protective member 6 are all made of wear-resistant alloys, so that the base 2, the scraper plate assembly structure 4, the first protective member 5, and the second protective member 6 can withstand long-term rock wear.

[0047] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the disclosure of the present invention. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0048] It should be understood that relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A knife disc stirring rod structure for a knife disc slag discharge system, characterized in that: include: A base (2), wherein the base (2) is vertically fixedly mounted on the main rib (1) on the back of the cutter head; A scraper plate assembly structure (4), wherein the scraper plate assembly structure (4) is fixedly mounted on a side surface of the base (2) by means of screws (3); The base (2) is in the shape of a folded plate and has a first side plate (21) and a second side plate (22); the scraper plate group structure (4) comprises a first scraper plate group (41) and a second scraper plate group (42); the first scraper plate group (41) is fixedly mounted on the outer side of the first side plate (21), and the second scraper plate group (42) is fixedly mounted on the outer side of the second side plate (22).

2. The blade disc stirring rod structure for a blade disc slag discharge system according to claim 1, characterized in that: A first protective member (5) is fixedly mounted at a corner of the base (2).

3. The knife disc stirring rod structure for a knife disc slag discharge system according to claim 2, characterized in that: The first scraper plate group (41) comprises a plurality of scraper plate bodies (41a), the top and bottom ends of the scraper plate bodies (41a) are both provided with beveled portions (41a2), and a second protective member (6) is fixedly installed between two adjacent scraper plate bodies (41a).

4. The blade disc stirring rod structure for a blade disc slag discharge system according to claim 3, characterized in that: A second pressure opening (41a3) is provided on the inner side of the top of the scraper plate body (41a), and the side portion of the first protective member (5) is located on the inner side of the second pressure opening (41a3).

5. The blade disc stirring rod structure for a blade disc slag discharge system according to claim 3, characterized in that: A first pressure opening (41a1) is provided on the inner side of the side edge of the scraper plate body (41a), and the second protective member (6) is located on the inner side of the first pressure opening (41a1).

6. The blade disc stirring rod structure for a blade disc slag discharge system according to claim 3, characterized in that: A through hole (7) is provided on the side of the base (2), a threaded blind hole is provided on the inner side of the scraper plate body (41a), and one end of the screw (3) passes through the through hole (7) and is threadedly connected to the threaded blind hole.

7. The blade disc stirring rod structure for a blade disc slag discharge system according to claim 3, characterized in that: The base (2), the scraper plate assembly structure (4), the first protective member (5) and the second protective member (6) are all made of wear-resistant alloy.

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