Steel plate brush with good wear-resistant effect

Abstract

The utility model discloses a steel plate brush with a good wear-resisting effect, relates to the field of shield tail sealing brushes, and aims to solve the problem that in the prior art, due to the fact that the external pressure of a shield tail is large, part of slurry or mud invades into the last grease cavity, and the wear of a shield tail brush of a tail channel is aggravated. The spring steel plate set comprises twenty-six layers of first spring steel plates and a layer of second spring steel plates which are overlapped, the first spring steel plates are spring steel sheets with the thickness being 0.5 mm, the second spring steel plates are spring steel sheets with the thickness being 1.0 mm, second open holes are formed in the front sections and the rear sections of the break angle portions of the first spring steel plates and the second spring steel plates, and the first open holes are communicated with the second open holes. The twenty-six first spring steel plates and the second spring steel plate are fixed in the mode that first fixing bolts penetrate through the second open holes, the first spring steel plates and the second spring steel plate are each provided with a break angle part, and the break angle parts of the first spring steel plates and the second spring steel plate are connected with a base assembly. The base assembly comprises an L-shaped lower cover plate and an L-shaped upper cover plate.

Description

Technical Field

[0001] The utility model relates to the field of shield tail sealing brushes, in particular to a steel plate brush with good wear resistance. Background Art

[0002] The shield tail sealing brush is an important part of the shield tail sealing system of the shield machine. It is used to form a good seal between the tail of the shield machine and the pipe segment to prevent groundwater, outer soil, lining back grouting, etc. from flowing into the tunnel. The main function of the shield tail sealing brush is to play a vital role in the construction and excavation process of the shield machine to ensure the safety and smooth completion of the project construction. It is installed at the rear end of the shield machine and used together with the shield tail grease to prevent external water, mud, concrete mortar, etc. from entering the shield machine. The design and performance of the shield tail sealing brush directly affect the progress, quality and safety of the shield project. The structure of the shield tail sealing brush usually includes a protective plate, a clamping plate and a stainless steel wire brush, which is fixed to the base plate of the shield tail by pins. A wire brush is sandwiched between the protective plate and the clamping plate to form a whole shield tail brush. A certain amount of viscous grease filler is injected between the shield tail brush to achieve sealing between the shield machine and the pipe segment. This design plays a decisive role in preventing groundwater, outer soil, grouting on the back of the lining, etc. from flowing into the tunnel. One of the functions of the tail shield tail sealing brush is to form the first line to block the invasion of mud outside the shield tail and slurry injected behind the wall into the grease cavity of the shield tail.

[0003] For example, the authorization announcement number CN 207568610 U, a shield tail sealing brush. The shield tail sealing brush includes a brush body and a fixed base plate sleeved on the outer periphery of the tail end of the brush body; the brush body includes a front protective plate, a rear protective plate and a wire brush group arranged between the front and rear protective plates, a fixing strip is fixed at the tail end of the wire brush group, and an n-type card is fixed on the outer periphery of the corresponding position of the wire brush group and the fixed base plate, and the brush body is fixed by a number of hollow rivets arranged at the corresponding positions of the fixed base plate; a number of nail holes are arranged on the fixed base plate corresponding to each hollow rivet, and the solid rivets matched with the nail holes pass through the lower plate of the fixed base plate and the hollow rivets from bottom to top and are welded and fixed to the upper plate of the fixed base plate. The shield tail sealing brush is quick to prepare and process, simple to assemble, and has excellent sealing effect.

[0004] Due to the high external pressure at the tail of the shield, some slurry or mud will invade the last grease cavity, thereby aggravating the wear of the tail brush of the tail shield; therefore, the market urgently needs to develop a steel plate brush with good wear resistance to help people solve the existing problems. Utility Model Content

[0005] The utility model aims to provide a steel plate brush with good wear resistance to solve the problem in the background technology that due to the large external pressure at the tail shield, part of the slurry or mud will invade the last grease cavity, thereby aggravating the wear of the tail shield brush.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel plate brush with good wear resistance, comprising a spring steel plate group, the spring steel plate group comprising overlapping twenty-six layers of first spring steel plates and one layer of second spring steel plate, the first spring steel plate and the second spring steel plate are both provided with angled portions, the angled portions of the first spring steel plate and the second spring steel plate are connected to a base assembly, the base assembly comprising an L-shaped lower cover plate and an upper cover plate.

[0007] Preferably, the first spring steel plate is a 0.5 mm thick spring steel plate, and the second spring steel plate is a 1.0 mm thick spring steel plate.

[0008] Preferably, the L-shaped lower cover plate is arranged at the middle part of the upper end of the corner portion, and the upper cover plate is arranged at the middle part of the lower end of the corner portion.

[0009] Preferably, a connecting portion is provided between the upper cover plate and the L-shaped lower cover plate, and the connecting portion is fixed by welding.

[0010] Preferably, four first openings are arranged at equal intervals in the middle of the corner portions of the first spring steel plate and the second spring steel plate.

[0011] Preferably, a threaded column is provided in the first opening, and the upper end of the threaded column passes through the upper cover plate and is threadedly connected to a second fixing bolt.

[0012] Preferably, the front and rear sections of the corner portions of the first spring steel plates and the second spring steel plates are both provided with second openings, and the twenty-six first spring steel plates and one second spring steel plate are fixed by first fixing bolts passing through the second openings.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, through the arrangement of the first spring steel plate and the second spring steel plate, the spring steel plate group includes twenty-six overlapping layers of the first spring steel plate and one layer of the second spring steel plate, the first spring steel plate is a 0.5 mm thick spring steel plate, and the second spring steel plate is a 1.0 mm thick spring steel plate. By overlapping and installing the twenty-six layers of the first spring steel plates and the one layer of the second spring steel plate, the entire steel plate brush has strong wear resistance, and the wear effect of part of the slurry or mud entering the last grease cavity on the entire steel plate brush is weakened, so that the performance of the steel plate brush is not affected during long-term use.

[0015] 2. In the utility model, through the setting of the second opening, the front and rear sections of the corner parts of the first spring steel plate and the second spring steel plate are both provided with second openings, and the twenty-six first spring steel plates and one second spring steel plate are fixed by passing the first fixing bolts through the second openings. Before installation, the twenty-six layers of first spring steel plates and one layer of second spring steel plate are overlapped and installed, and fixed by two first fixing bolts passing through the two second openings on the corner parts respectively, so as to facilitate the subsequent fixation of the entire steel plate brush.

[0016] 3. In the utility model, through the setting of the first opening, four first openings are evenly spaced in the middle of the corner parts of the first spring steel plate and the second spring steel plate, and a threaded column is arranged in the first opening. The upper end of the threaded column passes through the upper cover plate and is threadedly connected with the second fixing bolt. When the steel plate brush is installed, the four threaded columns are first welded and fixed to the shield tail, and the four threaded columns pass through the first openings and are fixed to the base assembly and the first spring steel plate and the second spring steel plate through the second fixing bolts. After the use time of the entire steel plate brush expires, the entire steel plate brush can be replaced by separating the second fixing bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a steel plate brush with good wear resistance according to the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is the main sectional view of the utility model;

[0020] Figure 4 It is a side sectional view of the corner portion of the utility model.

[0021] In the figure: 1. spring steel plate group; 101. first spring steel plate; 102. second spring steel plate; 103. corner portion; 104. first opening; 105. second opening; 2. base assembly; 201. L-shaped lower cover plate; 202. upper cover plate; 203. connecting portion; 3. first fixing bolt; 4. threaded column; 401. second fixing bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4The utility model provides an embodiment: a steel plate brush with good wear resistance, including a spring steel plate group 1, the spring steel plate group 1 includes twenty-six overlapping layers of first spring steel plates 101 and one layer of second spring steel plate 102, the first spring steel plate 101 and the second spring steel plate 102 are both provided with a corner portion 103, the corner portions 103 of the first spring steel plate 101 and the second spring steel plate 102 are connected with a base assembly 2, the base assembly 2 includes an L-shaped lower cover plate 201 and an upper cover plate 202.

[0024] Furthermore, the first spring steel plate 101 is a 0.5 mm thick spring steel plate, and the second spring steel plate 102 is a 1.0 mm thick spring steel plate. By overlapping and installing twenty-six layers of the first spring steel plates 101 and one layer of the second spring steel plate 102, the entire steel plate brush has strong wear resistance, and the wear effect of some slurry or mud entering the last grease cavity on the entire steel plate brush is weakened, so that the performance of the steel plate brush is not affected during long-term use.

[0025] Furthermore, the L-shaped lower cover plate 201 is arranged at the middle of the upper end of the corner portion 103 , and the upper cover plate 202 is arranged at the middle of the lower end of the corner portion 103 .

[0026] Furthermore, a connection portion 203 is provided between the upper cover plate 202 and the L-shaped lower cover plate 201 . The connection portion 203 is fixed by welding, and the upper and lower ends of the corner portion 103 are clamped by the upper cover plate 202 and the L-shaped lower cover plate 201 .

[0027] Furthermore, four first openings 104 are arranged at equal intervals in the middle of the corner portions 103 of the first spring steel plate 101 and the second spring steel plate 102 .

[0028] Furthermore, a threaded column 4 is provided in the first opening 104, and the upper end of the threaded column 4 passes through the upper cover plate 202 and is threadedly connected to the second fixing bolt 401. When the steel plate brush is installed, the four threaded columns 4 are first welded and fixed to the shield tail, and the four threaded columns 4 pass through the first opening 104 and are fixed to the base assembly 2 and the first spring steel plate 101 and the second spring steel plate 102 through the second fixing bolt 401 respectively. After the use time of the entire steel plate brush expires, the entire steel plate brush can be replaced by separating the second fixing bolt 401.

[0029] Furthermore, the front and rear sections of the corner portions 103 of the first spring steel plates 101 and the second spring steel plates 102 are both provided with second openings 105, and the twenty-six first spring steel plates 101 and one second spring steel plate 102 are fixed by first fixing bolts 3 passing through the second openings 105. Before installation, the twenty-six layers of first spring steel plates 101 and one layer of second spring steel plates 102 are overlapped and installed, and fixed by two first fixing bolts 3 passing through the two second openings 105 on the corner portions 103 respectively, to facilitate the subsequent fixation of the entire steel plate brush.

[0030] Working principle: When in use, the spring steel plate group 1 includes twenty-six overlapping layers of first spring steel plates 101 and one layer of second spring steel plates 102. The first spring steel plates 101 and the second spring steel plates 102 are both provided with angled portions 103. The angled portions 103 of the first spring steel plates 101 and the second spring steel plates 102 are connected with a base assembly 2. The base assembly 2 includes an L-shaped lower cover plate 201 and an upper cover plate 202. Before installation, the twenty-six layers of first spring steel plates 101 and one layer of second spring steel plates 102 are overlapped and installed. The first spring steel plate 101 is a 0.5 mm thick spring steel plate, and the second spring steel plate 102 is a 1.0 mm thick spring steel plate. By overlapping and installing twenty-six layers of the first spring steel plate 101 and one layer of the second spring steel plate 102, the entire steel plate brush has strong wear resistance, so that the wear effect of part of the slurry or mud entering the last grease cavity on the entire steel plate brush is weakened, so that the performance of the steel plate brush is not affected during long-term use. The first spring steel plate 101 and the second spring steel plate 102 have two front and rear corners 103. The second opening 105 is provided in each section, and the twenty-six first spring steel plates 101 and one second spring steel plate 102 are fixed by passing the first fixing bolt 3 through the second opening 105, and the two first fixing bolts 3 are respectively passed through the two second openings 105 on the angled portion 103 for fixing, so as to facilitate the subsequent fixing of the entire steel plate brush, and the L-shaped lower cover plate 201 is arranged at the middle of the upper end of the angled portion 103, the upper cover plate 202 is arranged at the middle of the lower end of the angled portion 103, and a spacer is provided between the upper cover plate 202 and the L-shaped lower cover plate 201 There is a connecting part 203, which is fixed by welding. The upper and lower ends of the angle part 103 are clamped by the upper cover plate 202 and the L-shaped lower cover plate 201 respectively, and the four threaded columns 4 are welded and fixed to the shield tail. The four threaded columns 4 pass through the first opening 104 and are fixed to the base assembly 2 and the first spring steel plate 101 and the second spring steel plate 102 by the second fixing bolts 401. After the use time of the entire steel plate brush expires, the entire steel plate brush can be replaced by separating the second fixing bolts 401.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A steel plate brush with good wear resistance, comprising a spring steel plate group (1), characterized in that: The spring steel plate group (1) comprises twenty-six overlapping layers of first spring steel plates (101) and one layer of second spring steel plate (102); the first spring steel plates (101) and the second spring steel plates (102) are both provided with angled portions (103); the angled portions (103) of the first spring steel plates (101) and the second spring steel plates (102) are connected to a base assembly (2); the base assembly (2) comprises an L-shaped lower cover plate (201) and an upper cover plate (202).

2. A steel plate brush with good wear resistance according to claim 1, characterized in that: The first spring steel plate (101) is a 0.5 mm thick spring steel plate, and the second spring steel plate (102) is a 1.0 mm thick spring steel plate.

3. A steel plate brush with good wear resistance according to claim 1, characterized in that: The L-shaped lower cover plate (201) is arranged at the middle of the upper end of the angled portion (103), and the upper cover plate (202) is arranged at the middle of the lower end of the angled portion (103).

4. A steel plate brush with good wear resistance according to claim 1, characterized in that: A connecting portion (203) is provided between the upper cover plate (202) and the L-shaped lower cover plate (201), and the connecting portion (203) is fixed by welding.

5. A steel plate brush with good wear resistance according to claim 1, characterized in that: Four first openings (104) are arranged at equal intervals in the middle of the corner portions (103) of the first spring steel plate (101) and the second spring steel plate (102).

6. A steel plate brush with good wear resistance according to claim 5, characterized in that: A threaded column (4) is disposed in the first opening (104), and the upper end of the threaded column (4) passes through the upper cover plate (202) and is threadedly connected to a second fixing bolt (401).

7. A steel plate brush with good wear resistance according to claim 1, characterized in that: Second openings (105) are provided at both the front and rear sections of the corner portions (103) of the first spring steel plates (101) and the second spring steel plates (102), and the twenty-six first spring steel plates (101) and one second spring steel plate (102) are fixed by first fixing bolts (3) passing through the second openings (105).

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