Single-blade hobbing cutter with wear-resistant cutter ring

Abstract

The utility model relates to the technical field of single-blade hobbing cutters, in particular to a single-blade hobbing cutter with a wear-resistant cutter ring, which comprises a cutter shaft, a cutter hub, the cutter ring, a bearing, a shielding component and a sealing component, the bearing is arranged on the periphery of the cutter shaft, the cutter hub is arranged on the periphery of the cutter shaft, the cutter hub is rotatably connected with the cutter shaft through the bearing, and the cutter ring is arranged on the periphery of the cutter hub. Wear-resistant welding is arranged on the end face of the cutter ring, reinforcing welding is arranged on the side walls of the two sides of the cutter ring, two sets of positioning grooves are formed in the periphery of the cutter hub and located in the two sides of the cutter ring respectively, and a clamping ring is arranged on the periphery of the cutter hub and connected with the cutter hub in a clamped mode through the positioning grooves; the two groups of clamping rings are respectively positioned and mounted through the two groups of positioning grooves, so that the cutter ring is positioned and fixed through the two groups of clamping rings, the cutter ring is prevented from deviating in the working process, the strength of the cutter ring can be improved through reinforced welding, the cutter ring is prevented from deforming in the long-term working process, the abrasion resistance of the cutter ring can be improved through abrasion-resistant welding, and the service life of the cutter ring is prolonged. The service life of the cutter ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of single-edge hobs, in particular to a single-edge hob with a wear-resistant cutter ring. Background Art

[0002] Carbide cutter ring hobs are the most frequently used tools in shield machines in mixed geology and hard rock geology. The cutter ring is used to trench and crush the rock, thereby achieving the effect of crushing the rock.

[0003] Since the cutter ring needs to be in constant contact and friction with the rock during operation, it is easy to cause the cutter ring to wear and even deform, causing the edge alloy to fall off. Damage to the cutter ring will cause the reel to be scrapped, affecting the service life of the reel and increasing the cost of use.

[0004] Therefore, in view of the fact that the above-mentioned cutter ring needs to be in constant contact and friction with the rock during operation, which may easily cause the cutter ring to wear and deform, damage to the cutter ring may cause the cutter to be scrapped, thus affecting the service life of the cutter, a single-edged cutter with a wear-resistant cutter ring can be designed. By adding a wear-resistant structure to the cutter ring, the wear resistance and structural strength of the cutter ring can be effectively improved, making it less prone to deformation. At the same time, the frequency of cutter replacement can be reduced, saving usage costs. Utility Model Content

[0005] In order to overcome the problem that the cutter ring needs to be in constant contact and friction with the rock during operation, which can easily cause the cutter ring to wear or even deform, damage to the cutter ring will cause the reel to be scrapped, affecting the service life of the reel and increasing the cost of use.

[0006] The technical solution of the utility model is: a single-edged hob with a wear-resistant cutter ring, comprising a cutter shaft, a cutter hub, a cutter ring, a bearing, a shielding assembly and a sealing assembly, the bearing being arranged on the periphery of the cutter shaft, the cutter hub being arranged on the periphery of the cutter shaft, the cutter hub and the cutter shaft being rotatably connected through the bearing, the cutter ring being arranged on the periphery of the cutter hub, the end face of the cutter ring being provided with a wear-resistant weld, the side walls on both sides of the cutter ring being provided with a reinforcement weld, two groups of positioning grooves being provided on the periphery of the cutter hub, the two groups of positioning grooves being respectively located on both sides of the cutter ring, a retaining ring being provided on the periphery of the cutter hub, the retaining ring being engaged with the cutter hub through the positioning groove, the shielding assembly being arranged between the cutter ring and the cutter hub, and the sealing assembly being arranged on one side of the shielding assembly.

[0007] Preferably, the cutter shaft is connected and installed with the cutter ring by setting the bearing, the rock is broken by setting the cutter ring, the clamping ring is installed by setting the clamping groove, the cutter ring is positioned and fixed by the clamping ring, the cutter ring is more wear-resistant by setting the wear-resistant welding, the service life of the cutter ring is prolonged, the structural strength of the cutter ring is enhanced by setting the reinforcing welding, thereby preventing the cutter ring from deforming during work, the inside of the cutter hub is shielded by setting the shielding assembly, thereby protecting the bearing inside, the shielding assembly is sealed by setting the sealing assembly, preventing external impurities from entering the inside of the cutter hub and affecting the work of the bearing.

[0008] Preferably, the wear-resistant welding and the reinforcing welding are both provided with multiple groups, the multiple groups of wear-resistant welding are arranged around the axis of the cutter ring on the end face of the cutter ring, and the multiple groups of reinforcing welding are arranged around the axis of the cutter ring on the side face of the cutter ring.

[0009] Preferably, the two ends of the cutter shaft are both fixedly installed with the connecting blocks, and the cutter shaft is peripherally fixedly installed with the blocking ring.

[0010] Preferably, the bearing is provided with two groups, one group of bearings is located on one side of the blocking ring, and a partition ring is arranged between the two groups of bearings.

[0011] Preferably, the shielding assembly comprises an upper end cover and a lower end cover, and the upper end cover and the lower end cover are both arranged between the cutter hub and the cutter shaft, the upper end cover is located at one end of the cutter hub, and the lower end cover is located at the other end of the cutter hub.

[0012] Preferably, the sealing assembly comprises a sealing ring and a locking ring, and the sealing ring is arranged on one side of the upper end cover and the lower end cover, and the locking ring is arranged on the other side of the upper end cover and the lower end cover.

[0013] Preferably, the upper end cover is provided with two groups of filling holes, and the filling holes are provided with two groups of plugs.

[0014] The utility model discloses the beneficial effect:

[0015] 1, the utility model discloses two groups of positioning slots are positioned and installed to two groups of clamping rings respectively, thereby the two sides of the cutter ring are positioned and fixed through two groups of clamping rings, can effectively prevent the cutter ring from deviating in work, cause the cutter ring to be damaged, the overall strength of the cutter ring can be increased through the reinforcing welding, prevent the cutter ring from deforming in long -term work, thereby causing the hob to be scrapped, the wear resistance of the cutter ring can be improved through the wear -resistant welding, improve the service life of the cutter ring, thereby improve the use time of single hob, thereby reduce the frequency of changing the tool, save the use cost. DRAWINGS

[0016] Figure 1 The single-edge hob with the wear-resistant cutter ring is shown in the three-dimensional structure schematic view.

[0017] Figure 2Shown is a schematic diagram of the exploded three-dimensional structure of a single-edged hob with a wear-resistant cutter ring of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the cross-sectional three-dimensional structure of a single-edged hob with a wear-resistant cutter ring of the present invention;

[0019] Figure 4 Shown is a schematic diagram of the exploded three-dimensional structure of the upper end cover of the single-edged hob with a wear-resistant cutter ring of the present invention;

[0020] Explanation of the accompanying reference numerals: 1. Cutter shaft; 101. Connecting block; 102. Retaining ring; 2. Cutter hub; 3. Cutter ring; 4. Bearing; 401. Spacer ring; 301. Wear-resistant weld; 302. Reinforcement weld; 303. Positioning groove; 304. Snap ring; 501. Upper end cover; 502. Lower end cover; 601. Sealing ring; 602. Locking ring; 701. Filling hole; 702. Plug. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figures 1-4 The utility model provides an embodiment: a single-edged hob with a wear-resistant cutter ring, comprising a cutter shaft 1, a cutter hub 2, a cutter ring 3, a bearing 4, a shielding assembly and a sealing assembly. The bearing 4 is arranged on the periphery of the cutter shaft 1, the cutter hub 2 is arranged on the periphery of the cutter shaft 1, the cutter hub 2 is rotatably connected to the cutter shaft 1 through the bearing 4, the cutter ring 3 is arranged on the periphery of the cutter hub 2, the end face of the cutter ring 3 is provided with a wear-resistant weld 301, and the side walls on both sides of the cutter ring 3 are provided with a strengthening weld 302. Two groups of positioning grooves 303 are opened on the periphery of the cutter hub 2, and the two groups of positioning grooves 303 are respectively located on both sides of the cutter ring 3. A snap ring 304 is provided on the periphery of the cutter hub 2, and the snap ring 304 is engaged with the cutter hub 2 through the positioning groove 303. The shielding assembly is arranged between the cutter ring 3 and the cutter hub 2. The sealing component is arranged on one side of the shielding component; the cutter shaft 1 and the cutter ring 3 are connected and installed by arranging the bearing 4, the rock is crushed by arranging the cutter ring 304, and the cutter ring 3 is positioned and fixed by the snap ring 304. The wear-resistant welding 301 can make the cutter ring 3 more wear-resistant and extend the service life of the cutter ring 3. The reinforcing welding 302 can enhance the structural strength of the cutter ring 3, thereby preventing the cutter ring 3 from deforming during work. The shielding component is provided to shield the inside of the cutter hub 2, thereby protecting the internal bearing 4. The shielding component is sealed by providing the sealing component to prevent external impurities from entering the inside of the cutter hub 2 and affecting the operation of the bearing 4.

[0023] See also Figure 1-Figure 2In the embodiment, the wear-resistant welds 301 and the reinforcing welds 302 are arranged in multiple groups, the multiple groups of wear-resistant welds 301 are arranged around the axis of the cutter ring 3 on the end face of the cutter ring 3, and the multiple groups of reinforcing welds 302 are arranged around the axis of the cutter ring 3 on the side face of the cutter ring 3; the connecting blocks 101 are fixedly installed at both ends of the cutter shaft 1, and the retaining rings 102 are fixedly installed on the periphery of the cutter shaft 1; the bearings 4 are arranged in two groups, one group of bearings 4 is located on one side of the retaining ring 102, and the two groups of bearings 4 are separated by the spacer rings 401; the cutter shaft 1 can be installed on the shield tunneling machine by arranging the connecting blocks 101, the installation of the bearings 4 is positioned by arranging the retaining rings 102, and the two groups of bearings 4 are separated by arranging the spacer rings 401 to prevent mutual influence.

[0024] Please refer to Figure 3-Figure 4 In the embodiment, the shielding assembly includes the upper end cover 501 and the lower end cover 502, the upper end cover 501 and the lower end cover 502 are arranged between the cutter hub 2 and the cutter shaft 1, the upper end cover 501 is located at one end of the cutter hub 2, and the lower end cover 502 is located at the other end of the cutter hub 2; the two ends of the cutter hub 2 are shielded by arranging the upper end cover 501 and the lower end cover 502, so as to protect the bearings 4 inside; the sealing assembly includes the sealing rings 601 and the locking rings 602, one side of the upper end cover 501 and the lower end cover 502 is provided with the sealing ring 601, and the other side of the upper end cover 501 and the lower end cover 502 is provided with the locking ring 602; the upper end cover 501 and the cutter hub 2 and the lower end cover 502 and the cutter hub 2 are sealed by arranging the two groups of sealing rings 601, and the upper end cover 501 and the cutter shaft 1 and the lower end cover 502 and the cutter shaft 1 are sealed by arranging the two groups of locking rings 602; two groups of filling holes 701 are formed on one side of the upper end cover 501, and the filling holes 701 are provided with two groups of plugs 702; the filling holes 701 are arranged to facilitate the addition of lubricating oil inside the cutter hub 2, so as to protect the bearings 4, and the plugs 702 are arranged to shield and protect the filling holes 701.

[0025] In the working process, the cutter shaft 1 is connected with the shield tunneling machine by the connecting blocks 101, so that the whole hob is installed on the shield tunneling machine.

[0026] The bearings 4 inside the cutter hub 2 are shielded and protected by the upper end cover 501 and the lower end cover 502, the upper end cover 501 and the lower end cover 502 are sealed by arranging the locking rings 602 and the sealing rings, dust and impurities are prevented from penetrating into the cutter hub 2, the bearings 4 are prevented from being affected, the inside of the cutter hub 2 is filled with grease by arranging the filling holes 701, and the bearings 4 are protected.

[0027] By setting two sets of retaining rings 304, the cutter ring 3 installed on the periphery of the cutter hub 2 can be positioned. By setting the reinforcing weld 302, the strength of the cutter ring 3 can be increased to prevent the cutter ring 3 from being deformed during long-term work. By setting the wear-resistant weld 301, the wear resistance of the cutter ring 3 can be improved, thereby increasing the service life of the cutter ring 3.

[0028] Through the above steps, the two groups of retaining rings 304 are positioned and installed respectively through the two groups of positioning grooves 303, so that the cutter ring 3 is positioned and fixed by the two groups of retaining rings 304 to prevent the cutter ring 3 from shifting during work. The strength of the cutter ring 3 can be increased by strengthening welding 302 to prevent the cutter ring 3 from deformation during long-term work. The wear resistance of the cutter ring 3 can be improved by wear-resistant welding 301, the wear of the cutter ring 3 can be reduced, the service life of the hob can be increased, the frequency of cutter replacement can be reduced, and the cost of use can be saved; this solves the problem that the cutter ring 3 needs to be in constant contact and friction with the rock during work, which can easily cause the cutter ring 3 to wear or even deform, and damage to the cutter ring 3 can cause the hob to be scrapped, affecting the service life of the hob and increasing the cost of use.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A single-edged hob with a wear-resistant cutter ring, comprising a cutter shaft (1); characterized in that: The utility model also includes a blade hub (2), a blade ring (3), a bearing (4), a shielding component and a sealing component, wherein the bearing (4) is arranged on the periphery of the blade shaft (1), the blade hub (2) is arranged on the periphery of the blade shaft (1), the blade hub (2) is rotatably connected to the blade shaft (1) through the bearing (4), the blade ring (3) is arranged on the periphery of the blade hub (2), the end face of the blade ring (3) is provided with a wear-resistant weld (301), and the side walls on both sides of the blade ring (3) are provided with a reinforcement weld (302), the periphery of the blade hub (2) is provided with two groups of positioning grooves (303), the two groups of positioning grooves (303) are respectively located on both sides of the blade ring (3), the periphery of the blade hub (2) is provided with a snap ring (304), the snap ring (304) is engaged with the blade hub (2) through the locating groove (303), the shielding component is arranged between the blade ring (3) and the blade hub (2), and the sealing component is arranged on one side of the shielding component.

2. The single-edge hob with a wear-resistant cutter ring according to claim 1, characterized in that: Multiple groups of wear-resistant welds (301) and reinforcement welds (302) are provided. The multiple groups of wear-resistant welds (301) are arranged around the axis of the knife ring (3) on the circumference of the end face of the knife ring (3), and the multiple groups of reinforcement welds (302) are arranged around the axis of the knife ring (3) on the circumference of the side face of the knife ring (3).

3. The single-edge hob with a wear-resistant cutter ring according to claim 1, characterized in that: Connecting blocks (101) are fixedly mounted on both ends of the knife shaft (1), and a retaining ring (102) is fixedly mounted on the periphery of the knife shaft (1).

4. The single-edged hob with a wear-resistant cutter ring according to claim 1, characterized in that: Two groups of bearings (4) are provided, one group of bearings (4) is located on one side of the retaining ring (102), and a spacer ring (401) is provided between the two groups of bearings (4).

5. The single-edge hob with a wear-resistant cutter ring according to claim 1, characterized in that: The shielding component comprises an upper end cover (501) and a lower end cover (502), both of which are arranged between the cutter hub (2) and the cutter shaft (1), the upper end cover (501) being located at one end of the cutter hub (2), and the lower end cover (502) being located at the other end of the cutter hub (2).

6. The single-edge hob with a wear-resistant cutter ring according to claim 5, characterized in that: The sealing assembly comprises a sealing ring (601) and a locking ring (602), wherein the sealing ring (601) is provided on one side of the upper end cover (501) and the lower end cover (502), and the locking ring (602) is provided on the other side of the upper end cover (501) and the lower end cover (502).

7. The single-edge hob with a wear-resistant cutter ring according to claim 5, characterized in that: Two groups of filling holes (701) are provided on one side of the upper end cover (501), and two groups of plugs (702) are provided inside the filling holes (701).

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