Single-blade hob with stable structure

Abstract

The utility model relates to the technical field of single-blade hobbing cutters, in particular to a single-blade hobbing cutter with a stable structure, which comprises a cutter shaft, a cutter hub, a cutter ring and shielding components, the cutter hub is arranged on the periphery of the cutter shaft, the cutter ring is arranged on the periphery of the cutter hub, the shielding components are arranged at two ends of the cutter hub, reinforcing ribs are arranged on the periphery of the cutter hub, and the reinforcing ribs are positioned on two sides of the cutter ring. A plurality of groups of cutting openings are formed in the surface of the cutter ring, and the cutting openings are tiny fillets; due to the fact that the multiple sets of cutting openings are formed in the periphery of the cutter ring, distribution of cutting force can be optimized, vibration and impact can be reduced, influences on the cutter hub during operation of the cutter ring are reduced, stress concentration can be reduced due to the small round corners of the cutting openings, and the abrasion resistance of the cutter hub can be improved due to the fact that the multiple sets of reinforcing ribs are arranged on the periphery of the cutter hub. Meanwhile, the reinforcing ribs can improve the overall rigidity and strength of the cutter hub, the cutter hub is prevented from being deformed due to overlarge stress, and the service life of the cutter 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 stable structure. Background Art

[0002] Single-edge roller cutters are the most frequently used cutters in mixed geology and hard rock geology. They use the rolling of the cutter ring to trench and crush the rock to achieve the effect of rock crushing. Especially in tunnel excavation and underground engineering operations, single-edge roller cutters are widely used in shield machines and are an important component of shield machine tools.

[0003] During use, traditional single-edged hobs often suffer from uneven force, excessive vibration and other problems, which lead to accelerated wear of the cutter ring and even deformation of the cutter hub, affecting processing accuracy and efficiency.

[0004] Therefore, in view of the fact that the above-mentioned traditional single-edged hob often wears out the cutter ring faster and even deforms the cutter hub due to problems such as uneven force and excessive vibration during use, thus affecting the processing accuracy and efficiency, a single-edged hob with a stable structure can be designed. By adding reinforcing ribs to the outer diameter surface of the cutter hub, the wear resistance of the cutter hub can be increased, and the overall strength of the cutter hub can also be improved. By adding micro-radiuses to the cutting edge of the cutter ring, stress concentration can be reduced and the life of the cutter ring can be extended. Utility Model Content

[0005] In order to overcome the problem that traditional single-edged hobs often wear out the cutter ring faster and even deform the cutter hub during use due to uneven force and excessive vibration, which affects the processing accuracy and efficiency.

[0006] The technical solution of the utility model is: a single-edged hob with a stable structure, including a cutter shaft, a cutter hub, a cutter ring and a shielding component, the cutter hub is arranged on the periphery of the cutter shaft, the cutter ring is arranged on the periphery of the cutter hub, the shielding component is arranged at both ends of the cutter hub, the periphery of the cutter hub is provided with reinforcing ribs, the reinforcing ribs are located on both sides of the cutter ring, and the surface of the cutter ring is provided with multiple groups of cutting edges, and the cutting edges are arranged with small rounded corners.

[0007] Preferably, the cutter hub is installed by setting a cutter shaft, the cutter ring is installed by setting a cutter hub, and rock operations are performed by setting a cutter ring. The interior of the cutter hub can be shielded and protected by setting a shielding component. The wear resistance of the cutter hub can be increased by setting reinforcing ribs. At the same time, the overall rigidity and strength of the cutter hub can also be improved to prevent the cutter hub from being deformed due to excessive force. By setting multiple groups of cutting edges on the periphery of the cutter ring, the distribution of cutting force can be optimized, vibration and impact can be reduced, and the small radius of the cutting edge can reduce stress concentration, thereby extending the service life of the tool.

[0008] Preferably, multiple groups of reinforcing ribs are provided, and the reinforcing ribs are arranged in a circle on the outer surface of the cutter hub with the cutter shaft as the axis.

[0009] Preferably, two sets of bearings are provided on the periphery of the cutter shaft, the bearings are located between the cutter shaft and the cutter hub, the cutter shaft and the cutter hub are rotatably connected through the bearings, and a spacer ring is provided on the periphery of the cutter shaft, the spacer ring is located between the two sets of bearings.

[0010] Preferably, the shielding assembly includes an upper end cover, a lower end cover and a sealing ring. The upper end cover is arranged at one end of the blade hub, the upper end cover is arranged at the periphery of the blade shaft, and a sealing ring is arranged on one side of the upper end cover. The lower end cover is arranged at the other end of the blade hub, the lower end cover is arranged at the periphery of the blade shaft, and a sealing ring is arranged on one side of the lower end cover.

[0011] Preferably, a set of locking rings is provided on one side of the upper end cover and the lower end cover, and the locking rings are located on the periphery of the cutter shaft.

[0012] Preferably, two groups of oil holes are opened on the surface of the upper end cover, and oil plugs are provided inside the oil holes.

[0013] Preferably, a slot is provided on the periphery of the cutter hub, the slot is located on one side of the cutter ring, a retaining ring is provided inside the slot, and the retaining ring is engaged and connected with the cutter hub through the slot.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can optimize the distribution of cutting force, reduce vibration and impact, and reduce the impact of the cutter ring on the cutter hub during operation by arranging multiple groups of cutting edges on the periphery of the cutter ring. The small rounded corners of the cutting edges can reduce stress concentration. By arranging multiple groups of reinforcing ribs on the periphery of the cutter hub, the wear resistance of the cutter hub can be increased. At the same time, the reinforcing ribs can also improve the overall rigidity and strength of the cutter hub, prevent the cutter hub from being deformed due to excessive force, and extend the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the single-edged hob with a stable structure of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the explosion three-dimensional structure of a single-edged hob with a stable structure of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the exploded three-dimensional structure of the upper end cover of the single-edged hob with stable structure of the present invention;

[0019] Figure 4 Shown is a schematic diagram of a cross-sectional three-dimensional structure of a single-edged hob hub with a stable structure of the present invention;

[0020] Figure 5 Shown is a schematic diagram of the exploded three-dimensional structure of the single-edged hob hub with stable structure of the present invention;

[0021] Explanation of the accompanying reference numerals: 1. Cutter shaft; 101. Bearing; 102. Spacer ring; 2. Cutter hub; 201. Reinforcement rib; 3. Cutter ring; 301. Slot; 302. Snap ring; 303. Cutting edge; 401. Upper end cover; 402. Lower end cover; 403. Sealing ring; 404. Locking ring; 405. Oil hole; 406. Oil plug. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 5 The utility model provides an embodiment: a single-edged hob with a stable structure, comprising a cutter shaft 1, a cutter hub 2, a cutter ring 3 and a shielding component, the cutter hub 2 is arranged on the periphery of the cutter shaft 1, the cutter ring 3 is arranged on the periphery of the cutter hub 2, the shielding components are arranged at both ends of the cutter hub 2, the cutter hub 2 is provided with a reinforcing rib 201 on the periphery, the reinforcing rib 201 is located on both sides of the cutter ring 3, the surface of the cutter ring 3 is provided with multiple groups of cutting openings 303, and the cutting openings 303 are set with small rounded corners; the cutter hub 2 is installed by setting the cutter shaft 1, and the cutter hub 2 is set to the cutter The cutter ring 3 is installed, and rock operations are performed by setting the cutter ring 3. The interior of the cutter hub 2 can be shielded and protected by setting a shielding component. The wear resistance of the cutter hub 2 can be increased by setting the reinforcing ribs 201. At the same time, the overall rigidity and strength of the cutter hub 2 can also be improved to prevent the cutter hub 2 from being deformed due to excessive force. By arranging multiple groups of cutting ports 303 on the periphery of the cutter ring 3, the distribution of cutting force can be optimized, and vibration and impact can be reduced. The small radius of the cutting port 303 can reduce stress concentration, thereby extending the service life of the tool.

[0024] See also Figure 1-Figure 3, in this embodiment, there are multiple groups of reinforcing ribs 201, and the reinforcing ribs 201 are arranged in a circle on the outer surface of the blade hub 2 with the blade shaft 1 as the axis; two groups of bearings 101 are provided on the periphery of the blade shaft 1, and the bearings 101 are located between the blade shaft 1 and the blade hub 2, and the blade shaft 1 and the blade hub 2 are rotatably connected through the bearings 101, and the spacer ring 102 is provided on the periphery of the blade shaft 1, and the spacer ring 102 is located between the two groups of bearings 101; the blade hub 2 is rotatably connected to the blade shaft 1 by providing the bearings 101, and the two groups of bearings 101 are separated by providing the spacer ring 102; the shielding component includes an upper end cover 401, a lower end cover 402 and a sealing ring 403, the upper end cover 401 is provided at one end of the blade hub 2, the upper end cover 401 is provided at the periphery of the blade shaft 1, a sealing ring 403 is provided on one side of the upper end cover 401, the lower end cover 402 is provided at the other end of the blade hub 2, and the lower end cover 402 is provided at the periphery of the blade shaft 1, A sealing ring 403 is provided on one side of the lower end cover 402; by providing the upper end cover 401 and the lower end cover 402, the two ends of the cutter hub 2 are respectively covered, and the bearing 101 inside the cutter hub 2 is protected. By providing the sealing ring 403, the connection between the upper end cover 401 and the lower end cover 402 and the cutter hub 2 can be sealed; a group of locking rings 404 are provided on one side of the upper end cover 401 and the lower end cover 402, and the locking rings 404 are located on the periphery of the cutter shaft 1; by providing the locking rings 404, the upper end cover 401 and the lower end cover 402 can be locked and fixed; two groups of oil holes 405 are opened on the surface of the upper end cover 401, and the inside of the oil holes 405 is provided with oil plugs 406; by providing the oil holes 405, grease can be added to the inside of the cutter hub 2 to enhance the sealing, lubricate the bearing 101, and extend the service life. By providing the oil plugs 406, the oil holes 405 are covered when no oil is added.

[0025] See also Figure 4-Figure 5 In this embodiment, a slot 301 is provided on the periphery of the cutter hub 2, the slot 301 is located on one side of the cutter ring 3, and a snap ring 302 is provided inside the slot 301. The snap ring 302 is engaged and connected with the cutter hub 2 through the slot 301. The snap ring 302 is installed by providing the slot 301, and the snap ring 302 can maintain the axial position of the cutter ring 3 to prevent it from moving, thereby ensuring the stability and accuracy of the cutting process.

[0026] During operation, the blade hub 2 is mounted on the periphery of the blade shaft 1 using the bearing 101, and the upper end cover 401 and the lower end cover 402 are used to shield and protect both ends of the blade hub 2. The oil hole 405 can be used to add grease to the inside of the blade hub 2 to enhance sealing, lubricate the bearing 101, and extend its service life.

[0027] The cutter ring 3 is installed using the cutter hub 2, and the cutter ring 3 is used to work on the rock. The plurality of cutting openings 303 are provided on the periphery of the cutter ring 3 to optimize the distribution of cutting force, reduce vibration and impact, and the slight rounded corners of the cutting openings 303 can reduce stress concentration, thereby extending the service life of the cutter.

[0028] By adding multiple groups of reinforcing ribs 201 to the periphery of the cutter hub 2, the wear resistance of the cutter hub 2 can be increased, and the overall rigidity and strength of the cutter hub 2 can also be improved to prevent the cutter hub 2 from being deformed due to excessive force.

[0029] Through the above steps, by arranging multiple groups of cutting edges 303 on the periphery of the cutter ring 3, the distribution of cutting force can be optimized, vibration and impact can be reduced, and the impact of the cutter ring 3 on the cutter hub 2 during operation can be reduced. The small rounded corners of the cutting edges 303 can reduce stress concentration. By arranging multiple groups of reinforcing ribs 201 on the periphery of the cutter hub 2, the wear resistance of the cutter hub 2 can be increased. At the same time, the reinforcing ribs 201 can also improve the overall rigidity and strength of the cutter hub 2, prevent the cutter hub 2 from being deformed due to excessive force, and extend the service life of the tool; so as to solve the problem that traditional single-edged hobs often wear out the cutter ring 3 faster due to uneven force, excessive vibration, and other problems during use, and even cause the cutter hub 2 to deform, affecting processing accuracy and efficiency.

[0030] 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 stable structure, comprising a cutter shaft (1); characterized in that: The utility model further comprises a blade hub (2), a blade ring (3) and a shielding component, wherein the blade hub (2) is arranged on the periphery of the blade shaft (1), the blade ring (3) is arranged on the periphery of the blade hub (2), the shielding component is arranged at both ends of the blade hub (2), the periphery of the blade hub (2) is provided with reinforcing ribs (201), the reinforcing ribs (201) are located on both sides of the blade ring (3), and the surface of the blade ring (3) is provided with multiple groups of cutting openings (303), and the cutting openings (303) are arranged with slightly rounded corners.

2. A structurally stable single-edged hob according to claim 1, characterized in that: A plurality of reinforcing ribs (201) are provided, and the reinforcing ribs (201) are arranged in a circular pattern on the outer surface of the cutter hub (2) with the cutter shaft (1) as the axis.

3. The structurally stable single-edged hob according to claim 1, characterized in that: Two groups of bearings (101) are arranged on the periphery of the cutter shaft (1), the bearings (101) are located between the cutter shaft (1) and the cutter hub (2), the cutter shaft (1) and the cutter hub (2) are rotatably connected via the bearings (101), and a spacer ring (102) is arranged on the periphery of the cutter shaft (1), and the spacer ring (102) is located between the two groups of bearings (101).

4. The structurally stable single-edged hob according to claim 1, characterized in that: The shielding assembly comprises an upper end cover (401), a lower end cover (402) and a sealing ring (403), wherein the upper end cover (401) is arranged at one end of the blade hub (2), the upper end cover (401) is arranged at the periphery of the blade shaft (1), and a sealing ring (403) is arranged on one side of the upper end cover (401), and the lower end cover (402) is arranged at the other end of the blade hub (2), the lower end cover (402) is arranged at the periphery of the blade shaft (1), and a sealing ring (403) is arranged on one side of the lower end cover (402).

5. The structurally stable single-edged hob according to claim 4, characterized in that: A set of locking rings (404) are provided on one side of the upper end cover (401) and the lower end cover (402), and the locking rings (404) are located on the periphery of the knife shaft (1).

6. The structurally stable single-edged hob according to claim 4, characterized in that: Two groups of oil holes (405) are provided on the surface of the upper end cover (401), and oil plugs (406) are provided inside the oil holes (405).

7. The structurally stable single-edge hob according to claim 1, characterized in that: A clamping groove (301) is provided on the periphery of the cutter hub (2), the clamping groove (301) is located on one side of the cutter ring (3), and a clamping ring (302) is arranged inside the clamping groove (301). The clamping ring (302) is clamped and connected to the cutter hub (2) through the clamping groove (301).

Images