Locking mechanism for upper end cover of single-blade hob

Abstract

The utility model relates to the technical field of single-blade hobs, in particular to a single-blade hob upper end cover locking mechanism which comprises a hob body, a hob shaft, an upper end cover body, a sealing assembly, an oil seal assembly, a positioning groove, a locking ring, a first locking assembly, a locking block and a second locking assembly. A hob shaft is arranged on the inner side of the hob body, an upper end cover body is arranged at one end of the hob shaft, a sealing assembly is arranged on one side of the upper end cover body, an oil seal assembly is arranged on the other side of the upper end cover body, a positioning groove is formed in one side of the upper end cover body, a locking ring is arranged on the inner side of the positioning groove, and the locking ring and the positioning groove are mutually embedded. A first locking assembly is arranged on one side of the locking ring, two sets of locking blocks are symmetrically arranged on one side of the first locking assembly, and a second locking assembly is arranged on one side of each locking block; by means of a multidirectional locking mode, it is guaranteed that the upper end cover is tightly connected with the hob, the upper end cover is prevented from loosening in the operation process of the hob, and the operation stability of the single-blade hob is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of single-edge hobs, in particular to a locking mechanism for an upper end cover of a single-edge hob. Background Art

[0002] Single-edge hob is the most frequently used tool in mixed geology and hard rock geology. Single-edge hob may be exposed to various impurities in the working environment. Therefore, an end cover is needed as the upper end protective component of the hob to effectively prevent these impurities from entering the inside of the hob.

[0003] Most of the current single-edged hob upper cover connection structures are relatively simple. After long-term use, the upper cover is prone to loosening, which may cause the hob position to shift axially. When the hob is used, the tightness of the internal structure changes, the tool torque becomes smaller, and the stability of the entire tool becomes worse, affecting the actual performance of the hob.

[0004] Therefore, in view of the fact that the upper end cover of the existing single-edge hob is easy to loosen and affects the stability of the hob operation, a locking mechanism for the upper end cover of the single-edge hob can be designed. Through multi-directional locking, the upper end cover and the hob are firmly connected to avoid loosening of the upper end cover during the operation of the single-edge hob, thereby enhancing the stability of the single-edge hob operation. Utility Model Content

[0005] In order to overcome the problem that the upper end cover connection structure of most single-edge hobs is prone to loosening after long-term use, the hob position may be axially offset, the tightness of the internal structure changes when the hob is used, the tool torque becomes smaller, and the stability of the entire tool becomes worse, affecting the actual performance of the hob.

[0006] The technical solution of the utility model is: a locking mechanism for the upper end cover of a single-edged hob, comprising a hob body, a cutter shaft, an upper end cover body, a sealing assembly, an oil seal assembly, a positioning groove, a locking ring, a first locking assembly, a locking block and a second locking assembly; a cutter shaft is provided on the inner side of the hob body, an upper end cover body is provided at one end of the cutter shaft, a sealing assembly is provided on one side of the upper end cover body, an oil seal assembly is provided on the other side of the upper end cover body, a positioning groove is provided on one side of the upper end cover body, a locking ring is provided on the inner side of the positioning groove, the locking ring and the positioning groove are engaged with each other, a first locking assembly is provided on one side of the locking ring, a locking block is provided on one side of the first locking assembly, two groups of locking blocks are symmetrically provided, and a second locking assembly is provided on one side of the locking block.

[0007] Preferably, a cutter shaft is set to drive the cutter body to rotate, the upper end cover body is used to seal the upper end of the cutter body, the sealing state of the upper end cover body is ensured by the sealing component, lubricating oil is injected into the cutter body by the oil seal component, the installation position of the locking ring is clearly defined by the positioning groove, the locking ring is preliminarily locked by the first locking component, the locking ring is rotated to adjust the position of the locking block, the locking block is clamped by the second locking component, and the upper end cover body is further locked by the locking block, thereby ensuring that the upper end cover is firmly connected to the cutter, avoiding the effect of loosening of the upper end cover during the operation of the single-edged cutter, and improving the stability of the single-edged cutter operation.

[0008] Preferably, the upper end cover body is made of wear-resistant high-chromium steel, wherein the shape of the upper end cover body matches the shape of the upper end of the hob body.

[0009] Preferably, the sealing assembly includes a sealing groove and a sealing ring; a sealing groove is opened on one side of the upper end cover body, and there are two groups of sealing grooves, which are concentric annular grooves with different diameters. A sealing ring is arranged on the inner side of the sealing groove, and there are two groups of sealing rings, which are embedded in the sealing groove.

[0010] Preferably, the oil seal assembly includes an oil filling port and an oil plug; an oil filling port is opened on one side of the upper end cover body, and two groups of oil filling ports are symmetrically opened. An oil plug is provided on the inner side of the oil filling port, and two groups of oil plugs are symmetrically arranged, and the oil plugs and the oil filling port are interlocked.

[0011] Preferably, the first locking assembly includes a first card slot, a first card plate, a first arc-shaped slide groove, a second card slot, a second card plate and a second arc-shaped slide groove; a first card slot is provided on one side of the upper end cover body, a first card plate is provided on the outer side of the locking ring, a first arc-shaped slide groove is provided on one side of the upper end cover body, a second card slot is provided at one end of the knife shaft, a second card plate is provided on the inner side of the locking ring, and a second arc-shaped slide groove is provided at one end of the knife shaft.

[0012] Preferably, the first card slots are symmetrically provided with two groups, the first card plates are symmetrically provided with two groups, the first card plates and the first card slots are interlocked with each other, the first arc-shaped slide groove and the first card slot are interconnected, the second card slots are symmetrically provided with two groups, the second card plates are symmetrically provided with two groups, the second card plates and the second card slots are interlocked with each other, and the second arc-shaped slide groove and the second card slot are interconnected.

[0013] Preferably, the second locking assembly includes a spring and a third slot; a spring is provided on one side of the first clamping plate, and the locking block is provided at one end of the spring. A third slot is provided on one side of the upper end cover body, and two groups of third slots are symmetrically provided. The third slot and the first arc-shaped slide groove are interconnected, and the locking block and the third slot are engaged with each other.

[0014] Beneficial effects of the utility model:

[0015] 1. When using a single-edge hob, the cutter body is driven to rotate by setting the cutter shaft, the upper end cover body is used to close the upper end of the hob body, the positioning groove is used to clearly define the installation position of the locking ring, the upper end cover body position is preliminarily locked by the locking ring, the locking ring is rotated to adjust the position of the locking block, and the upper end cover body is further locked by the locking block to solve the problem that most of the upper end cover connection structures of single-edge hobs are relatively simple. After long-term use, the upper end cover is prone to loosening, resulting in axial displacement of the hob position, changes in the tightness of the internal structure of the hob when in use, and the tool torque becomes smaller, affecting the actual performance of the hob. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a three-dimensional structural diagram of the locking mechanism of the upper end cover of the single-edged hob of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the sealing component of the locking mechanism of the upper end cover of the single-edged hob of the present invention;

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

[0019] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the locking ring of the locking mechanism of the upper end cover of the single-edged hob of the present invention.

[0020] Explanation of the accompanying drawings: 1. Hob body; 2. Cutter shaft; 3. Upper end cover body; 301. Sealing groove; 302. Sealing ring; 303. Oil filling port; 304. Oil plug; 4. Positioning groove; 5. Locking ring; 501. First clamping groove; 502. First clamping plate; 503. First arc-shaped slide groove; 504. Second clamping groove; 505. Second clamping plate; 506. Second arc-shaped slide groove; 6. Locking block; 601. Spring; 602. Third clamping groove. DETAILED DESCRIPTION

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

[0022] See also Figures 1-4The present invention provides an embodiment of a locking mechanism for the upper end cover of a single-edged hob, comprising a hob body 1, a cutter shaft 2, an upper end cover body 3, a sealing assembly, an oil seal assembly, a positioning groove 4, a locking ring 5, a first locking assembly, a locking block 6, and a second locking assembly; a cutter shaft 2 is provided on the inner side of the hob body 1, and an upper end cover body 3 is provided at one end of the cutter shaft 2. The upper end cover body 3 is made of wear-resistant high chromium steel, wherein the shape of the upper end cover body 3 matches the shape of the upper end of the hob body 1, a sealing assembly is provided on one side of the upper end cover body 3, an oil seal assembly is provided on the other side of the upper end cover body 3, a positioning groove 4 is opened on one side of the upper end cover body 3, a locking ring 5 is provided on the inner side of the positioning groove 4, and the locking ring 5 and the positioning groove 4 are engaged with each other, a first locking assembly is provided on one side of the locking ring 5, a locking block 6 is provided on one side of the first locking assembly, two groups of locking blocks 6 are symmetrically provided, and a second locking assembly is provided on one side of the locking block 6.

[0023] See also Figure 2-Figure 4 In this embodiment, the sealing assembly includes a sealing groove 301 and a sealing ring 302; a sealing groove 301 is opened on one side of the upper end cover body 3, and the sealing groove 301 is opened in two groups. The two groups of sealing grooves 301 are concentric ring grooves with different diameters. A sealing ring 302 is set on the inner side of the sealing groove 301. There are two groups of sealing rings 302. The sealing ring 302 and the sealing groove 301 are interlocked with each other. The installation position of the sealing ring 302 is clearly defined by the sealing groove 301, and the sealing ring 302 is used to ensure the sealing between the upper end cover body 3 and the hob body 1 Effect; The oil seal assembly includes an oil filling port 303 and an oil plug 304; An oil filling port 303 is opened on one side of the upper end cover body 3, and two groups of oil filling ports 303 are symmetrically opened. An oil plug 304 is provided on the inner side of the oil filling port 303, and two groups of oil plugs 304 are symmetrically provided. The oil plug 304 and the oil filling port 303 are interlocked with each other, and lubricating oil is injected into the hob body 1 through the oil filling port 303. The oil plug 304 is used to flexibly block the oil filling port 303, thereby realizing flexible addition of lubricating oil and ensuring the normal rotation of the hob body 1;

[0024] The first locking assembly includes a first slot 501, a first clamping plate 502, a first arc-shaped slide 503, a second slot 504, a second clamping plate 505 and a second arc-shaped slide 506; a first slot 501 is provided on one side of the upper end cover body 3, and the first slot 501 is symmetrically provided with two groups, a first clamping plate 502 is provided on the outer side of the locking ring 5, and the first clamping plate 502 is symmetrically provided with two groups, the first clamping plate 502 and the first slot 501 are interlocked with each other, and a first arc-shaped slide 503 is provided on one side of the upper end cover body 3, and the first arc-shaped slide 506 is provided 3 is mutually connected with the first card groove 501, a second card groove 504 is opened at one end of the knife shaft 2, and the second card groove 504 is symmetrically opened in two groups. A second clamping plate 505 is set on the inner side of the locking ring 5, and the second clamping plate 505 is symmetrically set in two groups. The second clamping plate 505 and the second card groove 504 are interlocked with each other, and a second arc-shaped slide groove 506 is opened at one end of the knife shaft 2. The second arc-shaped slide groove 506 and the second card groove 504 are mutually connected. After the locking ring 5 is embedded in the positioning groove 4, the first card groove 501 is used to determine the embedding position of the first card plate 502, and the second card groove 502 is used to determine the embedding position of the first card plate 502. The second card slot 504 clearly defines the embedding position of the second card plate 505, and the locking ring 5 is rotated to drive the first card plate 502 to slide along the first arcuate slot 503. At the same time, the second card plate 505 is driven to slide along the second arcuate slot 506, and the first card plate 502 is pressed against the upper end cover body 3, and the second card plate 505 is used to press against the cutter shaft 2, and the upper end cover body 3 is initially locked to the upper end of the hob body 1; the second locking assembly includes a spring 601 and a third card slot 602; a spring 601 is provided on one side of the first card plate 502, and a locking block 6 is provided on the spring At one end of 601, a third slot 602 is provided on one side of the upper end cover body 3. Two groups of third slots 602 are symmetrically provided. The third slot 602 and the first arc-shaped slide groove 503 are interconnected. The locking block 6 and the third slot 602 are engaged with each other. Press the locking block 6 before rotating the locking ring 5 to squeeze the spring 601. The locking block 6 slides in the first arc-shaped slide groove 503. After sliding to the bottom of the third slot 602, the tension of the spring 601 is relaxed, so that the locking block 6 is stuck in the third slot 602, thereby further locking the upper end cover body 3.

[0025] Before using the hob body 1, insert the sealing ring 302 into the sealing groove 301, then insert the upper end cover body 3 onto one end of the cutter shaft 2, and use the oil plug 304 to seal the oil filling port 303;

[0026] Then, embed the locking ring 5 into the positioning groove 4, so that the first clamping plate 502 is embedded in the first clamping groove 501, and at the same time, embed the second clamping plate 505 into the second clamping groove 504, press the locking block 6 to squeeze the spring 601, and rotate the locking ring 5 to drive the first clamping plate 502 to rotate in the first arc-shaped slide groove 503. At the same time, it drives the second clamping plate 505 to rotate in the second arc-shaped slide groove 506. The locking ring 5 pops out when it rotates to the third clamping groove 602.

[0027] Through the above steps, the cutter shaft 2 is set to drive the hob body 1 to rotate, the upper end cover body 3 is used to close the upper end of the hob body 1, the sealing assembly is used to ensure the sealing state of the upper end cover body 3, and the oil seal assembly is used to inject lubricating oil into the hob body 1. The installation position of the locking ring 5 is clearly defined through the positioning groove 4, the locking ring 5 is preliminarily locked using the first locking assembly, the locking ring 5 is rotated to adjust the position of the locking block 6, the locking block 6 is clamped using the second locking assembly, and the upper end cover body 3 is further locked by the locking block 6, thereby ensuring that the upper end cover is firmly connected to the hob, and preventing the upper end cover from loosening during the operation of the single-edged hob.

[0028] 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 locking mechanism for an upper end cover of a single-edged hob, comprising a hob body (1), a cutter shaft (2), an upper end cover body (3), a sealing assembly, and an oil seal assembly; characterized in that: The invention also includes a positioning groove (4), a locking ring (5), a first locking assembly, a locking block (6) and a second locking assembly; a cutter shaft (2) is provided on the inner side of the hob body (1); an upper end cover body (3) is provided on one end of the cutter shaft (2); a sealing assembly is provided on one side of the upper end cover body (3); an oil seal assembly is provided on the other side of the upper end cover body (3); a positioning groove (4) is provided on one side of the upper end cover body (3); a locking ring (5) is provided on the inner side of the positioning groove (4); the locking ring (5) and the positioning groove (4) are engaged with each other; a first locking assembly is provided on one side of the locking ring (5); a locking block (6) is provided on one side of the first locking assembly; two groups of locking blocks (6) are symmetrically provided; and a second locking assembly is provided on one side of the locking block (6).

2. The locking mechanism for the upper end cover of the single-edged hob according to claim 1, characterized in that: The upper end cover body (3) is made of wear-resistant high-chromium steel, wherein the shape of the upper end cover body (3) matches the shape of the upper end of the hob body (1).

3. The locking mechanism for the upper end cover of the single-edged hob according to claim 1, characterized in that: The sealing assembly comprises a sealing groove (301) and a sealing ring (302); a sealing groove (301) is provided on one side of the upper end cover body (3); the sealing groove (301) is provided in two groups; the two groups of sealing grooves (301) are concentric annular grooves with different diameters; a sealing ring (302) is provided on the inner side of the sealing groove (301); the sealing ring (302) is provided in two groups; the sealing ring (302) and the sealing groove (301) are interlocked.

4. The locking mechanism for the upper end cover of the single-edged hob according to claim 1, characterized in that: The oil seal assembly comprises an oil filling port (303) and an oil plug (304); an oil filling port (303) is provided on one side of the upper end cover body (3), and two groups of oil filling ports (303) are symmetrically provided. An oil plug (304) is provided on the inner side of the oil filling port (303), and two groups of oil plugs (304) are symmetrically provided. The oil plugs (304) and the oil filling port (303) are interlocked.

5. The locking mechanism for the upper end cover of the single-edged hob according to claim 1, characterized in that: The first locking assembly includes a first card slot (501), a first card plate (502), a first arc-shaped slide groove (503), a second card slot (504), a second card plate (505) and a second arc-shaped slide groove (506); a first card slot (501) is provided on one side of the upper end cover body (3), a first card plate (502) is provided on the outer side of the locking ring (5), a first arc-shaped slide groove (503) is provided on one side of the upper end cover body (3), a second card slot (504) is provided on one end of the knife shaft (2), a second card plate (505) is provided on the inner side of the locking ring (5), and a second arc-shaped slide groove (506) is provided on one end of the knife shaft (2).

6. The locking mechanism for the upper end cover of the single-edged hob according to claim 5, characterized in that: The first card slot (501) is symmetrically provided with two groups, the first card plate (502) is symmetrically provided with two groups, the first card plate (502) and the first card slot (501) are interlocked, the first arc-shaped slide groove (503) and the first card slot (501) are mutually connected, the second card slot (504) is symmetrically provided with two groups, the second card plate (505) is symmetrically provided with two groups, the second card plate (505) and the second card slot (504) are interlocked, and the second arc-shaped slide groove (506) and the second card slot (504) are mutually connected.

7. The locking mechanism for the upper end cover of the single-edged hob according to claim 5, characterized in that: The second locking assembly includes a spring (601) and a third card slot (602); a spring (601) is provided on one side of the first card plate (502), a locking block (6) is provided at one end of the spring (601), a third card slot (602) is provided on one side of the upper end cover body (3), two groups of third card slots (602) are symmetrically provided, the third card slots (602) and the first arc-shaped slide groove (503) are mutually connected, and the locking block (6) and the third card slot (602) are mutually engaged.

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