Single-blade hob bearing spacer ring mounting structure

Abstract

The utility model relates to the technical field of single-blade hobs, in particular to a single-blade hob bearing spacer ring mounting structure which comprises a cutter shaft body, a lower end cover, an upper end cover, a bearing body, a cutter hub, a cutter ring, a hob assembly, a spacer ring body, a spacer ring assembly, a positioning ring and a mounting assembly. A lower end cover is arranged at one end of the cutter shaft body, an upper end cover is arranged at the other end of the cutter shaft body, a bearing body is arranged on the outer side of the cutter shaft body, a spacer ring body is arranged on the inner side of the bearing body, a spacer ring assembly is arranged on one side of the spacer ring body, a positioning ring is arranged on one side of the spacer ring assembly, and a mounting assembly is arranged on one side of the positioning ring. A cutter hub is arranged on one side of the bearing body, a cutter ring is arranged on the outer side of the cutter hub, and a hob assembly is arranged on the outer side of the cutter shaft body. Through a multidirectional limiting mode, the position of the spacer ring is stabilized and fixed, the axial relative position of each component in the hob is accurately kept, the bearing is uniformly stressed, the service life of the hob is prolonged, and the operation stability of the single-blade hob is effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of single-edged hobs, in particular to a single-edged hob bearing spacer ring mounting structure. Background Art

[0002] The single-edged hob is the most frequently used tool in mixed geology and hard rock geology. It uses the rolling of the cutter ring to trench and crush the rock to achieve the effect of rock crushing. During use, the elastic contraction of the spacer ring makes the bearing fit stronger, effectively stabilizes the internal tightness of the tool, makes the tool torque and impact resistance stable, and effectively improves the service life of the tool.

[0003] Most of the current single-edged hob bearing spacer ring installation structures are relatively simple, and the stability of the spacer ring installation is often poor. The bearing may be subjected to uneven axial and radial forces, resulting in increased wear between the hob body and the raceway. It may also cause poor cutting force transmission, causing the hob to jam, affecting the continuity and stability of the processing.

[0004] Therefore, in view of the fact that the existing single-edged hob bearing spacer ring installation stability is poor and affects the efficient execution of processing operations, a single-edged hob bearing spacer ring installation structure can be designed. Through multi-directional limiting, the spacer ring position can be stably fixed, and the axial relative positions of the various components inside the hob can be accurately maintained, so that the bearing is evenly stressed, unnecessary shaking and wear can be avoided, and the service life of the hob can be extended, thereby effectively enhancing the operating stability of the single-edged hob. Utility Model Content

[0005] In order to overcome the poor installation stability of most single-edged hob bearing spacer rings, the bearings may be subjected to uneven axial and radial forces, resulting in increased wear between the hob body and the raceway, and may also cause poor cutting force transmission, affecting the continuity and stability of processing.

[0006] The technical solution of the utility model is: a single-edged hob bearing spacer ring installation structure, including a cutter shaft body, a lower end cover, an upper end cover, a cutter hub, a cutter ring, a bearing body, a hob assembly, an oil injection assembly, a spacer ring body, a spacer ring assembly, a positioning ring and an installation assembly; a lower end cover is provided at one end of the cutter shaft body, an upper end cover is provided at the other end of the cutter shaft body, an oil injection assembly is provided on one side of the upper end cover, a bearing body is provided on the outside of the cutter shaft body, two groups of bearing bodies are symmetrically provided, a spacer ring body is provided on the inside of the bearing body, the spacer ring body is provided between the two groups of bearing bodies, a spacer ring assembly is provided on one side of the spacer ring body, a positioning ring is provided on one side of the spacer ring assembly, multiple groups of positioning rings are provided, a mounting assembly is provided on one side of the positioning ring, a cutter hub is provided on one side of the bearing body, a cutter ring is provided on the outside of the cutter hub, and a hob assembly is provided on the outside of the cutter shaft body.

[0007] Preferably, the lower end of the cutter shaft body is locked by setting a lower end cover, the upper end of the cutter shaft body is locked by the upper end cover, the position of the cutter ring is fixed by the cutter hub, the hob assembly is used to fasten the various structural positions on the cutter shaft body, the cutter shaft body is rotated to drive the bearing body to rotate synchronously, the bearing body is used to ensure the stable rotation of the cutter ring, the cutter ring is rotated to perform processing operations, the lubricating oil is injected into the single-edged hob through the oil injection assembly, the positioning ring position is fixed by the installation assembly, the installation position of the spacer ring body is fixed by the positioning ring, and the spacer ring assembly is used to connect and fix the spacer ring body to the two groups of bearing bodies, thereby achieving precise maintenance of the axial relative positions of the various components inside the hob, making the bearings evenly stressed, avoiding unnecessary shaking and wear, extending the service life of the hob, and enhancing the operating stability of the single-edged hob.

[0008] Preferably, the hob assembly includes a retaining ring, a first mounting groove and a locking ring; a retaining ring is provided on one side of the lower end cover, a retaining ring is provided on one side of the upper end cover, the retaining ring and one side of the bearing body are engaged with each other, a first mounting groove is provided on one side of the upper end cover, a locking ring is provided on the inner side of the first mounting groove, and the locking ring is clamped to the outer side of the upper end of the cutter shaft body.

[0009] Preferably, the oil filling assembly includes an oil inlet and an oil plug; an oil inlet is opened on one side of the upper end cover, two groups of oil inlets are symmetrically arranged, and an oil plug is arranged on the inner side of the oil inlet.

[0010] Preferably, the spacer ring assembly includes a second mounting groove, an external connecting spring, an internal connecting spring, an upper spacer ring and a lower spacer ring; a second mounting groove is provided on one side of the bearing body, an external connecting spring is provided on the outer diameter side of the spacer ring body, an upper spacer ring is provided on one end of the external connecting spring, an internal connecting spring is provided on the inner diameter of the spacer ring body, and a lower spacer ring is provided on one end of the inner connecting spring.

[0011] Preferably, the spacer ring body is arranged on the inner side of the second mounting groove, the upper spacer ring and the lower spacer ring are embedded in the inner side of the second mounting groove, multiple groups of external connecting springs are provided, multiple groups of internal connecting springs are provided, the positioning rings are symmetrically arranged on both sides of the upper spacer ring, and the positioning rings are symmetrically arranged on both sides of the lower spacer ring.

[0012] Preferably, the mounting assembly includes a third mounting groove, a clamping groove and a clamping column; the third mounting groove is opened on one side of the bearing body, the clamping groove is opened on the inner side of the second mounting groove, and the clamping column is provided on one side of the spacer ring body.

[0013] Preferably, the third mounting groove and the second mounting groove are interconnected, the positioning ring and the third mounting groove are interlocked with each other, multiple groups of slots are provided, multiple groups of clamping columns are provided, the clamping columns are provided on both sides of the spacer ring body, and the clamping columns and the slots are engaged with each other.

[0014] Beneficial effects of the utility model:

[0015] 1. When using a single-edge hob, lock the lower end of the cutter shaft body by setting the lower end cover, lock the upper end of the cutter shaft body by using the upper end cover, fix the position of the cutter ring by the cutter hub, rotate the cutter shaft body to drive the bearing body to rotate synchronously, use the bearing body to ensure the stable rotation of the cutter ring, rotate the cutter ring to perform processing operations, fix the installation position of the spacer ring body by the positioning ring, so that the spacer ring body can stably connect and fix the two sets of bearing bodies, so as to solve the problem that most of the single-edge hob bearing spacer ring installation structures are relatively simple, the stability of the spacer ring installation is often poor, the bearing may be subjected to uneven axial and radial forces, resulting in increased wear between the hob body and the raceway, and may also cause poor cutting force transmission, causing the hob to jam, thereby enhancing the operating stability of the single-edge hob. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the single-edged hob bearing spacer ring installation structure of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the upper end cover of the single-edged hob bearing spacer ring mounting structure of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the spacer ring main body of the single-edged hob bearing spacer ring installation structure of the present invention;

[0019] Figure 4 What is shown is a schematic diagram of the cross-sectional three-dimensional structure of the bearing body of the single-edged hob bearing spacer ring installation structure of the present invention.

[0020] Explanation of the accompanying drawings: 1. Blade shaft body; 101. Lower end cover; 102. Upper end cover; 103. Blade hub; 104. Blade ring; 105. Retaining ring; 106. First mounting groove; 107. Locking ring; 2. Bearing body; 301. Oil inlet; 302. Oil plug; 4. Spacer ring body; 401. Second mounting groove; 402. External connecting spring; 403. Internal connecting spring; 404. Upper spacer ring; 405. Lower spacer ring; 5. Positioning ring; 501. Third mounting groove; 502. Retaining groove; 503. Retaining column. 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 utility model provides an embodiment: a single-edged hob bearing spacer ring installation structure, including a cutter shaft body 1, a lower end cover 101, an upper end cover 102, a cutter hub 103, a cutter ring 104, a bearing body 2, a hob assembly, an oil injection assembly, a spacer ring body 4, a spacer ring assembly, a positioning ring 5 and an installation assembly; one end of the cutter shaft body 1 is provided with a lower end cover 101, the other end of the cutter shaft body 1 is provided with an upper end cover 102, one side of the upper end cover 102 is provided with an oil injection assembly, and the outer side of the cutter shaft body 1 is provided with a A bearing body 2 is provided, and two groups of bearing bodies 2 are symmetrically arranged. A spacer ring body 4 is provided on the inner side of the bearing body 2, and the spacer ring body 4 is provided between the two groups of bearing bodies 2. A spacer ring assembly is provided on one side of the spacer ring body 4, and a positioning ring 5 is provided on one side of the spacer ring assembly. There are multiple groups of positioning rings 5, and an installation assembly is provided on one side of the positioning ring 5. A cutter hub 103 is provided on one side of the bearing body 2, and a cutter ring 104 is provided on the outside of the cutter hub 103. A hob assembly is provided on the outside of the cutter shaft body 1.

[0023] See also Figure 2 In this embodiment, the hob assembly includes a snap ring 105, a first mounting groove 106 and a locking ring 107; a snap ring 105 is provided on one side of the lower end cover 101, and a snap ring 105 is provided on one side of the upper end cover 102. The snap ring 105 is engaged with one side of the bearing body 2, and a first mounting groove 106 is provided on one side of the upper end cover 102. A locking ring 107 is provided on the inner side of the first mounting groove 106. The locking ring 107 is clamped to the outer side of the upper end of the cutter shaft body 1, and the shaft is clamped and fixed by the snap ring 105. On one side of the bearing body 2, the first mounting groove 106 is used to clearly define the installation position of the locking ring 107, and the upper end cover 102 is locked and fixed to the upper end of the cutter shaft body 1 through the locking ring 107; the oil filling assembly includes an oil inlet 301 and an oil plug 302; one side of the upper end cover 102 is provided with an oil inlet 301, and the oil inlet 301 is symmetrically arranged in two groups. The oil plug 302 is provided on the inner side of the oil inlet 301, and lubricating oil is injected through the oil inlet 301, and the oil plug 302 is used to flexibly block the oil inlet 301;

[0024] See also Figure 3-Figure 4In this embodiment, the spacer ring assembly includes a second mounting groove 401, an external connecting spring 402, an internal connecting spring 403, an upper spacer ring 404 and a lower spacer ring 405; a second mounting groove 401 is opened on one side of the bearing body 2, the spacer ring body 4 is arranged on the inner side of the second mounting groove 401, the upper spacer ring 404 and the lower spacer ring 405 are embedded in the inner side of the second mounting groove 401, an external connecting spring 402 is provided on the outer diameter side of the spacer ring body 4, multiple groups of external connecting springs 402 are provided, an upper spacer ring 404 is provided at one end of the external connecting spring 402, and the positioning ring 5 is symmetrically arranged on both sides of the upper spacer ring 404. The inner diameter is provided with an inner connecting spring 403, and multiple groups of inner connecting springs 403 are provided. A lower spacer ring 405 is provided at one end of the inner connecting spring 403, and the positioning ring 5 is symmetrically arranged on both sides of the lower spacer ring 405. The installation position of the spacer ring body 4 is clearly defined by the second mounting groove 401. The outer connecting spring 402 is used to connect and fix the upper spacer ring 404, and the outer connecting spring 402 is squeezed by the upper spacer ring 404. The inner connecting spring 403 is used to connect and fix the lower spacer ring 405, and the inner connecting spring 403 is squeezed by the lower spacer ring 405 to ensure that the spacer ring body 4 is elastically connected to the bearing body 2 in a small range of radial direction, thereby ensuring the stable operation of the bearing body 2.

[0025] The mounting assembly includes a third mounting groove 501, a clamping groove 502 and a clamping column 503; a third mounting groove 501 is provided on one side of the bearing body 2, the third mounting groove 501 and the second mounting groove 401 are interconnected, the positioning ring 5 and the third mounting groove 501 are interlocked with each other, a clamping groove 502 is provided on the inner side of the second mounting groove 401, and the clamping groove 502 is provided in multiple groups, a clamping column 503 is provided on one side of the spacer ring body 4, and the clamping column 503 is provided in multiple groups, and the clamping column 503 is provided on both sides of the spacer ring body 4, and the clamping column 503 and the clamping groove 502 are interlocked with each other, and the positioning ring 5 is clearly engaged through the third mounting groove 501, and the clamping column 503 is embedded in the clamping groove 502 to further fix the mounting position of the spacer ring body 4.

[0026] Before operating the hob, fix the lower end cover 101 and the upper end cover 102 to the two ends of the cutter shaft body 1 through the retaining ring 105, install the locking ring 107 in the first installation groove 106, inject lubricating oil through the oil inlet 301, and then use the oil plug 302 to seal the oil inlet 301;

[0027] Then, install the spacer ring body 4 in the second installation groove 401, use the third installation groove 501 to clamp the positioning ring 5, and at the same time, clamp the clamping column 503 into the clamping groove 502;

[0028] When the hob is running, the rotating cutter shaft body 1 drives the bearing body 2 to run, thereby driving the cutter ring 104 on the cutter hub 103 to rotate, and the cutter ring 104 is used to perform processing operations. At the same time, the upper spacer ring 404 and the lower spacer ring 405 are squeezed to drive the outer connecting spring 402 and the inner connecting spring 403 to expand and contract, ensuring that the radial position of the spacer ring body 4 is stable.

[0029] Through the above steps, the lower end of the cutter shaft body 1 is locked by setting the lower end cover 101, the upper end of the cutter shaft body 1 is locked by using the upper end cover 102, the position of the cutter ring 104 is fixed by the cutter hub 103, and the various structural positions on the cutter shaft body 1 are fastened by the hob assembly. The cutter shaft body 1 is rotated to drive the bearing body 2 to rotate synchronously. The bearing body 2 is used to ensure the stable rotation of the cutter ring 104. The cutter ring 104 is rotated to perform processing operations. The lubricating oil is injected into the interior of the single-edged hob through the oil injection assembly. The position of the positioning ring 5 is fixed by the installation assembly. The installation position of the spacer ring body 4 is fixed by the positioning ring 5. The spacer ring assembly is used to connect and fix the spacer ring body 4 to the two groups of bearing bodies 2, thereby accurately maintaining the axial relative positions of the various components inside the hob, making the bearings evenly stressed, avoiding unnecessary shaking and wear, and extending the service life of the hob.

[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 bearing spacer ring mounting structure, comprising a cutter shaft body (1), a lower end cover (101), an upper end cover (102), a cutter hub (103), a cutter ring (104), a bearing body (2), a hob assembly, and an oil injection assembly; characterized in that: The invention also includes a spacer ring body (4), a spacer ring assembly, a positioning ring (5) and an installation assembly; a lower end cover (101) is provided at one end of the cutter shaft body (1), an upper end cover (102) is provided at the other end of the cutter shaft body (1), an oil injection assembly is provided on one side of the upper end cover (102), a bearing body (2) is provided on the outside of the cutter shaft body (1), two groups of bearing bodies (2) are symmetrically provided, a spacer ring body (4) is provided on the inside of the bearing body (2), the spacer ring body (4) is provided between the two groups of bearing bodies (2), a spacer ring assembly is provided on one side of the spacer ring body (4), a positioning ring (5) is provided on one side of the spacer ring assembly, multiple groups of positioning rings (5) are provided, a mounting assembly is provided on one side of the positioning ring (5), a cutter hub (103) is provided on one side of the bearing body (2), a cutter ring (104) is provided on the outside of the cutter hub (103), and a hob assembly is provided on the outside of the cutter shaft body (1).

2. The single-edged hob bearing spacer ring mounting structure according to claim 1, characterized in that: The hob assembly includes a snap ring (105), a first mounting groove (106) and a locking ring (107); a snap ring (105) is provided on one side of the lower end cover (101), a snap ring (105) is provided on one side of the upper end cover (102), the snap ring (105) and one side of the bearing body (2) are engaged with each other, a first mounting groove (106) is provided on one side of the upper end cover (102), a locking ring (107) is provided on the inner side of the first mounting groove (106), and the locking ring (107) is clamped to the outer side of the upper end of the cutter shaft body (1).

3. The single-edged hob cutter bearing spacer ring mounting structure according to claim 1, characterized in that: The oil filling assembly comprises an oil inlet (301) and an oil plug (302); an oil inlet (301) is provided on one side of the upper end cover (102), two groups of oil inlets (301) are symmetrically arranged, and an oil plug (302) is provided on the inner side of the oil inlet (301).

4. The single-edged hob bearing spacer ring mounting structure according to claim 1, characterized in that: The spacer ring assembly comprises a second mounting groove (401), an external connecting spring (402), an internal connecting spring (403), an upper spacer ring (404) and a lower spacer ring (405); a second mounting groove (401) is provided on one side of the bearing body (2); an external connecting spring (402) is provided on one side of the outer diameter of the spacer ring body (4); an upper spacer ring (404) is provided on one end of the external connecting spring (402); an internal connecting spring (403) is provided on the inner diameter of the spacer ring body (4); and a lower spacer ring (405) is provided on one end of the internal connecting spring (403).

5. The single-edged hob bearing spacer ring mounting structure according to claim 4, characterized in that: The spacer ring body (4) is arranged on the inner side of the second installation groove (401), the upper spacer ring (404) and the lower spacer ring (405) are embedded in the inner side of the second installation groove (401), multiple groups of external connecting springs (402) are provided, multiple groups of internal connecting springs (403) are provided, and the positioning rings (5) are symmetrically arranged on both sides of the upper spacer ring (404), and the positioning rings (5) are symmetrically arranged on both sides of the lower spacer ring (405).

6. The single-edged hob bearing spacer ring mounting structure according to claim 4, characterized in that: The mounting assembly comprises a third mounting groove (501), a clamping groove (502) and a clamping column (503); the third mounting groove (501) is provided on one side of the bearing body (2), the clamping groove (502) is provided on the inner side of the second mounting groove (401), and the clamping column (503) is provided on one side of the spacer ring body (4).

7. The single-edged hob bearing spacer ring mounting structure according to claim 6, characterized in that: The third installation groove (501) and the second installation groove (401) are interconnected, the positioning ring (5) and the third installation groove (501) are interlocked with each other, the clamping groove (502) is provided with multiple groups, the clamping column (503) is provided with multiple groups, the clamping column (503) is provided on both sides of the spacer ring body (4), and the clamping column (503) and the clamping groove (502) are mutually engaged.

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