Novel spiral feeding bearing chamber of reaction bin

Abstract

A novel spiral feeding bearing chamber of a reaction bin relates to the technical field of supporting devices and comprises a bearing chamber, a conical bore self-aligning roller bearing is sleeved in the bearing chamber, a conical sleeve is sleeved on an inner ring of the conical bore self-aligning roller bearing, a shaft head is mounted in the conical sleeve, and bearing glands are respectively arranged on opposite outer walls of the bearing chamber. The bearing gland abuts against the side wall of an outer ring of the conical hole self-aligning roller bearing, the two ends of the conical sleeve abut against the side wall of an inner ring of the conical hole self-aligning roller bearing respectively, and an axial elastic positioning assembly is further arranged between the bearing gland and the conical sleeve. The utility model solves the problems that the bearing is loosened due to large bolt stress and incapability of fastening when the spiral material accumulation is abnormal in the prior art, and the maintenance cost for replacing the spiral is high due to the fact that a single set of bearing is thin, a shaft head is easy to wear, and the shaft head and the spiral are integrated.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting devices, in particular to a new bearing chamber for a reaction bin feed screw. Background Art

[0002] Mechanical pulp is a general term for pulp made by mechanically grinding fiber raw materials. Due to the different raw materials and grinding methods, there are many varieties. The one made of wood is called mechanical wood pulp or groundwood pulp; the one made of grass is called mechanical grass pulp. Mechanical wood pulp is divided into white groundwood pulp and brown groundwood pulp.

[0003] The shaft head 100 of the feed screw transmission end of the mechanical pulp reaction bin is installed back to back in the bearing chamber 300 by two sets of single-row tapered roller bearings 200, which are compressed and fastened by the bearing cover 400, and the bearing cover 400 is fixed to the bearing chamber 300 by fastening bolts.

[0004] like Figure 2 As shown, the existing device gradually exposes the shortcomings of the technology as it is used, mainly in the following aspects:

[0005] When the spiral material accumulates abnormally, the bolts are subjected to great force and cannot be tightened, causing the bearing to loosen. Since the thickness of a single set of bearings is thin, the shaft head is easily worn. The shaft head and the spiral are integrated, and the maintenance cost of replacing the spiral is high.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] In view of the defects in the prior art, the utility model solves the problem that in the traditional technology, when the spiral material accumulates abnormally, the bolts are subjected to great force and cannot be tightened, causing the bearing to loosen. Since the thickness of a single set of bearings is thin, the shaft head is easily worn, and the shaft head is integrated with the spiral, the maintenance cost of replacing the spiral is high.

[0008] In order to solve the above problems, the utility model provides the following technical solutions:

[0009] A novel bearing chamber for a reaction chamber feed screw comprises a bearing chamber, wherein a tapered hole spherical roller bearing is sleeved in the bearing chamber, the inner ring of the tapered hole spherical roller bearing is sleeved with a tapered sleeve, a shaft head is installed in the tapered sleeve, bearing glands are respectively arranged on opposite outer walls of the bearing chamber, the bearing glands abut against the outer ring side wall of the tapered hole spherical roller bearing, and the two ends of the tapered sleeve abut against the inner ring side wall of the tapered hole spherical roller bearing,

[0010] An axial elastic positioning component is also provided between the bearing cover and the tapered sleeve.

[0011] As an optimized solution, the axial elastic positioning assembly includes a retaining ring respectively connected to the inner wall of the bearing cover, and a swivel rotatably installed on the end of the tapered sleeve, and a compression spring is provided between the retaining ring and the swivel.

[0012] As an optimized solution, one end of the tapered sleeve is provided with a reducing section, and the reducing section is used to abut against one side wall of the inner ring of the tapered hole spherical roller bearing. The other end of the tapered sleeve is threadedly connected with a locking nut, and the locking nut is abutted against the other side wall of the inner ring of the tapered hole spherical roller bearing.

[0013] As an optimized solution, a supporting protrusion section is provided on the end wall of the locking nut, and the supporting protrusion section abuts against the other side wall of the inner ring of the tapered hole spherical roller bearing.

[0014] As an optimized solution, a locking nut having a rotation direction opposite to that of the locking nut is threadedly connected to the outer wall of the conical sleeve.

[0015] As an optimized solution, annular grooves are respectively provided on the opposite end surfaces of the retaining ring and the rotating ring, and the end of the compression spring is clamped in the annular groove.

[0016] As an optimized solution, a limiting ring is coaxially fixedly connected to the side wall of the swivel toward the tapered sleeve, and a limiting groove matching the limiting ring is provided on the end of the tapered sleeve.

[0017] As an optimized solution, the retaining ring and the bearing cover are fixedly connected by bolts, a threaded groove is provided on the retaining ring, and a through hole is provided on the bearing cover.

[0018] As an optimized solution, a tightening protrusion section is provided on the inner wall of the bearing gland, and the tightening protrusion section abuts against the outer ring side wall of the tapered hole spherical roller bearing.

[0019] As an optimized solution, the bearing cover is fixed to the bearing chamber by bolts, a through hole is provided on the bearing cover, and a threaded hole corresponding to the through hole is provided on the bearing chamber.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The bearing chamber is redesigned, and two sets of single-row tapered roller bearings are replaced with a set of tapered hole spherical roller bearings 23224K + tapered sleeves. The round nut tightens the tapered sleeve to fix the bearing more firmly, and the bearing width bearing capacity is increased. The tapered sleeve can well protect the shaft head from secondary damage, effectively extending the service life of the spiral, making the operation more stable, and not easy to be damaged when the material accumulation is abnormal, which can save equipment maintenance costs;

[0022] The tapered sleeve is centered by arranging axial elastic positioning components on both sides of the tapered sleeve, thereby reducing the axial movement of the inner ring of the tapered bore spherical roller bearing and improving the operating stability of the tapered bore spherical roller bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the prior art of the utility model.

[0026] In the figure: 1-bearing chamber; 2-bearing cover; 3-tapered hole spherical roller bearing; 4-tapered sleeve; 5-reducing section; 6-locking nut; 7-tensioning nut; 8-relief ring; 9-swivel; 10-compression spring. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] like Figure 1 As shown, the novel bearing chamber of the reaction chamber feed spiral comprises a bearing chamber 1, wherein a tapered hole spherical roller bearing 3 is sleeved in the bearing chamber 1, wherein the inner ring of the tapered hole spherical roller bearing 3 is sleeved with a tapered sleeve 4, wherein a shaft head is installed in the tapered sleeve 4, and bearing glands 2 are respectively arranged on the opposite outer walls of the bearing chamber 1, wherein the bearing glands 2 abut against the outer ring side wall of the tapered hole spherical roller bearing 3, and the two ends of the tapered sleeve abut against the inner ring side wall of the tapered hole spherical roller bearing 3, respectively.

[0029] An axial elastic positioning component is also provided between the bearing cover 2 and the tapered sleeve 4 .

[0030] The axial elastic positioning assembly includes a retaining ring 8 connected to the inner wall of the bearing cover 2 and a swivel 9 rotatably mounted on the end of the tapered sleeve 4. A compression spring 10 is provided between the retaining ring 8 and the swivel 9.

[0031] A reducing section 5 is provided at one end of the tapered sleeve 4, and abuts against one side wall of the inner ring of the tapered hole spherical roller bearing 3 through the reducing section 5. A locking nut 6 is threadedly connected to the other end of the tapered sleeve 4, and the locking nut 6 abuts against the other side wall of the inner ring of the tapered hole spherical roller bearing 3.

[0032] A supporting protrusion section is provided on the end wall of the locking nut 6 , and the supporting protrusion section abuts against the other side wall of the inner ring of the tapered hole spherical roller bearing 3 .

[0033] A locking nut 7 having a rotation direction opposite to that of the locking nut 6 is threadedly connected to the outer wall of the conical sleeve 4 .

[0034] Annular grooves are respectively provided on the opposite end surfaces of the retaining ring 8 and the rotating ring 9, and the ends of the compression springs 10 are clamped in the annular grooves.

[0035] A limiting ring is coaxially fixedly connected to the side wall of the rotating ring 9 facing the tapered sleeve 4, and a limiting groove matching the limiting ring is provided on the end of the tapered sleeve 4.

[0036] The retaining ring 8 and the bearing cover 2 are fixedly connected by bolts. A threaded groove is provided on the retaining ring 8, and a through hole is provided on the bearing cover 2.

[0037] A tightening protrusion section is provided on the inner wall of the bearing gland 2 , and the tightening protrusion section abuts against the outer ring side wall of the tapered hole spherical roller bearing 3 .

[0038] The bearing cover 2 is fixed to the bearing chamber 1 by bolts. A through hole is provided on the bearing cover 2, and a threaded hole corresponding to the through hole is provided on the bearing chamber 1.

[0039] The working principle of this device is:

[0040] The bearing chamber 1 is redesigned, and the two sets of single-row tapered roller bearings are replaced with a set of tapered hole spherical roller bearings 323224K + tapered sleeve 4. The round nut tightens the tapered sleeve 4 to fix the bearing more firmly, and the bearing width bearing capacity becomes larger. The tapered sleeve 4 can well protect the shaft head from secondary damage, effectively extending the service life of the spiral, making the operation more stable, and not easy to be damaged when the material accumulation is abnormal, which can save equipment maintenance costs;

[0041] The tapered sleeve 4 is centered by arranging axial elastic positioning components on both sides of the tapered sleeve 4, thereby reducing the axial movement of the inner ring of the tapered bore spherical roller bearing 3 and improving the operating stability of the tapered bore spherical roller bearing 3.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. The new bearing chamber of the reaction chamber feed screw is characterized by: The invention comprises a bearing chamber (1), wherein a tapered hole spherical roller bearing (3) is sleeved in the bearing chamber (1), the inner ring of the tapered hole spherical roller bearing (3) is sleeved with a tapered sleeve (4), a shaft head is installed in the tapered sleeve (4), bearing pressure covers (2) are respectively provided on the opposite outer walls of the bearing chamber (1), the bearing pressure covers (2) abut against the outer ring side wall of the tapered hole spherical roller bearing (3), and the two ends of the tapered sleeve abut against the inner ring side wall of the tapered hole spherical roller bearing (3), An axial elastic positioning component is also provided between the bearing cover (2) and the tapered sleeve (4).

2. The novel bearing chamber for the reaction chamber feed screw according to claim 1 is characterized by: The axial elastic positioning assembly comprises a retaining ring (8) respectively connected to the inner wall of the bearing cover (2), and a swivel ring (9) rotatably mounted on the end of the tapered sleeve (4), and a compression spring (10) is provided between the retaining ring (8) and the swivel ring (9).

3. The novel bearing chamber for the reaction chamber feed screw according to claim 2 is characterized by: One end of the tapered sleeve (4) is provided with a reducing section (5), and the reducing section (5) abuts against one side wall of the inner ring of the tapered hole spherical roller bearing (3); the other end of the tapered sleeve (4) is threadedly connected with a locking nut (6), and the locking nut (6) abuts against the other side wall of the inner ring of the tapered hole spherical roller bearing (3).

4. The novel bearing chamber for the reaction chamber feed screw according to claim 3 is characterized by: A supporting protrusion section is provided on the end wall of the locking nut (6), and the supporting protrusion section abuts against the other side wall of the inner ring of the tapered hole spherical roller bearing (3).

5. The novel bearing chamber for the reaction chamber feed screw according to claim 4 is characterized by: A locking nut (7) having a rotation direction opposite to that of the locking nut (6) is also threadedly connected to the outer wall of the conical sleeve (4).

6. The novel bearing chamber for the feed screw of the reaction chamber according to claim 5 is characterized by: Annular grooves are respectively provided on the opposite end surfaces of the retaining ring (8) and the rotating ring (9), and the ends of the compression springs (10) are clamped in the annular grooves.

7. The novel bearing chamber for the feed screw of the reaction chamber according to claim 6 is characterized by: The rotating ring (9) is coaxially fixedly connected to a limit ring on the side wall facing the conical sleeve (4), and a limit groove matching the limit ring is provided on the end of the conical sleeve (4).

8. The novel bearing chamber for the reaction chamber feed screw according to claim 7 is characterized by: The retaining ring (8) and the bearing cover (2) are fixedly connected by bolts; a threaded groove is provided on the retaining ring (8) and a through hole is provided on the bearing cover (2).

9. The novel bearing chamber for the reaction chamber feed screw according to claim 8 is characterized by: A tightening protrusion section is provided on the inner wall of the bearing pressure cover (2), and the tightening protrusion section abuts against the outer ring side wall of the tapered hole spherical roller bearing (3).

10. The novel bearing chamber for the feed screw of the reaction chamber according to claim 9 is characterized in that: The bearing pressure cover (2) is fixed to the bearing chamber (1) by means of bolts, and the bearing chamber (1) is provided with a threaded hole corresponding to the through hole.

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