Speed reducer bearing chamber for pulper

Abstract

The utility model relates to a speed reducer bearing chamber for a pulper, and belongs to the field of pulping equipment. According to the technical scheme, the speed reducer bearing chamber for the pulper comprises a bearing chamber body, the two sides of the bearing chamber body are connected with a first bearing position and a second bearing position respectively, the first bearing position and the second bearing position are both used for containing bearings, the second bearing position is fixedly connected with the bearing chamber body, and the first bearing position is connected with the bearing chamber body through bolts. Through the arrangement of the detachable first bearing position, after long-time use, when the first bearing position is abraded or damaged due to long-time large impact, a worker only needs to disassemble and replace the first bearing position to complete maintenance of the bearing chamber, and the situation that the whole bearing chamber needs to be disassembled to be returned to a factory for maintenance is avoided; and the arranged detachable first bearing position is low in comprehensive maintenance cost and short in maintenance time, and the fund consumption of spare parts of the first bearing position in a workshop is low.

Description

Technical Field

[0001] The utility model relates to the technical field of pulping equipment, in particular to a reducer bearing chamber for a pulper. Background Art

[0002] Vertical hydraulic pulper, as a traditional and widely used pulping equipment, has a unique and efficient working principle. It mainly relies on the high-speed rotation of the rotor to produce a strong mechanical action. At the same time, the rotor will form a strong hydraulic shear effect during the rotation process. This dual force enables it to quickly and effectively break up pulp boards, damaged paper and various types of waste paper, ensuring that the pulping process is both efficient and stable.

[0003] When the impeller of the vertical hydraulic pulper rotates, the blades and the knives fixed on them crush and tear the pulp in contact with it at a high circumferential speed, and a high-speed turbulent area is formed around the impeller. The friction and turbulent shear force generated promote fiber dissociation. At this time, due to the heavy weight of the pulp bag, it will cause a greater impact on the pulper rotor when it falls into the pulper. After being impacted for a long time, the wear of the bearing chamber is aggravated. When the bearing chamber is worn or damaged too much, this problem is often solved by replacing the entire bearing chamber.

[0004] After the reducer for a vertical hydraulic pulper has been running for a period of time, abnormal vibration detection often occurs near the upper end cover of the reducer center shaft. For example, a small-volume vertical hydraulic pulper shaft device mentioned in the patent application document with application number CN201020637259.4. Since the bearing chambers of the pulpers are currently of integrated design, when the above-mentioned abnormal vibration detection occurs due to wear or other damage to the bearing chamber, it needs to be returned to the factory for overhaul, which has high maintenance costs and long maintenance time, and the workshop has a high risk of not having spare parts. Utility Model Content

[0005] The utility model aims at the problems in the prior art and provides a reducer bearing chamber for a pulper that can facilitate the disassembly and replacement of worn parts, thereby solving the problems in the prior art that when the bearing chamber is worn or otherwise damaged, it needs to be returned to the factory for overhaul, resulting in high maintenance costs and long maintenance time, and the workshop has a high risk of not having spare parts.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A reducer bearing chamber for a pulper includes a bearing chamber body, a first bearing position and a second bearing position are connected to both sides of the bearing chamber body, the first bearing position and the second bearing position are used to place bearings, the second bearing position is fixedly connected to the bearing chamber body, and the first bearing position and the bearing chamber body are connected by bolts. By setting a detachable first bearing position, after long-term use, when the first bearing position is subjected to long-term large impact and is worn or damaged, the staff only needs to disassemble and replace the first bearing position to complete the maintenance of the bearing chamber, avoiding the need to disassemble the entire bearing chamber for returning to the factory for maintenance. The detachable first bearing position has low comprehensive maintenance costs, short maintenance time, and low capital consumption for spare parts for the first bearing position in the workshop.

[0008] Preferably, the bearing chamber device further comprises a housing, which is fixedly connected to the bearing chamber body via a side plate. The side plate and the housing facilitate the installation of the bearing chamber body on the pulper.

[0009] Preferably, the bearing chamber device further comprises a rib plate, and the three side end surfaces of the rib plate are respectively fixedly connected to the housing, the side plate and the bearing chamber body. The rib plate is provided to support the bearing chamber body, the side plate and the housing, thereby avoiding the risk of deformation of the side plate or the housing when subjected to external forces for a long time.

[0010] Preferably, the bearing chamber device further comprises a first retaining ring and a second retaining ring, the first retaining ring and the second retaining ring are fixedly arranged on the housing by bolts, the diameter of the first retaining ring is larger than the diameter of the second retaining ring, at least one retaining bar is arranged between the first retaining ring and the second retaining ring, and the two ends of the retaining bar are respectively fixedly connected to the first retaining ring and the second retaining ring. By providing the first retaining ring, the second retaining ring and the retaining bar, when the pulp bag falls above the bearing chamber, the retaining bar can intercept and buffer the pulp bag, thereby reducing the impact of the pulp bag on the pulper rotor, thereby reducing the force between the bearing and the first bearing position, and extending the service life of the bearing chamber.

[0011] Preferably, the bearing chamber device further comprises an air intake duct, an air intake port is provided on the side plate, and the air intake duct is connected to the inside of the side plate through the air intake port. The air intake duct and the air intake port can maintain the pressure balance inside and outside the bearing chamber. When the temperature or pressure inside the bearing chamber is too high, the air intake port can allow outside air to enter, thereby reducing the temperature and pressure and maintaining the stable operation of the equipment.

[0012] Preferably, the side plate is also provided with an inspection port, which facilitates the staff to complete the disassembly and replacement of the first bearing position without disassembling other components, thereby shortening the maintenance time.

[0013] Preferably, an overflow pipe is connected to the housing. By setting the overflow pipe, the flow of liquid in the bearing chamber can be regulated and stabilized. This helps to maintain the stability of the liquid level in the bearing chamber and ensure that the equipment operates in the best state.

[0014] It can be seen from the above technical solutions that the advantages of the utility model are as follows: by setting a removable first bearing position, after long-term use, when the first bearing position is subjected to long-term large impact and is worn or damaged, the staff only needs to disassemble and replace the first bearing position to complete the maintenance of the bearing chamber, avoiding the need to disassemble the entire bearing chamber for return to the factory for maintenance. The removable first bearing position has low comprehensive maintenance costs, short maintenance time, and low capital consumption for spare parts for the first bearing position in the workshop. The side plates and shells are provided to facilitate the installation of the main body of the bearing chamber on the pulper. The rib plates are provided to support the main body of the bearing chamber, the side plates, and the shell, avoiding the risk of deformation of the side plates or the shell under long-term external forces. The first retaining ring, the second retaining ring, and the retaining bar are provided, when the pulp bag falls above the bearing chamber, the retaining bar can intercept and buffer the pulp bag, reducing the impact of the pulp bag on the pulper rotor, thereby reducing the force between the bearing and the first bearing position, and extending the service life of the bearing chamber. The air inlet and inlet can maintain the pressure balance inside and outside the bearing room. When the temperature or pressure inside the bearing room is too high, the inlet allows outside air to enter, thereby reducing the temperature and pressure and maintaining stable operation of the equipment. The inspection port allows the staff to complete the disassembly and replacement of the first bearing position without disassembling the other parts, thus shortening the maintenance time. The overflow pipe can be used to adjust and stabilize the liquid flow in the bearing room. This helps to maintain the stability of the liquid level in the bearing room and ensure that the equipment operates in the best condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0017] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0018] Figure 3 The structure of the embodiment of the utility model is shown in FIG. Figure 3 .

[0019] Description of main reference numerals

[0020] In the figure: 1. Bearing chamber body; 2. First bearing position; 3. Second bearing position; 4. Housing; 5. Side plate; 6. Rib plate; 7. First retaining ring; 8. Retaining bar; 9. Air intake duct; 10. Inspection port; 11. Overflow duct; 12. Second retaining ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] Example:

[0023] like Figure 1-Figure 3 As shown, a bearing chamber of a reducer for a pulper comprises a bearing chamber main body 1, and a first bearing position 2 and a second bearing position 3 are respectively connected on both sides of the bearing chamber main body 1, the first bearing position 2 and the second bearing position 3 are both used to place bearings, the second bearing position 3 is fixedly connected to the bearing chamber main body 1, and the first bearing position 2 and the bearing chamber main body 1 are connected by bolts. By setting up a detachable first bearing position 2, after long-term use, when the first bearing position 2 is subjected to long-term and large impact and is worn or damaged, the staff only needs to disassemble and replace the first bearing position 2 to complete the maintenance of the bearing chamber, avoiding the need to disassemble the entire bearing chamber for returning to the factory for maintenance. The detachable first bearing position 2 has low comprehensive maintenance cost and short maintenance time, and the workshop consumes low funds for spare parts of the first bearing position 2.

[0024] In this embodiment, the bearing chamber device also includes a shell 4, which is fixedly connected to the bearing chamber body 1 through a side plate 5. The bearing chamber device also includes a rib plate 6, and the three side end surfaces of the rib plate 6 are respectively fixedly connected to the shell 4, the side plate 5 and the bearing chamber body. An inspection port 10 is also opened on the side plate 5, and an overflow pipe 11 is connected to the shell 4. In this way, the side plate 5 and the shell 4 are arranged to facilitate the installation of the bearing chamber body 1 on the pulper. The rib plate 6 is used to support the bearing chamber body 1, the side plate 5 and the shell 4 to avoid the risk of deformation of the side plate 5 or the shell 4 under long-term external force. The inspection port 10 is provided to facilitate the staff to complete the disassembly and replacement of the first bearing position 2 without disassembling the remaining components, thereby shortening the maintenance time. The overflow pipe 11 is provided to achieve the regulation and stabilization of the liquid flow in the bearing chamber, which helps to maintain the stability of the liquid level in the bearing chamber and ensure that the equipment runs in the best condition.

[0025] In the present embodiment, the bearing chamber device further comprises a first retaining ring 7 and a second retaining ring 12, the first retaining ring 7 and the second retaining ring 12 are fixedly arranged on the housing 4 by bolts, the diameter of the first retaining ring 7 is larger than the diameter of the second retaining ring 12, at least one retaining bar 8 is arranged between the first retaining ring 7 and the second retaining ring 12, and in the present embodiment, 8 retaining bars 8 are evenly arranged, and both ends of the retaining bar 8 are respectively fixedly connected to the first retaining ring 7 and the second retaining ring 12. In this way, through the first retaining ring 7, the second retaining ring 12 and the retaining bar 8, when the pulp bag falls above the bearing chamber, the retaining bar 8 can intercept and buffer the pulp bag, thereby reducing the impact of the pulp bag on the pulper rotor, thereby reducing the force between the bearing and the first bearing position 2, and extending the service life of the bearing chamber.

[0026] Preferably, the bearing chamber device also includes an air intake duct 9, and an air intake port is opened on the side panel 5. The air intake duct 9 is connected to the inside of the side panel 5 through the air intake port. With such an arrangement, the pressure balance inside and outside the bearing chamber can be maintained through the arranged air intake duct 9 and the air intake port. When the temperature or pressure inside the bearing chamber is too high, the air intake port can allow outside air to enter, thereby reducing the temperature and pressure and maintaining stable operation of the equipment.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reducer bearing chamber for a pulper, comprising a bearing chamber body (1), characterized in that: A first bearing position (2) and a second bearing position (3) are respectively connected to both sides of the bearing chamber body (1); the first bearing position (2) and the second bearing position (3) are both used to place bearings; the second bearing position (3) is fixedly connected to the bearing chamber body (1); and the first bearing position (2) and the bearing chamber body (1) are connected via bolts.

2. The reducer bearing chamber for a pulper according to claim 1, characterized in that: The bearing chamber device also includes a housing (4), and the housing (4) is fixedly connected to the bearing chamber body (1) via a side plate (5).

3. The reducer bearing chamber for a pulper according to claim 2, characterized in that: The bearing chamber device also includes a rib plate (6), and three side end surfaces of the rib plate (6) are respectively fixedly connected to the housing (4), the side plate (5) and the bearing chamber body.

4. The reducer bearing chamber for a pulper according to claim 3, characterized in that: The bearing chamber device further comprises a first retaining ring (7) and a second retaining ring (12), wherein the first retaining ring (7) and the second retaining ring (12) are fixedly arranged on the housing (4) by means of bolts, wherein the diameter of the first retaining ring (7) is greater than the diameter of the second retaining ring (12), and at least one retaining bar (8) is arranged between the first retaining ring (7) and the second retaining ring (12), wherein both ends of the retaining bar (8) are respectively fixedly connected to the first retaining ring (7) and the second retaining ring (12).

5. The reducer bearing chamber for a pulper according to claim 2, characterized in that: The bearing chamber device also includes an air intake pipe (9), an air intake port is provided on the side plate (5), and the air intake pipe (9) is connected to the inside of the side plate (5) through the air intake port.

6. The reducer bearing chamber for a pulper according to claim 2, characterized in that: An inspection opening (10) is also provided on the side plate (5).

7. The reducer bearing chamber for a pulper according to claim 2, characterized in that: An overflow pipe (11) is connected to the shell (4).

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