Hammer mill bearing block anti-loosening device

Abstract

This utility model discloses an anti-loosening device for a hammer crusher bearing seat, including a crusher housing. Two support seats are respectively installed on the two side walls of the crusher housing at the end of the crusher main shaft. A bearing limiting seat is installed at the top of each support seat, and a limiting groove is formed inside the bearing limiting seat. The beneficial effects are: by adding a bearing limiting seat between the bearing seat and the support seats, and by forming a beveled limiting groove inside the bearing limiting seat, and by pre-reserving a bevel at the mating part of the bearing seat with the limiting groove, the bearing seat, after being installed in the bearing limiting seat under the action of locking bolts and locking nuts, can effectively reduce the force exerted on the bearing seat by the alternating load generated by the rotation of the hammer crusher main shaft. This effectively avoids the risk of the bearing seat loosening under the alternating load applied by the hammer crusher main shaft, resulting in better stability of the hammer crusher main shaft and preventing equipment damage.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening technology for hammer crusher bearing seats, specifically to an anti-loosening device for hammer crusher bearing seats. Background Technology

[0002] The bearing housing of a hammer crusher is an important component that supports the main shaft and bearings, playing a role in supporting, bearing loads, and ensuring the stable operation of the main shaft. The design and working condition of the bearing housing directly affect the crusher's operating efficiency, reliability, and maintenance cycle.

[0003] Although the main shaft bearing housings of hammer crushers on the market can provide rotational support for the shaft, they lack anti-loosening devices. This makes them prone to loosening due to uneven wear of the hammers. The centrifugal force generated by the rotation of the hammers can cause alternating loads on the bearing housing through the main shaft, leading to damage to the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a hammer crusher bearing seat anti-loosening device with adaptive limiting function, based on the current state of the technology.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a hammer crusher bearing seat anti-loosening device, including a crusher housing, two support seats are respectively installed on the two side walls of the crusher housing at the end of the crusher main shaft, a bearing limiting seat is installed at the top of the support seat, a limiting groove is opened in the bearing limiting seat, a bearing seat is installed in the limiting groove, the part of the two side walls of the support seat that fits with the limiting groove is an inclined structure, a locking bolt is installed between the bearing seat and the bearing limiting seat, and a locking nut is installed at the top of the locking bolt.

[0008] Furthermore, the support base is welded to the crusher housing, and the top of the support base has a horizontal structure.

[0009] Furthermore, the bearing limiting seat and the support seat are connected by countersunk bolts and external nuts.

[0010] Furthermore, the sidewall of the limiting groove that mates with the bearing seat is a sloping structure, and a 2-3mm gap is reserved between the bottom end of the bearing seat and the bottom end of the limiting groove.

[0011] Furthermore, the locking bolt passes through the support base, the bearing limiting seat, and the bearing seat, and the free end of the locking bolt is threadedly connected to a locking nut.

[0012] Furthermore, the locking nut consists of two nuts with built-in anti-loosening washers.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This invention adds a bearing limiting seat between the bearing housing and the support housing, and opens a beveled limiting groove on the inner side of the bearing limiting seat. At the same time, a bevel is reserved on the bearing housing at the part that mates with the limiting groove. After the bearing housing is installed in the bearing limiting seat under the action of the locking bolt and the locking nut, it can effectively reduce the force exerted on the bearing housing by the alternating load generated by the rotation of the main shaft of the hammer crusher. This effectively avoids the risk of the bearing housing loosening under the action of the alternating load applied by the main shaft of the hammer crusher, making the main shaft of the hammer crusher more stable and preventing equipment damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the anti-loosening device for the bearing seat of a hammer crusher according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the anti-loosening device for a hammer crusher bearing seat described in this utility model under stress gap conditions.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Crusher housing; 2. Bearing housing; 3. Bearing limit seat; 4. Support seat; 5. Locking bolt; 6. Locking nut; 7. Limit groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] like Figures 1-2As shown in this embodiment, a hammer crusher bearing seat anti-loosening device includes a crusher housing 1. Two support seats 4 are respectively installed on the two side walls of the crusher housing 1 at the end of the crusher main shaft. A bearing limiting seat 3 is installed on the top of the support seat 4. A limiting groove 7 is formed in the bearing limiting seat 3, and a bearing seat 2 is installed in the limiting groove 7. The limiting groove 7 can stably limit the bearing seat 2 and prevent the bearing seat 2 from loosening when subjected to alternating loads. The part of the two side walls of the support seat 4 that fits with the limiting groove 7 is a beveled structure. A locking bolt 5 is installed between the bearing seat 2 and the bearing limiting seat 3. The bearing housing 2 is equipped with a locking nut 6. The anti-loosening principle of the bearing housing 2 is as follows: The bearing housing 2 and the bearing limiting seat 3 are machined at angles α on both sides. The bearing housing 2 fits into the bearing limiting seat 3. Through the inclined surface contact, the locking bolt 5 and the locking engagement apply a downward force F to the bearing housing 2, so that the inclined surface of the bearing housing 2 is in close contact with the inclined surface of the bearing limiting seat 3. Through force analysis, it is found that the inclined surface of the bearing limiting seat 3 has a reaction force f on the bearing housing 2. Through force decomposition, the horizontal component force fl and the vertical upward component force fv are obtained. The horizontal components in the left and right directions cancel each other out, leaving only the downward force F applied by the locking bolt 5 and the vertical upward component force fv. As long as the force F applied by the locking bolt 5 is greater than or equal to fv, the bearing housing 2 will not loosen.

[0022] like Figures 1-2 As shown, in this embodiment, the support base 4 is welded to the crusher housing 1. The top of the support base 4 is a horizontal structure. The support base 4 is mainly used to provide an installation base for the bearing limit seat 3. The bearing limit seat 3 and the support base 4 are connected by countersunk bolts and external nuts. The side wall of the limit groove 7 that mates with the bearing seat 2 is a sloping structure. A gap of 2-3mm is reserved between the bottom end of the bearing seat 2 and the bottom end of the limit groove 7. The reserved gap can avoid interference between the bearing seat 2 and the bearing limit seat 3 during installation.

[0023] like Figures 1-2 As shown, in this embodiment, the locking bolt 5 passes through the support seat 4, the bearing limit seat 3, and the bearing seat 2. The free end of the locking bolt 5 is connected to the locking nut 6 by a thread. The locking bolt 5 and the locking nut 6 cooperate to realize the reliable installation and fixation of the bearing seat 2 on the bearing limit seat 3. The locking nut 6 is composed of two nuts with anti-loosening washers. The locking nut 6 with a double nut structure has better anti-loosening performance.

[0024] The specific implementation process of this embodiment is as follows: In use, firstly, the bearing limiting seat 3 is installed on the support seat 4, and then the bearing seat 2 is placed in the limiting groove 7 in the bearing limiting seat 3. Then, the bearing seat 2 is reliably fixed on the bearing limiting seat 3 by the action of the locking bolt 5 and the locking nut 6, and the bearing seat 2 can be put into use. During the use of the bearing seat 2, the cooperation between the limiting groove 7 on the bearing limiting seat 3 and the inclined surface on the bearing seat 2 can effectively reduce the force exerted on the bearing seat 2 by the alternating load generated by the rotation of the main shaft of the hammer crusher. This effectively avoids the risk of the bearing seat 2 loosening under the action of the alternating load applied by the main shaft of the hammer crusher, making the use stability of the main shaft of the hammer crusher better and preventing equipment damage.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily 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 is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hammer crusher bearing seat anti-loosening device, characterized in that: The system includes a crusher housing (1), on which two support seats (4) are installed on the two side walls at the ends of the crusher main shaft. A bearing limit seat (3) is installed at the top of the support seat (4). A limit groove (7) is opened in the bearing limit seat (3). A bearing seat (2) is installed in the limit groove (7). The part of the two side walls of the support seat (4) that fits with the limit groove (7) is a sloping structure. A locking bolt (5) is installed between the bearing seat (2) and the bearing limit seat (3). A locking nut (6) is installed at the top of the locking bolt (5).

2. The anti-loosening device for a hammer crusher bearing seat according to claim 1, characterized in that: The support base (4) is welded to the crusher housing (1), and the top of the support base (4) is a horizontal structure.

3. The anti-loosening device for a hammer crusher bearing seat according to claim 2, characterized in that: The bearing limiting seat (3) and the support seat (4) are connected by countersunk bolts and external nuts.

4. The anti-loosening device for a hammer crusher bearing seat according to claim 1, characterized in that: The side wall of the limiting groove (7) that mates with the bearing seat (2) is a sloping structure, and a 2-3mm gap is reserved between the bottom end of the bearing seat (2) and the bottom end of the limiting groove (7).

5. The anti-loosening device for a hammer crusher bearing seat according to claim 1, characterized in that: The locking bolt (5) passes through the support seat (4), the bearing limit seat (3) and the bearing seat (2), and the free end of the locking bolt (5) is connected to the locking nut (6) by thread.

6. The anti-loosening device for a hammer crusher bearing seat according to claim 5, characterized in that: The locking nut (6) consists of two nuts with built-in anti-loosening washers.

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