Bearing seat anti-loosening structure

Abstract

The utility model discloses an anti-loosening structure of a bearing seat, which relates to the technical field of anti-loosening of bearing seats and comprises a mounting bolt and an anti-loosening pad, the mounting bolt is used for connecting a flange plate of the bearing seat and a rear end cover of an outer cylinder, and the anti-loosening pad is clamped between the head of the mounting bolt and the flange plate of the bearing seat. The rod part of the mounting bolt penetrates through a through hole in the anti-loosening pad, a limiting long hole is formed in the anti-loosening pad and is formed in the side part of the mounting bolt, a limiting piece is arranged in the limiting long hole, and the limiting piece is connected with a flange plate of the bearing seat. The anti-loosening device can improve the anti-loosening effect.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing anti-loosening technology, specifically to a bearing housing anti-loosening structure. Background Technology

[0002] In the washer / extractor, see Figure 1 and Figure 2 The flange 11 of the bearing housing 1 is connected to the rear end cover 31 of the outer cylinder 3 by mounting bolts 2. The main shaft 4 inside the bearing housing 1 drives the inner cylinder located inside the outer cylinder 3 to rotate, so that the outer cylinder 3 does not rotate while the inner cylinder rotates, thus realizing the washing and dehydration functions.

[0003] During operation, the inner cylinder and the main shaft 4 rotate back and forth together, causing the mounting bolts 2 on the flange 11 to loosen due to frequent vibration, which reduces the installation reliability of the bearing housing 1.

[0004] For this, see Figure 3 Currently, a circular anti-loosening pad 5 is used. The mounting bolt 2 passes through the through hole in the middle of the anti-loosening pad 5, so that the anti-loosening pad 5 is sandwiched between the head of the mounting bolt 2 and the flange 11 of the bearing seat 1. One side of the anti-loosening pad 5 is raised to form a stop part 51. The stop part 51 and the head of the mounting bolt 2 make face-to-face contact. The goal is to use the resistance of the stop part 51 to prevent the mounting bolt 2 from loosening.

[0005] However, the resistance between the stop part 51 and the head of the mounting bolt 2 is mutual. During the process of the mounting bolt 2 rotating and loosening, there is a situation where the head of the mounting bolt 2 pushes the stop part 51 and causes the anti-loosening pad 5 to rotate and loosen together, so the anti-loosening effect needs to be further improved. Utility Model Content

[0006] To address the aforementioned shortcomings of existing technologies, this invention proposes a bearing housing anti-loosening structure, which improves the anti-loosening effect.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A bearing housing anti-loosening structure includes mounting bolts and anti-loosening gaskets. The mounting bolts are used to connect the flange of the bearing housing and the rear end cover of the outer cylinder. The anti-loosening gasket is sandwiched between the head of the mounting bolt and the flange of the bearing housing. The shank of the mounting bolt passes through a through hole in the anti-loosening gasket. The anti-loosening gasket is provided with a limiting elongated hole, which is located on the side of the mounting bolt. A limiting element is provided in the limiting elongated hole, and the limiting element is connected to the flange of the bearing housing.

[0009] Furthermore, the limiting elongated hole is an arc-shaped elongated hole, with the concave side of the arc-shaped elongated hole facing the mounting bolt.

[0010] Furthermore, the limiting member is detachably connected to the flange of the bearing housing.

[0011] Furthermore, the limiting component is a limiting bolt, which is threadedly connected to the flange of the bearing housing.

[0012] Furthermore, a spring washer is provided between the anti-loosening gasket and the flange of the bearing housing.

[0013] Furthermore, the anti-loosening pad is made of stainless steel.

[0014] The beneficial effects of this utility model are:

[0015] 1. When the mounting bolts cause the anti-loosening washer to rotate and loosen, a limiting elongated hole is provided on the anti-loosening washer, and a limiting element is installed in the limiting elongated hole. The limiting element is connected to the flange of the bearing housing. The cooperation between the limiting element and the limiting elongated hole can limit the swing range of the anti-loosening washer, so that the anti-loosening washer can drive the mounting bolts to stop rotating and loosening. This is beneficial to improving the anti-loosening effect of the mounting bolts, thereby improving the installation reliability of the bearing housing.

[0016] 2. By making the limiting component detachably connected to the flange of the bearing housing, the limiting component can be easily disassembled and replaced, facilitating maintenance.

[0017] 3. By using limit bolts as limit components, and connecting the limit bolts to the flange of the bearing housing with threads, materials can be readily sourced, the structure can be simplified, and maintenance can be made easier.

[0018] 4. By using an arc-shaped elongated hole as a limiting elongated hole, it can adapt to the arc-shaped swing trajectory of the anti-loosening pad, making the structure of the limiting elongated hole more precise.

[0019] 5. Because spring washers are elastic, they can absorb and disperse vibrations, which helps to further improve the anti-loosening effect. Attached Figure Description

[0020] Figure 1 It is a three-dimensional background technology Figure 1 ;

[0021] Figure 2 It is a three-dimensional background technology Figure 2 ;

[0022] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 It is a three-dimensional anti-loosening structure for bearing housings Figure 1 ;

[0024] Figure 5 It is a three-dimensional anti-loosening structure for bearing housings Figure 2;

[0025] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0026] Figure 7 This is the front view of the bearing housing anti-loosening structure;

[0027] Figure 8 yes Figure 7 A magnified view of a section at point C.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Bearing housing, 11-Flange,

[0030] 2- Mounting bolts,

[0031] 3-outer cylinder, 31-rear end cover,

[0032] 4-Spindle,

[0033] 5-Anti-loosening pad, 51-Stop part, 52-Limiting elongated hole,

[0034] 6-Limit bolt. Detailed Implementation

[0035] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Example:

[0037] See Figures 4 to 8 The bearing housing anti-loosening structure includes mounting bolt 2 and anti-loosening washer 5.

[0038] The flange 11 of the bearing housing 1 has multiple mounting holes evenly distributed around the circumference. The mounting bolts 2 pass through the mounting holes and are threaded onto the rear end cover 31 of the outer cylinder 3, thereby assembling the bearing housing 1 and the outer cylinder 3.

[0039] The anti-loosening pad 5 is provided with a through hole and a limiting elongated hole 52. The anti-loosening pad 5 can be made of stainless steel.

[0040] The shank of the mounting bolt 2 passes through the through hole of the anti-loosening washer 5 and the mounting hole of the flange 11 in sequence, and is then threaded onto the rear end cover 31 of the outer cylinder 3, thereby assembling the bearing seat 1 and the outer cylinder 3. At this time, the anti-loosening washer 5 is sandwiched between the head of the mounting bolt 2 and the flange 11 of the bearing seat 1.

[0041] A limiting elongated hole 52 is provided on the side of the mounting bolt 2, and a limiting element is provided inside the limiting elongated hole 52. The limiting element is connected to the flange 11 of the bearing housing 1. To facilitate the installation and removal of the limiting element, the limiting element is detachably connected to the flange 11 of the bearing housing 1. This embodiment provides a specific structure for the detachable connection between the limiting element and the flange 11: the limiting element is a limiting bolt 6, and the limiting bolt 6 is threadedly connected to the flange 11 of the bearing housing 1.

[0042] The working principle of the bearing housing anti-loosening structure in this embodiment is as follows:

[0043] During the operation of the washer-extractor, the inner drum and the main shaft 4 rotate back and forth, causing the mounting bolts 2 on the flange 11 to loosen due to frequent vibration.

[0044] See Figure 8 When the mounting bolt 2 is loosened by rotating clockwise, the mounting bolt 2 will also cause the anti-loosening washer 5 to rotate clockwise. The upper wall of the limiting elongated hole 52 on the anti-loosening washer 5 will abut against the limiting component. The limiting component will prevent the anti-loosening washer 5 from continuing to rotate clockwise. The anti-loosening washer 5 will cause the mounting bolt 2 to stop rotating clockwise, thereby stopping the loosening of the mounting bolt 2.

[0045] See Figure 8 When the mounting bolt 2 is loosened by rotating counterclockwise, the mounting bolt 2 will also cause the anti-loosening washer 5 to rotate counterclockwise. The lower wall of the limiting elongated hole 52 on the anti-loosening washer 5 will abut against the limiting component. The limiting component will prevent the anti-loosening washer 5 from continuing to rotate counterclockwise. The anti-loosening washer 5 will cause the mounting bolt 2 to stop rotating counterclockwise, thereby stopping the loosening of the mounting bolt 2.

[0046] Based on the above working principle, it can be seen that this embodiment has the following effects:

[0047] When the mounting bolt 2 causes the anti-loosening washer 5 to rotate and loosen, a limiting elongated hole 52 is provided on the anti-loosening washer 5, and a limiting element is provided in the limiting elongated hole 52. The limiting element is connected to the flange 11 of the bearing housing 1. The swing range of the anti-loosening washer 5 can be limited by the cooperation between the limiting element and the limiting elongated hole 52, so that the anti-loosening washer 5 can drive the mounting bolt 2 to stop rotating and loosening. This is beneficial to improving the anti-loosening effect of the mounting bolt 2, thereby improving the installation reliability of the bearing housing 1.

[0048] Furthermore, when the mounting bolt 2 causes the anti-loosening pad 5 to rotate and loosen, the loosening trajectory of the anti-loosening pad 5 is an arc-shaped movement trajectory with the mounting bolt 2 as the center. The relative displacement between the limiting elongated hole 52 on the anti-loosening pad 5 and the limiting member is also arc-shaped. In order to make the limiting elongated hole 52 adapt to the arc-shaped trajectory, in this embodiment, the limiting elongated hole 52 adopts an arc-shaped elongated hole, and the concave side of the arc-shaped elongated hole faces the mounting bolt 2.

[0049] Furthermore, a spring washer is provided between the anti-loosening gasket 5 and the flange 11 of the bearing housing 1. The shank of the mounting bolt 2 passes through the through hole of the anti-loosening gasket 5, the spring washer, and the mounting hole of the flange 11 in sequence, and is then threaded onto the rear end cover 31 of the outer cylinder 3, so that the bearing housing 1 and the outer cylinder 3 are assembled together. Because the spring washer is elastic, it can absorb and disperse vibration, which helps to further improve the anti-loosening effect.

[0050] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A bearing housing anti-loosening structure, comprising mounting bolts and anti-loosening washers, wherein the mounting bolts are used to connect the flange of the bearing housing and the rear end cover of the outer cylinder, the anti-loosening washers are sandwiched between the head of the mounting bolts and the flange of the bearing housing, and the shank of the mounting bolts passes through a through hole in the anti-loosening washers, characterized in that, The anti-loosening pad is provided with a limiting elongated hole, which is located on the side of the mounting bolt. A limiting element is provided in the limiting elongated hole, and the limiting element is connected to the flange of the bearing seat.

2. The bearing housing anti-loosening structure according to claim 1, characterized in that, The limiting elongated hole is an arc-shaped elongated hole, with the concave side of the arc-shaped elongated hole facing the mounting bolt.

3. The bearing housing anti-loosening structure according to claim 1, characterized in that, The limiting member is detachably connected to the flange of the bearing housing.

4. The bearing housing anti-loosening structure according to claim 3, characterized in that, The limiting component is a limiting bolt, which is threadedly connected to the flange of the bearing housing.

5. The bearing housing anti-loosening structure according to claim 1, characterized in that, A spring washer is provided between the anti-loosening gasket and the flange of the bearing housing.

6. The bearing housing anti-loosening structure according to claim 1, characterized in that, The anti-loosening pad is made of stainless steel.

Images