Banbury mixer bearing rotation stopping device

Abstract

The utility model belongs to the technical field of bearing rotation stopping devices, and particularly relates to an internal mixer bearing rotation stopping device which comprises a side support and a rotor, a bearing chamber is fixedly connected in the side support, a deep groove ball bearing is fixedly connected in the bearing chamber, and the rotor is fixedly connected with an inner ring of the deep groove ball bearing through interference fit. A positioning pin is connected into the bearing chamber through threads, the tail end of the positioning pin is connected with the outer ring wall of the deep groove ball bearing in an inserted mode, the upper section of a shaft body of the positioning pin is connected with a non-standard nut through threads, and the non-standard nut abuts against the bearing chamber. According to the utility model, a group of positioning pins are additionally arranged on the basis of mounting and fixing the original deep groove ball bearing, the positioning pins can be mounted from the upper part of the bearing chamber of the side bracket, and the tail ends of the positioning pins are inserted into the outer ring wall of the deep groove ball bearing, so that the effect of preventing the outer ring of the bearing from rotating is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing anti-rotation devices, specifically an anti-rotation device for internal mixer bearings. Background Technology

[0002] An internal mixer is a piece of equipment used in the rubber industry for rubber mixing. It uses a pair of relatively rotating rotors to squeeze, shear, and stir materials in a closed plasticizing chamber, thereby increasing the temperature and decreasing the viscosity of the materials to achieve the purpose of plasticizing or mixing.

[0003] The rotor is equipped with a pair of self-aligning roller bearings at both ends. These bearings are installed in the bearing housing. During the operation of the internal mixer, due to the rotation of the rotor, its edges generate a large axial force on the rubber material. At the same time, the rotor also bears the reverse force of this part. This part of the force is applied to the bearings at both ends of the rotor.

[0004] Taking the water outlet as an example, the outer ring of the bearing is typically secured by a gland and adjusting shims. When the inner ring bears the reverse force, it generates significant impact and vibration. This installation method inevitably causes the outer ring to rotate, leading to friction with the bearing housing. Since the bearing housing is cast from gray iron, repairing friction damage is difficult and expensive, increasing the complexity of future equipment overhauls and maintenance. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide an anti-rotation device for the bearings of a mixer, which solves the problem of loose friction between the bearing used to install the rotor and the bearing housing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bearing anti-rotation device for an internal mixer, comprising a side support and a rotor. A bearing chamber is fixedly connected inside the side support, and a deep groove ball bearing is fixedly connected inside the bearing chamber. The rotor is fixedly connected to the inner ring of the deep groove ball bearing via an interference fit. A locating pin is threadedly connected inside the bearing chamber, and the end of the locating pin is inserted into the outer ring wall of the deep groove ball bearing. A non-standard nut is threadedly connected to the upper section of the locating pin shaft, and the non-standard nut abuts against the bearing chamber.

[0007] Preferably, the non-standard nut has a slider internally slidably connected, and a tapered pin is fixedly connected to the bottom of the slider. The tapered pin passes through the non-standard nut and is slidably connected to it. The tapered portion of the tapered pin engages with the bearing housing. A spring is provided inside the non-standard nut; one end of the spring is fixedly connected to the slider, and the other end is fixedly connected to the inner surface of the non-standard nut. Under the elastic force of the spring, the tapered pin at the bottom of the slider can be engaged with the bearing housing. Furthermore, a ring of grooves is provided on the bearing housing for the engagement of the tapered pin. This locks the non-standard nut, preventing it from loosening, thereby ensuring the stable anti-rotation of the locating pin and the deep groove ball bearing.

[0008] Preferably, the slider has ball bearings on its side, and these ball bearings are slidably connected to the inner surface of the non-standard nut. The ball bearings reduce the relative friction between the slider and the non-standard nut.

[0009] Preferably, the non-standard nut has a sponge block and an inclined block slidably connected internally, with the sponge block and the inclined block in planar contact. A second spring is installed inside the non-standard nut. A groove is formed at the top of the non-standard nut, and a pressure block is slidably connected to the inner side of the groove. A sliding pin is fixedly connected to the bottom of the pressure block. The sliding pin passes through the non-standard nut and is slidably connected to it. The arc end of the sliding pin abuts against the inclined surface of the inclined block. An oil outlet hole is formed inside the non-standard nut, and the position of the oil outlet hole corresponds to the positions of the sponge block and the positioning pin. By pushing the sliding pin with the pressure block, the sliding pin engages with the inclined surface of the inclined block, causing the inclined block to move laterally and compressing the sponge block, thereby releasing the lubricating oil stored inside the sponge block.

[0010] Preferably, a limiting ring is fixedly connected to the pin body of the sliding pin, and the limiting ring contacts the inner surface of the non-standard nut. The limiting ring provides anti-disengagement protection for the sliding pin and the pressure block.

[0011] Preferably, one end of the second spring is fixedly connected to the inclined block, and the other end of the second spring is fixedly connected to the inner surface of the non-standard nut. The second spring provides auxiliary repositioning for the inclined block.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model adds a set of positioning pins to the original deep groove ball bearing installation and fixing. The positioning pins can be installed from the top of the bearing chamber of the side bracket and the end is inserted into the outer ring wall of the deep groove ball bearing, thereby preventing the outer ring of the bearing from rotating.

[0014] 2. This utility model uses a non-standard nut on the positioning pin to lock and fix it after installation. In addition, a slider, tapered pin and spring are set inside the non-standard nut. The tapered pin will be locked into the corresponding position of the bearing chamber under the action of the spring to prevent it from loosening, thereby ensuring the stable anti-rotation of the positioning pin and the deep groove ball bearing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A magnified view of the local structure;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A.

[0018] In the diagram: 1. Locating pin; 2. Deep groove ball bearing; 3. Side bracket; 31. Bearing housing; 4. Rotor; 5. Non-standard nut; 6. Slider; 7. Tapered pin; 8. Spring 1; 9. Ball bearing; 10. Inclined block; 11. Sponge block; 12. Spring 2; 13. Pressure block; 14. Sliding pin; 15. Oil outlet; 16. Limiting ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2 The internal mixer bearing anti-rotation device includes a side support 3 and a rotor 4. A bearing chamber 31 is fixedly connected inside the side support 3. A deep groove ball bearing 2 is fixedly connected inside the bearing chamber 31. The rotor 4 is fixedly connected to the inner ring of the deep groove ball bearing 2 by an interference fit. A locating pin 1 is threadedly connected inside the bearing chamber 31. The end of the locating pin 1 is inserted into the outer ring wall of the deep groove ball bearing 2. A non-standard nut 5 is threadedly connected to the upper section of the locating pin 1 shaft, and the non-standard nut 5 abuts against the bearing chamber 31.

[0021] Please see Figure 2-3The non-standard nut 5 has a slider 6 internally connected to it. A tapered pin 7 is fixedly connected to the bottom of the slider 6, passing through and slidingly connecting with the non-standard nut 5. The tapered part of the tapered pin 7 engages with the bearing chamber 31. A spring 8 is installed inside the non-standard nut 5. One end of the spring 8 is fixedly connected to the slider 6, and the other end is fixedly connected to the inner surface of the non-standard nut 5. Under the elastic force of the spring 8, the tapered pin 7 at the bottom of the slider 6 can be engaged with the bearing chamber 31. The bearing chamber 31 has a ring of grooves arranged in annular array for engaging the tapered pin 7, thus locking the non-standard nut 5 and preventing it from loosening, thereby ensuring the stable anti-rotation of the locating pin 1 and the deep groove ball bearing 2. Ball bearings 9 are provided on the side of the slider 6, slidingly connecting with the inner surface of the non-standard nut 5. The ball bearings 9 reduce the relative friction between the slider 6 and the non-standard nut 5.

[0022] Please see Figure 3 The non-standard nut 5 has a sponge block 11 and a beveled block 10 slidably connected inside. The sponge block 11 and the beveled block 10 are in planar contact. A second spring 12 is installed inside the non-standard nut 5. One end of the second spring 12 is fixedly connected to the beveled block 10, and the other end of the second spring 12 is fixedly connected to the inner surface of the non-standard nut 5. The second spring 12 has an auxiliary resetting function for the beveled block 10. The top of the non-standard nut 5 has a groove, and a pressure block 13 is slidably connected to the inner side of the groove. A sliding pin 14 is fixedly connected to the bottom of the pressure block 13. The sliding pin 14 passes through the non-standard nut 5 and is slidably connected to the non-standard nut 5. The arc end of the sliding pin 14 abuts against the beveled surface of the beveled block 10. An oil outlet hole 15 is installed inside the non-standard nut 5. The position of the oil outlet hole 15 corresponds to the position of the sponge block 11 and the positioning pin 1. The sliding pin 14 is pushed by the pressure block 13, and the sliding pin 14 engages with the inclined surface of the inclined block 10, causing the inclined block 10 to move laterally and compress the sponge block 11, thereby releasing the lubricating oil stored in the sponge block 11. A limit ring 16 is fixedly connected to the pin body of the sliding pin 14, and the limit ring 16 contacts the inner surface of the non-standard nut 5. The limit ring 16 provides anti-disengagement protection for the sliding pin 14 and the pressure block 13.

[0023] The specific implementation process of this utility model is as follows: In use, the inner ring of the deep groove ball bearing 2 is inserted into the rotor 4, and then the deep groove ball bearing 2 together with the rotor 4 is installed in the bearing chamber 31 of the side bracket 3. Pin holes are machined on both the bearing chamber 31 of the side bracket 3 and the deep groove ball bearing 2. The positioning pin 1 passes through the pin hole of the bearing chamber 31 and is inserted into the pin hole on the deep groove ball bearing 2. Then the two are put together to prevent rotation and protect the bearing chamber 31 from wear with the outer ring of the deep groove ball bearing 2. Finally, a non-standard nut 5 is installed at the positioning pin 1 to lock it.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-rotation device for a bearing of an internal mixer, comprising a side support (3) and a rotor (4), characterized in that: The side bracket (3) is fixedly connected to a bearing chamber (31), and a deep groove ball bearing (2) is fixedly connected to the bearing chamber (31). The rotor (4) is fixedly connected to the inner ring of the deep groove ball bearing (2) by interference fit. A positioning pin (1) is threadedly connected inside the bearing chamber (31). The end of the positioning pin (1) is inserted into the outer ring wall of the deep groove ball bearing (2). A non-standard nut (5) is threadedly connected to the upper section of the shaft of the positioning pin (1), and the non-standard nut (5) abuts against the bearing chamber (31).

2. The anti-rotation device for the internal mixer bearing according to claim 1, characterized in that: The non-standard nut (5) has a slider (6) slidably connected inside. The bottom of the slider (6) is fixedly connected to a tapered pin (7). The tapered pin (7) passes through the non-standard nut (5) and is slidably connected to the non-standard nut (5). The tapered part of the tapered pin (7) is engaged with the bearing chamber (31). The non-standard nut (5) has a spring (8) inside. One end of the spring (8) is fixedly connected to the slider (6), and the other end of the spring (8) is fixedly connected to the inner surface of the non-standard nut (5).

3. The anti-rotation device for the internal mixer bearing according to claim 2, characterized in that: The slider (6) is provided with a ball (9) on its side, and the ball (9) is slidably connected to the inner surface of the non-standard nut (5).

4. The anti-rotation device for the internal mixer bearing according to claim 1, characterized in that: The non-standard nut (5) has a sponge block (11) and a bevel block (10) slidably connected inside. The sponge block (11) and the bevel block (10) are in planar contact. The non-standard nut (5) has a spring (12) inside. The top of the non-standard nut (5) has a groove. The inner side of the groove is slidably connected to a pressure block (13). The bottom of the pressure block (13) is fixedly connected to a sliding pin (14). The sliding pin (14) passes through the non-standard nut (5) and is slidably connected to the non-standard nut (5). The arc end of the sliding pin (14) abuts against the beveled surface of the bevel block (10). The non-standard nut (5) has an oil outlet hole (15) inside. The position of the oil outlet hole (15) corresponds to the position of the sponge block (11) and the positioning pin (1).

5. The anti-rotation device for the internal mixer bearing according to claim 4, characterized in that: A limiting ring (16) is fixedly connected to the pin body of the sliding pin (14), and the limiting ring (16) is in contact with the inner surface of the non-standard nut (5).

6. The anti-rotation device for the internal mixer bearing according to claim 4, characterized in that: One end of the second spring (12) is fixedly connected to the inclined block (10), and the other end of the second spring (12) is fixedly connected to the inner surface of the non-standard nut (5).

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