Bearing support

Abstract

The utility model belongs to the technical field of rubber pump transmission, and particularly relates to a bearing support which comprises a cylindrical support body, a circle of extension part radially extends from the outer side of the support body to form a flange part, and a plurality of mounting holes are uniformly distributed in the circumferential direction of the flange part; three circles of mutually parallel grooves are formed in an inner cavity of the support body, and two bearing mounting parts are formed among the three circles of grooves; two circles of protruding parts are arranged on the outer side face of the support body on the left side of the flange part and are the first protruding part and the second protruding part respectively, and a circle of groove part is formed between the first protruding part and the second protruding part. According to the bearing support, the transmission local structure of the MAX rubber pump is optimized, so that the stability of the mechanism is improved, the transmission failure rate of the rubber pump is reduced, the conditions of potential quality hazard and time error caused by long-time maintenance are avoided, and the failure of the part is obviously reduced.

Description

Technical Field

[0001] This utility model belongs to the field of glue pump transmission technology, and specifically relates to a bearing support. Background Technology

[0002] In the MAX glue pump drive currently used in the cigarette factory, two copper sleeves (without axial limit) are installed inside the connecting flange to provide support and reduce friction. During actual use, due to the large contact area between the connecting flange, drive shaft, and copper sleeves, wear frequently affects the concentricity of the drive shaft. After cleaning, residual scale and glue residue can cause them to stick together, increasing the load and causing the motor to trip, affecting glue supply. Sudden insufficient glue supply can lead to poor splicing of the adhesive paper, posing a quality risk and resulting in a high failure rate (6 times per quarter). Furthermore, maintenance and disassembly are extensive, causing significant delays and impacting efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a bearing support that, through structural optimization, achieves a robust structure, increased strength, wear resistance, reduced maintenance probability, and avoids the quality risks caused by insufficient glue supply due to glue supply transmission failure, thereby solving the problems existing in the background art.

[0004] To achieve the above objectives, this application employs the following technical solution:

[0005] A bearing support includes a cylindrical support body, an extension portion extending radially outward from the outer side of the support body to form a flange portion, and a plurality of mounting holes evenly distributed circumferentially on the flange portion.

[0006] Three parallel grooves are provided in the inner cavity of the support body, and two bearing mounting parts are formed between the three grooves.

[0007] Two protrusions are provided on the outer side of the support body on the left side of the flange, namely the first protrusion and the second protrusion, and a groove is formed between the first protrusion and the second protrusion.

[0008] Furthermore, the axial length of the support body on the left side of the flange is less than the axial length of the support body on the right side of the flange.

[0009] Furthermore, the outer diameter of the support body on the left side of the flange is smaller than the outer diameter of the support body on the right side of the flange.

[0010] Furthermore, the right side of the first protrusion is connected to the left side of the flange as a single unit.

[0011] Furthermore, the outer diameters of the first protrusion and the second protrusion are the same, and are larger than the outer diameter of the support body on the right side of the flange.

[0012] Furthermore, the inner diameters at both ends of the inner cavity of the support body are larger than the inner diameters of the rest.

[0013] Furthermore, the inner diameter of the groove is the same as the inner diameter of the two ends of the inner cavity of the support body.

[0014] Furthermore, a needle roller bearing is installed at each bearing mounting part, with the outer ring of the needle roller bearing having an interference fit with the bearing mounting part.

[0015] The beneficial effects of this utility model are:

[0016] The bearing support of this utility model improves the stability of the MAX glue pump transmission by optimizing the local structure of the transmission, reduces the failure rate of the glue pump transmission, avoids potential quality problems and long-term maintenance delays, and reduces the failure rate of this part from 6 times / quarter to 0-2 times / quarter. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the bearing support structure of this utility model.

[0018] Figure 2 This is a front view of the bearing support of this utility model.

[0019] Figure 3 for Figure 2 AA sectional view.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Support body; 2. Flange; 3. Mounting hole; 11. First protrusion; 12. Second protrusion; 13. Groove; 14. Groove; 15. Bearing mounting part. Detailed Implementation

[0022] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of this utility model, and should not be construed as limiting the technical solution of this utility model.

[0023] The terms "left" and "right" mentioned in this embodiment are only used to illustrate the technical solution and do not represent actual positions.

[0024] like Figures 1 to 3 As shown, the bearing support involved in this application is a partial improvement to the connecting flange in the transmission structure of the MAX glue pump currently used in cigarette factories. Because the structure of the MAX glue pump currently used is clear to the technicians of cigarette factories, its transmission flange structure may be different from the connection (coupling) structure of the transmission structure of other types of pumps, and it cannot be used for the connection of the transmission structure of other types of pumps.

[0025] The bearing support in this technical solution is improved by eliminating the use of a copper bushing and instead using two needle roller bearings. Furthermore, this application's technical solution does not involve improvements to the MAX glue pump or its downstream components, but only to the connection structure.

[0026] Specifically, the bearing support includes a cylindrical support body 1. The material of the support body can be the same as or different from that of the currently used connecting flange, without affecting the implementation of the technical solution of this application. A radially extending portion is provided on the outer side of the support body to form a flange portion 2. The axial thickness of the flange portion of this application is the same as the thickness of the currently used connecting flange to ensure that the position between the MAX glue pump and the rear-end device remains unchanged, without the need for corresponding adjustments. It is only necessary to directly replace the currently used connecting flange.

[0027] In this application, multiple mounting holes 3 are evenly distributed around the flange 2. In this embodiment, there are three mounting holes, which correspond one-to-one with the mounting holes of the rear device.

[0028] Three parallel grooves 14 are provided in the inner cavity of the support body 1, and two bearing mounting parts 15 are formed between the three grooves. The grooves of this application can be used to install reverse hole retaining rings to prevent interference with the transmission shaft and to axially position the needle roller bearing. On the other hand, a certain amount of lubricating oil can also be stored in the grooves.

[0029] In this application, two protrusions are provided on the outer side of the support body on the left side of the flange, namely a first protrusion 11 and a second protrusion 12, and a groove 13 is formed between the first protrusion 11 and the second protrusion 12. The right side of the first protrusion is connected to the left side of the flange as an integral structure.

[0030] In this application, the axial length of the support body on the left side of the flange is less than the axial length of the support body on the right side of the flange. The outer diameter of the support body on the left side of the flange is less than the outer diameter of the support body on the right side of the flange.

[0031] In this application, the outer diameters of the first protrusion and the second protrusion are the same, and are larger than the outer diameter of the support body on the right side of the flange.

[0032] In this application, the inner diameters at both ends of the inner cavity of the support body are larger than the inner diameters of the rest. The inner diameter of the groove is the same as the inner diameters at both ends of the inner cavity of the support body.

[0033] In this application, a needle roller bearing is installed at each bearing mounting part, and the outer ring of the needle roller bearing is interference-fitted with the bearing mounting part.

[0034] Working principle:

[0035] Two mating needle roller bearings are first installed in the bearing mounting part inside the support body. If necessary, before installing the needle roller bearings, a reverse hole retaining ring is installed in the middle groove. The reverse hole retaining ring is existing technology and can be obtained commercially. In other embodiments of this application, the reverse hole retaining ring may not be placed in the middle groove, but is used to store lubricating oil. After the needle roller bearings are installed, a reverse hole retaining ring is installed in each of the two outer grooves, thus completing the assembly of the bearing support.

[0036] Then, replace the existing connecting flange with the bearing support of the needle roller bearing of this application according to the existing connecting flange installation method, and tighten the bolts by inserting bolts into the mounting holes to complete the assembly of the bearing support of this application.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bearing support, characterized in that, It includes a cylindrical support body, with an extension extending radially around the outside of the support body to form a flange, and multiple mounting holes evenly distributed circumferentially on the flange. Three parallel grooves are provided in the inner cavity of the support body, and two bearing mounting parts are formed between the three grooves. Two protrusions are provided on the outer side of the support body on the left side of the flange, namely the first protrusion and the second protrusion, and a groove is formed between the first protrusion and the second protrusion.

2. The bearing support according to claim 1, characterized in that, The axial length of the support body on the left side of the flange is less than the axial length of the support body on the right side of the flange.

3. The bearing support according to claim 1, characterized in that, The outer diameter of the support body on the left side of the flange is smaller than the outer diameter of the support body on the right side of the flange.

4. The bearing support according to claim 3, characterized in that, The right side of the first protrusion is connected to the left side of the flange as a single structure.

5. The bearing support according to claim 3, characterized in that, The outer diameters of the first protrusion and the second protrusion are the same, and are larger than the outer diameter of the support body on the right side of the flange.

6. The bearing support according to claim 1, characterized in that, The inner diameters at both ends of the inner cavity of the support body are larger than the inner diameters of the rest.

7. The bearing support according to claim 6, characterized in that, The inner diameter of the groove is the same as the inner diameter of the two ends of the inner cavity of the support body.

8. The bearing support according to claim 1, characterized in that, A needle roller bearing is installed at each bearing mounting part, and the outer ring of the needle roller bearing is interference-fitted with the bearing mounting part.

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