Bearing particle structure, bearing and cross-flow fan

Abstract

The utility model belongs to the field of bearing structures, and particularly discloses a bearing particle structure, a bearing and a cross-flow fan, the bearing particle structure comprises a bearing particle body, a through hole is formed in the middle of the bearing particle body along the axial direction of the bearing particle body, and an annular groove is formed in the middle of the inner wall of the through hole; the thickness of the annular groove is smaller than or equal to one third of that of the bearing particle body. By adopting the scheme of the utility model, the problems that the oil grooves are formed along the axial direction of the bearing particle and at the positions of the two ends of the bearing particle, the strength is easily influenced, and particularly when the fan shaft is inclined during installation, the fan shaft is easily clamped at the two ends of the oil grooves or extrudes the two ends of the oil grooves, and the service life is influenced can be solved. And the problems of collision or friction abnormal sound caused by position deformation of two ends of the bearing particle are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing structure field, concretely relates to bearing particle structure, bearing and cross flow fan. BACKGROUND

[0002] The cross flow fan is small in size, compact in structure and low in noise, and the generated airflow has the characteristics of large flow and uniform transverse, and is often used in air conditioners, purifiers, dehumidifiers, humidifiers and other equipment. When the cross flow fan is installed, the fan shaft on one side is connected with the motor, and the fan shaft on the other side needs to be supported in the corresponding position, which requires the use of a support bearing. The support bearing includes a support body installed on the equipment and a bearing particle installed in the support body. The bearing particle is sleeved on the fan shaft, and the fan shaft can rotate relative to the bearing particle. Therefore, an oil groove for storing lubricating oil is formed in the inner side of the bearing particle to facilitate lubrication and make the rotation of the fan shaft smoother.

[0003] As shown in the prior art, Figure 1 The oil groove 1 is formed along the axial direction of the bearing particle and has a plurality of circumferential directions. Since the bearing particle is small in size, the formation of the oil groove 1 at both ends of the bearing particle easily affects the strength. Especially when the installation of the fan shaft is inclined, the fan shaft is easily clamped or extruded at both ends of the oil groove 1, which is more likely to cause deformation of the position of both ends of the bearing particle and further produce impact or friction noise. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a bearing particle structure, a bearing and a cross flow fan to solve the problem that the formation of the oil groove along the axial direction of the bearing particle easily affects the strength at both ends of the bearing particle. Especially when the installation of the fan shaft is inclined, the fan shaft is easily clamped or extruded at both ends of the oil groove, which is more likely to cause deformation of the position of both ends of the bearing particle and further produce impact or friction noise.

[0005] According to the embodiments of the utility model, the following technical solutions are adopted:

[0006] The bearing particle structure includes a bearing particle body, a through hole is formed in the middle of the bearing particle body along the axial direction thereof, and an annular groove is formed in the middle of the inner wall of the through hole. The thickness of the annular groove is less than or equal to one third of the thickness of the bearing particle body.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] In this design, an annular groove is created in the middle of the bearing housing to meet the requirements for storing lubricating oil. Furthermore, the thickness of the annular groove is designed to ensure that the fan shaft of the cross-flow fan experiences uniform force at both ends of the bearing housing, preventing it from getting stuck at either end or deforming due to compression. Additionally, the fan shaft of the cross-flow fan will not encounter jamming in the circumferential direction of the bearing housing, which also increases the smoothness of the cross-flow fan's rotation and reduces noise.

[0009] Furthermore, the bearing housing includes a bearing body and a bearing cap assembled together.

[0010] Furthermore, a through hole is formed in the middle of the bearing body and the bearing cover. The end face of the bearing body is provided with an annular groove, and the inner side of the bearing body is provided with a notch that communicates with the groove. The notch is also annular. The bearing cover includes an annular insert plate that is inserted into the groove. The cross-section of the insert plate is L-shaped, and the recess and the notch of the insert plate cooperate to form an annular groove.

[0011] Furthermore, the bearing body end face is provided with an annular groove, and the bearing cover also includes a retaining ring fixed to the end of the insert plate, the retaining ring being used to engage with the groove.

[0012] Furthermore, the retaining ring and retaining groove are interference-fitted.

[0013] Furthermore, a number of first reinforcing ribs are provided in the groove along its circumference, and the two ends of the first reinforcing ribs are respectively connected to the two side walls of the groove.

[0014] Furthermore, the outer wall of the insert plate is provided with several second reinforcing ribs along its circumference, and the ends of the second reinforcing ribs abut against the side wall of the groove.

[0015] Furthermore, the first and second reinforcing ribs are arranged alternately.

[0016] According to embodiments of this utility model, the following technical solutions are also adopted:

[0017] The bearing includes a support body and a bearing granule structure, wherein the support body has a groove in the middle for the bearing granule body to be embedded.

[0018] Crossflow fan, including bearings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the oil tank in the background art of this utility model.

[0020] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0021] Figure 3 This is a structural schematic diagram of another design embodiment of the present utility model.

[0022] Figure 4 Another design way of the embodiment of the utility model is shown in the structural schematic diagram.

[0023] In the drawing: 1, oil groove; 2, bearing particle body; 3, through hole; 4, annular groove; 5, snap ring; 6, plug plate; 7, clamping groove; 8, recess; 9, notch; 10, bearing body; 11, bearing cover; 12, second reinforcing rib; 13, first reinforcing rib. DETAILED DESCRIPTION

[0024] The utility model is further explained in detail below in combination with the drawing of the specification and specific implementation mode is given.

[0025] As Figure 2 shown, the bearing particle structure includes bearing particle body 2, the middle part of bearing particle body 2 is provided with the through hole 3 along its axial direction, and the inner wall of through hole 3 is provided with annular groove 4 in the middle, the thickness of annular groove 4 is less than or equal to one third of the thickness of bearing particle body 2, specifically, in order to guarantee the support performance of bearing particle body 2 to the fan shaft of cross-flow fan, the thickness of bearing particle body 2 on both sides of annular groove 4 is not less than 1mm, in the actual design process, because the size of bearing particle body 2 is small, the thickness of bearing particle body 2 is about 3mm-1cm, therefore when the thickness of bearing particle body 2 is small, the thickness of bearing particle body 2 on both sides of annular groove 4 also needs to be guaranteed to avoid the insufficient support to the fan shaft.In addition, in the actual design process, bearing particle body 2 is spherical, and a plane is cut out at both ends, therefore annular groove 4 is arranged at the middle part of bearing particle body 2, which is also the position of the maximum wall thickness of bearing particle body 2, reducing the influence of slotting on the strength of bearing particle body 2.

[0026] Bearing particle body 2 can be directly processed and then the annular groove 4 is cut out in the middle part, or can be designed as split assembly, specifically, as Figure 3 shown, bearing particle body 2 includes bearing body 10 and bearing cover 11 assembled together, through hole 3 is arranged in the middle part of bearing body 10 and bearing cover 11, that is, the middle part of bearing body 10 and bearing cover 11 is provided with a passageway, when bearing body 10 and bearing cover 11 are assembled, the passageways on both are communicated to form through hole 3.

[0027] The end face of bearing body 10 is provided with recess 8 in annular shape, the inner side of bearing body 10 is provided with notch 9 communicated with recess 8, notch 9 is also annular, the height of notch 9 is less than the height of recess 8, bearing cover 11 includes plug plate 6 inserted into recess 8 and in annular shape, by designing the height of notch 9 and the height of recess 8, plug plate 6 is limited to a certain extent.The cross section of plug plate 6 is in L shape, the recess of plug plate 6 and notch 9 cooperate to form annular groove 4.

[0028] In another embodiment of the utility model, in order to facilitate the connection of bearing body 10 and bearing cover 11, bearing body 10 end face is provided with the annular clamping groove 7, bearing cover 11 still includes the snap ring 5 of fixed in the end of plugboard 6, the snap ring 5 is used for clamping into clamping groove 7, the snap ring 5 and clamping groove 7 interference fit, after bearing cover 11 is inserted into bearing body 10, when the snap ring 5 moves to clamping groove 7, clamping the snap ring 5 into clamping groove 7, and the bearing body 10 and bearing cover 11 are assembled together through interference fit.

[0029] In another embodiment of the utility model, as shown in Figure 4 In order to reduce the influence of the split design of bearing body 10 structure on strength, and ensure good support for the fan shaft of cross-flow fan, a plurality of first reinforcing ribs 13 are arranged in the groove 8 along the circumferential direction, and the two ends of the first reinforcing ribs 13 are connected with the two side walls of the groove 8, respectively. When the plugboard 6 is inserted into the groove 8, the lower end of the plugboard 6 abuts against the first reinforcing rib 13, and a plurality of second reinforcing ribs 12 are arranged on the outer wall of the plugboard 6 along the circumferential direction, and the side surface of the second reinforcing rib 12 abuts against the side wall of the groove 8 when the plugboard 6 is inserted into the groove 8. In the actual design process, in order to ensure the support strength in multiple directions, the projections of the first reinforcing ribs 13 and the second reinforcing ribs 12 in the vertical direction can be staggered, of course, the projections of the first reinforcing ribs 13 and the second reinforcing ribs 12 in the vertical direction can also be designed to overlap, and the number of the first reinforcing ribs 13 and the second reinforcing ribs 12 can also be designed to be different.

[0030] In another embodiment of the utility model, a bearing is also disclosed, which comprises a support body and the bearing particle structure according to any one of the above embodiments, and a embedding groove is arranged in the middle of the support body for embedding the bearing particle body 2. In actual use, the bearing particle body 2 is sleeved on the fan shaft of the cross-flow fan, and then the bearing particle body 2 is inserted into the embedding groove for installation. The support body and the bearing particle body 2 can be made of rubber or plastic material.

[0031] In another embodiment of the utility model, a cross-flow fan is also disclosed, which comprises the bearing according to the above embodiment.

[0032] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A bearing granule structure, characterized by: The bearing particle body comprises a bearing body and a bearing cover which are assembled together, the through hole is arranged in the middle of the bearing body and the bearing cover, the end surface of the bearing body is provided with an annular groove, and the inner side of the bearing body is provided with a notch which is in communication with the groove and also in the form of an annular ring.

2. The bearing granule structure of claim 1, wherein: The end surface of the bearing body is provided with an annular clamping groove, and the bearing cover further comprises a clamping ring which is fixed to the end of the insert plate and is used for clamping into the clamping groove.

3. The bearing granule structure of claim 2, wherein: The clamping ring and the clamping groove are in interference fit.

4. The bearing granule structure of claim 1, wherein: The groove is provided with a plurality of first reinforcing ribs along the circumferential direction thereof, and the two ends of the first reinforcing ribs are connected with the side walls of the groove respectively.

5. The bearing granule structure of claim 4, wherein: The outer wall of the insert plate is provided with a plurality of second reinforcing ribs along the circumferential direction thereof, and the end of the second reinforcing rib is in abutment with the side wall of the groove.

6. The bearing granule structure of claim 5, wherein: The first reinforcing ribs and the second reinforcing ribs are arranged alternately.

7. Bearing, characterized in that: The bearing particle structure comprises a support body and a bearing particle body, and the middle of the support body is provided with an embedding groove for embedding the bearing particle body.

8. Cross-flow fan, characterized in that: The bearing comprises the bearing as claimed in claim 7.

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