CN218563984U - Air outlet side bearing unit for supporting fan system - Google Patents

Abstract

The utility model belongs to the technical field of large fan system test matching, in particular to a gas outlet side bearing unit for supporting a fan system, which comprises a split cylindrical roller bearing sleeved on a shaft, wherein a bearing seat component is arranged outside the split cylindrical roller bearing, and the bearing seat component provides external support for the split cylindrical roller bearing; the bearing seat assembly comprises a centering seat, wherein an assembly groove for assembling an outer ring of a split cylindrical roller bearing is formed in the inner wall of the centering seat, the split cylindrical roller bearing is axially limited through the assembly groove, end covers sleeved on the outer wall of a shaft are arranged at the two ends of the centering seat, the end covers and the shaft are sealed through sealing assemblies, and the split cylindrical roller bearing is installed in a sealing space formed by the centering seat and the shaft. The large cylindrical roller bearing is adopted for bearing, the radial bearing capacity of the air outlet side of the fan is improved, and the split cylindrical roller bearing is adopted because the air outlet side of the fan needs to be connected with the coupler, so that the split cylindrical roller bearing is convenient to install and meets the assembly requirement of the bearing on the air outlet side.

Description

Air outlet side bearing unit for supporting fan system

Technical Field

The utility model belongs to the technical field of the experimental supporting of big fan system, concretely relates to fan system supports with side bearing unit that gives vent to anger.

Background

Each fan in the fan system consists of a motor and a rotor, wherein the motor and the rotor are connected through an elastic coupling and transmit torque. Through the array arrangement of the fans, aerodynamic force is provided for the system to carry out tests. Because the shaft diameter is bigger, the working condition load is too big, still need to consider the convenience of installation maintenance, because the fan air inlet side will bear radial load to because of the right side is connected by the shaft coupling, the installation is difficult, for guaranteeing the air inlet side bearing assembly requirement, need to design a bearing configuration scheme to support big fan business turn over air side.

Disclosure of Invention

According to the defects existing in the prior art, the utility model aims to provide a fan system support is with side bearing unit of giving vent to anger that bearing capacity is high, simple installation.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an air outlet side bearing unit for supporting a fan system comprises a split type cylindrical roller bearing sleeved on a shaft, wherein a bearing seat assembly is arranged outside the split type cylindrical roller bearing, and the split type cylindrical roller bearing is externally supported by the bearing seat assembly; the bearing seat assembly comprises a centering seat, wherein an assembly groove for assembling an outer ring of a split cylindrical roller bearing is formed in the inner wall of the centering seat, the split cylindrical roller bearing is axially limited through the assembly groove, end covers sleeved on the outer wall of a shaft are arranged at the two ends of the centering seat, the end covers are sealed with the shaft through sealing assemblies, and the split cylindrical roller bearing is installed in a sealing space formed by the centering seat and the shaft.

Further, the split type cylindrical roller bearing comprises an outer ring split into two semicircles, an inner ring split into two semicircles, a plurality of cylindrical rollers arranged between the outer ring and the inner ring, and a retainer split into two semicircles.

Furthermore, flanges are arranged at two ends of the inner ring roller path, annular grooves are respectively arranged on the outer diameter surfaces of the flanges at two sides, positioning snap rings are assembled in the annular grooves, and the two semicircular inner rings are fixed through the positioning snap rings.

Furthermore, the location snap ring includes first snap ring and the second snap ring by bolted connection, and first snap ring and second snap ring are semi-circular structure, and first snap ring and second snap ring enclose to form annular location snap ring, the location snap ring is with the axle center.

Furthermore, the inner diameter surface of the aligning seat is provided with a grease storage groove, the aligning seat is provided with a lubricating channel communicated with the grease storage groove, the outer ring is provided with a through oil groove, and the oil groove is communicated with the grease storage groove.

Further, the bearing seat assembly further comprises a bearing seat top cover and a bearing seat base, the aligning seat is arranged outside the split type cylindrical roller bearing, the inner wall of the aligning seat is matched with the outer ring of the split type cylindrical roller bearing, the aligning seat is supported through the outer bearing seat top cover and the bearing seat base, the aligning seat is arranged in an inner cavity formed by connecting the bearing seat top cover and the bearing seat base, the outer wall of the aligning seat is of a spherical structure, and the inner wall of the bearing seat top cover and the inner wall of the bearing seat base are respectively matched with the outer wall of the aligning seat in a spherical mode.

Furthermore, the outer wall of the aligning seat is a convex spherical surface, and the inner wall of the bearing seat top cover and the inner wall of the bearing seat base are concave spherical surfaces matched with the outer wall of the aligning seat.

Furthermore, the aligning seat comprises an upper aligning seat and a lower aligning seat which are respectively of a semicircular ring structure, and the upper aligning seat and the lower aligning seat are combined to form an annular structure and are matched with the split type cylindrical roller bearing.

Furthermore, the end cover and the aligning seat are of an integrated structure, and the end cover is divided into a semicircular ring structure and is respectively connected with the upper aligning seat and the lower aligning seat.

Furthermore, the sealing assembly is a rubber sealing ring with a steel skeleton, an installation part of the sealing ring is installed in a sealing groove in the inner diameter surface of the end cover, the installation part is axially arranged and is assembled in the sealing groove in an interference mode along the axial direction, a sealing part of the sealing ring is provided with a first lip and a second lip, the first lip is in interference fit with the shaft, the second lip is in clearance fit with the shaft, and the first lip is arranged on the outer side of the second lip; the first lip is of an angular structure, and the angle end of the angular structure is in interference fit with the shaft.

Further, the sealing component is formed by combining an aluminum three-layer ring type seal and a felt seal.

The beneficial effects of the utility model are that: the large cylindrical roller bearing is adopted for bearing, the radial bearing capacity of the air outlet side of the fan is improved, and the split cylindrical roller bearing is adopted for facilitating installation and meeting the assembly requirement of the air outlet side bearing because the air outlet side of the fan needs to be connected with the coupler.

Drawings

FIG. 1 is a sectional view of a part of the structure of a bearing unit on the air outlet side for supporting a fan system according to the present invention;

FIG. 2 is an exploded view of the structure of the air outlet side bearing unit for supporting the fan system of the present invention;

FIG. 3 is a schematic view of a rubber seal ring with a steel skeleton;

FIG. 4 is a schematic view of a combined sealing structure of an aluminum three-layer ring seal and a felt seal;

in the figure: 1. the split type cylindrical roller bearing comprises a split type cylindrical roller bearing body, a bearing outer ring 1.1, a bearing inner ring 1.2, a cylindrical roller 1.3, a retainer 1.4, a centering seat 2, an upper centering seat 2.1, a lower centering seat 2.2, a bearing seat top cover 3, a bearing seat top cover 4, an end cover 5, a shaft 6, a positioning snap ring 7, a sealing assembly 7, a rubber sealing ring 7.1, a mounting portion 7.11, a first lip 7.12, a second lip 7.13, a steel skeleton 7.14, an aluminum three-layer ring seal 7.2, a felt seal 7.3, a grease storage groove 8, a grease storage groove 9, a lubricating channel 10, an oil groove 11 and a bearing seat base.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1, an air outlet side bearing unit for supporting a fan system comprises a split cylindrical roller bearing sleeved on a shaft, wherein a bearing seat assembly is arranged outside the split cylindrical roller bearing 1, and the split cylindrical roller bearing 1 is externally supported by the bearing seat assembly; the bearing frame subassembly is including aligning seat 2, the inner wall of aligning seat 2 is provided with the assembly groove of assembly subdivision formula cylindrical roller bearing outer lane 1.1, and subdivision formula cylindrical roller bearing 1 carries out the axial through the assembly groove spacing, and 2 both ends of aligning seat are provided with the end cover 4 of suit at the axle outer wall, end cover 4 is sealed through seal assembly 7 with the axle, and subdivision formula cylindrical roller bearing 1 installs in the seal space that aligning seat and axle 5 formed.

Based on the technical scheme, the air outlet side only bears radial load and is borne by a large cylindrical roller bearing. However, the right side is connected by a coupler, so that the installation is difficult, and a split type cylindrical roller bearing structure is designed to solve the installation problem. And finally, designing a matched bearing seat to form a bearing unit for supporting. The end cover can prevent external impurities from entering the split type cylindrical roller bearing, and the end cover and the shaft are sealed through the sealing assembly, so that lubricating grease can be prevented from being leaked. A gap is reserved between the end covers at the two ends and the bearing, so that the bearing is prevented from interfering with the bearing and influencing the rotation of the bearing. Meanwhile, certain lubricating grease can be stored in the gap.

In one embodiment, the split cylindrical roller bearing comprises an outer ring 1.1 split into two semicircles, an inner ring 1.2 split into two semicircles, a plurality of cylindrical rollers 1.3 disposed between the outer ring and the inner ring, and a cage 1.4 split into two semicircles. Because the bearing assembly on the air outlet side is positioned between the fan load and the coupler and is inconvenient to assemble, the split type cylindrical roller bearing can be directly installed on a shaft without being assembled through the shaft end part, the whole fan structure is prevented from being disassembled, and the assembling difficulty is reduced.

In one embodiment, two ends of the inner ring raceway are provided with flanges, the outer diameter surfaces of the flanges at two sides are respectively provided with an annular groove, a positioning snap ring 6 is assembled in the annular groove, and the two semicircular inner rings are fixed through the positioning snap ring 6.

Based on the technical scheme, it should be noted that the two semicircular inner rings are kept in a circular ring shape by the positioning snap ring 6 and fastened on the shaft 5, so that the inner rings are effectively prevented from being separated.

In one embodiment, the positioning snap ring 6 comprises a first snap ring and a second snap ring which are connected through a bolt, the first snap ring and the second snap ring are both of semicircular structures, the first snap ring and the second snap ring surround to form an annular positioning snap ring, and the positioning snap ring 6 is coaxial with the shaft 5.

In one embodiment, the inner diameter surface of the aligning base 2 is provided with a grease storage groove 8, the aligning base is provided with a lubricating channel 9 communicated with the grease storage groove 8, the outer ring 1.1 is provided with a through oil groove 10, and the oil groove 10 is communicated with the grease storage groove 8.

Based on above-mentioned technical scheme, lubricating grease can lubricate cylindrical roller 1.3's rolling surface through lubrication channel 9, fat storage tank 8, oil groove 10, can adopt automatic notes fat system to lubricate the bearing unit.

In one embodiment, the bearing seat assembly further comprises a bearing seat top cover 3 and a bearing seat base 11, the aligning seat 2 is arranged outside the split cylindrical roller bearing 1, the inner wall of the aligning seat 2 is matched with the outer ring of the split cylindrical roller bearing, the aligning seat 2 is supported by the outer bearing seat top cover 3 and the bearing seat base 11, the aligning seat 2 is arranged in an inner cavity formed by connecting the bearing seat top cover 3 and the bearing seat base 11, the outer wall of the aligning seat 2 is arranged to be of a spherical structure, and the inner wall of the bearing seat top cover 3 and the inner wall of the bearing seat base 11 are respectively in spherical matching with the outer wall of the aligning seat 2.

Based on above-mentioned technical scheme, the bearing frame subassembly adopts aligning seat 2 and bearing frame top cap 3 and bearing frame base 11 matched with structure, makes the bearing frame subassembly have the function of aligning, can overcome the inflection under the heavy load, plays certain guard action to the bearing. The aligning seat is matched with the spherical surface of the top cover of the bearing seat, and automatically aligns according to the deformation of the shaft, so that the bearing keeps the correct position to operate, and the reinforced split type cylindrical roller bearing unit with the aligning seat and the aligning sleeve is formed.

In one embodiment, the outer wall of the aligning seat 2 is a convex spherical surface, and the inner wall of the bearing seat top cover 3 and the inner wall of the bearing seat base 11 are concave spherical surfaces matched with the outer wall of the aligning seat 2.

In one embodiment, the aligning seat 2 includes an upper aligning seat 2.1 and a lower aligning seat 2.2 which are semi-circular ring structures, respectively, and the upper aligning seat 2.1 and the lower aligning seat 2.2 are combined to form a ring structure and are matched with the split cylindrical roller bearing 1.

Based on above-mentioned technical scheme, self-aligning seat 2 forms bearing frame subassembly inner ring structure, and bearing frame top cap 3 and bearing frame base 11 form bearing frame subassembly outer loop structure, and inner ring structure and outer loop structure are the semicircle ring structural connection formation, are convenient for assemble and dismantle.

In one embodiment, the end cap 4 and the aligning base 2 are of an integral structure, and the end cap 4 is split into a semicircular ring structure and is connected with the upper aligning base 2.1 and the lower aligning base 2.2 respectively.

In one embodiment, the sealing assembly is a rubber sealing ring 7.1 with a steel skeleton, as shown in fig. 3, an installation part 7.11 of the sealing ring is installed in a sealing groove on the inner diameter surface of the end cover 5, the installation part 7.11 is axially arranged and is assembled in the sealing groove in an interference fit manner along the axial direction, a sealing part of the sealing ring is provided with a first lip 7.12 and a second lip 7.13, the first lip 7.12 is in interference fit with the shaft 6, the second lip 7.13 is in clearance fit with the shaft 6, and the first lip 7.12 is arranged outside the second lip 7.13; the first lip 7.12 is of an angular structure, and the angular end of the angular structure is in interference fit with the shaft 6.

In one embodiment, the seal assembly is formed by combining an aluminum tri-layer ring seal 7.2 with a felt seal 7.3, as shown in fig. 4.

In one embodiment, the bearing unit is adopted on the air outlet side of the fan load, the air inlet side of the fan load needs to bear axial load and radial load at the same time, and a combination of the self-aligning thrust roller bearing and the self-aligning roller bearing is designed. The self-aligning thrust roller bearing mainly bears axial load, the self-aligning roller bearing mainly bears radial load, and a bearing unit is formed by designing and matching bearing seats with the self-aligning function to support. The air inlet side bearing unit comprises a thrust self-aligning roller bearing and a self-aligning roller bearing which are sleeved on a shaft, wherein the thrust self-aligning roller bearing is abutted to the self-aligning roller bearing, a bearing seat assembly is arranged outside the thrust self-aligning roller bearing and the self-aligning roller bearing, and an outer support is provided for the thrust self-aligning roller bearing and the self-aligning roller bearing through the bearing seat assembly.

In one embodiment, the air outlet side of the fan load adopts the bearing unit, and the air inlet side of the fan load is carried by a conventional double-row tapered roller bearing and is externally supported by matching with a bearing seat.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The foregoing lists preferred embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by the person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims (10)

1. The utility model provides a fan system supports with side bearing unit that gives vent to anger which characterized in that: the split type cylindrical roller bearing comprises a split type cylindrical roller bearing sleeved on a shaft, wherein a bearing seat assembly is arranged outside the split type cylindrical roller bearing, and the split type cylindrical roller bearing is externally supported through the bearing seat assembly; the bearing seat assembly comprises an aligning seat, the inner wall of the aligning seat is provided with an assembling groove for assembling an outer ring of a split cylindrical roller bearing, the split cylindrical roller bearing is axially limited through the assembling groove, the two ends of the aligning seat are provided with end covers sleeved on the outer wall of a shaft, the end covers and the shaft are sealed through sealing assemblies, and the split cylindrical roller bearing is installed in a sealing space formed by the aligning seat and the shaft.

2. An outlet side bearing unit for a support of a fan system according to claim 1, wherein: the split type cylindrical roller bearing comprises an outer ring split into two semicircles, an inner ring split into two semicircles, a plurality of cylindrical rollers arranged between the outer ring and the inner ring, and two semicircular retainers.

3. An outlet side bearing unit for a support of a fan system according to claim 2, wherein: flanges are arranged at two ends of the inner ring raceway, annular grooves are respectively arranged on the outer diameter surfaces of the flanges at two sides, positioning snap rings are assembled in the annular grooves, and the two semicircular inner rings are fixed through the positioning snap rings.

4. An outlet side bearing unit for a support of a fan system according to claim 3, wherein: the positioning clamping ring comprises a first clamping ring and a second clamping ring which are connected through a bolt, the first clamping ring and the second clamping ring are of semicircular structures, and the first clamping ring and the second clamping ring surround to form an annular positioning clamping ring.

5. A fan system support outlet side bearing unit in accordance with claim 2, wherein: the inner diameter surface of the aligning seat is provided with a grease storage groove, the aligning seat is provided with a lubricating channel communicated with the grease storage groove, the outer ring is provided with a through oil groove, and the oil groove is communicated with the grease storage groove.

6. An outlet side bearing unit for a support of a fan system according to claim 1, wherein: the bearing seat assembly further comprises a bearing seat top cover and a bearing seat base, the aligning seat is arranged outside the split type cylindrical roller bearing, the inner wall of the aligning seat is matched with the outer ring of the split type cylindrical roller bearing, the aligning seat is supported by the outer bearing seat top cover and the bearing seat base, the aligning seat is arranged in an inner cavity formed by connecting the bearing seat top cover and the bearing seat base, the outer wall of the aligning seat is of a spherical structure, and the inner wall of the bearing seat top cover and the inner wall of the bearing seat base are respectively matched with the outer wall of the aligning seat in a spherical mode.

7. An outlet side bearing unit for a support of a fan system according to claim 6, wherein: the outer wall of the aligning seat is a convex spherical surface, and the inner wall of the bearing seat top cover and the inner wall of the bearing seat base are concave spherical surfaces matched with the outer wall of the aligning seat.

8. An outlet side bearing unit for a support of a fan system according to claim 1, wherein: the aligning seat comprises an upper aligning seat and a lower aligning seat which are both in a semicircular ring structure, and the upper aligning seat and the lower aligning seat are combined to form a ring structure and are matched with the split type cylindrical roller bearing.

9. An outlet side bearing unit for a support of a fan system according to claim 1, wherein: the sealing assembly is a rubber sealing ring with a steel skeleton, an installation part of the sealing ring is installed in a sealing groove on the inner diameter surface of the end cover, the installation part is axially arranged and is assembled in the sealing groove in an interference manner along the axial direction, a sealing part of the sealing ring is provided with a first lip and a second lip, the first lip is in interference fit with the shaft, the second lip is in clearance fit with the shaft, and the first lip is arranged on the outer side of the second lip; the first lip is of an angular structure, and the angle end part of the angular structure is in interference fit with the shaft.

10. An outlet side bearing unit for a support of a fan system according to claim 1, wherein: the sealing component is formed by combining an aluminum three-layer ring type seal and a felt seal.

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