CN218563985U - Air inlet side bearing unit for supporting fan system - Google Patents
Air inlet side bearing unit for supporting fan system Download PDFInfo
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- CN218563985U CN218563985U CN202222585676.4U CN202222585676U CN218563985U CN 218563985 U CN218563985 U CN 218563985U CN 202222585676 U CN202222585676 U CN 202222585676U CN 218563985 U CN218563985 U CN 218563985U
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Abstract
The utility model belongs to the technical field of big fan system test is supporting, concretely relates to fan system supports with admitting air side bearing unit, including the suit at epaxial thrust self-aligning roller bearing and self-aligning roller bearing, thrust self-aligning roller bearing and self-aligning roller bearing adjacent to each other, thrust self-aligning roller bearing and self-aligning roller bearing outside are provided with the bearing frame subassembly, provide the outer support through the bearing frame subassembly to thrust self-aligning roller bearing and self-aligning roller bearing. The utility model discloses a thrust self-aligning roller bearing mainly bears axial load, and self-aligning roller bearing mainly bears radial load's mode, forms the side bearing unit that admits air, has guaranteed bearing unit's bearing capacity, satisfies the side bearing assembly requirement that admits air.
Description
Technical Field
The utility model belongs to the technical field of big fan system test is supporting, concretely relates to fan system supports with admitting air side bearing unit.
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 large, the working condition load is overlarge, and the convenience of installation and maintenance needs to be considered, and because the air inlet side of the fan needs to bear the axial load and the radial load at the same time, a bearing configuration scheme needs to be designed to support the air inlet side of the large fan in order to meet the assembly requirement of the bearing at the air inlet side.
Disclosure of Invention
According to the defect that above-mentioned prior art exists, the utility model aims at providing a fan system supports with admit air side bearing unit, designs thrust self-aligning roller bearing and self-aligning roller bearing's integrated configuration to the supporting bearing unit of bearing frame constitution of design supports.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a fan system supports uses side bearing unit that admits air, includes suit epaxial thrust self-aligning roller bearing and self-aligning roller bearing, thrust self-aligning roller bearing and self-aligning roller bearing adjacent, thrust self-aligning roller bearing and self-aligning roller bearing outside are provided with the bearing frame subassembly, provide the outer support to thrust self-aligning roller bearing and self-aligning roller bearing through the bearing frame subassembly.
Furthermore, the two ends of the bearing seat assembly are provided with end covers sleeved on the outer wall of the shaft, the end covers and the shaft are sealed through a sealing assembly, and the self-aligning thrust roller bearing and the self-aligning roller bearing are installed in a sealing space formed by the bearing seat assembly and the shaft.
Furthermore, a gap is formed between the end cover at one end of the bearing seat assembly and the self-aligning thrust roller bearing, and a gap is formed between the end cover at the other end of the bearing seat assembly and the self-aligning thrust roller bearing.
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 part of the angular structure is in interference fit with the shaft.
Further, the sealing assembly is formed by combining an aluminum three-layer ring type seal and a felt seal.
Further, the bearing frame subassembly includes aligning seat, bearing frame top cap and bearing frame base, the aligning seat sets up at thrust self-aligning roller bearing and self-aligning roller bearing outsidely, and the aligning seat inner wall cooperates with thrust self-aligning roller bearing and self-aligning roller bearing, the aligning seat supports through outside bearing frame top cap and bearing frame base, and the aligning seat is installed in the inner chamber that bearing frame top cap and bearing frame base are connected and are formed, the aligning seat outer wall sets up to spherical structure, and bearing frame top cap inner wall and bearing frame base inner wall cooperate with aligning seat outer wall sphere respectively.
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 self-aligning thrust roller bearing and the self-aligning thrust roller bearing.
Furthermore, the end cover sets up at aligning seat both ends, and the end cover is cut apart into the semicircle ring structure and is connected with last aligning seat and lower aligning seat respectively, the end cover is the integral structure with aligning seat.
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 self-aligning thrust roller bearing is mounted at the shaft shoulder of the shaft, a race of the self-aligning thrust roller bearing abuts against the end face of the shaft shoulder to perform axial limiting, and a shaft ring of the self-aligning thrust roller bearing abuts against the first step face of the inner wall of the self-aligning seat to perform axial limiting.
Furthermore, one end face of the self-aligning roller bearing outer ring abuts against a shaft ring of the self-aligning thrust roller bearing to perform axial limiting, and the other end face of the self-aligning roller bearing outer ring abuts against a second step face of the inner wall of the self-aligning seat to perform axial limiting.
Preferably, the self-aligning thrust roller bearing and the self-aligning roller bearing are replaced by a double-row tapered roller bearing.
The beneficial effects of the utility model are that: the self-aligning roller thrust bearing mainly bears axial load, and the self-aligning roller bearing mainly bears radial load to form an air inlet side bearing unit, so that the bearing capacity of the bearing unit is ensured, and the assembly requirement of the air inlet side bearing is met.
Drawings
FIG. 1 is a partial sectional view showing the construction of an intake side bearing unit for supporting a fan system in accordance with embodiment 1;
FIG. 2 is an exploded view of the structure of an intake side bearing unit for supporting the fan system in accordance with embodiment 1;
FIG. 3 is a partial sectional view showing the construction of an intake side bearing unit for supporting a fan system in accordance with embodiment 2;
FIG. 4 is an exploded view of the structure of an intake side bearing unit for supporting a fan system in accordance with embodiment 2;
FIG. 5 is a schematic view of a rubber seal ring with a steel skeleton;
FIG. 6 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 self-aligning thrust roller bearing comprises a 1.1 seat ring, a 1.2 shaft ring, a 2 self-aligning roller bearing body, a 3 self-aligning seat, a 3.1 first step face, a 3.2 second step face, a 3.3 upper self-aligning seat, a 3.4 lower self-aligning seat, a 4 bearing seat top cover, a 5 end cover, a 6 shaft, a 7 sealing component, a 7.1 rubber sealing ring, a 7.11 installation part, a 7.12 first lip, a 7.13 second lip, a 7.14 steel skeleton, a 7.2 aluminum three-layer ring type seal, a 7.3 felt seal, a 8 bearing seat base, a 9 double-row tapered roller bearing body.
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 invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.
Example 1
Referring to the attached drawings 1-2, the air inlet side bearing unit for supporting the fan system comprises a thrust self-aligning roller bearing 1 and a self-aligning roller bearing 2 which are sleeved on an axle, wherein the thrust self-aligning roller bearing 1 is adjacent to the self-aligning roller bearing 2, bearing seat assemblies are arranged outside the thrust self-aligning roller bearing 1 and the self-aligning roller bearing 2, and the thrust self-aligning roller bearing 1 and the self-aligning roller bearing 2 are externally supported through the bearing seat assemblies.
Based on the technical scheme, the combination of the thrust self-aligning roller bearing and the self-aligning roller bearing is designed by considering that the air inlet side needs to bear the axial load and the radial load simultaneously. The self-aligning thrust roller bearing mainly bears axial load, and the self-aligning roller bearing mainly bears radial load, and a bearing unit is formed by matched bearing seats to support.
In one of the embodiments, the bearing housing assembly includes aligning seat 3, bearing housing top cap 4 and bearing housing base 8, aligning seat 3 sets up at aligning thrust roller bearing 1 and aligning roller bearing 2 outsides, and aligning seat 3 inner wall cooperates with aligning thrust roller bearing 1 and aligning roller bearing 2, aligning seat 3 supports through outside bearing housing top cap 4 and bearing housing base 8, and aligning seat 3 installs in the inner chamber that bearing housing top cap 4 and bearing housing base 8 are connected and are formed, aligning seat 3 outer wall sets up to spherical structure, and bearing housing top cap 4 inner wall and bearing housing base 8 inner wall cooperate with aligning seat 3 outer wall sphere respectively.
Based on above-mentioned technical scheme, the bearing frame subassembly adopts the structure of aligning seat and bearing frame top cap and 8 cooperatees of bearing frame base, makes the bearing frame subassembly have the function of aligning, can overcome the flexure under the heavy load, plays certain guard action to the bearing.
In one embodiment, the aligning base 3 includes an upper aligning base 3.3 and a lower aligning base 3.4 which are semi-circular structures respectively, and the upper aligning base 3.3 and the lower aligning base 3.4 are combined to form a ring structure and are matched with the self-aligning thrust roller bearing 1 and the self-aligning roller bearing 2.
Based on above-mentioned technical scheme, self-aligning seat 3 forms bearing frame subassembly inner loop structure, and bearing frame top cap 4 and bearing frame base 8 form bearing frame subassembly outer loop structure, and inner loop structure and outer loop structure are the semicircular ring structural connection formation, are convenient for assemble and dismantle.
In one embodiment, two ends of the aligning seat 3 are provided with end covers 5 sleeved on the outer wall of the shaft, the end covers 5 and the shaft 6 are sealed through a sealing assembly 7, and the self-aligning thrust roller bearing 1 and the self-aligning thrust roller bearing 2 are installed in a sealing space formed by the bearing seat assembly and the shaft.
Based on above-mentioned technical scheme, inside end cover 5 can block external impurity and get into thrust self-aligning roller bearing and self-aligning roller bearing, the end cover passes through seal assembly with the axle and seals, can prevent that lubricating grease from revealing. The sealing component 7 adopts a sealing ring.
In one embodiment, a gap is formed between the end cover at one end of the bearing seat assembly and the self-aligning thrust roller bearing, and a gap is formed between the end cover at the other end of the bearing seat assembly and the self-aligning thrust roller bearing. 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 sealing assembly is a rubber sealing ring 7.1 with a steel skeleton, as shown in fig. 5, a mounting portion 7.11 of the sealing ring is mounted in a sealing groove on the inner diameter surface of the end cover 5, the mounting portion 7.11 is axially arranged and is axially assembled in the sealing groove in an interference fit manner, a sealing portion 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. 6.
In one embodiment, the end cover 5 and the aligning base 3 are of an integral structure, and the end cover 5 is split into a semicircular ring structure and is connected with the upper aligning base and the lower aligning base respectively.
In one embodiment, the outer wall of the aligning seat 3 is a convex spherical surface, and the inner walls of the bearing seat top cover 4 and the bearing seat base 8 are concave spherical surfaces matched with the outer wall of the aligning seat 3.
In one embodiment, the self-aligning thrust roller bearing 1 is installed at a shaft shoulder of a shaft, the inner diameter surface of a race 1.1 of the self-aligning thrust roller bearing is sleeved on the outer wall of the shaft 6, the race 1.1 of the self-aligning thrust roller bearing abuts against the end surface of the shaft shoulder to perform axial limiting, and a race 1.2 of the self-aligning thrust roller bearing abuts against a first step surface 3.1 of the inner wall of the self-aligning seat to perform axial limiting.
In one embodiment, one end surface of the outer ring of the self-aligning roller bearing 2 abuts against the shaft ring 1.2 of the self-aligning thrust roller bearing 1 for axial limiting, and the other end surface of the outer ring of the self-aligning roller bearing 2 abuts against the second step surface 3.2 of the inner wall of the self-aligning seat for axial limiting.
Based on the technical scheme, the inner wall of the aligning seat is closely matched with the outer diameter surface of the shaft ring of the thrust aligning roller bearing and the outer diameter surface of the outer ring of the aligning roller bearing. Thereby externally supporting the two bearings. The axial limiting surfaces are respectively a shaft ring and an outer ring, and the rotation of the thrust self-aligning roller bearing and the self-aligning roller bearing is not influenced.
In one embodiment, the bearing unit is adopted on the air inlet side of the fan load, the air outlet side of the fan load only bears radial load, the bearing unit is borne by a cylindrical roller bearing with outer rings and inner rings which are divided, so that the assembly is convenient, and the bearing unit is matched with a bearing seat with an aligning function to carry out external support.
In one embodiment, the air inlet side of the fan load adopts the bearing unit, and the air outlet side of the fan load can be carried by a conventional cylindrical roller bearing and is externally supported by matching with a bearing seat.
Example 2
Referring to fig. 3-4, an air inlet side bearing unit for supporting a fan system has a structure substantially the same as that of embodiment 1, except that a bearing sleeved on a shaft is a double-row tapered roller bearing 9, and the double-row tapered roller bearing 9 is externally supported by a bearing seat assembly.
Compared with the two schemes, the two schemes have the advantages that: the embodiment 1 has larger bearing capacity but is complex to install; embodiment 2 has small bearing capacity and simple installation.
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 of the 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 of ordinary skill 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 above list is only the preferred embodiment of the present 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 admitting air side bearing unit which characterized in that: the self-aligning thrust roller bearing and the self-aligning roller bearing are sleeved on the shaft, the self-aligning thrust roller bearing and the self-aligning roller bearing are abutted, the bearing seat assembly is arranged outside the self-aligning thrust roller bearing and the self-aligning roller bearing, and the self-aligning thrust roller bearing and the self-aligning roller bearing are externally supported through the bearing seat assembly.
2. An intake side bearing unit for supporting a fan system according to claim 1, wherein: the two ends of the bearing seat assembly are provided with end covers sleeved on the outer wall of the shaft, the end covers and the shaft are sealed through a sealing assembly, and the self-aligning thrust roller bearing and the self-aligning roller bearing are installed in a sealing space formed by the bearing seat assembly and the shaft.
3. An intake side bearing unit for supporting a fan system according to claim 2, 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 of the angular structure is in interference fit with the shaft.
4. An intake side bearing unit for supporting a fan system according to claim 2, wherein: the sealing component is formed by combining an aluminum three-layer ring type seal and a felt seal.
5. An intake side bearing unit for supporting a fan system according to claim 2, wherein: the bearing seat assembly comprises an aligning seat, a bearing seat top cover and a bearing seat base, wherein the aligning seat is arranged outside the thrust aligning roller bearing and the aligning roller bearing, the inner wall of the aligning seat is matched with the thrust aligning roller bearing and the aligning 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.
6. The intake side bearing unit for supporting a fan system according to claim 5, wherein: the aligning seat comprises an upper aligning seat and a lower aligning seat which are both in a semi-circular ring structure, and the upper aligning seat and the lower aligning seat are combined to form an annular structure and are matched with the self-aligning thrust roller bearing and the self-aligning thrust roller bearing.
7. An intake side bearing unit for supporting a fan system according to claim 6, wherein: the end covers are arranged at two ends of the aligning seat, are divided into semi-circular ring structures and are respectively connected with the upper aligning seat and the lower aligning seat, and are of an integrated structure.
8. The intake side bearing unit for supporting a fan system according to claim 5, wherein: the self-aligning thrust roller bearing is installed at the shaft shoulder of the shaft, the seat ring of the self-aligning thrust roller bearing is abutted against the end face of the shaft shoulder to carry out axial limiting, and the shaft ring of the self-aligning thrust roller bearing is abutted against the first step face of the inner wall of the self-aligning seat to carry out axial limiting.
9. An intake side bearing unit for a fan system support as claimed in claim 8, wherein: one end face of the self-aligning roller bearing outer ring abuts against a shaft ring of the self-aligning thrust roller bearing to perform axial limiting, and the other end face of the self-aligning roller bearing outer ring abuts against a second step face of the inner wall of the self-aligning seat to perform axial limiting.
10. An intake side bearing unit for supporting a fan system according to claim 1, wherein: the thrust self-aligning roller bearing and the self-aligning roller bearing are replaced by double-row tapered roller bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222585676.4U CN218563985U (en) | 2022-09-29 | 2022-09-29 | Air inlet side bearing unit for supporting fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222585676.4U CN218563985U (en) | 2022-09-29 | 2022-09-29 | Air inlet side bearing unit for supporting fan system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218563985U true CN218563985U (en) | 2023-03-03 |
Family
ID=85314620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222585676.4U Active CN218563985U (en) | 2022-09-29 | 2022-09-29 | Air inlet side bearing unit for supporting fan system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218563985U (en) |
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2022
- 2022-09-29 CN CN202222585676.4U patent/CN218563985U/en active Active
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