CN117006156A - Combined roller bearing for new energy vehicle - Google Patents
Combined roller bearing for new energy vehicle Download PDFInfo
- Publication number
- CN117006156A CN117006156A CN202311261192.7A CN202311261192A CN117006156A CN 117006156 A CN117006156 A CN 117006156A CN 202311261192 A CN202311261192 A CN 202311261192A CN 117006156 A CN117006156 A CN 117006156A
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- bearing
- ring
- circumferential surface
- inner ring
- seal
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- 238000007789 sealing Methods 0.000 claims abstract description 51
- 230000008093 supporting effect Effects 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 abstract description 4
- 239000004519 grease Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7896—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members with two or more discrete sealings arranged in series
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The application relates to the technical field of bearings for new energy vehicles, in particular to a combined roller bearing for a new energy vehicle. Comprising the following steps: the device comprises a first bearing, a second bearing, an elastic supporting ring, a first sealing ring and a supporting framework, wherein the first bearing comprises a first bearing outer ring and a first bearing inner ring; an elastic supporting ring is arranged between the inner circumferential surface of the first bearing inner ring and the inner circumferential surface of the second bearing inner ring, a first sealing ring is arranged between the outer circumferential surface of the first bearing inner ring and the outer circumferential surface of the second bearing inner ring, and a supporting framework is arranged between the first bearing outer ring and the second bearing outer ring. Thus, the problem that the axial length of the existing roller bearing cannot meet the requirement is solved.
Description
Technical Field
The application relates to the technical field of bearings for new energy vehicles, in particular to a combined roller bearing for a new energy vehicle.
Background
Along with the development of science and technology, the application scenes of new energy vehicles are more and more, and the new energy vehicles are also required to realize more functions. The roller bearing has wide contact surface with the inner ring and the outer ring and small roller diameter, so the roller bearing can have larger load capacity and rigidity level in smaller space and is commonly used in the transmission shaft of the automobile frame. The common roller bearing is a row of rollers, and the roller bearing generally comprises a bearing inner ring, a bearing outer ring and bearing rollers, wherein the bearing inner ring and the bearing outer ring are combined to form a mounting ring cavity of the bearing rollers, and the bearing rollers are partially positioned at corresponding positions of the roller mounting ring cavity. Along with the increase of the load of the whole vehicle and the change of the use environment of the whole vehicle, the roller bearing of one row of rollers cannot meet the use requirement, and the double-row roller bearing is required to improve the load.
However, as the load demand increases, the double row roller bearings do not meet the current demand for new energy vehicle applications in axial length.
Disclosure of Invention
In order to solve the problem that the axial length of the existing roller bearing cannot meet the requirement, the application provides a combined roller bearing for a new energy vehicle, which comprises the following components:
the bearing comprises a first bearing outer ring and a first bearing inner ring, wherein the second bearing comprises a second bearing outer ring and a second bearing inner ring, the right end face of the first bearing outer ring is abutted with the left end face of the second bearing outer ring, and the right end face of the first bearing inner ring is abutted with the left end face of the second bearing inner ring;
the elastic support ring is arranged between the inner circumferential surface of the first bearing inner ring and the inner circumferential surface of the second bearing inner ring, the first sealing ring is arranged between the outer circumferential surface of the first bearing inner ring and the outer circumferential surface of the second bearing inner ring, and the support framework is arranged between the first bearing outer ring and the second bearing outer ring.
In some embodiments, the elastic support ring has a first protruding portion on the outer circumferential surface on the left side, a second protruding portion on the right side on the outer circumferential surface of the elastic support ring, the first bearing inner ring has a first mounting groove on the right side of the inner circumferential surface, the second bearing inner ring has a second mounting groove on the left side of the inner circumferential surface, the first protruding portion is located in the first mounting groove, and the second protruding portion is located in the second mounting groove.
In some embodiments, the depth of the first mounting groove is L1, and the wall thickness of the right end of the first bearing inner ring is L2, wherein L1 is less than or equal to 1/5L2; the depth of the second mounting groove is L3, and the wall thickness of the left end of the second bearing inner ring is L4, wherein L3 is less than or equal to 1/5L4.
In some embodiments, the first bearing inner ring has a first seal mounting portion on a left side of an outer peripheral surface thereof, the second bearing inner ring has a second seal mounting portion on a right side of the outer peripheral surface thereof, the first seal mounting portion and the second seal mounting portion forming a combined seal mounting groove, and the first seal ring is mounted within the combined seal mounting groove.
In some embodiments, the wall thickness of the right end of the first bearing inner ring is L2, the wall thickness of the left end of the second bearing inner ring is L4, and the depth of the combined seal mounting groove is L5; when L2 is less than or equal to L4, L5 is less than or equal to 1/5L2; when L4 is less than or equal to L2, L5 is less than or equal to 1/5L4.
In some embodiments, the left side of the first sealing ring is provided with a first sealing protruding part, the right side of the first sealing ring is provided with a second sealing protruding part, the first sealing protruding part is abutted with the right outer circumferential surface of the first bearing inner ring, and the second sealing protruding part is abutted with the left outer circumferential surface of the second bearing inner ring.
In some embodiments, the right end face of the first bearing outer ring is provided with a first dovetail mounting groove, the left end face of the second bearing outer ring is provided with a second dovetail mounting groove, the left side of the outer circumferential surface of the support skeleton is provided with a first mounting boss, the right side of the outer circumferential surface of the support skeleton is provided with a second mounting boss, the first mounting boss is located in the first dovetail mounting groove, and the second mounting boss is located in the second dovetail mounting groove.
In some embodiments, a first step mounting portion is disposed on the right side of the inner circumferential surface of the first bearing outer ring, a second step mounting portion is disposed on the left side of the inner circumferential surface of the second bearing outer ring, a third mounting boss is disposed on the left side of the inner circumferential surface of the support frame, a fourth mounting boss is disposed on the right side of the inner circumferential surface of the support frame, the third mounting boss is located at the first step mounting portion, and the fourth mounting boss is located at the second step mounting portion.
In some embodiments, a first guiding protrusion is disposed on the left side of the inner circumferential surface of the supporting framework, a second guiding protrusion is disposed on the right side of the inner circumferential surface of the supporting framework, the first guiding protrusion abuts against the inner circumferential surface on the right side of the first bearing outer ring, and the second guiding protrusion abuts against the inner circumferential surface on the left side of the second bearing outer ring.
In some embodiments, the first bearing further comprises a first bearing roller, a first bearing roller cage, and a second seal ring located between the first bearing outer race and the first bearing inner race, the second seal ring located to the left of the first bearing roller;
the second bearing further comprises a second bearing roller, a second bearing roller retainer, a third sealing ring and a fourth sealing ring, wherein the third sealing ring is positioned between the second bearing outer ring and the second bearing inner ring, the third sealing ring is positioned on the right side of the second bearing roller, and the fourth sealing ring is arranged on the right inner circumferential surface of the second bearing inner ring;
the first bearing outer ring and the second bearing outer ring form a double row conical bearing outer ring.
In order to solve the problem that the axial length of the existing roller bearing cannot meet the requirement, the application has the following advantages:
1. by combining the two bearings, the right end face of the first bearing outer ring is abutted against the left end face of the second bearing outer ring, and the right end face of the first bearing inner ring is abutted against the left end face of the second bearing inner ring, so that the roller bearing with larger size can be combined, and larger load can be borne.
2. The first sealing ring is arranged between the outer circumferential surface of the first bearing inner ring and the outer circumferential surface of the second bearing inner ring, the elastic supporting ring is arranged between the inner circumferential surface of the first bearing inner ring and the inner circumferential surface of the second bearing inner ring, and the supporting framework is arranged between the first bearing outer ring and the second bearing outer ring, so that the tightness of the combined roller bearing can be ensured to be better, and meanwhile, the structure is simple, and the weight is relatively light.
Drawings
FIG. 1 illustrates a schematic view of a combination roller bearing for a new energy vehicle in accordance with one embodiment;
FIG. 2 shows a schematic view of a first bearing inner race and a second bearing inner race of a combination roller bearing for a new energy vehicle of an embodiment;
FIG. 3 shows a schematic view of a first bearing outer race and a second bearing outer race of a combination roller bearing for a new energy vehicle of an embodiment;
FIG. 4 shows a schematic view of a first bearing outer race and a second bearing outer race of a combination roller bearing for a new energy vehicle of another embodiment;
fig. 5 shows a schematic view of the first bearing outer ring and the second bearing outer ring of the combined roller bearing for new energy vehicles according to still another embodiment.
Reference numerals:
01 a first bearing; 11 a first bearing outer ring; 111 a first dovetail mounting slot; 112 a first step mounting portion; 12 a first bearing inner race; 121 a first mounting groove; 122 a first seal mount; 13 first bearing rollers; 14 a first bearing roller cage; 15 a second sealing ring; 02 a second bearing; a second bearing outer ring 21; 211 a second dovetail mounting slot; 212 a second step mounting portion; 22 a second bearing inner race; 221 a second mounting groove; 222 a second seal mount; a second bearing roller 23; 24 second bearing roller cage; 25 a third seal ring; 26 a fourth seal ring; 03 an elastic support ring; 31 a first boss; 32 second bosses; 04 a first sealing ring; 41 a first sealing projection; 42 second sealing projections; 05 supporting a framework; 51 a first mounting boss; 52 second mounting bosses; 53 a third mounting boss; 54 a fourth mounting boss; 55 a first guide projection; 56 second guide bosses.
Detailed Description
The disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus practice the present disclosure, and are not meant to imply any limitation on the scope of the present disclosure.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment. The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal", etc. refer to an orientation or positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The embodiment discloses a new forms of energy automobile-used combination roller bearing, as shown in fig. 1, can include: the first bearing 01, the second bearing 02, the elastic supporting ring 03, the first sealing ring 04 and the supporting framework 05, wherein the first bearing 01 comprises a first bearing outer ring 11 and a first bearing inner ring 12, the second bearing 02 comprises a second bearing outer ring 21 and a second bearing inner ring 22, the right end face of the first bearing outer ring 11 is abutted with the left end face of the second bearing outer ring 21, and the right end face of the first bearing inner ring 12 is abutted with the left end face of the second bearing inner ring 22;
an elastic support ring 03 is provided between the inner circumferential surface of the first bearing inner ring 12 and the inner circumferential surface of the second bearing inner ring 22, a first seal ring 04 is provided between the outer circumferential surface of the first bearing inner ring 12 and the outer circumferential surface of the second bearing inner ring 22, and a support frame 05 is provided between the first bearing outer ring 11 and the second bearing outer ring 21.
In this embodiment, as shown in fig. 1, a new energy vehicle combined roller bearing may include a first bearing 01 and a second bearing 02. The first bearing 01 may include a first bearing outer race 11, a first bearing inner race 12, and the second bearing 02 may include a second bearing outer race 21, a second bearing inner race 22. The right end face of the first bearing outer ring 11 and the left end face of the second bearing outer ring 21 may abut, and the right end face of the first bearing inner ring 12 and the left end face of the second bearing inner ring 22 may abut. The inner structures of the first bearing outer ring 11 and the second bearing outer ring 21 may be the same or different. The internal structures of the first bearing inner race 12 and the second bearing inner race 22 may be the same or different. The combination of the first bearing 01 and the second bearing 02 can be a roller bearing of a larger size, and can bear a larger load. An elastic support ring 03 may be disposed between the inner circumferential surface of the first bearing inner race 12 and the inner circumferential surface of the second bearing inner race 22, and the elastic support ring 03 may be used to avoid loose sleeves due to its own weight. The elastic support ring 03 may also have a sealing function. A first sealing ring 04 may be provided between the outer circumferential surface of the first bearing inner ring 12 and the outer circumferential surface of the second bearing inner ring 22, the first sealing ring 04 being operable to avoid grease leakage. A support skeleton 05 may be provided between the first bearing outer race 11 and the second bearing outer race 21, and the support skeleton 05 may be used to fixedly connect the first bearing outer race 11 and the second bearing outer race 21 portions. By arranging the elastic supporting ring 03, the first sealing ring 04 and the supporting framework 05 between the first bearing 01 and the second bearing 02, the tightness of the combined roller bearing can be ensured to be better, and meanwhile, the combined roller bearing is simple in structure and relatively light in weight.
In some embodiments, as shown in fig. 2, the elastic support ring 03 has a first protrusion 31 on the left side of the outer circumferential surface, a second protrusion 32 on the right side of the outer circumferential surface, the first bearing inner ring 12 has a first mounting groove 121 on the right side of the inner circumferential surface, and the second bearing inner ring 22 has a second mounting groove 221 on the left side of the inner circumferential surface, the first protrusion 31 is located in the first mounting groove 121, and the second protrusion 32 is located in the second mounting groove 221.
In the present embodiment, as shown in fig. 2, a first protrusion 31 may be provided on the left side and a second protrusion 32 may be provided on the right side on the outer circumferential surface of the elastic support ring 03. A first mounting groove 121 may be provided on the right side of the inner circumferential surface of the first bearing inner ring 12, and a second mounting groove 221 may be provided on the left side of the inner circumferential surface of the second bearing inner ring 22. By arranging the first protruding portion 31 to be able to nest into the first mounting groove 121, the second protruding portion 32 to be able to nest into the second mounting groove 221, the supporting effect of the elastic supporting ring 03 can be ensured to be better, loose sleeves can be effectively prevented, and meanwhile, the tightness is better.
In some embodiments, as shown in FIG. 2, the depth of the first mounting groove 121 is L1, and the wall thickness of the right end of the first bearing inner ring 12 is L2, wherein L1 is less than or equal to 1/5L2; the depth of the second mounting groove 221 is L3, and the wall thickness of the left end of the second bearing inner ring 22 is L4, wherein L3 is less than or equal to 1/5L4.
In the present embodiment, as shown in fig. 2, the wall thickness L2 of the right end of the first bearing inner ring 12 may be set to be 1/5 or less of the depth L1 of the first mounting groove 121, and the wall thickness L4 of the left end of the second bearing inner ring 22 may be set to be 1/5 or less of the depth L3 of the second mounting groove 221, and the strength of the first bearing inner ring 12 and the second bearing inner ring 22 may be also ensured under the premise of ensuring sealing.
In some embodiments, as shown in fig. 2, the left side of the outer circumferential surface of the first bearing inner ring 12 has a first seal mounting portion 122, the right side of the outer circumferential surface of the second bearing inner ring 22 has a second seal mounting portion 222, the first seal mounting portion 122 and the second seal mounting portion 222 form a combined seal mounting groove, and the first seal ring 04 is mounted in the combined seal mounting groove.
In the present embodiment, as shown in fig. 2, a first seal mounting portion 122 may be provided on the left side of the outer peripheral surface of the first bearing inner ring 12, and a second seal mounting portion 222 may be provided on the right side of the outer peripheral surface of the second bearing inner ring 22. The first seal mounting portion 122 and the second seal mounting portion 222 may form a combined seal mounting groove. The first sealing ring 04 can be arranged in the middle of the combined sealing installation groove, so that the combined sealing installation groove can be sealed better.
In some embodiments, as shown in fig. 2, the wall thickness of the right end of the first bearing inner ring 12 is L2, the wall thickness of the left end of the second bearing inner ring 22 is L4, and the depth of the combined seal mounting groove is L5; when L2 is less than or equal to L4, L5 is less than or equal to 1/5L2; when L4 is less than or equal to L2, L5 is less than or equal to 1/5L4.
In the present embodiment, as shown in fig. 2, when the wall thickness L2 of the right end of the first bearing inner ring 12 is equal to or less than the wall thickness L4 of the left end of the second bearing inner ring 22, the depth L5 of the combined seal mounting groove is equal to or less than 1/5L2. When the wall thickness L4 of the left end of the second bearing inner ring 22 is smaller than or equal to the wall thickness L2 of the right end of the first bearing inner ring 12, the depth L5 of the combined seal mounting groove is smaller than or equal to 1/5L4. The structures of the first bearing inner race 12 and the second bearing inner race 22 may be different, and when the wall thickness L2 at the right end of the first bearing inner race 12 and the wall thickness L4 at the left end of the second bearing inner race 22 are not equal, the strength of the first bearing inner race 12 and the second bearing inner race 22 can be ensured by setting 1/5 of the smallest value among the depths L5. Ltoreq.l2, L4 of the combined seal mounting groove.
In some embodiments, as shown in fig. 2, the first seal ring 04 has a first seal protrusion 41 on the left side, the first seal ring 04 has a second seal protrusion 42 on the right side, the first seal protrusion 41 abuts against the right outer circumferential surface of the first bearing inner ring 12, and the second seal protrusion 42 abuts against the left outer circumferential surface of the second bearing inner ring 22.
In this embodiment, as shown in fig. 2, a first sealing protrusion 41 may be disposed on the left side of the first sealing ring 04, and a second sealing protrusion 42 may be disposed on the right side of the first sealing ring 04. The first seal boss 41 may abut against the right outer circumferential surface of the first bearing inner ring 12, and the second seal boss 42 may abut against the left outer circumferential surface of the second bearing inner ring 22. By providing the first seal boss 41 and the second seal boss 42 on the first seal ring 04, a seal can be formed. In addition, the combination of the first seal mounting portion 122 and the second seal mounting portion 222, and the first seal ring 04 can form three seals, so that the sealing effect is better. Grease can be stored in the cavity formed by the first sealing boss 41 and the second sealing boss 42, and leakage of grease can be prevented better.
In some embodiments, as shown in fig. 3, the right end surface of the first bearing outer ring 11 is provided with a first dovetail mounting groove 111, the left end surface of the second bearing outer ring 21 is provided with a second dovetail mounting groove 211, the left side of the outer circumferential surface of the support skeleton 05 is provided with a first mounting boss 51, the right side of the outer circumferential surface of the support skeleton 05 is provided with a second mounting boss 52, the first mounting boss 51 is located in the first dovetail mounting groove 111, and the second mounting boss 52 is located in the second dovetail mounting groove 211.
In the present embodiment, as shown in fig. 3, a first dovetail mounting groove 111 may be provided in the right end face of the first bearing outer race 11, and a second dovetail mounting groove 211 may be provided in the left end face of the second bearing outer race 21. The left side of the outer circumferential surface of the support frame 05 may be provided with a first mounting boss 51, and the right side of the outer circumferential surface of the support frame 05 may be provided with a second mounting boss 52. Through setting up first forked tail mounting groove 111 and second forked tail mounting groove 211, can play the guide effect for first installation bellying 51 can nest more smoothly into first forked tail mounting groove 111, and second installation bellying 52 can nest more smoothly into second forked tail mounting groove 211, can also guarantee that support strength of supporting skeleton 05 is bigger, and the sealed effect is better.
In some embodiments, as shown in fig. 4, the right side of the inner circumferential surface of the first bearing outer race 11 is provided with the first step mounting portion 112, the left side of the inner circumferential surface of the second bearing outer race 21 is provided with the second step mounting portion 212, the left side of the inner circumferential surface of the support frame 05 is provided with the third mounting boss 53, the right side of the inner circumferential surface of the support frame 05 is provided with the fourth mounting boss 54, the third mounting boss 53 is located at the first step mounting portion 112, and the fourth mounting boss 54 is located at the second step mounting portion 212.
In the present embodiment, as shown in fig. 4, a first step mounting portion 112 may be provided on the right side of the inner circumferential surface of the first bearing outer ring 11, and a second step mounting portion 212 may be provided on the left side of the inner circumferential surface of the second bearing outer ring 21. The third mounting boss 53 may be provided on the left side of the inner circumferential surface of the support frame 05, and the fourth mounting boss 54 may be provided on the right side of the inner circumferential surface of the support frame 05. By providing the third mounting boss 53 to be nested into the first step mounting portion 112, the fourth mounting boss 54 to be nested into the second step mounting portion 212, it is possible to ensure a greater supporting strength of the supporting frame 05.
In some embodiments, as shown in fig. 5, a first guide protrusion 55 is provided on the left side of the inner circumferential surface of the support frame 05, a second guide protrusion 56 is provided on the right side of the inner circumferential surface of the support frame 05, the first guide protrusion 55 abuts against the inner circumferential surface on the right side of the first bearing outer ring 11, and the second guide protrusion 56 abuts against the inner circumferential surface on the left side of the second bearing outer ring 21.
In the present embodiment, as shown in fig. 5, a first guide protrusion 55 may be provided on the left side of the inner circumferential surface of the support frame 05, and a second guide protrusion 56 may be provided on the right side of the inner circumferential surface of the support frame 05. The first guide boss 55 abuts against the inner circumferential surface on the right side of the first bearing outer ring 11, and the second guide boss 56 abuts against the inner circumferential surface on the left side of the second bearing outer ring 21. By providing the first guide projection 55 and the second guide projection 56 on the support frame 05, a better seal can be formed. Meanwhile, grease can be stored in the cavity formed by the first guide convex part 55 and the second guide convex part 56, so that the leakage of the grease can be prevented better.
In some embodiments, as shown in fig. 1, the first bearing 01 further includes a first bearing roller 13, a first bearing roller cage 14, and a second seal ring 15, the second seal ring 15 being located between the first bearing outer race 11 and the first bearing inner race 12, the second seal ring 15 being located to the left of the first bearing roller 13; the second bearing 02 further comprises a second bearing roller 23, a second bearing roller retainer 24, a third seal ring 25 and a fourth seal ring 26, the third seal ring 25 being located between the second bearing outer race 21 and the second bearing inner race 22, the third seal ring 25 being located on the right side of the second bearing roller 23, the fourth seal ring 26 being disposed on the right inner circumferential surface of the second bearing inner race 22; the first bearing outer race 11 and the second bearing outer race 21 form a double row conical bearing outer race.
In this embodiment, as shown in fig. 1, the first bearing 01 may further include a first bearing roller 13, a first bearing roller cage 14, and a second seal ring 15. The first bearing roller cage 14 may be used to prevent mutual friction during tilting or movement of the first bearing rollers 13. The second seal ring 15 may be located between the first bearing outer race 11 and the first bearing inner race 12, and the second seal ring 15 may be located to the left of the first bearing rollers 13. The second seal 15 prevents grease from leaking out of the roller bearing between the first bearing outer race 11 and the first bearing inner race 12. The second bearing 02 may further include a second bearing roller 23, a second bearing roller cage 24, a third seal ring 25, and a fourth seal ring 26. The second bearing roller cage 24 may be used to prevent mutual friction during tilting or movement of the second bearing rollers 23. A third seal ring 25 may be located between the second bearing outer race 21 and the second bearing inner race 22, the third seal ring 25 being located to the right of the second bearing roller 23. The third seal 25 prevents grease from leaking out of the roller bearing between the second bearing outer race 21 and the second bearing inner race 22. A fourth seal ring 26 may be provided on the right inner circumferential surface of the second bearing inner ring 22, and the fourth seal ring 26 may be used to seal an end surface of the second bearing inner ring 22. The first bearing roller 13 and the second bearing roller 23 may have the same size and structure, or may have different sizes and structures. The first bearing outer race 11 and the second bearing outer race 21 may form a double row conical bearing outer race. The first bearing rollers 13 and the second bearing rollers 23 are each arranged in an obliquely symmetrical manner, so that the combined roller bearing can withstand both axial and radial forces. The second sealing ring 15 and the third sealing ring 25 can adopt a combined sealing structure or a single-piece sealing structure according to the actual working condition requirement.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementing the disclosure, and that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.
Claims (10)
1. The utility model provides a combination roller bearing for new energy automobile-used which characterized in that, combination roller bearing for new energy automobile-used includes:
the bearing comprises a first bearing outer ring and a first bearing inner ring, wherein the second bearing comprises a second bearing outer ring and a second bearing inner ring, the right end face of the first bearing outer ring is abutted with the left end face of the second bearing outer ring, and the right end face of the first bearing inner ring is abutted with the left end face of the second bearing inner ring;
the elastic support ring is arranged between the inner circumferential surface of the first bearing inner ring and the inner circumferential surface of the second bearing inner ring, the first sealing ring is arranged between the outer circumferential surface of the first bearing inner ring and the outer circumferential surface of the second bearing inner ring, and the support framework is arranged between the first bearing outer ring and the second bearing outer ring.
2. The combination roller bearing for new energy vehicles according to claim 1, wherein a first protruding portion is provided on the left side of the outer circumferential surface of the elastic support ring, a second protruding portion is provided on the right side of the outer circumferential surface of the elastic support ring, a first mounting groove is provided on the right side of the inner circumferential surface of the first bearing inner ring, a second mounting groove is provided on the left side of the inner circumferential surface of the second bearing inner ring, the first protruding portion is located in the first mounting groove, and the second protruding portion is located in the second mounting groove.
3. The combined roller bearing for new energy vehicles according to claim 2, wherein the depth of the first mounting groove is L1, the wall thickness of the right end of the first bearing inner ring is L2, and L1 is less than or equal to 1/5L2; the depth of the second mounting groove is L3, and the wall thickness of the left end of the second bearing inner ring is L4, wherein L3 is less than or equal to 1/5L4.
4. The combination roller bearing for a new energy vehicle according to claim 1, wherein a first seal mounting portion is provided on a left side of an outer peripheral surface of the first bearing inner ring, a second seal mounting portion is provided on a right side of the outer peripheral surface of the second bearing inner ring, the first seal mounting portion and the second seal mounting portion form a combination seal mounting groove, and the first seal ring is mounted in the combination seal mounting groove.
5. The combined roller bearing for new energy vehicles according to claim 4, wherein the wall thickness of the right end of the first bearing inner ring is L2, the wall thickness of the left end of the second bearing inner ring is L4, and the depth of the combined seal mounting groove is L5; when L2 is less than or equal to L4, L5 is less than or equal to 1/5L2; when L4 is less than or equal to L2, L5 is less than or equal to 1/5L4.
6. The combination roller bearing for a new energy vehicle according to claim 5, wherein a first sealing protrusion is provided on the left side of the first sealing ring, a second sealing protrusion is provided on the right side of the first sealing ring, the first sealing protrusion abuts against the right outer circumferential surface of the first bearing inner ring, and the second sealing protrusion abuts against the left outer circumferential surface of the second bearing inner ring.
7. The combined roller bearing for new energy vehicles according to claim 6, wherein a first dovetail mounting groove is formed in the right end face of the first bearing outer ring, a second dovetail mounting groove is formed in the left end face of the second bearing outer ring, a first mounting boss is formed in the left side of the outer circumferential surface of the supporting framework, a second mounting boss is formed in the right side of the outer circumferential surface of the supporting framework, the first mounting boss is located in the first dovetail mounting groove, and the second mounting boss is located in the second dovetail mounting groove.
8. The combination roller bearing for a new energy vehicle according to claim 7, wherein a first step mounting portion is provided on the right side of the inner circumferential surface of the first bearing outer ring, a second step mounting portion is provided on the left side of the inner circumferential surface of the second bearing outer ring, a third mounting boss is provided on the left side of the inner circumferential surface of the supporting frame, a fourth mounting boss is provided on the right side of the inner circumferential surface of the supporting frame, the third mounting boss is located at the first step mounting portion, and the fourth mounting boss is located at the second step mounting portion.
9. The combination roller bearing for a new energy vehicle according to claim 7, wherein a first guide boss is provided on the left side of the inner circumferential surface of the support frame, a second guide boss is provided on the right side of the inner circumferential surface of the support frame, the first guide boss abuts against the inner circumferential surface on the right side of the first bearing outer ring, and the second guide boss abuts against the inner circumferential surface on the left side of the second bearing outer ring.
10. The combination roller bearing for new energy vehicles according to any one of claims 1 to 9, wherein the first bearing further comprises a first bearing roller, a first bearing roller retainer and a second seal ring, the second seal ring is located between the first bearing outer ring and the first bearing inner ring, and the second seal ring is located on the left side of the first bearing roller;
the second bearing further comprises a second bearing roller, a second bearing roller retainer, a third sealing ring and a fourth sealing ring, wherein the third sealing ring is positioned between the second bearing outer ring and the second bearing inner ring, the third sealing ring is positioned on the right side of the second bearing roller, and the fourth sealing ring is arranged on the right inner circumferential surface of the second bearing inner ring;
the first bearing outer ring and the second bearing outer ring form a double row conical bearing outer ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261192.7A CN117006156B (en) | 2023-09-27 | 2023-09-27 | Combined roller bearing for new energy vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261192.7A CN117006156B (en) | 2023-09-27 | 2023-09-27 | Combined roller bearing for new energy vehicle |
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| CN117006156A true CN117006156A (en) | 2023-11-07 |
| CN117006156B CN117006156B (en) | 2023-12-26 |
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| CN202311261192.7A Active CN117006156B (en) | 2023-09-27 | 2023-09-27 | Combined roller bearing for new energy vehicle |
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| CN117006156B (en) | 2023-12-26 |
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