CN220286311U - Flywheel with key groove for electric vehicle - Google Patents
Flywheel with key groove for electric vehicle Download PDFInfo
- Publication number
- CN220286311U CN220286311U CN202322008068.1U CN202322008068U CN220286311U CN 220286311 U CN220286311 U CN 220286311U CN 202322008068 U CN202322008068 U CN 202322008068U CN 220286311 U CN220286311 U CN 220286311U
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- flywheel
- groove
- oil guide
- upper cover
- grease
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 39
- 238000005461 lubrication Methods 0.000 abstract description 15
- 239000012466 permeate Substances 0.000 abstract description 10
- 239000006185 dispersion Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 53
- 230000005540 biological transmission Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011799 hole material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to the technical field of electric vehicle flywheels, and discloses an electric vehicle flywheel with a key slot, which comprises a flywheel core, a flywheel sleeve and an upper cover, wherein an upper steel ball, a lower steel ball, a first gasket and a second gasket are arranged in a cavity surrounded by the flywheel core, the flywheel sleeve and the upper cover, the flywheel core is provided with an upper step and a lower step which are arranged in a step arrangement, the lower step is provided with an annular oil guide groove, the lower step is provided with an oil guide opening groove extending to the upper step, the annular oil guide groove can help disperse injected grease, so that the injected grease can be covered on a contact surface between the flywheel core and a ball more uniformly, the annular oil guide groove is communicated with the oil guide opening groove to realize uniform dispersion of the grease between the flywheel core and the ball, and the oil guide groove guides the grease to flow out of the annular oil guide groove so as to permeate the annular oil guide groove onto the contact surface along the oil guide opening groove, thus the grease can be ensured to be covered on the contact surface uniformly, and good lubrication and protection are provided.
Description
Technical Field
The utility model belongs to the technical field of electric vehicle flywheels, and particularly relates to an electric vehicle flywheel with a key slot.
Background
The flywheel core inner ring is provided with the internal thread to assemble the flywheel in a rotating mode, so that the flywheel can be more conveniently installed and fixed, safe and reliable connection is ensured, the flywheel can be directly installed on the core inner ring through the internal thread, and the internal thread assembly is simpler, faster and more convenient. However, the flywheel assembled by internal threads may be weak in bearing capacity, the internal thread assembly needs to accurately control the size and precision of threads, including thread specifications, depth and the like, if the thread machining is inaccurate or the assembly is not firm, the risk that the flywheel is loosened or falls off during operation may be caused, the internal thread connection needs to be disassembled and reassembled by using special tools and technologies, and the flywheel is quite difficult to maintain and replace, so that the flywheel with the key slot is conveniently disassembled.
In the prior art, after the flywheel with the key groove and the flywheel with the internal thread are assembled, oil is injected into the installation cavity of the flywheel only through the oil injection hole, but because the flywheel core is of a structure tightly attached to the balls, the injected oil is difficult to disperse and permeate into each part, and because the injected oil is difficult to uniformly disperse on the contact surface between the flywheel and the balls, the situation of insufficient lubrication can occur in partial areas, so that friction and operation effect between the balls and the flywheel are affected, and because the injected oil cannot fully permeate into each part, the oil can be consumed too early, durable lubrication and protection cannot be provided, the friction increase, the wearing aggravation and the shortening of the service life of the parts can be caused, and uneven lubrication and oil consumption can lead to the friction increase between the flywheel and the balls, so that the abrasion and aging of the parts are accelerated.
Disclosure of Invention
The utility model aims to provide a flywheel with a key slot for an electric vehicle, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a flywheel with key grooves for an electric vehicle comprises a flywheel core, a flywheel sleeve and an upper cover, wherein an upper layer steel ball and a lower layer steel ball are arranged in a cavity defined by the flywheel core, the flywheel sleeve and the upper cover.
The flywheel comprises a flywheel core, wherein the flywheel core is provided with a positioning groove which is matched with a lower steel ball for limiting, the flywheel core is provided with an upper step and a lower step which are arranged in a step arrangement mode, the lower step is provided with an annular oil guide groove, the lower step is provided with an oil guide opening groove which extends to the upper step, and the outer edge of an inner hole of the flywheel core is provided with a key groove;
the annular oil guide groove and the oil guide opening groove are formed in the flywheel core, and the annular oil guide groove can help disperse injected grease, so that the grease can be uniformly covered on the contact surface between the flywheel core and the balls. This can improve lubricated homogeneity, reduce the circumstances of local lubrication deficiency, lead oily open slot and can guide grease outwards to permeate other parts, can make grease permeate more well to clearance and friction surface between flywheel and the ball on, improve lubricated effect, annular lead the oil groove and lead oily open slot and can ensure that the grease of pouring into can continuously provide lubrication and protection for the contact surface in the operation process, through promoting grease dispersion and infiltration, can increase the life of grease, reduce the depletion of grease and the demand of frequent replenishment, through providing even and lasting lubrication, annular lead the oil groove and lead oily open slot and can reduce the friction between flywheel and the ball, thereby reduce friction loss and parts wearing and tearing, extension flywheel and ball life.
The flywheel is provided with the key slot, so that the flywheel and the transmission shaft are fixed together, the flywheel and the transmission shaft are prevented from loosening or falling off, the safety of the whole vehicle is improved, the transmission force can be effectively transmitted to the shaft through the flywheel with the key slot, the more efficient energy conversion and transmission are realized, the power output efficiency is improved, the energy loss is reduced, and the flywheel with the key slot is more convenient for maintenance and replacement; when the transmission part needs to be replaced or maintained, a new transmission part can be easily detached or installed only by detaching the connecting bolt on the key groove, the structure of the flywheel with the key groove can increase the stability and reliability of connection, reduce the abrasion and damage caused by long-time friction of the transmission part, and improve the durability of the whole system.
An annular groove is formed in the inner wall of the flywheel sleeve, the annular groove is sleeved on the outer side face of the lower-layer step, and an upper-layer steel ball is placed in a mounting groove formed by surrounding the annular groove, the flywheel sleeve and the lower-layer step;
the upper cover is in threaded connection with the upper step and is used for plugging a notch surrounded by the annular groove and the flywheel sleeve as well as the lower step.
Preferably, the annular oil guide groove is communicated with the oil guide opening groove.
Preferably, the outer side surface of the upper step is provided with an external thread, the inner side surface of the upper cover is provided with an internal thread, and the upper cover is in butt joint with the external thread on the upper step through the internal thread on the upper cover.
Preferably, the annular groove is a toothed annular groove.
Preferably, the upper cover is provided with an oil filling hole, oil or lubricating oil can enter the installation cavity surrounded by the annular groove, the flywheel sleeve and the upper cover and enter the annular oil guide groove, and the oil can be uniformly smeared on the contact surface through the distribution of the oil guide opening groove, so that the oil can be more uniformly distributed on each part.
Preferably, the first gasket and the second gasket are arranged on the lower-layer step in a way of being arranged from bottom to top, and the gasket is abutted against the lower-layer step after the upper cover is in threaded connection with the upper-layer step.
The utility model has the technical effects and advantages that: according to the flywheel with the key groove of the electric vehicle, the annular oil guide groove and the oil guide opening groove are formed in the flywheel core, the annular oil guide groove can help to disperse injected grease, so that the injected grease can be uniformly covered on the contact surface between the flywheel core and the ball, the annular oil guide groove is communicated with the oil guide opening groove, uniform dispersion of the grease between the flywheel core and the ball can be achieved, the grease is guided to flow out of the annular oil guide groove along the oil guide opening groove, so that the grease can be ensured to uniformly cover on the contact surface, good lubrication and protection are provided, the grease can better permeate into the gap and the friction surface between the flywheel core and the ball through the annular oil guide groove communicated with the oil guide opening groove, the lubrication effect of the grease can be improved, friction is reduced, abrasion is reduced, and the service life of the flywheel and the ball is prolonged;
the flywheel takes the keyway to provide a firm connection, is together fixed flywheel and transmission shaft, ensures that it can not become flexible or drop to improve the security of whole car, through the flywheel that has the keyway, the driving force can be transmitted to epaxially effectively, realizes more efficient energy conversion and transmission, improves power take off efficiency, reduces energy loss, and the flywheel of taking the keyway is more convenient to maintenance and change.
Drawings
FIG. 1 is a first exploded view of the present utility model;
FIG. 2 is a second exploded view of the present utility model;
FIG. 3 is a schematic view of the flywheel casing of the present utility model;
FIG. 4 is a schematic view of the structure of the upper cover of the present utility model;
fig. 5 is a schematic structural view of the flywheel core of the present utility model.
In the figure: 1. a flywheel core; 101. a positioning groove; 102. an upper step; 103. a lower step; 104. an annular oil guide groove; 105. an oil guiding open groove; 106. a key slot; 107. an external thread; 2. lower steel balls; 3. a flywheel sleeve; 301. an annular groove; 4. steel balls on the upper layer; 5. an upper cover; 501. an oil filling hole; 6. a first gasket; 7. and a second gasket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a flywheel with a key slot of an electric vehicle, which is shown in figures 1-5, and comprises a flywheel core 1, a flywheel sleeve 3 and an upper cover 5, wherein an upper steel ball 4 and a lower steel ball 2 are arranged in a cavity enclosed by the flywheel core 1, the flywheel sleeve 3 and the upper cover 5.
The flywheel comprises a flywheel core 1, wherein the flywheel core 1 is provided with a positioning groove 101 which is matched with a lower steel ball 2 for limiting, the flywheel core 1 is provided with an upper step 102 and a lower step 103 which are arranged in a step arrangement manner, the lower step 103 is provided with an annular oil guide groove 104, the lower step 103 is provided with an oil guide open groove 105 which extends to the upper step 102, and the outer edge of an inner hole of the flywheel core 1 is provided with a key groove 106;
the flywheel core 1 is provided with the annular oil guide groove 104 and the oil guide opening groove 105, and the annular oil guide groove 104 can help disperse injected grease so that the injected grease can be uniformly covered on the contact surface between the flywheel core 1 and the balls. This can improve lubricated homogeneity, reduce the circumstances of local lubrication deficiency, lead oily open slot 105 can guide grease outwards to permeate other parts, can make grease permeate more on clearance and the friction surface between flywheel and the ball, improve lubricated effect, annular lead oil groove 104 and lead oily open slot 105 can ensure that the grease of injection can continuously provide lubrication and protection for the contact surface in the operation process, through promoting grease dispersion and infiltration, can increase the life of grease, reduce the demand of grease consumption and frequent replenishment, through providing even and lasting lubrication, annular lead oil groove 104 and lead oily open slot 105 can reduce the friction between flywheel and the ball, thereby reduce friction loss and part wearing and tearing, extension flywheel and ball's life.
The flywheel belt key slot 106 can provide a stable connection, the flywheel and the transmission shaft are fixed together, the flywheel and the transmission shaft are ensured not to loosen or fall off, so that the safety of the whole vehicle is improved, the transmission force can be effectively transmitted to the shaft through the flywheel with the key slot 106, the more efficient energy conversion and transmission are realized, the power output efficiency is improved, the energy loss is reduced, and the flywheel with the key slot 106 is more convenient for maintenance and replacement; when the transmission part is required to be replaced or maintained, a new transmission part can be easily detached or installed only by detaching the connecting bolt on the key groove 106, the structure of the flywheel with the key groove 106 can increase the stability and reliability of connection, reduce the abrasion and damage caused by long-time friction of the transmission part, and improve the durability of the whole system.
An annular groove 301 is arranged on the inner wall of the flywheel sleeve 3, the annular groove 301 is a toothed annular groove, the annular groove 301 is sleeved on the outer side surface of the lower step 103, and an upper steel ball 4 is placed in a mounting groove formed by the annular groove 301, the flywheel sleeve 3 and the lower step 103;
the flywheel cover 3 internal surface toothed and steel ball cooperation rotate, can realize rolling friction, thereby reduce the friction loss compared with traditional sliding friction, this transmission efficiency that can improve entire system reduces energy loss, through the cooperation of steel ball and toothed surface, can improve transmission system's bearing capacity, the steel ball bears the pressure through rolling mode, can disperse the load, reduce local stress, improve transmission parts's life-span and reliability, toothed and steel ball's cooperation rotation can more steadily transmit power, the spherical shape of steel ball and toothed surface's profile of tooth can make the transmission more steady and accurate, reduce driven error.
The upper cover 5 is in threaded connection with the upper step 102 and seals the notch surrounded by the annular groove 301, the flywheel sleeve 3 and the lower step 103.
The annular oil guide groove 104 is communicated with the oil guide open groove 105, so that grease can be uniformly dispersed between the flywheel core 1 and the balls, the oil guide groove guides the grease to flow out of the annular oil guide groove 104 to permeate the contact surface along the oil guide open groove 105, so that the grease can be ensured to uniformly cover the contact surface, good lubrication and protection are provided, the grease can better permeate the gap between the flywheel core 1 and the balls and the friction surface through the annular oil guide groove 104 communicated with the oil guide open groove 105, the lubrication effect of the grease can be improved, the friction is reduced, the abrasion is reduced, the service life of the flywheel and the balls is prolonged, the grease can be continuously supplied to the contact surface, the durable lubrication effect can be provided, the exhaustion and frequent replenishment of the grease are reduced, the effective grease dispersion and permeation can reduce the maintenance frequency, the use amount and the replacement times of the grease can be reduced, and the maintenance cost and the workload can be reduced.
The outer side surface of the upper step 102 is provided with an external thread 107, the inner side surface of the upper cover 5 is provided with an internal thread, and the upper cover 5 is in butt joint with the external thread 107 on the upper step 102 through the internal thread on the upper cover 5, so that the upper cover 5 and the flywheel core 1 can be conveniently assembled.
The upper cover 5 is provided with the oil filling hole 501, oil is filled through the oil filling hole 501, grease or lubricating oil can enter the installation cavity enclosed by the annular groove 301, the flywheel sleeve 3 and the upper cover 5, enter the annular oil guide groove 104, and can be uniformly smeared on the contact surface through the distribution of the oil guide opening groove 105, so that the grease can be more uniformly distributed to each part.
The first gasket 6 and the second gasket 7 which are arranged from bottom to top are arranged on the lower-layer step 103 in a cushioning mode, the gasket is abutted to the lower-layer step 103 after the upper cover 5 is in threaded connection with the upper-layer step 102, and the upper cover 5 is more stable to assemble due to the design of the first gasket 6 and the second gasket 7.
According to the flywheel with the key groove of the electric vehicle, during assembly, the flywheel core 1 penetrates out of an inner hole of the flywheel sleeve 3, the base of the flywheel core 1 is limited on the inner side below the flywheel sleeve 3, the lower steel balls 2 are assembled into the positioning groove 101 and abut against the flywheel sleeve 3, the flywheel sleeve 3 can rotate under the rolling action of the balls, then the first gasket 6 and the second gasket 7 are arranged on the lower step 103 from bottom to top, then a circle of upper steel balls 4 are placed above the annular groove 301 of the flywheel sleeve 3, and finally the notch enclosed by the annular groove 301, the flywheel sleeve 3 and the lower step 103 is plugged by screwing the upper cover 5.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. A splined flywheel for an electric vehicle, comprising:
the flywheel comprises a flywheel core (1), wherein a positioning groove (101) which is matched with a lower steel ball (2) for limiting is formed in the flywheel core (1), an upper step (102) and a lower step (103) which are arranged in a step arrangement are formed in the flywheel core (1), an annular oil guide groove (104) is formed in the lower step (103), an oil guide opening groove (105) which extends to the upper step (102) is formed in the lower step (103), and a key groove (106) is formed in the outer edge of an inner hole of the flywheel core (1);
the flywheel sleeve (3), the inner wall of the flywheel sleeve (3) is provided with an annular groove (301), the annular groove (301) is sleeved on the outer side surface of the lower step (103), and an upper steel ball (4) is placed in an installation groove formed by the annular groove (301), the flywheel sleeve (3) and the lower step (103);
the upper cover (5), upper cover (5) and upper step (102) threaded connection, and upper cover (5) are sealed by notch that ring channel (301) and flywheel cover (3) and lower step (103) enclose.
2. The splined flywheel of an electric vehicle of claim 1, wherein: the annular oil guide groove (104) is communicated with the oil guide opening groove (105).
3. The splined flywheel of an electric vehicle of claim 1, wherein: the outer side surface of the upper step (102) is provided with an external thread (107), the inner side surface of the upper cover (5) is provided with an internal thread, and the upper cover (5) is in butt joint with the external thread (107) on the upper step (102) through the internal thread on the upper cover.
4. The splined flywheel of an electric vehicle of claim 1, wherein: the annular groove (301) is a toothed annular groove.
5. The splined flywheel of an electric vehicle of claim 1, wherein: an oil filling hole (501) is formed in the upper cover (5).
6. The splined flywheel of an electric vehicle of claim 1, wherein: the lower-layer step (103) is provided with a first gasket (6) and a second gasket (7) which are arranged from bottom to top, and the upper cover (5) is in threaded connection with the upper-layer step (102) and then abuts against the lower-layer step (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322008068.1U CN220286311U (en) | 2023-07-27 | 2023-07-27 | Flywheel with key groove for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322008068.1U CN220286311U (en) | 2023-07-27 | 2023-07-27 | Flywheel with key groove for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220286311U true CN220286311U (en) | 2024-01-02 |
Family
ID=89340645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322008068.1U Active CN220286311U (en) | 2023-07-27 | 2023-07-27 | Flywheel with key groove for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220286311U (en) |
-
2023
- 2023-07-27 CN CN202322008068.1U patent/CN220286311U/en active Active
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