CN214647353U - Lightweight balance shaft assembly - Google Patents
Lightweight balance shaft assembly Download PDFInfo
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- CN214647353U CN214647353U CN202120493762.5U CN202120493762U CN214647353U CN 214647353 U CN214647353 U CN 214647353U CN 202120493762 U CN202120493762 U CN 202120493762U CN 214647353 U CN214647353 U CN 214647353U
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- bearing hub
- mounting part
- installation department
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Abstract
The utility model provides a lightweight balance shaft assembly, including balance shaft support, bearing hub, bush, balance shaft support includes Y type support body, the upper portion both sides of support body all are equipped with the longeron installation department of taking the mounting hole, the lower part is equipped with the distance rod installation department of taking the mounting hole, be equipped with hollow bearing hub installation department along the vertical direction in the middle of support body one side, the opposite side is equipped with the crossbeam installation department of taking the mounting hole, be equipped with the bolt mounting hole that is used for fixed end cover on the axial lead direction of bearing hub installation department along the support body, bearing hub and bush pass through the end cover and adopt the bolt fastening on the bearing hub installation department of support, balance shaft support and bearing hub all adopt lightweight structure. The utility model discloses an adopt the lightweight design of balance shaft support and bearing hub, under the prerequisite of guaranteeing bearing capacity, reliability, realized lightweight target, and convenient the maintenance.
Description
Technical Field
The utility model relates to a vehicle and engineering field, concretely relates to balanced axle assembly of lightweight.
Background
The balance shaft assembly is widely applied to heavy-duty automobiles, has the function of elastically connecting an axle and a frame, and has the functions of guiding, buffering and damping.
Structure of the existing balance shaft assembly (as shown in fig. 1): the anti-thrust bearing comprises a support and a half shaft (namely a bearing hub installation part) extending out of the support, wherein a bearing hub is sleeved on the half shaft, a bushing is arranged between the inner wall of the bearing hub and the half shaft, an inner thrust gasket is arranged on the half shaft between the bearing hub and the support, an end cover is arranged on the outer side of the bearing hub, an outer thrust plate is arranged between the end cover and the bearing hub, and the end cover is fixed on the half shaft and the bearing hub through bolts.
The inventor discovers that:
the existing balance shaft assembly is relatively complex in structure and more in connecting pieces, and once the balance shaft assembly fails, the balance shaft assembly is not easy to disassemble, time and labor are consumed for maintenance, and the maintenance cost is increased; meanwhile, in order to increase the bearing capacity and strength of the balance shaft assembly, the weight of the balance shaft support with the corresponding structure is overweight, and the trend of light weight development of the whole vehicle is not facilitated.
U type bolt installation department on the bearing hub of current balance shaft assembly sets up the both sides at the rectangle seat more, and this kind of mounting structure's stress point mainly concentrates on the rectangle seat, leads to the rectangle seat fracture to appear easily under drawing the compression torsion effect, leads to leaf spring to drop, and the weight of bearing hub is general heavier, does not adapt to whole car lightweight requirement.
Disclosure of Invention
The utility model aims at providing a bear the weight-reducing balance shaft assembly that can reinforce under the prerequisite of assurance intensity in order to realize the lightweight target of balance shaft assembly.
Therefore, the technical scheme of the utility model is that: the utility model provides a balanced axle assembly of lightweight, including the balance shaft support, the bearing hub, the bush, the balance shaft support includes Y type support body, the upper portion both sides of support body all are equipped with the longeron installation department of taking the mounting hole, the lower part is equipped with the distance rod installation department of taking the mounting hole, be equipped with hollow bearing hub installation department along the vertical direction in the middle of support body one side, the opposite side is equipped with the crossbeam installation department of taking the mounting hole, be equipped with the bolt mounting hole that is used for fixed end cover on the axial lead direction of support body edge bearing hub installation department, bearing hub and bush pass through the end cover and adopt the bolt fastening on the bearing hub installation department of support, its characterized in that: the balance shaft bracket and the bearing hub both adopt light weight structures,
the light-weight structure of the balance shaft support is as follows:
the bracket body adopts a thin-wall thick structure, a reinforcing rib edge is arranged along the outer contour of the bracket body,
the beam mounting part is of a plate-shaped structure which extends out in the vertical direction and is provided with a weight reduction cavity in the middle, the bottoms of the two sides are connected through support plates, the positions close to the bracket body are in transition connection through arc-shaped grooves, the inner ends of the support plates are attached to the bracket body, the support plates on the two sides extend downwards from top to bottom, the distance between the support plates and the length between the outer ends of the support plates and the bracket body are gradually reduced, the support plates are connected into a whole through arc-shaped transition below the bolt mounting hole, and the two support plates above the bolt mounting hole are connected through reinforcing rib plates;
the bolt mounting hole is provided with a boss, the bolt mounting hole penetrates through the center of the boss, and the boss of the bolt mounting hole, which is positioned below the beam mounting part, is connected with the reinforcing rib plate, the support plates on two sides and the arc-shaped transition part of the support plates through cross-shaped reinforcing ribs;
the lower parts of the supporting plates on two sides are connected with the reinforcing rib edges of the outer contour of the adjacent bracket body through first transverse reinforcing ribs; the upper parts of the supporting plates on the two sides are provided with inverted L-shaped reinforcing ribs, one ends of the inverted L-shaped reinforcing ribs are connected with the supporting plates, and the other ends of the inverted L-shaped reinforcing ribs are connected with the first transverse reinforcing ribs and the connecting parts of the reinforcing rib edges of the outer contour of the bracket body; wherein: an inclined reinforcing rib is arranged between the bending part of the inverted L-shaped reinforcing rib and the longitudinal beam mounting part; the vertical section of the inverted L-shaped reinforcing rib is connected with the reinforcing rib edge of the outer contour of the bracket body through a second transverse reinforcing rib; the arc transition connecting parts at the lower parts of the supporting plates at the two sides are connected with the thrust rod mounting part at the lower part through longitudinal reinforcing ribs;
the lightweight structure of bearing hub does:
comprises a balance shaft mounting part in the middle, a rectangular seat is arranged at the top of the balance shaft mounting part, the width of the rectangular seat is less than the axial length of the balance shaft mounting part and is matched with the inner space of the U-shaped bolt, limit baffles are arranged at the front and the back of the rectangular seat, the limit baffles are fixed at the front and the back of the top of the balance shaft mounting part,
the two sides of the balance shaft mounting part below the two sides of the limiting baffle are respectively provided with a cylindrical U-shaped bolt mounting part, the U-shaped bolt mounting parts are attached to the balance shaft mounting part through transition connection, bolt through holes are formed in the U-shaped bolt mounting parts, and the two U-shaped bolt mounting parts on the same side are connected through a first reinforcing rib;
first lightening grooves are respectively formed between two sides of a plate spring center positioning hole in the top surface of the rectangular seat and the arc-shaped top surface of the balance shaft mounting part, and two second lightening grooves are formed between the top of the limiting baffle and the arc-shaped top surface of the balance shaft mounting part.
Preferably, the bearing hub mounting part of the balance shaft bracket extends from the middle part to the bracket body direction, the outer diameter of the bearing hub mounting part is gradually increased, and a key groove for preventing the end cover from rotating is axially arranged at the outer end of the bearing hub mounting part; the balance shaft mounting part in the middle of the bearing hub is provided with a structure that the middle necking down and the hole diameter gradually increasing towards the two ends are extended, and the bushings are two conical bushings and are arranged in a cavity between the bearing hub mounting part of the balance shaft support and the balance shaft mounting part in the middle of the bearing hub side by side. This kind of necking down die cavity structure reaches and sets up two with the bush, does not need lubricated medium, is superior to current staple bolt formula rubber bush to leaf spring axial spacing, and bearing capacity is also better a little, convenient dismantlement simultaneously, and cost of maintenance is low, efficient.
Preferably, the end cover is internally provided with a groove matched with the outer end of the bearing hub installation part, an elastic locking plate with an outer diameter gradually reduced to be of an outer cone structure is arranged along the outer periphery of the groove and extends towards the direction of the balance shaft support body, the outer end of the bearing hub installation part passes through the middle cavity of the elastic locking plate and is inserted into the groove of the end cover, the elastic locking plate is inserted between the bearing hub installation part and the bush in a wedge shape and is used for limiting the bush and the bearing hub, key grooves are uniformly distributed on the elastic locking plate, and the elastic locking plate is matched with the key grooves at the outer end of the bearing hub installation part in a limiting manner through flat keys. The structure is convenient to install, maintain and disassemble.
Preferably, the first lightening grooves of the bearing hub gradually reduce in width from the middle of the rectangular seat to the two sides, and the second lightening grooves gradually reduce in width from the two sides of the limiting baffle to the middle, so that strength is guaranteed while lightening.
Preferably, both axial ends of the balance shaft mounting part of the bearing hub are provided with reinforcing rib edges, the outer peripheral surface is a groove with two high ends and a low middle part, the bottom surface of the balance shaft mounting part is axially provided with a second reinforcing rib, and the second reinforcing rib is attached to the bottom surface of the balance shaft mounting part, so that the strength is ensured while the weight is reduced.
Preferably, the balance shaft support and the bearing hub are of an integrally cast structure, so that the forming is convenient, the number of connecting pieces is reduced, the maintenance is convenient, the surface quality and the overall quality can be improved, and the manufacturing cost is reduced.
Has the advantages that: the utility model discloses an adopt lightweight balance shaft support and bearing hub, under the prerequisite of guaranteeing bearing capacity, reliability, realized lightweight target. Wherein:
the light-weight balance shaft support realizes the weight reduction target by arranging a thin-wall thick structure, a plate-shaped structure with a weight reduction cavity in the middle, an arc-shaped groove and the length of the outer end of the support plate from the support body; the reinforcing ribs are connected to form the integral framework of the balance shaft bracket by arranging the reinforcing rib edges, the reinforcing rib plates, the cross-shaped reinforcing ribs, the inverted L-shaped reinforcing ribs, the obliquely arranged reinforcing ribs, the second transverse reinforcing ribs and the longitudinal reinforcing ribs, so that the balance shaft bracket is attractive and light in appearance, and the strength of the balance shaft bracket is ensured under the condition of thick thin wall.
The light bearing hub has the advantages that the U-shaped bolt mounting parts are arranged on two sides of the balance shaft mounting part, so that stress points are dispersed, and the integral use strength of the bearing hub is ensured; meanwhile, the first weight reduction groove, the second weight reduction groove and the arc-shaped groove are arranged, so that the weight of the bearing hub is reduced, and the aim of light weight is fulfilled.
Drawings
Fig. 1 is a front sectional view of a conventional balance shaft assembly.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a partial cross-sectional left view of fig. 2.
Fig. 5 is a first perspective view of the balance shaft bracket of the present invention.
Fig. 6 is a second perspective view of the balance shaft bracket of the present invention.
Fig. 7 is a third perspective view of the balance shaft bracket of the present invention.
Fig. 8 is a front sectional view of fig. 6.
Fig. 9 is a partial cross-sectional view of the right side of fig. 8.
Fig. 10 is a perspective view of the bearing hub of the present invention.
Fig. 11 is a front view of the bearing hub of the present invention.
Fig. 12 is a top view of the bearing hub of the present invention.
Fig. 13 is a bottom view of the bearing hub of the present invention.
Fig. 14 is a side-down perspective view of the bearing hub of the present invention.
Fig. 15 is a perspective view of the end cap of the present invention.
Fig. 16 is a cross-sectional view of an end cap of the present invention.
Shown in the figure: 1. a stent body; 2. a longitudinal beam mounting part; 3. a thrust rod mounting section; 4. a bearing hub mounting portion; 41. a keyway; 5. a beam mounting portion; 6. a bolt mounting hole; 61. a boss; 7. a support plate; 71. an arc-shaped groove; 8. reinforcing rib plates; 9. a cross-shaped reinforcing rib; 10. a first transverse stiffener; 11. reinforcing ribs; 12. an inverted L-shaped stiffener; 13. the reinforcing ribs are obliquely arranged; 14. a second transverse reinforcing rib; 15. longitudinal reinforcing ribs; 16. a balance shaft mounting portion; 161. reinforcing ribs; 162. an arc-shaped groove; 17. a rectangular base; 171. a plate spring center positioning hole; 18. a limit baffle; 19. a U-shaped bolt mounting portion; 191. the bolt passes through the hole; 20. a first reinforcing rib; 21. a first weight-reducing slot; 22. a second weight-reducing slot; 23. a second reinforcing rib; 100. a balance shaft support; 200. a bearing hub; 300. a bushing; 400. an end cap; 401. a groove; 402. an elastic locking plate; 403. a keyway; 500. and (4) bolts.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
The structure of the existing balance shaft assembly is shown in fig. 1: comprises a bracket 11 Half shaft 2 extending out of support1The semi-axis is sleeved with a bearing hub 31A lining 4 is arranged between the inner wall of the bearing hub and the half shaft1An inner thrust washer 5 is arranged on the half shaft between the bearing hub and the bracket1The outer side of the bearing hub is provided with an end cover 61An external thrust plate 7 is arranged between the end cover and the bearing hub1The end cover passes through the bolt 81Fixed on the half shaft and the bearing hub.
The utility model discloses as shown in fig. 2 and 16:
a light balance shaft assembly comprises a balance shaft bracket 100, a bearing hub 200 and a bush 300, wherein the balance shaft bracket comprises a Y-shaped bracket body 1, both sides of the upper part of the bracket body are provided with longitudinal beam mounting parts 2 with mounting holes, the lower part of the bracket body is provided with a thrust rod mounting part 3 with mounting holes, the middle of one side of the bracket body is provided with a hollow bearing hub mounting part 4 along the vertical direction, the other side of the bracket body is provided with a beam mounting part 5 with mounting holes, the bracket body is provided with bolt mounting holes 6 for fixing an end cover along the axial lead direction of the bearing hub mounting part, the bearing hub 200 and the bush 300 are fixed on the bearing hub mounting part 4 of the bracket through an end cover 400 by adopting bolts 500,
balance shaft support and bearing hub all have and adopt lightweight structure, wherein:
the balance shaft bracket 100 has a lightweight structure including:
the bracket body 1 adopts a thin-wall thick structure, a reinforcing rib edge 11 is arranged along the outer contour of the bracket body,
the beam mounting part 5 is a plate-shaped structure which extends out in the vertical direction and is provided with a weight reduction cavity in the middle, the bottoms of the two sides are connected through supporting plates 7, the positions close to the bracket body are in transition connection through arc-shaped grooves 71, the inner ends of the supporting plates are attached to the bracket body, the supporting plates on the two sides extend downwards from top to bottom, the distance between the supporting plates and the length between the outer ends of the supporting plates and the bracket body are gradually reduced, the supporting plates are connected into a whole through arc-shaped transition below the bolt mounting hole, and the two supporting plates above the bolt mounting hole are connected through reinforcing rib plates 8;
a boss 61 is arranged at the bolt mounting hole 6, the bolt mounting hole penetrates through the center of the boss, and the boss of the bolt mounting hole below the beam mounting part is connected with the reinforcing rib plate, the support plates at two sides and the arc transition part of the support plates through a cross reinforcing rib 9;
the lower parts of the supporting plates 7 on two sides are connected with the reinforcing rib edges of the outer contour of the adjacent bracket body through first transverse reinforcing ribs 10; the upper parts of the supporting plates at two sides are provided with inverted L-shaped reinforcing ribs 12, one ends of the inverted L-shaped reinforcing ribs are connected with the supporting plates, and the other ends of the inverted L-shaped reinforcing ribs are connected with the first transverse reinforcing ribs and the connecting parts of the reinforcing rib edges of the outer contour of the bracket body; wherein: an inclined reinforcing rib 13 is arranged between the bending part of the inverted L-shaped reinforcing rib and the longitudinal beam mounting part; the vertical section of the inverted L-shaped reinforcing rib is connected with the reinforcing rib edge of the outer contour of the bracket body through a second transverse reinforcing rib 14; the arc transition connecting parts at the lower parts of the supporting plates at the two sides are connected with the thrust rod mounting part at the lower part through the longitudinal reinforcing ribs 15;
the lightweight structure of the bearing hub 200 is:
comprises a balance shaft mounting part 16 in the middle, a rectangular seat 17 is arranged at the top of the balance shaft mounting part, the width of the rectangular seat is smaller than the axial length of the balance shaft mounting part and is matched with the inner space of the U-shaped bolt, limit baffles 18 are arranged at the front and the rear of the rectangular seat and are fixed at the front and the rear of the top of the balance shaft mounting part,
the two sides of the balance shaft mounting part below the two sides of the limiting baffle are respectively provided with a cylindrical U-shaped bolt mounting part 19, the U-shaped bolt mounting parts are attached to the balance shaft mounting part through transition connection, bolt through holes 191 are formed in the U-shaped bolt mounting parts, and the two U-shaped bolt mounting parts on the same side are connected through a first reinforcing rib 20;
first weight reduction grooves 21 are respectively formed between two sides of a plate spring central positioning hole 171 in the top surface of the rectangular seat 17 and the arc-shaped top surface of the balance shaft mounting part, and two second weight reduction grooves 22 are formed between the top of the limiting baffle and the arc-shaped top surface of the balance shaft mounting part.
The bearing hub mounting part of the balance shaft bracket extends from the middle part to the bracket body direction, the outer diameter is gradually increased, and the outer end of the bearing hub mounting part is axially provided with a key groove 41 for preventing the end cover from rotating; the balance shaft mounting part in the middle of the bearing hub has a structure that the middle is necked down and the bore diameter is gradually increased towards the extension of the two ends, and the bush 300 is two conical bushes and is arranged in a cavity between the bearing hub mounting part of the balance shaft bracket and the balance shaft mounting part in the middle of the bearing hub side by side. This kind of necking down die cavity structure reaches and sets up two with the bush, does not need lubricated medium, is superior to current staple bolt formula rubber bush to leaf spring axial spacing, and bearing capacity is also better a little, convenient dismantlement simultaneously, and cost of maintenance is low, efficient.
The end cover 400 inboard is equipped with the recess 401 that suits with the outer end of bearing hub installation department, extend to balance shaft support body direction along the recess periphery and be equipped with the elastic locking plate 402 that the external diameter reduces gradually and be outer cone structure, the middle chamber cartridge that the outer end of bearing hub installation department passed elastic locking plate is in the recess of end cover, elastic locking plate is wedge cartridge between bearing hub installation department and bush, be used for spacing bush and bearing hub, the equipartition has keyway 403 on the elastic locking plate, it is spacing with the outer end keyway cooperation of bearing hub installation department through the parallel key. The structure is convenient to install, maintain and disassemble.
The first lightening grooves 21 of the bearing hub extend from the middle of the rectangular seat to two sides and gradually reduce in width, and the second lightening grooves 22 extend from two sides of the limiting baffle to the middle and gradually reduce in width, so that strength is guaranteed while lightening.
The axial both ends of the balanced axle installation department 16 of bearing hub all are equipped with strengthening rib limit 161, and the outer peripheral face is the arc recess 162 that both ends are high, the centre is low, and the bottom surface axial of balanced axle installation department is equipped with second strengthening rib 23, and the second strengthening rib is laminated mutually with the bottom surface of balanced axle installation department, guarantees intensity when losing weight.
The balance shaft support and the bearing hub are of an integrally cast structure, so that the balance shaft support and the bearing hub are convenient to form, reduce connecting pieces and maintain, and can improve the surface quality and the overall quality and reduce the manufacturing cost.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a balanced axle assembly of lightweight, including the balance shaft support, the bearing hub, the bush, the balance shaft support includes Y type support body, the upper portion both sides of support body all are equipped with the longeron installation department of taking the mounting hole, the lower part is equipped with the distance rod installation department of taking the mounting hole, be equipped with hollow bearing hub installation department along the vertical direction in the middle of support body one side, the opposite side is equipped with the crossbeam installation department of taking the mounting hole, be equipped with the bolt mounting hole that is used for fixed end cover on the axial lead direction of support body edge bearing hub installation department, bearing hub and bush pass through the end cover and adopt the bolt fastening on the bearing hub installation department of support, its characterized in that: the balance shaft bracket and the bearing hub both adopt light weight structures,
the light-weight structure of the balance shaft support is as follows:
the bracket body adopts a thin-wall thick structure, a reinforcing rib edge is arranged along the outer contour of the bracket body,
the beam mounting part is of a plate-shaped structure which extends out in the vertical direction and is provided with a weight reduction cavity in the middle, the bottoms of the two sides are connected through support plates, the positions close to the bracket body are in transition connection through arc-shaped grooves, the inner ends of the support plates are attached to the bracket body, the support plates on the two sides extend downwards from top to bottom, the distance between the support plates and the length between the outer ends of the support plates and the bracket body are gradually reduced, the support plates are connected into a whole through arc-shaped transition below the bolt mounting hole, and the two support plates above the bolt mounting hole are connected through reinforcing rib plates;
the bolt mounting hole is provided with a boss, the bolt mounting hole penetrates through the center of the boss, and the boss of the bolt mounting hole, which is positioned below the beam mounting part, is connected with the reinforcing rib plate, the support plates on two sides and the arc-shaped transition part of the support plates through cross-shaped reinforcing ribs;
the lower parts of the supporting plates on two sides are connected with the reinforcing rib edges of the outer contour of the adjacent bracket body through first transverse reinforcing ribs; the upper parts of the supporting plates on the two sides are provided with inverted L-shaped reinforcing ribs, one ends of the inverted L-shaped reinforcing ribs are connected with the supporting plates, and the other ends of the inverted L-shaped reinforcing ribs are connected with the first transverse reinforcing ribs and the connecting parts of the reinforcing rib edges of the outer contour of the bracket body; wherein: an inclined reinforcing rib is arranged between the bending part of the inverted L-shaped reinforcing rib and the longitudinal beam mounting part; the vertical section of the inverted L-shaped reinforcing rib is connected with the reinforcing rib edge of the outer contour of the bracket body through a second transverse reinforcing rib; the arc transition connecting parts at the lower parts of the supporting plates at the two sides are connected with the thrust rod mounting part at the lower part through longitudinal reinforcing ribs;
the lightweight structure of bearing hub does:
comprises a balance shaft mounting part in the middle, a rectangular seat is arranged at the top of the balance shaft mounting part, the width of the rectangular seat is less than the axial length of the balance shaft mounting part and is matched with the inner space of the U-shaped bolt, limit baffles are arranged at the front and the back of the rectangular seat, the limit baffles are fixed at the front and the back of the top of the balance shaft mounting part,
the two sides of the balance shaft mounting part below the two sides of the limiting baffle are respectively provided with a cylindrical U-shaped bolt mounting part, the U-shaped bolt mounting parts are attached to the balance shaft mounting part through transition connection, bolt through holes are formed in the U-shaped bolt mounting parts, and the two U-shaped bolt mounting parts on the same side are connected through a first reinforcing rib;
first lightening grooves are respectively formed between two sides of a plate spring center positioning hole in the top surface of the rectangular seat and the arc-shaped top surface of the balance shaft mounting part, and two second lightening grooves are formed between the top of the limiting baffle and the arc-shaped top surface of the balance shaft mounting part.
2. The light-weight balance shaft assembly of claim 1, wherein: the bearing hub mounting part of the balance shaft support extends from the middle part to the direction of the support body, the outer diameter of the bearing hub mounting part is gradually increased, and a key groove for preventing the end cover from rotating is axially arranged at the outer end of the bearing hub mounting part; the balance shaft mounting part in the middle of the bearing hub is provided with a structure that the middle necking down and the hole diameter gradually increasing towards the two ends are extended, and the bushings are two conical bushings and are arranged in a cavity between the bearing hub mounting part of the balance shaft support and the balance shaft mounting part in the middle of the bearing hub side by side.
3. The light-weight balance shaft assembly of claim 2, wherein: the end cover inboard is equipped with the recess that suits with the outer end of bearing hub installation department, extend to balance shaft support body direction along the recess periphery and be equipped with the elastic locking plate that the external diameter reduces gradually and be outer cone structure, the middle chamber cartridge that the outer end of bearing hub installation department passed elastic locking plate is in the recess of end cover, elastic locking plate is wedge cartridge between bearing hub installation department and bush for spacing bush and bearing hub, the equipartition has the keyway on the elastic locking plate, it is spacing with the outer end keyway cooperation of bearing hub installation department through the parallel key.
4. A lightweight balance shaft assembly according to claim 1, 2 or 3 wherein: the first weight reduction grooves of the bearing hub extend from the middle of the rectangular seat to two sides and gradually reduce in width, and the second weight reduction grooves extend from two sides of the limiting baffle to the middle and gradually reduce in width.
5. The light-weight balance shaft assembly of claim 4, wherein: the axial both ends of the balanced axle installation department of bearing hub all are equipped with the strengthening rib limit, and the outer peripheral face is the recess that both ends are high, the centre is low, and the bottom surface axial of balanced axle installation department is equipped with the second strengthening rib, and the second strengthening rib is laminated with the bottom surface of balanced axle installation department mutually.
6. The light weight balance shaft assembly of claim 1 or 2 or 3 or 5 wherein: the balance shaft support and the bearing hub are of an integrally cast structure.
7. The light-weight balance shaft assembly of claim 4, wherein: the balance shaft support and the bearing hub are of an integrally cast structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120493762.5U CN214647353U (en) | 2021-03-09 | 2021-03-09 | Lightweight balance shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120493762.5U CN214647353U (en) | 2021-03-09 | 2021-03-09 | Lightweight balance shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214647353U true CN214647353U (en) | 2021-11-09 |
Family
ID=78451884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120493762.5U Active CN214647353U (en) | 2021-03-09 | 2021-03-09 | Lightweight balance shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214647353U (en) |
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2021
- 2021-03-09 CN CN202120493762.5U patent/CN214647353U/en active Active
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