CN112297836A - Electric automobile transmission shaft mounting structure - Google Patents
Electric automobile transmission shaft mounting structure Download PDFInfo
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- CN112297836A CN112297836A CN202011342763.6A CN202011342763A CN112297836A CN 112297836 A CN112297836 A CN 112297836A CN 202011342763 A CN202011342763 A CN 202011342763A CN 112297836 A CN112297836 A CN 112297836A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 8
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses an electric automobile transmission shaft mounting structure which comprises a middle bracket, an automobile beam and a fixing mechanism, wherein the fixing mechanism comprises a first fixing mechanism and a second fixing mechanism, the first fixing mechanism comprises a fixed groove, a driving shaft, a first screw rod, a first sliding block, a second rack plate and a first rack plate, the screw rod directions of the first fixing mechanism and the driving shaft are opposite, and the screw direction of the first fixing mechanism is opposite to that of the second fixing mechanism; the fixing mechanism II comprises a storage cylinder body, a screw rod II, two fixing shafts, two fixing plates, two gears, a loop bar and a slide block II, strip-shaped windows matched with the fixing plates are formed in the left side and the right side of the storage cylinder body along the length direction of the storage cylinder body, and a guide hole matched with the storage cylinder body is formed in the central position of the bottom end of the automobile beam.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a transmission shaft mounting structure of an electric automobile.
Background
The transmission shaft is a high-speed, low-bearing rotating body, so that the dynamic balance of the transmission shaft is crucial. The dynamic balance test is carried out on a general transmission shaft before leaving a factory, and the transmission shaft is adjusted on a balancing machine. In the case of a front engine rear wheel drive vehicle, the transmission is arranged to transmit the rotation of the transmission to the shaft of the final drive, and the transmission can be provided with a plurality of joints, and the joints can be connected through universal joints. The transmission shaft is an important part for transmitting power in an automobile transmission system, and the transmission shaft, a gearbox and a drive axle are used for transmitting the power of an engine to wheels so that an automobile generates driving force.
The existing method for installing the middle support of the transmission shaft of the automobile generally welds two support seats on a bottom plate, but the middle support is installed on the two support seats, and the installation method has the following problems, for example: the support is relatively long in length, and occupies a large transverse space of the automobile bottom plate.
Chinese patent application publication No. CN 105383288A discloses "an installation bracket for an automobile transmission shaft intermediate support", which solves the problem that the support length is relatively long, and occupies a large transverse space of an automobile bottom plate, but the problem that the installation bracket occupies a large longitudinal space of the automobile bottom plate is also existed in this patent.
Disclosure of Invention
The present invention is directed to a transmission shaft mounting structure of an electric vehicle to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a transmission shaft mounting structure of an electric automobile comprises a middle support, an automobile beam and a fixing mechanism, wherein the middle support of a transmission shaft is mounted on the automobile beam through the fixing mechanism, the fixing mechanism comprises a first fixing mechanism and a second fixing mechanism, the first fixing mechanism comprises a fixing groove formed in the middle support in the horizontal direction, a driving shaft connected in the fixing groove in a horizontally rotating mode, two first lead screws fixed at the left end and the right end of the driving shaft and opposite in thread direction, first sliding blocks connected to the two first lead screws in a sliding mode respectively, second rack plates vertically fixed on the two first sliding blocks, and first rack plates fixed on the left outer side wall and the right outer side wall of the automobile beam respectively and matched with the two first rack plates; the second fixing mechanism comprises a second accommodating cylinder fixed at the upper end of the middle bracket and vertical to the middle bracket, a second screw rod which is vertical to the middle bracket and is rotatably connected in the second accommodating cylinder, two fixing shafts which are rotatably connected below the inner part of the second accommodating cylinder along the horizontal direction and are bilaterally symmetrical relative to the second screw rod, fixing plates which are respectively fixed on the two fixing shafts, two gears which are respectively fixed on the end parts of the two fixing shafts, a sleeve rod which is sleeved on the second screw rod and is mutually meshed and connected with the two gears, and a second sliding block which is fixed at the bottom end of the sleeve rod and is matched with the second screw rod, wherein the top end of the second screw rod extends to the, and the left and right sides of the containing cylinder body are provided with strip-shaped windows matched with the fixing plates along the length direction, a guide hole matched with the containing barrel is formed in the center of the bottom end of the automobile beam;
the free end of fixed plate all is equipped with straining device, and straining device includes the recess, through tensioning spring sliding connection in the dead lever of recess and be located the recess outside and with the tensioning piece of dead lever connection, the tensioning piece is made by the rubber material.
Preferably, a hand wheel is fixed on the driving shaft, and an operation window matched with the hand wheel is formed in the side wall of the middle support.
Preferably, a second guide rod parallel to the first screw rod is fixed at the left end and the right end of the middle support and below the first screw rod, and a guide sliding block connected with the second guide rod in a sliding manner is fixed at the bottom end of each first sliding block.
Preferably, a rubber pad is fixed at the upper end of the middle bracket.
Preferably, the bottom end of the storage cylinder body is vertically fixed with two first guide rods which are bilaterally symmetrical relative to the second screw rod, and the left side and the right side of the second sliding block are provided with through holes matched with the first guide rods.
Preferably, each fixing plate is far away from one side of the second screw rod and is provided with support rods at equal intervals along the length direction of the fixing plate, and when the fixing plate rotates 90 degrees from a vertical position to a horizontal position, the support rods distributed on the fixing plate are in contact with the bottom end of the automobile cross beam.
Compared with the prior art, the invention has the beneficial effects that:
(1) in the invention, the fixing mechanism comprises a first fixing mechanism and a second fixing mechanism, the first fixing mechanism comprises a fixing groove which is arranged on the middle bracket along the horizontal direction, a driving shaft which is horizontally and rotatably connected in the fixing groove, two first screw rods which are fixed at the left end and the right end of the driving shaft and have opposite thread directions, a first sliding block which is respectively and slidably connected with the two first screw rods, a second rack plate which is vertically fixed on the two first sliding blocks, and a first rack plate which is respectively fixed on the left outer side wall and the right outer side wall of the automobile beam and is matched with the second rack plate, during installation, a hand wheel is rotated to drive the driving shaft to rotate, the first screw rods at the two ends of the driving shaft are driven to rotate by the driving shaft while rotating, so that the sliding blocks on the first screw rods are close to the two side walls of, through the mutual cooperation of the first rack plate and the second rack plate, the middle bracket is prevented from moving in the longitudinal direction in the running process.
(2) In the invention, the second fixing mechanism comprises a containing cylinder body which is fixed at the upper end of the middle bracket and is vertical to the middle bracket, a second screw rod which is vertical to the middle bracket and is rotatably connected in the containing cylinder body, two fixing shafts which are rotatably connected at the lower part of the inner part of the containing cylinder body along the horizontal direction and are bilaterally symmetrical relative to the second screw rod, fixing plates which are respectively fixed on the two fixing shafts, two gears which are respectively fixed on the end parts of the two fixing shafts, a sleeve rod which is sleeved on the second screw rod and is mutually meshed with the two gears, and a second sliding block which is fixed at the bottom end of the sleeve rod and is matched with the second screw rod, wherein the top end of the second screw rod extends to the outer part of the top end of the containing cylinder body and is fixed with a handle, strip-shaped windows which are matched with the, The containing cylinder body penetrates through a guide hole on the automobile beam during installation, the upper end of the middle support is in contact with the bottom end of the automobile beam, a handle on the top end of the containing cylinder body is rotated to drive the screw rod to rotate, the slide block II drives the sleeve rod to move vertically and upwards along the screw rod II under the guiding action of the guide rod I, the sleeve rod drives the two gears to rotate oppositely in the ascending process, the two fixing plates are driven to rotate from the vertical state to the horizontal state, the free ends of the two fixing plates are tightly attached to the left side wall and the right side wall of the automobile beam under the action of the tensioning mechanism, meanwhile, the supporting rods on the two fixing plates are attached to the bottom end of the automobile beam, so that the middle support is fixed on the automobile beam, and the containing cylinder body is fixed by enough friction force between the tensioning block and the automobile beam, in the driving process, the middle bracket is prevented from swinging left and right.
(3) According to the locking device for the middle support, the middle support is locked in the longitudinal direction and the transverse direction simultaneously under the matching of the first fixing mechanism and the second fixing mechanism, and the middle support is prevented from deviating in the driving process, so that the stability and the reliability of the integral installation are improved.
To sum up, the top of middle support is laminated completely with the bottom of automobile crossbeam for whole fixed establishment is less for prior art, and it is less to occupy the space of vehicle floor, easy to assemble and dismantlement moreover, thereby is convenient for maintain, has also improved the stability and the reliability of integral erection.
Drawings
FIG. 1 is a schematic view of the structural installation of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the figure: 1. a middle support; 2. fixing grooves; 3. a drive shaft; 4. a hand wheel; 5. a first screw rod; 6. a first sliding block; 7. a guide hole; 8. a storage cylinder; 9. a second screw rod; 10. a loop bar; 11. a fixed shaft; 12. a fixing plate; 13. a gear; 14. a cross car beam; 15. a strip-shaped window; 16. a second sliding block; 17. a support bar; 18. a first rack plate; 19. a second rack plate; 20. a drive shaft; 21. a rubber pad; 22. a first guide rod; 23. a second guide rod; 24. a guide slider; 25. a groove; 26. tensioning the spring; 27. fixing the rod; 28. and a tensioning block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an embodiment of the present invention is shown: a transmission shaft mounting structure of an electric automobile comprises a middle support 1, an automobile beam 14 and a fixing mechanism, wherein the middle support 1 of a transmission shaft 20 is mounted on the automobile beam 14 through the fixing mechanism, the fixing mechanism comprises a first fixing mechanism and a second fixing mechanism, the first fixing mechanism comprises a fixing groove 2 which is formed in the middle support 1 along the horizontal direction, a driving shaft 3 which is horizontally and rotatably connected into the fixing groove 2, two first lead screws 5 which are fixed at the left end and the right end of the driving shaft 3 and have opposite thread directions, first sliders 6 which are respectively and slidably connected onto the two first lead screws 5, a second rack plate 19 which is vertically fixed onto the two first sliders 6, and a first rack plate 18 which is respectively fixed on the left outer side wall and the right outer side wall of the automobile beam 14 and is matched with the; the second fixing mechanism comprises a containing cylinder body 8 which is fixed at the upper end of the middle bracket 1 and is vertical to the middle bracket 1, a second screw rod 9 which is vertical to the middle bracket 1 and is rotatably connected in the containing cylinder body 8, two fixing shafts 11 which are rotatably connected to the lower part in the containing cylinder body 8 along the horizontal direction and are bilaterally symmetrical relative to the second screw rod 9, fixing plates 12 which are respectively fixed on the two fixing shafts 11, two gears 13 which are respectively fixed on the end parts of the two fixing shafts 11, a sleeve rod 10 which is sleeved on the second screw rod 9 and is mutually meshed and connected with the two gears 13, and a second slide block 16 which is fixed at the bottom end of the sleeve rod 10 and is matched with the second screw rod 9, wherein the top end of the second screw rod 9, and the left and right sides of the containing cylinder body 8 are provided with strip-shaped windows 15 along the length direction thereof, which are matched with the fixing plate 12, a guide hole 7 matched with the containing cylinder 8 is formed in the center of the bottom end of the automobile beam 14;
the free end of fixed plate 12 all is equipped with straining device, and straining device includes recess 25, through tensioning spring 26 sliding connection dead lever 27 in recess 25 and be located recess 25 outside and the tensioning piece 28 of being connected with dead lever 27, tensioning piece 28 is made by the rubber material, under straining device's effect for tensioning piece 28 on the fixed plate 12 free end closely laminates with the lateral wall of automobile crossbeam 14, makes and has enough big frictional force to fix storage cylinder body 8 between tensioning piece 28 and the automobile crossbeam 14, and in the driving process, prevents that middle support 1 from taking place the horizontal hunting, thereby improves the stability of middle support 1.
In this embodiment, be fixed with hand wheel 4 on the drive shaft 3, and the lateral wall of intermediate strut 1 sets up the operation window of 4 looks adaptations of hand wheel, and the manual hand wheel 4 of rotation of installer is conveniently driven the drive shaft 3 rotation.
In this embodiment, both ends all are fixed with two guide bar 23 parallel with a 5 lead screw about the intermediate strut 1 and lie in the below of a 5 lead screw, and the bottom of every slider 6 all is fixed with the guide slider 24 with two 23 sliding connection of guide bar, plays the effect of direction, guarantees that slider 6 drives two 19 and moves about in the horizontal direction along a 5 lead screw of rack board.
In this embodiment, a rubber pad 21 is fixed to the upper end of the middle bracket 1.
In this embodiment, the bottom end of the storage cylinder 8 is vertically fixed with two first guide rods 22 which are bilaterally symmetrical with respect to the second screw rod 9, and the left and right sides of the second slider 16 are provided with through holes matched with the first guide rods 22 to play a role in guiding, so that the second slider 16 is ensured to drive the loop bar 10 to vertically move up and down along the second screw rod 9.
In the embodiment, the side of each fixing plate 12 far away from the second screw 9 is provided with support rods 17 at equal intervals along the length direction of the fixing plate 12, and when the fixing plate 12 rotates 90 degrees from the vertical position to the horizontal position, the support rods 17 distributed on the fixing plate 12 are in contact with the bottom end of the automobile cross beam 14.
The installation process comprises the following steps:
firstly, as shown in fig. 1, a transmission shaft 20 of an electric automobile is installed on a middle bracket 1;
step two, enabling the storage cylinder 8 to penetrate through a guide hole 7 in the automobile cross beam 14, and enabling the upper end of the middle support 1 to be in contact with the bottom end of the automobile cross beam 14;
step three, rotating a handle on the top end of the containing cylinder 8 to drive the second screw rod 9 to rotate, enabling the second slide block 16 to drive the loop bar 10 to vertically move upwards along the second screw rod 9 under the guiding action of the first guide rod 22, as shown in fig. 1 and fig. 2, during the ascending process of the loop bar 10, the two gears 13 are driven to rotate oppositely, and further the two fixing plates 12 are driven to rotate from the vertical state to the horizontal state, under the action of the tensioning mechanism, the free ends of the two fixing plates 12 are tightly attached to the left side wall and the right side wall of the automobile cross beam 14, meanwhile, the support rods 17 on the two fixed plates 12 are attached to the bottom end of the automobile cross beam 14, thereby fixing the intermediate bracket 1 to the cross member 14, and providing a sufficient frictional force between the tension block 28 and the cross member 14 to fix the receiver cylinder 8, in the driving process, the middle bracket 1 is prevented from swinging left and right, so that the stability of the middle bracket 1 is improved;
and step four, in order to improve the mounting stability of the middle support 1 and the automobile crossbeam 14, the hand wheel 4 is rotated again to drive the driving shaft 3 to rotate, the driving shaft 3 drives the screw rods 5 at the two ends of the driving shaft to rotate so that the sliding blocks 6 on the two screw rods 5 approach to the two side walls of the automobile crossbeam 14 until the two rack plates 19 on the two sliding blocks 6 are meshed with the rack plates 18 on the left side wall and the right side wall of the automobile crossbeam 14, and the middle support 1 is prevented from moving in the longitudinal direction in the driving process through the mutual matching of the rack plates 18 and the rack plates 19, so that the mounting reliability of the middle support 1 and the automobile crossbeam 14 is further improved (wherein the sequence of the step four and the step three can be changed).
In conclusion, because the top end of the middle support 1 is completely attached to the bottom end of the automobile cross beam 14, the whole fixing mechanism occupies a smaller space of an automobile bottom plate compared with the prior art, and the middle support 1 is simultaneously locked longitudinally and transversely under the matching of the first fixing mechanism and the second fixing mechanism, so that the middle support 1 is prevented from deviating in the driving process, the stability and the reliability of integral installation are improved, and meanwhile, the middle support is convenient to install and disassemble, and is convenient to maintain.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides an electric automobile transmission shaft mounting structure, includes middle support (1), car crossbeam (14) and fixed establishment, the middle support (1) of transmission shaft (20) is installed on car crossbeam (14) through fixed establishment, its characterized in that: the fixing mechanism comprises a first fixing mechanism and a second fixing mechanism, the first fixing mechanism comprises a fixing groove (2) which is formed in the middle support (1) along the horizontal direction, a driving shaft (3) which is horizontally and rotatably connected into the fixing groove (2), two first lead screws (5) which are fixed at the left end and the right end of the driving shaft (3) and have opposite thread directions, first sliding blocks (6) which are respectively and slidably connected onto the two first lead screws (5), second rack plates (19) which are vertically fixed onto the two first sliding blocks (6), and first rack plates (18) which are respectively fixed onto the left outer side wall and the right outer side wall of the automobile beam (14) and are matched with the second rack plates (19); the second fixing mechanism comprises a second screw rod (9) which is fixed at the upper end of the middle support (1) and is perpendicular to the storage cylinder body (8), a second screw rod (9) which is perpendicular to the middle support (1) and is rotatably connected into the storage cylinder body (8), two fixing shafts (11) which are connected to the lower portion of the interior of the storage cylinder body (8) in a rotating mode along the horizontal direction and are bilaterally symmetrical about the second screw rod (9), fixing plates (12) which are fixed onto the two fixing shafts (11), two gears (13) which are fixed onto the end portions of the two fixing shafts (11) respectively, a sleeve rod (10) which is sleeved on the second screw rod (9) and is connected with the two gears (13) in an meshed mode, and a second sliding block (16) which is fixed to the bottom end of the sleeve rod (10) and is matched with the second screw rod (9), the top end of the second screw rod (9) extends to the outside of the top end of the storage cylinder body (8) and the center of the bottom end of the automobile beam (14) is provided with a guide hole (7) matched with the containing cylinder (8);
the free end of fixed plate (12) all is equipped with straining device, and straining device includes recess (25), through dead lever (27) of tensioning spring (26) sliding connection in recess (25) and be located recess (25) outside and tensioning block (28) of being connected with dead lever (27), tensioning block (28) are made by the rubber material.
2. The electric vehicle drive shaft mounting structure according to claim 1, characterized in that: a hand wheel (4) is fixed on the driving shaft (3), and an operation window matched with the hand wheel (4) is formed in the side wall of the middle support (1).
3. The electric vehicle drive shaft mounting structure according to claim 1, characterized in that: and a second guide rod (23) parallel to the first screw rod (5) is fixed at the left end and the right end of the middle bracket (1) and below the first screw rod (5), and a guide slide block (24) in sliding connection with the second guide rod (23) is fixed at the bottom end of each first slide block (6).
4. The electric vehicle drive shaft mounting structure according to claim 1, characterized in that: and a rubber pad (21) is fixed at the upper end of the middle bracket (1).
5. The electric vehicle drive shaft mounting structure according to claim 1, characterized in that: two guide rods I (22) which are bilaterally symmetrical relative to the screw rod II (9) are vertically fixed at the bottom end of the storage cylinder body (8), and through holes matched with the guide rods I (22) are formed in the left side and the right side of the sliding block II (16).
6. The electric vehicle drive shaft mounting structure according to claim 1, characterized in that: and supporting rods (17) are respectively arranged on one side, far away from the second screw rod (9), of each fixing plate (12) at equal intervals along the length direction of the fixing plate (12), and when the fixing plates (12) rotate by 90 degrees from the vertical position to the horizontal position, the supporting rods (17) distributed on the fixing plates (12) are in contact with the bottom end of the automobile cross beam (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011342763.6A CN112297836B (en) | 2020-11-26 | 2020-11-26 | Electric automobile transmission shaft mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011342763.6A CN112297836B (en) | 2020-11-26 | 2020-11-26 | Electric automobile transmission shaft mounting structure |
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| Publication Number | Publication Date |
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| CN112297836A true CN112297836A (en) | 2021-02-02 |
| CN112297836B CN112297836B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011342763.6A Active CN112297836B (en) | 2020-11-26 | 2020-11-26 | Electric automobile transmission shaft mounting structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070069513A1 (en) * | 2005-09-15 | 2007-03-29 | Honda Motor Co, Ltd. | Steering device for vehicle |
| US20080021620A1 (en) * | 2004-12-20 | 2008-01-24 | Volvo Lastvagnar Ab | Control of Driveline Geometry |
| CN103448542A (en) * | 2013-09-12 | 2013-12-18 | 重庆长安汽车股份有限公司 | Automobile transmission shaft supporting structure |
| CN105383288A (en) * | 2015-12-08 | 2016-03-09 | 南京金龙新能源汽车研究院有限公司 | Mounting frame of automobile transmission shaft intermediate support |
| CN207617512U (en) * | 2017-11-23 | 2018-07-17 | 上汽通用五菱汽车股份有限公司 | A kind of preceding floor transmission shaft mounting assembly |
| CN208306374U (en) * | 2018-05-29 | 2019-01-01 | 李炳贤 | A kind of mounting bracket of truck drive shaft |
-
2020
- 2020-11-26 CN CN202011342763.6A patent/CN112297836B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080021620A1 (en) * | 2004-12-20 | 2008-01-24 | Volvo Lastvagnar Ab | Control of Driveline Geometry |
| US20070069513A1 (en) * | 2005-09-15 | 2007-03-29 | Honda Motor Co, Ltd. | Steering device for vehicle |
| CN103448542A (en) * | 2013-09-12 | 2013-12-18 | 重庆长安汽车股份有限公司 | Automobile transmission shaft supporting structure |
| CN105383288A (en) * | 2015-12-08 | 2016-03-09 | 南京金龙新能源汽车研究院有限公司 | Mounting frame of automobile transmission shaft intermediate support |
| CN207617512U (en) * | 2017-11-23 | 2018-07-17 | 上汽通用五菱汽车股份有限公司 | A kind of preceding floor transmission shaft mounting assembly |
| CN208306374U (en) * | 2018-05-29 | 2019-01-01 | 李炳贤 | A kind of mounting bracket of truck drive shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112297836B (en) | 2021-07-30 |
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Effective date of registration: 20240416 Address after: 234200 fengmiao street, Lingbi County, Suzhou City, Anhui Province Patentee after: Anhui Jinfeng Machinery Co.,Ltd. Country or region after: China Address before: 211168 No. 180, long Mian Road, Jiangning District, Nanjing, Jiangsu. Patentee before: JIANGSU INSTITUTE OF ECONOMIC & TRADE TECHNOLOGY Country or region before: China |