CN108454373B - V-shaped suspension assembly structure - Google Patents
V-shaped suspension assembly structure Download PDFInfo
- Publication number
- CN108454373B CN108454373B CN201810359917.9A CN201810359917A CN108454373B CN 108454373 B CN108454373 B CN 108454373B CN 201810359917 A CN201810359917 A CN 201810359917A CN 108454373 B CN108454373 B CN 108454373B
- Authority
- CN
- China
- Prior art keywords
- cushion
- supporting seat
- suspension
- shaped groove
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 56
- 239000002184 metal Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The V-shaped suspension assembly structure comprises a supporting seat and a suspension cushion, wherein the suspension cushion is arranged in the supporting seat; the top of the suspension cushion is provided with an upper bracket, the upper bracket is in limit fit with the supporting seat through at least two limit bolts, and the limit bolts sequentially penetrate through the upper bracket, the suspension cushion, the supporting seat and the rubber cushion block and then are in threaded connection with the positioning nuts; the novel rubber cushion is characterized in that a V-shaped groove is formed in one side of the supporting seat, the suspension cushion is arranged in the V-shaped groove, a locking groove is formed in the other side of the supporting seat, and the rubber cushion block and the positioning nut are arranged in the locking groove. The design has the advantages that the suspended soft cushion is stable in stress and high in reliability, upward stress can be effectively buffered, and the shock absorption effect is optimized.
Description
Technical Field
The utility model relates to a suspension structure, in particular to a V-shaped suspension assembly structure, which is particularly suitable for prolonging the service life of suspension rubber.
Background
The large-power engine of the truck has large volume and large mass, and a suspension bracket is often required to be arranged for supporting. In order to improve the comfort of a certain vehicle, the rigidity of the engine suspension cushion assembly is adjusted, and the rigidity in the vertical direction is reduced. However, the rigidity of the existing cushion assembly in all directions is in a certain proportion relation, and after the rigidity of the cushion assembly in the vertical direction is reduced, the transverse rigidity of the cushion assembly is reduced, so that the power assembly is larger in transverse displacement in the whole vehicle operation, and the service life of the cushion is shortened due to severe shearing force; meanwhile, as the transverse rigidity is reduced, the natural frequency of the engine suspension system in the transverse direction is reduced and is close to the natural frequency of the automobile suspension, so that the engine suspension system is not beneficial to isolating vibration from the automobile suspension.
The utility model patent with publication number CN 204077341U and publication date 2015 of 1 month and 7 discloses an engine rear suspension cushion assembly, which comprises a semi-enclosed cushion supporting seat and a V-shaped bracket arranged in the semi-enclosed cushion supporting seat, wherein the semi-enclosed cushion supporting seat comprises a coaming and a backboard which are connected with each other, and the V-shaped bracket is in limit fit with the interior of the coaming through a surrounding cushion assembly sleeved on the peripheral surface of the V-shaped bracket; at least three rubber cushions are arranged between the back of the V-shaped support and the backboard, and the rubber cushions and the V-shaped support are vulcanized into a whole. While this utility model adjusts the natural frequency of the cushion assembly, it still suffers from the following drawbacks:
the suspension cushion is in a stretched state under the limit working condition, so that the rubber cushion is easy to tear, and the damping performance of the cushion is affected.
Disclosure of Invention
The utility model aims to solve the problem that rubber stretching in the prior art affects the damping effect, and provides a V-shaped suspension assembly structure damping by using a compacting mode.
In order to achieve the above object, the technical solution of the present utility model is:
the V-shaped suspension assembly structure comprises a supporting seat and a suspension cushion, wherein the suspension cushion is arranged in the supporting seat;
the top of the suspension cushion is provided with an upper bracket, the upper bracket is in limit fit with the supporting seat through at least two limit bolts, and the limit bolts sequentially penetrate through the upper bracket, the suspension cushion, the supporting seat and the rubber cushion block and then are in threaded connection with the positioning nuts;
the novel rubber cushion is characterized in that a V-shaped groove is formed in one side of the supporting seat, the suspension cushion is arranged in the V-shaped groove, a locking groove is formed in the other side of the supporting seat, and the rubber cushion block and the positioning nut are arranged in the locking groove.
A V-shaped groove is formed in one side of the supporting seat, a limiting step is arranged at the back of the V-shaped groove, a locking groove is formed below the limiting step, and a fixing through hole is formed in the top surface of the limiting step;
the suspension cushion comprises a triangular limit cushion and a trapezoidal fixing cushion which are integrally structured, and fixing holes are formed in the trapezoidal fixing cushion;
the triangular limiting pad is arranged in the V-shaped groove, inclined planes at two sides of the V-shaped groove are in limiting fit with the inclined planes at the bottom of the triangular limiting pad, the bottom surface of the trapezoidal fixing pad 22 is in contact with the top surface of the limiting step 13, and the fixing hole and the fixing through hole are correspondingly arranged.
The bottom surface of upper bracket is provided with the platform that compresses tightly, compress tightly the top surface press fit of platform and triangle-shaped spacing pad.
The rubber cushion block is a rectangular rubber block, at least two rubber fixing holes are formed in the rubber cushion block, and the thickness of the rubber cushion block is greater than or equal to 15 mm;
the positioning nut is a rectangular metal block, and at least two threaded holes are formed in the positioning nut.
And the limit bolt is sequentially connected with the positioning nut and the locknut in a threaded manner.
The included angle formed by the inclined planes at the two sides of the V-shaped groove is equal to the angle of the sharp corner at the bottom of the triangular limiting pad 21, and the included angle formed by the inclined planes at the two sides of the V-shaped groove is 45-75 degrees.
The included angle formed by the inclined planes at the two sides of the V-shaped groove is 60 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
1. the limit pad in the V-shaped suspension assembly structure is triangular, so that the gravity vertically downwards is effectively decomposed, and the reliability of suspension is improved. Therefore, the suspension cushion of the design is stable in stress and high in reliability.
2. The structure of the rubber cushion block in the V-shaped suspension assembly structure can effectively buffer upward tensile force borne by the upper bracket, so that effective shock absorption is realized, and the service life of the rubber cushion pad is prolonged. Therefore, the design can effectively buffer upward stress and optimize the damping effect.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a side cross-sectional view of fig. 1.
Fig. 3 is a schematic structural view of the support base in fig. 2.
Fig. 4 is a schematic view of the structure of the suspended cushion of fig. 2.
Fig. 5 is a schematic view of the structure of the upper bracket in fig. 2.
Fig. 6 is a schematic view of the rubber cushion block of fig. 2.
Fig. 7 is a schematic view of the construction of the positioning nut of fig. 2.
In the figure: the support seat 1, the V-shaped groove 11, the locking groove 12, the limiting step 13, the fixing through hole 14, the suspension cushion 2, the triangular limiting cushion 21, the trapezoidal fixing cushion 22, the fixing hole 23, the upper bracket 3, the compression table 31, the limiting bolt 4, the rubber cushion block 5, the rubber fixing hole 51, the positioning nut 6, the threaded hole 61 and the locknut 7.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 7, a V-shaped suspension assembly structure includes a support base 1 and a suspension cushion 2, wherein the suspension cushion 2 is disposed in the support base 1;
the top of the suspension cushion 2 is provided with an upper bracket 3, the upper bracket 3 is in limit fit with the supporting seat 1 through at least two limit bolts 4, and the limit bolts 4 sequentially penetrate through the upper bracket 3, the suspension cushion 2, the supporting seat 1 and the rubber cushion block 5 and then are in threaded connection with the positioning nuts 6;
one side of supporting seat 1 is provided with V type groove 11, suspension cushion 2 sets up in V type groove 11, the opposite side of supporting seat 1 is provided with locking groove 12, rubber cushion 5 and positioning nut 6 all set up in locking groove 12.
A V-shaped groove 11 is formed in one side of the supporting seat 1, a limit step 13 is formed in the back of the V-shaped groove 11, a locking groove 12 is formed below the limit step 13, and a fixing through hole 14 is formed in the top surface of the limit step 13;
the suspension cushion 2 comprises a triangular limit pad 21 and a trapezoidal fixing pad 22 which are integrally structured, and fixing holes 23 are formed in the trapezoidal fixing pad 22;
the triangular limiting pad 21 is arranged in the V-shaped groove 11, two side inclined planes of the V-shaped groove 11 are in limiting fit with the inclined planes of the bottom of the triangular limiting pad 21, the bottom surface of the trapezoidal fixing pad 22 is in contact with the top surface of the limiting step 13, and the fixing hole 23 is arranged corresponding to the fixing through hole 14.
The bottom surface of the upper bracket 3 is provided with a pressing table 31, and the pressing table 31 is in pressing fit with the top surface of the triangular limiting pad 21.
The rubber cushion block 5 is a rectangular rubber block, at least two rubber fixing holes 51 are formed in the rubber cushion block 5, and the thickness of the rubber cushion block 5 is greater than or equal to 15 mm;
the positioning nut 6 is a rectangular metal block, and at least two threaded holes 61 are formed in the positioning nut 6.
The limit bolt 4 is sequentially connected with the positioning nut 6 and the locknut 7 in a threaded manner.
The included angle formed by the inclined planes at the two sides of the V-shaped groove 11 is equal to the angle of the sharp corner at the bottom of the triangular limiting pad 21, and the included angle formed by the inclined planes at the two sides of the V-shaped groove 11 is 45-75 degrees.
The included angle formed by the inclined planes at the two sides of the V-shaped groove 11 is 60 degrees.
The principle of the utility model is explained as follows:
the included angle formed by the inclined planes on the two sides of the V-shaped groove 11 is equal to the angle of the sharp corner at the bottom of the triangular limiting pad 21, the inclined planes on the two sides of the V-shaped groove 11 are in limiting fit with the inclined planes at the bottom of the triangular limiting pad 21, and the design effectively optimizes the stress of the triangular limiting pad 21 and facilitates vibration and noise reduction.
Example 1:
the V-shaped suspension assembly structure comprises a supporting seat 1 and a suspension cushion 2, wherein the suspension cushion 2 is arranged in the supporting seat 1; the top of the suspension cushion 2 is provided with an upper bracket 3, the upper bracket 3 is in limit fit with the supporting seat 1 through at least two limit bolts 4, and the limit bolts 4 sequentially penetrate through the upper bracket 3, the suspension cushion 2, the supporting seat 1 and the rubber cushion block 5 and then are in threaded connection with the positioning nuts 6; one side of the supporting seat 1 is provided with a V-shaped groove 11, the suspension cushion 2 is arranged in the V-shaped groove 11, the other side of the supporting seat 1 is provided with a locking groove 12, and the rubber cushion block 5 and the positioning nut 6 are both arranged in the locking groove 12; a V-shaped groove 11 is formed in one side of the supporting seat 1, a limit step 13 is formed in the back of the V-shaped groove 11, a locking groove 12 is formed below the limit step 13, and a fixing through hole 14 is formed in the top surface of the limit step 13; the suspension cushion 2 comprises a triangular limit pad 21 and a trapezoidal fixing pad 22 which are integrally structured, and fixing holes 23 are formed in the trapezoidal fixing pad 22; the triangular limiting pad 21 is arranged in the V-shaped groove 11, inclined planes at two sides of the V-shaped groove 11 are in limiting fit with the inclined plane at the bottom of the triangular limiting pad 21, the bottom surface of the trapezoidal fixing pad 22 is contacted with the top surface of the limiting step 13, and the fixing hole 23 is correspondingly arranged with the fixing through hole 14; a pressing table 31 is arranged on the bottom surface of the upper bracket 3, and the pressing table 31 is in pressing fit with the top surface of the triangular limiting pad 21; the rubber cushion block 5 is a rectangular rubber block, at least two rubber fixing holes 51 are formed in the rubber cushion block 5, and the thickness of the rubber cushion block 5 is greater than or equal to 15 mm; the positioning nut 6 is a rectangular metal block, and at least two threaded holes 61 are formed in the positioning nut 6.
Example 2:
example 2 is substantially the same as example 1 except that:
the included angle formed by the inclined planes at the two sides of the V-shaped groove 11 is equal to the angle of the sharp corner at the bottom of the triangular limiting pad 21, and the included angle formed by the inclined planes at the two sides of the V-shaped groove 11 is 45-75 degrees.
Example 3:
example 3 is substantially the same as example 2 except that:
the limit bolt 4 is sequentially connected with the positioning nut 6 and the locknut 7 through threads; the included angle formed by the inclined planes at the two sides of the V-shaped groove 11 is 60 degrees.
Claims (4)
1. The utility model provides a V type suspension assembly structure, includes supporting seat (1) and suspension cushion (2), suspension cushion (2) set up in supporting seat (1), its characterized in that:
the top of the suspension cushion (2) is provided with an upper bracket (3), the upper bracket (3) is in limit fit with the supporting seat (1) through at least two limit bolts (4), and the limit bolts (4) sequentially penetrate through the upper bracket (3), the suspension cushion (2), the supporting seat (1) and the rubber cushion block (5) and then are in threaded connection with the positioning nuts (6);
one side of the supporting seat (1) is provided with a V-shaped groove (11), the suspension cushion (2) is arranged in the V-shaped groove (11), the other side of the supporting seat (1) is provided with a locking groove (12), and the rubber cushion block (5) and the positioning nut (6) are arranged in the locking groove (12);
a V-shaped groove (11) is formed in one side of the supporting seat (1), a limiting step (13) is formed in the back of the V-shaped groove (11), a locking groove (12) is formed below the limiting step (13), and a fixing through hole (14) is formed in the top surface of the limiting step (13);
the suspension cushion (2) comprises a triangular limit cushion (21) and a trapezoidal fixed cushion (22) which are integrally structured, and a fixed hole (23) is formed in the trapezoidal fixed cushion (22);
the triangular limiting pad (21) is arranged in the V-shaped groove (11), inclined planes on two sides of the V-shaped groove (11) are in limiting fit with inclined planes at the bottom of the triangular limiting pad (21), the bottom surface of the trapezoidal fixing pad (22) is contacted with the top surface of the limiting step (13), and the fixing hole (23) is correspondingly arranged with the fixing through hole (14);
the rubber cushion block (5) is a rectangular rubber block, at least two rubber fixing holes (51) are formed in the rubber cushion block (5), and the thickness of the rubber cushion block (5) is greater than or equal to 15 mm;
the positioning nut (6) is a rectangular metal block, and at least two threaded holes (61) are formed in the positioning nut (6);
the included angle formed by the inclined planes at the two sides of the V-shaped groove (11) is equal to the angle of the sharp corner at the bottom of the triangular limiting pad (21), and the included angle formed by the inclined planes at the two sides of the V-shaped groove (11) is 45-75 degrees.
2. A V-shaped suspension assembly structure according to claim 1, wherein:
the bottom surface of the upper bracket (3) is provided with a pressing table (31), and the pressing table (31) is in pressing fit with the top surface of the triangular limiting pad (21).
3. A V-shaped suspension assembly structure according to claim 1 or 2, wherein:
the limit bolt (4) is sequentially connected with the positioning nut (6) and the locknut (7) in a threaded manner.
4. A V-shaped suspension assembly structure according to claim 1 or 2, wherein:
the included angle formed by the inclined planes at the two sides of the V-shaped groove (11) is 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810359917.9A CN108454373B (en) | 2018-04-20 | 2018-04-20 | V-shaped suspension assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810359917.9A CN108454373B (en) | 2018-04-20 | 2018-04-20 | V-shaped suspension assembly structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108454373A CN108454373A (en) | 2018-08-28 |
| CN108454373B true CN108454373B (en) | 2023-10-31 |
Family
ID=63236054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810359917.9A Active CN108454373B (en) | 2018-04-20 | 2018-04-20 | V-shaped suspension assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108454373B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367380B (en) * | 2018-11-06 | 2023-10-31 | 东风商用车有限公司 | Suspension cushion assembly structure |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011105404A1 (en) * | 2010-02-25 | 2011-09-01 | 山下ゴム株式会社 | Liquid-sealed vibration control device |
| CN202319863U (en) * | 2011-11-22 | 2012-07-11 | 十堰风神汽车橡塑制品有限公司 | Rear suspension cushion assembly of engine |
| CN203557940U (en) * | 2013-09-29 | 2014-04-23 | 长城汽车股份有限公司 | Engine suspension structure |
| CN203600978U (en) * | 2013-10-31 | 2014-05-21 | 东风商用车有限公司 | Spacing bell-type engine mounting assembly |
| CN203600976U (en) * | 2013-10-31 | 2014-05-21 | 东风商用车有限公司 | Engine suspension assembly with central bolt limiting function |
| WO2014114083A1 (en) * | 2013-01-24 | 2014-07-31 | 安徽江淮汽车股份有限公司 | Suspension mounting bracket |
| CN204077341U (en) * | 2014-09-01 | 2015-01-07 | 东风商用车有限公司 | Rear suspension cushion assembly of engine |
| CN104709063A (en) * | 2015-03-04 | 2015-06-17 | 朱洪建 | Engine fixing seat |
| CN104896006A (en) * | 2015-06-30 | 2015-09-09 | 安徽江淮汽车股份有限公司 | Rear-mounted rubber mat assembly |
| CN106945513A (en) * | 2017-01-23 | 2017-07-14 | 宁波捷豹振动控制系统有限公司 | Automobile gearbox mounting assembly |
| CN207140856U (en) * | 2017-09-15 | 2018-03-27 | 哈尔滨凌云汽车零部件有限公司 | Seat mounting bracket assembly |
| CN208593288U (en) * | 2018-04-20 | 2019-03-12 | 东风商用车有限公司 | V-shaped suspension assembly structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392279C (en) * | 2004-07-28 | 2008-06-04 | 陈清欣 | Engine suspension soft pad assembly |
| US20170355256A1 (en) * | 2016-06-14 | 2017-12-14 | Vibracoustic North America L.P. | Engine mount, system and method |
-
2018
- 2018-04-20 CN CN201810359917.9A patent/CN108454373B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011105404A1 (en) * | 2010-02-25 | 2011-09-01 | 山下ゴム株式会社 | Liquid-sealed vibration control device |
| CN202319863U (en) * | 2011-11-22 | 2012-07-11 | 十堰风神汽车橡塑制品有限公司 | Rear suspension cushion assembly of engine |
| WO2014114083A1 (en) * | 2013-01-24 | 2014-07-31 | 安徽江淮汽车股份有限公司 | Suspension mounting bracket |
| CN203557940U (en) * | 2013-09-29 | 2014-04-23 | 长城汽车股份有限公司 | Engine suspension structure |
| CN203600978U (en) * | 2013-10-31 | 2014-05-21 | 东风商用车有限公司 | Spacing bell-type engine mounting assembly |
| CN203600976U (en) * | 2013-10-31 | 2014-05-21 | 东风商用车有限公司 | Engine suspension assembly with central bolt limiting function |
| CN204077341U (en) * | 2014-09-01 | 2015-01-07 | 东风商用车有限公司 | Rear suspension cushion assembly of engine |
| CN104709063A (en) * | 2015-03-04 | 2015-06-17 | 朱洪建 | Engine fixing seat |
| CN104896006A (en) * | 2015-06-30 | 2015-09-09 | 安徽江淮汽车股份有限公司 | Rear-mounted rubber mat assembly |
| CN106945513A (en) * | 2017-01-23 | 2017-07-14 | 宁波捷豹振动控制系统有限公司 | Automobile gearbox mounting assembly |
| CN207140856U (en) * | 2017-09-15 | 2018-03-27 | 哈尔滨凌云汽车零部件有限公司 | Seat mounting bracket assembly |
| CN208593288U (en) * | 2018-04-20 | 2019-03-12 | 东风商用车有限公司 | V-shaped suspension assembly structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108454373A (en) | 2018-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588506B (en) | Vibration isolation pad | |
| CN108454373B (en) | V-shaped suspension assembly structure | |
| CN203796851U (en) | Engine double-damping device and engine device with same | |
| CN102275590B (en) | Suspended installation structure of main transformer of electric locomotive | |
| CN200955561Y (en) | Steel spring rubber composite shock-absorber | |
| CN216742601U (en) | Damping device of vehicle-mounted power unit diesel engine unit | |
| CN111799931A (en) | Shock attenuation diesel generator | |
| CN204906085U (en) | [electric] motor coach driving motor suspension system | |
| CN208593288U (en) | V-shaped suspension assembly structure | |
| US4504036A (en) | Engine mount preloaded in shear | |
| CN215666503U (en) | Vibration damping seat of elevator traction machine | |
| CN213870927U (en) | New forms of energy electric motor car machine controller base damping device | |
| CN105922855A (en) | Engine suspension damping cushion assembly with adjustable pre-tightening stiffness | |
| CN209743547U (en) | Torsion shaft support | |
| CN203297446U (en) | Vibration attenuation rubber cushion block with metallic framework | |
| CN222949088U (en) | Shock-absorbing structure of bulldozer | |
| CN202162146U (en) | Vibration absorption supporting seat for vibrating screen | |
| CN206765796U (en) | A kind of counterbalanced lift truck engine Grazing condition damping | |
| CN202001394U (en) | Shock absorber of cooling fan | |
| CN216514891U (en) | Railway height-adjusting base plate | |
| CN222296849U (en) | A mounting base for buffering and shock absorption | |
| CN203063609U (en) | Position limiter assembly with vibration attenuation function | |
| CN218777403U (en) | A suspension device for pure electric mining trucks | |
| CN222797582U (en) | Vehicle-mounted generator | |
| CN223243891U (en) | Vibration test device of fuel cell system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |