CN212373141U - Hydraulic suspension system for power assembly of wide-body mine car - Google Patents
Hydraulic suspension system for power assembly of wide-body mine car Download PDFInfo
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- CN212373141U CN212373141U CN201922378690.5U CN201922378690U CN212373141U CN 212373141 U CN212373141 U CN 212373141U CN 201922378690 U CN201922378690 U CN 201922378690U CN 212373141 U CN212373141 U CN 212373141U
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Abstract
The utility model belongs to the technical field of automobile engineering, specific broad body mine car power assembly hydraulic pressure suspension system that says so. The system comprises a U-shaped frame, a power assembly, a connecting rod, a power assembly fixing support, a rubber bushing, a connecting rod support seat, a frame fixing support and a hydraulic bushing; the U-shaped frame is connected with the power assembly through four power assembly fixing supports and a frame fixing support; the rubber bushing is arranged between the power assembly fixing support and the frame fixing support; the power assembly is fixed with a jacket; a hydraulic bushing is arranged in the outer sleeve in an interference fit manner; the connecting rod passes through the hydraulic bushing, and two other rubber bushings are arranged between the two ends of the connecting rod and the connecting rod supporting seat. The suspension system can meet the requirement of the wide-body mine car on the stability of the power assembly suspension system under different running conditions, can better attenuate the vibration transmitted from the power assembly to the cab, and is less in change and easy to install and realize compared with the conventional wide-body mine car power assembly suspension system.
Description
Technical Field
The utility model belongs to the technical field of automobile engineering, specific broad body mine car power assembly hydraulic pressure suspension system that says so.
Background
Along with the continuous progress of human society, the demand of people on the performance of automobiles is higher and higher, the riding comfort is taken as an important part of the performance assessment of the automobiles, the requirements of people on the riding comfort are higher and higher naturally, and the main reason of influencing the riding comfort of the automobiles is that when the automobiles run, vibration generated by a power assembly of the automobiles is more transmitted to a cab, so that the riding comfort of the automobiles is influenced. Generally, a suspension system is used for damping vibration transmitted from a power assembly to a cab of an automobile, and therefore, a good-performance suspension system is essential.
At present, automobiles can be classified into two types, namely, vehicles for highways and vehicles for off-highways, and a wide-body mine car as a vehicle for off-highways is mainly applied to transportation under severe driving conditions such as mines or construction sites. Moreover, in order to ensure the reliability of the operation, the power assembly suspension system of the traditional wide-body mine car generally adopts six-point support, including direct four-point support between the power assembly and the frame, and the power assembly is supported by indirect 2 points between the connecting rod and the frame, and suspension elements used on the six supporting points are all rubber bushings, meanwhile, in order to improve the performance of the power assembly suspension system, the elastic connection formed by the rubber bushing is also adopted between the connecting rod and the power assembly, although the structure has higher rigidity and better stability, can meet the requirements of the wide-body mine car under different running conditions, but the damping effect of the damping device on vibration is poor, the riding comfort of a driver is greatly influenced, therefore, the driver is more easily fatigued, and the incidence of driving danger is improved, so that the design of a suspension system which can better attenuate the vibration transmitted to the cab by the power assembly of the wide-body mine car is inevitable.
Disclosure of Invention
The utility model provides a simple structure's wide body mine car power assembly hydraulic pressure suspension system, the vibration in the driver's cabin can better decay wide body mine car power assembly be transmitted to this system, both can satisfy the wide body mine car to the requirement of its power assembly suspension system stability under the different driving conditions, the decay power assembly that again can be better transmits the vibration in the driver's cabin, has solved the above-mentioned not enough that current wide body mine car power assembly suspension system exists.
The technical scheme of the utility model is explained as follows with the attached drawings:
a hydraulic suspension system for a power assembly of a wide-body mine car comprises two U-shaped frames 1, a power assembly 2, a connecting rod 3, four power assembly fixing supports 4, six rubber bushings 5, two connecting rod supporting seats 6, four frame fixing supports 7 and two hydraulic bushings 8; the two U-shaped frames 1 are arranged at two ends of the power assembly 2 and are connected with the power assembly 2 through four power assembly fixing supports 4 and four frame fixing supports 7; the four rubber bushings 5 are arranged between the power assembly fixing support 4 and the frame fixing support 7; two outer sleeves are fixed on the power assembly 2; a hydraulic bushing 8 is arranged in the outer sleeve in an interference fit manner; the connecting rod 3 passes through the hydraulic bushing 8, and two other rubber bushings 5 are arranged between the two ends of the connecting rod 3 and the connecting rod supporting seat 6.
The power assembly fixing support 4 and the frame fixing support 7 are L-shaped and respectively comprise a vertical support and a horizontal support; the vertical support of the frame fixing support 7 is fixed with the U-shaped frame 1; and the vertical support of the power assembly fixing support 4 is fixed with the power assembly 2.
The connecting rod supporting seat 6 is of an inverted L shape and comprises a vertical supporting seat and a horizontal supporting seat; the lower end of the vertical support of the connecting rod support seat 6 is fixed on the lower surface of the groove of the U-shaped frame 1.
The U-shaped frame 1 is U-shaped.
The rubber bushing 5 is composed of an inner part and an outer part, the outer part is three-section stepped nut-shaped rubber 51, and the inner part is a cylindrical metal tube 52.
The hydraulic bushing 8 comprises an outer shell 81, an inner sleeve 82, a limiting block 83, a rubber main spring 84 and a metal framework 85; the housing 81 is metal; the inner sleeve 82 is a cylindrical metal pipe, and a limiting block 83 made of plastic is sleeved outside the middle part of the inner sleeve; one surface of the limiting block 83 is a plane 831, and the other surface is an arc surface 832; the peripheries of the limiting block 83 and the inner sleeve 82 are provided with metal frameworks 85; the radius of the circular rings at the two ends of the metal framework 85 is the largest and the metal framework is tightly attached to the inner side of the shell 81; the outer parts of the inner sleeve 82, the limiting block 83 and the metal framework 85 are all wrapped with a rubber main spring 84; the rubber main spring 84 and the limiting block 83 divide the hydraulic bushing 8 into two liquid chambers, namely an upper liquid chamber 861 and a lower liquid chamber 862; the upper fluid chamber 861 and the lower fluid chamber 862 are connected by an inertial aperture 87.
The upper liquid chamber 861 and the lower liquid chamber 862 are both filled with an ethylene glycol aqueous solution without bubbles.
The section of the inertia pore passage 87 is rectangular, the depth of the section is 2mm, the width of the section is 2.6mm, and the sectional area is 5.2mm2。
The utility model has the advantages that:
the utility model ensures the working reliability, continues to use the traditional six-point supporting form, and the suspension original between the frame and the power assembly or the connecting rod adopts the rubber bushing with stable rigidity and performance; in consideration of the characteristics that the load at the joint of the connecting rod and the power assembly is small, but the vibration is large, the original rubber bushing is replaced by the novel hydraulic bushing, the requirement on the working reliability of the wide-body mine car can be met, most of the vibration transmitted to the cab by the power assembly can be attenuated, and compared with a traditional wide-body mine car power assembly suspension system, the wide-body mine car power assembly suspension system is less in change and easy to install and realize.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of the overall structure of the utility model;
FIG. 3 is a planer view of the rubber bushing;
FIG. 4 is a side elevational view of the hydraulic bushing;
FIG. 5 is a top plan view of the hydraulic bushing;
FIG. 6 is a three-dimensional schematic view of a portion of the structure of a hydraulic bushing;
fig. 7 is a three-dimensional schematic view of the internal structure of the hydraulic bushing.
In the figure: 1. a U-shaped frame; 2. a power assembly; 3. a connecting rod; 4. a power assembly fixing support; 5. a rubber bushing; 6. a connecting rod supporting seat; 7. a frame fixing support; 8. a hydraulic bushing; 51. rubber; 52. a metal tube; 81. a housing; 82. an inner sleeve; 83. a limiting block; 84. a rubber main spring; 85. a metal skeleton; 87. an inertial duct; 861. a liquid feeding chamber; 862. a lower liquid chamber.
Detailed Description
Referring to fig. 1 and 2, the hydraulic suspension system for the power assembly of the wide-body mine car comprises two U-shaped frames 1, a power assembly 2, a connecting rod 3, four power assembly fixing supports 4, six rubber bushings 5, two connecting rod supporting seats 6, four frame fixing supports 7 and two hydraulic bushings 8.
Referring to fig. 1 and 3, two U-shaped frames 1 are disposed at two ends of a power assembly 2 and connected to the power assembly 2 through four power assembly fixing supports 4 and four frame fixing supports 7; the four rubber bushings 5 are positioned between the power assembly fixing support 4 and the frame fixing support 7, and a part of energy generated by the vibration of the power assembly is consumed by changing the shape of the rubber 51 outside the rubber bushings 5, so that the four rubber bushings are used for damping the vibration directly transmitted to the frame 1 by the power assembly 2.
Referring to fig. 1, the other two rubber bushings 5 are located between the connecting rod 3 and the connecting rod support base 9, and a part of energy generated by the vibration of the powertrain is consumed by changing the shape of the rubber 51 outside the rubber bushings 5, so as to be used for damping the vibration indirectly transmitted to the U-shaped frame 1 by the powertrain 2 through the connecting rod 3.
Referring to fig. 1, the connecting rod 3 is connected with the U-shaped frame 1 through two connecting rod supporting seats 9; the connecting rod 3 penetrates through a part of the power assembly 2 and sleeves two hydraulic bushings 8; the connecting rod 3 is used to ensure that the powertrain 2 and the frame 1 can be firmly connected together, and a damping device, such as a hydraulic bushing 8, can be added to the connecting rod 3 to further damp the vibration transmitted from the powertrain 2 to the U-shaped frame 1.
Referring to fig. 3, the rubber bushing 5 is composed of an inner part and an outer part, the outer part is a three-segment stepped nut-shaped rubber 51, and the inner part is a cylindrical metal tube 52; the metal tube 52 is used for better fixing the rubber 51 at a required position on one hand, and is used for isolating the rubber 51 from the frame 1 on the other hand, so that the replacement of the rubber 51 is convenient, and the maintenance of the frame 1 is facilitated.
Referring to fig. 4 and 5, the hydraulic bushing 8 can be divided into an outer casing 81, an inner casing 82, a stopper 83, a rubber main spring 84, a metal frame 85, a fluid-feeding chamber 861, a fluid-discharging chamber 862, and an inertia duct 87.
Referring to fig. 4 and 5, the outer casing 81 of the hydraulic bushing 8 is made of metal, and is used for protecting the hydraulic bushing 8 and preventing the liquid of the hydraulic bushing 8 from leaking.
Referring to fig. 2 and 4, the inner sleeve 82 of the hydraulic bushing 8 is a metal tube in a cylindrical shape and is used for being sleeved on the connecting rod 3.
Referring to fig. 2 and 6, a part of the middle of the inner sleeve 82 is sleeved with a limiting block 83 made of a plastic material, the structure of the limiting block 83 is similar to that of a through-hole disc with two sides cut off, one surface is a plane 831, and the other surface is an arc surface 832; the hydraulic bushing 8 is used for limiting deformation of the hydraulic bushing 8 and preventing the hydraulic bushing 8 from excessively deforming for buffering vibration when pressure between the connecting rod 3 and the power assembly 2 is too large, and further the hydraulic bushing 8 leaks and fails.
Referring to fig. 6, a metal framework 85 is disposed on the peripheries of the limiting block 83 and the inner sleeve 82; the radius of the circular rings at the two ends of the metal framework 85 is the largest, the circular rings are tightly attached to the inner side of the shell 81 of the hydraulic bushing 8, the radius of the cylindrical pipe at the middle part of the metal framework 85 is smaller, and most of the symmetrical position of the cylindrical pipe is cut off; the symmetrical position of the truncated cylindrical pipe corresponds to the arc surface 832 of the limiting block 83, and the symmetrical position of the uncut cylindrical pipe corresponds to the plane 831 of the limiting block 83; by applying the metal framework 85, the components of the hydraulic bushing 8 can be arranged better and more conveniently, the arrangement accuracy of each position can be ensured, and the processing and installation of the rubber main spring 84 are facilitated.
Referring to fig. 4 and 5, the outer portions of the limiting block 83, the inner sleeve 82 and the metal framework 85 are all wrapped with a rubber main spring 84; the rubber main spring 84 has different wrapping sizes for the limiting block 83, the inner sleeve 82 and the metal framework 85;
referring to fig. 7, the rubber main spring 84 and the metal frame 85 have a corresponding wrapping relationship, that is, as long as the metal frame 85 has a structure at this position, the corresponding rubber main spring 84 vertically fills the gap between the metal frame 85 and the inner sleeve 82, the gap between the metal frame 85 and the outer shell 81 of the hydraulic bushing 8, and the gap between the metal frame 85 and the limiting block 83; the rubber main spring 84 between the metal framework 85 and the inner sleeve 82 is mainly used for bearing the pressure between the power system 2 and the connecting rod 3; the main rubber spring 84 between the metal frame 85 and the housing 81 of the hydraulic bushing 8 has a portion for disposing the inertia track 87 and a portion for dividing the hydraulic bushing 8 into two liquid chambers 86, i.e., an upper liquid chamber 861 and a lower liquid chamber 862.
Referring to fig. 7, the maximum size of the rubber main spring 84 after being wrapped is the same as the size of the circular ring with the largest radius at the two ends of the metal framework 85; the different wrapping sizes of the rubber main spring 84 to the stopper 83, the inner sleeve 82 and the metal framework 85 and the corresponding wrapping relationship of the rubber main spring 84 and the metal framework 85 divide the hydraulic bushing 8 into an upper fluid chamber 861 and a lower fluid chamber 862.
Referring to fig. 4, 5 and 7, the upper liquid chamber 861 and the lower liquid chamber 862 are connected together by an inertia hole 87, the inertia hole 87 is located between the corresponding portion of the metal skeleton 85 and the housing 81 of the hydraulic bushing 8, the corresponding portion of the metal skeleton 85 corresponds to the portion of the truncated cylindrical pipe in the middle of the metal skeleton 85, and the upper liquid chamber 861 and the lower liquid chamber 862 are not filled with the ethylene glycol aqueous solution, so that when the hydraulic bushing 8 is deformed, the extrusion of the rubber main spring 84 can cause the ethylene glycol aqueous solution in the upper liquid chamber 861 to flow to the lower liquid chamber 862 through the inertia hole 87, or cause the ethylene glycol aqueous solution in the lower liquid chamber 862 to flow to the upper liquid chamber 861 through the inertia hole 87, and further consume a damping force and consume more energy through the flow of the ethylene glycol aqueous solution;
referring to fig. 7, the inertia track 87 has a generally rectangular cross-section with a depth of 2mm, a width of 2.6mm and a cross-sectional area of 5.2mm due to the size limitations of the metal frame 85 and the outer casing 81 of the hydraulic bushing 82Therefore, the method is convenient to realize in engineering, and can ensure that the glycol aqueous solution in the hydraulic bushing 8 can normally flow as required.
The utility model discloses a theory of operation does:
when the wide-body mine car runs, vibration generated by the power assembly 2 is transmitted into a cab through the frame 1, namely the smaller the vibration transmitted by the power assembly 2 to the U-shaped frame 1 is, the better the vibration is, the wide-body mine car power assembly hydraulic suspension system is applied, and the vibration transmitted by the power assembly 2 to the U-shaped frame 1 is greatly reduced compared with the traditional arrangement, firstly, for the vibration between the U-shaped frame 1 with larger load and the power assembly 2 and the connecting rod 3, the suspension system adopts the traditional six-point support form, and suspension elements between the U-shaped frame 1 and the power assembly 2 or the connecting rod 3 adopt the rubber bushing 5 with stable rigidity and performance; the stability of the wide mine car during running is guaranteed, and the basic riding comfort of the existing wide mine car is also guaranteed. Then, the vibration of the joint of the connecting rod 3 and the power assembly 2 is larger and the borne power assembly load is only about 20 percent by utilizing the simulation analysis of a multi-body dynamics method,
therefore, the original rubber bushing 5 is replaced by a hydraulic bushing 8, the deformation of the hydraulic bushing 8 is utilized to consume the power assembly 2 and transmit the power assembly to the connecting rod 3, and further to transmit the vibration of the U-shaped frame 1, since the interior of the hydraulic bushing 8 is not only provided with rubber but also filled with an aqueous glycol solution without bubbles, therefore, when the hydraulic bushing 8 deforms, the rubber main spring 84 is squeezed to directly convert a part of energy into elastic energy, the glycol aqueous solution in the liquid chamber 86 is squeezed to force the glycol aqueous solution to flow to the other liquid chamber 86, the damping force is consumed, and further more energy is consumed, therefore, by applying the hydraulic bushing 8 at the junction of the connecting rod 3 and the powertrain 2, the vibrations of the powertrain transmitted into the cab can be better damped, and compared with the traditional wide-body mine car power assembly suspension system, the suspension system is less in change and easy to install and realize.
Claims (8)
1. A hydraulic suspension system for a power assembly of a wide-body mine car is characterized by comprising two lower U-shaped frames (1), a power assembly (2), a connecting rod (3), four power assembly fixing supports (4), six rubber bushings (5), two connecting rod supporting seats (6), four frame fixing supports (7) and two hydraulic bushings (8); the two U-shaped frames (1) are arranged at two ends of the power assembly (2) and are connected with the power assembly (2) through four power assembly fixing supports (4) and four frame fixing supports (7); the four rubber bushings (5) are arranged between the power assembly fixing support (4) and the frame fixing support (7); two outer sleeves are fixed on the power assembly (2); a hydraulic bushing (8) is arranged in the outer sleeve in an interference fit manner; the connecting rod (3) penetrates through the hydraulic bushing (8), and the other two rubber bushings (5) are arranged between the two ends of the connecting rod (3) and the connecting rod supporting seat (6).
2. The hydraulic suspension system of a wide-body mine car power assembly according to claim 1, characterized in that the power assembly fixing support (4) and the frame fixing support (7) are L-shaped and comprise a vertical support and a horizontal support; the vertical support of the frame fixing support (7) is fixed with the U-shaped frame (1); and a vertical support of the power assembly fixing support (4) is fixed with the power assembly (2).
3. The hydraulic suspension system of a wide-bodied mine car powertrain of claim 1, wherein said connecting-rod support base (6) is of inverted "L" shape, comprising a vertical support and a horizontal support; the lower end of a vertical support of the connecting rod supporting seat (6) is fixed on the lower surface of a groove of the U-shaped frame (1).
4. The hydraulic suspension system of a wide-body mine car power assembly according to claim 1, characterized in that the U-shaped frame (1) is U-shaped.
5. A hydraulic suspension system for a wide body mining vehicle powertrain according to claim 1, characterised in that the rubber bushing (5) is comprised of an inner and an outer portion, the outer portion being three-piece stepped nut shaped rubber (51) and the inner portion being a cylindrical shaped metal tube (52).
6. The wide body mining vehicle powertrain hydraulic mount system of claim 1, wherein the hydraulic bushing (8) includes an outer shell (81), an inner sleeve (82), a stop block (83), a rubber main spring (84), and a metal skeleton (85); the housing (81) is metal; the inner sleeve (82) is a cylindrical metal pipe, and a limiting block (83) made of plastic is sleeved outside the middle part of the inner sleeve; one pair of surfaces of the limiting block (83) is a plane (831), and the other pair of surfaces is an arc surface (832); the peripheries of the limiting block (83) and the inner sleeve (82) are provided with metal frameworks (85); the circular ring radius of the two ends of the metal framework (85) is maximum and the metal framework is tightly attached to the inner side of the shell (81); the outer parts of the inner sleeve (82), the limiting block (83) and the metal framework (85) are all wrapped with rubber main springs (84); the rubber main spring (84) and the limiting block (83) divide the hydraulic bushing (8) into two liquid chambers, namely an upper liquid chamber (861) and a lower liquid chamber (862); the upper liquid chamber (861) and the lower liquid chamber (862) are connected together by an inertial duct (87).
7. The hydraulic suspension system for a wide body mining vehicle powertrain of claim 6, wherein the upper fluid chamber (861) and the lower fluid chamber (862) are both bubble-free and filled with glycol solution.
8. The hydraulic suspension system of a wide body mine car powertrain of claim 6, wherein the inertial tunnel (87) is rectangular in cross-section, 2mm deep in cross-section, 2.6mm wide in cross-section, and 5.2mm in cross-sectional area2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922378690.5U CN212373141U (en) | 2019-12-26 | 2019-12-26 | Hydraulic suspension system for power assembly of wide-body mine car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922378690.5U CN212373141U (en) | 2019-12-26 | 2019-12-26 | Hydraulic suspension system for power assembly of wide-body mine car |
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| Publication Number | Publication Date |
|---|---|
| CN212373141U true CN212373141U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922378690.5U Active CN212373141U (en) | 2019-12-26 | 2019-12-26 | Hydraulic suspension system for power assembly of wide-body mine car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212373141U (en) |
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2019
- 2019-12-26 CN CN201922378690.5U patent/CN212373141U/en active Active
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