CN219115440U - Suspension frame hinge structure - Google Patents
Suspension frame hinge structure Download PDFInfo
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- CN219115440U CN219115440U CN202222495977.8U CN202222495977U CN219115440U CN 219115440 U CN219115440 U CN 219115440U CN 202222495977 U CN202222495977 U CN 202222495977U CN 219115440 U CN219115440 U CN 219115440U
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- shaft
- limiting plate
- pin shaft
- hinge structure
- suspension frame
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Abstract
The utility model relates to the technical field of rail transit, and aims to solve the problem that an embedded magnetic levitation running part with uniform bearing and dispersed traction type cannot meet the requirement that the running part passes through a flat curve in a hinged structure with three rotational degrees of freedom; the hinge structure of the utility model releases three rotational degrees of freedom and translational degrees of freedom along the X direction between the suspension frames around the X, Y, Z axis, and simultaneously ensures the transmission of Y-direction force and Z-direction force between the suspension frames, so that the uniformly bearing and dispersed traction type embedded magnetic levitation running part has good flat curve trafficability.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a suspension frame hinge structure.
Background
The existing embedded magnetic levitation running part suspension frame adopts a three-degree-of-freedom hinge structure, mainly comprises two hinge supports and a spherical sliding bearing, and releases the rotational degree of freedom of the suspension frame around a X, Y, Z shaft through the spherical sliding bearing.
For the embedded magnetic levitation running part with uniform bearing and dispersion traction, due to the requirements of structural arrangement and flat curve trafficability, the hinge structure not only needs to have rotational freedom degree around X, Y, Z axis, but also needs to release X-direction translational freedom degree so as to adapt to different distance changes between the inner side and the outer side of the levitation frame when the running part passes the flat curve, and meanwhile, the reliable transmission of Y-direction force and Z-direction force needs to be ensured, and the existing three-degree-of-freedom hinge structure cannot meet the requirements, so that a novel hinge structure needs to be designed.
Disclosure of Invention
The utility model aims to provide a suspension frame hinge structure so as to solve the problem that a hinge structure with three rotational degrees of freedom cannot meet the requirement that a running part passes through a flat curve for an embedded magnetic suspension running part which is uniformly loaded and dispersedly towed.
The utility model is realized by adopting the following technical scheme:
the utility model provides a suspension frame hinge structure, includes articulated seat one and articulated seat two of relative setting, the shaft hole has been seted up on the articulated seat one, install the round pin axle in the shaft hole, the round pin axle runs through the shaft hole sets up and can follow the shaft hole axial slip, the first end of round pin axle is connected with spherical slide bearing, spherical slide bearing installs on the articulated seat two.
The first end of the pin shaft refers to one end of the pin shaft, and is different from the second end of the pin shaft mentioned later, and the first end and the second end of the pin shaft refer to two ends of the pin shaft respectively.
The first hinge seat and the second hinge seat are respectively arranged at the end parts of the two adjacent suspension frames, and specifically, the first hinge seat and the second hinge seat are respectively arranged at the end parts of the left suspension module and the right suspension module of the two adjacent suspension frames. The suspension control point can be shared between the adjacent suspension modules, so that the number of the suspension sensors is reduced, the arrangement space of the sensors is saved, and the cost is reduced.
The hinge structure releases three rotational degrees of freedom and translational degrees of freedom along the X direction between the suspension frames around the X, Y, Z axis, and simultaneously ensures the transmission of Y-direction force and Z-direction force between the suspension frames, so that the uniformly-bearing and dispersed traction type embedded magnetic levitation running part has good flat curve trafficability. The X direction is the same as the axial direction of the shaft hole, and the Y direction force and the Z direction force refer to transverse force and vertical force.
As a preferable technical scheme:
and a seat hole is formed in the second hinging seat, and the spherical sliding bearing is arranged in the seat hole.
As a preferable technical scheme:
the sliding shaft sleeve is arranged in the shaft hole, and the pin shaft is arranged in the sliding shaft sleeve.
The pin shaft is in sliding connection with the sliding shaft sleeve, and has the functions of reducing friction, dissipating heat and the like.
As a preferable technical scheme:
the two ends of the shaft hole are respectively provided with a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are connected to the first hinging seat, and the first limiting plate and the second limiting plate are used for limiting the sliding shaft sleeve axially.
The first limiting plate and the second limiting plate are used for preventing the sliding shaft sleeve from loosening.
As a preferable technical scheme:
the sliding shaft sleeve comprises a first shaft sleeve and a second shaft sleeve, and the first shaft sleeve and the second shaft sleeve are respectively arranged at two ends of the shaft hole.
As a preferable technical scheme:
the first shaft sleeve and the second shaft sleeve are connected to the first hinge seat through bolts.
As a preferable technical scheme:
the second end of the pin shaft is provided with a first annular groove, the top of the first limiting plate stretches into the first annular groove, and the first limiting plate can be abutted with two sides of the first annular groove.
The first annular groove is used for limiting the range of axial movement of the pin shaft, the first limiting plate is fixed on the first hinge seat, the pin shaft moves axially relative to the first limiting plate, and the position of the first limiting plate, which is abutted to two sides of the first annular groove, is the farthest position of axial movement of the pin shaft. And the axial telescopic displacement of the pin shaft is limited through the matching structure of the first limiting plate and the first annular groove.
As a preferable technical scheme:
the spherical sliding bearing comprises an inner ring and an outer ring, the inner ring is rotationally connected with the outer ring, and the outer ring is in interference fit in the seat hole.
The spherical sliding bearing has three degrees of rotational freedom of its inner ring relative to its outer ring.
As a preferable technical scheme:
the first end of the pin shaft is arranged in the inner ring in a penetrating mode, a shaft shoulder is arranged at the first end of the pin shaft, and one side of the inner ring is attached to the shaft shoulder.
The shaft shoulder provides an abutting surface for the inner ring, so that the inner ring can be conveniently positioned.
As a preferable technical scheme:
the first end of the pin shaft is provided with a pin shaft limiting plate, the pin shaft limiting plate is positioned at the end parts of the pin shaft and the inner ring, and the pin shaft limiting plate is connected with the pin shaft through a fastener to clamp the inner ring between the pin shaft and the pin shaft limiting plate.
The pin shaft limiting plate clamps the inner ring between the pin shaft and the pin shaft limiting plate, and simultaneously limits the rotation between the inner ring and the pin shaft, so that the pin shaft is driven to rotate together when the inner ring rotates.
As a preferable technical scheme:
the fastener can adopt bolts, corresponding bolt holes are formed in the pin shaft limiting plate and the pin shaft, and the bolts are assembled in the bolt holes.
As a preferable technical scheme:
the inner wall of the seat hole is provided with a step surface, one side of the outer ring is abutted to the step surface, the inner wall of the seat hole is provided with a second annular groove, a circlip is arranged in the second annular groove, the other side of the outer ring is abutted to the circlip, and the circlip is used for limiting the outer ring axially.
The step surface and the circlip jointly position the outer ring.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. the hinge structure of the utility model realizes the force transmission between the adjacent suspension modules, and simultaneously enables the adjacent suspension modules to share suspension control points, thereby reducing the arrangement quantity of suspension sensors, being beneficial to saving the arrangement space of the sensors and reducing the cost.
2. The hinge structure releases three rotational degrees of freedom and translational degrees of freedom along the X direction between the suspension frames around the X, Y, Z axis, and simultaneously ensures the transmission of Y-direction force and Z-direction force between the suspension frames, so that the uniformly-bearing and dispersed traction type embedded magnetic levitation running part has good flat curve trafficability.
Drawings
Fig. 1 is a schematic structural view of a hinge structure of a suspension frame according to the present utility model.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is a sectional view in the direction B-B of fig. 2.
Fig. 4 is a schematic installation view of the articulated structure of the suspension frame according to the present utility model.
Icon: the device comprises a first hinge seat, a second hinge seat, a 3-pin shaft, a 4-sliding shaft sleeve, a 5-spherical sliding bearing, a 51-inner ring, a 52-outer ring, a 6-pin shaft limiting plate, a 7-circlip, a first 8-limiting plate, a second 9-limiting plate, a 10-bolt, a 11-suspension module and a 12-locating pin.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-4, the present embodiment provides a suspension frame hinge structure, which includes a hinge seat 1 and a hinge seat 2 that are disposed opposite to each other, wherein the hinge seat 1 and the hinge seat 2 are respectively mounted at the end portions of left and right suspension modules 11 of two adjacent suspension frames, and are positioned and fastened by positioning pins 12 and bolts 10. The locating pin 12 acts to locate and bear tangential (X, Y) forces and the bolt 10 acts to tighten and bear axial (Z) forces.
The hinge seat I1 is provided with a shaft hole, a sliding shaft sleeve 4 is arranged in the shaft hole, a pin shaft 3 is arranged in the sliding shaft sleeve 4, and the pin shaft 3 is in sliding connection with the sliding shaft sleeve 4. The pin shaft 3 penetrates through the shaft hole and can axially slide along the shaft hole. The sliding shaft sleeve 4 comprises a first shaft sleeve and a second shaft sleeve, and the first shaft sleeve and the second shaft sleeve are respectively arranged at two ends of the inner part of the shaft hole. The two ends outside the shaft hole are respectively provided with a first limiting plate 8 and a second limiting plate 9, the first limiting plate 8 and the second limiting plate 9 are connected to the first hinge seat 1 through bolts 10, and the first limiting plate 8 and the second limiting plate 9 are used for axially limiting the sliding shaft sleeve 4 and preventing the sliding shaft sleeve 4 from loosening.
The first end of the pin shaft 3 is connected with a spherical sliding bearing 5, and the second end of the pin shaft 3 is provided with a first annular groove. The top of the first limiting plate 8 stretches into the first annular groove, a certain gap is reserved between the first limiting plate 8 and the bottom of the first annular groove, the pin shaft 3 can stretch out and draw back along the axial direction conveniently, and the first limiting plate 8 can be abutted to two sides of the first annular groove and is used for limiting the axial stretching displacement of the pin shaft 3. Because the first limiting plate 8 is fixed on the first hinge seat 1, the pin shaft 3 can move axially relative to the first limiting plate 8, and the position where the first limiting plate 8 abuts against two sides of the first annular groove is the farthest position where the pin shaft 3 moves axially. The first limiting plate 8 is matched with the first annular groove, so that the axial expansion range of the pin shaft 3 can be limited.
And a seat hole is formed in the hinge seat II 2, and the spherical sliding bearing 5 is arranged in the seat hole. The spherical sliding bearing 5 includes an inner ring 51 and an outer ring 52, the inner ring 51 being rotatably connected to the outer ring 52, the inner ring 51 having three degrees of rotational freedom with respect to the outer ring 52.
Regarding the mounting manner of the inner ring 51 and the outer ring 52:
the inner wall of the seat hole is provided with a step surface, one side of the outer ring 52 is abutted against the step surface, the inner wall of the seat hole is provided with a second annular groove, the second annular groove is internally provided with a circlip 7, the circlip 7 is an axial circlip, the circlip 7 has elasticity, two ends of the circlip 7 are tensioned during installation, the outer diameter of the circlip 7 is reduced, the circlip 7 is installed in the second annular groove, and the circlip 7 is opened and stably assembled in the second annular groove. The other side of the outer ring 52 is abutted against the circlip 7, and the circlip 7 is used for axially limiting the outer ring 52. The step surface and the circlip 7 together locate the outer race 52 for stable installation in the seat bore.
The first end of the pin shaft 3 is provided with a shaft shoulder, the inner ring 51 is sleeved outside the first end of the pin shaft 3, one side of the inner ring 51 is attached to the shaft shoulder, and the shaft shoulder provides an abutting surface for the inner ring 51, so that the inner ring 51 is conveniently positioned. The end parts of the pin shaft 3 and the inner ring 51 are provided with pin shaft limiting plates 6, the pin shaft limiting plates 6 are attached to the end parts of the pin shaft 3 and the inner ring 51, the pin shaft limiting plates 6 are fixedly connected with the pin shaft 3 through bolts 10, the inner ring 51 is clamped between the pin shaft 3 and the pin shaft limiting plates 6, meanwhile, rotation between the inner ring 51 and the pin shaft 3 is limited, and when the inner ring 51 rotates, the pin shaft 3 rotates along with the inner ring 51.
The adoption of the hinge structure realizes the force transmission between the adjacent suspension modules, and simultaneously enables the adjacent suspension modules to share the suspension control point, thereby reducing the arrangement quantity of suspension sensors, being beneficial to saving the arrangement space of the sensors and reducing the cost, releasing three rotational degrees of freedom between the suspension frames around X, Y, Z axes and translational degrees of freedom along X directions, namely realizing the sharing suspension point through four-degree-of-freedom hinge between the suspension frames, releasing the longitudinal degrees of freedom, simultaneously ensuring the transmission of transverse force and vertical force between the suspension frames, and enabling the uniformly-bearing and dispersed traction type embedded magnetic suspension running part to have good flat curve trafficability.
Example 2
This embodiment differs from embodiment 1 in that:
the spherical sliding bearing 5 can be replaced by other hinges with three degrees of freedom of rotation, the pin 3 is not limited to a strictly-defined pin, and a common rod member can also be used.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A suspension frame hinge structure which characterized in that:
including articulated seat one and articulated seat two of relative setting, the shaft hole has been seted up on the articulated seat one, install the round pin axle in the shaft hole, the round pin axle runs through the shaft hole sets up and can follow the shaft hole axial slip, the first end of round pin axle is connected with spherical slide bearing, spherical slide bearing installs on the articulated seat two.
2. The suspension frame hinge structure according to claim 1, wherein:
and a seat hole is formed in the second hinging seat, and the spherical sliding bearing is arranged in the seat hole.
3. The suspension frame hinge structure according to claim 1, wherein:
the sliding shaft sleeve is arranged in the shaft hole, and the pin shaft is arranged in the sliding shaft sleeve.
4. A suspension frame hinge structure according to claim 3, wherein:
the two ends of the shaft hole are respectively provided with a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are connected to the first hinging seat, and the first limiting plate and the second limiting plate are used for limiting the sliding shaft sleeve axially.
5. The suspension frame hinge structure according to claim 4, wherein:
the sliding shaft sleeve comprises a first shaft sleeve and a second shaft sleeve, and the first shaft sleeve and the second shaft sleeve are respectively arranged at two ends of the shaft hole.
6. The suspension frame hinge structure according to claim 4, wherein:
the second end of the pin shaft is provided with a first annular groove, the top of the first limiting plate stretches into the first annular groove, and the first limiting plate can be abutted with two sides of the first annular groove.
7. The suspension frame hinge structure according to claim 2, wherein:
the spherical sliding bearing comprises an inner ring and an outer ring, the inner ring is rotationally connected with the outer ring, and the outer ring is in interference fit in the seat hole.
8. The suspension frame hinge structure of claim 7, wherein:
the first end of the pin shaft is arranged in the inner ring in a penetrating mode, a shaft shoulder is arranged at the first end of the pin shaft, and one side of the inner ring is attached to the shaft shoulder.
9. The suspension frame hinge structure of claim 8, wherein:
the first end of the pin shaft is provided with a pin shaft limiting plate, the pin shaft limiting plate is positioned at the end parts of the pin shaft and the inner ring, and the pin shaft limiting plate is connected with the pin shaft through a fastener to clamp the inner ring between the pin shaft and the pin shaft limiting plate.
10. A suspension frame hinge structure according to any one of claims 7-9, wherein:
the inner wall of the seat hole is provided with a step surface, one side of the outer ring is abutted to the step surface, the inner wall of the seat hole is provided with a second annular groove, a circlip is arranged in the second annular groove, the other side of the outer ring is abutted to the circlip, and the circlip is used for limiting the outer ring axially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222495977.8U CN219115440U (en) | 2022-09-21 | 2022-09-21 | Suspension frame hinge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222495977.8U CN219115440U (en) | 2022-09-21 | 2022-09-21 | Suspension frame hinge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219115440U true CN219115440U (en) | 2023-06-02 |
Family
ID=86529416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222495977.8U Active CN219115440U (en) | 2022-09-21 | 2022-09-21 | Suspension frame hinge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219115440U (en) |
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2022
- 2022-09-21 CN CN202222495977.8U patent/CN219115440U/en active Active
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