CN218913457U - Spherical hinge bearing and mining dump truck - Google Patents

Abstract

The embodiment of the utility model discloses a spherical hinge bearing and a mining dump truck, comprising a spherical bowl, a spherical pin and a sealing cover, wherein the spherical bowl is provided with a first spherical inner surface which is hemispherical; the ball pin comprises a ball head with a spherical outer surface, and the spherical outer surface is matched with the shape of the first spherical inner surface; the sealing cover comprises a first cover body and a second cover body which are in butt joint with each other, the ball head is rotatably arranged between the first cover body and the second cover body, the surfaces of the first cover body and the second cover body, which are opposite to each other, form a second spherical inner surface, and the second spherical inner surface is partially spherical and is matched with the shape of the spherical outer surface; the ball bowl is provided with an end face on one side facing the sealing cover, and the center of the ball of the first spherical inner surface coincides with the center of the end face.

Description

Spherical hinge bearing and mining dump truck

Technical Field

The embodiment of the utility model relates to the technical field of bearings, in particular to a spherical hinge bearing and a mining dump truck comprising the spherical hinge bearing.

Background

In order to meet the requirements of the technical development level improvement of the mining dump truck industry in China, the refinement and quality degree of the mine car industry is continuously deepened, and the product quality requirements and the autonomous requirements of main accessories of the vehicle are also continuously improved.

The front-rear suspension of a vehicle often requires the use of sliding bearings with a certain pivot angle and which are subjected to large axial forces.

In the prior art, a part of electric transmission mining dump trucks are connected in a hanging way by adopting an inlet knuckle bearing, but the knuckle bearing cannot bear great axial force and has a limited swing angle range. If the bearing is required to bear larger axial force, the joint bearing and the thrust sliding bearing are required to be matched for use, and if the bearing is required to meet larger swing angle or axial force, the bearing has the problems of limited type selection, high cost and the like.

Disclosure of Invention

The embodiment of the utility model provides a spherical hinge bearing which can bear larger radial force and axial force and has larger swing angle so as to solve the problems in the prior art.

The spherical hinge bearing comprises a spherical bowl, a spherical pin and a sealing cover, wherein the spherical bowl is provided with a first spherical inner surface, and the first spherical inner surface is hemispherical; the ball pin comprises a ball head with a spherical outer surface, and the spherical outer surface is matched with the shape of the first spherical inner surface; the sealing cover comprises a first cover body and a second cover body which are in butt joint with each other, the ball head is rotatably arranged between the first cover body and the second cover body, the surfaces of the first cover body and the second cover body, which are opposite to each other, form a second spherical inner surface, and the second spherical inner surface is partially spherical and is matched with the shape of the spherical outer surface;

the ball bowl is provided with an end face on one side facing the sealing cover, and the center of the first spherical inner surface coincides with the center of the end face.

According to some embodiments of the utility model, the bowl has an oil filler hole extending through an outer surface of the bowl and the first spherical inner surface.

According to some embodiments of the utility model, the first spherical inner surface is provided with an oil guiding groove, which communicates with the oil filling hole.

According to some embodiments of the utility model, the oil filler hole penetrates through a bottom center of the first spherical inner surface;

the number of the oil guide grooves is multiple, and the oil guide grooves are radially arranged from the oil filling holes.

According to some embodiments of the utility model, the bowl is cylindrical, and the bottom surface of the bowl is the end surface.

According to some embodiments of the utility model, a side of the bowl facing away from the cover has a chamfer.

According to some embodiments of the utility model, the ball stud further comprises a stem portion and a first flange portion, the stem portion being disposed between the ball head and the first flange portion.

According to some embodiments of the utility model, the shaft is tapered, the shaft having opposite first and second ends, the first end having a smaller cross-sectional area than the second end;

the first end portion is connected with the ball head, and the second end portion is connected with the first flange portion.

According to some embodiments of the utility model, the first cover body comprises a first supporting part and a first flange, the first flange is arranged on the outer surface of the first supporting part in a protruding mode, the second cover body comprises a second supporting part and a second flange, and the second flange is arranged on the outer surface of the second supporting part in a protruding mode;

the ball head is rotatably arranged between the first supporting part and the second supporting part, the surfaces of the first supporting part and the second supporting part facing each other form the second spherical inner surface, and the first flange and the second flange form the second flange part.

The mining dump truck provided by the embodiment of the utility model comprises any one of the spherical hinge bearings.

One embodiment of the above utility model has at least the following advantages or benefits:

according to the spherical hinge bearing provided by the embodiment of the utility model, the spherical center of the first spherical inner surface of the spherical bowl coincides with the center of the end surface, and the surface, facing each other, of the first cover body and the second cover body forms the second spherical inner surface matched with the spherical outer surface, so that the ball head of the spherical pin can swing at a larger angle relative to the spherical bowl, for example, the swing angle can be more than or equal to 15 degrees, and the spherical hinge bearing can bear larger axial force and radial force, and has the advantages of simple structure, convenience in installation and high reliability.

Drawings

Fig. 1 is a schematic perspective view of a spherical hinge bearing according to an embodiment of the present utility model.

Fig. 2 showsbase:Sub>A cross-sectional view ofbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 shows a cross-sectional view of the bowl of fig. 2.

Fig. 4 shows a schematic view of the ball pin of fig. 1.

Fig. 5 shows a schematic top view of the first cover/second cover.

Wherein reference numerals are as follows:

100. ball bowl

110. First spherical inner surface

120. End face

130. Oil filling hole

140. Oil guide groove

150. Chamfering tool

300. Ball pin

310. Ball head

311. Spherical outer surface

320. Rod part

321. First end portion

322. Second end portion

330. First flange part

331. First bolt hole

500. Sealing cover

510. First cover body

511. A first support part

512. A first flange

520. Second cover body

521. A second supporting part

522. Second flange

530. Second spherical inner surface

540. Second flange part

541. Second bolt hole

600. Gasket ring

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

As shown in fig. 1 and 2, fig. 1 isbase:Sub>A perspective view schematically showingbase:Sub>A spherical hinge bearing according to an embodiment of the present utility model, and fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1. The spherical hinge bearing of the embodiment of the utility model can be connected between two parts capable of swinging relatively so as to realize the relative swinging between the two parts and bear the axial force and the radial force between the two parts.

The ball pivot bearing of the embodiment of the present utility model includes a ball bowl 100, a ball pin 300, and a cover 500. The ball pin 300 is rotatably coupled to the ball bowl 100, and the cover 500 serves to prevent the ball pin 300 from being separated from the ball bowl 100. The bowl 100 and the cover 500 are fixedly attached to one of the components and the pin 300 is fixedly attached to the other component.

As an example, one of the components may be a bearing housing and the other component may be a suspension cylinder, knuckle, etc.

It will be understood that the terms "comprising," "including," and "having," and any variations thereof, are intended to cover non-exclusive inclusions in the embodiments of the utility model. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

The bowl 100 has a first spherical inner surface 110, the first spherical inner surface 110 being hemispherical. Ball pin 300 includes a ball head 310 having a spherical outer surface 311, with spherical outer surface 311 conforming to the shape of first spherical inner surface 110. The sealing cover 500 comprises a first cover body 510 and a second cover body 520 which are butted with each other, the ball head 310 is rotatably arranged between the first cover body 510 and the second cover body 520, the surfaces of the first cover body 510 and the second cover body 520 which face each other form a second spherical inner surface 530, and the second spherical inner surface 530 is partially spherical and is matched with the shape of the spherical outer surface 311. The side of the ball bowl 100 facing the cover 500 has an end surface 120, and the center of the first spherical inner surface 110 coincides with the center of the end surface 120.

According to the spherical hinge bearing provided by the embodiment of the utility model, through the design that the spherical center of the first spherical inner surface 110 of the spherical bowl 100 coincides with the center of the end surface 120 and the surface, facing each other, of the first cover body 510 and the second cover body 520 forms the second spherical inner surface 530 matched with the spherical outer surface 311, the ball head 310 of the spherical pin 300 can swing at a larger angle relative to the spherical bowl 100, for example, the swing angle can be more than or equal to 15 degrees, and the spherical hinge bearing can bear larger axial force and radial force, and has the advantages of simple structure, convenience in installation and high reliability.

With continued reference to fig. 1, as an example, the bowl 100 may be cylindrical with the bottom surface being the end surface 120 of the bowl 100. The first spherical inner surface 110 is concave in the cylindrical bottom surface.

In one embodiment, the bottom center of the hemispherical first spherical inner surface 110 is disposed on the axis of the cylindrical bowl 100.

It will be appreciated that when the bowl 100 is cylindrical, the center of the end face 120 of the bowl 100 is the center of the cylindrical bottom surface. Thus, the center of the first spherical inner surface 110 is centered on the cylindrical bottom surface.

As shown in fig. 2 and 3, fig. 3 shows a cross-sectional view of the bowl 100 of fig. 2. The spherical outer surface 311 of the ball head 310 is in clearance fit with the first spherical inner surface 110 of the bowl 100. The bowl 100 has an oil filling hole 130, and the oil filling hole 130 penetrates through the outer surface of the bowl 100 and the first spherical inner surface 110. Through the oil injection hole 130, lubricating oil can be injected into the gap between the first spherical inner surface 110 and the spherical outer surface 311, which is beneficial to lubrication of the spherical hinge bearing.

When the ball bowl 100 is cylindrical, the oil filling hole 130 is formed on a side of the ball bowl 100 facing away from the end surface 120, and penetrates through the top surface of the ball bowl 100 and the first spherical inner surface 110.

With continued reference to fig. 3, the first spherical inner surface 110 is provided with an oil guiding groove 140, and the oil guiding groove 140 communicates with the oil filling hole 130. Lubricating oil injected from the oil injection hole 130 may be stored in the oil guide groove 140, facilitating lubrication between the ball head 310 and the ball bowl 100.

The oil injection hole 130 penetrates the bottom center of the first spherical inner surface 110. The number of oil guide grooves 140 is plural, and the plurality of oil guide grooves 140 are radially arranged from the oil filling hole 130. The plurality of oil guiding grooves 140 are radially arranged from the oil filling hole 130, so that the plurality of oil guiding grooves 140 are more uniformly arranged on the first spherical inner surface 110, and the lubrication effect is better. The lubricating oil injected from one oil injection hole 130 can flow directly into the plurality of oil guide grooves 140.

The bowl 100 has a chamfer 150 on the side facing away from the cover 500. By design of the chamfer 150, the ball bowl 100 is facilitated to extend into the bearing housing, making installation simpler.

As an example, chamfer 150 may be a 45 ° chamfer. Of course, in other embodiments, chamfer 150 may be an arcuate chamfer.

As shown in fig. 1, 2 and 4, fig. 4 is a schematic view of the ball pin 300 of fig. 1. Ball stud 300 also includes a shank portion 320 and a first flange portion 330, with shank portion 320 being disposed between ball head 310 and first flange portion 330. The first flange portion 330 is for connection with other components, such as a suspension cylinder, a knuckle, etc.

The first flange portion 330 has first bolt holes 331, and the number of the first bolt holes 331 may be plural, and the plurality of first bolt holes 331 may be uniformly arranged along the circumferential direction of the first flange portion 330.

The stem 320 is tapered, the stem 320 having opposite first and second ends 321, 322, the cross-sectional area of the first end 321 being smaller than the cross-sectional area of the second end 322. The first end 321 is connected to the ball head 310, and the second end 322 is connected to the first flange 330. That is, the end of the shaft 320 connected to the ball head 310 is thinner, and the end of the shaft 320 connected to the first flange 330 is thicker, so that the structure of being thinner at the top and thicker at the bottom not only enables the ball pivot bearing to have a larger swing angle, but also ensures that the ball pin 300 has a strong bending resistance.

As an example, ball head 310, stem portion 320 and first flange portion 330 are integrally formed such that ball stud 300 has greater resistance to bending.

As shown in fig. 1 and 5, fig. 5 shows a schematic top view of the first cover 510/second cover 520. The first cover 510 and the second cover 520 of the closure 500 are two identical structural components, and the first cover 510 and the second cover 520 are butted against each other and surround the ball head 310.

The first cover 510 includes a first support portion 511 and a first flange 512, the first flange 512 is protruded on an outer surface of the first support portion 511, the second cover 520 includes a second support portion 521 and a second flange 522, and the second flange 522 is protruded on an outer surface of the second support portion 521. The ball head 310 is rotatably disposed between the first support portion 511 and the second support portion 521, the surfaces of the first support portion 511 and the second support portion 521 facing each other form a second spherical inner surface 530, and the first flange 512 and the second flange 522 form a second flange 540. The second flange portion 540 is for fixed connection to the bearing housing.

The second flange portion 540 has a plurality of second bolt holes 541, and the plurality of second bolt holes 541 are uniformly arranged along the circumferential direction of the second flange portion 540.

The first cover 510 and the second cover 520 have the following functions: in one aspect, acts to support ball head 310 and to define ball head 310 in bowl 100; on the other hand, the function of fixing the spherical hinge bearing is achieved.

The second spherical inner surface 530 formed by the first cover 510 and the second cover 520 is adapted to the shape of the spherical outer surface 311 of the ball head 310, so that the ball head 310 and the cover 500 can swing relatively. The smallest cross-sectional dimension of second spherical inner surface 530 should be smaller than the largest cross-sectional dimension of ball head 310 such that first cover 510 and second cover 520 may define ball head 310 within bowl 100.

Referring back to fig. 1 and 2, the spherical hinge bearing further includes a washer 600, and the washer 600 is disposed on the second flange portion 540 for adjusting the installation of the second flange portion 540 with the bearing housing.

When the ball pivot bearing is installed, the ball head 310 of the ball pin 300 is firstly installed in a ball hole formed by the ball bowl 100 and the sealing cover 500. The bowl 100 and the cover 500 are then installed into the bearing housing, and the second flange 540 of the cover 500 is fixedly coupled to the bearing housing using bolts. Finally, bolts are used to fixedly attach the first flange portion 330 of the ball pin 300 to other components (e.g., suspension cylinders, knuckles, etc.).

On the other hand, the utility model also provides a mining dump truck, which comprises the spherical hinge bearing of any embodiment. The mining dump truck provided by the embodiment of the utility model has all the advantages and beneficial effects of any one embodiment, and the details are not repeated here.

Of course, the spherical hinge bearing according to the embodiment of the present utility model may also be applied to other vehicles or other fields, and is not listed here.

It will be appreciated that the various embodiments/implementations provided by the utility model may be combined with one another without conflict and are not illustrated here.

In the inventive embodiments, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments of the utility model will be understood by those skilled in the art according to the specific circumstances.

In the description of the embodiments of the utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the utility model and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the utility model and is not intended to limit the embodiment of the utility model, and various modifications and variations can be made to the embodiment of the utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims (10)

1. A spherical hinge bearing, comprising:

a bowl having a first spherical inner surface, the first spherical inner surface being hemispherical;

a ball pin comprising a ball head having a spherical outer surface, the spherical outer surface being adapted to the shape of the first spherical inner surface; and

the sealing cover comprises a first cover body and a second cover body which are in butt joint, the ball head is rotatably arranged between the first cover body and the second cover body, the surfaces of the first cover body and the second cover body, which are opposite to each other, form a second spherical inner surface, and the second spherical inner surface is partially spherical and is matched with the shape of the spherical outer surface;

the ball bowl is provided with an end face on one side facing the sealing cover, and the center of the first spherical inner surface coincides with the center of the end face.

2. The spherical hinge bearing according to claim 1, wherein the ball bowl has an oil filler hole penetrating an outer surface of the ball bowl and the first spherical inner surface.

3. The spherical hinge bearing according to claim 2, wherein the first spherical inner surface is provided with an oil guide groove, the oil guide groove being in communication with the oil filler hole.

4. The spherical hinge bearing according to claim 3, wherein the oil injection hole penetrates a bottom center of the first spherical inner surface;

the number of the oil guide grooves is multiple, and the oil guide grooves are radially arranged from the oil filling holes.

5. The spherical hinge bearing according to claim 1, wherein the spherical bowl is cylindrical, and a bottom surface of the spherical bowl is the end surface.

6. The spherical hinge bearing according to claim 1, wherein a side of the bowl facing away from the cover has a chamfer.

7. The ball pivot bearing of claim 1, wherein the ball pin further comprises a stem portion and a first flange portion, the stem portion being disposed between the ball head and the first flange portion.

8. The spherical hinge bearing according to claim 7, wherein the shaft is tapered, the shaft having opposed first and second ends, the first end having a cross-sectional area that is less than a cross-sectional area of the second end;

the first end portion is connected with the ball head, and the second end portion is connected with the first flange portion.

9. The spherical hinge bearing according to claim 1, wherein the first cover body comprises a first supporting portion and a first flange, the first flange is protruding on the outer surface of the first supporting portion, the second cover body comprises a second supporting portion and a second flange, and the second flange is protruding on the outer surface of the second supporting portion;

the ball head is rotatably arranged between the first supporting part and the second supporting part, the surfaces of the first supporting part and the second supporting part facing each other form the second spherical inner surface, and the first flange and the second flange form the second flange part.

10. A mining dump truck, characterized by comprising the spherical hinge bearing according to any one of claims 1 to 9.

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