阅读说明：本技术 麦弗逊式独立悬挂装置及车辆 (Macpherson type independent suspension device and vehicle ) 是由 吕汉勋 杨涛 唐来年 于 2020-07-14 设计创作，主要内容包括：本发明涉及车辆技术领域,提出了一种麦弗逊式独立悬挂装置及车辆。麦弗逊式独立悬挂装置包括主销、转向节、控制臂总成以及防护机构,主销连接转向节和控制臂总成；防护机构位于主销的周向外侧,且夹设于转向节和控制臂总成之间,以在转向节和控制臂总成之间形成密封空间；其中,防护机构包括固定体和联动体,固定体与控制臂总成相连接,联动体的一端与转向节相抵接,联动体的另一端相对于固定体可活动地设置。防护机构将转向节和控制臂总成之间的空隙进行了密封,从而可以防止外界杂质进入到控制臂总成和主销的连接处。(The invention relates to the technical field of vehicles, and provides a Macpherson type independent suspension device and a vehicle. The Macpherson type independent suspension device comprises a main pin, a steering knuckle, a control arm assembly and a protection mechanism, wherein the main pin is connected with the steering knuckle and the control arm assembly; the protection mechanism is positioned on the circumferential outer side of the kingpin and clamped between the steering knuckle and the control arm assembly to form a sealed space between the steering knuckle and the control arm assembly; the protection mechanism comprises a fixed body and a linkage body, the fixed body is connected with the control arm assembly, one end of the linkage body is abutted against the steering knuckle, and the other end of the linkage body is movably arranged relative to the fixed body. The protection mechanism seals a gap between the steering knuckle and the control arm assembly, so that external impurities can be prevented from entering a joint of the control arm assembly and the main pin.)

1. A macpherson independent suspension, comprising:

a kingpin (10);

a knuckle (20);

a control arm assembly (30), the kingpin (10) connecting the steering knuckle (20) and the control arm assembly (30);

a guard mechanism (40), the guard mechanism (40) being located on a circumferential outer side of the kingpin (10) and interposed between the knuckle (20) and the control arm assembly (30) to form a sealed space (43) between the knuckle (20) and the control arm assembly (30);

the protection mechanism (40) comprises a fixed body (41) and a linkage body (42), the fixed body (41) is connected with the control arm assembly (30), one end of the linkage body (42) is abutted to the steering knuckle (20), and the other end of the linkage body (42) is movably arranged relative to the fixed body (41).

2. The macpherson independent suspension device according to claim 1, wherein the fixed body (41) is formed with a groove (411), and a part of the interlocking body (42) is inserted in the groove (411).

3. Macpherson independent suspension device according to claim 2, characterized in that the fixed body (41) comprises:

a securing ring (412), the securing ring (412) disposed on the control arm assembly (30);

the pressing plate (413), the pressing plate (413) sets up the fixed ring (412) keep away from one side of control arm assembly (30), form between pressing plate (413) and fixed ring (412) recess (411).

4. The macpherson independent suspension device according to claim 2 or 3, wherein the interlocking body (42) comprises:

a protective pipe (421), wherein one end of the protective pipe (421) is abutted with the steering knuckle (20);

the rotating ring (422), the rotating ring (422) is provided with a projection (423), and the projection (423) is inserted into the groove (411);

the rotating ring clamp (424), rotating ring clamp (424) with rotating ring (422) are connected, the part clamp of protective tube (421) is in rotating ring clamp (424) with rotating ring (422) between.

5. The macpherson independent suspension device according to claim 4, wherein the linkage body (42) further comprises an end cap (425), the end cap (425) being connected to the shield tube (421), the end cap (425) being attached to the knuckle (20), the macpherson independent suspension device further comprising:

the spacer bush (50) is sleeved on the kingpin (10), the spacer bush (50) is fixedly arranged relative to the kingpin (10), and one end of the spacer bush (50) is abutted to the end cover (425) so as to press the end cover (425) onto the steering knuckle (20).

6. The McPherson independent suspension device as claimed in claim 5, wherein the protection tube (421) is a rubber bellows, the end cap (425) is a metal end cap, and the spacer (50) is clamped with the protection tube (421), so that the protection tube (421) and the end cap (425) are relatively and fixedly connected through the spacer (50).

7. The McPherson independent suspension of claim 5, further comprising a suspension gland (60), the control arm assembly (30) comprising:

the control arm (31), the control arm (31) is provided with a bearing groove (311), and the fixed body (41) is connected with the control arm (31);

a first bearing (32), wherein the first bearing (32) is arranged in the bearing groove (311), and one end of the main pin (10) is arranged in the first bearing (32) in a penetrating way;

the front suspension end cover (33), the front suspension end cover (33) is connected with one end of the control arm (31) far away from the fixed body (41), and the front suspension end cover (33) is abutted with an outer ring (321) of the first bearing (32);

the suspension gland (60) is connected with the main pin (10), and two ends of an inner ring (322) of the first bearing (32) are respectively abutted against the spacer bush (50) and the suspension gland (60).

8. The mcpherson independent suspension device according to claim 1, wherein the control arm assembly (30) comprises a control arm (31), one end of the kingpin (10) being rotatably inserted into the control arm (31);

wherein at least one of the control arm (31) and the knuckle (20) is integrally cast.

9. The mcpherson independent suspension device according to claim 1, wherein a conical hole (21) is formed in the steering knuckle (20), the kingpin (10) comprises a conical section (11) matched with the conical hole (21), the conical section (11) is arranged in the conical hole (21) in a penetrating mode, and the kingpin (10) is fixedly matched with the steering knuckle (20).

10. A vehicle comprising a macpherson independent suspension according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of vehicles, in particular to a Macpherson type independent suspension device and a vehicle.

Background

With the continuous development of the mining industry, heavy mining dump trucks are widely applied, and particularly with the continuous development of heavy-duty technologies, the application market of large-tonnage mine cars is getting larger and larger. The suspension is one of important components of the mining electric wheel dumper, all acting force and moment acting between wheels and a frame are transmitted, impact load is relieved, vibration is attenuated, smoothness of running and stability of operation are guaranteed, and the requirements on mine car suspension are high due to the fact that mine road conditions are complex and the environment is severe. Therefore, the design of a reasonable, stable and reliable suspension structure directly determines the maintenance cost and the service life of the mine car, and the suspension reliability directly influences the development of the mine car industry.

Disclosure of Invention

The invention provides a Macpherson type independent suspension device and a vehicle, which are used for preventing external impurities from entering a joint of a main pin and a control arm assembly.

According to a first aspect of the present invention, there is provided a macpherson independent suspension, comprising:

a kingpin;

a knuckle;

the main pin is connected with the steering knuckle and the control arm assembly;

the protection mechanism is positioned on the circumferential outer side of the kingpin and clamped between the steering knuckle and the control arm assembly so as to form a sealed space between the steering knuckle and the control arm assembly;

the protection mechanism comprises a fixed body and a linkage body, the fixed body is connected with the control arm assembly, one end of the linkage body is abutted against the steering knuckle, and the other end of the linkage body is movably arranged relative to the fixed body.

In one embodiment of the present invention, the fixing body is formed with a groove, and a portion of the interlocking body is inserted into the groove.

In one embodiment of the present invention, the fixing body includes:

the fixing ring is arranged on the control arm assembly;

the clamp plate, the clamp plate setting is kept away from the one side of control arm assembly at solid fixed ring, forms the recess between clamp plate and the solid fixed ring.

In one embodiment of the present invention, a linkage includes:

one end of the protective pipe is abutted with the steering knuckle;

the rotating ring is provided with a bulge which is inserted in the groove;

the rotating ring clamp is connected with the rotating ring, and part of the protective tube is clamped between the rotating ring clamp and the rotating ring.

In one embodiment of the present invention, the linkage further includes an end cap, the end cap is connected to the protection tube, the end cap is attached to the knuckle, and the macpherson type independent suspension device further includes:

and the spacer bush is sleeved on the main pin, is fixedly arranged relative to the main pin, and one end of the spacer bush is abutted against the end cover so as to tightly press the end cover on the steering knuckle.

In one embodiment of the invention, the protective pipe is a rubber corrugated pipe, the end cover is a metal end cover, and the spacer bush is clamped with the protective pipe, so that the protective pipe and the end cover are relatively and fixedly connected through the spacer bush.

In one embodiment of the invention, the macpherson independent suspension further comprises a suspension gland, and the control arm assembly comprises:

the control arm is provided with a bearing groove, and the fixing body is connected with the control arm;

the first bearing is arranged in the bearing groove, and one end of the main pin penetrates through the first bearing;

the front suspension end cover is connected with one end, far away from the fixed body, of the control arm, and abuts against the outer ring of the first bearing;

the suspension gland is connected with the main pin, and two ends of the inner ring of the first bearing are respectively abutted with the spacer bush and the suspension gland.

In one embodiment of the invention, the control arm assembly comprises a control arm, wherein one end of a main pin is rotatably arranged in the control arm;

wherein at least one of the control arm and the knuckle is integrally cast.

In one embodiment of the invention, the steering knuckle is provided with a tapered hole, the kingpin comprises a tapered section matched with the tapered hole, the tapered section penetrates through the tapered hole, and the kingpin is fixedly matched with the steering knuckle.

According to a second aspect of the present invention, there is provided a vehicle comprising a macpherson independent suspension as described above.

According to the Macpherson type independent suspension device, the main pin is connected with the steering knuckle and the control arm assembly, the protection mechanism is arranged between the steering knuckle and the control arm assembly and arranged on the circumferential outer side of the main pin, namely the protection mechanism seals a gap between the steering knuckle and the control arm assembly, so that external impurities can be prevented from entering the connection position of the control arm assembly and the main pin.

Drawings

Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is an exploded view of a McPherson independent suspension apparatus according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating a McPherson independent suspension arrangement according to an exemplary embodiment;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram illustrating a knuckle structure of a McPherson independent suspension according to an exemplary embodiment;

FIG. 5 is an exploded view of a control arm assembly of a McPherson independent suspension apparatus according to an exemplary embodiment;

FIG. 6 is a schematic diagram illustrating a control arm of a McPherson independent suspension apparatus, according to an exemplary embodiment;

FIG. 7 is an exploded view of a shield mechanism of a McPherson independent suspension system, according to an exemplary embodiment;

FIG. 8 is a schematic diagram illustrating a partial cross-sectional configuration of a shielding mechanism of a McPherson independent suspension apparatus in accordance with an exemplary embodiment;

fig. 9 is a partial schematic diagram illustrating a shielding mechanism of a macpherson independent suspension according to an exemplary embodiment.

The reference numerals are explained below:

10. a kingpin; 11. a tapered section; 12. mounting holes; 13. a second bearing; 14. a pin shaft; 20. a knuckle; 21. a tapered hole; 22. a steering mechanism mounting area; 30. a control arm assembly; 31. a control arm; 311. a bearing groove; 312. a lubricating oil hole; 313. mounting holes; 32. a first bearing; 321. an outer ring; 322. an inner ring; 33. a front overhang end cap; 34. a space ring; 35. a screw; 40. a protection mechanism; 41. a fixed body; 411. a groove; 412. a fixing ring; 413. pressing a plate; 42. a linkage body; 421. a protective tube; 422. a rotating ring; 423. a protrusion; 424. rotating the ring clamp; 425. an end cap; 43. sealing the space; 44. a first fastener; 45. a second fastener; 46. a third fastener; 50. a spacer sleeve; 60. and hanging the gland.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are accordingly to be regarded as illustrative in nature and not as restrictive.

In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the invention.

An embodiment of the present invention provides a macpherson independent suspension device, referring to fig. 1 to 9, including: a kingpin 10; a knuckle 20; the control arm assembly 30, the kingpin 10 connects the knuckle 20 and the control arm assembly 30; the protection mechanism 40 is positioned at the circumferential outer side of the kingpin 10, and is clamped between the steering knuckle 20 and the control arm assembly 30 to form a sealed space 43 between the steering knuckle 20 and the control arm assembly 30; the protection mechanism 40 includes a fixed body 41 and a linkage body 42, the fixed body 41 is connected to the control arm assembly 30, one end of the linkage body 42 is abutted to the steering knuckle 20, and the other end of the linkage body 42 is movably disposed relative to the fixed body 41.

The kingpin 10 of the macpherson type independent suspension according to an embodiment of the present invention connects the knuckle 20 and the control arm assembly 30, and by disposing the guard mechanism 40 between the knuckle 20 and the control arm assembly 30 and disposing the guard mechanism 40 at the circumferential outer side of the kingpin 10, that is, the guard mechanism 40 seals the gap between the knuckle 20 and the control arm assembly 30, it is possible to prevent foreign substances from entering the connection between the control arm assembly 30 and the kingpin 10.

It should be noted that, the end of the kingpin 10 away from the control arm assembly 30 is connected to the upper end of the frame, the knuckle 20 is connected to the wheel, and the control arm assembly 30 is connected to the lower end of the frame. The kingpin 10 is fixedly coupled to the knuckle 20, and the kingpin 10 is rotatable with respect to the control arm assembly 30. When the kingpin 10 and the knuckle 20 rotate, the interlocking body 42 of the protection mechanism 40 is driven to rotate relative to the fixed body 41 fixed on the control arm assembly 30, so that the protection mechanism 40 realizes dynamic sealing of the control arm assembly 30, that is, the sealed space 43 is always in a closed state, thereby preventing external impurities from entering the control arm assembly 30.

It should be noted that the linkage body 42 and the fixing body 41 both have through holes for the main pin 10 to pass through, so that the protection mechanism 40 is in a sleeved relationship with respect to the main pin 10, that is, the protection mechanism 40 is located at the circumferential outer side of the main pin 10.

In one embodiment, as shown in fig. 2 and 3, the protection mechanism 40 is composed of a fixed body 41 and a linkage body 42, the fixed body 41 is fixedly connected with the control arm assembly 30, one end of the linkage body 42 is fixed relative to the knuckle 20, and the other end of the linkage body 42 is movable relative to the fixed body 41, that is, when the knuckle 20 rotates, the linkage body 42 rotates along with the fixed body, at this time, the linkage body 42 rotates relative to the fixed body 41, but always forms a sealing contact with the fixed body 41, that is, it is ensured that the sealing space 43 is always in a closed state.

In one embodiment, as shown in fig. 9, the fixed body 41 is formed with a groove 411, and a portion of the coupling body 42 is inserted into the groove 411, thereby ensuring reliable sealing between the coupling body 42 and the fixed body 41.

It should be noted that, when the interlocking member 42 rotates, it contacts with the groove wall of the groove 411, and at this time, a lubricating component, such as lubricating oil, etc., may be disposed between the groove wall of the groove 411 and the interlocking member 42, and it is certainly not excluded that the friction coefficient of the structure of the interlocking member 42 and the structure of the fixed member 41 are small, and the friction force of the two is small, so that it is also possible to ensure that the interlocking member 42 rotates reliably, i.e., the normal rotation of the kingpin 10 and the knuckle 20 is not affected.

In one embodiment, the fixing body 41 and the control arm assembly 30 may be a unitary structure, a groove 411 is formed on the circumferential outer side of the fixing body 41, in this case, the groove 411 may be an annular groove, and the portion of the linkage body 42 disposed in the groove 411 is an elastic member, so as to be installed in the groove 411. Alternatively, the fixing body 41 and the control arm assembly 30 may be separate structures, that is, they are fixedly connected by a common connection method, and the groove 411 is formed on the circumferential outer side of the fixing body 41.

In one embodiment, as shown in fig. 7 to 9, the fixing body 41 includes: a fixing ring 412, the fixing ring 412 being disposed on the control arm assembly 30; the pressing plate 413 and the pressing plate 413 are disposed on a side of the fixing ring 412 away from the control arm assembly 30, and a groove 411 is formed between the pressing plate 413 and the fixing ring 412, so that when the interlocking body 42 is installed, the pressing plate 413 is separated from the fixing ring 412, and then after the interlocking body 42 is installed, the pressing plate 413 is connected with the fixing ring 412, and at this time, the portion of the interlocking body 42 disposed in the groove 411 may be a non-elastic body.

It should be noted that the fixing ring 412 is a boss structure, i.e. the circumferential outer surface of the fixing ring is formed with a step surface, so that after the pressing plate 413 is connected with the fixing ring 412, the groove 411 is formed between the pressing plate 413 and the fixing ring 412.

In one embodiment, as shown in fig. 7 and 8, the interlocking body 42 includes: one end of the protective pipe 421 is abutted against the steering knuckle 20; the rotating ring 422, the rotating ring 422 is provided with a protrusion 423, and the protrusion 423 is inserted into the groove 411; the rotating ring clamp 424, the rotating ring clamp 424 links with the rotating ring 422, and the part clamp of protective tube 421 is between rotating ring clamp 424 and rotating ring 422.

Specifically, as described with reference to fig. 8 and 9, the rotating ring clamp 424 is connected to the rotating ring 422 through the first fastening member 44, and an annular clamping groove is formed between the rotating ring clamp 424 and the rotating ring 422, at this time, a part of the protection tube 421 is clamped in the annular clamping groove, so that the protection tube 421, the rotating ring clamp 424, and the rotating ring 422 are relatively fixed.

In one embodiment, as shown in fig. 3 and 8, the interlocking body 42 further includes an end cap 425, the end cap 425 is connected to the protection tube 421, the end cap 425 is attached to the knuckle 20, and the macpherson independent suspension device further includes: and the spacer 50 is sleeved on the kingpin 10, the spacer 50 is fixedly arranged relative to the kingpin 10, and one end of the spacer 50 is abutted against the end cover 425 so as to press the end cover 425 onto the steering knuckle 20. The spacer 50 is arranged to be fixed relative to the kingpin 10 and press the end cap 425, so that the coupling body 42 and the knuckle 20 are fixed relative to each other, that is, the coupling body 42 and the knuckle 20 are fixed relative to each other, and the spacer 50 located inside the coupling body 42 is pressed and fixed without external fasteners, so that the parts can be detached conveniently.

In one embodiment, the protection tube 421 is a rubber bellows, the end cap 425 is a metal end cap, and the spacer 50 is clamped with the protection tube 421, so that the protection tube 421 and the end cap 425 are relatively and fixedly connected through the spacer 50. By providing the end cap 425 as a metal end cap, the spacer 50 is not crushed when it is pressed against the end cap 425, but the fixed arrangement of the interlocking body 42 relative to the knuckle 20 is ensured.

It should be noted that the protection tube 421 is a rubber corrugated tube, which can ensure the reliability of sealing and can realize the buffer function of the protection tube 421.

In one embodiment, the protection mechanism is a dynamic dustproof design, the pressing plate 413 and the fixing ring 412 are fixed to the control arm assembly 30 by the second fastening member 45, the pressing plate 413 and the fixing ring 412 are connected by the third fastening member 46 to form the fixing body 41, and the groove 411 is formed between the pressing plate 413 and the fixing ring 412. The protective tube 421, the rotating ring 422 and the rotating ring clamp 424 are fixedly connected, the end cover 425 is pressed on the steering knuckle 20 by the spacer 50, one end of the protective tube 421 is inserted into the end cover 425, namely the protective tube 421, the rotating ring 422, the rotating ring clamp 424 and the end cover 425 form the linkage body 42, the protrusion 423 is inserted into the groove 411, and when the linkage body 42 axially rotates, a dynamic dustproof function is achieved. The rotating ring 422 is made of a non-metal material to reduce the mass of the interlocking body 42, and may be made of nylon or the like.

In one embodiment, the spacer 50 is a tapered spacer.

In one embodiment, as shown in fig. 1 and 3, the macpherson independent suspension further includes a suspension gland 60, and the control arm assembly 30 includes: a control arm 31, wherein the control arm 31 is provided with a bearing groove 311, and the fixed body 41 is connected with the control arm 31; a first bearing 32, wherein the first bearing 32 is arranged in the bearing groove 311, and one end of the main pin 10 is arranged in the first bearing 32 in a penetrating way; a front overhang cover 33, wherein the front overhang cover 33 is connected with one end of the control arm 31 far away from the fixed body 41, and the front overhang cover 33 is abutted with the outer ring 321 of the first bearing 32; wherein, hang gland 60 and be connected with king pin 10, the both ends of the inner circle 322 of first bearing 32 respectively with spacer 50 and hang gland 60 butt.

In one embodiment, as shown in fig. 5, the control arm assembly 30 further includes: a spacer 34, both ends of the spacer 34 respectively abut against the outer ring 321 and the front suspension end cover 33, so that the front suspension end cover 33 abuts against the outer ring 321 through the spacer 34; both ends of the outer ring 321 are in contact with the control arm 31 and the spacer 34, respectively.

As shown in fig. 1 and 3, the suspension gland 60 is fixedly connected to one end of the kingpin 10, and at this time, the suspension gland 60 presses the inner ring 322 of the first bearing 32, thereby pressing the inner ring 322 against the spacer 50, so that the spacer 50 presses the end cap 425 against the knuckle 20.

As shown in fig. 3 and 5, the front overhang cover 33 is connected to the control arm 31 by a screw 35, and the spacer 34 is pressed against the outer ring 321 of the first bearing 32, so that the outer ring 321 is pressed against the inner wall of the control arm 31, that is, the outer ring 321 and the control arm 31 are relatively fixed, and the front overhang cover 33 forms a shield for one end of the bearing groove 311 away from the shielding mechanism 40, that is, the front overhang cover 33 and the shielding mechanism 40 respectively shield two ends of the bearing groove 311, so as to prevent external impurities from entering the bearing groove 311.

In one embodiment, the first bearing 32 is a spherical plain bearing.

In one embodiment, the front suspension gland 60 is threaded to one end of the king pin 10.

In one embodiment, as shown in fig. 5 and 6, the control arm assembly 30 includes a control arm 31, and one end of the kingpin 10 is rotatably inserted into the control arm 31; at least one of the control arm 31 and the steering knuckle 20 is integrally cast, so that the forming efficiency can be improved, and the structural stability is stronger, thereby being suitable for large-tonnage vehicles.

In one embodiment, the kingpin 10 may be implemented as a hydro-pneumatic spring.

In one embodiment, as shown in fig. 3 and 4, the knuckle 20 is provided with a tapered hole 21, the kingpin 10 includes a tapered section 11 adapted to the tapered hole 21, the tapered section 11 is inserted into the tapered hole 21, and the kingpin 10 is fixedly engaged with the knuckle 20. The taper fit of the kingpin 10 and the knuckle 20 allows for initial positioning of the two and ensures a relatively secure connection.

In one embodiment, as shown in FIG. 4, the steering knuckle 20 is provided with a steering mechanism mounting area 22, i.e., for attachment to a steering mechanism.

In one embodiment, as shown in fig. 6, the control arm 31 is of an "a" type design, and the control arm 31 is provided with a lubricating oil hole 312, and the lubricating oil hole 312 is communicated with the bearing groove 311.

The Macpherson type independent suspension device can be used for a large-tonnage electric drive mining dump truck, and comprises a long-service-life steering knuckle and a control arm which are integrally cast and formed, a dynamic dustproof mechanism is matched, and a high-performance adjustable hydro-pneumatic spring (namely a main pin) is arranged. The MacPherson type independent suspension device greatly improves the reliability and safety of suspension, ensures the operating stability and smoothness of the whole vehicle, can completely meet the performance requirements of the whole vehicle, and achieves ideal effects in mine application.

An embodiment of the invention also provides a vehicle comprising the macpherson independent suspension.

In one embodiment, the upper end of the frame of the vehicle is connected to the kingpin 10, the wheels of the vehicle are connected to the steering knuckle 20, and the lower end of the frame of the vehicle is connected to the control arm assembly 30.

Specifically, as shown in fig. 1, a mounting hole 12 is formed in the kingpin 10, a second bearing 13 is disposed in the mounting hole 12, and a pin 14 is inserted into the second bearing 13. The pin 14 and the second bearing 13 complete the suspension, whereby the mounting with the upper end of the frame is accomplished. The control arm 31 of the control arm assembly 30 is connected to the lower end of the frame through two coaxial mounting holes 313 at the lower end.

In one embodiment, the second bearing 13 is a spherical plain bearing.

In one embodiment, the vehicle is a mine car, and particularly can be a large-tonnage electric drive mining dump truck, and the Macpherson type independent suspension device can achieve dynamic dust prevention, is convenient to install, has good structural integrity, and has the advantages of being good in reliability, usability, maintainability and safety.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and exemplary embodiments be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.