CN111634167B - Wheel track adjusting device of suspension system and suspension system - Google Patents

Wheel track adjusting device of suspension system and suspension system Download PDF

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Publication number
CN111634167B
CN111634167B CN202010408104.1A CN202010408104A CN111634167B CN 111634167 B CN111634167 B CN 111634167B CN 202010408104 A CN202010408104 A CN 202010408104A CN 111634167 B CN111634167 B CN 111634167B
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cam
bolt
worm
hole
suspension
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CN111634167A (en
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赵伟鹏
陈文都
陈世旺
江新伟
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/004Mounting arrangements for axles
    • B60B35/006Mounting arrangements for axles with mounting plates or consoles fitted to axles
    • B60B35/007Mounting arrangements for axles with mounting plates or consoles fitted to axles for mounting suspension elements to axles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10Mounting of suspension elements
    • B60G2204/14Mounting of suspension arms
    • B60G2204/148Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention relates to a wheel track adjusting device of a suspension system and the suspension system, comprising: the upper part of the square supporting structure is provided with a sliding chute, and the lower part of the square supporting structure is provided with an opening; the cam mechanism is arranged on the square supporting structure and comprises a cam body, a through hole hinged with the sliding groove through a first bolt is formed in the upper portion of the cam body, the first bolt is used for being connected with the suspension frame connecting rod mechanism and can slide in the sliding groove, and a rotating center hole coaxially hinged with the opening is formed in the lower portion of the cam body; the worm mechanism penetrates through the square supporting structure and is located below the cam mechanism, the worm mechanism is in transmission connection with the cam mechanism, and when the worm mechanism rotates, the cam mechanism can rotate around the rotating center hole. The suspension system and the wheel track adjusting device thereof can realize stepless pitch change and can be used for vehicle type development of different levels.

Description

Wheel track adjusting device of suspension system and suspension system
Technical Field
The invention relates to the field of automobile parts, in particular to a wheel track adjusting device of a suspension system and the suspension system.
Background
With the development of economy and the improvement of living standard of people, automobiles become one of important tools for people to ride instead of walk. The development quantity and the speed of the current automobile models are continuously improved, meanwhile, the platform and the modularization require higher and higher sharing proportion of parts, and the wheel track of the wheels matched with the automobile models in different grades and different forms is different due to the fact that the wheel track of the wheels matched with the automobile models in different grades is different, and the wheel track of the shared suspension system can be required to be adjusted.
In the related art, a present wheel track adjusting device for a wheeled chassis vehicle includes: the suspension mounting seat is connected with the suspension cross arm, the suspension mounting seat is mounted on the sliding block, and the suspension cross arm is connected with the wheel; the sliding block is in sliding fit with a sliding rail fixed on a frame, the sliding rail is arranged along the direction parallel to the frame cross beam, a double-head acting hydraulic cylinder is arranged on the suspension mounting seat and can push the suspension mounting seat, the suspension cross arm and the wheel to move along the sliding rail; when the wheel track of the vehicle is changed according to the road condition, the double-end acting hydraulic cylinder is driven to realize the movement of the wheels, so that the wheel track is changed, and the double-end acting hydraulic cylinder is provided with a locking mechanism component fixed on the frame, and the suspension cross arm is locked with the frame of the vehicle when the suspension cross arm is in a non-moving state.
However, this type of wheel tread adjusting device adjusts according to the running condition of the vehicle to adjust a small wheel tread, has a complicated structure, is only suitable for adjusting the wheel tread of a wheel chassis of a special vehicle, cannot be used for the general purpose requirement of vehicle type development of different levels, and cannot meet the infinite adjustment of a large wheel tread of 20mm or more, so that vehicle types of cross-level cannot share a suspension system, and development cost and development time are increased.
Disclosure of Invention
The embodiment of the invention provides a wheel track adjusting device of a suspension system and the suspension system, and aims to solve the problems that in the related technology, the wheel track adjusting amount is small, the stepless adjustment of a large wheel track of more than 20mm cannot be met, cross-class vehicle types cannot share the suspension system, and the development cost and the development time are increased.
In a first aspect, there is provided a track adjusting apparatus of a suspension system, comprising: the upper part of the square supporting structure is provided with a sliding chute, and the lower part of the square supporting structure is provided with an opening; the cam mechanism is arranged on the square supporting structure and comprises a cam body, a through hole hinged with the sliding groove through a first bolt is formed in the upper portion of the cam body, the first bolt is used for being connected with the suspension frame connecting rod mechanism and can slide in the sliding groove, and a rotating center hole coaxially hinged with the opening is formed in the lower portion of the cam body; the worm mechanism penetrates through the square supporting structure and is located below the cam mechanism, the worm mechanism is in transmission connection with the cam mechanism, and when the worm mechanism rotates, the cam mechanism can rotate around the rotating center hole.
In some embodiments, the worm mechanism includes a screw rod, two ends of which are in threaded connection with a third nut fixed to the square support structure, and a worm body integrally disposed on the screw rod, and the worm body is in transmission connection with the cam mechanism.
In some embodiments, the upper half of the cam body is a cam, the through hole is formed in the top of the cam, the lower half of the cam body is a turbine, and the rotating central hole is formed in the joint of the cam and the turbine.
In some embodiments, the first bolt and the sliding groove are in sliding clearance fit, and one end of the first bolt is provided with a first nut matched with the first bolt.
In some embodiments, the chute is circular and the arc between the ends of the chute is at least 60 °.
In some embodiments, the rotating central hole is connected to the opening hole through a second bolt, the second bolt is in sliding clearance fit with the opening hole, and one end of the second bolt is fixed through a second nut.
In a second aspect, there is provided a suspension system comprising: the upper part of the square supporting structure is provided with a sliding chute, and the lower part of the square supporting structure is provided with an opening; the cam mechanism is arranged on the square supporting structure and comprises a cam body, a through hole hinged with the sliding groove through a first bolt is formed in the upper portion of the cam body, the first bolt can slide in the sliding groove, and a rotary center hole coaxially hinged with the opening is formed in the lower portion of the cam body; the worm mechanism penetrates through the square supporting structure and is positioned below the cam mechanism, the worm mechanism is in transmission connection with the cam mechanism, and when the worm mechanism is rotated, the cam mechanism can rotate around the rotating central hole; and one end of the suspension link mechanism is connected with the wheel in an assembling way, and the other end of the suspension link mechanism is connected with the first bolt.
In some embodiments, the suspension link mechanism includes a suspension hinge shaft passing through the first bolt, the suspension hinge shaft being movable along with the first bolt, and a suspension link welded at one end to the suspension hinge shaft, the suspension link being connected at the other end to the wheel.
In some embodiments, the worm mechanism includes a screw rod, two ends of which are in threaded connection with a third nut fixed to the square support structure, and a worm body integrally disposed on the screw rod, and the worm body is in transmission connection with the cam mechanism.
In some embodiments, the chute is circular and the arc between the ends of the chute is at least 60 °.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a wheel track adjusting device of a suspension system and the suspension system, wherein a suspension link mechanism is connected with a cam mechanism, the cam mechanism is in transmission fit with a worm mechanism, when the worm mechanism is rotated, a cam body can rotate around a rotating center hole at the lower part of the cam body, so that a first bolt at the upper part of the cam body drives the suspension link mechanism to swing together, the adjustment of the larger wheel track of the suspension system can be realized, the stepless adjustment of the large wheel track of more than 20mm can be met, the universal requirements of vehicle type development of different levels can be met, and the development cost and the development time are further reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a front view schematically illustrating a cam mechanism and a worm mechanism of a track adjusting device of a suspension system according to an embodiment of the present invention;
FIG. 2 is a schematic view of the drive details of the cam mechanism and worm mechanism of FIG. 1;
FIG. 3 is a schematic front view of a square support structure of a track adjustment apparatus for a suspension system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the motion envelope of the cam mechanism of FIG. 1;
FIG. 5 is a schematic front view of a suspension system according to an embodiment of the present invention;
FIG. 6 is a schematic left side view of a suspension system according to an embodiment of the present invention;
FIG. 7 is a schematic top view of a suspension system according to an embodiment of the present invention;
FIG. 8 is a schematic view of a suspension system assembled with a wheel according to an embodiment of the present invention;
FIG. 9 shows a maximum limit position L of a track width of a suspension system according to an embodiment of the present inventionLong and longMinimum limit position L of distance to wheelShort lengthSchematic representation.
In the figure: 100. a wheel tread adjusting device; 1. a square support structure; 11. a chute; 12. opening a hole; 13. grooving; 2. a cam mechanism; 21. a cam body; 211. a through hole; 22. a first bolt; 23. a first nut; 24. a second bolt; 25. a second nut; 212. rotating the central hole; 213. a turbine tooth flank; 214. a through groove; 3. a worm mechanism; 31. a screw rod; 32. a third nut; 33. a worm body; 331. a worm helicoid; 4. a suspension link mechanism; 41. a suspension hinge shaft; 42. a suspension link; 5. a wheel; 6. a chassis bracket rail; A. a left extreme position; B. a neutral position; C. the right extreme position.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a wheel track adjusting device of a suspension system and the suspension system, which can solve the problems that the wheel track adjusting amount is small, the stepless adjustment of a larger wheel track of more than 20mm cannot be met, the suspension system cannot be shared by cross-class vehicle types, and the development cost and the development time are increased in the related technology.
Referring to fig. 1 and 3, a track adjusting apparatus 100 for a suspension system according to an embodiment of the present invention includes: a square support structure 1; the cam mechanism 2 is arranged at the upper part of the square supporting structure 1; and the worm mechanism 3 is arranged at the lower part of the square supporting structure 1 in a penetrating way and is in transmission connection with the lower surface of the cam mechanism 2.
Referring to fig. 3, in some embodiments, the square support structure 1 may be a square box and an integrated welded structure, in other embodiments, the square support structure 1 may also be a plate, an upper portion of the square support structure may be provided with a sliding groove 11, the sliding groove 11 is preferably circular arc-shaped, an arc between two ends of the sliding groove 11 is at least 60 °, an upper portion of the square support structure 1 may be provided with a slot 13, the slot 13 penetrates through a top surface of the square support structure 1 upward, the slot 13 penetrates through two opposite side surfaces of the square support structure 1 left and right in a horizontal direction, and a bottom end of the slot 13 may extend downward below the sliding groove 11; the middle lower part of square bearing structure 1 can be equipped with trompil 12, trompil 12 with the spout 11 is concentric, the relative both sides of square bearing structure 1 bottom can be equipped with the face of weld respectively, and two third nuts 32 correspond respectively and weld in two on the face of weld, thereby with square bearing structure 1 fixed connection is as an organic whole, wherein the size of third nut 32 can select for use different standard components according to actual conditions.
Referring to fig. 1 and 6, in some alternative embodiments, the cam mechanism 2 may be installed inside the square support structure 1, when the square support structure 1 is a plate, the cam mechanism 2 may be installed on one side of the square support structure, the cam mechanism 2 may include a cam body 21, an upper half portion of the cam body 21 may be designed as a cam, a lower half portion of the cam body 21 may be designed as a semi-circular turbine, a rotating central hole 212 is formed at a connection portion of the cam and the turbine, the rotating central hole 212 is located at a lower portion of the cam body 21 and concentric with the turbine, the rotating central hole 212 is coaxial with the opening 12, the rotating central hole 212 and the opening 12 may be hinged by a second bolt 24, the second bolt 24 includes a second head and a second shaft portion connected with the second head, one section of the second shaft part close to the second head part can be an optical axis, one section far away from the second head part can be a threaded shaft, a second pin hole is formed in the threaded shaft of the second head part, the second shaft part can penetrate through one plate surface of the square supporting structure 1 to the other plate surface of the square supporting structure 1, so that the threaded shafts of the second head part and the second shaft part are respectively positioned at two opposite sides of the square supporting structure 1, the optical axis of the second shaft part penetrates through the rotary center hole 212 and the open hole 12, the optical axis of the second shaft part and the rotary center hole 212 are in sliding clearance fit, the cam body 21 can rotate relative to the second bolt 24, a second nut 25 matched with the second bolt can be arranged on the threaded shaft of the second bolt 24, and the second nut 25 can fix the second bolt 24 on the square supporting structure 1, and the second nut 25 can be screwed down, so that the second nut 25 and the second head part are in close contact with the two opposite plate surfaces of the square supporting structure 1, and then a cotter pin can be installed in the second pin hole for secondary protection, so as to prevent the positioning failure caused by the loosening of the threads of the threaded shafts of the second nut 25 and the second shaft part, wherein the second bolt 24 and the second nut 25 are standard parts, and the parameter size is matched with the rotating central hole 212 and the aperture of the open hole 12.
Referring to fig. 1 and 6, in some embodiments, the surface of the turbine may be provided with a turbine tooth surface 213, the turbine tooth surface 213 is preferably a helical tooth, and the shape and size of the turbine may be adjusted according to actual installation conditions, and at the same time, the helical tooth of the turbine tooth surface 213 satisfies a self-locking structure, and parameters of the helical tooth may be adjusted; the top of the cam may be provided with a through hole 211 corresponding to the sliding slot 11, the through hole 211 and the rotating center hole 212 may both be located on a center line of symmetry of the cam body 21, a center of the through hole 211 is located on an axis of a longitudinal direction of the sliding slot 11, a diameter of the through hole 211 is the same as a width of the sliding slot 11, the through hole 211 is hinged to the sliding slot 11 through a first bolt 22, the first bolt 22 includes a first head and a first shaft connected to the first head, a section of the first shaft near the first head may be an optical axis, a section far away from the first head may be a threaded shaft, and the threaded shaft of the first head is provided with a first pin hole, the first shaft may be inserted from one plate surface of the square support structure 1 to another plate surface opposite thereto, so that the threaded shafts of the first head and the first shaft are located on opposite sides of the square support structure 1 respectively, and the optical axis of the first axial part is arranged in the sliding groove 11 and the through hole 211 in a penetrating manner, and the optical axis of the first axial part is in sliding clearance fit with the sliding groove 11 and the through hole 211.
Referring to fig. 1, 4 and 6, in some alternative embodiments, a first nut 23 may be disposed on the threaded shaft of the first bolt 22, and after the first nut 23 is mounted on the threaded shaft of the first bolt 22, a cotter pin is mounted in the first pin hole for secondary protection, so as to prevent the threaded shafts of the first nut 23 and the first shaft from being loosened to cause positioning failure, a distance between the first nut 23 and the first head is greater than a distance between two opposite plate surfaces of the square support structure 1, so that the first bolt 22 and the square support structure 1 are not fixed, the first bolt 22 may slide in the sliding groove 11, the through hole 211 is disposed on the first shaft, and a diameter of the through hole 211 may be slightly greater than a diameter of an optical axis of the first shaft, the first bolt 22 can drive the through hole 211 to swing together while sliding in the sliding groove 11, the swing track of the through hole 211 is the same as the arc of the sliding groove 11, the first bolt 22 and the first nut 23 are standard parts, and the parameter size is matched with the aperture of the through hole 211 and the width of the sliding groove 11.
Referring to fig. 1, 4 and 6, in some embodiments, the upper portion of the cam is provided with a through slot 214 penetrating through the top and two opposite sides of the cam, the bottom end of the through slot 214 extends downward beyond the bottom end of the slot 13, and the optical axis of the first shaft portion can be located in the through slot 214, the optical axis of the first shaft portion can be connected with the suspension linkage mechanism 4, and the through slot 214 is used for abdicating and installing the suspension linkage mechanism 4, when the first bolt 22 slides in the through slot 11, the suspension linkage mechanism 4 can move left and right along with the first shaft portion, the slot 13 on the square support structure 1 is used for abdicating a space for moving the suspension linkage mechanism 4, since the free end of the suspension linkage mechanism 4 is connected with a wheel 5, by moving the suspension linkage mechanism 4 corresponding to each wheel 5, the track width between the two wheels 5 can be adjusted.
Referring to fig. 1, 2 and 5, in some alternative embodiments, the worm mechanism 3 may be located below the cam mechanism 2, the worm mechanism 3 may include a lead screw 31, both ends of the lead screw 31 may be provided with rotating steps, a worm body 33 may be integrally disposed at a middle position of the lead screw 31, the worm body 33 is preferably disposed in the square support structure 1 and located right below the cam body 21, a worm spiral surface 331 in transmission connection with the worm wheel tooth surface 213 is disposed on a surface of the worm body 33, a contact surface between the worm wheel tooth surface 213 and the worm spiral surface 331 reaches a self-locking angle, since the lead screw 31 and the worm body 33 are integrally disposed, the structure is simple and reliable, the worm body 33 may be integrally driven to rotate by rotating the rotating steps at both ends of the lead screw 31, and the rotating steps at both ends of the lead screw 31 and the worm body 33 are disposed to be connected to the third nut 32 The screw rod 31 can penetrate through the third nut 32, and the screw rod 31 can move left and right while rotating on the third nut 32 by rotating the rotating step, so as to drive the worm body 33 to rotate; in other embodiments, one end of the screw rod 31 may be provided with the thread surface, and an optical axis may be set between the rotation step at the other end and the worm body 33; the rotating steps at two ends and the worm body 33 can be set to be optical axes according to the situation; the third nut 32 fixed on the square supporting structure 1 is arranged to position the screw rod 31, so that the screw rod 31 can be supported, the stress of the worm gear tooth surface 213 can be reduced, and the third nut 32 is arranged to be matched with the screw surface on the screw rod 31, so that abnormal noise caused by backlash when a vehicle runs severely under the extreme load can be prevented.
Referring to fig. 4, in some embodiments, the rotation step can be rotated clockwise by a wrench, the screw rod 31 drives the worm body 33 to rotate, the cam body 21 rotates clockwise around the rotation central hole 212 from the middle position B through the transmission of the worm spiral surface 331 and the worm gear tooth surface 213, the first bolt 22 and the through hole 211 move rightward from the symmetrical center line position of the sliding chute 11, and the suspension link mechanism 4 is driven to move rightward together until reaching the right limit position C at the rightmost end of the sliding chute 11, the through hole 211 is far away from the rotation central hole 212 due to the through hole 211 being located at the top position of the cam body 21, and when the cam body 21 rotates a certain angle around the rotation central hole 212, the through hole 211 and the first bolt 22 can move a large distance, thereby enabling the suspension link mechanism 4 to adjust the track width to a greater extent; similarly, the rotating step can be rotated counterclockwise by using a wrench, so that the first bolt 22 drives the suspension link mechanism 4 to move leftward from the middle position B until reaching the left limit position a at the leftmost end of the sliding slot 11, so that the first bolt 22 and the cam body 21 can rotate at any angle within a motion envelope range of at least ± 30 °, and after the rotation angle of the cam body 21 is adjusted according to the required wheel track, the rotating step is stopped, and the first nut 23 at one end of the first bolt 22 is screwed, so that the first head and the first nut 23 clamp the two opposite plate surfaces of the square supporting structure 1, and further fix the first bolt 22, so that it does not move randomly.
Referring to fig. 5, a suspension system according to an embodiment of the present invention includes the track adjusting device 100 as described above, and a suspension link mechanism 4 having one end connected to the track adjusting device 100.
Referring to fig. 5, 6 and 7, in some embodiments, the suspension linkage 4 may include a suspension hinge shaft 41 passing through the first bolt 22, the suspension hinge shaft 41 may be provided with a central through hole passing through the first shaft, the central through hole is in sliding clearance fit with the first shaft, the suspension hinge shaft 41 is located in the through groove 214, and the suspension hinge shaft 41 may move along with the first bolt 22; the suspension link mechanism 4 may further include a suspension link 42, one end of the suspension link 42 is welded to the suspension hinge shaft 41, and extends obliquely outward from the suspension hinge shaft 41 through the slot 13, and the other end of the suspension link 42 is assembled with the wheel 5, and the worm mechanism 3 is rotated to transmit the rotation to the cam mechanism 2, so that the cam mechanism 2 rotates around the rotation center hole 212, and further drives the first bolt 22 to slide in the sliding slot 11, and the first bolt 22 drives the suspension hinge shaft 41 and the suspension link 42 to move left and right together, thereby achieving stepless adjustment of the wheel track.
Referring to fig. 8 and 9, in some alternative embodiments, two of the track adjusting devices 100 may be respectively installed on two opposite sides of a chassis bracket longitudinal beam 6 of the vehicle, the chassis bracket longitudinal beam 6 is located between two wheels 5, one suspension link mechanism 4 is provided between each wheel 5 and the chassis bracket longitudinal beam 6, the suspension link mechanism 4 may connect the wheel 5 and the track adjusting device 100, when the first bolt 22 together with the suspension hinge shaft 41 moves to a position close to the center of the chassis bracket longitudinal beam 6, the track between the two wheels 5 decreases, and finally reaches a right limit position C, i.e., a minimum limit position L of the trackShort lengthWhen the first bolt 22 together with the suspension articulation shaft 41 is moved away from the center position of the chassis carrier longitudinal beam 6, the track width between the two wheels 5 increases and finally reaches the left limit position a, i.e. the maximum limit position L of the track widthLong and long
The wheel track adjusting device of the suspension system and the principle of the suspension system provided by the embodiment of the invention are as follows:
because one end of the suspension link mechanism 4 is connected with the cam mechanism 2, the cam mechanism 2 is in transmission fit with the worm mechanism 3, when the worm mechanism 3 is rotated, the cam body 21 can rotate around the rotating central hole 212 at the lower part of the cam body, so that the first bolt 22 at the upper part of the cam body 21 drives the suspension link mechanism 4 to slide in the chute 11 at a larger distance, and because the other end of the suspension link mechanism 4 is connected with the wheel 5, when the suspension link mechanism 4 moves towards the direction close to the wheel 5, the wheel track of the wheel 5 can be increased, when the suspension link mechanism 4 moves towards the direction far away from the wheel 5, the wheel track of the wheel 5 can be reduced, the adjustment of the larger wheel track of the suspension system can be realized, and the stepless adjustment of the large wheel track of more than 20mm can be satisfied, the method is used for meeting the universality requirement of vehicle type development of different levels, and further reducing the development cost and the development time.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A track adjusting apparatus for a suspension system, comprising:
the upper part of the square supporting structure (1) is provided with a sliding chute (11), and the lower part of the square supporting structure is provided with an opening (12);
the cam mechanism (2) is mounted on the square supporting structure (1), the cam mechanism (2) comprises a cam body (21), a through hole (211) which is hinged with the sliding groove (11) through a first bolt (22) is formed in the upper portion of the cam body (21), the first bolt (22) is used for being connected with the suspension connecting rod mechanism (4), the first bolt (22) can slide in the sliding groove (11), and a rotating center hole (212) which is coaxially hinged with the opening hole (12) is formed in the lower portion of the cam body (21);
the upper half part of the cam body (21) is a cam, the through hole (211) is formed in the top of the cam, the lower half part of the cam body (21) is a turbine, and the rotating central hole (212) is formed in the joint of the cam and the turbine;
worm mechanism (3), wear to locate on square bearing structure (1), and be located the below of cam mechanism (2), worm mechanism (3) with cam mechanism (2) transmission is connected, when rotatory worm mechanism (3) are time-consuming, cam mechanism (2) can wind rotatory centre bore (212) rotate, just rotatory centre bore (212) with distance between worm mechanism (3) is less than rotatory centre bore (212) with distance between through-hole (211).
2. The track adjusting apparatus for a suspension system according to claim 1, wherein:
the worm mechanism (3) comprises a screw rod (31), two ends of the screw rod are in threaded connection with a third nut (32) fixed on the square supporting structure (1), and a worm body (33) integrally arranged on the screw rod (31), and the worm body (33) is in transmission connection with the cam mechanism (2).
3. The track adjusting apparatus for a suspension system according to claim 1, wherein:
the first bolt (22) is in sliding clearance fit with the sliding groove (11), and a first nut (23) matched with the first bolt is arranged at one end of the first bolt (22).
4. A track adjusting device for a suspension system according to claim 3, wherein:
the sliding groove (11) is arc-shaped, and the radian between two ends of the sliding groove (11) is at least 60 degrees.
5. The track adjusting apparatus for a suspension system according to claim 1, wherein:
the rotary central hole (212) is connected with the open hole (12) through a second bolt (24), the second bolt (24) is in sliding clearance fit with the open hole (12), and one end of the second bolt (24) is fixed through a second nut (25).
6. A suspension system, comprising:
the upper part of the square supporting structure (1) is provided with a sliding chute (11), and the lower part of the square supporting structure is provided with an opening (12);
the cam mechanism (2) is mounted on the square supporting structure (1), the cam mechanism (2) comprises a cam body (21), a through hole (211) which is hinged with the sliding groove (11) through a first bolt (22) is formed in the upper portion of the cam body (21), the first bolt (22) can slide in the sliding groove (11), and a rotary central hole (212) which is coaxially hinged with the opening hole (12) is formed in the lower portion of the cam body (21);
the upper half part of the cam body (21) is a cam, the through hole (211) is formed in the top of the cam, the lower half part of the cam body (21) is a turbine, and the rotating central hole (212) is formed in the joint of the cam and the turbine;
the worm mechanism (3) penetrates through the square supporting structure (1) and is located below the cam mechanism (2), the worm mechanism (3) is in transmission connection with the cam mechanism (2), when the worm mechanism (3) is rotated, the cam mechanism (2) can rotate around the rotating central hole (212), and the distance between the rotating central hole (212) and the worm mechanism (3) is smaller than the distance between the rotating central hole (212) and the through hole (211);
and one end of the suspension link mechanism (4) is assembled and connected with the wheel (5), and the other end of the suspension link mechanism is connected with the first bolt (22).
7. The suspension system of claim 6 wherein:
the suspension link mechanism (4) comprises a suspension hinge shaft (41) penetrating through the first bolt (22), the suspension hinge shaft (41) can move along with the first bolt (22), and a suspension link (42) with one end welded on the suspension hinge shaft (41), and the other end of the suspension link (42) is connected with the wheel (5).
8. The suspension system of claim 6 wherein:
the worm mechanism (3) comprises a screw rod (31), two ends of the screw rod are in threaded connection with a third nut (32) fixed on the square supporting structure (1), and a worm body (33) integrally arranged on the screw rod (31), and the worm body (33) is in transmission connection with the cam mechanism (2).
9. The suspension system of claim 6 wherein:
the sliding groove (11) is arc-shaped, and the radian between two ends of the sliding groove (11) is at least 60 degrees.
CN202010408104.1A 2020-05-14 2020-05-14 Wheel track adjusting device of suspension system and suspension system Active CN111634167B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005056308A1 (en) * 2003-12-11 2005-06-23 Singapore Technologies Kinetics Ltd Wheel track adjustment system
JP3919657B2 (en) * 2002-12-10 2007-05-30 日野自動車株式会社 Actuator
CN103089947A (en) * 2011-11-03 2013-05-08 唐小兵 Stroke enlarging mechanism
CN103231625A (en) * 2013-04-08 2013-08-07 浙江吉利汽车研究院有限公司杭州分公司 Telescopic device and vehicle provided with same
CN203604566U (en) * 2013-11-19 2014-05-21 重庆风过旗扬科技发展有限公司 Cam stroke amplifying device
CN203818926U (en) * 2014-02-24 2014-09-10 浙江吉利控股集团有限公司 Rear track adjusting device for electric cars
CN109624635A (en) * 2018-12-18 2019-04-16 中国人民解放军国防科技大学 Track adjusting device for vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3919657B2 (en) * 2002-12-10 2007-05-30 日野自動車株式会社 Actuator
WO2005056308A1 (en) * 2003-12-11 2005-06-23 Singapore Technologies Kinetics Ltd Wheel track adjustment system
CN103089947A (en) * 2011-11-03 2013-05-08 唐小兵 Stroke enlarging mechanism
CN103231625A (en) * 2013-04-08 2013-08-07 浙江吉利汽车研究院有限公司杭州分公司 Telescopic device and vehicle provided with same
CN203604566U (en) * 2013-11-19 2014-05-21 重庆风过旗扬科技发展有限公司 Cam stroke amplifying device
CN203818926U (en) * 2014-02-24 2014-09-10 浙江吉利控股集团有限公司 Rear track adjusting device for electric cars
CN109624635A (en) * 2018-12-18 2019-04-16 中国人民解放军国防科技大学 Track adjusting device for vehicle

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