CN211390871U - Mecanum wheel independent suspension mechanism - Google Patents

Mecanum wheel independent suspension mechanism Download PDF

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Publication number
CN211390871U
CN211390871U CN201922473187.8U CN201922473187U CN211390871U CN 211390871 U CN211390871 U CN 211390871U CN 201922473187 U CN201922473187 U CN 201922473187U CN 211390871 U CN211390871 U CN 211390871U
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China
Prior art keywords
mecanum wheel
side plates
suspension mechanism
independent suspension
axle bed
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CN201922473187.8U
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Chinese (zh)
Inventor
蔡晶
刘明生
蔡国庆
刘欢
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NANJING NINGQING CNC MACHINE TOOL MANUFACTURE CO Ltd
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NANJING NINGQING CNC MACHINE TOOL MANUFACTURE CO Ltd
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Priority to CN201922473187.8U priority Critical patent/CN211390871U/en
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Abstract

The utility model relates to a mecanum wheel independent suspension mechanism uses in the technical field of wheel assembly, and it includes mecanum wheel, still includes mount pad and axle bed, and axle bed sliding connection is equipped with nitrogen spring on the mount pad in the mount pad, and nitrogen spring's piston rod is worn into in the mount pad and is contradicted with the axle bed, is equipped with on the axle bed to be used for driving mecanum wheel pivoted driving piece. The utility model discloses have the effect that increases mecanum wheel application scope.

Description

Mecanum wheel independent suspension mechanism
Technical Field
The utility model belongs to the technical field of the technique of wheel assembly and specifically relates to a mecanum wheel independent suspension mechanism is related to.
Background
The mecanum wheel is a wheel moving based on an omni-directional movement mode, which is based on a center wheel principle with a plurality of rollers located at the periphery of the hub, the angled peripheral rollers convert a part of the steering force of the hub to a normal force of the hub, and depending on the direction and speed of the respective hub, the forces finally generate a resultant force vector in any required direction, thereby ensuring that the platform can freely move in the direction of the final resultant force vector without changing the direction of the hub.
Chinese patent No. CN207309953U discloses a two-dimensional line drawing robot with mecanum wheels, which comprises a chassis, a mecanum wheel mechanism and a line drawing pen mechanism; the Mecanum wheel mechanism comprises a stepping motor support, a stepping motor flange plate and a Mecanum wheel, a shell of the stepping motor is fixed on the chassis through the stepping motor support, and an output shaft of the stepping motor drives the Mecanum wheel to rotate through the stepping motor flange plate; the line drawing pen mechanism comprises a steering engine support, a steering engine flange plate, a swing rod, a line drawing pen support and a line drawing pen, wherein two ends of the swing rod are fixed with the steering engine flange plate and the line drawing pen support respectively, the line drawing pen is installed on the line drawing pen support, a shell of the steering engine is fixed on a chassis through the steering engine support, and an output shaft of the steering engine drives the swing rod to swing up and down through the steering engine flange plate and one end of the line drawing pen support.
However, the positions of the Mecanum wheels are relatively fixed, and when the road surface fluctuates, the Mecanum wheels cannot be adaptively adjusted, so that the Mecanum wheels cannot be in contact with the ground easily, and the application range of the Mecanum wheels is narrow.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mecanum wheel independently hangs mechanism, has the effect that increases mecanum wheel application scope not enough to prior art exists.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a mecanum wheel independent suspension mechanism, includes mecanum wheel, still includes mount pad and axle bed, axle bed sliding connection is in the mount pad, be equipped with nitrogen spring on the mount pad, nitrogen spring's piston rod is worn into in the mount pad and is contradicted with the axle bed, be equipped with on the axle bed and be used for driving mecanum wheel pivoted driving piece.
Through adopting above-mentioned technical scheme, the axle bed drives mecanum wheel and ground under nitrogen spring piston rod's promotion and keeps conflicting, and when the height fluctuation appeared in the road surface, nitrogen spring's piston rod is corresponding to be shortened or the extension to drive the axle bed and remove, make mecanum wheel keep the effective conflict with ground, both increased the application scope of mecanum wheel to different road conditions, improved the stability of mecanum wheel operation again.
The present invention may be further configured in a preferred embodiment as: the driving part comprises a driving motor, a transmission shaft and a bearing, an inner ring of the bearing is fixed with the transmission shaft, an outer ring of the bearing is fixed with the inner wall of the shaft seat, two ends of the transmission shaft are respectively connected with a Mecanum wheel and a motor shaft of the driving motor, and the driving motor is arranged on the shaft seat.
Through adopting above-mentioned technical scheme, the operator starts driving motor, and driving motor drives the transmission shaft and rotates, and the transmission shaft drives the rotation of mecanum wheel, and driving motor and mecanum wheel adopt the serial-type transmission, do benefit to and reduce power loss.
The present invention may be further configured in a preferred embodiment as: the bearing is equipped with a plurality ofly, wear to be equipped with the gland on the transmission shaft, the gland passes through the screw connection on the axle bed, the gland is contradicted rather than the bearing inner race that is close to.
By adopting the technical scheme, the plurality of bearings are beneficial to increasing the rotating stability of the transmission shaft; the gland is abutted against the outer ring of the bearing, so that the axial movement of the transmission shaft is limited.
The present invention may be further configured in a preferred embodiment as: and two positioning blocks which are parallel to each other are arranged on the inner wall of the mounting seat.
Through adopting above-mentioned technical scheme, when moving to on the axle bed and contradict with the locating piece, the removal of axle bed is restricted, has reduced nitrogen spring overstroke and the possibility of damaging, has played the guard action to nitrogen spring.
The present invention may be further configured in a preferred embodiment as: the mounting seat comprises two first side plates and two second side plates, the second side plates are arranged between the two first side plates in parallel, the first side plates are connected with the second side plates through fastening screws, the nitrogen spring is mounted on the first side plates, sliding blocks are connected to the two side walls of the shaft seat back to back, and sliding grooves matched with the sliding blocks are formed in the inner walls of the second side plates.
Through adopting above-mentioned technical scheme, the mount pad is formed by first curb plate and the concatenation of second curb plate, simple structure, is convenient for install and the assembly to the axle bed.
The present invention may be further configured in a preferred embodiment as: two the first curb plate all is seted up and is supplied second curb plate tip male draw-in groove.
Through adopting above-mentioned technical scheme, the draw-in groove has both played the effect of location, has restricted the relative displacement between first curb plate and the second curb plate again, has improved the stability of mount pad equipment.
The present invention may be further configured in a preferred embodiment as: the sliding block is connected with the shaft seat through a countersunk head screw.
Through adopting above-mentioned technical scheme, the slider passes through countersunk screw and can dismantle with the axle bed and be connected, uses the wearing and tearing back when the slider for a long time, and the operator can in time change it, guarantees the cooperation precision of axle bed and mount pad.
The present invention may be further configured in a preferred embodiment as: the side wall of the shaft seat is provided with two first key grooves which are vertically distributed, key blocks are inserted into the two first key grooves, one side, facing the shaft seat, of the sliding block is provided with second key grooves corresponding to the two first key grooves, and the key blocks are partially inserted into the second key grooves.
Through adopting above-mentioned technical scheme, fix a position the relative position of slider and axle bed through the cooperation of key piece with first keyway, second keyway, shared the shearing force effect that countersunk head screw received on the one hand, on the other hand has also reduced the possibility of slider displacement.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the application range of the Mecanum wheel to different road conditions is enlarged through the suspension structure, and the running stability of the Mecanum wheel is improved;
2. the axial movement of the transmission shaft is limited by the matching of a plurality of bearings and the gland; the limit position of the shaft seat is limited by the positioning block, so that the nitrogen spring is protected; the detachable connection of the splicing type mounting seat and the sliding block provides convenience for an operator to install, maintain and replace parts, and the flexibility is high.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a schematic structural diagram for embodying the driving member in the present embodiment.
Fig. 4 is a schematic structural diagram for embodying the mount of the present embodiment.
Fig. 5 is a schematic structural diagram for embodying the key block of the present embodiment.
In the figure, 1, a Mecanum wheel; 2. a mounting seat; 21. a shaft seat; 22. a nitrogen spring; 3. a drive member; 31. a drive motor; 32. a drive shaft; 33. a bearing; 34. a gland; 341. a screw; 35. positioning blocks; 41. a first side plate; 42. a second side plate; 43. fastening screws; 44. a slider; 441. countersunk head screws; 45. a chute; 46. a card slot; 5. a key block; 51. a first keyway; 52. a second keyway; 6. a chassis.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
For the utility model discloses a mecanum wheel independently hangs mechanism, as shown in fig. 2 and 3, including mecanum wheel 1, mount pad 2 and axle bed 21, axle bed 21 sliding connection reciprocates in mount pad 2 and along 2 direction of height of mount pad, mecanum wheel 1 is located one side of mount pad 2, be equipped with on the axle bed 21 and be used for driving 1 pivoted driving piece 3 of mecanum wheel, be equipped with nitrogen spring 22 on the mount pad 2 perpendicularly, nitrogen spring 22's piston rod pierces into in mount pad 2 downwards, and the one end of penetrating is contradicted with axle bed 21, make axle bed 21 drive mecanum wheel 1 and ground conflict, be equipped with two locating piece 35 that are parallel to each other on the 2 inner walls of mount pad, locating piece 35 is located axle bed 21 top.
As shown in fig. 1 and 3, in an actual use process, the suspension structure is integrally installed on a trolley chassis 6, a driving member 3 drives a mecanum wheel 1 to rotate, so that the trolley chassis 6 moves in all directions, when a road surface is convex, the mecanum wheel 1 is stressed to enable an axle seat 21 to move upwards, a piston rod of a nitrogen spring 22 is extruded by the axle seat 21 to retract, when the road surface is convex too much, the axle seat 21 is abutted against a positioning block 35, further movement of the axle seat 21 is limited, and the possibility that the piston rod of the nitrogen spring 22 is damaged due to over-travel is reduced; when the road surface is concave, the piston rod of the nitrogen spring 22 pushes the shaft seat 21 to move downwards, so that the Mecanum wheel 1 is driven to abut against the ground, the operation is flexible and rapid, the possibility of suspending the Mecanum wheel 1 is reduced, and the application range of the Mecanum wheel 1 to different road conditions is increased.
As shown in fig. 3, the driving member 3 includes a driving motor 31, a transmission shaft 32 and a bearing 33, one end of the transmission shaft 32 is located in the shaft seat 21, the other end of the transmission shaft 32 is coaxially connected to the mecanum wheel 1, the bearing 33 is provided with a plurality of bearings and is installed at one end of the transmission shaft 32 located in the shaft seat 21, inner rings of the bearings 33 are fixed to the transmission shaft 32, outer rings of the bearings 33 are fixed to an inner wall of the shaft seat 21, the driving motor 31 is installed at a side of the shaft seat 21 away from the mecanum wheel 1, a motor shaft of the driving motor 31 is connected to the transmission shaft 32, a pressing cover 34 is connected to a side of the shaft seat 21 facing the mecanum wheel 1 through a screw 341, the transmission shaft 32 penetrates the pressing cover 34 and has an outer diameter smaller than an inner diameter of. The driving motor 31 is started to drive the transmission shaft 32 to rotate, the transmission shaft 32 drives the Mecanum wheel 1 to rotate, and the Mecanum wheel is simple and direct, good in transmission rigidity and small in occupied space.
As shown in fig. 4, the mounting base 2 includes two first side plates 41 and two second side plates 42, the two second side plates 42 are arranged in parallel between the two first side plates 41, and the first side plates 41 are perpendicular to the second side plates 42 to form a rectangular frame, the shaft seat 21 is located in the frame, the two first side plates 41 are both provided with a slot 46 for inserting an end of the second side plate 42, the first side plate 41 is connected to the second side plates 42 through a fastening screw 43, at this time, the nitrogen spring 22 and the positioning block 35 are respectively installed on an outer side wall and an inner side wall of one of the first side plates 41, and the first side plate 41 is located above the other first side plate 41, and in addition, the positioning block 35 and the first side plate 41 are integrally formed.
As shown in fig. 5, the two opposite side walls of the shaft seat 21 are connected with sliders 44 through fastening screws 43, the sliders 44 extend along the height direction of the second side plates 42, and sliding grooves 45 matched with the sliders 44 are formed in the inner side walls of the two second side plates 42, so that the sliders 44 can move. The side wall of the shaft seat 21 is provided with two first key grooves 51, the two first key grooves 51 are perpendicular to each other, the two first key grooves 51 are internally inserted with key blocks 5, the key blocks 5 are selected to be flat keys, the thickness of each key block is larger than the depth of the corresponding first key groove 51, one side, facing the shaft seat 21, of the sliding block 44 is provided with second key grooves 52 corresponding to the two first key grooves 51, when the sliding block 44 is fixed on the shaft seat 21 through the sunk screws 441, the key blocks 5 are partially inserted into the corresponding second key grooves 52, the possibility of displacement of the sliding block 44 is reduced, and the movement of the shaft seat 21 is stabilized; when the sliding block 44 or the sliding groove 45 is seriously abraded after the mechanism is used for a long time, an operator can independently replace the sliding block 44 or the second side plate 42, and the mechanism is convenient and flexible.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A mecanum wheel independent suspension mechanism, includes mecanum wheel (1), its characterized in that: still include mount pad (2) and axle bed (21), axle bed (21) sliding connection is in mount pad (2), be equipped with nitrogen gas spring (22) on mount pad (2), the piston rod of nitrogen gas spring (22) is worn into in mount pad (2) and is contradicted with axle bed (21), be equipped with on axle bed (21) and be used for driving mecanum wheel (1) pivoted driving piece (3).
2. A mecanum wheel independent suspension mechanism as defined in claim 1, wherein: the driving part (3) comprises a driving motor (31), a transmission shaft (32) and a bearing (33), the inner ring of the bearing (33) is fixed with the transmission shaft (32), the outer ring of the bearing is fixed with the inner wall of the shaft seat (21), two ends of the transmission shaft (32) are respectively connected with a motor shaft of the Mecanum wheel (1) and the driving motor (31), and the driving motor (31) is installed on the shaft seat (21).
3. A mecanum wheel independent suspension mechanism as defined in claim 2, wherein: the bearing (33) is provided with a plurality of bearings, a gland (34) penetrates through the transmission shaft (32), the gland (34) is connected to the shaft seat (21) through a screw (341), and the gland (34) is abutted to the outer ring of the bearing (33) close to the gland.
4. A mecanum wheel independent suspension mechanism as defined in claim 1, wherein: and two positioning blocks (35) which are parallel to each other are arranged on the inner wall of the mounting seat (2).
5. A Mecanum wheel independent suspension mechanism as claimed in claim 1 or 4, wherein: the mounting seat (2) comprises two first side plates (41) and two second side plates (42), the two second side plates (42) are arranged between the two first side plates (41) in parallel, the first side plates (41) are connected with the second side plates (42) through fastening screws (43), the nitrogen spring (22) is installed on the first side plates (41), sliding blocks (44) are connected to the two opposite side walls of the shaft seat (21), and sliding grooves (45) matched with the sliding blocks (44) are formed in the inner walls of the second side plates (42).
6. A mecanum wheel independent suspension mechanism as claimed in claim 5, wherein: the two first side plates (41) are provided with clamping grooves (46) for inserting the ends of the second side plates (42).
7. A mecanum wheel independent suspension mechanism as claimed in claim 5, wherein: the sliding block (44) is connected with the shaft seat (21) through a sunk screw (441).
8. A mecanum wheel independent suspension mechanism as defined in claim 7, wherein: the side wall of the shaft seat (21) is provided with two first key grooves (51) which are vertically distributed, key blocks (5) are inserted into the two first key grooves (51), one side, facing the shaft seat (21), of the sliding block (44) is provided with second key grooves (52) corresponding to the two first key grooves (51), and the key blocks (5) are partially inserted into the second key grooves (52).
CN201922473187.8U 2019-12-30 2019-12-30 Mecanum wheel independent suspension mechanism Active CN211390871U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922473187.8U CN211390871U (en) 2019-12-30 2019-12-30 Mecanum wheel independent suspension mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922473187.8U CN211390871U (en) 2019-12-30 2019-12-30 Mecanum wheel independent suspension mechanism

Publications (1)

Publication Number Publication Date
CN211390871U true CN211390871U (en) 2020-09-01

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Application Number Title Priority Date Filing Date
CN201922473187.8U Active CN211390871U (en) 2019-12-30 2019-12-30 Mecanum wheel independent suspension mechanism

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CN (1) CN211390871U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021143138A1 (en) * 2020-01-15 2021-07-22 苏州科瓴精密机械科技有限公司 Wheel drive structure and lawn mower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021143138A1 (en) * 2020-01-15 2021-07-22 苏州科瓴精密机械科技有限公司 Wheel drive structure and lawn mower

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