CN209739209U - universal wheel, chassis assembly and robot - Google Patents
universal wheel, chassis assembly and robot Download PDFInfo
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- CN209739209U CN209739209U CN201920441896.5U CN201920441896U CN209739209U CN 209739209 U CN209739209 U CN 209739209U CN 201920441896 U CN201920441896 U CN 201920441896U CN 209739209 U CN209739209 U CN 209739209U
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Abstract
The utility model discloses an universal wheel, chassis assembly and robot, the universal wheel includes: the upper top plate, the upper support frame and the rotating wheel mounting frame; the upper support frame is arranged on the lower side of the upper top plate and is in pivot fit with the upper top plate; the rotating wheel mounting bracket is arranged on the lower side of the upper support frame and is in pivot fit with the upper support frame, and one end of the rotating wheel mounting bracket is provided with a rotating wheel; the upper support frame is provided with a fixing plate at least partially extending towards the outside, and a universal wheel vibration damping assembly is arranged between the fixing plate and the other end of the rotating wheel mounting bracket. Therefore, on one hand, the occupied space of the universal wheel in the height direction is reduced, so that the arrangement and installation of the universal wheel are simpler and more convenient; on the other hand, the universal wheel with the vibration reduction effect can reduce the vibration of the chassis assembly in the advancing process, prolong the service life of the chassis assembly and improve the threshold passing capacity of the chassis assembly.
Description
Technical Field
The utility model belongs to the technical field of the robotechnology and specifically relates to an universal wheel, chassis assembly and robot are related to.
Background
In the related art, a robot generally performs steering during traveling by using universal wheels provided on a chassis of the robot. However, most of the universal wheels in the prior art do not have a vibration damping function, which may reduce the service life of the robot, and even if the universal wheels have a vibration damping function, a vibration damping member is directly disposed between the rotating wheel and the rotating wheel support, which may cause a large space occupation of the universal wheels in the height direction and make the universal wheels difficult to arrange.
Disclosure of Invention
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an universal wheel, universal wheel's space occupies littleer, turns to more in a flexible way.
the utility model also provides a chassis assembly of having above-mentioned universal wheel.
the utility model discloses a robot with above-mentioned chassis assembly is further provided.
According to the utility model discloses universal wheel of first aspect embodiment, include: the upper top plate, the upper support frame and the rotating wheel mounting frame; the upper support frame is arranged on the lower side of the upper top plate and is in pivot fit with the upper top plate; the rotating wheel mounting bracket is arranged on the lower side of the upper support frame and is in pivot fit with the upper support frame, and one end of the rotating wheel mounting bracket is provided with a rotating wheel; wherein the upper support frame is provided with a fixing plate at least partially extending towards the outside, and a universal wheel vibration damping assembly is arranged between the fixing plate and the other end of the rotating wheel mounting bracket.
According to the universal wheel provided by the embodiment of the utility model, on one hand, the universal wheel damping assembly and the rotating wheel are respectively positioned at the two ends of the rotating wheel mounting bracket, so that the height of the universal wheel can be effectively reduced, and the space occupation of the universal wheel in the height direction is reduced, thereby the arrangement and the installation of the universal wheel are simpler and more convenient; on the other hand, the universal wheel with the vibration reduction effect can reduce the vibration of the chassis assembly in the advancing process, prolong the service life of the chassis assembly and improve the threshold passing capacity of the chassis assembly.
According to some embodiments of the invention, the upper support frame comprises: the upper support frame body is in pivot fit with the rotating wheel mounting bracket; the rotating shaft is arranged on the upper support frame body and extends upwards, and the rotating shaft is in pivot fit with the upper top plate.
In some embodiments, a bearing is disposed on the upper top plate, and the rotating shaft includes: from up spacing section, cooperation section and the canned paragraph of arranging in proper order down, the last side of spacing section with the downside of bearing ends to, the cooperation section with the inner circle of bearing is fixed, be provided with the locating part on the canned paragraph, the locating part with the last side of bearing ends to.
Further, the limiting part is a nut, and the nut is in threaded fit with the fixing section.
In some embodiments, the fixing plate includes: the first plate portion is arranged on the upper support frame and extends downwards, the second plate portion is arranged at the free end of the first plate portion and extends outwards, and the second plate portion is opposite to the other end of the rotating wheel mounting frame; the one end of rotating wheel installing support is provided with the guide bar that extends towards the top, the guide bar passes the second board just the free end of guide bar with be provided with universal wheel damping subassembly between the second board.
According to some embodiments of the utility model, the universal wheel damping subassembly includes: the compression spring is sleeved on the guide rod, the lower end of the compression spring is connected with the fixed plate, and the upper end of the compression spring is connected with the free end of the guide rod.
In some embodiments, the universal wheel damping assembly further comprises: installation department under the pressure spring on installation department and the pressure spring, under the pressure spring the installation department with the lower extreme of pressure spring links to each other and the cover is established on the guide bar, on the pressure spring the installation department with the upper end of pressure spring links to each other and the cover is established on the guide bar, the free end of guide bar be provided with the stop nut that the installation department stopped to on the pressure spring.
Further, an elastic pad is arranged between the other end of the rotating wheel mounting bracket and the second plate portion.
According to some embodiments of the invention, the rotating wheel is a ball wheel.
according to the utility model discloses chassis assembly of second aspect embodiment, including the universal wheel in the above-mentioned embodiment.
According to the utility model discloses robot of third aspect embodiment, including the chassis assembly described in the above-mentioned embodiment.
additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Fig. 1 is a schematic view of a chassis assembly according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a chassis assembly according to an embodiment of the present invention;
Fig. 3 is a schematic view of a drive assembly according to an embodiment of the present invention;
Fig. 4 is another schematic view of a drive assembly according to an embodiment of the present invention;
Fig. 5 is a schematic view of a universal wheel according to an embodiment of the present invention;
fig. 6 is another schematic view of a universal wheel according to an embodiment of the present invention.
Reference numerals:
A chassis assembly (1000) is provided,
The universal wheel (100) is provided with a universal wheel,
The combination of the upper top plate 110, the bearings 111,
An upper support frame 120, a fixing plate 121, a first plate 1211, a second plate 1212, an upper support frame body 122, a rotating shaft 123, a limiting section 1231, a matching section 1232, a fixing section 1233,
A rotating wheel mounting bracket 130, a guide rod 131, a rotating wheel 140, a universal wheel damping assembly 150, a pressure spring lower mounting part 151, a pressure spring upper mounting part 152, a pressure spring 153, a limiting part 160, an elastic pad 170, a limiting nut 180,
The drive assembly (200) is driven by the motor,
driving wheel 210, mounting plate 220, upper mounting plate 221, bottom plate 2211, middle plate 2212, lower plate 2213, lower mounting plate 222, guide sleeve 223, first mounting seat 224, first mounting point a, second mounting point b,
A suspension mounting bracket 230, an upper side plate 231, a second mounting seat 2311, a front lower side plate 232, a rear lower side plate 233, a front connecting plate 234, a rear connecting plate 235, a suspension damping assembly 240, a guide post 241, an elastic member 242, a cushion 250,
The chassis body 300 is formed with a plurality of grooves,
A chassis body upper plate 310, a chassis body lower plate 320, a front raised portion 321, a rear raised portion 322, and a battery pack 330.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A universal wheel 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6.
As shown in fig. 5 and 6, the universal wheel 100 according to the embodiment of the present invention includes: an upper top plate 110 (the upper top plate 110 is adapted to be mounted on the chassis assembly 1000), an upper support bracket 120, and a swivel wheel mounting bracket 130; the upper support frame 120 is arranged on the lower side of the upper top plate 110 and is in pivot fit with the upper top plate 110; the rotating wheel mounting bracket 130 is arranged at the lower side of the upper support frame 120 and is in pivot fit with the upper support frame 120, and one end of the rotating wheel mounting bracket 130 is provided with a rotating wheel 140; wherein, the upper supporting frame 120 is provided with a fixing plate 121 at least partially extending towards the outside, and a universal wheel damping assembly 150 is arranged between the fixing plate 121 and the other end of the rotating wheel mounting bracket 130.
Specifically, the rotating wheel 140 is provided at one end of the rotating wheel mounting bracket 130, and the other end of the rotating wheel mounting bracket 130 is connected to the universal wheel damping assembly 150, and the middle region of the rotating wheel mounting bracket 130 is pivotally coupled to the upper support frame 120, so that when the rotating wheel 140 is adapted to a road condition and a jump occurs, the universal wheel damping assembly 150 fixed to the other end of the rotating wheel mounting bracket 130 can provide an acting force in a direction opposite to the jumping direction of the rotating wheel 140 at the other end of the rotating wheel mounting bracket 130, thereby effectively reducing the vibration of the universal wheel 100.
According to the universal wheel 100 of the embodiment of the present invention, on one hand, the universal wheel damping assembly 150 and the rotating wheel 140 are respectively located at the two ends of the rotating wheel mounting bracket 130, so that the height of the universal wheel 100 can be effectively reduced, and the space occupation of the universal wheel 100 in the height direction is reduced, thereby making the arrangement and installation of the universal wheel 100 simpler and more convenient; on the other hand, the universal wheel 100 with vibration damping effect can reduce the vibration of the chassis assembly 1000 during the moving process, improve the service life of the chassis assembly 1000, and improve the threshold-crossing capability of the chassis assembly 1000.
It will be appreciated that the caster wheel 1000 of the present embodiment is mounted to the chassis assembly 1000 and adapted to follow to assist in steering the chassis assembly 1000.
It should be noted that, the chassis assembly 1000 realizes traveling through the universal wheels 100 and the driving wheels 210 thereof, and during the traveling, road conditions such as a ditch sill and the like are inevitably encountered, so that the universal wheels 100 have a vibration damping function, the traveling form of the chassis assembly 1000 can be improved, and the capability of passing through the ditch sill (i.e., the sill passing capability) is improved.
As shown in fig. 6, the upper support frame 120 includes: the upper support frame body 122 is in pivot fit with the rotating wheel mounting bracket 130; the rotating shaft 123 is disposed on the upper supporting frame body 122 and extends upward, and the rotating shaft 123 is pivotally engaged with the upper top plate 110.
specifically, a rotating shaft 123 is formed on the upper side surface of the upper support frame body 122, one end of the rotating shaft 123 is connected with the upper support frame body 122, and the other end of the rotating shaft 123 extends upward and at least partially protrudes out of the upper top plate 110, so that the rotating shaft 123 is in pivot fit with the upper top plate 110. In this way, not only can universal adjustment (i.e., 360 ° adjustment) of the universal wheel 100 be achieved, but also the fixing of the rotating shaft 123 and the upper top plate 110 can be more firm and reliable.
It is understood that the upper top plate 110 is provided with the bearing 111, and the rotation shaft 123 includes: from spacing section 1231, cooperation section 1232 and the fixed part 1233 that upwards arranges in proper order down, the last side of spacing section 1231 ends with the downside of bearing 111, and cooperation section 1232 is fixed with the inner circle of bearing 111, is provided with locating part 160 on the fixed part 1233, and locating part 160 ends with the last side of bearing 111.
that is to say, the outer ring of the bearing 111 is compressed tightly below the lower side surface of the bearing 111 and above the upper side surface of the fixed section 1233, the bearing 111 is arranged in the upper top plate 110, so that the connection between the upper top plate 110 and the rotating shaft 123 is realized, the matching section 1232 is fixed with the inner ring of the bearing 111, so that the rotating shaft 123 and the inner ring of the bearing 111 can synchronously rotate, the universal adjustment of the rotating wheel 140 relative to the upper top plate 110 is realized, and the direction adjustment of the universal wheel 100 is simpler and more convenient.
In the particular embodiment shown in fig. 5 and 6, the retaining member 160 is a nut that is threadably engaged with the fixed segment 1233. Like this, make upper bracket 120 and last roof 110 detachably connected, not only made things convenient for dismantlement and maintenance after universal wheel 100 damages, moreover, can be through the degree of screwing up of adjustment locating part 160 to the sensitivity of adjustment universal wheel 100 angular adjustment is adjusted, so that universal wheel 100 satisfies the user demand.
As shown in fig. 5 and 6, the fixing plate 121 includes: a first plate portion 1211 and a second plate portion 1212, the first plate portion 1211 being provided on the upper support frame 120 and extending downward; a second plate portion 1212 provided at a free end of the first plate portion 1211 and extending outward, the second plate portion 1212 facing the other end of the rotating wheel mounting bracket 130; one end of the turning wheel mounting bracket 130 is provided with a guide rod 131 extending upward, the guide rod 131 passes through the second plate portion 1212, and a universal wheel damping unit 150 is provided between the free end of the guide rod 131 and the second plate portion 1212.
In this way, the universal wheel vibration damping assembly 150 is disposed between the second plate portion 1212 and the rotating wheel mounting bracket 130, so that vibration can be effectively damped by the universal wheel vibration damping assembly 150, reducing vibration of the universal wheel 100, and improving vibration absorption performance of the universal wheel 100.
As shown in fig. 5 and 6, the universal wheel damping assembly 150 includes: and the compression spring 153 is sleeved on the guide rod 131, the lower end of the compression spring 153 is connected with the fixing plate 121, and the upper end of the compression spring 153 is connected with the free end of the guide rod 131.
Specifically, while the guide rod 131 is fixedly coupled to the other end of the rotating wheel mounting bracket 130, the guide rod 131 is slidably engaged with the fixing plate 121, so that the rotating wheel mounting bracket 130 fixedly coupled to the guide rod 131 is adapted to pull or push the guide rod 131 to compress the compression spring 153, thereby achieving vibration damping.
Further, the universal wheel damping assembly 150 further includes: the lower pressure spring mounting portion 151 and the upper pressure spring mounting portion 152 are arranged, the lower pressure spring mounting portion 151 is connected with the lower end of a pressure spring 153 and sleeved on the guide rod 131, the upper pressure spring mounting portion 152 is connected with the upper end of the pressure spring 153 and sleeved on the guide rod 131, and a limiting nut 180 which abuts against the upper pressure spring mounting portion 152 is arranged at the free end of the guide rod 131.
Thus, the compression spring 153 fixed between the compression spring upper mounting portion 152 and the compression spring lower mounting portion 151 is pressed by the compression spring lower mounting portion 151 when the guide rod 131 moves, and vibration is reduced by the elastic force of the compression spring 153. The whole universal wheel vibration reduction assembly 150 is more reasonable in structure and higher in working stability, is arranged at one end of the universal wheel 100, is reasonable in arrangement position, and is simple and convenient to arrange.
In addition, the degree of tightening of the limit nut 180 can be adjusted to adjust the compressed amount of the compression spring 153 in the initial state, so that the stiffness of the universal wheel damping assembly 150 can be effectively adjusted to meet the stiffness requirement of damping of the universal wheel 100.
In the particular embodiment shown in fig. 6, a resilient pad 170 is disposed between the other end of the rotating wheel mounting bracket 130 and the second plate portion 1212. From this, through setting up the cushion 170, and be formed with between the cushion 170 and be suitable for guide bar 131 to pass in order to rotate the fixed hole of wheel installing support 130, not only can improve the installation accuracy of guide bar 131, make things convenient for the installation of guide bar 131 on rotating wheel installing support 130, and can carry out the backstop through cushion 170 between rotating wheel installing support 130 and fixed plate 121, avoid fixed plate 121 and rotating wheel installing support 130 direct contact, the job stabilization nature of universal wheel 100 has been improved, and the abnormal sound has been avoided appearing in the universal wheel 100 course of operation.
Referring to fig. 5 and 6, the rotary wheel 140 is a ball wheel. It can be understood that the contact area of the ball wheel with the ground is smaller, so that the steering and the resistance during the traveling of the universal wheel 100 are smaller, and the steering and the rotation of the universal wheel 100 are simpler and more convenient.
The chassis assembly 1000 according to the present invention includes the universal wheel 100 in the above embodiments.
according to the utility model discloses chassis assembly 1000 adopts above-mentioned universal wheel 100, can improve chassis assembly 1000's bank ability of crossing effectively, prolongs chassis assembly 1000's life to make chassis assembly 1000 turn to and advance sensitively more, fast.
According to the utility model discloses the robot, including chassis assembly 100 in the above-mentioned embodiment.
According to the utility model discloses robot, it is unanimous with the technical advantage that above-mentioned chassis assembly 1000 has, is not repeated here.
It will be appreciated that the universal wheels 100 are driven wheels, and that during travel of the robot, power needs to be provided for the travel of the robot by the drive assembly 200.
The drive assembly 200 is described in detail below with reference to fig. 3-4.
As shown in fig. 3 and 4, the driving assembly 200 includes: a suspension mechanism (which is adapted to be mounted on the chassis assembly 1000), the suspension mechanism comprising: the suspension mounting bracket 230 and the mounting plate 220, wherein the driving wheel 210 is arranged on the mounting plate 220; wherein the mounting plate 220 has a first mounting point a connected to the driving wheel 210, and the mounting plate 220 has a second mounting point b connected to the suspension mounting bracket 230, the second mounting point b being located higher than the first mounting point a.
According to the drive assembly 200 of the embodiment of the present invention, the position of the second mounting point b is made higher than the position of the first mounting point a, and the first mounting point a is located on the axis of the drive wheel 210. In this way, a substantial portion of the suspension mounting bracket 230 is positioned above a plane parallel to the horizontal plane in which the axis of the drive wheel 210 is located, thereby allowing greater ground clearance for the suspension mounting bracket 230 and better passage of the drive assembly 200.
It is understood that the driving assembly 200 of the present embodiment is mounted on the chassis assembly 1000, and is adapted to drive the chassis assembly 1000 to travel.
According to some embodiments of the present invention, the suspension mechanism is symmetrical about a vertical plane passing through the axis of the drive wheel 210, as shown in fig. 3 and 4.
Specifically, the driving wheel 210 is connected to the chassis assembly 1000 through a suspension mechanism, and the suspension mechanism is configured in an axisymmetric structure, so that the suspension mechanism is disposed symmetrically to a vertical plane passing through the axis of the driving wheel 210.
According to the utility model discloses drive assembly 200, through making suspension mechanism about the vertical plane symmetry of the axis through drive wheel 210, the load that both ends bore around making drive wheel 210 is the same to both ends atress is the same around making drive wheel 210, chassis assembly 1000 that can avoid effectively appears leaning forward or hypsokinesis, so that drive assembly 200 has better the bank performance of crossing, higher stability of marcing.
In the particular embodiment shown in FIG. 3, the mounting plate 220 includes: an upper mounting plate 221 and a lower mounting plate 222, the upper mounting plate 221 being provided with two second mounting points b symmetrical with respect to a vertical plane passing through an axis of the driving wheel 210, the lower mounting plate 222 being detachably provided on the upper mounting plate 221 and the lower mounting plate 222 defining a first mounting point a.
Specifically, both ends of the upper mounting plate 221 extend away from each other and are formed with second mounting points b, respectively, and are connected to the suspension mounting bracket 230 through the second mounting points b, and a middle region of the lower mounting plate 222 is disposed opposite to a middle region of the upper mounting plate 221 with a first mounting point a defined therebetween.
Thus, on one hand, by providing two second mounting points b, the fixing effect of the suspension mechanism symmetrically arranged with respect to the axis of the driving wheel 210 and the load distribution on both sides of the driving wheel 210 are both better; on the other hand, the lower mounting plate 222 and the upper mounting plate 221 are detachably connected, so that the replacement and maintenance of the driving wheel 210 are simpler and more convenient.
Further, the upper mounting plate 221 includes: a bottom plate 2211, a middle plate 2212 and an upper plate 2213, wherein the bottom plate 2211 and the lower mounting plate 222 define a first mounting point a, and the middle plate 2212 is arranged at two ends of the bottom plate 2211 and extends upwards; one end of the upper plate 2213 is disposed at the free end of the corresponding middle plate 2212, and the other end of the upper plate 2213 is provided with a second mounting point b.
thus, by providing the bottom plate 2211, the middle plate 2212 and the upper plate 2213, the distance between the upper plate 2213 and the bottom plate 2211 is more reasonable. Therefore, the arrangement of the suspension mechanism is convenient, the interference between the suspension mechanism and the driving wheel 210 is avoided, the suspension mechanism can be ensured to have larger ground clearance, and the trafficability of the driving wheel 210 is ensured.
in the particular embodiment shown in fig. 3 and 4, the suspension mechanism comprises: mounting plate 220, suspension mounting bracket 230, and drive wheel 210; the suspension mounting bracket 230 is coupled to the drive wheel 210 via a mounting plate 220.
Specifically, a suspension damper assembly 240 is disposed between the front end of the mounting plate 220 and the front end of the suspension mounting bracket 230, and a suspension damper assembly 240 is disposed between the rear end of the mounting plate 220 and the rear end of the suspension mounting bracket 230. Thus, on one hand, the suspension damping assembly 240 is arranged between the mounting plate 220 and the suspension mounting bracket 230, so that when the driving wheel 210 jumps, the suspension damping assembly 240 can damp vibration, and the damping effect of the driving assembly 200 is better; on the other hand, the suspension damping units 240 are provided at both the front end of the driving wheel 210 and the rear end of the driving wheel 210, so that the damping effect of the front end and the rear end of the driving wheel 210 are the same, and the damping effect of the driving assembly 200 can be further improved.
As shown in fig. 4, the suspension damping assembly 240 includes: a guide post 241, an elastic member 242, the guide post 241 is arranged on the suspension mounting bracket 230, the mounting plate 220 is slidably arranged on the guide post 241; the elastic member 242 is disposed on the guide post 241, one end of the elastic member 242 is connected to the mounting plate 220, and the other end of the elastic member 242 is connected to the suspension mounting bracket 230.
In other words, the elastic member 242 elastically abuts between the suspension mounting bracket 230 and the mounting plate 220, and the mounting plate 220 is slidably engaged with the guide post 241, so that when the driving wheel 210 bounces, the mounting plate 220 can move upwards or downwards on the guide post 241, so as to pull or push the elastic member 242 fixed at one end on the mounting plate 220, and further, the impact transmitted toward the chassis assembly 1000 is absorbed by the elastic force of the elastic member 242, thereby effectively improving the working environment of the chassis assembly 1000, avoiding the vibration of the relevant parts of the chassis assembly 1000, and prolonging the service life of the chassis assembly 1000.
it will be appreciated that the suspension damper assembly 240 is disposed in the height direction of the drive wheel 210, so that the suspension damper assembly 240 is adjustable in the height direction of the drive wheel 210 by a greater amount, and the suspension damper assembly 240 is suitable for use with chassis assemblies 1000 of different specifications and sizes, and is not limited to use with chassis assemblies 1000 of small sizes.
Further, a guide sleeve 223 is disposed on the mounting plate 220 and sleeved on the guide post 241. Specifically, a guide sleeve 223 is fixed on the mounting plate 220, and the guide sleeve 223 is in sliding fit with the guide pillar 241, so that the stability of the mounting plate 220 in sliding fit with the guide pillar 241 can be improved, and the working stability and the vibration damping effect of the suspension damping assembly 240 can be improved.
As shown in fig. 3 and 4, the mounting plate 220 is provided with a first mounting seat 224 for fixing one end of the elastic member 242, and the suspension mounting bracket 230 is provided with a second mounting seat 2311 for fixing the other end of the elastic member 242. In this way, the first and second mounting seats 224 and 2311 are provided to more firmly and reliably fix the elastic member 242 to the mounting plate 220 and the suspension mounting bracket 230.
in the particular embodiment shown in fig. 3 and 4, the suspension mounting bracket 230 includes: the upper side plate 231, the front lower side plate 232, the rear lower side plate 233 and the front end and the rear end of the upper side plate 231 are respectively provided with a front connecting plate 234 and a rear connecting plate 235 which extend downwards; the front lower side plate 232 and the rear lower side plate 233 are respectively provided on the front connecting plate 234 and the rear connecting plate 235; suspension damping assemblies 240 are disposed between the front end of the upper plate 231 and the front lower plate 232, and between the rear end of the upper plate 231 and the rear lower plate 233.
that is to say, the upper side plate 231, the front connecting plate 234, the rear connecting plate 235, the front lower side plate 232 and the rear lower side plate 233 together constitute the suspension mounting bracket 230 of the frame-shaped structure, and the mounting plate 220 and the suspension damping component 240 are both arranged in the space defined by the suspension mounting bracket 230 of the frame-shaped structure, so that on the premise of improving the damping effect of the driving assembly 200, the structure of the driving assembly 200 is more reasonable, and the overall structural strength is higher.
It will be appreciated that the upper sides of the front lower side panel 232 and the rear lower side panel 233 are each provided with a cushion 250. In this way, during vibration damping of the drive assembly 200, direct contact between the mounting plate 220 and the front lower side plate 232 or between the mounting plate 220 and the rear lower side plate 233 can be avoided, so as to reduce noise and abnormal noise during operation of the drive assembly 200.
the chassis assembly 1000 according to the embodiment of the present invention includes the driving assembly 200 in the above embodiment.
according to the utility model discloses chassis assembly 1000 adopts above-mentioned drive assembly 200 and universal wheel 100, can improve chassis assembly 1000's stationarity of going effectively, and the bending performance, avoid the part vibration in chassis assembly 1000, extension chassis assembly 1000's life.
It is to be understood that the structural improvement of the chassis assembly 1000 according to the embodiment of the present invention is not limited thereto.
The chassis assembly 1000 according to an embodiment of the present invention is described in detail below with reference to fig. 1 and 2.
as shown in fig. 1 and 2, a chassis assembly 1000 according to an embodiment of the present invention includes: the chassis comprises a chassis body 300, a left driving assembly, a right driving assembly, a front universal wheel and a rear universal wheel; the left driving assembly and the right driving assembly are respectively arranged at the left side and the right side of the chassis body 300; the front universal wheel and the rear universal wheel are respectively arranged on the front side and the rear side of the chassis body 300, and the front universal wheel and the rear universal wheel are respectively provided with a universal wheel damping assembly 150.
According to the utility model discloses chassis assembly 1000 sets up left drive assembly, right drive assembly, preceding universal wheel and back universal wheel on chassis body 300 to all be provided with universal wheel damping subassembly 150 on making preceding universal wheel and the back universal wheel, thereby make the auxiliary universal wheel 100 that turns to also have the damping ability, not only make chassis body 300 place more stably, reliably subaerial, it is more steady to advance, power is sufficient, turn to swiftly, and can further improve chassis assembly 1000's the stability of advancing.
As shown in fig. 2, the front caster includes: a left front universal wheel provided at the left front side of the chassis body 300 and a right front universal wheel provided at the right front side of the chassis body 300; the rear universal wheel includes: a left rear universal wheel provided at the left rear side of the chassis body 300 and a right rear universal wheel provided at the right rear side of the chassis body 300. That is, the chassis assembly 1000 of the present embodiment adopts the driving form of the two driving wheels 210 and the four universal wheels 100, so that the steering is more stable and reliable while the dynamic performance is ensured, and the posture of the chassis assembly 1000 is stable during the turning.
As shown in fig. 5 and 6, the left front universal wheel, the right front universal wheel, the left rear universal wheel, and the right rear universal wheel are identical in structure and include: an upper top plate 110 (the upper top plate 110 is adapted to be mounted on the chassis assembly 1000), an upper support bracket 120, and a swivel wheel mounting bracket 130; the upper support frame 120 is arranged on the lower side of the upper top plate 110 and is in pivot fit with the upper top plate 110; the rotating wheel mounting bracket 130 is arranged at the lower side of the upper support frame 120 and is in pivot fit with the upper support frame 120, and one end of the rotating wheel mounting bracket 130 is provided with a rotating wheel 140; wherein, the upper supporting frame 120 is provided with a fixing plate 121 at least partially extending towards the outside, and a universal wheel damping assembly 150 is arranged between the fixing plate 121 and the other end of the rotating wheel mounting bracket 130.
As shown in fig. 2, the chassis body 300 includes: a chassis body upper plate 310, a chassis body lower plate 320, a battery pack 330; the chassis body lower plate 320 is fixedly connected with the chassis body upper plate 310, and a battery accommodating space is defined between the chassis body lower plate 320 and the chassis body upper plate 310; the battery pack 330 is disposed in the battery receiving space and fixed with the chassis body upper plate 310 or/and the chassis body lower plate 320.
Therefore, a battery accommodating space is defined by the chassis body upper plate 310 and the chassis body lower plate 320, and the battery pack 330 is arranged in the battery accommodating space, so that the structural strength of the chassis body 300 can be improved, and the fixing effect of the battery pack 330 in the chassis body 300 can also be improved.
In some embodiments, the front and rear sides of the chassis body lower plate 320 are provided with a front swelling portion 321 and a rear swelling portion 322, which swell upward, respectively, and the front and rear universal wheels are fixed to the front swelling portion 321 and the rear swelling portion 322, respectively. Therefore, the front universal wheel and the rear universal wheel are more simply and conveniently arranged on the lower plate 320 of the chassis body.
Optionally, the suspension mounting bracket 230 comprises: an upper side plate 231, a front lower side plate 232, and a rear lower side plate 233; the front end and the rear end of the upper side plate 231 are respectively provided with a front connecting plate 234 and a rear connecting plate 235 which extend downwards; the front lower side plate 232 and the rear lower side plate 233 are respectively provided on the front connecting plate 234 and the rear connecting plate 235; suspension damping assemblies 240 are arranged between the front end of the upper side plate 231 and the front lower side plate 232 and between the rear end of the upper side plate 231 and the rear lower side plate 233, the upper side plate 231 is fixed on the chassis body upper plate 310, and the front lower side plate 232 and the rear lower side plate 233 are fixed on the chassis body lower plate 320.
That is, the suspension damping unit 240 is fixedly connected to the chassis body upper plate 310 via the upper plate 231, and is fixedly connected to the chassis body lower plate 320 via the front lower plate 232 and the rear lower plate 233, so that the suspension damping unit 240 is more stably and reliably fixed to the chassis body 300.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A universal wheel, comprising:
An upper top plate;
the upper support frame is arranged on the lower side of the upper top plate and is in pivot fit with the upper top plate;
the rotating wheel mounting bracket is arranged on the lower side of the upper support frame and is in pivot fit with the upper support frame, and one end of the rotating wheel mounting bracket is provided with a rotating wheel; wherein
The upper support frame is provided with a fixing plate at least partially extending towards the outside, and a universal wheel vibration reduction assembly is arranged between the fixing plate and the other end of the rotating wheel mounting bracket.
2. the universal wheel of claim 1, wherein said upper support bracket comprises:
The upper support frame body is in pivot fit with the rotating wheel mounting bracket;
The rotating shaft is arranged on the upper support frame body and extends upwards, and the rotating shaft is in pivot fit with the upper top plate.
3. The universal wheel as claimed in claim 2, wherein a bearing is provided on the upper top plate, and the rotation shaft comprises: from up spacing section, cooperation section and the canned paragraph of arranging in proper order down, the last side of spacing section with the downside of bearing ends to, the cooperation section with the inner circle of bearing is fixed, be provided with the locating part on the canned paragraph, the locating part with the last side of bearing ends to.
4. The universal wheel according to claim 3, wherein the stopper is a nut, and the nut is threadedly engaged with the fixed segment.
5. The universal wheel of claim 1, wherein the fixed plate comprises:
A first plate portion provided on the upper support frame and extending downward;
A second plate portion provided at a free end of the first plate portion and extending outward, the second plate portion facing the other end of the rotating wheel mounting bracket;
The one end of rotating wheel installing support is provided with the guide bar that extends towards the top, the guide bar passes the second board just the free end of guide bar with be provided with between the second board universal wheel damping subassembly.
6. The universal wheel of claim 5, wherein the universal wheel damping assembly comprises:
The compression spring is sleeved on the guide rod, the lower end of the compression spring is connected with the fixed plate, and the upper end of the compression spring is connected with the free end of the guide rod.
7. The universal wheel of claim 5, wherein the universal wheel damping assembly further comprises: installation department under the pressure spring on installation department and the pressure spring, under the pressure spring the installation department with the lower extreme of pressure spring links to each other and the cover is established on the guide bar, on the pressure spring the installation department with the upper end of pressure spring links to each other and the cover is established on the guide bar, the free end of guide bar be provided with the stop nut that the installation department stopped to on the pressure spring.
8. The universal wheel of claim 5, wherein a resilient pad is disposed between the other end of the rotating wheel mounting bracket and the second plate portion.
9. The caster of claim 1, wherein said rotatable wheel is a ball wheel.
10. A chassis assembly comprising a castor according to any one of claims 1 to 9.
11. a robot comprising the chassis assembly of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441896.5U CN209739209U (en) | 2019-04-02 | 2019-04-02 | universal wheel, chassis assembly and robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441896.5U CN209739209U (en) | 2019-04-02 | 2019-04-02 | universal wheel, chassis assembly and robot |
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| Publication Number | Publication Date |
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| CN209739209U true CN209739209U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920441896.5U Active CN209739209U (en) | 2019-04-02 | 2019-04-02 | universal wheel, chassis assembly and robot |
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| CN (1) | CN209739209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591096A (en) * | 2020-06-29 | 2020-08-28 | 北京猎户星空科技有限公司 | Suspension device, chassis with same and robot |
| CN113715928A (en) * | 2020-05-26 | 2021-11-30 | 杭州海康机器人技术有限公司 | Mobile platform and mobile robot |
| CN114644049A (en) * | 2022-04-28 | 2022-06-21 | 湖南超能机器人技术有限公司 | Wheel type obstacle crossing robot chassis |
-
2019
- 2019-04-02 CN CN201920441896.5U patent/CN209739209U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715928A (en) * | 2020-05-26 | 2021-11-30 | 杭州海康机器人技术有限公司 | Mobile platform and mobile robot |
| CN111591096A (en) * | 2020-06-29 | 2020-08-28 | 北京猎户星空科技有限公司 | Suspension device, chassis with same and robot |
| CN114644049A (en) * | 2022-04-28 | 2022-06-21 | 湖南超能机器人技术有限公司 | Wheel type obstacle crossing robot chassis |
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