CN218197759U

CN218197759U - Support driving mechanism

Info

Publication number: CN218197759U
Application number: CN202221822487.8U
Authority: CN
Inventors: 刘子彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-01-03
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a support driving mechanism, which comprises an outer rotating frame, a rotating bearing, an inner supporting piece, a universal driving shaft and a supporting rod; the rotating bearing is arranged between the outer ring of the inner supporting piece and the inner ring of the outer rotating frame, so that the inner supporting piece supports the outer rotating frame, and the outer rotating frame can rotate relative to the inner supporting piece; the center of the inner supporting piece is provided with a central through hole, and the universal driving shaft passes through the central through hole of the inner supporting piece and is connected with the central position of the outer rotating frame; the eccentric supporting point is arranged at the eccentric position of the inner supporting piece, and the supporting rod is connected with the eccentric supporting point of the inner supporting piece. The structure mode of central drive and eccentric support is adopted, and the drive shaft and the support rod which are independently arranged respectively perform central drive and eccentric support, so that the stability and reliability of support are improved, and the drive efficiency is optimized. The utility model discloses an adopt support actuating mechanism's wheel frame.

Description

Support driving mechanism

Technical Field

The utility model relates to a rotating member's support and drive, in particular to support actuating mechanism and adopt wheel frame of this mechanism.

Background

In the field of mechanical construction, the market may involve the support and drive of a rotating member, for example a wheel, the hub of which resembles a rotating member and needs to be supported and driven simultaneously; and similar to the driving wheel in a belt wheel transmission system or a chain wheel transmission system, the supporting and the driving are required to be carried out simultaneously. At present, wheels or other rotating components needing to be supported and driven simultaneously are generally supported and driven concentrically, namely, a central shaft plays a role in supporting and driving simultaneously. In this way, in some application scenarios, for example, a wheel and a frame formed by the wheel, some defects and deficiencies may exist: firstly, the supporting point is located at the center of the rotating member, which also means that the gravity of the bearing body of the supporting point is finally concentrated to the center of the rotating member, and is not beneficial to optimally utilizing the gravity of the bearing body of the supporting point; secondly, the same shaft is a supporting shaft and a driving shaft, so that the borne main body is supported and stressed, and the torsion of rotary driving is borne, and the fatigue damage is easy.

Disclosure of Invention

To the above, an object of the utility model is to provide a support actuating mechanism, adopt the center drive, the structure mode of eccentric support, the drive shaft and the bracing piece of independent setting carry out center drive and eccentric support respectively, avoid both to unite two into one to improve the reliable and stable nature of support and optimize driven efficiency. The utility model discloses still lie in providing an adoption support actuating mechanism's wheel frame, frame and four group's formation center drive, eccentric supporting's structural mode, its focus that bears the weight of the main part moves forward, is favorable to improving the reliable and stable nature of support and optimizes driven efficiency.

The utility model adopts the technical proposal that: a supporting driving mechanism comprises an outer rotating frame, a rotating bearing, an inner supporting piece, a universal driving shaft and a supporting rod; the rotating bearing is arranged between the outer ring of the inner supporting piece and the inner ring of the outer rotating frame, so that the inner supporting piece supports the outer rotating frame, and the outer rotating frame can rotate relative to the inner supporting piece; the center of the inner supporting piece is provided with a central through hole, and the universal driving shaft passes through the central through hole of the inner supporting piece and is connected with the central position of the outer rotating frame; the eccentric supporting point is arranged at the eccentric position of the inner supporting piece, and the supporting rod is connected with the eccentric supporting point of the inner supporting piece.

Further, it all is circular component to rotate frame and interior support piece, and rotates the transversal personally submitting "[" type of frame to be formed with circular holding groove body, rolling bearing, interior support piece hold the setting in the circular holding groove body that rotates the frame.

Further, universal drive shaft is the connecting rod drive shaft that is formed by the pivot interconnect more than two, and the pivot more than two is connected through the universal joint structure each other, the universal joint structure includes first U type portion, second U type portion and cross component, first U type portion, second U type portion set up respectively at the tip of two pivots of interconnect, and violently, perpendicular corresponding the setting, the cross component includes the cross axle and the vertical axis that the cross set up, and its cross axle, vertical axis correspond respectively with violently, perpendicular and set up first U type portion, second U type portion and rotate the connection.

Further, at least one rotating shaft of the connecting rod driving shaft is provided with a telescopic structure.

Further, the eccentric supporting point of the inner supporting piece is a fixed connecting structure and is positioned in the middle between the center and the edge of the inner supporting piece.

Further, a shielding cover plate is arranged corresponding to the rotating bearing; the shielding cover plate is arranged on the outer rotating frame or the inner supporting piece and shields the rotating bearing.

The wheel frame adopting the support driving mechanism comprises four groups of support driving mechanisms and a frame, wherein the four groups of support driving mechanisms are arranged in a square layout, eccentric supporting points of inner supporting pieces of the four groups of support driving mechanisms are all positioned on the inner side, the eccentric supporting points on the inner supporting pieces are all positioned in front of the central point of the inner supporting piece, and the frame is respectively connected with supporting rods on the inner supporting pieces of the four groups of support driving mechanisms to form an integral supporting frame.

Furthermore, the frame is a frame-shaped frame and is integrated with the support rods on the inner support pieces of the four groups of support driving mechanisms.

Further, the eccentric supporting points of the inner supporting pieces of the four groups of supporting driving mechanisms are positioned on the same plane. The eccentric supporting points of the inner supporting pieces of the four groups of supporting and driving mechanisms and the central point of the inner supporting piece are positioned on the same plane.

Furthermore, in the four groups of support driving mechanisms, the center through hole of the inner supporting piece and the universal driving shaft are eliminated by the two groups of support driving mechanisms on the front side and the left side or the right side or the rear side and the left side.

The utility model has the advantages of it is following: the supporting driving mechanism with central driving and eccentric supporting is formed by the mutual matching of the outer rotating frame, the rotating bearing, the inner supporting piece, the universal driving shaft and the supporting rod; the driving shaft and the supporting rod which are relatively independently arranged are respectively used for central driving and eccentric supporting, and the two are prevented from being combined into one, so that the stability and the reliability of the supporting are improved, and the driving efficiency is optimized. In addition, the wheel frame, the frame and the four groups of the wheel frame adopting the support driving mechanism form a structural mode of central driving and eccentric support, and the gravity center of a bearing main body moves forwards, so that the stability and the reliability of the support are improved, and the driving efficiency is optimized.

The present invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the overall structure of a support driving mechanism;

FIG. 2 is a schematic structural view of the hidden shielding cover plate of FIG. 1;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 4 is a schematic view of the fitting structure of the universal driving shaft, the supporting rod and the inner supporting member;

FIG. 5 is a schematic view of the wheel frame;

in the figure: an outer rotating frame 1; a circular accommodation tank body 11; a rotation bearing 2; an inner support 3; a central through hole 31; an eccentric support point 32; a universal drive shaft 4; a first U-shaped portion 41; a second U-shaped portion 42; a cross member 43; a telescopic structure 44; a support rod 5; a shielding cover plate 6; a frame 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial \8230 \ 8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship, motion condition, etc. of the components at a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first" or "second" etc. in the embodiments of the present invention, the description of "first" or "second" etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, the supporting driving mechanism provided in this embodiment includes an outer rotating frame 1, a rotating bearing 2, an inner supporting member 3, a universal driving shaft 4, and a supporting rod 5; the rotating bearing 2 is arranged between the outer ring of the inner support piece 3 and the inner ring of the outer rotating frame 1, so that the inner support piece 3 supports the outer rotating frame 1, and the outer rotating frame 1 can rotate relative to the inner support piece 3; the inner support 3 is provided with a central through hole 31 at the center thereof, and the universal driving shaft 4 passes through the central through hole 31 of the inner support 3 and is connected with the central position of the outer rotating frame 1; the inner support 3 is provided with an eccentric supporting point 32 at an eccentric position thereof, and the supporting rod 5 is connected with the eccentric supporting point 32 of the inner support 3.

It should be noted that the above-mentioned rotating bearing 2 may be an integral ring bearing, or may be a plurality of bearings arranged in a ring shape and disposed between the outer ring of the inner supporting member and the inner ring of the outer rotating frame, so as to realize the supporting function of the inner supporting member on the outer rotating frame and to enable the outer rotating frame to rotate relative to the inner supporting member. The rotating bearing is a common mechanical component in the art, and the specific structure thereof is not described herein. In addition, the connection structure between the universal driving shaft 4 and the center of the outer rotating frame 1 can be connected by shaft hole key, can be connected by direct thread screw hole, can be connected by welding, and can be connected by screw locking and the like.

Specifically, it all is circular component to rotate frame 1 and interior support 3, and rotates frame 1's cross section and personally submit "[" type to be formed with circular holding groove 11, rolling bearing 2, interior support 3 hold and set up 11 in the circular holding groove that rotates frame 1. In this way, the inner support 3 can better support and rotate the outer rotating frame 1 through the rotating bearing 2. The outer side of the rotating outer frame can be sleeved with components such as a tire (applied to a frame), a belt wheel, a chain wheel (applied to a driving belt or a chain) and the like according to the practical application of the supporting and driving mechanism.

Specifically, universal drive shaft 4 is the connecting rod drive shaft that is formed by the mutual connection of more than two pivots, and more than two pivots are connected through the universal joint structure each other, the universal joint structure includes first U type portion 41, second U type portion 42 and cross member 43, first U type portion 41, second U type portion 42 set up respectively in the tip of two pivots of interconnect, and violently, perpendicular corresponding the setting, cross member 43 includes the cross axle and the vertical axis that the cross set up, and its cross axle, vertical axis correspond respectively with violently, perpendicular and set up first U type portion 41, second U type portion 42 and carry out the swivelling joint. The conventional structure between the two rotating shafts of the universal joint structure is not limited to the structure formed by the first U-shaped portion 41, the second U-shaped portion 42 and the cross member 43, but other universal joint structures such as a ball joint structure may be applied.

More specifically, at least one of the rotation shafts of the link driving shaft is provided with a telescopic construction 44.

It should be noted that the driving shaft is configured as a universal driving shaft because a certain degree of adaptability is required to drive the rotating outer frame, so as to prevent excessive force from falling onto the driving shaft. After the universal driving shaft is adopted, the connecting rod driving shaft and the universal joint structure exist, so that the rotating outer frame can be driven, a joint moving space can be reserved, vibration can be adapted, and excessive stress is prevented from falling on the driving shaft. The eccentric supporting point of the supporting rod connected with the inner supporting piece becomes a main supporting stress point. In addition, one rotating shaft of the connecting rod driving shaft is provided with a telescopic structure, so that the universal driving shaft can adapt to the telescopic effect. The specific structure of the telescopic structure of the rotating shaft comprises a left section and a right section which cannot rotate mutually but can be telescopic mutually, which is a conventional technology in the field and is not described herein.

In particular, the eccentric support point 32 of the inner support 3 is a fixed connection structure, located at an intermediate position between the center and the edge of the inner support 3. The position of the eccentric supporting point on the inner supporting piece can be selectively set according to actual requirements. The main purposes of the method are as follows: firstly, the supporting rod is fixedly arranged; secondly, eccentric support is realized. Generally, a polygonal fixing hole can be adopted, and then a polygonal support rod matched with the fixing hole is adopted as the support rod, in short, the support rod is fixedly arranged at an eccentric support point and cannot rotate, so that an eccentric support effect is realized.

Specifically, a shielding cover plate 6 is arranged corresponding to the rotating bearing 2; the shielding cover plate 6 is arranged on the outer rotating frame 1 or the inner supporting piece 3 (the arrangement mode can be that screws and screw holes are matched and locked, and can also be welded, fastened and the like), and the rotating bearing 2 is shielded. In order to avoid the rotary bearing from being exposed outside, a shielding cover plate can be correspondingly arranged in a matched manner to shield the rotary bearing. The shielding cover plate is arranged on the outer rotating frame or the rotating bearing in two modes which can be selected; if the outer rotating frame is arranged on the outer rotating frame, the outer rotating frame rotates along with the outer rotating frame; if the inner supporting piece is arranged, the inner supporting piece is fixed and cannot rotate along with the outer rotating frame. The two setting modes of the shielding cover plate can both play a shielding role on the rotating bearing.

Referring to fig. 1 to 5, the wheel frame using the support driving mechanism includes four sets of support driving mechanisms and a frame 7, wherein the four sets of support driving mechanisms are arranged in a square configuration, the eccentric support points 32 of the inner support members 3 of the four sets of support driving mechanisms are all located at the inner side, the eccentric support points 32 on the inner support members 3 are all located in front of the central point of the inner support members 3, and the frame 7 is connected with the support rods 5 on the inner support members 3 of the four sets of support driving mechanisms respectively to form an integral support frame.

The wheel frame is one of the main applications of the support driving mechanism. As shown in the figure, the four groups of support driving mechanisms respectively correspond to the four tires and are arranged in a square layout. The eccentric supporting points of the four groups of supporting driving mechanisms are all moved forwards; that is, after the support rods at the front, rear, left and right ends of the frame are connected with the eccentric support points, the center of gravity of the frame moves forward, and a forward tilting trend is formed. Once the frame is driven, the system can quickly respond and improve the driving efficiency.

Specifically, the frame 7 is a frame-type frame, and is integrally configured with the support rods 5 on the inner support members 3 of the four sets of support driving mechanisms (i.e., the support rods 5 are integrated on the frame 7). Generally, the frame can be arranged into frame shapes such as I shapes, groined shapes, square shapes and the like according to requirements. In addition, the frame can also be formed by connecting frame rods in a welding mode, a fastening mode and the like.

Specifically, the eccentric support points 32 of the inner support members 3 of the four sets of support driving mechanisms are located on the same plane. The eccentric supporting points 2 of the inner supporting pieces 3 of the four groups of supporting driving mechanisms and the central points of the inner supporting pieces 3 are positioned on the same plane. In order to make the arrangement of the frame more reasonable, the eccentric supporting points of the inner supporting pieces of the four groups of supporting and driving mechanisms are positioned on the same plane, so that the frame can be in a horizontal arrangement state.

Specifically, in other embodiments, the two sets of front left and right support driving mechanisms or the two sets of rear left and right support driving mechanisms do not need the central through hole of the inner support and the universal driving shaft. The driving of the vehicle is divided into front driving, rear driving and four driving; if the front wheel frame is driven forwards, two groups of support driving mechanisms in front of the wheel frame are provided with universal driving shafts; if the rear drive is adopted, the two groups of support driving mechanisms are provided with universal driving shafts; if the four-wheel drive is adopted, the four groups of support driving mechanisms are provided with universal driving shafts.

The utility model discloses be not limited to above-mentioned embodiment, adopt and the same or similar technical characteristics of the above-mentioned embodiment of the utility model, and the other kind that obtains supports actuating mechanism and adopts the wheel frame of this mechanism, all is within the protection scope of the utility model.

Claims

1. A support driving mechanism is characterized by comprising an outer rotating frame, a rotating bearing, an inner supporting piece, a universal driving shaft and a supporting rod; the rotating bearing is arranged between the outer ring of the inner supporting piece and the inner ring of the outer rotating frame, so that the inner supporting piece supports the outer rotating frame, and the outer rotating frame can rotate relative to the inner supporting piece; the center of the inner supporting piece is provided with a central through hole, and the universal driving shaft passes through the central through hole of the inner supporting piece and is connected with the central position of the outer rotating frame; the eccentric supporting point is arranged at the eccentric position of the inner supporting piece, and the supporting rod is connected with the eccentric supporting point of the inner supporting piece.

2. The support driving mechanism as claimed in claim 1, wherein the outer rotating frame and the inner supporting member are circular members, and the outer rotating frame has a cross section of "[" shape, thereby forming a circular receiving groove, and the rotating bearing and the inner supporting member are received and disposed in the circular receiving groove of the outer rotating frame.

3. The support driving mechanism according to claim 1, wherein the universal driving shaft is a link driving shaft formed by connecting two or more rotating shafts to each other, the two or more rotating shafts are connected to each other by a universal joint structure, the universal joint structure includes a first U-shaped portion, a second U-shaped portion, and a cross member, the first U-shaped portion and the second U-shaped portion are respectively provided at ends of the two rotating shafts connected to each other, and are provided in a horizontal and vertical direction, the cross member includes a horizontal shaft and a vertical shaft which are provided in a crisscross manner, and the horizontal shaft and the vertical shaft are respectively provided in a rotational connection with the first U-shaped portion and the second U-shaped portion which are provided in a horizontal and vertical direction.

4. A support drive mechanism as claimed in claim 3, wherein at least one of the axes of rotation of the connecting rod drive shafts is provided with a telescopic construction.

5. The support drive mechanism of claim 1, wherein the eccentric support point of the inner support member is a fixed connection structure located at an intermediate position between the center and the edge of the inner support member.

6. The support drive mechanism according to claim 1, wherein a shield cover plate is provided in correspondence with the rotary bearing; the shielding cover plate is arranged on the outer rotating frame or the inner supporting piece and used for shielding the rotating bearing.