CN211869069U

CN211869069U - Composite hub and hub electric locomotive wheel

Info

Publication number: CN211869069U
Application number: CN202020162994.8U
Authority: CN
Inventors: 刘静; 李跃强; 刘雨涵; 刘逸果
Original assignee: Chongqing Keda Machinery Co ltd
Current assignee: Chongqing Keda Machinery Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-11-06
Anticipated expiration: 2030-02-11

Abstract

The utility model discloses a composite hub, including the wheel hub body, be equipped with the rim on the wheel hub body, the inboard of rim is equipped with the go-between, radial inwardly extending's lug, adjacent two have all been laid to the annular on the inner wall of go-between form the draw-in groove that is used for installing in-wheel motor rotor magnetic steel sheet between the lug. The utility model discloses a combined material wheel hub sets up the lug through annular equipartition on the go-between inner wall to form the draw-in groove between two adjacent lugs, so, but in-wheel motor's rotor magnet steel direct joint is installed in the draw-in groove, has simple structure, convenient assembling's advantage, can satisfy in-wheel motor's installation requirement.

Description

Composite hub and hub electric locomotive wheel

Technical Field

The utility model relates to a wheel hub, specific be a combined material wheel hub and adopt this combined material wheel hub's wheel.

Background

Chinese patent with publication number CN203920248U discloses a wheel hub of an electric vehicle wheel hub motor, wheel hub includes rim and motor magnetic ring, motor magnetic ring fixes at the rim inboard and adopts the welding mode to connect, motor magnetic ring medial surface is used for pasting the motor permanent magnet, the valve installation hole that supplies the inflating valve to wear out from the rim has on the rim, the inner wall of above-mentioned valve installation hole is formed with annular boss for the rim from inside to outside evagination, the turn-over department of valve installation hole has the circular arc transition face. Although the wheel hub of the electric vehicle wheel hub motor improves the sealing performance of the inflating valve, the whole wheel hub is made of metal materials, and the problems of heavy weight, high manufacturing cost and high energy consumption of an electric vehicle adopting the wheel hub are solved.

The lightweight is the focus of wheel hub technology research and development, and the wheel hub lightweight can effectively alleviate vibration transmission, reduce inertia, reduce running resistance to make equipment operate steadily. At present, the hub is mostly made of composite materials so as to realize the light weight of the hub. For example, the chinese application with publication number CN104802423A discloses a method for preparing a fiber-reinforced thermoplastic resin-based composite material automobile hub, the chinese patent application with publication number CN106182814A discloses a method for manufacturing a composite material hub, and the chinese patent with publication number CNCN108274682A discloses a carbon fiber-reinforced polyether-ether-ketone thermoplastic composite material automobile hub and a method for manufacturing the same. These wheel hub manufacturing methods all pay attention to what kind of combined material realizes the wheel hub lightweight, but because the fibrous characteristic of combined material, can't directly drill in the combined material, therefore current combined material wheel hub all can only satisfy the preparation of the wheel hub that does not have the screw hole in inside, to the wheel hub that needs the installation in-wheel motor, because need set up threaded connection structure between wheel hub and in-wheel motor, current combined material wheel hub can't satisfy the operation requirement.

Disclosure of Invention

In view of this, the utility model aims at providing a combined material wheel hub and in-wheel motor wheel can satisfy in-wheel motor's installation requirement.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model discloses at first, a combined material wheel hub is proposed, including the wheel hub body, be equipped with the rim on the wheel hub body, the inboard of rim is equipped with the go-between, radial inwardly extending's lug, adjacent two have all been laid to the annular on the inner wall of go-between form the draw-in groove that is used for installing in-wheel motor rotor magnetic steel sheet between the lug.

Further, the length direction of the bump is parallel to the inner wall generatrix direction of the connecting ring.

Furthermore, the clamping groove is a dovetail groove.

Furthermore, a positioning ring extending radially inwards is arranged on the inner wall of the connecting ring.

Further, the positioning ring is located on the same side of all the bumps.

Further, the inner diameter of the positioning ring is smaller than the minimum distance of the lug from the axis of the connecting ring.

Further, the hub body is integrally formed by adopting a composite material, and embedded thread sleeves are pre-embedded in the end faces of the two ends of the connecting ring;

the embedded screw sleeve comprises a screw sleeve body, a threaded hole is formed in the screw sleeve body, and a circumferential rotation prevention section and an axial movement prevention structure are arranged on the outer wall of the screw sleeve body;

the section of a radial section perpendicular to the axis of the threaded hole, which is obtained on the circumferential rotation prevention section, is a circumferential rotation prevention section I, and the distances from points on the outer contour line I of the circumferential rotation prevention section I to the axis of the threaded hole are not completely equal;

and a curve obtained by the axial section passing through the axis of the threaded hole on the axial movement prevention structure is an axial movement prevention curve I, and the distance between the axial movement prevention curve I and the axis of the threaded hole is not completely equal.

Furthermore, the hub body is integrally formed by adopting a composite material, and a connecting through hole penetrating through the end faces of the two ends of the connecting ring is formed in the connecting ring;

the connecting through hole is a through hole with a smooth inner wall formed after the pre-buried cylindrical embedded part is drawn out; or the like, or, alternatively,

a pipe sleeve is pre-buried in the connecting ring, a central through hole is formed in the pipe sleeve, and the central through hole forms the connecting through hole.

Furthermore, the connecting through hole is a smooth through hole, or an internal thread is arranged in the connecting through hole;

the outer wall of the pipe sleeve is provided with a circumferential rotation prevention section; the section of the radial section perpendicular to the axis of the connecting through hole, which is cut on the circumferential rotation prevention section, is a circumferential rotation prevention section II, and the distance from a point on the outer contour line II of the circumferential rotation prevention section II to the axis of the connecting through hole is not completely equal.

Further, the rim is made of composite materials, and the connecting ring is made of metal materials and is embedded on the inner side of the rim;

the connecting ring comprises a connecting ring body, a central through hole is formed in the connecting ring body, and the inner wall of the connecting ring is the inner wall of the central through hole; the outer wall of the connecting ring body is provided with a circumferential rotation prevention section and an axial movement prevention structure;

a section obtained by cutting a radial section vertical to the axis of the central through hole on the circumferential rotation prevention section is a circumferential rotation prevention section III, and the distance between a point on an outer contour line III of the circumferential rotation prevention section III and the axis of the central through hole is not completely equal;

a curve obtained by an axial section passing through the axis of the central through hole on the axial movement prevention structure is an axial movement prevention curve III, and the distance between the axial movement prevention curve III and the axis of the central through hole is not completely equal; and along the direction from one end to the other end of the axial movement prevention curve III, a distance reduction interval with a reduced distance from the axis of the central through hole and a distance increase interval with an increased distance from the axis of the central through hole are arranged on the axial movement prevention curve III.

The utility model also provides an in-wheel motor wheel, including as above combined material wheel hub, the installation is equipped with in the combined material wheel hub in the in-wheel motor, in-wheel motor's rotor magnet steel is installed in the draw-in groove.

The beneficial effects of the utility model reside in that:

the utility model discloses a combined material wheel hub sets up the lug through annular equipartition on the go-between inner wall to form the draw-in groove between two adjacent lugs, so, but in-wheel motor's rotor magnet steel direct joint is installed in the draw-in groove, has simple structure, convenient assembling's advantage, can satisfy in-wheel motor's installation requirement.

Through pre-buried preset swivel nut that sets up in the link ring, and prevent the circumferential direction section and prevent the axial displacement structure through setting up on pre-buried swivel nut, when the wheel hub body adopted combined material integrated into one piece, combined material and pre-buried swivel nut on prevent the circumferential direction section and prevent between the axial displacement structure complete the gomphosis together, utilize combined material's shaping intensity, can effectively prevent pre-buried swivel nut for the rotation of wheel hub body and axial displacement, realize the technical purpose who sets up the screw hole in wheel hub body promptly, therefore, the utility model discloses a combined material wheel hub can satisfy the installation requirement of wheel hub motor etc..

The connecting through holes penetrating through the two ends of the connecting ring are formed in the connecting ring, and when the connecting through holes are smooth through holes, a screw rod can penetrate through the connecting through holes to realize the connection and installation of the hub motor; when connecting hole is the screw hole, can directly adopt supporting screw to install in-wheel motor on connecting hole, so, the utility model discloses a combined material wheel hub can satisfy in-wheel motor's installation requirement.

The rim is made of the composite material, so that the purpose of light weight can be achieved, and the connecting ring is made of the metal material and can be connected with other components like the existing metal hub; and through set up on metal-bonded ring prevent the circumferential direction section and prevent the axial displacement structure, when the rim adopted the combined material shaping, the metal-bonded ring was pre-buried in the rim, combined material and pre-buried metal-bonded ring shaping are as an organic whole, prevent on the metal-bonded ring circumferential direction section and prevent between the axial displacement structure complete the gomphosis together promptly, utilize combined material's shaping intensity, can effectively prevent that the metal-bonded ring from rotating and axial displacement for the wheel hub body, promptly the utility model discloses a combined structure wheel hub can enough realize the lightweight, can realize the erection joint of spare parts such as wheel hub motor again.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

fig. 1 is a schematic structural view of an embodiment 1 of the composite hub of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a perspective view of the composite hub of the present embodiment;

fig. 4 is a schematic structural view of the composite hub of embodiment 2 of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a schematic structural view of a pre-buried thread insert;

FIG. 7 is a cross-sectional view C-C of FIG. 6;

fig. 8 is a schematic structural view of embodiment 3 of the composite hub of the present invention;

fig. 9 is a schematic structural view of the composite hub of embodiment 4 of the present invention;

fig. 10 is a schematic structural view of the composite hub of embodiment 5 of the present invention;

FIG. 11 is a schematic view of the construction of a pipe sleeve;

FIG. 12 is a cross-sectional view D-D of FIG. 11;

fig. 13 is a schematic structural view of the composite hub of embodiment 6 of the present invention;

FIG. 14 is a cross-sectional view E-E of FIG. 13;

FIG. 15 is detail F of FIG. 14;

FIG. 16 is a schematic view of a hub structure with communication through holes;

fig. 17 is a schematic view of the hub structure when an internal thread is provided in the connecting through-hole.

Description of reference numerals:

1-a hub body; 2-a rim; 3-connecting rings; 4-a bump; 5-a clamping groove; 6-a positioning ring; 7-a groove; 8-ribbed plate; 9-embedding a threaded sleeve;

10-the thread insert body; 11-a threaded hole; 12-circumferential rotation prevention section I; 13-outer profile i; 13 a-a recessed section; 14-axial movement prevention curve I; 14 a-a concave inward section; 14 b-a convex section;

20-connecting vias; 21-a sleeve; 22-anti-circumferential rotation section II; 23-outer profile II; 23 a-a recessed section; 24-axial movement prevention curve ii; 24 a-a concave inward section; 24 b-a convex section;

30-a central through hole; 31-anti-circumferential rotation section III; 32-outer profile III; 32 a-a recessed section; 32 b-a convex section; 33-axial movement prevention curve iii; 34-a baffle ring; 35-connecting screw holes; 36-connecting vias.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Example 1

As shown in fig. 1, is a schematic structural view of embodiment 1 of the composite hub of the present invention. The composite material wheel hub of this embodiment, including wheel hub body 1, be equipped with rim 2 on the wheel hub body 1, the inboard of rim is equipped with go-between 3, and radial inwardly extending's lug 4 has all been laid to the ring on the inner wall of go-between 3, forms the draw-in groove 5 that is used for installing in-wheel motor rotor magnet steel sheet between two adjacent lugs 4.

Further, the length direction of the projection 4 of the embodiment is parallel to the inner wall bus direction of the connecting ring 3, so that the magnetic steel can be conveniently installed. The clamping groove 5 of the embodiment adopts a dovetail groove to prevent the magnetic steel from falling off in the radial direction.

Further, the inner wall of the connecting ring 3 of this embodiment is further provided with a positioning ring 6 extending radially inward for positioning the magnetic steel mounting position. The positioning ring 6 of this embodiment is located on the same side of all the bumps 4. The inner diameter of the positioning ring 6 in this embodiment is smaller than the minimum distance of the projection 4 from the axis of the connecting ring 3.

The wheel hub motor wheel of this embodiment, including the foretell combined material wheel hub of this embodiment, the installation is equipped with the wheel hub motor in the combined material wheel hub, and the rotor magnet steel of wheel hub motor is installed in draw-in groove 5. The hub motor wheel of this embodiment is the same as the prior art and will not be described one by one.

The combined material wheel hub of this embodiment sets up the lug through annular equipartition on the go-between inner wall to form the draw-in groove between two adjacent lugs, so, but in-wheel motor's rotor magnet steel direct joint installs in the draw-in groove, has simple structure, convenient assembling's advantage, can satisfy in-wheel motor's installation requirement.

Example 2

As shown in fig. 4, is a schematic structural view of embodiment 2 of the composite hub of the present invention. The composite material wheel hub of this embodiment, including wheel hub body 1, be equipped with rim 2 on the wheel hub body 1, the inboard of rim is equipped with go-between 3, and radial inwardly extending's lug 4 has all been laid to the ring on the inner wall of go-between 3, forms the draw-in groove 5 that is used for installing in-wheel motor rotor magnet steel sheet between two adjacent lugs 4.

Further, the hub body 1 is integrally formed by composite materials, and embedded screw sleeves 9 are embedded in the end faces of the two ends of the connecting ring 3. The pre-buried swivel nut 9 includes swivel nut body 10, is equipped with screw hole 11 in the swivel nut body 10, is equipped with on the outer wall of swivel nut body and prevents circumferential direction section and prevent axial displacement structure. Specifically, the section that the radial cross-section of the axis of perpendicular to screw hole 11 was cut on preventing the circumferential direction section is for preventing circumferential direction section I12, the distance of the point on the outline I13 of preventing circumferential direction section I12 apart from the axis of screw hole 11 is not equal completely, promptly if when pre-buried swivel nut takes place circumferential direction, because prevent that the distance of circumferential direction section apart from the axis of screw hole 11 is not equal completely, then prevent on the circumferential direction section apart from the screw hole 11 great position structure of distance can and the shaping take place to interfere between the combined material of wheel hub body 1, prevent pre-buried swivel nut to take place circumferential direction.

Specifically, cross the axial cross section of the axis of screw hole 11 and for preventing axial displacement curve I14 in preventing the structural curve that cuts of axial displacement, prevent that the distance of axial displacement curve I14 apart from the axis of screw hole 11 is not equal completely, when promptly if pre-buried swivel nut takes place axial displacement, prevent that the structural great position structure of distance apart from the axis of screw hole 11 of axial displacement can be the combined material of wheel hub body 1 with the shaping and take place to interfere, prevent pre-buried swivel nut from taking place axial displacement.

Specifically, the anti-circumferential rotation section can be realized by adopting various structures, such as:

the outer contour line I13 can be an eccentric circle which is eccentrically arranged relative to the axis of the threaded hole 11, and the technical purpose that the distance between the eccentric circle and the axis of the threaded hole 11 is not completely equal can be achieved;

at least one section of distance gradual change section is arranged on the outer contour line I13, and the distance from the distance gradual change section to the axis of the threaded hole 11 is gradually increased or gradually decreased; preferably, the distance gradual change section can be axially symmetrically arranged into two sections or annularly and uniformly arranged into at least three sections, namely the structure comprises various cams and other structures;

the outer contour line I13 is provided with at least one sunken section which is sunken inwards in the radial direction relative to the axis of the threaded hole 11, namely a groove-shaped structure in the circumferential direction is formed on the circumferential rotation prevention section, and the groove-shaped structure is embedded with the composite material, so that the circumferential rotation of the embedded thread sleeve can be prevented;

the outer contour line I13 is provided with at least one convex section which is convex outwards in the radial direction relative to the axis of the threaded hole 11, namely a convex structure in the circumferential direction is formed on the circumferential rotation prevention section, and the convex structure is embedded into the composite material, so that the circumferential rotation of the embedded thread sleeve can be prevented;

of course, it is also possible to provide at least one recessed section on the outer contour line i 13 that is recessed radially inward with respect to the axis of the threaded hole 11 and at least one raised section on the outer contour line i 13 that is raised radially outward with respect to the axis of the threaded hole 11, which will not be described in detail. Preferably, the concave section and/or the convex section are uniformly distributed in a ring shape relative to the axis of the threaded hole 11, so that the reliability of preventing circumferential rotation is better.

Of course, the anti-circumferential section can be set to other various structural forms, and the technical condition that the distance between a point on the outer contour line I13 of the anti-circumferential section I12 and the axis of the threaded hole 11 is not completely equal is only required to be met, so that the principle is equivalent, and the description is not repeated one by one.

Be equipped with on the outer profile line I13 of this embodiment for the radial inside sunken depressed section 13a of axis of screw hole 11, and the depressed section is annular equipartition setting for the axis of screw hole 11, prevents that circumferential direction's reliability is better.

Specifically, the axial movement prevention structure can be realized by adopting various structures, such as:

the distance from the axial movement preventing curve I14 to the axis of the threaded hole 11 along the direction from one end to the other end of the axial movement preventing curve I14 is gradually increased or gradually decreased, namely the axial movement preventing curve I14 is a straight line or a curve which is obliquely arranged relative to the axis of the threaded hole 11;

the axial movement prevention curve I14 is provided with at least one inward concave section which is concave towards the axis of the threaded hole 11, namely the axial movement prevention structure is a groove structure which is arranged on the outer wall of the embedded threaded sleeve in the axial direction, and the groove structure is embedded with the composite material, so that the embedded threaded sleeve can be prevented from moving axially;

the axial movement preventing curve I14 is provided with at least one convex section protruding outwards from the axis of the threaded hole 11, namely the axial movement preventing structure is a convex structure arranged on the outer wall of the embedded screw sleeve in the axial direction, and the convex structure is embedded into the composite material and can prevent the embedded screw sleeve from moving axially;

of course, at least one concave section concave towards the axis of the threaded hole 11 can be arranged on the axial movement prevention curve I14, and at least one convex section convex away from the axis of the threaded hole 11 can be arranged on the axial movement prevention curve I14, so that the description is not repeated.

Of course, the axial movement prevention structure can be set to other various structural forms, and only the technical condition that the distance between the axial movement prevention curve I14 and the axis of the threaded hole 11 is not completely equal is required to be met.

The axial movement prevention curve I14 of the embodiment is provided with at least one concave section 14a which is concave towards the axis of the threaded hole 11 and at least one convex section 14b which is convex outwards away from the axis of the threaded hole 11, the concave section and the convex section are arranged on the axial movement prevention curve I14 at intervals, and the axial movement prevention reliability is better.

Further, the threaded hole 11 is a blind hole formed in one end of the swivel nut body 10, and the open end of the threaded hole 11 is located on the end face of the connecting ring 3 where the threaded hole is located, so that when the hub body 1 is formed by adopting a composite material, the composite material can be effectively prevented from entering the embedded swivel nut. When the distance from one end of the axial movement preventing curve I14 to the axis of the threaded hole 11 along the direction from the other end of the axial movement preventing curve I14 is gradually increased or gradually decreased, the opening end of the threaded hole 11 is close to the end, closest to the axis of the threaded hole 11, of the axial movement preventing curve I14, and the embedded screw sleeve is prevented from being pulled out from the end face of the connecting ring 3 by axial tension.

Further, the embedded thread sleeves of the embodiment are annularly and uniformly distributed and embedded on the end faces of the corresponding connecting rings 3, so that the connection requirements of external structures such as the hub motor are met. The end faces of the two ends of the connecting ring 3 are respectively provided with a groove group positioned between two adjacent embedded thread sleeves, and each groove group comprises at least one groove 7. The groove group of the embodiment comprises two grooves 7, and a rib plate 8 is formed between the two grooves 7, so that the structural strength can be effectively enhanced.

Specifically, the composite material of the present embodiment includes, but is not limited to, a composite material reinforced with various fibers such as glass fibers, basalt fibers, and carbon fibers.

The combined material wheel hub of this embodiment, through pre-buried swivel nut 9 that sets up in the link, and prevent the circumferential direction section and prevent the axial displacement structure through setting up on pre-buried swivel nut 9, when the wheel hub body adopted combined material integrated into one piece, combined material and pre-buried on the swivel nut prevent the circumferential direction section and prevent the complete gomphosis between the axial displacement structure together, utilize combined material's shaping intensity, can effectively prevent pre-buried swivel nut and rotate and axial displacement for the wheel hub body, realize the technical purpose who sets up the screw hole in the wheel hub body promptly, therefore, the combined material wheel hub of this embodiment can satisfy the installation requirement of wheel hub motor etc..

Example 3

As shown in fig. 8, is a schematic structural view of embodiment 3 of the composite hub of the present invention. The composite material wheel hub of this embodiment, including wheel hub body 1, be equipped with rim 2 on the wheel hub body 1, the inboard of rim is equipped with go-between 3, and radial inwardly extending's lug 4 has all been laid to the ring on the inner wall of go-between 3, forms the draw-in groove 5 that is used for installing in-wheel motor rotor magnet steel sheet between two adjacent lugs 4.

The hub body 1 of the embodiment is integrally formed by adopting a composite material, and the connecting ring 3 is internally provided with a connecting through hole II 20 penetrating through the end faces of the two ends of the connecting ring; the connecting through hole II 20 is a through hole with a smooth inner wall formed after the pre-buried cylindrical embedded part is pulled out. Specifically, the pre-buried cylindricality built-in fitting that runs through its both ends that is equipped with in the go-between 3, the smooth through-hole of inner wall that the connect the through-hole II of this embodiment formed after being taken out by the cylindricality built-in fitting, and during the use, the bolt passes connect the through-hole and links to each other with in-wheel motor respectively, can realize the technical purpose of installation in-wheel motor.

Specifically, II annular equipartitions of connect the through-hole set up in go-between 3 to satisfy in-wheel motor's installation requirement. The composite material of the present embodiment includes, but is not limited to, a composite material reinforced with various fibers such as glass fibers, basalt fibers, and carbon fibers.

Example 4

As shown in fig. 9, is a schematic structural view of embodiment 3 of the composite hub of the present invention. The composite material wheel hub of this embodiment, including wheel hub body 1, be equipped with rim 2 on the wheel hub body 1, the inboard of rim is equipped with go-between 3, and radial inwardly extending's lug 4 has all been laid to the ring on the inner wall of go-between 3, forms the draw-in groove 5 that is used for installing in-wheel motor rotor magnet steel sheet between two adjacent lugs 4.

The hub body 1 of this embodiment is integrally formed of a composite material, and the connecting ring 3 is provided with a connecting through hole ii penetrating end faces of both ends thereof. The connecting through holes II are annularly and uniformly distributed in the connecting ring 3 so as to meet the installation requirement of the hub motor.

A pipe sleeve 21 is pre-buried in the connecting ring 3, a central through hole is formed in the pipe sleeve 21, and a connecting through hole II is formed in the central through hole. Specifically, the connecting through hole ii of the present embodiment is a smooth through hole. When the wheel hub motor mounting structure is used, the bolts penetrate through the connecting through holes to be connected with the wheel hub motor respectively, and the technical purpose of mounting the wheel hub motor can be achieved.

The outer wall of the sleeve 14 of this embodiment is a smooth cylindrical outer wall, and of course, the sleeve 14 may further be provided with a circumferential rotation prevention section and an axial movement prevention structure, and the detailed implementation of the circumferential rotation prevention section and the axial movement prevention structure is described in embodiment 5.

Example 5

As shown in fig. 10, is a schematic structural view of embodiment 3 of the composite hub of the present invention. The composite material wheel hub of this embodiment, including wheel hub body 1, be equipped with rim 2 on the wheel hub body 1, the inboard of rim is equipped with go-between 3, and radial inwardly extending's lug 4 has all been laid to the ring on the inner wall of go-between 3, forms the draw-in groove 5 that is used for installing in-wheel motor rotor magnet steel sheet between two adjacent lugs 4.

A pipe sleeve 21 is pre-buried in the connecting ring 3, a central through hole is formed in the pipe sleeve 21, and a connecting through hole II is formed in the central through hole. Specifically, the internal thread is arranged in the connecting through hole II of the embodiment, and when the hub motor is used, the hub motor can be directly installed on the connecting through hole through the matched screw.

The outer wall of the pipe sleeve 21 of the embodiment is provided with a circumferential rotation prevention section; the section of the radial section perpendicular to the axis of the connecting through hole II on the circumferential rotation prevention section is a circumferential rotation prevention section II 22, and the distance from a point on an outer contour line II 23 of the circumferential rotation prevention section II 22 to the axis of the connecting through hole II is not completely equal.

the outer contour line II 23 is an eccentric circle which is eccentrically arranged relative to the axis of the connecting through hole II, and the technical purpose that the distance between the eccentric circle and the axis of the connecting through hole II is not completely equal can be achieved;

at least one section of interval gradual change section is arranged on the outer contour line II 23, and the distance from the interval gradual change section to the axis of the connecting through hole II is gradually increased or gradually reduced; preferably, the distance gradual change section can be axially symmetrically arranged into two sections or annularly and uniformly arranged into at least three sections, namely the structure comprises various cams and other structures;

the outer contour line II 23 is provided with at least one sunken section which is sunken inwards in the radial direction relative to the axis of the connecting through hole II, namely a groove-shaped structure in the circumferential direction is formed on the circumferential rotation prevention section, and the groove-shaped structure is embedded with the composite material, so that the circumferential rotation of the embedded screw sleeve can be prevented;

the outer contour line II 23 is provided with at least one convex section which is protruded radially outwards relative to the axis of the connecting through hole II, namely a convex structure in the circumferential direction is formed on the circumferential rotation prevention section, and the convex structure is embedded into the composite material, so that the circumferential rotation of the embedded thread sleeve can be prevented;

of course, at least one concave section which is concave inwards in the radial direction relative to the axis of the connecting through hole II can be arranged on the outer contour line II 23, and at least one convex section which is convex outwards in the radial direction relative to the axis of the connecting through hole II is arranged on the outer contour line II 23, so that the description is omitted. Preferably, the sunken section and/or the protruding section are/is the annular equipartition setting for the axis of connecting through-hole II, prevent that circumferential direction's reliability is better.

Of course, the anti-circumferential section can be set to other various structural forms, and the technical condition that the distance from the point on the outer profile line II 23 of the anti-circumferential section II 22 to the axis of the connecting through hole II is not equal completely is only required to be met, so that the principle is equivalent, and the description is not repeated one by one.

Be equipped with on the outer profile line II 23 of this embodiment for the radial inside sunken depressed section 15a of axis of connect the through hole II, and the depressed section is annular equipartition setting for the axis of connect the through hole II, prevents that circumferential direction's reliability is better.

Further, an axial movement prevention structure is arranged on the outer wall of the pipe sleeve 21; and a curve obtained by the axial section of the axial line of the connecting through hole II on the axial movement prevention structure is an axial movement prevention curve II 24, and the distance from the axial movement prevention curve II 24 to the axial line of the connecting through hole II is not completely equal.

the axial movement prevention curve II 24 is provided with at least one inward concave section which is concave towards the axis of the connecting through hole II, namely the axial movement prevention structure is a groove structure which is arranged on the outer wall of the pipe sleeve 21 in the axial direction, and the groove structure is embedded with the composite material, so that the axial movement of the embedded screw sleeve can be prevented;

the axial movement prevention curve II 24 is provided with at least one convex section which is convex outwards away from the axis of the connecting through hole II, namely the axial movement prevention structure is a convex structure which is arranged on the outer wall of the pipe sleeve 21 in the axial direction, and the convex structure is embedded into the composite material, so that the axial movement of the embedded screw sleeve can be prevented;

certainly, at least one inward concave section which is concave towards the axis of the connecting through hole II can be arranged on the axial movement prevention curve II 24, and at least one outward convex section which is convex away from the axis of the connecting through hole II is arranged on the axial movement prevention curve II 24; preferably, the inner concave sections and/or the outer convex sections are/is arranged on the axial movement prevention curve II 24 at intervals, so that the axial movement prevention reliability is better;

the axial movement preventing structure can also be baffle rings which are arranged at two ends of the pipe sleeve 21 and extend outwards in the radial direction, and the baffle rings at the two ends can effectively prevent the pipe sleeve 21 from moving along the axial direction.

Of course, the axial movement prevention structure can be further arranged into other various structural forms, and only the technical condition that the distance between the axial movement prevention curve II 24 and the axis of the connecting through hole II is not completely equal is met.

The anti-axial-movement curve II 24 of the embodiment is provided with at least one concave section 24a which is concave towards the axis of the connecting through hole II and at least one convex section 24b which is convex towards the axis of the connecting through hole II, the anti-axial-movement curve II 24 is provided with at least one convex section 24b which is back to the axis of the connecting through hole II, the concave section and the convex section are arranged on the anti-axial-movement curve II 24 at intervals, and the anti-axial-movement reliability is better.

The end faces of the two ends of the connecting ring 3 are respectively provided with a groove group located between two adjacent embedded thread sleeves, and each groove group comprises at least one groove 7. The groove group of the embodiment comprises two grooves 7, and a rib plate 8 is formed between the two grooves 7, so that the structural strength can be effectively enhanced.

Example 6

As shown in fig. 13, is a schematic structural view of embodiment 6 of the composite hub of the present invention. The composite material wheel hub of this embodiment, including wheel hub body 1, be equipped with rim 2 on the wheel hub body 1, the inboard of rim is equipped with go-between 3, and radial inwardly extending's lug 4 has all been laid to the ring on the inner wall of go-between 3, forms the draw-in groove 5 that is used for installing in-wheel motor rotor magnet steel sheet between two adjacent lugs 4.

The rim 2 of the present embodiment is made of a composite material, and the connection ring 3 is made of a metal material and is embedded inside the rim 2.

The connecting ring of this embodiment includes the connecting ring body, is equipped with central through-hole 30 on the connecting ring body, and is equipped with on the outer wall of connecting ring body and prevents circumferential direction section and prevent axial displacement structure. Specifically, a section obtained by cutting a radial section perpendicular to the axis of the central through hole 30 on the circumferential rotation prevention section is a circumferential rotation prevention section iii 31, and the distance from a point on an outer contour line iii 32 of the circumferential rotation prevention section iii 31 to the axis of the central through hole is not completely equal; that is, if the connection ring 3 rotates circumferentially relative to the rim 2, since the distances from the circumferential rotation prevention section to the axis of the central through hole 30 are not completely equal, the position structure of the circumferential rotation prevention section having a larger distance from the central through hole 30 interferes with the composite material molded into the hub body 1, and the connection ring 3 is prevented from rotating circumferentially.

Specifically, a curve obtained by cutting an axial section of the axial line of the through-center hole 30 on the axial movement prevention structure is an axial movement prevention curve III 33, and the distances from the axial movement prevention curve III 33 to the axial line of the through-center hole 30 are not completely equal; and along the direction from one end to the other end of the axial movement preventing curve III 33, the axial movement preventing curve III 33 is provided with a distance decreasing interval with the decreasing distance from the axis of the central through hole 30 and a distance increasing interval with the increasing distance from the axis of the central through hole 30, so that the connecting ring 3 cannot axially move relative to the rim 2 along the two axial directions. The distance decreasing and distance increasing modes include a gradual change mode and a sudden change mode, wherein the gradual change mode is that the distance gradually changes, and the sudden change mode is that the distance suddenly changes by another numerical value (without a gradual change process), and the modes are not described repeatedly.

the outer contour line III 32 can be an eccentric circle which is eccentrically arranged relative to the axis of the central through hole 30, and the technical purpose that the distances between the eccentric circle and the axis of the central through hole 30 are not completely equal can be realized;

at least one section of interval gradual change section is arranged on the outer contour line III 32, and the distance from the interval gradual change section to the axis of the central through hole 30 is gradually increased or gradually decreased; preferably, the distance gradual change section can be axially symmetrically arranged into two sections or annularly and uniformly arranged into at least three sections, namely the structure comprises various cams and other structures;

the outer contour line III 32 is provided with at least one sunken section which is sunken inwards in the radial direction relative to the axis of the central through hole 30, namely, a groove-shaped structure in the circumferential direction is formed on the circumferential rotation prevention section, and the groove-shaped structure is embedded with the composite material and can prevent the connecting ring 3 from rotating in the circumferential direction;

the outer contour line III 32 is provided with at least one convex section which is convex outwards in the radial direction relative to the axis of the central through hole 30, namely a convex structure in the circumferential direction is formed on the circumferential rotation prevention section, and the convex structure is embedded into the composite material and can prevent the connecting ring 3 from rotating in the circumferential direction;

of course, it is also possible to provide at least one recessed section on the outer contour line iii 32, which is recessed radially inward relative to the axis of the central through hole 30, and at least one raised section on the outer contour line iii 32, which is raised radially outward relative to the axis of the central through hole 30, without further description. Preferably, the concave sections and/or the convex sections are uniformly distributed in a ring shape relative to the axis of the central through hole 30, so that the reliability of preventing circumferential rotation is better.

Of course, the anti-circumferential section may be configured in other various structural forms, and only the technical condition that the distance from the point on the outer contour line iii 32 of the anti-circumferential section iii 31 to the axis of the central through hole 30 is not completely equal is satisfied.

The outer profile line III 32 of the embodiment is provided with a concave section 32a which is radially inwards concave relative to the axis of the central through hole 30 and a convex section 32b which is radially outwards convex relative to the axis of the central through hole 30, and the concave section 32a and the convex section 32b are uniformly distributed and arranged in a ring shape relative to the axis of the central through hole 30, so that the reliability of preventing circumferential rotation is better.

the anti-axial-movement curve III 33 is provided with at least one inward concave section which is concave towards the axis of the central through hole 30, namely the anti-axial-movement structure is a groove structure which is arranged on the outer wall of the connecting ring 3 in the axial direction, and the groove structure is embedded with the composite material, so that the connecting ring 3 can be prevented from moving axially;

the anti-axial-movement curve III 33 is provided with at least one convex section which is convex outwards away from the axis of the central through hole 30, namely the anti-axial-movement structure is a convex structure which is arranged on the outer wall of the connecting ring 3 in the axial direction at the moment, and the convex structure is embedded into the composite material, so that the connecting ring 3 can be prevented from moving axially;

of course, it is also possible to provide at least one concave section concave toward the axis of the central through hole 30 on the anti-axial-movement curve iii 33 and at least one convex section convex away from the axis of the central through hole 30 on the anti-axial-movement curve iii 33, which will not be described again.

Preferably, the concave sections and/or the convex sections are arranged on the anti-axial-movement curve III 33 at intervals, so that the anti-axial-movement reliability is better.

The axial movement preventing structure of the embodiment is the baffle rings 34 which are arranged at two ends of the connecting ring body and extend outwards in the radial direction, the baffle rings 34 are respectively arranged at two ends of the connecting ring body, an annular groove is formed between the two baffle rings 34, and the rim 2 is embedded into the annular groove, so that the connecting ring 3 is axially fixed relative to the rim 2.

Of course, the axial movement prevention structure can be set to other various structural forms, and only the technical condition that the distance between the axial movement prevention curve iii 33 and the axis of the central through hole 30 is not completely equal is required to be met.

Further, the end surfaces of the two ends of the connecting ring body of the present embodiment are respectively provided with connecting screw holes 35, and the connecting screw holes 35 are respectively and annularly and uniformly distributed on the end surfaces of the two ends of the connecting ring body, as shown in fig. 2. Of course, the connecting ring body may also be provided with connecting through holes iii 36 penetrating through end faces of both ends of the connecting ring body, an axis of the connecting through hole iii 36 is parallel to an axis of the central through hole 30, and the connecting through holes iii 36 are annularly and uniformly distributed in the connecting ring body, as shown in fig. 5, the connecting through hole iii 36 may also be provided with internal threads, as shown in fig. 6.

Furthermore, the end faces of the two ends of the connecting ring body are respectively provided with a groove group positioned between two adjacent connecting screw holes 35 or two adjacent connecting through holes III 36, and the groove group comprises at least one groove 7. The groove group of the embodiment comprises two grooves 7, and a rib plate 8 is formed between the two grooves 7, so that the weight can be effectively reduced, and the structural strength can be enhanced.

The composite structure hub of the embodiment is divided into two parts, wherein one part is a rim made of composite materials, so that the purpose of light weight can be achieved, and the other part is a metal connecting ring made of metal materials, so that the composite structure hub can be connected with other parts like the existing metal hub; and through set up on metal-bonded ring prevent the circumferential direction section and prevent the axial displacement structure, when the rim adopts the combined material shaping, the metal-bonded ring is pre-buried in the rim, combined material and pre-buried metal-bonded ring shaping are as an organic whole, prevent on the metal-bonded ring that the circumferential direction section is put and prevent the complete gomphosis between the axial displacement structure and be in the same place promptly, utilize combined material's shaping intensity, can effectively prevent that the metal-bonded ring from rotating and axial displacement for the wheel hub body, the combined structure wheel hub of this embodiment promptly, can enough realize the lightweight, can realize the erection joint of spare parts such as wheel hub motor again.

Note: as used herein, "distances are not exactly equal" means that the numerical values of the distances have two or more unequal values.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A composite hub, comprising: including wheel hub body (1), be equipped with rim (2) on wheel hub body (1), the inboard of rim is equipped with go-between (3), radial inwardly extending lug (4) have all been laid to the annular on the inner wall of go-between (3), adjacent two form draw-in groove (5) that are used for installing in-wheel motor rotor magnet steel between lug (4).

2. The composite hub of claim 1, wherein: the length direction of the bump is parallel to the inner wall generatrix direction of the connecting ring (3).

3. The composite hub of claim 1, wherein: the clamping groove (5) adopts a dovetail groove.

4. The composite hub of claim 1, wherein: and the inner wall of the connecting ring (3) is also provided with a positioning ring (6) which extends radially inwards.

5. The composite hub of claim 4, wherein: the positioning ring (6) is positioned on the same side of all the lugs (4).

6. The composite hub of any of claims 1-5, wherein: the hub body (1) is integrally formed by adopting a composite material, and embedded thread sleeves are pre-embedded in the end faces of the two ends of the connecting ring (3);

the embedded screw sleeve comprises a screw sleeve body (10), a threaded hole (11) is formed in the screw sleeve body (10), and a circumferential rotation prevention section and an axial movement prevention structure are arranged on the outer wall of the screw sleeve body;

a section obtained by cutting a radial section perpendicular to the axis of the threaded hole (11) on the circumferential rotation prevention section is a circumferential rotation prevention section I (12), and the distances from points on an outer contour line I (13) of the circumferential rotation prevention section I (12) to the axis of the threaded hole (11) are not completely equal;

the curve of the axial section passing through the axis of the threaded hole (11) and obtained on the axial movement prevention structure is an axial movement prevention curve I (14), and the distances between the axial movement prevention curve I (14) and the axis of the threaded hole (11) are not completely equal.

7. The composite hub of any of claims 1-5, wherein: the hub body (1) is integrally formed by adopting a composite material, and a connecting through hole II (20) penetrating through the end faces of the two ends of the connecting ring (3) is formed in the connecting ring;

the connecting through hole II (20) is a through hole with a smooth inner wall formed after the pre-buried cylindrical embedded part is drawn out; or the like, or, alternatively,

a pipe sleeve (21) is pre-buried in the connecting ring (3), a central through hole is formed in the pipe sleeve (21), and the central through hole forms the connecting through hole II (20).

8. The composite hub of claim 7, wherein: the connecting through hole II (20) is a smooth through hole, or an internal thread is arranged in the connecting through hole II (20); the outer wall of the pipe sleeve (21) is provided with a circumferential rotation prevention section;

the section of a radial section perpendicular to the axis of the connecting through hole II (20) on the circumferential rotation prevention section is a circumferential rotation prevention section II (22), and the distance between a point on an outer contour line II (23) of the circumferential rotation prevention section II (22) and the axis of the connecting through hole II (20) is not equal completely.

9. The composite hub of any of claims 1-5, wherein: the wheel rim (2) is made of composite materials, and the connecting ring (3) is made of metal materials and is embedded inside the wheel rim (2);

the connecting ring comprises a connecting ring body, a central through hole (30) is formed in the connecting ring body, and the inner wall of the connecting ring (3) is the inner wall of the central through hole (30); the outer wall of the connecting ring body is provided with a circumferential rotation prevention section and an axial movement prevention structure;

a section obtained by cutting a radial section perpendicular to the axis of the central through hole (30) on the circumferential rotation prevention section is a circumferential rotation prevention section III (31), and the distances from points on an outer contour line III (32) of the circumferential rotation prevention section III (31) to the axis of the central through hole are not completely equal;

a curve obtained by an axial section passing through the axis of the central through hole (30) on the axial movement prevention structure is an axial movement prevention curve III (33), and the distances from the axial movement prevention curve III (33) to the axis of the central through hole (30) are not completely equal; and along the direction from one end to the other end of the axial movement preventing curve III (33), the axial movement preventing curve III (33) is provided with a distance decreasing interval with a distance decreasing from the axis of the central through hole (30) and a distance increasing interval with a distance increasing from the axis of the central through hole (30).

10. A wheel for a hub motor, comprising: a composite hub according to any one of claims 1 to 9, wherein a hub motor is mounted in the composite hub, and rotor magnetic steel of the hub motor is mounted in the clamping groove (5).