A hub bearing and a vehicle hub

Abstract

The application relates to the technical field of hub bearings, and provides a hub bearing and an automobile hub. The hub bearing comprises an inner ring, an outer ring and rolling bodies. The inner ring is provided with a bearing seat, the inner ring is sleeved on the outer circumferential wall of the bearing seat, the outer ring is sleeved on the outer circumferential side of the inner ring, and the rolling bodies are embedded between the inner ring and the outer ring. One end of the bearing seat is provided with a positioning cylinder, the positioning cylinder is used for plug-in positioning with the automobile hub. The outer circumferential wall of the bearing seat is provided with a first flange plate used for connecting the automobile hub. The first flange plate is provided with a plurality of first connecting holes, and the plurality of first connecting holes are arranged at intervals around the central axis of the positioning cylinder. The hub bearing can improve the disassembly and assembly convenience between the hub bearing and the automobile hub.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hub bearings, in particular to a hub bearing and an automobile hub. BACKGROUND

[0002] The main function of a hub bearing is to bear weight and provide precise guidance for the rotation of the hub. It bears both axial and radial loads and is a very important component. The hub bearing mainly includes an inner ring for connecting the automobile hub, an outer ring for connecting the automobile knuckle, and a rolling body arranged between the inner ring and the outer ring.

[0003] In the prior art, a common connection method between the inner ring of the bearing and the automobile hub is through interference fit connection, that is, when the bearing inner ring is manufactured, the diameter of the bearing inner ring is slightly larger than the hole diameter of the hub, and interference fit is generated between the bearing inner ring and the hub through pressure or temperature difference method, so as to realize fastening connection. However, such method is relatively cumbersome, time-consuming and laborious during subsequent disassembly, and the disassembly process is easy to cause structural damage to the bearing or the hub, so further improvement is needed. SUMMARY

[0004] In order to improve the disassembly convenience between the hub bearing and the automobile hub, the present application provides a hub bearing and an automobile hub.

[0005] In a first aspect, the hub bearing provided by the present application adopts the following technical scheme:

[0006] A hub bearing includes an inner ring, an outer ring, and a rolling body. The inner ring is provided with a bearing seat, the inner ring is sleeved on the outer peripheral wall of the bearing seat, the outer ring is sleeved on the outer peripheral side of the inner ring, and the rolling body is embedded between the inner ring and the outer ring. One end of the bearing seat is provided with a positioning cylinder, the positioning cylinder is used for plug-in positioning with the automobile hub, the outer peripheral wall of the bearing seat is provided with a first flange plate for connecting the automobile hub, the first flange plate is provided with a plurality of first connecting holes, and the plurality of first connecting holes are arranged at intervals around the central axis of the positioning cylinder.

[0007] By adopting the above technical scheme, when the hub bearing and the automobile hub are installed, the positioning cylinder of the bearing seat is plug-in positioned with the automobile hub to quickly keep the automobile hub coaxial with the hub bearing. Then, the first flange plate is connected to the automobile hub in the form of bolt connection through the plurality of first connecting holes of the first flange plate, so as to quickly install the automobile hub on the bearing seat of the inner ring, thereby greatly improving the disassembly convenience between the hub bearing and the automobile hub.

[0008] In a second aspect, the automobile hub provided by the present application adopts the following technical scheme:

[0009] The application relates to an automobile wheel hub for connecting the wheel hub bearing, which comprises a wheel rim, spokes and a mounting seat, wherein the outer ends of the spokes are connected with the wheel rim, and the inner ends of the spokes are connected with the mounting seat; the mounting seat is provided with a central hole for inserting and positioning a positioning cylinder; the mounting seat is provided with a plurality of second connecting holes which are arranged at intervals around the central axis of the central hole, and the second connecting holes are arranged in correspondence with the first connecting holes; a locking bolt is connected with the first flange plate, the locking bolt is sequentially arranged in the first connecting hole and the second connecting hole, and a locking nut is arranged in the second connecting hole and is sleeved with the locking bolt and is in threaded connection with the locking bolt.

[0010] By adopting the technical scheme, the positioning cylinder of the bearing seat is inserted into the central hole of the mounting seat when the wheel hub bearing is mounted on the automobile wheel hub, thereby realizing the quick centering between the wheel rim and the bearing seat and keeping the wheel rim and the bearing seat coaxial; then the locking nuts are sequentially arranged in the second connecting holes, the locking nuts are locked with the locking bolt, thereby fixing the mounting seat on the bearing seat, and the dismounting convenience of the overall structure is improved.

[0011] Optionally, the mounting seat is provided with a mounting groove which is annularly arranged around the central axis of the central hole, the mounting groove is located on the side of the second connecting hole close to the first flange plate, and each second connecting hole is communicated with the mounting groove; an installation ring is slidably arranged in the mounting groove, and the installation ring is provided with a through hole for the locking bolt to pass through; the mounting groove is provided with a first point and a second point, and the second point is located on the side of the first point close to the second connecting hole; a first spring is arranged between the installation ring and the mounting seat, and under normal circumstances, the first spring forces the installation ring to slide to the second point; when the locking nut is screwed on the locking bolt, the installation ring slides to the first point, and the first spring is deformed and has elastic force.

[0012] By adopting the technical scheme, under normal circumstances, the installation ring slides to the second point of the mounting groove under the action of the first spring, the locking nut is rotated to lock the locking bolt, and the locking nut slides along the axial direction of the locking bolt, the installation ring is pushed and forced to slide to the first point of the mounting groove, thereby extruding the first spring and forcing the first spring to contract and generate elastic force; the elastic force is applied to the locking nut, thereby keeping the locking nut tightly pressed, reducing the possibility that the locking nut is freely rotated and causes the locking nut to fall off, and improving the stability of the overall structure.

[0013] Optionally, the mounting ring is provided with a plurality of abutment blocks, the plurality of abutment blocks are provided correspondingly with the plurality of locking nuts, each abutment block is slidably mounted on the mounting ring to be able to slide along the radial direction of the mounting ring; the outer circumferential wall of the positioning cylinder is provided with a plurality of abutment grooves, the plurality of abutment grooves are provided correspondingly with the plurality of abutment blocks; each abutment block and the mounting ring are provided with a second spring, when the mounting ring is located at the second position, the second spring forces the abutment block to partially extend into the center hole and be inserted into the corresponding abutment groove of the positioning cylinder; each abutment block is provided with an unlocking piece, when the locking nut abuts against the mounting ring, the unlocking piece forces the corresponding abutment block to be separated from the corresponding abutment groove.

[0014] By adopting the technical scheme, when the positioning cylinder of the bearing seat is inserted into the center hole of the mounting seat, at this time, the abutment block partially extends into the center hole and is inserted into the corresponding abutment groove of the positioning cylinder under the action of the second spring, thereby realizing the clamping and fixing of the position between the mounting ring and the positioning cylinder. Then, the plurality of locking nuts are rotated in sequence, so as to force the locking nuts to abut against the mounting ring, at this time, the locking nuts force the corresponding abutment block to be separated from the corresponding abutment groove through the unlocking piece; when all the locking nuts abut against the mounting ring, all the abutment blocks are forced to be separated from the abutment grooves, thereby releasing the limiting effect of the mounting ring; at this time, the plurality of locking nuts are rotated in sequence, so as to make the locking nuts be screwed with the corresponding locking bolts, that is, in this state, the mounting ring can be forced to slide from the second position to the first position.

[0015] The effect achieved is that the mounting ring is relatively fixed at the second position in the initial state under the clamping and limiting of the abutment block and the abutment groove, thereby avoiding the possibility that the locking nut is once rotated too tightly, and forcibly requiring the operator to rotate all the locking nuts in sequence and forcing all the locking nuts to abut against the mounting ring, so as to unlock the mounting ring and continue to rotate the locking nut, so that the mounting ring slides to the first position. The possibility that the operator once rotates a certain locking nut too tightly when locking the locking nut is avoided, thereby improving the connection effect between the mounting seat and the first flange plate.

[0016] Moreover, the abutment block and the abutment groove increase an "insurance" for the mounting seat and the bearing seat, that is, even if the locking nut is accidentally separated from the locking bolt, the mounting ring can be reset to the second position under the action of the first spring, at this time, the abutment block can be embedded into the abutment groove under the action of the second spring, thereby reducing the possibility that the mounting seat and the bearing seat are directly separated due to the separation of the locking nut, and improving the safety of the overall structure.

[0017] Optionally, the unlocking member comprises an unlocking rod, the unlocking rod is slidingly installed in the mounting ring, the abutting block is provided with an unlocking slot through which the unlocking rod passes, and normally, the second spring forces one end of the unlocking rod to extend to the side of the mounting ring close to the locking nut through the unlocking slot of the abutting block; when the mounting ring is located at the second position and the locking nut is driven to abut against the mounting ring, the locking nut pushes the unlocking slot of the abutting block through the unlocking rod, so as to force the abutting block to be separated from the corresponding abutting slot.

[0018] By adopting the technical scheme, normally (when the locking nut is not sleeved on the locking bolt), the second spring forces one end of the unlocking rod to extend to the side of the mounting ring close to the locking nut through the unlocking slot of the abutting block, so as to push the locking nut. The locking nut is sleeved on the locking bolt and is rotated, so that the locking nut slides towards the mounting ring, and in this process, the locking nut can push one end of the unlocking rod, so as to push the abutting block through the inner wall of the unlocking slot and force the abutting block to be separated from the corresponding abutting slot. After the above-mentioned operation is repeated and the plurality of locking nuts are sequentially rotated, the mounting ring can be completely unlocked; at this time, the plurality of locking nuts are sequentially tightened by means of diagonal rotation, so as to force the mounting ring to slide from the second position to the first position, complete the connection between the mounting seat and the bearing seat, and improve the connection quality between the mounting seat and the bearing seat.

[0019] Optionally, the positioning cylinder is provided with a guide surface at the end away from the bearing seat, and when the positioning cylinder is inserted into the center hole, the positioning cylinder forces the abutting block to move out of the center hole through the guide surface.

[0020] By adopting the technical scheme, when the positioning cylinder of the bearing seat can be inserted into the center hole, the abutting block is forced to move out of the center hole through the guide surface, so as to reduce the possibility that the abutting block blocks the center hole position and causes the positioning cylinder to be unable to be inserted into the center hole.

[0021] Optionally, the end of the center hole away from the bearing seat is provided with a connecting sleeve, the connecting sleeve is provided with a decorative block, and the decorative block is provided with a plugging assembly for plugging the abutting slot.

[0022] By adopting the technical scheme, when it is necessary to force the mounting seat and the bearing seat to be separated (i.e., when it is necessary to disassemble the automobile hub), the abutting slot is plugged by the plugging assembly, and then all the locking nuts are sequentially disassembled, the mounting ring is reset to the second position under the action of the first spring, and at this time, since the abutting slot is plugged, the mounting seat can be pulled out, so that the mounting seat and the bearing seat are separated, and the operation convenience of the overall structure is improved.

[0023] Optionally, the outer peripheral wall of the positioning cylinder is provided with a plurality of sliding grooves, the plurality of sliding grooves are correspondingly arranged with the plurality of butt grooves, one end of each of the sliding grooves is communicated with the corresponding butt groove, and the other end penetrates the end surface of the facing block close to the positioning cylinder; the plugging assembly comprises a connecting ring, a plugging strip, a third spring and a limiting piece, the connecting ring is rotatably installed on the surface of the facing block close to the positioning cylinder, the plugging strip is provided with a plurality of plugging strips and is correspondingly arranged with the plurality of sliding grooves, one end of each of the plugging strips is connected to the connecting ring, and the other end is arranged in the corresponding sliding groove and covers the corresponding butt groove of the sliding groove; the third spring is arranged between the connecting sleeve and the connecting ring, and under normal circumstances, the third spring forces the plugging strip to separate from the butt groove; and the limiting piece is arranged between the facing block and the connecting sleeve to force the plugging strip to cover the butt groove.

[0024] By adopting the above technical scheme, when the automobile hub needs to be disassembled, the facing block drives the plugging strip to slide towards the side close to the positioning cylinder, forcing the plugging strip to cover the butt groove, at this time, the limiting piece forces the plugging strip to cover the butt groove, and then the locking nut is disassembled, so that the mounting seat can be disassembled, improving the operation convenience of the overall structure.

[0025] Optionally, the inner peripheral wall of the connecting sleeve is provided with a movable groove, the limiting piece comprises a limiting column, one end of the limiting column is connected to the outer peripheral wall of the facing block, and the other end is slidably inserted into the movable groove; the movable groove comprises a moving part and a rotating part, the moving part is arranged along the central axis of the connecting sleeve, the two ends of the moving part form a third point and a fourth point respectively, and the third point is located on the side close to the positioning cylinder of the fourth point; under normal circumstances, the third spring forces the limiting column of the facing block to slide to the fourth point, and the plugging strip separates from the butt groove; the rotating part is annularly arranged around the central axis of the connecting sleeve and is communicated with the third point, when the limiting column is driven to slide to the third point and turn into the rotating part, the end of the plugging strip away from the connecting ring covers the butt groove.

[0026] By adopting the above technical scheme, when the automobile hub is disassembled, the facing block is pressed, the limiting column of the facing block is forced to slide from the fourth point to the third point, thereby driving the plugging strip to slide and cover the butt groove; then the facing block is rotated, the limiting column of the facing block is forced to turn into the rotating part of the movable groove, thereby forcing the plugging block to cover the butt groove, so as to separate the mounting seat and the bearing seat, and the operation convenience of the overall structure is greatly improved.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By the setting of the positioning cylinder and the first flange plate, when the hub bearing is installed with the automobile hub, the positioning cylinder of the bearing seat is inserted and positioned with the automobile hub to quickly make the automobile hub coaxial with the hub bearing. Then the first flange plate is connected to the automobile hub in the form of bolt connection through the first connecting hole of the first flange plate, thereby realizing the quick installation of the automobile hub on the bearing seat of the inner ring, and greatly improving the disassembly convenience between the hub bearing and the automobile hub;

[0029] 2. By the setting of the butt joint block and the butt joint groove, when the positioning cylinder of the bearing seat is inserted into the center hole of the mounting seat, at this time the butt joint block locally extends into the center hole and is inserted into the corresponding butt joint groove of the positioning cylinder, realizing the clamping and fixing of the position between the mounting ring and the positioning cylinder. Then the locking nuts are rotated in turn, forcing the locking nuts to abut against the mounting ring, at this time the locking nuts force the corresponding butt joint blocks to separate from the corresponding butt joint grooves through the unlocking piece; when all the locking nuts abut against the mounting ring, it forces all the butt joint blocks to separate from the butt joint grooves, thereby releasing the limiting effect of the mounting ring; at this time, the locking nuts are rotated in turn, so that the locking nuts are tightened against the corresponding locking bolts, that is, in this state, the mounting ring can be forced to slide from the second point to the first point. The effect achieved is that the mounting ring is relatively fixed in the initial state of the second point under the clamping and limiting of the butt joint block and the butt joint groove, avoiding the possibility of over-tightening of the locking nut at one time, and forcibly requiring the operator to rotate all the locking nuts in turn, and forcing all the locking nuts to abut against the mounting ring, so that the mounting ring can be unlocked and the locking nut can be continuously rotated, so that the mounting ring slides to the first point. Avoiding the possibility that the operator tightens a certain locking nut at one time, thereby improving the connection effect between the mounting seat and the first flange plate;

[0030] 3. By the setting of the plugging assembly, when it is necessary to separate the mounting seat and the bearing seat (i.e. when the automobile hub needs to be detached), the butt joint groove is plugged by the plugging assembly, and then all the locking nuts are detached in turn. The mounting ring is reset to the second point under the action of the first spring, and at this time the mounting seat can be pulled out because the butt joint groove is plugged, so that the mounting seat and the bearing seat are separated, improving the operation convenience of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic diagram of embodiment 1;

[0032] Figure 2 is the partial sectional view of embodiment 1 embodying the rolling body;

[0033] Figure 3 is the structure schematic diagram of embodiment 2 embodying the mounting seat;

[0034] Figure 4is a partial sectional view of the locking nut according to embodiment 2;

[0035] Figure 5 is a partial sectional view of the mounting groove according to embodiment 3;

[0036] Figure 6 is a partial sectional view of the abutting block according to embodiment 4;

[0037] Figure 7 is Figure 6 is an enlarged view of A in FIG. 4;

[0038] Figure 8 is a partial sectional view of the abutting block embedded in the abutting groove according to embodiment 4;

[0039] Figure 9 is a structural schematic view of the sliding groove according to embodiment 4;

[0040] Figure 10 is a partial sectional view of the limiting column according to embodiment 4.

[0041] BRIEF DESCRIPTION OF THE DRAWINGS 1, inner ring; 2, outer ring; 21, rolling element; 22, retainer; 23, second flange plate; 231, third connecting hole; 3, bearing seat; 31, positioning cylinder; 311, abutting groove; 312, guide surface; 313, sliding groove; 32, first flange plate; 321, first connecting hole; 33, locking bolt; 4, rim; 41, spoke; 5, mounting seat; 51, central hole; 511, sunken groove; 52, second connecting hole; 53, locking nut; 54, mounting groove; 541, first point; 542, second point; 55, connecting sleeve; 551, moving part; 552, rotating part; 553, third point; 554, fourth point; 56, veneer block; 57, communicating groove; 6, mounting ring; 61, through hole; 62, first spring; 63, abutting block; 631, second spring; 632, unlocking groove; 64, unlocking rod; 65, embedding groove; 651, unlocking hole; 7, plugging assembly; 71, connecting ring; 72, plugging strip; 73, third spring; 74, limiting column. DETAILED DESCRIPTION

[0042] The following Figures 1-10 The present application is further described in detail.

[0043] Embodiment 1: The present application discloses a hub bearing.

[0044] Referring to Figure 1 , Figure 2The hub bearing comprises an inner ring 1, an outer ring 2 and rolling elements 21, the inner ring 1 is connected with a bearing seat 3, the inner ring 1 is sleeved on the outer peripheral wall of the bearing seat 3 and is fixedly connected with the bearing seat 3, the outer ring 2 is sleeved on the outer peripheral side of the inner ring 1, and the rolling elements 21 are embedded between the inner ring 1 and the outer ring 2; the rolling elements 21 are balls, a plurality of balls are arranged around the central axis of the inner ring 1; a retainer 22 is installed between the inner ring 1 and the outer ring 2, the retainer 22 is used for limiting the relative positions of the plurality of balls, so that the plurality of balls are uniformly spaced apart around the central axis of the inner ring 1.

[0045] One end of the bearing seat 3 is integrally formed with a positioning cylinder 31, the positioning cylinder 31 is coaxially arranged between the bearing seat 3, and the positioning cylinder 31 is used for being inserted and positioned with the automobile hub; a first flange plate 32 for connecting the automobile hub is fixedly installed on the outer peripheral wall of the bearing seat 3, the first flange plate 32 is provided with a plurality of first connecting holes 321, and the plurality of first connecting holes 321 are arranged at intervals around the central axis of the positioning cylinder 31; a second flange plate 23 for connecting the automobile steering knuckle is fixedly installed on the outer peripheral wall of the outer ring 2, the second flange plate 23 is provided with a plurality of third connecting holes 231, and the plurality of third connecting holes 231 are arranged at intervals around the central axis of the positioning cylinder 31; in the embodiment, the number of the third connecting holes 231 is less than the number of the first connecting holes 321, and all the third connecting holes 231 and all the first connecting holes 321 are arranged in a staggered manner around the central axis of the positioning cylinder 31.

[0046] The implementation principle of the embodiment 1 of the application is that, when the hub bearing is installed with the automobile hub, the positioning cylinder 31 of the bearing seat 3 is inserted and positioned with the automobile hub, so that the automobile hub and the hub bearing are coaxially arranged quickly. Then, the first flange plate 32 is connected to the automobile hub in the form of bolt connection through the plurality of first connecting holes 321 of the first flange plate 32, so that the automobile hub is quickly installed on the bearing seat 3 of the inner ring 1, and the convenience of disassembly and assembly between the hub bearing and the automobile hub is greatly improved.

[0047] Embodiment 2: The embodiment of the application discloses an automobile hub for connecting the hub bearing of the embodiment 1.

[0048] Reference Figure 3 , Figure 4 An automobile hub comprises a rim 4, spokes 41 and a mounting seat 5, wherein the outer ends of the spokes 41 are fixedly connected with the inner peripheral wall of the rim 4, the inner ends of the spokes 41 are fixedly connected with the outer peripheral wall of the mounting seat 5, the number of the spokes 41 is plural, and the plurality of spokes 41 are arranged at intervals around the central axis of the mounting seat 5.

[0049] The mounting seat 5 is provided with a central hole 51 for inserting and positioning the positioning cylinder 31, and the end face of the mounting seat 5 is provided with a second connecting hole 52, a plurality of second connecting holes 52 are arranged at intervals around the central axis of the central hole 51, and the plurality of second connecting holes 52 are arranged correspondingly to the plurality of first connecting holes 321; the first flange plate 32 is connected with a locking bolt 33, the locking bolt 33 is sequentially arranged through the first connecting hole 321 and the second connecting hole 52, and the second connecting hole 52 is provided with a locking nut 53, the locking nut 53 is sleeved on the locking bolt 33 and is threadedly connected with the locking bolt 33.

[0050] The central hole 51 of the mounting seat 5 is provided with a facing block 56, the facing block 56 is used for plugging the end of the central hole 51 away from the positioning cylinder 31, the facing block 56 and the mounting seat 5 can be connected by press-in interference fit, or can be connected by screw connection, and the surface of the facing block 56 is used for installing the automobile brand LOGO.

[0051] The implementation principle of the embodiment 2 of the application is that when the hub bearing is installed with the automobile hub, the positioning cylinder 31 of the bearing seat 3 is inserted into the central hole 51 of the mounting seat 5, so as to realize the quick centering between the rim 4 and the bearing seat 3, and the rim 4 and the bearing seat 3 are kept coaxial; then the locking nuts 53 are sequentially arranged in the plurality of second connecting holes 52, the locking nuts 53 are locked with the locking bolts 33, so as to fix the mounting seat 5 on the bearing seat 3, and the disassembly and assembly convenience of the overall structure is improved.

[0052] Embodiment 3: The embodiment of the application discloses an automobile hub.

[0053] The automobile hub disclosed by the embodiment of the application is different from the embodiment 2 in that:

[0054] Referring to Figure 5 In the embodiment, the mounting seat 5 is provided with a mounting groove 54, the mounting groove 54 is annular around the central axis of the central hole 51, the mounting groove 54 is located on the side of the second connecting hole 52 close to the first flange plate 32, and each second connecting hole 52 is communicated with the mounting groove 54; the mounting ring 6 is slidably arranged in the mounting groove 54, the mounting ring 6 is annular around the central axis of the central hole 51, the mounting ring 6 is provided with a through hole 61 for the locking bolt 33 to pass through, and the through hole 61 is provided with a plurality of locking bolts 33 and is arranged correspondingly to the plurality of locking bolts 33.

[0055] For ease of description, the side of the mounting groove 54 furthest from the second connecting hole 52 is defined as the first point 541, and the side of the mounting groove 54 closest to the second connecting hole 52 is defined as the second point 542. A plurality of first springs 62 are installed between the mounting ring 6 and the inner wall of the mounting groove 54. The plurality of first springs 62 are arranged at intervals around the central axis of the central hole 51. One end of the first spring 62 is fixedly connected to the mounting ring 6, and the other end is fixedly connected to the inner wall of the mounting groove 54. Under normal conditions, the first spring 62 forces the mounting ring 6 to slide to the second point 542. When the locking nut 53 tightens the locking bolt 33, the locking nut 53 forces the mounting ring 6 to slide to the first point 541, and the first spring 62 deforms and retains elasticity.

[0056] The implementation principle of Embodiment 3 of this application is as follows: Under normal conditions, the mounting ring 6 slides down to the second point 542 of the mounting groove 54 under the action of the first spring 62. The locking nut 53 is rotated to lock the locking bolt 33. During the axial sliding process of the locking nut 53 along the locking bolt 33, it can push the mounting ring 6 and force the mounting ring 6 to slide from the second point 542 of the mounting groove 54 to the first point 541 of the mounting groove 54, thereby squeezing the first spring 62 and forcing the first spring 62 to contract and generate elastic force. This elastic force reacts to the locking nut 53, thereby keeping the locking nut 53 pressed against it, reducing the possibility of the locking nut 53 rotating freely and falling off, and improving the stability of the overall structure.

[0057] Example 4: This application discloses an automobile wheel hub.

[0058] The difference between the automobile wheel hub disclosed in this application and embodiment 3 is that:

[0059] Reference Figure 6 , Figure 7 In this embodiment, the outer peripheral wall of the mounting ring 6 is provided with multiple fitting grooves 65, which are correspondingly arranged with multiple locking nuts 53. A mating block 63 is slidably installed in each fitting groove 65. The mating block 63 is slidably installed on the mounting ring 6 through the fitting groove 65 so as to be able to slide radially along the mounting ring 6. The outer peripheral wall of the positioning cylinder 31 is provided with multiple mating grooves 311, which are correspondingly arranged with multiple mating blocks 63.

[0060] The inner circumferential wall of the mounting groove 54 is provided with a plurality of communication grooves 57 corresponding to the plurality of abutting blocks 63, each of the communication grooves 57 is communicated with the central hole 51 of the mounting seat 5, and the communication grooves 57 are used for allowing the corresponding abutting blocks 63 to pass through so that the corresponding abutting blocks 63 can penetrate into the central hole 51; the second spring 631 is arranged between each abutting block 63 and the mounting ring 6, one end of the first spring 62 is fixedly connected to the abutting block 63, and the other end is fixedly connected to the inner wall of the embedded groove 65; when the mounting ring 6 is located at the second point position 542, the second spring 631 forces the abutting block 63 to partially extend into the central hole 51 and be inserted into the corresponding abutting groove 311 of the positioning cylinder 31.

[0061] Referring to Figure 7 , Figure 8 , each of the abutting blocks 63 is provided with an unlocking part, and when the locking nut 53 abuts against the mounting ring 6, the unlocking part forces the corresponding abutting block 63 to be separated from the corresponding abutting groove 311. In the embodiment, the unlocking part is an unlocking rod 64, the inner wall of the embedded groove 65 close to the second connecting hole 52 is provided with an unlocking hole 651, the unlocking rod 64 is slidingly arranged in the unlocking hole 651, the side wall of the abutting block 63 is provided with an unlocking groove 632, and one end of the unlocking rod 64 extends into the unlocking groove 632; in the embodiment, the unlocking rod 64 is gradually inclined to the side close to the central hole 51 from the end away from the second connecting hole 52 to the end close to the second connecting hole 52.

[0062] Under normal circumstances, the second spring 631 forces one end of the unlocking rod 64 to extend to the side of the mounting ring 6 close to the locking nut 53 through the unlocking groove 632 of the abutting block 63, so as to be pushed by the locking nut 53. When the mounting ring 6 is located at the second point position 542 and drives the locking nut 53 to abut against the mounting ring 6, the locking nut 53 pushes the unlocking groove 632 of the abutting block 63 through the unlocking rod 64, so as to force the abutting block 63 to be separated from the corresponding abutting groove 311.

[0063] Referring to Figure 7 , Figure 9 , in the embodiment, the end of the positioning cylinder 31 away from the bearing seat 3 has a guide surface 312, when the positioning cylinder 31 is inserted into the central hole 51, the positioning cylinder 31 forces the abutting block 63 to move out of the central hole 51 through the guide surface 312; the inner circumferential wall of the end of the central hole 51 away from the bearing seat 3 is provided with a sunken groove 511, the sunken groove 511 is embedded with a connecting sleeve 55, and the central axis of the connecting sleeve 55 is arranged to coincide with the central axis of the central hole 51; the connecting sleeve 55 and the sunken groove 511 can be connected by press-in interference fit or in the form of threads.

[0064] Referring to Figure 7 , Figure 8 , Figure 9In the embodiment, the facing block 56 is installed in the connecting sleeve 55, and the facing block 56 is provided with a blocking assembly 7 for blocking the butt joint groove 311; the outer peripheral wall of the positioning cylinder 31 is provided with a plurality of sliding grooves 313, and the plurality of sliding grooves 313 are correspondingly arranged with the plurality of butt joint grooves 311; one end of each sliding groove 313 is communicated with the corresponding butt joint groove 311, and the other end penetrates the end face of the positioning cylinder 31 close to the facing block 56, and the sliding groove 313 and the corresponding butt joint groove 311 are combined to form a “T shape”.

[0065] The blocking assembly 7 includes a connecting ring 71, a blocking strip 72, a third spring 73, and a limiting piece. The connecting ring 71 is rotationally installed on the surface of the facing block 56 close to the center hole 51 and coaxially arranged between the connecting ring 71 and the center hole 51.

[0066] Referring to Figure 7 , Figure 8 , Figure 10 The limiting piece is arranged between the facing block 56 and the connecting sleeve 55 to force the blocking strip 72 to cover the butt joint groove 311. The inner peripheral wall of the connecting sleeve 55 is provided with a movable groove. In the embodiment, the limiting piece is a limiting column 74, one end of which is fixedly connected to the outer peripheral wall of the facing block 56, and the other end is slidably inserted into the movable groove. The movable groove includes a moving part 551 and a rotating part 552. For the convenience of description, the end of the moving part 551 close to the positioning cylinder 31 is defined as a third point 553, and the end of the moving part 551 away from the positioning cylinder 31 is defined as a fourth point 554. Under normal circumstances, the third spring 73 forces the limiting column 74 of the facing block 56 to slide to the fourth point 554, so that the blocking strip 72 is separated from the butt joint groove 311.

[0067] The rotating part 552 is annular around the central axis of the connecting sleeve 55 and is communicated with the third point 553. When the limiting column 74 is driven to slide to the third point 553 and turn into the rotating part 552, the end of the blocking strip 72 away from the connecting ring 71 covers the butt joint groove 311.

[0068] The implementation principle of the embodiment 4 of the application is that when the bearing seat 3 is connected with the mounting seat 5, the positioning cylinder 31 is inserted into the center hole 51 of the mounting seat 5, the positioning cylinder 31 is pushed away from the butt joint block 63 through the guide surface 312, when the positioning cylinder 31 is completely inserted into the center hole 51, the butt joint block 63 is embedded in the butt joint groove 311 of the positioning cylinder 31 under the action of the second spring 631, and the preliminary fixing between the bearing seat 3 and the mounting seat 5 is realized. Then the locking nuts 53 are sequentially arranged in the second connecting holes 52, the locking nuts 53 are rotated, and the plurality of locking nuts 53 are forced to abut against the mounting ring 6; in the process that the locking nuts 53 abut against the mounting ring 6, the locking nuts 53 push the corresponding butt joint blocks 63 through the unlocking rods 64, and the butt joint blocks 63 are forced to be separated from the corresponding butt joint grooves 311, after all the locking nuts 53 abut against the mounting ring 6, the mounting ring 6 and the positioning cylinder 31 are separated from each other. At this time, the plurality of locking nuts 53 are sequentially rotated, so that the locking nuts 53 are tightened on the corresponding locking bolts 33, that is, in this state, the mounting ring 6 is forced to slide from the second point position 542 to the first point position 541.

[0069] The design can achieve the following effects: the mounting ring 6 is located at the second point position 542 in the initial state and is relatively fixed under the clamping limiting of the butt joint block 63 and the butt joint groove 311, the possibility that the locking nuts 53 are once rotated too tightly is avoided, the operation personnel are forced to sequentially rotate all the locking nuts 53, and after all the locking nuts 53 abut against the mounting ring 6, the mounting ring 6 can be unlocked and can continue to be rotated, so that the mounting ring 6 slides to the first point position 541. The possibility that the operation personnel directly rotate one of the locking nuts 53 too tightly at one time when locking the locking nuts 53 is avoided, and the connection effect between the mounting seat 5 and the first flange plate 32 is improved.

[0070] In addition, the butt joint block 63 and the butt joint groove 311 are arranged, and an “insurance” is added to the mounting seat 5 and the bearing seat 3, that is, when the locking nuts 53 are accidentally separated from the locking bolts 33, the mounting ring 6 can be reset to the second point position 542 under the action of the first spring 62, at this time, the butt joint block 63 can be embedded in the butt joint groove 311 under the action of the second spring 631, the possibility that the mounting seat 5 and the bearing seat 3 are directly separated due to the separation of the locking nuts 53 is reduced, and the safety of the overall structure is improved.

[0071] The above is the preferred embodiment of the application, which does not limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An automobile wheel hub for connecting a wheel hub bearing, the wheel hub bearing comprising an inner ring (1), an outer ring (2) and rolling elements (21), the inner ring (1) being provided with a bearing seat (3), the inner ring (1) being sleeved on the outer peripheral wall of the bearing seat (3), the outer ring (2) being sleeved on the outer peripheral side of the inner ring (1), and the rolling elements (21) being embedded between the inner ring (1) and the outer ring (2); one end of the bearing seat (3) is provided with a positioning cylinder (31), the positioning cylinder (31) being used for plug-in positioning with the automobile wheel hub; the outer peripheral wall of the bearing seat (3) is provided with a first flange plate (32) for connecting the automobile wheel hub, the first flange plate (32) being provided with a plurality of first connecting holes (321), and the plurality of first connecting holes (321) are arranged at intervals around the central axis of the positioning cylinder (31). characterized in that The application relates to a wheel hub assembly, which comprises a wheel rim (4), spokes (41) and a mounting base (5), wherein the outer ends of the spokes (41) are connected with the wheel rim (4), the inner ends of the spokes (41) are connected with the mounting base (5), the mounting base (5) is provided with a central hole (51) for inserting and positioning a positioning cylinder (31), the mounting base (5) is provided with a plurality of second connecting holes (52) which are arranged at intervals around the central axis of the central hole (51), the plurality of second connecting holes (52) are arranged correspondingly with a plurality of first connecting holes (321), the first flange plate (32) is connected with a locking bolt (33), the locking bolt (33) is sequentially arranged in the first connecting hole (321) and the second connecting hole (52), the second connecting hole (52) is provided with a locking nut (53), the locking nut (53) is sleeved on the locking bolt (33) and is threadedly connected with the locking bolt (33), the mounting base (5) is provided with a mounting groove (54) which is annularly arranged around the central axis of the central hole (51), the mounting groove (54) is located on the side of the second connecting hole (52) close to the first flange plate (32), and each second connecting hole (52) is communicated with the mounting groove (54), the mounting groove (54) is slidably provided with a mounting ring (6), the mounting ring (6) is provided with a penetrating hole (61) for penetrating the locking bolt (33), the mounting groove (54) is provided with a first point (541) and a second point (542), the second point (542) is located on the side of the first point (541) close to the second connecting hole (52), a first spring (62) is arranged between the mounting ring (6) and the mounting base (5), under normal conditions, the first spring (62) forces the mounting ring (6) to slide to the second point (542), when the locking nut (53) is screwed on the locking bolt (33), the mounting ring (6) slides to the first point (541), the first spring (62) is deformed and has elastic force, the mounting ring (6) is provided with a plurality of abutting blocks (63), the plurality of abutting blocks (63) are arranged correspondingly with the plurality of locking nuts (53), each abutting block (63) is slidably arranged on the mounting ring (6) so as to slide along the radial direction of the mounting ring (6), the outer circumferential wall of the positioning cylinder (31) is provided with a plurality of abutting grooves (311), the plurality of abutting grooves (311) are arranged correspondingly with the plurality of abutting blocks (63), a second spring (631) is arranged between each abutting block (63) and the mounting ring (6), when the mounting ring (6) is located at the second point (542), the second spring (631) forces the abutting block (63) to partially extend into the central hole (51) and is inserted into the corresponding abutting groove (311) of the positioning cylinder (31), and each abutting block (63) is provided with an unlocking piece, when the locking nut (53) abuts against the mounting ring (6), the unlocking piece forces the corresponding abutting block (63) to separate from the corresponding abutting groove (311).

2. The automotive wheel hub of claim 1, wherein: The unlocking piece comprises an unlocking rod (64) which is slidingly installed in the mounting ring (6), the butt joint block (63) is provided with an unlocking slot (632) through which the unlocking rod (64) passes, normally, one end of the unlocking rod (64) is forced to extend to the side of the mounting ring (6) close to the locking nut (53) by the second spring (631) through the unlocking slot (632) of the butt joint block (63); when the mounting ring (6) is located at the second point (542) and the locking nut (53) is driven to abut against the mounting ring (6), the locking nut (53) pushes the unlocking slot (632) of the butt joint block (63) through the unlocking rod (64) to force the butt joint block (63) to be separated from the corresponding butt joint slot (311).

3. The automotive wheel hub of claim 1, wherein: The positioning cylinder (31) is provided with a guide surface (312) at the end away from the bearing seat (3), when the positioning cylinder (31) is inserted into the center hole (51), the positioning cylinder (31) forces the butt joint block (63) to move out of the center hole (51) through the guide surface (312).

4. The automotive wheel hub of claim 1, wherein: The center hole (51) is provided with a connecting sleeve (55) at the end away from the bearing seat (3), the connecting sleeve (55) is provided with a veneer block (56), and the veneer block (56) is provided with a blocking assembly (7) for blocking the butt joint slot (311).

5. The automotive wheel hub of claim 4, wherein: The outer peripheral wall of the positioning cylinder (31) is provided with a plurality of sliding slots (313), and the plurality of sliding slots (313) are correspondingly arranged with the plurality of butt joint slots (311), one end of each of the sliding slots (313) is communicated with the corresponding butt joint slot (311), and the other end penetrates the end face of the positioning cylinder (31) close to the veneer block (56); the blocking assembly (7) comprises a connecting ring (71), a blocking strip (72), a third spring (73) and a limiting piece, the connecting ring (71) is rotatably installed on the surface of the veneer block (56) close to the positioning cylinder (31), the blocking strip (72) is provided with a plurality of blocking strips (72) and is correspondingly arranged with the plurality of sliding slots (313), one end of each of the blocking strips (72) is connected to the connecting ring (71), and the other end is provided in the corresponding sliding slot (313) and covers the corresponding butt joint slot (311) of the sliding slot (313); the third spring (73) is arranged between the connecting sleeve (55) and the connecting ring (71), normally, the third spring (73) forces the blocking strip (72) to be separated from the butt joint slot (311); the limiting piece is arranged between the veneer block (56) and the connecting sleeve (55) to force the blocking strip (72) to cover the butt joint slot (311).

6. The automotive wheel hub of claim 5, wherein: The inner peripheral wall of the connecting sleeve (55) is provided with a movable slot, the limiting member comprises a limiting column (74), one end of the limiting column (74) is connected to the outer peripheral wall of the facing block (56), and the other end is slidably inserted into the movable slot; the movable slot comprises a moving part (551) and a rotating part (552), the two ends of the moving part (551) are arranged along the central axis of the connecting sleeve (55), the two ends of the moving part (551) form a third point (553) and a fourth point (554) respectively, and the third point (553) is located on the side of the fourth point (554) close to the positioning cylinder (31); under normal circumstances, the third spring (73) forces the limiting column (74) of the facing block (56) to slide to the fourth point (554), and the blocking strip (72) is separated from the butt joint groove (311); the rotating part (552) is annular around the central axis of the connecting sleeve (55) and communicates with the third point (553), when the limiting column (74) is slid to the third point (553) and turned into the rotating part (552), the end of the blocking strip (72) away from the connecting ring (71) covers the butt joint groove (311).

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