CN216579967U

CN216579967U - Hub unit

Info

Publication number: CN216579967U
Application number: CN202122920295.2U
Authority: CN
Inventors: 徐信正; 陆志良; 郑国鹏
Original assignee: Zhejiang Yuteng Machinery Technology Co ltd
Current assignee: Zhejiang Yuteng Machinery Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-24
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a hub unit, which comprises an inner ring part, an outer ring part and two bearings, wherein the outer wall of the outer ring part is detachably connected with a first flange plate, the inner wall of the outer ring part is provided with a first bulge ring, the two bearings are respectively positioned at two sides of the first bulge ring, the outer ring of each bearing is propped against the first bulge ring, two ends of the outer ring part are also in threaded connection with a first annular block which is propped against the outer ring of each bearing, one end of the inner ring part is fixedly provided with a second flange plate, the side surface of the second flange plate, which is close to the corresponding bearing, is fixedly provided with a second annular block, the second annular block is propped against the inner ring of the bearing, the other end of the inner ring part is in threaded connection with a third annular block which is propped against the inner ring of the other bearing, the position of the inner ring part, which corresponds to the first bulge ring, is detachably connected with a second bulge ring, each second bulge ring block is composed of a plurality of fan-shaped blocks, and can be connected to the outer ring part after each fan-shaped block is disassembled, and the inner wall of the outer ring part.

Description

Hub unit

Technical Field

The utility model relates to hub assembly, in particular to a hub unit.

Background

The hub unit is used for connecting a suspension and a wheel, and generally comprises an inner ring part, an outer ring part and a bearing, wherein the bearing is used for realizing relative rotation between the inner ring part and the outer ring part, and simultaneously, flanges for installation are respectively and fixedly arranged on the inner ring part and the outer ring part. It can be seen that for the hub unit, the stable fit between the bearing and the outer ring and the inner ring is a necessary condition for ensuring the normal work of the hub unit, and the assembly of the bearing is inconvenient in the conventional hub unit.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a hub unit having the advantage of easy assembly.

The technical purpose of the utility model is realized by the following technical scheme:

a hub unit comprises an inner ring part, an outer ring part and two bearings, wherein the inner ring part is used for connecting a hub and a shaft, the outer ring part is used for connecting a suspension, the outer wall of the outer ring part is detachably connected with a first flange, the inner wall of the outer ring part is provided with a first protruding ring, the two bearings are respectively positioned on two sides of the first protruding ring, the outer ring of each bearing supports the first protruding ring, two ends of the outer ring part are further in threaded connection with a first annular block which supports the outer ring of each bearing, one end of the inner ring part is fixedly provided with a second flange, the side, close to the bearing, of the second flange is fixedly provided with a second annular block which supports the inner ring of the bearing close to the second annular block, the other end of the inner ring part is in threaded connection with a third annular block which supports the inner ring of the other bearing, the position, corresponding to the first protruding ring, of the inner ring part is detachably connected with a second protruding ring, the second protruding ring is composed of a plurality of sector blocks, and a through hole I is arranged in the middle position of each sector block, the first bolt penetrates through the first through hole, a first threaded hole is formed in the position, corresponding to the first through hole, of the outer wall of the inner ring part, a second through hole, entering the outer ring part, of the first bolt is formed in the position, corresponding to the first through hole, of the outer wall of the outer ring part, a second threaded hole is formed in the position, corresponding to the second threaded hole, of the outer ring part, a fifth through hole is formed in the position, corresponding to the second threaded hole, of the outer ring part, a second bolt matched with the second threaded hole penetrates through the fifth through hole, the second bolt is also used for fixing the first flange plate, when the first flange plate and the outer ring part are fixedly connected, the first flange plate covers the fifth through hole and the second through hole.

By adopting the technical scheme, before the two bearings and the outer ring part are installed, the three sector ring blocks are connected to the outer ring part through the second bolt; mounting two bearings and two connecting rings I; then, sleeving the inner ring part into the two bearings, and installing a connecting ring III; then unscrewing the two bolts II, keeping the two bolts II matched with the sector ring block, and moving the sector ring block to enable the sector ring block to be close to the inner ring part; then, the first bolt penetrates through the second through hole and enters the outer ring part, and then penetrates through the first through hole and is primarily matched with the first threaded hole; screwing out two bolts II, and screwing the bolts I to complete the connection of the sector ring block and the inner ring part; and finally, mounting the flange plate I to the outer ring part through a bolt II, and blocking all the through holes V and the through holes II.

Preferably, the cross section of the flange plate I is T-shaped, a plurality of through holes II for the bolts II to pass through are formed in the horizontal portion on two sides of the vertical portion, and threaded holes III matched with the bolts II are formed in the outer ring portion corresponding to the through holes II.

By adopting the technical scheme, the second bolt penetrates through the fourth through hole of the first flange plate and is in threaded connection with the third threaded hole of the outer ring part, and the first flange plate is installed on the outer ring part.

Preferably, the through hole five is between two circles of the threaded holes three.

By adopting the technical scheme, the threaded hole is used for mounting the first flange plate, and the fifth through hole can be blocked after the first flange plate is mounted on the outer ring part.

Preferably, when the flange plate I and the outer ring are partially disassembled and the second bolts fixedly connect the sector ring blocks to the outer ring, all the sector ring blocks and the second bolts are positioned on the outer side of the bearing inner ring in the side view direction.

By adopting the technical scheme, the sector ring block and the bolt II can not influence the nesting of the inner ring part into the two bearings.

Preferably, the first bolts fixedly connect the first sector ring blocks to the inner ring portion, and at the moment, all the sector ring blocks form the second annular block, and a space is reserved between the second annular block and the first annular block.

By adopting the technical scheme, a distance is reserved between the second annular block and the first annular block, so that the maintenance operation is convenient.

Preferably, the space between the second annular block and the first annular block is filled with grease.

By adopting the technical scheme, the friction is reduced.

Preferably, the first through hole is step-shaped.

By adopting the technical scheme, after the first bolt is screwed, the nut of the first bolt can be positioned in the first through hole.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a front view of the embodiment;

FIG. 3 is a cross-sectional view of the embodiment taken along A-A;

FIG. 4 is an exploded view of the embodiment with the segment and outer ring partially mated;

FIG. 5 is an elevation view of an embodiment of a segment and outer ring portion in mating relation;

FIG. 6 is a cross-sectional view of the embodiment taken along B-B.

Reference numerals: 1. an inner race portion; 11. a second flange plate; 12. a second annular block; 13. a first threaded hole; 2. an outer ring portion; 21. a third threaded hole; 22. a first bulge ring; 23. a fifth through hole; 24. a second through hole; 3. a bearing; 4. a first flange plate; 41. a fourth through hole; 5. a second bolt; 6. a first annular block; 7. a third annular block; 8. a sector ring block; 81. a second threaded hole; 82. a first through hole; 9. a first bolt; 10. and (4) spacing.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model.

As shown in fig. 1 to 3, a hub unit includes an inner ring portion 1 connecting a hub and a shaft, an outer ring portion 2 connecting a suspension, and two bearings 3. The outer wall of outer lane part 2 can be dismantled and be connected with ring flange 4, can dismantle the mode of connection: the cross section of the flange plate I4 is T-shaped, a plurality of first hole positions are arranged on the vertical portion and used for being connected with the suspension, a plurality of fourth through holes 41 are arranged in the positions of the horizontal portion on two sides of the vertical portion, a threaded hole III 21 is arranged in the position, corresponding to each fourth through hole 41, of the outer ring portion 2, a bolt II 5 penetrates through the corresponding fourth through hole 41, and the bolt II 5 is matched with the threaded hole III 21.

The inner wall of the outer ring part 2 is provided with a raised ring one 22. The two bearings 3 are respectively positioned at two sides of the first raised ring 22, the outer ring of each bearing 3 is propped against the first raised ring 22, and two ends of the outer ring part 2 are also in threaded connection with first annular blocks 6 which are propped against the outer ring of each bearing 3. Firstly, the two bearings 3 are plugged into the outer ring part 2 from two sides, then the two annular blocks 6 are in threaded connection, the outer rings of the two bearings 3 are tightly abutted, and the matching of the bearings 3 and the outer ring part 2 is completed.

One end of the inner ring part 1 is fixedly provided with a second flange plate 11, the second flange plate 11 is provided with a plurality of second hole sites, and the second hole sites are used for mounting the wheel hub. And a ring of second annular block 12 is fixedly arranged on the side surface of the second flange plate 11 close to the bearing 3, the second annular block 12 is used for abutting against the inner ring of the bearing 3 close to the second annular block, and the other end of the inner ring part 1 is in threaded connection with a third annular block 7 abutting against the inner ring of the other bearing 3. Namely, the inner ring part 1 is sleeved into the two bearings 3 until the second annular block 12 abuts against the inner ring of the bearing 3 close to the second annular block, and then the third annular block 7 is in threaded connection.

Thus, it was found that, for each bearing 3, only the outer side of the inner race thereof was pressed against, and it was not stable. Therefore, in combination with the detachable connection of the flange plate one 4, the following design is made: the inner ring part 1 is detachably connected with a second raised ring corresponding to the first raised ring 22, the second raised ring is used for tightly abutting against the inner sides of the inner rings of the two bearings 3, and the second raised ring is composed of a plurality of sector ring blocks 8. For convenience of the following description, in the present application, the number of the sector ring blocks 8 is set to three. Initially, the flange one 4 and the outer ring portion 2 are disassembled, so that the threaded holes three 21 and the bolts two 5 are left free.

As shown in fig. 4 to 6, before the two bearings 3 and the outer ring portion 2 are mounted, the three sector ring pieces 8 are connected to the outer ring portion 2 by the second bolts 5. Threaded holes II 81 are formed in the two sides of the outer wall of each sector ring block 8, through holes five 23 are formed in the positions, corresponding to the threaded holes II 81, of the outer ring part 2, the positions of the through holes five 23 are well controlled, and the through holes five 23 are located between the two circles of threaded holes three 21. The second bolt 5 firstly penetrates through the fifth through hole 23 and then is matched with the second threaded hole 81, and after the second bolt 5 is screwed down, the fan-shaped ring block 8 and the first raised ring 22 are abutted. After the connection of the three sector ring blocks 8 and the outer ring part 2 is completed, two bearings 3 are installed, and at the moment, all the sector ring blocks 8 and the bolts 5 are positioned on the outer sides of the inner rings of the bearings 3 in the side view direction. Thus, the sector ring block 8 and the bolt II 5 cannot influence the nesting of the inner ring part 1 into the two bearings 3.

Then, three sector ring pieces 8 on the outer ring portion 2 need to be connected to the inner ring portion 1. Therefore, a first through hole 82 is formed in the middle of each sector ring block 8, a first bolt 9 penetrates through the first through hole 82, a first threaded hole 13 is formed in the position, corresponding to the first through hole 82, of the outer wall of the inner ring portion 1, and a second through hole 24 for the first bolt 9 to penetrate through is formed in the position, corresponding to the first through hole 82, of the outer wall of the outer ring portion 2. Firstly, unscrewing two bolts II 5 and keeping the two bolts II to be matched with the sector ring block 8, then moving the sector ring block 8 to enable the sector ring block to be close to the inner ring part 1, enabling the bolts I9 to penetrate through the through holes II 24 to enter the outer ring part 2, penetrate through the through holes I82 to be primarily matched with the threaded holes I13, then screwing out the two bolts II 5, and screwing down the bolts I9 to complete connection of the sector ring block 8 and the inner ring part 1. In addition, the first through hole 82 is stepped, so that the nut of the first bolt 9 can be positioned in the first through hole 82 after the first bolt 9 is screwed down.

After the three sector ring blocks 8 are fixedly connected to the inner ring part 1 through the first bolts 9 and the first threaded holes 13, the second annular block 12 is formed, and a distance 10 is reserved between the second annular block 12 and the first annular block 6. Grease can be injected into the space 10 between the second annular block 12 and the first annular block 6, so that friction is reduced. Finally, the flange plate I4 is mounted on the outer ring part 2 through the bolt II 5, and all the through holes five 23 and the through holes II 24 are blocked.

Claims

1. The utility model provides a hub unit, is including inner circle part (1) of connecting wheel hub and axle, outer lane part (2) of connecting the suspension, two bearings (3), its characterized in that, the outer wall of outer lane part (2) can be dismantled and be connected with ring flange (4), the inner wall of outer lane part (2) is equipped with protruding ring (22), two bearings (3) are in the both sides of protruding ring (22) respectively, and the outer lane of bearing (3) supports protruding ring (22), and the both ends of outer lane part (2) still threaded connection have the annular piece (6) of supporting the outer lane of bearing (3), the one end of inner circle part (1) has set firmly ring flange two (11), and the side that ring flange two (11) are close to bearing (3) has set firmly round annular piece two (12), annular piece two (12) are used for supporting the inner circle rather than the bearing (3) that is close to, the other end threaded connection of inner circle part (1) has the annular piece three (7) of supporting the inner circle of another bearing (3) ) The inner ring part (1) is detachably connected with a first raised ring (22) in a position corresponding to the first raised ring, the second raised ring consists of a plurality of first fan ring blocks (8), a first through hole (82) is formed in the middle position of each first fan ring block (8), a first bolt (9) penetrates through the first through hole (82), a first threaded hole (13) is formed in the position, corresponding to each first through hole (82), of the outer wall of the inner ring part (1), a second through hole (24) for allowing the first bolt (9) to enter the outer ring part (2) is formed in the position, corresponding to each first through hole (82), of the outer wall of the outer ring part (2), second threaded holes (81) are formed in the positions, corresponding to each second threaded hole (81), of the outer ring part (2), a fifth through hole (23) is formed in the position, a second bolt (5) matched with the second threaded hole (81) penetrates through the fifth through hole (23), and the second bolt (5) is also used for fixing a first flange plate (4), and when the flange plate I (4) is fixedly connected with the outer ring part (2), the flange plate I (4) covers all the through holes I (23) and all the through holes II (24).

2. A hub unit according to claim 1, wherein the first flange (4) has a T-shaped cross section, the horizontal portion is provided with a plurality of through holes (41) for passing the second bolts (5) at positions on both sides of the vertical portion, and the outer ring portion (2) is provided with a threaded hole (21) for fitting the second bolt (5) at a position corresponding to each through hole (41).

3. A hub unit according to claim 2, wherein the through hole five (23) is between two turns of the threaded hole three (21).

4. A hub unit according to claim 1, wherein the flange plate (4) and the outer ring part (2) are removed, and the bolts (5) fixedly connect the sector ring blocks (8) to the outer ring part (2), and in a side view, all the sector ring blocks (8) and the bolts (5) are located outside the inner ring of the bearing (3).

5. A hub unit according to claim 1, characterized in that the bolts one (9) fixedly attach the sector ring blocks (8) to the inner ring portion (1), in which case all sector ring blocks (8) constitute said second annular block (12), and a distance (10) is left between the second annular block (12) and the first annular block (6).

6. A hub unit according to claim 3, wherein the gap (10) between the second annular block (12) and the first annular block (6) is filled with grease.

7. A hub unit according to claim 1, characterized in that the first through hole (82) is stepped.