CN218702522U

CN218702522U - Hub unit for increasing torque load

Info

Publication number: CN218702522U
Application number: CN202223151183.6U
Authority: CN
Inventors: 钱新杰; 孙力行; 邹凌飞
Original assignee: HAINING NICE-FLOURISH AUTO PARTS CO LTD
Current assignee: HAINING NICE-FLOURISH AUTO PARTS CO LTD
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-24
Anticipated expiration: 2032-11-24

Abstract

The utility model provides an increase moment of torsion load's wheel hub unit, including dabber and bearing assembly, the dabber includes integrative column and the reel that links firmly, bearing assembly cup joints the periphery at the column and forms to rotate and connect, set up at least one screw hole and at least one on the outer lane disk body of reel and install the hole additional, from interior to exterior cup joints brake disc and wheel hub in proper order on the port of reel, the brake disc corresponds the screw hole and sets up through-hole one, wheel hub corresponds through-hole one and sets up through-hole two, the screw hole, through-hole one and two cross-under bolt assembly of through-hole form fixedly, the brake disc corresponds to install the hole additional and sets up through-hole three, install the cross-under enhancement round pin in hole and the through-hole three additional, the enhancement round pin forms clearance fit with through-hole three additional. The utility model discloses an add the interference mounting structure of reinforcing pin, be connected with wheel hub and brake disc when the loading, make pinhole fit clearance be less than bolt hole fit clearance, ensure the hole contactless of bolt and wheel hub and brake disc under the big moment of torsion circumstances.

Description

Hub unit for increasing torque load

Technical Field

The utility model belongs to the technical field of machinery, a auto-parts, especially a wheel hub unit of increase moment of torsion load is related to.

Background

The automobile hub unit is used for bearing and providing accurate guide for rotation of a hub, bears axial load and radial load, and is one of very critical parts in an automobile. The service life of the bearing is direct data for measuring the product quality, and the service life of the bearing is improved at present.

In the assembly of the hub unit, the more the fitting parts are, the greater the influence on the precision of the finished product is. The number of assembling parts is reduced, the precision of matching parts is improved, and the fitting rate and the service life of the hub unit bearing are obviously improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided one kind through increasing round pin axle interference fit structure, improved the cooperation precision, promoted the wheel hub unit of the increase moment of torsion load of moment of torsion intensity.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an increase moment of torsion load's wheel hub unit, includes dabber and bearing assembly, the dabber includes integrative column and the reel that links firmly, bearing assembly cup joints the periphery of column forms to rotate and connects, set up at least one screw hole and at least one on the outer lane disk body of reel and install the hole additional, from interior to exterior cup joints brake disc and wheel hub in proper order on the port of reel, the brake disc corresponds the screw hole is seted up through-hole one, wheel hub corresponds through-hole one is seted up through-hole two, the screw hole through-hole one with through-hole two cross-under bolt components form fixedly, the brake disc corresponds install the hole additional and set up through-hole three, install the hole additional with cross-under reinforcing pin in the through-hole three, reinforcing pin with install the hole additional and form interference fit, reinforcing pin with through-hole three forms clearance fit.

In foretell increase torque load's wheel hub unit, the through-hole three is the reducing hole, the reducing hole is including the straight cylinder hole that is located the middle section, the one end of straight cylinder hole expands little horn mouth outwards, little horn mouth with install the hole additional and link up the intercommunication, the other end of straight cylinder hole expands big horn mouth outwards.

In the above hub unit for increasing torque load, the reinforcing pin extends from the small bell mouth of the reducing hole into the straight cylindrical hole and forms a space with the large bell mouth.

In the hub unit for increasing torque load, the bolt assembly includes a bolt column and a gasket, the bolt column sequentially penetrates through the second through hole and the first through hole and forms a threaded fit with the threaded hole, and the gasket is pressed between the head of the bolt column and the hub.

In foretell increase torque load's wheel hub unit, bearing assembly includes outer lane and inner circle, the inner circle is overlapped admittedly on the jack-post outer wall, the outer lane cup joints the inner circle with the jack-post periphery, the outer lane with the inner circle form annular logical chamber between the jack-post, place the holder in the annular logical chamber, assemble a plurality of balls on the holder, the ball is rolling contact the outer lane the inner circle with the jack-post.

In the hub unit for increasing the torque load, the annular through cavity faces the annular opening at the tail end of the spindle post to plug the sealing assembly, and the annular through cavity faces the annular opening of the spindle disk to plug the sealing ring.

In the above-described hub unit with increased torque load, the seal assembly includes a seal member, and a magnetic ring is pressed on the outer side of the seal member.

In the hub unit for increasing the torque load, the periphery of the outer ring is fixedly provided with the flange plate, the flange plate is provided with the assembling hole, and the assembling hole is internally connected with the mounting bolt in a penetrating way.

Compared with the prior art, this increase moment of torsion load's wheel hub unit has following beneficial effect:

1. the interference mounting structure with the reinforcing pins is additionally arranged, the interference mounting structure is connected with the hub and the brake disc during loading, and the precision of the reinforcing pins is higher than that of the bolts, so that the fit clearance of the pin holes is smaller than that of the bolt holes, and the bolts are ensured not to be in contact with the holes of the hub and the brake disc under the condition of large torque.

2. The inner ring adopts a thin-wall design, the groove center distance is increased, and the groove diameter is increased, so that the load of the hub unit is increased, and the service life is prolonged.

Drawings

Fig. 1 is a sectional structural view of the present torque-load-increasing hub unit.

In the figure, 1, a shaft column; 2. a reel; 3. an outer ring; 4. an inner ring; 5. a holder; 6. a ball bearing; 7. a seal member; 8. a magnetic ring; 9. a seal ring; 10. a brake disc; 11. a hub; 12. a bolt column; 13. a gasket; 14. and a reinforcing pin.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, this increase moment of torsion load's wheel hub unit, including dabber and bearing assembly, the dabber includes integrative axostylus axostyle 1 and the reel 2 that links firmly, bearing assembly cup joints and forms the rotation at the periphery of axostylus axostyle 1 and connects, set up at least one screw hole and at least one on 3 disk bodies in the outer lane of reel 2 and install the hole additional, from interior to exterior cup joints brake disc 10 and wheel hub 11 in proper order on the port of reel 2, brake disc 10 corresponds the screw hole and sets up through-hole one, wheel hub 11 corresponds through-hole one and sets up through-hole two, the screw hole, through-hole one and through-hole two cross-under bolt assembly form fixedly, brake disc 10 corresponds to install the hole additional and sets up through-hole three, install hole and through-hole three interior cross-under reinforcing pin 14 additional, reinforcing pin 14 forms interference fit with installing the hole additional, reinforcing pin 14 forms clearance fit with through-hole three.

The bearing assembly comprises an outer ring 3 and an inner ring 4, wherein the inner ring 4 is fixedly sleeved on the outer wall of the shaft column 1, the outer ring 3 is sleeved on the periphery of the inner ring 4 and the periphery of the shaft column 1, an annular through cavity is formed between the outer ring 3 and the inner ring 4 as well as between the outer ring 3 and the shaft column 1, a retainer 5 is placed in the annular through cavity, a plurality of balls 6 are assembled on the retainer 5, and the balls 6 are in rolling contact with the outer ring 3, the inner ring 4 and the shaft column 1. When the mandrel rotates, the inner ring 4 is driven to synchronously rotate, and the outer ring 3 is fixedly assembled and the mandrel freely rotates through rolling and sliding connection of the plurality of balls 6.

The annular through cavity is towards the sealing component on the annular mouth of the tail end of the shaft column 1, and the annular through cavity is towards the sealing ring 9 on the annular mouth of the shaft disc 2. Because of the roll of ball 6 needs lubricated, so the annular leads to the intracavity and is full of lubricating oil, and need seal the both ends that the annular leads to the chamber, then prevents lubricating oil and leaks, then prevents that the foreign matter from getting into, is the lubricated environment of ensureing ball 6 to ensure that the dabber is smooth rotatory. The annular through cavity adopts a processing mode of local surface quenching, so that the hardness of the annular through cavity is improved, and the wear resistance of the annular through cavity is improved.

The sealing assembly comprises a sealing member 7, and a magnetic ring 8 is pressed on the outer side of the sealing member 7.

The periphery of outer lane 3 sets firmly the ring flange, opens the pilot hole on the ring flange, and the mounting bolt passes through in the pilot hole.

The third through hole is a reducing hole, the reducing hole comprises a straight cylindrical hole located in the middle section, one end of the straight cylindrical hole outwards expands a small horn mouth, the small horn mouth is communicated with the additional installation hole, and the other end of the straight cylindrical hole outwards expands a large horn mouth. The reinforcing pin 14 extends into the straight cylindrical hole from the small horn mouth of the reducing hole and forms a distance with the large horn mouth.

The number of the additional mounting holes, the number of the through holes III and the number of the reinforcing pins 14 are two, and the two reinforcing pins 14 are connected with the hub 11 and the brake disc 10, so that the bolt columns 12 are not in contact with the holes of the hub 11 and the brake disc 10 under the condition of high torque, and the service life of the hub unit is prolonged.

The bolt assembly comprises a bolt column 12 and a gasket 13, the bolt column 12 penetrates through the second through hole and the first through hole in sequence and is in threaded fit with the threaded hole, and the gasket 13 is arranged between the head of the bolt column 12 and the hub 11 in a pressing mode. The fastening assembly of the mandrel, the brake disc 10 and the hub 11 is realized through the engagement of the bolt columns 12 and the threaded holes, the elastic force is provided through the gaskets 13, the mandrel, the brake disc 10 and the hub 11 are tightly connected, and meanwhile, the firm assembly effect is realized.

1. the interference mounting structure with the reinforcing pin is additionally arranged, the interference mounting structure is connected with the hub and the brake disc during loading, and the precision of the reinforcing pin is higher than that of the bolt, so that the fit clearance of the pin hole is smaller than that of the bolt hole, and the bolt is ensured not to be in contact with the holes of the hub and the brake disc under the condition of high torque.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the spindle post 1 is used more herein; a reel 2; an outer ring 3; an inner ring 4; a holder 5; a ball 6; a seal 7; a magnetic ring 8; a seal ring 9; a brake disc 10; a hub 11; a bolt column 12; a gasket 13; reinforcement pins 14, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides an increase moment of torsion load's wheel hub unit, includes dabber and bearing assembly, its characterized in that, the dabber includes integrative column and the reel that links firmly, bearing assembly cup joints the periphery of column forms to rotate and connects, set up at least one screw hole and at least one on the outer lane disk body of reel and install the hole additional, from interior to exterior cup joints brake disc and wheel hub in proper order on the port of reel, the brake disc corresponds the screw hole sets up through-hole one, wheel hub corresponds through-hole one sets up through-hole two, the screw hole through-hole one with through-hole two cross-under bolt assembly forms fixedly, the brake disc corresponds install the hole additional and set up through-hole three, install the hole additional with through-hole three interior cross-under reinforcing pin, reinforcing pin with install the hole additional and form interference fit, reinforcing pin with through-hole three forms clearance fit.

2. The hub unit for increasing torque load according to claim 1, wherein the third through hole is a reducing hole, the reducing hole comprises a straight cylindrical hole located in the middle section, one end of the straight cylindrical hole is outwards expanded to form a small bell mouth, the small bell mouth is connected and communicated with the additional mounting hole, and the other end of the straight cylindrical hole is outwards expanded to form a large bell mouth.

3. The torque load amplifying hub unit according to claim 2, wherein said reinforcing pin is extended from said small flare of said reduced diameter hole into said straight cylindrical hole and spaced from said large flare.

4. The torque load amplifying hub unit according to claim 1, wherein the bolt assembly includes a bolt stud and a washer, the bolt stud sequentially penetrates through the second through hole and the first through hole and forms a threaded fit with the threaded hole, and the washer is pressed between a head of the bolt stud and the hub.

5. The hub unit for increasing torque load according to claim 1, wherein the bearing assembly includes an outer ring and an inner ring, the inner ring is fixedly sleeved on the outer wall of the axle post, the outer ring is sleeved on the outer periphery of the inner ring and the axle post, an annular through cavity is formed between the outer ring and the inner ring and between the outer ring and the axle post, a retainer is placed in the annular through cavity, a plurality of balls are assembled on the retainer, and the balls are in rolling contact with the outer ring, the inner ring and the axle post.

6. The torque load amplifying hub unit of claim 5, wherein said annular cavity seals off a seal assembly towards an annular mouth at the rear end of said spindle post, and wherein said annular cavity seals off a seal ring towards an annular mouth of said hub.

7. The torque load amplifying hub unit of claim 6, wherein said seal assembly includes a seal member having a magnetic ring pressed against an outer side of said seal member.

8. The hub unit for increasing torque load according to claim 5, wherein a flange is fixedly arranged on the outer circumference of the outer ring, a mounting hole is formed in the flange, and a mounting bolt penetrates through the mounting hole.