CN218750101U

CN218750101U - Hub oil seal seat ring assembly and engineering machinery

Info

Publication number: CN218750101U
Application number: CN202223281141.4U
Authority: CN
Inventors: 邹国军; 武帅; 夏彪
Original assignee: Sany Electric Vehicle Technology Co Ltd
Current assignee: Sany Electric Vehicle Technology Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-03-28
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to an engineering machine tool technical field, concretely relates to hub oil blanket seat ring assembly and engineering machine tool. The wheel hub oil blanket seat circle assembly includes: the seat ring is suitable for being fixedly arranged on the axle housing and is suitable for being matched with the inner side of the hub oil seal; and the sealing cover is fixedly arranged on the base ring, is arranged on the outer side of the hub oil seal and is suitable for being in sealing fit with the hub assembly to form sealing, and forms a sealing cavity together with the hub oil seal. The utility model discloses set up the sealed cowling on the present circle, the sealed cowling forms sealed chamber with the sealed cooperation of wheel hub assembly, makes wheel hub oil blanket and external isolated, and the sealed cowling can be dustproof under dry condition, can also be waterproof when passing through the deep puddle, effectively prevents muddy water and wheel hub oil blanket contact through simple structure, greatly reduced the inefficacy risk of wheel hub oil blanket, effectively solved the poor problem that becomes invalid easily of sealed measure waterproof nature of wheel hub assembly among the prior art.

Description

Hub oil seal seat ring assembly and engineering machinery

Technical Field

The utility model relates to an engineering machine tool technical field, concretely relates to hub oil blanket seat ring assembly and engineering machine tool.

Background

The engineering vehicle, especially the urban muck truck, needs to be cleaned by a deep water pit before entering an urban road from a construction environment so as to reduce silt carried on tires of the engineering vehicle, and the sealing and waterproof measures at the hub assembly are very important in order to prevent the water inlet failure inside the hub assembly when the engineering vehicle passes through the deep water pit.

At present, the sealing measure of the existing wheel hub assembly is to install an oil seal seat ring, the seat ring is arranged on an axle shell, an oil seal is arranged between the seat ring and a wheel hub for sealing, so that the gear oil inside the wheel hub is prevented from leaking, when an engineering vehicle passes through a deep water pit, silt in water enters the position of an oil seal lip to cause abrasion, and then the oil seal fails to seal so that the water inside the wheel hub enters water, and therefore the sealing measure of the existing wheel hub assembly also has the problem that the water resistance is poor and the failure is easy.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the poor easy inefficacy of sealing measure waterproof nature of wheel hub assembly among the prior art to a wheel hub oil blanket seat ring assembly and engineering machine tool are provided.

In order to solve the problem, the utility model provides a wheel hub oil blanket seat circle assembly, include: the seat ring is suitable for being fixedly arranged on the axle housing and is suitable for being matched with the inner side of the hub oil seal; and the sealing cover is fixedly arranged on the base ring, arranged on the outer side of the hub oil seal and suitable for being in sealing fit with the hub assembly to form sealing, and forms a sealing cavity together with the hub oil seal.

Optionally, a sealing lip is arranged at the position where the sealing cover is matched with the hub assembly, and the sealing lip is tightly attached to the hub assembly.

Optionally, the sealing lip is a rubber lip.

Optionally, the ABS sensor further comprises a fixing bushing, the fixing bushing is fixedly arranged on the sealing cover, the fixing bushing is provided with a mounting hole communicated with the sealing cavity, and the mounting hole is suitable for mounting the ABS sensor.

Optionally, the fixed bushing is welded to the seal housing.

Optionally, a fixing groove is formed in the end face, away from the hub assembly, of the seat ring, and the inner ring of the sealing cover is inserted into the fixing groove and fixedly matched with the fixing groove.

Optionally, the hub assembly comprises a hub, a hub oil seal and an ABS gear ring, the ABS gear ring and the hub oil seal are fixedly arranged on the hub, the sealing cover is in sealing fit with the ABS gear ring, and the seat ring is in sealing fit with the hub oil seal.

Optionally, a sealing element is further arranged between the seat ring and the axle housing.

Optionally, a sealing groove is formed in the inner wall of the seat ring, and the sealing element is arranged in the sealing groove.

The utility model also provides an engineering machine tool, it includes: the hub oil seal seat ring assembly.

The utility model has the advantages of it is following:

1. set up the sealed cowling on the present ring, the sealed cowling forms sealed chamber with the sealed cooperation of wheel hub assembly, makes wheel hub oil blanket and external isolated, and the sealed cowling can be dustproof under dry condition, can also be waterproof when passing through the deep puddle, effectively prevents muddy water and wheel hub oil blanket contact through simple structure, greatly reduced the inefficacy risk of wheel hub oil blanket, effectively solved the poor easy problem that loses efficacy of sealing measure waterproof nature of wheel hub assembly among the prior art.

2. The end face, far away from the wheel hub assembly, of the seat ring is provided with the fixing groove, the inner ring of the sealing cover is inserted into the fixing groove and fixedly matched with the fixing groove, the matching mode is simple and reliable, required parts are effectively reduced and connected, and the installation process is simplified.

3. The rubber lip is fixed on the sealing cover after the vulcanization process, the rubber lip after the vulcanization process is higher in strength, better in elasticity, more wear-resistant and remarkably improved in corrosion resistance, and the reliability of the rubber lip is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 shows a schematic cross-sectional view of a hub oil seal race assembly according to an embodiment of the present invention;

FIG. 2 shows a schematic cross-sectional view of a seal housing of the hub oil seal race assembly of FIG. 1;

FIG. 3 shows an assembled schematic view of the hub oil seal race assembly of FIG. 1;

FIG. 4 is an enlarged partial schematic view of the assembly of the hub oil seal race assembly of FIG. 3.

Description of reference numerals:

10. a seat ring; 11. fixing grooves; 12. a seal member; 13. a sealing groove; 20. a sealing cover; 21. sealing the cavity; 22. sealing the lip; 30. fixing the bushing; 41. a hub oil seal; 42. a hub; 43. an ABS gear ring; 44. an ABS sensor; 50. and (4) an axle housing.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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 according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 4, the hub oil seal race assembly of the present embodiment includes: a seat ring 10 and a seal cover 20, wherein the seat ring 10 is suitable for being fixedly arranged on an axle housing 50, and the seat ring 10 is suitable for being matched with the inner side of a hub oil seal 41; a seal cover 20 is fixedly disposed on the seat ring 10, the seal cover 20 is disposed outside the hubcap 41 and is adapted to sealingly engage the hub assembly to form a seal, and together with the hubcap 41, form a seal cavity 21.

Use the wheel hub oil blanket seat circle assembly of this embodiment, set up sealed cowling 20 on seat circle 10, sealed cowling 20 and the sealed cooperation of wheel hub assembly and formation seal chamber 21, make wheel hub oil blanket 41 isolated with external, sealed cowling 20 can be dustproof under dry condition, can also be waterproof when passing through the deep water pit, effectively prevent muddy water and the contact of wheel hub oil blanket 41 through simple structure, greatly reduced wheel hub oil blanket 41's inefficacy risk, the poor easy problem that loses efficacy of wheel hub assembly's sealed measure waterproof nature among the prior art has effectively been solved.

Specifically, when the whole vehicle passes through a deep water pit, the axle wheel edge assembly is immersed in water, mud and water on one side of the hub assembly possibly enter the lip part of the hub oil seal 41 together with silt, and then abnormal abrasion is caused to the lip of the hub oil seal 41 during vehicle running, so that sealing failure is caused, water enters the inside of the hub assembly, and a fault occurs, so that the waterproof sealing of the hub oil seal 41 is very important.

In this embodiment, the position that sealed cowling 20 and wheel hub assembly complex is equipped with sealing lip 22, and sealing lip 22 and wheel hub assembly closely laminate, and sealing lip 22 can prevent dust, prevent muddy water, effectively prevents during muddy water enters sealed chamber 21 from sealing lip 22 outside, when wheel hub oil blanket 41 became invalid, can also prevent that the gear oil in the wheel hub from throwing into in the stopper.

Specifically, the specific type and specification of the hub oil seal 41 are not limited, and may be a double-lip oil seal or a single-lip oil seal, and the specification of the hub oil seal 41 corresponds and matches according to the specification of the hub, and the fixed connection mode between the sealing lip 22 and the sealing cover 20 is not limited, and may be bonded by a special adhesive, or an embedded pile is disposed at a position on the sealing cover 20 matched with the sealing lip 22, and the sealing lip 22 is hot-pressed on the embedded pile and is fixedly connected. It is understood that, as an alternative embodiment, an adhesive may be applied to the embedded pile on the sealing cap 20, and then the sealing lip 22 is fixed by hot pressing the embedded pile, and the sealing lip 22 may also be fixed to the connection surface of the sealing cap 20 by several fastening members, so that the sealing property can be ensured and the sealing can be firmly fixed.

In this embodiment, the sealing lip 22 is a rubber lip, and the rubber lip cooperates with the hub assembly to form the sealing lip, so that the rubber lip can reduce the rigid contact in the sealing cooperation with the hub assembly, and is more reliable and durable.

Specifically, the rubber lip is fixed on the sealing cover 20 after the vulcanization process, and the rubber lip after the vulcanization process is higher in strength, better in elasticity, more wear-resistant and remarkably improved in corrosion resistance, so that the reliability of the rubber lip is effectively improved.

In this embodiment, the ABS sensor further includes a fixing bushing 30, the fixing bushing 30 is fixedly disposed on the sealing cover 20, the fixing bushing 30 has a mounting hole communicated with the sealing cavity 21, the mounting hole is suitable for mounting the ABS sensor 44, the fixing bushing 30 is directly fixedly disposed on the sealing cover 20, and when the ABS sensor is mounted, an additional mounting component is not required to be directly fixed in the mounting hole, so that the number of components is reduced, and the assembly efficiency is improved.

Specifically, ABS sensor 44 is the sensor that uses on the motor vehicle to monitor the speed of a motor vehicle by the inductance, and ABS sensor 44 is fixed by the ABS support at present mostly, and the ABS support passes through bolted connection in central siphon department or oil blanket seat circle department, need additionally increase spare parts such as ABS support, ABS support and ABS leg joint bolt when the fixed ABS sensor 44 of installation, has both increased bridge assembly cost, has influenced assembly efficiency again simultaneously.

In the embodiment, the fixing bush 30 is welded on the sealing cover 20, and the fixing mode is simple and reliable, and the processing and the manufacturing are convenient. It is understood that, as an alternative embodiment, the fixing bushing 30 may be fixed to the sealing cover 20 by a fastening member, or a threaded hole may be provided in the sealing cover 20, and a thread may be provided on an outer wall of the fixing bushing 30 to screw the fixing bushing 30 into the threaded hole for fixing.

Specifically, when the sealing cover 20 is manufactured, a through hole is formed in a position corresponding to the installation of the ABS sensor 44, and then the fixing bushing 30 is correspondingly welded to the through hole, so that the manufacturing process is simple, and the installation steps of the ABS sensor 44 are effectively saved.

Specifically, the structure and size of the fixing bush 30 are not limited, and the ABS sensor 44 may be stably and reliably mounted according to the size of the ABS sensor 44, where the ABS sensor 44 may be fixed in the fixing bush 30 by a fixing bolt, or an elastic friction member may be disposed between the ABS sensor 44 and the mounting hole of the fixing bush 30 to limit the axial movement of the ABS sensor 44.

In this embodiment, the end face of the seat ring 10 away from the hub assembly is provided with the fixing groove 11, the inner ring of the seal cover 20 is inserted into the fixing groove 11 and is fixedly matched with the fixing groove 11, the matching mode is simple and reliable, parts required for connection are effectively reduced, and the installation process is simplified.

Specifically, the inner ring of the seal cover 20 is interference-fitted with the inner wall of the fixing groove 11, and the seal cover 20 is pressed into the fixing groove 11 by an external force. It is understood that, as an alternative embodiment, the sealing cover 20 may be fixed in the fixing groove 11 by a fastening member, or may be fixed to the sealing cover 20 by welding.

In this embodiment, the wheel hub assembly includes a wheel hub 42, a wheel hub oil seal 41 and an ABS gear ring 43, the wheel hub oil seal 41 and the ABS gear ring 43 are fixedly disposed on the wheel hub, the seal cover 20 is in sealing fit with the ABS gear ring 43, and the wheel hub oil seal 41 is in sealing fit with the seat ring 10. Because the ABS sensor 44 needs to cooperate with the ABS ring gear 43, in order to make the ABS sensor work normally, the sealing lip 22 of the sealing cover 20 needs to cooperate with the ABS ring gear 43, and a part of the ABS ring gear 43 is located in the sealing cavity 21, which is convenient to cooperate with the ABS sensor 44.

Specifically, the ABS ring gear 43 is press-fitted on the hub 42, the outer ring of the ABS ring gear 43 is interference-fitted with the hub 42, and the ABS sensor 44 is clearance-fitted with the ABS ring gear 43 after being fitted in the fixing bush 30. The hub oil seal 41 is directly press-fitted on the hub 42, and the outer ring of the hub oil seal 41 is in interference fit with the hub 42.

In this embodiment, a seal 12 is also provided between the seat ring 10 and the axle housing to improve the sealing between the seat ring 10 and the axle housing.

Specifically, interference fit between seat circle 10 and the axle housing, seat circle 10 directly pressure equipment on the axle housing, and the wheel hub assembly still includes the wheel hub bearing, and during the installation of wheel hub assembly, the wheel hub bearing in the wheel hub assembly uses the terminal surface of seat circle 10 as the locating surface assembly on the axle housing.

In this embodiment, a sealing groove 13 is formed on the inner wall of the seat ring 10, and the sealing element 12 is arranged in the sealing groove 13, so that the structure is simple and the processing is convenient.

Preferably, the seal 12 is a seal ring, such as an O-ring seal.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. set up sealed cowling 20 on seat circle 10, sealed cowling 20 and the sealed cooperation of wheel hub assembly and formation sealed chamber 21 make wheel hub oil blanket 41 isolated with external, and sealed cowling 20 can be dustproof under dry condition, can also be waterproof when passing through the deep water hole, effectively prevents muddy water and the contact of wheel hub oil blanket 41 through simple structure, greatly reduced wheel hub oil blanket 41's inefficacy risk.

2. Sealing cover 20 is equipped with sealing lip 22 with wheel hub assembly complex position, and sealing lip 22 closely laminates with the wheel hub assembly, and sealing lip 22 can prevent dust, muddy water, effectively prevents during muddy water enters sealed chamber 21 from sealing lip 22 outside, when wheel hub oil blanket 41 became invalid, can also prevent that the gear oil in the wheel hub from getting rid of in the stopper simultaneously.

3. The fixing bush 30 is directly fixed on the sealing cover 20, and an extra mounting part is not needed to be directly fixed in the mounting hole when the ABS sensor is mounted, so that the number of parts is reduced, and the assembly efficiency is improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A hub oil seal race assembly, comprising:

the seat ring (10) is suitable for being fixedly arranged on an axle housing (50), and the seat ring (10) is suitable for being matched with the inner side of the hub oil seal (41);

and the sealing cover (20) is fixedly arranged on the seat ring (10), the sealing cover (20) is arranged on the outer side of the hub oil seal (41) and is suitable for being in sealing fit with a hub assembly to form sealing, and forms a sealing cavity (21) together with the hub oil seal (41).

2. The wheel hub oil seal seat ring assembly as defined in claim 1, wherein a sealing lip (22) is arranged at a position where the sealing cover (20) is matched with the wheel hub assembly, and the sealing lip (22) is tightly attached to the wheel hub assembly.

3. The wheel hub oil seal race assembly of claim 2, characterized in that the seal lip (22) is a rubber lip.

4. The hubcap seal race assembly of claim 1 further comprising a retaining bushing (30), said retaining bushing (30) being fixedly disposed on said seal housing (20), said retaining bushing (30) having a mounting hole in communication with said seal cavity (21), said mounting hole being adapted to mount an ABS sensor (44).

5. A hubcap seal race assembly as claimed in claim 4 wherein said stationary bushing (30) is welded to said seal housing (20).

6. A wheel hub oil seal seat ring assembly according to any one of claims 1 to 5, characterized in that the end face of the seat ring (10) far away from the wheel hub assembly is provided with a fixing groove (11), and the inner ring of the seal cover (20) is inserted into the fixing groove (11) and is fixedly matched with the fixing groove (11).

7. The wheel hub oil seal ring assembly according to any one of claims 1 to 5, characterized in that the wheel hub assembly comprises a wheel hub (42), a wheel hub oil seal (41) and an ABS gear ring (43), the ABS gear ring (43) and the wheel hub oil seal (41) are fixedly arranged on the wheel hub, the sealing cover (20) is in sealing fit with the ABS gear ring (43), and the seat ring (10) is in sealing fit with the wheel hub oil seal (41).

8. A hubcap seal race assembly as claimed in any one of claims 1 to 5 wherein a seal (12) is also provided between the race (10) and the axle housing.

9. A wheel hub oil seal race assembly according to claim 8, characterized in that the inner wall of the race (10) is provided with a sealing groove (13), the sealing element (12) being disposed in the sealing groove (13).

10. A work machine, comprising: a wheel oil seal race assembly as claimed in any one of claims 1 to 9.