CN111688406B - Rear drive axle hub assembly of mechanical transmission mining dump truck and installation method - Google Patents

Rear drive axle hub assembly of mechanical transmission mining dump truck and installation method Download PDF

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Publication number
CN111688406B
CN111688406B CN202010609697.8A CN202010609697A CN111688406B CN 111688406 B CN111688406 B CN 111688406B CN 202010609697 A CN202010609697 A CN 202010609697A CN 111688406 B CN111688406 B CN 111688406B
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Prior art keywords
hub
mounting
bearing
flange
drive axle
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CN111688406A (en
Inventor
李宗�
贾伟
谢和平
戈超
张珂
时维方
宁冉
顾程鹏
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Xuzhou XCMG Mining Machinery Co Ltd
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Xuzhou XCMG Mining Machinery Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B23/00—Attaching rim to wheel body
    • B60B23/06—Attaching rim to wheel body by screws, bolts, pins, or clips
    • B60B23/08—Attaching rim to wheel body by screws, bolts, pins, or clips arranged radially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0078—Hubs characterised by the fixation of bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/121—Power-transmission from drive shaft to hub
    • B60B35/122—Power-transmission from drive shaft to hub using gearings
    • B60B35/125—Power-transmission from drive shaft to hub using gearings of the planetary type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention discloses a rear drive axle hub assembly of a mechanical transmission mining dump truck and an installation method, wherein the hub assembly comprises a hub, an outer side rim, an inner side rim, a protection plate and a speed measuring disc; the hub is arranged on the axle housing supporting shaft; the outer rim is arranged on the plum blossom plate type flange on the outer side of the hub; the inner rim is arranged on the disc type flange on the inner side of the hub; the protection plate is arranged on the outer ring of the hub and used for protecting a tire inflation pipeline; the speed measuring disc is installed on a spigot at the end face of the inner side of the hub and used for detecting the speed and the mileage. The wheel hub assembly quick dismounting device has the advantages that the wheel hub assembly quick dismounting is realized, the failure rate is reduced, the later maintenance is convenient, the detection function is realized, and the practicability of the wheel hub and the safety of the whole vehicle are improved.

Description

Rear drive axle hub assembly of mechanical transmission mining dump truck and installation method
Technical Field
The invention provides a drive axle hub, and particularly relates to a rear drive axle hub technology of a mechanical transmission mining dump truck.
Background
The mechanical transmission mining dump truck is large mine transportation equipment, has high working efficiency and long operation time, and is widely applied to surface mines, water conservancy and earthwork construction engineering. The rear axle hub is used as a core part for bearing and torque power transmission, and the design of the rear axle hub is always difficult, particularly the rear axle hub of a mechanical transmission dumper with the tonnage of one hundred. On one hand, the available design space of the hub is limited, and the structural size of the hub is small; on the other hand, the hub has enough strength to satisfy the safety of the whole mine car.
As shown in FIG. 8, the traditional rear wheel hub of the hundred-ton mechanical transmission mining dump truck is connected with a wheel rim by adopting a wedge ring 100 and a pressing block 200 which are matched with bolts. In the practical use process, as the hub 300 bears high torque and large load, the wedge ring 100 is easily pressed to deform until being damaged, and the damaged wedge ring 100 is pressed in the hub 300 and is difficult to directly disassemble, so that the later maintenance is troublesome; when the whole vehicle turns, the axial load of the rear axle is large due to the influence of centrifugal force, the hub bolt presses the pressing block 200, and the pressing block 200 bears large axial force, so that the whole vehicle is easy to crack.
Aiming at the defects, the novel hub structural design is provided, the maintenance cost is reduced, and the practicability, safety and reliability of the hub are improved.
Disclosure of Invention
According to the defects of the prior art, the invention provides a novel hub assembly of a rear drive axle of a hundred-ton-grade mining dump truck and an installation method thereof. The wheel hub assembly quick dismounting device has the advantages that the wheel hub assembly quick dismounting is realized, the failure rate is reduced, the later maintenance is convenient, the detection function is realized, and the practicability of the wheel hub and the safety of the whole vehicle are improved.
The invention is realized according to the following technical scheme:
a rear drive axle hub assembly of a mechanical transmission mining dump truck comprises a hub, an outer side rim, an inner side rim, a protection plate and a speed measuring disc; the hub is arranged on the axle housing supporting shaft; the outer rim is arranged on the plum blossom plate type flange on the outer side of the hub; the inner rim is arranged on the disc type flange on the inner side of the hub; the protection plate is arranged on the outer ring of the hub and used for protecting a tire inflation pipeline; the speed measuring disc is installed on a spigot at the end face of the inner side of the hub and used for detecting the speed and the mileage.
Furthermore, bolt mounting holes in the plum plate type flange and bolt mounting holes in the disc type flange are arranged in a staggered mode.
Furthermore, ten uniformly-spaced convex plates are arranged on the plum blossom plate type flange, each convex plate is provided with two bolt mounting holes, and the outer rim and the plum blossom plate type flange are fixed through a plurality of D-shaped head bolts and flange nuts; ten groups of mounting holes are uniformly arranged on the disc type flange at intervals, two bolt mounting holes are arranged in each group of mounting holes, and the inner rim and the disc type flange are fixed through a plurality of D-shaped head bolts and flange nuts.
Further, a bearing is arranged between the hub and the axle housing supporting shaft; and the bearing hole in the hub is in interference fit with the bearing.
Furthermore, a bearing hole base outside the hub is provided with a plurality of notches and baffles for quickly disassembling the outside bearing; the bearing hole base of the inner side of the hub is provided with staggered steps for rapidly disassembling the inner side bearing.
Furthermore, a plurality of uniformly distributed and alternated rib plates are arranged on the outer ring of the hub; two ends of the rib plate are connected with the plum plate type flange and the disc type flange; the thickness of the rib plate is gradually increased from the middle to the two ends.
Furthermore, the tire inflation pipeline is led out from a notch on the disc type flange, penetrates into the protection plate along a concave position between rib plates on the outer side of the hub, and is led out from a gap between the plum blossom plate type flanges along the concave position between the rib plates, so that the outer tire and the inner tire valve are fixed on the outer rim.
Furthermore, the speed measuring disc is fixedly installed on the spigot of the inner side face of the hub, the outer ring of the speed measuring disc is provided with a circle of rectangular teeth which are uniformly distributed on the circumference, the rectangular teeth which are uniformly distributed transmit pulse signals emitted by the sensor back, and the running speed and the mileage of the vehicle are calculated through the processor.
Furthermore, a circle of irregular lightening holes are formed in the inner cavity of the hub; the two end profiles of the lightening hole are in smooth transition, and the thinnest wall thickness in the middle is 30 mm.
A method for mounting a rear drive axle hub of a mechanical transmission mining dump truck comprises the following steps:
mounting a bearing and a driving wheel on a wheel hub, mounting a bearing outer ring matched with the wheel hub in a bearing hole of the wheel hub, and mounting a brake driving wheel on the wheel hub;
mounting a speed measuring disc on a hub, mounting the speed measuring disc on a hub spigot, and fixing the speed measuring disc by using bolts;
mounting a hub provided with a bearing outer ring, a driving wheel and a speed measuring disc on an axle housing supporting shaft, and adjusting the gap of a hub bearing;
integrally mounting a wheel hub reduction gear of a drive axle on a wheel hub, and screwing a connecting bolt and a connecting nut of the wheel hub and the wheel hub reduction gear;
mounting an inner side tire on a disc type flange on the inner side of a hub, firstly mounting a D-shaped head bolt into a hub flange hole, then mounting the inner side tire on a disc type flange spigot, mounting a flange nut on the D-shaped head bolt and screwing;
mounting an outer rim on a plum blossom plate type flange on the outer side of a hub, firstly mounting a D-shaped head bolt into a hub flange hole, then mounting an outer tire on a spigot of the plum blossom plate type flange, and mounting and screwing a flange nut on the D-shaped head bolt;
and respectively penetrating the inner side rim inflation pipeline into the protection plate along the concave positions between the rib plates on the outer side of the hub, and then leading out the inner side rim inflation pipeline from the gap between the plum blossom plate type flanges along the concave positions between the rib plates to fix the outer side tire and the inner side tire valve at the outer side rim.
The invention has the beneficial effects that:
the hub breaks the original design, adopts a quincunx and disc type double-flange structure, is convenient to disassemble and assemble, and has high safety; the hub inner cavity is cast empty and lightweight, the hub outer wall is cast with the reinforcing plate, the thickness of the reinforcing plate is gradually parameterized and thickened at the hub stress concentration position, and compared with the original design, the hub inner cavity is saved in material cost and greatly improved in hub strength. Meanwhile, the hub is matched with a speed measuring disc, and the speed and mileage detecting function of the mining dump truck is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a profile view of a hub of the present invention;
FIG. 2 is a cross-sectional view of the hub of the present invention;
FIG. 3 is an outline view of a D-head bolt of the present invention (a is a front view, and b is a plan view);
FIG. 4 is a view of the profile of the tachometer disk of the present invention;
FIG. 5 is an exterior view of a baffle and inflation conduit of the present invention;
FIG. 6 is a first general assembly view of the hub of the present invention;
FIG. 7 is a second general assembly view of the hub of the present invention;
FIG. 8 is an assembly view of an original hub of a hundred-ton-class mechanical transmission dumper;
1-a hub; 2-bearing a; a 3-D lag bolt; 4-flange nut; 5-a stud; 6-a nut; 7-axle housing support shaft; 8-a speed reducer secondary planet carrier; 9-outer rim; 10-bearing b; 11-a speed measuring disc; 12-inboard rim; 13-protective plate; 14-a tire inflation conduit; 15-O-rings; 16-a drive wheel; 17-a gasket; 18-bolts, 19-plum blossom plate type flanges, 20-disc type flanges, 21-rib plates and 22-lightening holes.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 7, a rear drive axle hub assembly of a mechanical transmission mining dump truck comprises a hub 1, an outer side rim 9, an inner side rim 12, a protection plate 13 and a speed measuring disc 11; the hub 1 is mounted on an axle housing supporting shaft 7; the outer rim 9 is arranged on a plum blossom plate type flange 19 on the outer side of the hub 1; the inboard rim 12 is mounted on the inboard disc flange 20 of the hub; the protection plate 13 is arranged on the outer ring of the hub 1 and used for protecting a tire inflation pipeline 14; the speed measuring disc 11 is installed on a spigot of the end face of the inner side of the hub 1 and used for detecting the speed and the mileage.
The bolt mounting holes on the plum blossom plate type flange 19 and the bolt mounting holes on the disc type flange 20 are arranged in a staggered mode, when the inner-side rim tire is mounted, the plum blossom type of the inner-side rim penetrates through the gap between the outer ring plum blossom plate type flange 19, and then the inner ring plum blossom plate type flange is mounted on the disc type flange 20 on the inner ring of the hub 1. The flange is designed like this, so that the stress of the hub 1 is even, the installability of the inner side tire is guaranteed, and when the outer side and the inner side connecting bolt of the hub are inspected in a point mode during the maintenance of the whole vehicle, the outer side of an operator station can be used by a socket wrench, so that the flange is very convenient.
Ten uniformly-spaced convex plates are arranged on the plum blossom plate type flange 19, each convex plate is provided with two bolt mounting holes, and the outer rim 9 and the plum blossom plate type flange 19 are fixed through a plurality of D-shaped head bolts 3 and flange nuts 4; ten groups of mounting holes are uniformly arranged on the disc type flange 20 at intervals, two bolt mounting holes are arranged in each group of mounting holes, and the inner rim 12 and the disc type flange 20 are fixed through a plurality of D-shaped head bolts 3 and flange nuts 4. Mounting an inner rim 12 on a disc type flange 20 on the inner side of a hub, firstly mounting D-shaped head bolts 3 on bolt mounting holes on the inner side of the hub 1, then penetrating the inner rim 12 through gaps of a plum blossom plate flange 19 on the outer side of the hub 1, then mounting the inner rim on flange rabbets on the inner side of the hub 1, mounting flange nuts 4 on the D-shaped head bolts 3, and fastening according to specified torque; the outer rim 9 is mounted to the outer plum blossom plate type flange 19 of the hub 1. Firstly, D-shaped head bolts 3 are installed in bolt installation holes on the outer side of a hub 1, then an outer rim 9 is installed on a spigot of a plum blossom plate type flange 19 on the outer side of the hub 1, nuts 4 are installed on the D-shaped head bolts 3, and fastening is carried out according to specified torque.
It should be noted that, as shown in fig. 3, since the D-head bolt 3 plays a role of preventing rotation, only a moment needs to be applied to the nut during installation and disassembly, which is convenient for disassembly and assembly.
With continued reference to fig. 6, bearings, namely a bearing a2 and a bearing b10, are arranged between the hub 1 and the axle housing supporting shaft 7; the bearing hole in the hub 1 is in interference fit with the bearing, and the bearing is difficult to disassemble or can only be destructively disassembled by means of a special tool after the bearing is assembled according to the traditional bearing hole design.
Further scheme: the dead eye base in the 1 outside of wheel hub is provided with a plurality of breachs and baffle, the dead eye base of 1 inboard of wheel hub is provided with the dislocation step, does and stretches into dislocation step and baffle department with the crow bar and pull down two pairs of bearings fast.
With continued reference to fig. 1, the outer ring of the hub 1 is provided with a plurality of uniformly-distributed and spaced rib plates 21; two ends of the rib plate 21 are connected with the plum blossom plate type flange 19 and the disc type flange 20; the thickness of the rib plate 21 is gradually increased from the middle to the two ends.
Continuing to refer to fig. 5, the tire inflation pipeline 14 is led out from the notch on the disc type flange 20, penetrates into the protection plate 13 along the concave position between the rib plates 21 on the outer side of the hub 1, and is led out from the gap between the plum blossom plate type flanges 19 along the concave position between the rib plates 21, and the outer tire and the inner tire valve are both fixed on the outer rim 9, so that when the inner tire is inflated, a person can stand outside the vehicle to inflate the double tires on the single side, and the tire inflation pipeline is very safe and convenient.
With continued reference to fig. 4, the new hub has functions of detecting vehicle speed and vehicle mileage. The speed measuring disc 11 matched with the hub 1 is fixedly arranged on a spigot on the inner side surface of the hub 1, the outer ring of the speed measuring disc 11 is a circle of rectangular teeth with uniformly distributed circumference, the uniformly distributed rectangular teeth transmit pulse signals emitted by the sensor back, and the running speed and the mileage of the vehicle are calculated through a system. The speed measuring disc is fixedly connected with the hub through bolts.
With continued reference to fig. 2, the hub interior is provided with a ring of irregular lightening holes 22. The size and the profile shape of the lightening hole 22 are calculated and analyzed according to CAE, the profiles at two ends are in smooth transition, the thinnest wall thickness in the middle of the inner cavity is 30mm, on the basis of ensuring that the requirement of triple strength of the whole hub working condition is met, the material cost is greatly saved, and the mass of the hub is reduced.
The installation method of the rear drive axle hub component of the mechanical transmission mining dump truck is as follows:
the method comprises the following steps: as shown in fig. 6, the bearing a2 outer ring and the bearing b10 outer ring are installed in the bearing hole of the hub 1, and it is noted that the two bearing outer rings need to be installed after being frozen. As shown in fig. 7, the O-ring 15 and the drive wheel 16 are attached to the hub 1, fixed by a spacer 17 and a bolt 18, and the bolt 18 is tightened at a predetermined torque.
Step two: as shown in fig. 7, the tachometer disk 11 is mounted on the hub 1, the tachometer disk 11 is mounted on the front edge of the hub 1, and the tachometer disk 11 is fastened by bolts, and as shown in fig. 6, the inner race of the bearing a2 and the inner race of the bearing b10 are mounted on the axle housing support shaft 7.
Step three: mounting the hub 1 with the bearing a2 outer ring, the bearing b10 outer ring, the O-shaped ring 15, the driving wheel 16, the gasket 17 and the bolt 18 which are mounted in the step one on the axle housing supporting shaft 7 with the bearing a2 inner ring and the bearing b10 inner ring which are mounted in the step two, and adjusting the play of the two hub bearings according to the bearing requirements;
step four: mounting a wheel edge speed reducer, mounting a second-stage planet carrier 8 of the speed reducer on the wheel hub 1, and fastening the wheel hub 1 and the stud bolt 5 and the nut 6 of the wheel edge speed reducer according to a specified torque;
step five: the inboard rim 12 is mounted to a disc flange 20 within the hub 1. Firstly, installing D-shaped head bolts 3 on bolt installation holes on the inner side of a hub 1, then enabling an inner rim 12 to penetrate through gaps of a plum blossom plate flange 19 of the hub 1, then installing the rim on flange rabbets on the inner side of the hub 1, installing flange nuts 4 on the D-shaped head bolts 3, and fastening the D-shaped head bolts according to specified torque;
step six: the outboard rim 9 is mounted to the outboard plum blossom plate flange 19. Firstly, installing a D-shaped head bolt 3 on a bolt installation hole on the outer side of a hub 1, then installing an outer rim 9 on a spigot of a plum blossom plate type flange 19 on the outer side of the hub 1, installing a flange nut 4 on the D-shaped head bolt 3, and fastening according to specified torque;
step seven: as shown in FIG. 7, the inner tire inflation pipe 14 is led out along the flange gap at the inner side of the hub 1, the concave position of the rib plate 21 and the middle mounting position of the protection plate 13, and then the pipe protection plate 13 is mounted on the hub 1.
In conclusion, the rear wheel hub of the hundred-ton mechanical mining dump truck is originally designed in such a way that a wheel hub space ring separates double tires, a wedge ring compresses the wheel hub, a pressing block compresses the wedge ring, and a nut compresses the pressing block. The wedge ring of the structure is easy to deform and damage under stress, and the wedge ring cannot be directly disassembled after being pressed to be damaged; the bolt pressing block and the pressing block bear the axial force of the whole vehicle tire and are easy to crack; old-fashioned wheel hub does not possess the intellectual detection system function. The hub breaks the original design, adopts a quincunx and disc type double-flange structure, is convenient to disassemble and assemble, and has high safety; the hub inner cavity is cast empty and lightweight, the hub outer wall is cast with the reinforcing plate, the thickness of the reinforcing plate is gradually parameterized and thickened at the hub stress concentration position, and compared with the original design, the hub inner cavity is saved in material cost and greatly improved in hub strength. Meanwhile, the hub is matched with a speed measuring disc, and the speed and mileage detecting function of the mining dump truck is achieved.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A method for mounting a rear drive axle hub of a mechanical transmission mining dump truck is characterized by comprising the following steps:
mounting a bearing and a driving wheel on a wheel hub, mounting a bearing outer ring matched with the wheel hub in a bearing hole of the wheel hub, and mounting a brake driving wheel on the wheel hub;
mounting a speed measuring disc on a hub, mounting the speed measuring disc on a hub spigot, and fixing the speed measuring disc by using bolts;
mounting a hub provided with a bearing outer ring, a driving wheel and a speed measuring disc on an axle housing supporting shaft, and adjusting the gap of a hub bearing;
integrally mounting a wheel hub reduction gear of a drive axle on a wheel hub, and screwing a connecting bolt and a connecting nut of the wheel hub and the wheel hub reduction gear;
mounting an inner side tire on a disc type flange on the inner side of a hub, firstly mounting a D-shaped head bolt into a hub flange hole, then mounting the inner side tire on a disc type flange spigot, mounting a flange nut on the D-shaped head bolt and screwing;
mounting an outer rim on a plum blossom plate type flange on the outer side of a hub, firstly mounting a D-shaped head bolt into a hub flange hole, then mounting an outer tire on a spigot of the plum blossom plate type flange, and mounting and screwing a flange nut on the D-shaped head bolt;
and respectively penetrating the inner side rim inflation pipeline into the protection plate along the concave positions between the rib plates on the outer side of the hub, and then leading out the inner side rim inflation pipeline from the gap between the plum blossom plate type flanges along the concave positions between the rib plates to fix the outer side tire and the inner side tire valve at the outer side rim.
2. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 1, characterized in that:
and the bolt mounting holes on the plum plate type flange and the bolt mounting holes on the disc type flange are arranged in a staggered manner.
3. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 2, characterized in that:
the plum blossom plate type flange is provided with ten convex plates which are evenly spaced, and each convex plate is provided with two bolt mounting holes;
ten groups of mounting holes are uniformly arranged on the disc type flange at intervals, and two bolt mounting holes are arranged in each group of mounting holes.
4. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 1, characterized in that:
and the bearing hole in the hub is in interference fit with the bearing.
5. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 1, characterized in that:
the bearing hole base outside the hub is provided with a plurality of notches and baffles for quickly disassembling the outer bearing;
the bearing hole base of the inner side of the hub is provided with staggered steps for rapidly disassembling the inner side bearing.
6. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 1, characterized in that:
the outer ring of the hub is provided with a plurality of uniformly distributed and alternated rib plates;
two ends of the rib plate are connected with the plum plate type flange and the disc type flange;
the thickness of the rib plate is gradually increased from the middle to the two ends.
7. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 1, characterized in that:
the speed measuring disc is fixedly installed on the spigot of the inner side face of the hub, the outer ring of the speed measuring disc is provided with a circle of rectangular teeth which are evenly distributed on the circumference, the evenly distributed rectangular teeth transmit pulse signals emitted by the sensor back, and the running speed and the mileage of the vehicle are calculated through the processor.
8. The method for mounting the rear drive axle hub of the mechanical transmission mining dump truck according to claim 1, characterized in that:
a circle of irregular lightening holes are formed in the inner cavity of the hub; the two end profiles of the lightening hole are in smooth transition, and the thinnest wall thickness in the middle is 30 mm.
CN202010609697.8A 2020-06-30 2020-06-30 Rear drive axle hub assembly of mechanical transmission mining dump truck and installation method Active CN111688406B (en)

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FR2287347A1 (en) * 1974-10-08 1976-05-07 Kronprinz Ag VEHICLE WHEEL FOR TWIN TIRES
US3990747A (en) * 1975-09-09 1976-11-09 Long Ralph I Dual wheel assembly
CN203705466U (en) * 2014-02-10 2014-07-09 高英辉 Forward and reverse speed measuring system for track tractors
CN206870770U (en) * 2017-06-27 2018-01-12 徐州徐工矿山机械有限公司 A kind of valve cock of dump truck
CN108638751A (en) * 2018-05-03 2018-10-12 广州电力机车有限公司 A kind of dumper car wheel structure and its assemble method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287347A1 (en) * 1974-10-08 1976-05-07 Kronprinz Ag VEHICLE WHEEL FOR TWIN TIRES
US3990747A (en) * 1975-09-09 1976-11-09 Long Ralph I Dual wheel assembly
CN203705466U (en) * 2014-02-10 2014-07-09 高英辉 Forward and reverse speed measuring system for track tractors
CN206870770U (en) * 2017-06-27 2018-01-12 徐州徐工矿山机械有限公司 A kind of valve cock of dump truck
CN108638751A (en) * 2018-05-03 2018-10-12 广州电力机车有限公司 A kind of dumper car wheel structure and its assemble method

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