CN115306887A - Mining car through type drive axle main reducer without interaxle differential - Google Patents

Mining car through type drive axle main reducer without interaxle differential Download PDF

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Publication number
CN115306887A
CN115306887A CN202110496666.0A CN202110496666A CN115306887A CN 115306887 A CN115306887 A CN 115306887A CN 202110496666 A CN202110496666 A CN 202110496666A CN 115306887 A CN115306887 A CN 115306887A
Authority
CN
China
Prior art keywords
shaft
gear
shaft section
diameter
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110496666.0A
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Chinese (zh)
Inventor
吴会波
李培浩
钱鹏虎
赵双
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Huayong Composite Materials Co Ltd
Original Assignee
Jiangsu Huayong Composite Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Huayong Composite Materials Co Ltd filed Critical Jiangsu Huayong Composite Materials Co Ltd
Priority to CN202110496666.0A priority Critical patent/CN115306887A/en
Publication of CN115306887A publication Critical patent/CN115306887A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/037—Gearboxes for accommodating differential gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness

Abstract

The utility model provides a mine car through drive axle final drive of no differential between axle, includes: a through shaft having a first end and a second end; the input flange is arranged at the first end of the through shaft through a spline sleeve; an oil seal disposed on the input flange; the inner end of the driving bevel gear is assembled on a first diameter shaft section at the first end of the through shaft, and the outer end of the driving bevel gear is assembled on a second diameter shaft section at the first end of the through shaft through a bushing; the driven helical gear is arranged below the driving helical gear and is meshed with the driving helical gear; the driving double-curved-surface gear is connected with the driven bevel gear; a driven hypoid gear in mesh with the driving hypoid gear; an inter-wheel differential connected to the driven hypoid gear; an output flange connected to a second end of the through shaft; and a cylindrical roller bearing mounted to the axle housing adjacent the output flange and supporting the through shaft; wherein the diameter of the first diameter shaft section is greater than the diameter of the second diameter shaft section. The failure rate of the main speed reducer is greatly reduced.

Description

Mining car through type drive axle main reducer without interaxle differential
Technical Field
The invention relates to the field of mining vehicles, in particular to a through type drive axle main reducer of a mining vehicle without an interaxial differential.
Background
At present, through-type drive axle main speed reducers of mining vehicles are all designed and provided with interaxle differentials, and when a certain drive axle loses traction force due to slipping in running, the interaxle differentials which are through the drive axle main speed reducers need to be locked to improve the vehicle trafficability.
Meanwhile, the mining truck has the disadvantages of bad running conditions, muddy, slippery, gravel and ice-snow road surfaces and low speed (less than or equal to 50 km/h).
Disclosure of Invention
Through long-term research and practice, the applicant finds that the failure rate of a through type drive axle main speed reducer and an inter-axle differential thereof of the existing mining vehicle is high, the mining production progress is influenced, and the through type drive axle main speed reducer and the inter-axle differential thereof are not suitable for the running working condition and the environment of the mining vehicle.
Therefore, based on the discovery, the applicant provides a through type drive axle main speed reducer of a mining vehicle with a brand-new structure, which is suitable for the driving working condition of the mining vehicle, and can reduce the occurrence of faults while ensuring the trafficability of the vehicle. Specifically, according to one aspect of the invention, a through drive axle main reducer of a mining vehicle without an interaxle differential is provided, which is characterized by comprising:
a through shaft having a first end and a second end;
the input flange is arranged at the first end of the through shaft through the spline sleeve;
an oil seal disposed on the input flange;
the inner end of the driving bevel gear is assembled on a first diameter shaft section at the first end of the through shaft, the outer end of the driving bevel gear is assembled on a second diameter shaft section at the first end of the through shaft through a bush, and the middle part between the inner end and the outer end is meshed with an external spline arranged on a third diameter shaft section at the first end of the through shaft through an internal spline to transmit power;
the driven helical gear is arranged below the driving helical gear and is meshed with the driving helical gear;
the driving double-curved-surface gear is connected with the driven bevel gear;
a driven hypoid gear in mesh with the driving hypoid gear;
an inter-wheel differential connected to the driven hypoid gear;
an output flange connected to a second end of the through shaft; and
a cylindrical roller bearing mounted to the axle housing adjacent the output flange and supporting the through shaft;
wherein the diameter of the first diameter shaft section is greater than the diameter of the second diameter shaft section.
According to another aspect of the invention, two tapered roller bearings are mounted on the driving bevel gear.
According to yet another aspect of the present invention, the driven hypoid gear is bolted to the inter-wheel differential.
According to another aspect of the present invention, a third diameter shaft section is disposed between the first diameter shaft section and the second diameter shaft section of the through shaft, the diameter of the first diameter shaft section is larger than that of the third diameter shaft section, and a first step structure is formed between the first diameter shaft section and the third diameter shaft section.
According to still another aspect of the present invention, the driving helical gear and the driven helical gear are arranged vertically or obliquely.
According to another aspect of the invention, the running speed of the mining vehicle is less than or equal to 50km/h.
According to yet another aspect of the present invention, the driving bevel gear has a central through hole receiving the first end of the through shaft, the central through hole having a second stepped structure formed therein corresponding to an intersection of the outer end and the intermediate portion, the second stepped structure receiving the bushing and the second diametric shaft segment therein.
The invention can obtain one or more of the following technical effects:
1. the coaxiality of the driving bevel gear and the through shaft is more accurately ensured by double matching and positioning of the inner end and the outer end, and the reliability of oil seal sealing is further improved;
2. the two tapered roller bearings are arranged on the driving bevel gear, so that the supporting rigidity of the driving bevel gear and the through shaft is increased, and the unbalance loading abrasion of the driving bevel gear caused by radial deviation and stress deformation of the through shaft is reduced;
3. the power is divided after passing through the input flange and the through shaft, one part of the power drives the middle axle through the driving bevel gear, the other part of the power drives the rear axle through the output flange, and the power drives the vehicle to run under any running working condition; the transmission mode of the through type drive axle main speed reducer is simplified, the manufacturing cost is reduced, and the failure rate is reduced;
4. the time for a driver of the mining vehicle to reduce the speed or stop the mining vehicle to operate the inter-axle differential lock is reduced, and the mining transportation efficiency is improved;
5. the failure rate of the main speed reducer of the through type drive axle is greatly reduced, and the purchase and maintenance cost is saved;
6. the mining vehicle has the advantages of low running speed (less than or equal to 50 km/h), more muddy and slippery road surfaces, low tire wear degree and good application effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a through drive axle final drive of a mining vehicle without an interaxle differential according to a preferred embodiment of the invention.
Fig. 2 is a schematic diagram of a power transmission route of the final drive of fig. 1.
In the figure, 1, a through shaft 2, an input flange 3, a bushing 4, a driving bevel gear 5, a tapered roller bearing 6, an oil seal 7, a driven bevel gear 8, a driving hyperboloid gear 9, a driven hyperboloid gear 10, an inter-wheel differential 11, an output flange 12 and a cylindrical roller bearing
Detailed Description
The best mode for carrying out the invention will now be described in detail by way of preferred embodiments with reference to the accompanying drawings, wherein the detailed description is intended to illustrate the invention in detail without limiting the invention thereto, and various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.
Example 1
In accordance with a preferred embodiment of the present invention, and with reference to fig. 1-2, there is provided a through drive axle final drive for a mining vehicle without an interaxle differential, comprising:
a through shaft 1 having a first end and a second end;
the input flange 2 is arranged at the first end of the through shaft 1 through a spline sleeve;
an oil seal 6 disposed on the input flange 2;
the inner end of the driving bevel gear 4 is assembled on a first diameter shaft section 101 at the first end of the through shaft 1, the outer end of the driving bevel gear is assembled on a second diameter shaft section 102 at the first end of the through shaft 1 through a bush 3, and the middle part between the inner end and the outer end is meshed with an external spline arranged on a third diameter shaft section 103 at the first end of the through shaft 1 through an internal spline to transmit power;
the driven bevel gear 7 is arranged below the driving bevel gear 4 and is meshed with the driving bevel gear 4;
the driving double-curved-surface gear 8 is connected with the driven bevel gear 7;
a driven hypoid gear 9 engaged with the driving hypoid gear 8;
an inter-wheel differential 10 connected to the driven hypoid gear 9;
an output flange 11 connected to a second end of the through shaft 1; and
a cylindrical roller bearing 12 mounted to the axle housing adjacent the output flange 11 and supporting the through shaft 1;
wherein the diameter of the first diameter shaft section 101 is larger than the diameter of the second diameter shaft section 102.
Advantageously, the power transmission between the input flange 2 and the output flange 11 is direct through the integral through shaft 1. Referring to fig. 2, power is divided after passing through an input flange 2 and a through shaft 1, one part of the power drives a middle axle through a driving bevel gear 4, the other part of the power drives a rear axle through an output flange 11, and the vehicle is driven by the power to run under any running working condition. The transmission mode of the through type drive axle main speed reducer is simplified, the manufacturing cost is reduced, and the failure rate is reduced.
According to a further preferred embodiment of the invention, two tapered roller bearings 5 are mounted on the driving helical gear 4. Advantageously, two tapered roller bearings 5 are mounted on the driving helical gear 4, increasing the support stiffness of the driving helical gear 4 and the through shaft 1, and reducing the unbalance loading wear of the driving helical gear 4 caused by radial deviation and stress deformation of the through shaft 1.
According to a further preferred embodiment of the invention, the driven hypoid gear 9 is bolted to the inter-wheel differential 10.
Advantageously, the inner end of the driving bevel gear 4 is assembled on the shaft section with the larger diameter of the through shaft 1, the outer end of the driving bevel gear is assembled on the shaft section with the smaller diameter of the through shaft 1 through the bushing 3, the inner spline of the middle of the driving bevel gear and the outer spline of the through shaft 1 are meshed with each other to transmit power, and the coaxiality of the driving bevel gear 4 and the through shaft 1 is more accurately ensured through double matching positioning of the inner end and the outer end, so that the sealing reliability of the oil seal 6 is further improved.
Preferably, the input flange 2 is sleeved on one end of the through shaft 1 through a spline, an oil seal 6 is arranged on the input flange 2 for sealing, a driving helical gear 4 is arranged at the rear part, the inner end of the driving helical gear 4 is assembled on a shaft section with a larger diameter of the through shaft 1, the outer end of the driving helical gear is assembled on a shaft section with a smaller diameter of the through shaft 1 through a bush 3, an intermediate internal spline and an external spline on the through shaft 1 are meshed with each other to transmit power, two conical roller bearings 5 are arranged on the driving helical gear 4, a driven helical gear 7 meshed with the driving helical gear 4 is arranged below and assembled on the driving hyperbolic gear 8, the driving hyperbolic gear 8 is meshed with a driven hyperbolic gear 9, and the driven hyperbolic gear 9 is connected to an inter-wheel differential 10 through a bolt; the other end of the through shaft 1 extending is connected with an output flange 11, and a cylindrical roller bearing 12 arranged on an axle housing is arranged close to the output flange 11 to support the through shaft 1.
According to another preferred embodiment of the present invention, referring to fig. 1, a third diameter shaft section 103 is arranged between the first diameter shaft section 101 and the second diameter shaft section 102 of the through shaft 1, the diameter of the first diameter shaft section 101 is larger than that of the third diameter shaft section 103, and a first step structure is formed between the first diameter shaft section 101 and the third diameter shaft section 103.
According to a further preferred embodiment of the present invention, the driving bevel gear 4 and the driven bevel gear 7 are arranged vertically or obliquely.
According to still another preferred embodiment of the present invention, the driving speed of the mining vehicle is less than or equal to 50km/h.
According to a further preferred embodiment of the present invention, referring to fig. 1, said driving bevel gear 4 has a central through hole receiving said first end of said through shaft 1, which central through hole is formed with a second step structure corresponding to the intersection of said outer end and the middle part, in which said bushing 3 and a second diametric shaft section 102 are received.
The invention can obtain one or more of the following technical effects:
1. the coaxiality of the driving bevel gear and the through shaft is more accurately ensured by double matching and positioning of the inner end and the outer end, and the reliability of oil seal sealing is further improved;
2. the two tapered roller bearings are arranged on the driving helical gear, so that the supporting rigidity of the driving helical gear and the through shaft is increased, and the unbalance loading abrasion of the driving helical gear caused by radial deviation and stress deformation of the through shaft is reduced;
3. the power is divided after passing through the input flange and the through shaft, one part of the power drives the middle axle through the driving bevel gear, the other part of the power drives the rear axle through the output flange, and the power drives the vehicle to run under any running working condition; the transmission mode of the through type drive axle main speed reducer is simplified, the manufacturing cost is reduced, and the failure rate is reduced;
4. the time for a driver of the mining vehicle to reduce the speed or stop the mining vehicle to operate the inter-axle differential lock is reduced, and the mining transportation efficiency is improved;
5. the failure rate of the main speed reducer of the through type drive axle is greatly reduced, and the purchase and maintenance cost is saved;
6. the mining vehicle has the advantages of low running speed (less than or equal to 50 km/h), numerous muddy and slippery road surfaces, small tire wear degree and good application effect.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a mining truck through drive axle final drive of no inter-axle differential, its characterized in that includes:
a through shaft having a first end and a second end;
the input flange is arranged at the first end of the through shaft through the spline sleeve;
an oil seal disposed on the input flange;
the inner end of the driving bevel gear is assembled on a first diameter shaft section at the first end of the through shaft, the outer end of the driving bevel gear is assembled on a second diameter shaft section at the first end of the through shaft through a bush, and the middle part between the inner end and the outer end is meshed with an external spline arranged on a third diameter shaft section at the first end of the through shaft through an internal spline to transmit power;
the driven helical gear is arranged below the driving helical gear and is meshed with the driving helical gear;
the driving double-curved-surface gear is connected with the driven bevel gear;
a driven hypoid gear in mesh with the driving hypoid gear;
an inter-wheel differential connected to the driven hypoid gear;
an output flange connected to a second end of the through shaft; and
a cylindrical roller bearing mounted to the axle housing adjacent the output flange and supporting the through shaft;
wherein the diameter of the first diameter shaft section is greater than the diameter of the second diameter shaft section.
2. The through drive axle final drive for a mining vehicle without an interaxle differential of claim 1, wherein the driving helical gear has two tapered roller bearings mounted thereon.
3. The through drive axle final drive for a mining vehicle without an inter-axle differential of claim 2, wherein the driven hypoid gear is bolted to the inter-wheel differential.
4. The through drive axle final drive for a mining vehicle without an interaxle differential according to any one of claims 1 to 3, wherein the driving helical gear and the driven helical gear are arranged vertically or obliquely.
5. The through type drive axle final drive of the mining vehicle without the inter-axle differential according to claim 1, characterized in that a third diameter shaft section is arranged between the first diameter shaft section and the second diameter shaft section of the through shaft, the diameter of the first diameter shaft section is larger than that of the third diameter shaft section, and a first step structure is formed between the first diameter shaft section and the third diameter shaft section.
6. The through drive axle final drive for a mining vehicle without an inter-axle differential according to claim 5, wherein said drive helical gear has a central through hole receiving said through shaft first end, said central through hole having a second stepped configuration formed corresponding to the intersection of said outer end and an intermediate portion, said second stepped configuration receiving said bushing and a second diameter shaft section therein.
7. The through type drive axle main reducer of the mining vehicle without the interaxle differential according to claim 1, wherein a running vehicle speed of the mining vehicle is less than or equal to 50km/h.
CN202110496666.0A 2021-05-07 2021-05-07 Mining car through type drive axle main reducer without interaxle differential Pending CN115306887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110496666.0A CN115306887A (en) 2021-05-07 2021-05-07 Mining car through type drive axle main reducer without interaxle differential

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110496666.0A CN115306887A (en) 2021-05-07 2021-05-07 Mining car through type drive axle main reducer without interaxle differential

Publications (1)

Publication Number Publication Date
CN115306887A true CN115306887A (en) 2022-11-08

Family

ID=83854027

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110496666.0A Pending CN115306887A (en) 2021-05-07 2021-05-07 Mining car through type drive axle main reducer without interaxle differential

Country Status (1)

Country Link
CN (1) CN115306887A (en)

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