CN111425587A - Idle gear shaft structure with triangular support frame - Google Patents

Idle gear shaft structure with triangular support frame Download PDF

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Publication number
CN111425587A
CN111425587A CN202010364048.6A CN202010364048A CN111425587A CN 111425587 A CN111425587 A CN 111425587A CN 202010364048 A CN202010364048 A CN 202010364048A CN 111425587 A CN111425587 A CN 111425587A
Authority
CN
China
Prior art keywords
idle gear
gear shaft
support frame
triangular support
shaft structure
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
CN202010364048.6A
Other languages
Chinese (zh)
Inventor
丘道龙
班智博
肖刚
覃壮革
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.)
Guangxi Yuchai Machinery Co Ltd
Original Assignee
Guangxi Yuchai Machinery 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 Guangxi Yuchai Machinery Co Ltd filed Critical Guangxi Yuchai Machinery Co Ltd
Priority to CN202010364048.6A priority Critical patent/CN111425587A/en
Publication of CN111425587A publication Critical patent/CN111425587A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • 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
    • F16H2057/02039—Gearboxes for particular applications

Abstract

The invention discloses an idle gear shaft structure with a triangular support frame, which comprises an installation platform, wherein an idle gear shaft is vertically and convexly arranged on the installation platform, an idle gear bushing is sleeved on the idle gear shaft, an idle gear baffle is arranged at the front end of the idle gear shaft, an axial oil passage axially extending into the idle gear shaft is arranged on the rear end surface of the installation platform, a lubricating oil groove is arranged on the outer wall of the idle gear shaft, and a radial oil passage communicated with the axial oil passage is arranged on the lubricating oil groove. The idle gear shaft structure with the triangular support frame is reasonable in structural design and belongs to the technical field of gear parts.

Description

Idle gear shaft structure with triangular support frame
Technical Field
The invention relates to the technology of gear parts, in particular to an idle gear shaft structure with a triangular support frame.
Background
With the improvement of the requirements of the social and economic activities on the dynamic property, the economy, the adaptability and the like of the vehicle, the light weight, the safety and the applicability of the vehicle and parts thereof become a promotion direction which gets a great attention. In a transmission structure of a gear train of an internal combustion engine, an idle gear shaft part is often used, and the idle gear shaft is used for installing and fixing the idle gear in a specific position in a gear chamber to ensure that the idle gear can correctly and reliably transmit power. Some idle gear shaft axial direction cantilevers are longer, do not consider the atress condition of idle gear shaft, only arrange a few bolts in the middle of it makes idle gear shaft axial direction receive bending stress great, lead to idle gear shaft and bush bending deformation, take place the phenomenon of idle gear shaft abnormal wear and fracture.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and aims to provide an idler gear shaft structure with a triangular support frame, which has high structural strength and is not easy to deform.
In order to achieve the purpose, the invention provides an idle gear shaft structure with a triangular support frame, which comprises an installation platform, wherein an idle gear shaft is vertically and convexly arranged on the installation platform, an idle gear bushing is sleeved on the idle gear shaft, an idle gear baffle is arranged at the front end of the idle gear shaft, an axial oil passage axially extending into the idle gear shaft is arranged on the rear end surface of the installation platform, a lubricating oil groove is arranged on the outer wall of the idle gear shaft, and a radial oil passage communicated with the axial oil passage is arranged on the lubricating oil groove.
Furthermore, a thrust boss is arranged on the mounting platform and positioned at the root of the idle gear shaft.
Furthermore, the lateral part of the thrust boss is provided with a bayonet extending in the radial direction.
Furthermore, three connecting bolts which are arranged in a triangular mode are arranged on the mounting platform.
As a further improvement, a plurality of idle gear mounting holes axially penetrating through two ends of the idle gear shaft are formed in the idle gear shaft.
Furthermore, a locking bolt matched with the idle gear mounting hole is arranged on the idle gear baffle in a penetrating way.
Furthermore, a positioning core hole is formed in the front end of the idle gear shaft.
As a further improvement, the rear end of the idle gear shaft is provided with a positioning boss protruding out of the rear end face of the mounting platform.
Furthermore, the central lines of the axial oil passage and the positioning boss are superposed with the axis line of the idle gear shaft.
Advantageous effects
Compared with the prior art, the idle gear shaft structure with the triangular support frame has the following beneficial effects:
1) according to the idle gear shaft structure with the triangular support frame, the triangular support frame is formed by integrally forming the mounting platform and the idle gear shaft, so that the idle gear bearing can bear larger transmission torque, the idle gear shaft is ensured not to be bent and deformed, and the probability of failure in mechanical transmission is reduced.
2) The idle gear shaft structure with the triangular support frame is connected with an engine body through the connecting bolt and the locking bolt, so that the connection is firm, and the working stability of the whole idle gear assembly is ensured.
3) The idle gear shaft structure with the triangular support frame is provided with the lubricating oil groove, the radial oil duct, the axial oil duct and the like which are connected with the lubricating system of the engine body, so that the idle gear assembly and the idle gear bush are lubricated, the lubricating effect is good, and the service lives of the idle gear assembly and the idle gear bush are ensured.
Drawings
FIG. 1 is an exploded view of the structural assembly of the idler gear shaft configuration with triangular support bracket of the present invention;
FIG. 2 is an enlarged schematic view of the construction of the mounting platform and idler shaft of the present invention;
FIG. 3 is a sectional view of the construction of the idler shaft with triangular supports of the present invention;
fig. 4 is a sectional view of the structure taken along the line a-a in fig. 3.
In the figure: 1. mounting a platform; 2. an idler gear shaft; 3. an idler gear bushing; 4. an idler gear baffle; 5. an axial oil passage; 6. a lubricating oil groove; 7. a radial oil passage; 8. a thrust boss; 9. a bayonet; 10. a connecting bolt; 11. an idler gear mounting hole; 12. locking the bolt; 13. positioning the core hole; 14. positioning the boss; 15. connecting holes; 16. an idler gear assembly; 17. and an idler gear oil return groove.
Detailed description of the preferred embodiments
The invention is further described below with reference to examples, but not to be construed as being limited thereto, and any number of modifications which can be made by anyone within the scope of the claims are also within the scope of the claims.
Specific embodiments of the present invention are such that: referring to fig. 1-4, an idle gear shaft structure with a triangular support frame includes an installation platform 1, the installation platform 1 is a triangular plate structure, an idle gear shaft 2 is vertically and convexly arranged on the installation platform 1, the idle gear shaft 2 and the installation platform 1 are integrally formed, an idle gear bush 3 is sleeved on the idle gear shaft 2, an idle gear assembly 16 is sleeved on the idle gear shaft 2 through the idle gear bush 3, so that the idle gear assembly 16 can rotate relative to the idle gear shaft 2, an idle gear baffle 4 is arranged at the front end of the idle gear shaft 2, an axial oil passage 5 axially extending into the idle gear shaft 2 is arranged on the rear end surface of the installation platform 1, a lubricating oil groove 6 is arranged on the outer wall of the idle gear shaft 2, and a radial oil passage 7 communicated with the axial oil passage 5 is arranged on the lubricating oil groove 6. An idle gear oil return groove 17 extending to the inner wall of the shaft hole is formed in the front end face of the idle gear assembly 16. The idler gear shaft structure with the triangular support frame is characterized in that the triangular support frame is formed by integrally forming the mounting platform 1 and the idler gear shaft 2, so that the idler gear bearing can bear larger transmission torque, the idler gear shaft is guaranteed not to be bent and deformed, and the probability of failure in mechanical transmission is reduced.
The idle gear baffle 4 can axially limit the idle gear assembly 16, so that the idle gear assembly 16 is prevented from falling off, and the stability of the structure is ensured.
In this embodiment, two lubricating oil grooves 6 are symmetrically arranged on two sides of the outer wall of the idle gear shaft 2, the radial oil ducts 7 penetrate through the idle gear shaft 2 and are communicated with the lubricating oil grooves 6 on two sides, the lubricating oil grooves 6, the radial oil ducts 7, the axial oil ducts 5 and the like are arranged and connected with a lubricating system of an engine body, the idle gear assembly 16 and the idle gear bush 3 are lubricated, the lubricating effect is good, and the service lives of the idle gear assembly 16 and the idle gear bush 3 are guaranteed.
In the embodiment, a thrust boss 8 is arranged at the root part of the idle gear shaft 2 on the mounting platform 1, and a bayonet 9 extending radially is arranged at the side part of the thrust boss 8. The thrust boss 8 positions the idler gear assembly 16, and the tip cone isocline wedge-shaped tool is used for extending into the bayonet 9 to quickly slide the idler gear assembly 16 out towards the front end along the axial direction, so that the idler gear assembly 16 is convenient to disassemble, and the idler gear assembly 16 cannot be scratched.
In this embodiment, the mounting platform 1 is provided with three connecting bolts 10 arranged in a triangular shape, and the mounting platform 1 is provided with three connecting holes 15 adapted to the connecting bolts. The mounting platform 1 can be firmly fixed with the engine body by the connecting bolt 10 passing through the connecting hole 15.
In this embodiment, a plurality of idle gear mounting holes 11 axially penetrating through both ends of the idle gear shaft 2 are provided in the idle gear shaft, and locking bolts 12 adapted to the idle gear mounting holes 11 are provided in the idle gear baffle 4. The locking bolt 12 penetrates through the idle gear shaft 2 and then is further connected with the engine body, so that the idle gear shaft 2 can be further firmly connected with the engine body, meanwhile, the idle gear baffle 4 can reliably limit the idle gear assembly 16 in the axial direction, the idle gear assembly 16 cannot easily displace in the working process, and the working stability of the whole idle gear assembly 16 is ensured.
In the present embodiment, the front end of the idle gear shaft 2 is provided with a positioning core hole 13.
In this embodiment, the rear end of the idler gear shaft 2 is provided with a positioning boss 14 protruding from the rear end face of the mounting platform 1, so as to ensure that the mounting platform 1 is accurately positioned on the engine body.
In the present embodiment, the center lines of the axial direction oil passage 5 and the positioning boss 14 coincide with the axis line of the idler gear shaft 2.
The idle gear shaft structure with the triangular support frame is characterized in that three connecting bolts 10 penetrate through connecting holes 15 of a mounting platform 1 and are fastened on an engine body, bolt flange faces of the connecting bolts 10 are tightly attached to the plane of a mounting boss 1, an idle gear bush 3 is in interference fit in an idle gear hole of an idle gear assembly 16 and then is sleeved on an idle gear shaft 2, the rear end face of the idle gear assembly 16 is in contact with a thrust boss 8, an idle gear baffle plate 4 is mounted on the front end face of the idle gear assembly 16, and four bolts penetrate through holes of the idle gear baffle plate 4 and the idle gear mounting hole 11 on the end face of the idle gear shaft 2 until the idle gear shaft is connected with the engine body, so that the idle gear assembly 16 is prevented from axially moving. Lubricating oil on the engine body enters the radial oil duct 7 through the axial oil duct 5, flows into the lubricating oil groove 6 from oil holes at two ends of the radial oil duct 7, enters a gap between the circumferential surface of the idle gear shaft 2 and the inner wall of the idle gear bush 3 to lubricate the relative motion of the idle gear shaft and the idle gear bush, and finally flows back through idle gear oil return grooves 17 uniformly formed in the front end surface of the idle gear assembly.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims (9)

1. The utility model provides an idle gear axle construction with triangle-shaped support frame, its characterized in that, includes mounting platform (1), the perpendicular convex idle gear axle (2) that is equipped with on mounting platform (1), the cover is equipped with idle gear bush (3) on idle gear axle (2), the front end of idle gear axle (2) is equipped with idle gear baffle (4), be equipped with axial extension on the rear end face of mounting platform (1) and reach axial oil duct (5) in idle gear axle (2), be equipped with lubricating-oil groove (6) on the outer wall of idle gear axle (2), be equipped with on lubricating-oil groove (6) with radial oil duct (7) of axial oil duct (5) intercommunication.
2. The idle gear shaft structure with triangular support frame according to claim 1, characterized in that the installation platform (1) is provided with a thrust boss (8) at the root of the idle gear shaft (2).
3. An idler gear shaft structure with triangular support bracket according to claim 2, characterized in that the thrust boss (8) is provided with radially extending bayonet (9) at its side.
4. An idler gear shaft structure with triangular support frame according to claim 1, characterized in that the mounting platform (1) is provided with three connecting bolts (10) in triangular arrangement.
5. An idle gear shaft structure with a triangular support frame according to any one of claims 1 to 4, characterized in that a plurality of idle gear mounting holes (11) are formed in the idle gear shaft (2) and axially penetrate through both ends of the idle gear shaft.
6. An idle gear shaft structure with a triangular support frame as claimed in claim 5, characterized in that the idle gear baffle (4) is provided with a locking bolt (12) which is matched with the idle gear mounting hole (11) in a penetrating way.
7. An idle gear shaft structure with triangular support bracket according to claim 6 characterized in that the front end of the idle gear shaft (2) is provided with a positioning core hole (13).
8. An idle gear shaft structure with a triangular support frame according to claim 1, characterized in that the rear end of the idle gear shaft (2) is provided with a positioning boss (14) protruding from the rear end face of the mounting platform (1).
9. The idle gear shaft structure with the triangular support frame as claimed in claim 8, wherein the axial oil passage (5) and the positioning boss (14) have center lines coincident with the axis line of the idle gear shaft (2).
CN202010364048.6A 2020-04-30 2020-04-30 Idle gear shaft structure with triangular support frame Pending CN111425587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010364048.6A CN111425587A (en) 2020-04-30 2020-04-30 Idle gear shaft structure with triangular support frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010364048.6A CN111425587A (en) 2020-04-30 2020-04-30 Idle gear shaft structure with triangular support frame

Publications (1)

Publication Number Publication Date
CN111425587A true CN111425587A (en) 2020-07-17

Family

ID=71552228

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010364048.6A Pending CN111425587A (en) 2020-04-30 2020-04-30 Idle gear shaft structure with triangular support frame

Country Status (1)

Country Link
CN (1) CN111425587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112855895A (en) * 2021-02-26 2021-05-28 广西玉柴机器股份有限公司 Easy-to-assemble and disassemble idle gear component structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112855895A (en) * 2021-02-26 2021-05-28 广西玉柴机器股份有限公司 Easy-to-assemble and disassemble idle gear component structure
CN112855895B (en) * 2021-02-26 2024-03-29 广西玉柴机器股份有限公司 Idler gear part structure easy to disassemble and assemble

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