CN214874193U

CN214874193U - Power transmission arrangement structure of vehicle

Info

Publication number: CN214874193U
Application number: CN202120992422.7U
Authority: CN
Inventors: 付鹏月; 冯聪; 尹诗龙
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: Sinotruk Jinan Power Co Ltd; China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-11-26
Anticipated expiration: 2031-05-10

Abstract

The utility model relates to a power transmission arrangement structure of a vehicle, transition transmission shaft, final drive shaft and a pair of frame longerons symmetrically arranged at the bottom of the vehicle, wherein an engine, a transmission and a drive axle are sequentially arranged between the pair of frame longerons from front to back, and the two sides of the engine and the transmission are respectively arranged between the pair of frame longerons through a pair of suspension connecting pieces arranged front and back; two ends of the transition transmission shaft are respectively connected with the output end of the engine and the input end of the transmission through universal joints; and two ends of the main transmission shaft are respectively connected with the output end of the transmission and the input end of the drive axle through universal joints. The engine and the transmission are separately arranged on the frame longitudinal beam, so that the overhaul and the maintenance are convenient, the phenomenon that the power assembly is subjected to uneven stress and is easily damaged due to over-positioning installation caused by over-concentration of the weight of the power assembly is avoided; the length of the transmission shaft of the transmission and the drive axle is shortened, the resonance phenomenon is not easy to occur, the fault occurrence points are reduced, and the transmission efficiency is improved.

Description

Power transmission arrangement structure of vehicle

Technical Field

The utility model belongs to the technical field of vehicle power transmission system, specifically speaking is a power transmission arrangement structure of vehicle.

Background

At present, the traditional power transmission system of the vehicle is mainly directly and rigidly connected with an engine and a transmission shell, the bearing load of a fixed installation area of a power assembly is large, the over-positioning of the power assembly can be formed, the stress imbalance is caused, the power assembly is easy to damage, particularly on a rear-drive vehicle with a longer axle distance, the distance between the output end of a transmission and the input end of a drive axle is longer, an intermediate transmission shaft and an intermediate support are usually set for avoiding the resonance phenomenon caused by the longer transmission shaft, and the intermediate transmission shaft is connected with a main transmission shaft, so that the transmission efficiency is reduced, the number of fault points is increased, the maintenance cost is high, and the attendance rate of the vehicle is low.

SUMMERY OF THE UTILITY MODEL

Cause weight to concentrate for solving the direct rigid connection of engine and derailleur, the longer problem that leads to transmission efficiency low, the fault point is many of transmission shaft on the back drive car, the utility model provides a power transmission arrangement structure of vehicle.

The utility model discloses a realize through following technical scheme:

a power transmission arrangement structure of a vehicle comprises a transition transmission shaft, a main transmission shaft and a pair of frame longitudinal beams symmetrically arranged at the bottom of the vehicle, wherein an engine, a transmission and a drive axle are sequentially arranged between the pair of frame longitudinal beams from front to back, and two sides of the engine and the transmission are respectively arranged between the pair of frame longitudinal beams through a pair of suspension connecting pieces arranged front and back; two ends of the transition transmission shaft are respectively connected with the output end of the engine and the input end of the transmission through universal joints; and two ends of the main transmission shaft are respectively connected with the output end of the transmission and the input end of the drive axle through universal joints. The engine and the transmission are separately arranged on the frame longitudinal beam, so that the overhaul and the maintenance are convenient, the phenomenon that the power assembly is subjected to uneven stress and is easily damaged due to over-positioning installation caused by over-concentration of the weight of the power assembly is avoided; the length of the transmission shaft of the transmission and the drive axle is shortened, the resonance phenomenon is not easy to occur, the fault occurrence points are reduced, and the transmission efficiency is improved.

The utility model discloses a further improvement still, the output of above-mentioned engine is equipped with twists reverse the bumper shock absorber, twist reverse the bumper shock absorber pass through the bolt install in meet on the engine and with the engine flywheel on the engine, it has output flange through spline output shaft to twist reverse the bumper shock absorber, output flange pass through the universal joint with transition transmission shaft meets. Can effectively absorb torsional vibration and ensure that the vehicle runs more stably.

The utility model discloses a further improvement still, above-mentioned torsion damper is last to be equipped with grease mouth and the normal open type breather plug. The lubrication and maintenance of internal parts are convenient.

The utility model discloses a further improvement is in addition, and the input of above-mentioned derailleur is equipped with the derailleur transition piece that meets with the input shaft of derailleur, the derailleur transition piece outside is equipped with the transition flywheel shell of installing on the derailleur through the bolt, the derailleur transition piece is through running through the spline input shaft of transition flywheel shell is connected with input flange, input flange pass through the universal joint with transitional drive shaft meets. The transmission of torque can be improved while the vehicle is running smoothly.

The utility model discloses a further improvement still, be equipped with grease mouth and normally open type breather plug on the above-mentioned transition bell housing. The lubrication and maintenance of internal parts are convenient.

The utility model discloses a further improvement still, above-mentioned derailleur is automatic transmission, the flexible dish that the derailleur transition piece is for connecing with the input shaft of derailleur. The impact load and the axial vibration to the automatic transmission are reduced by the flexible disks.

The utility model discloses a further improvement still, above-mentioned derailleur is mechanical transmission, the derailleur transition piece is the derailleur flywheel, the derailleur flywheel meets through the input shaft of clutch with the derailleur. Impact load and axial vibration to the mechanical transmission are reduced by the transmission flywheel and the clutch.

The utility model is further improved in that the transition transmission shaft is of a telescopic structure; the main transmission shaft is of a telescopic structure. Through the telescopic transmission shaft structure, the mutual abrasion between the engine and the transmission and between the transmission and the drive axle and the transmission shaft is reduced.

According to the technical scheme provided by the utility model, the beneficial effects are that: the engine and the transmission are separately arranged on the frame longitudinal beam, so that the overhaul and the maintenance are convenient, the phenomenon that the power assembly is subjected to uneven stress and is easily damaged due to over-positioning installation caused by over-concentration of the weight of the power assembly is avoided; the length of the transmission shaft of the transmission and the drive axle is shortened, the resonance phenomenon is not easy to occur, the fault occurrence points are reduced, and the transmission efficiency is improved.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the drawings: 1. the frame longitudinal beam comprises a frame longitudinal beam body 11, a suspension connecting piece 2, an engine 3, a transmission 4, a driving axle 5, a transition transmission shaft 6, a main transmission shaft 7, a torsion damper 8 and a transition flywheel shell.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in the attached drawings, the power transmission arrangement structure of the vehicle comprises a pair of frame longitudinal beams 1 which are symmetrically distributed on two sides of the bottom of the vehicle, wherein an engine 2, a transmission 3 and a drive axle 4 are sequentially arranged between the frame longitudinal beams 1 from front to back, and two sides of the engine 2 and the transmission 3 are respectively installed on the bottom surfaces of the frame longitudinal beams 1 through a pair of suspension connecting pieces 11 which are arranged front and back.

A transition transmission shaft 5 is connected between the output end of the engine 2 and the input end of the transmission 3 through universal joints respectively, and the transition transmission shaft 5 is of a telescopic structure; and a main transmission shaft 6 is connected between the output end of the speed changer 3 and the input end of the drive axle 4 through universal joints respectively, and the main transmission shaft 6 is of a telescopic structure.

A torsional damper 7 is arranged at the output end of the engine 2, the torsional damper 7 is mounted on the engine 2 through a bolt and is connected with an engine flywheel on the engine 2, and a grease nozzle and a normally open type breather plug are arranged on the torsional damper 7; the torsion damper 7 is connected with an output flange through a spline output shaft, the output flange is connected with one end of the transition transmission shaft 5 through a universal joint, and the other end of the transition transmission shaft is connected with the input end of the speed changer 3 through the universal joint. The input end of the speed changer 3 is provided with a speed changer transition piece connected with an input shaft of the speed changer 3, the outer side of the speed changer transition piece is provided with a transition flywheel shell 8 arranged on the speed changer 3 through a bolt, and the transition flywheel shell 8 is provided with a grease nozzle and a normally open type vent plug; the transmission transition piece is connected with an input flange through a spline input shaft penetrating through the transition flywheel shell 8, and the input flange is connected with the other end of the transition transmission shaft 5 through a universal joint.

When the transmission 3 is an automatic transmission, the transmission transition piece is a flexible disk connected with an input shaft of the transmission 3.

When the transmission 3 is a mechanical transmission, the transmission transition piece is a transmission flywheel, and the transmission flywheel is connected with an input shaft of the transmission 3 through a clutch.

In conclusion, the working principle of the device is as follows: the engine 2 is connected with the transmission 3 through the transition transmission shaft 5, so that the engine 2 and the transmission 3 can be conveniently overhauled and maintained at the later stage, and the stress impact of the direct connection of the engine 2 and the transmission 3 can be effectively relieved; meanwhile, the engine 2 and the transmission 3 are respectively installed on the bottom surface of the frame longitudinal beam 1 through the four suspension connecting pieces 11 to form a stable four-point fixed support, so that the damage of a power assembly caused by uneven stress on the engine 2 or the transmission 3 due to over-positioning is avoided. The torsional vibration is effectively absorbed through the torsional vibration damper 7, so that the vehicle runs stably.

The utility model discloses a power transmission arrangement structure of vehicle, the engine and the speed changer are separately installed on the frame longitudinal beam, which is convenient for maintenance, avoids the power assembly weight from being too concentrated, and leads to over-positioning installation, thereby the power assembly is easy to be damaged due to uneven stress; the length of the transmission shaft of the transmission and the drive axle is shortened, the resonance phenomenon is not easy to occur, the fault occurrence points are reduced, and the transmission efficiency is improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative relationships in positions, if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The power transmission arrangement structure of the vehicle is characterized by comprising a transition transmission shaft (5), a main transmission shaft (6) and a pair of frame longitudinal beams (1) symmetrically arranged at the bottom of the vehicle, wherein an engine (2), a transmission (3) and a drive axle (4) are sequentially arranged between the pair of frame longitudinal beams (1) from front to back, and two sides of the engine (2) and the transmission (3) are respectively installed between the pair of frame longitudinal beams (1) through a pair of suspension connecting pieces (11) arranged front and back; two ends of the transition transmission shaft (5) are respectively connected with the output end of the engine (2) and the input end of the transmission (3) through universal joints; and two ends of the main transmission shaft (6) are respectively connected with the output end of the speed changer (3) and the input end of the drive axle (4) through universal joints.

2. The power transmission arrangement structure of a vehicle according to claim 1, characterized in that a torsional damper (7) is provided at the output end of the engine (2), the torsional damper (7) is mounted on the engine (2) by bolts and connected with an engine flywheel on the engine (2), the torsional damper (7) is connected with an output flange by a spline output shaft, and the output flange is connected with the transition transmission shaft (5) by a universal joint.

3. The power transmission arrangement of a vehicle according to claim 2, characterized in that the torsional damper (7) is provided with a grease nipple and a normally open breather plug.

4. The power transmission arrangement structure of a vehicle according to any one of claims 1 to 3, characterized in that the input end of the transmission (3) is provided with a transmission transition piece connected with the input shaft of the transmission (3), the outer side of the transmission transition piece is provided with a transition flywheel housing (8) mounted on the transmission (3) through bolts, the transmission transition piece is connected with an input flange through a spline input shaft penetrating through the transition flywheel housing (8), and the input flange is connected with the transition transmission shaft (5) through a universal joint.

5. The power transmission arrangement of a vehicle according to claim 4, characterized in that the transition flywheel housing (8) is provided with a grease nipple and a normally open breather plug.

6. A power transmission arrangement for a vehicle according to claim 4, characterised in that the transmission (3) is an automatic transmission and the transmission transition piece is a flexible disc interfacing with an input shaft of the transmission (3).

7. A power transmission arrangement of a vehicle according to claim 4, characterized in that the transmission (3) is a mechanical transmission and the transmission transition piece is a transmission flywheel, which is connected to the input shaft of the transmission (3) by means of a clutch.

8. The power transmission arrangement of a vehicle according to claim 4, characterized in that the transitional drive shaft (5) is of a telescopic construction; the main transmission shaft (6) is of a telescopic structure.