CN203822940U - Engine balance shaft mechanism - Google Patents

Engine balance shaft mechanism Download PDF

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Publication number
CN203822940U
CN203822940U CN201420230399.8U CN201420230399U CN203822940U CN 203822940 U CN203822940 U CN 203822940U CN 201420230399 U CN201420230399 U CN 201420230399U CN 203822940 U CN203822940 U CN 203822940U
Authority
CN
China
Prior art keywords
idle gear
shaft
balance shaft
trunnion shaft
gear
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.)
Expired - Fee Related
Application number
CN201420230399.8U
Other languages
Chinese (zh)
Inventor
黄第云
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 CN201420230399.8U priority Critical patent/CN203822940U/en
Application granted granted Critical
Publication of CN203822940U publication Critical patent/CN203822940U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an engine balance shaft mechanism. The engine balance shaft mechanism comprises a balance shaft chamber, an idle gear assembly and balance shaft gear assemblies. The balance shaft chamber is connected with an engine body in a fastened mode; the idle gear assembly comprises an idle gear, an idle gear shaft sleeve, an idle gear wearing plate, an idle gear baffle and an idle gear fastening bolt, the idle gear shaft sleeve is installed in the balance shaft chamber and fastened on the balance shaft chamber through a first screw and the idle gear wearing plate, the idle gear is installed on the balance shaft chamber through the idle gear shaft sleeve, and the idle gear fastening bolt positions the idle gear on the idle gear shaft sleeve through the idle gear baffle and a first positioning pin; the two balance shaft gear assemblies are arranged, each balance shaft gear assembly comprises a balance shaft, a balance shaft gear, a shaft sleeve, a baffle and a balance shaft thrust plate, the balance shaft thrust plates are fixed on the balance shaft chambers, and the balance shaft gears are compressed through balance shaft gear fastening bolts and the baffles. Noise and vibration of an engine are obviously reduced through the engine balance shaft mechanism, and the engine balance shaft mechanism is convenient to assemble and disassemble.

Description

Engine balance axis mechanism
Technical field
The utility model relates to engine art, particularly a kind of engine balance axis mechanism.
Background technique
There is unbalanced two-stage reciprocating inertia force in in-line four cylinder layout bent axle diesel engine, produces the main cause of vibration, noise while being diesel engine work, and it is the effective means that solve in-line four cylinder diesel vibration, reduce the problems such as noise that balanced controls are installed.It is inexorable trends that medium and small cylinder diameter high-speed diesel engine adopts balanced controls.
Balance shaft mechanism is conventional balanced controls, and on diesel engine, installing balance shaft mechanism additional can balance two-stage reciprocating inertia force, and the noise and vibration of internal-combustion engine is obviously declined.Lack at present corresponding engine balance axis mechanism.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Model utility content
It is a kind of simple and reasonable that the purpose of this utility model is to provide, can balanced engine two-stage reciprocating inertia force, and the noise and vibration of motor is declined obviously, and simple load and unload engine balance axis mechanism.
For achieving the above object, the utility model provides engine balance axis mechanism, comprising: trunnion shaft chamber, and itself and engine body are fastenedly connected, this trunnion shaft is indoor has been arranged side by side two trunnion shaft installation positions, and is provided with idle gear assembly installation position in trunnion shaft insertion end; Idle gear assembly, comprising: idle gear, idle gear axle sleeve, idle gear wearing plate, idle gear baffle plate and idle gear clamping bolt, and described idle gear axle sleeve is arranged on trunnion shaft chamber, and is fastened on trunnion shaft chamber by the first screw and idle gear wearing plate; Described idle gear is arranged on trunnion shaft chamber by idle gear axle sleeve, and idle gear clamping bolt is positioned at idle gear shaft by idle gear baffle plate and the first locating stud by idle gear and puts, and makes idle gear put rotation at idle gear shaft; Balance shaft gear assembly, it is divided into two groups, be arranged on respectively in indoor two the trunnion shaft installation positions that are arranged side by side of trunnion shaft, each is organized balance shaft gear assembly and comprises: trunnion shaft, balance shaft gear, axle sleeve, plate washer and trunnion shaft thrust plate, described trunnion shaft thrust plate is fixed on trunnion shaft chamber, described balance shaft gear compresses balance shaft gear by balance shaft gear clamping bolt and plate washer, makes to rotate in the axle sleeve of trunnion shaft on trunnion shaft chamber.
Preferably, in technique scheme, trunnion shaft chamber is grown secondary bolt and the short secondary bolt of main bearing cap and engine body by main bearing cap and is fastenedly connected.
Preferably, in technique scheme, idle gear axle sleeve passes through the second locating stud location and installation on trunnion shaft chamber.
Preferably, in technique scheme, balance shaft gear and trunnion shaft are by key location and installation.
Compared with prior art, the utlity model has following beneficial effect: this balance shaft of engine mechanism structure advantages of simple, can balanced engine two-stage reciprocating inertia force, the noise and vibration of motor is declined obviously, and mounting or dismounting are convenient.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of engine balance axis mechanism of the present utility model.
Fig. 2 is the main TV structure schematic diagram of engine balance axis mechanism of the present utility model.
Fig. 3 is that the A of Fig. 2 is to structural representation.
Fig. 4 is the plan structure schematic diagram of engine balance axis mechanism of the present utility model.
Main description of reference numerals:
1-trunnion shaft chamber, the long secondary bolt of 11-main bearing cap, the short secondary bolt of 12-main bearing cap, 21-idle gear, 22-idle gear axle sleeve, 23-idle gear wearing plate, 24-idle gear baffle plate, 25-idle gear clamping bolt, 26-locating stud, 27-the first screw, 28-locating stud, 31-trunnion shaft, 32-balance shaft gear, 33-axle sleeve, 34-plate washer, 35-trunnion shaft thrust plate, 36-the second screw, 37-packing ring, 38-key, 39-balance shaft gear clamping bolt.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
As shown in Figures 1 to 4, according to the concrete structure of the engine balance axis mechanism of the utility model embodiment, comprise: trunnion shaft chamber 1, and be laid in idle gear assembly and the balance shaft gear assembly in this trunnion shaft chamber 1.Trunnion shaft chamber 1 is fastened on engine body, engine crankshaft rotates and drives the idle gear of idle gear assembly to rotate, idle gear drives the balance shaft gear of balance shaft gear assembly to rotate again, thereby drive the trunnion shaft of balance shaft gear assembly to rotate, carry out balanced engine two-stage reciprocating inertia force, the noise and vibration of motor is declined.
Trunnion shaft chamber 1 grows secondary bolt 11 by main bearing cap and the short secondary bolt 12 of main bearing cap is fastenedly connected with engine body.Two trunnion shaft installation positions in trunnion shaft chamber 1, have been arranged side by side, for trunnion shaft being installed to form double balance shaft mechanism.The trunnion shaft insertion end of trunnion shaft chamber 1 is provided with idle gear assembly installation position, for idle gear assembly is installed, to form the meshing transmission structure of the idle gear of idle gear assembly and the balance shaft gear of balance shaft gear assembly.
Idle gear assembly comprises: idle gear 21, idle gear axle sleeve 22, idle gear wearing plate 23, idle gear baffle plate 24 and idle gear clamping bolt 25, idle gear axle sleeve 22 is positioned on trunnion shaft chamber 1 by locating stud 26, and is fastened on trunnion shaft chamber 1 by the first screw 27 and idle gear wearing plate 23.Idle gear 21 is arranged on trunnion shaft chamber 1 by idle gear axle sleeve 22, and idle gear clamping bolt 25 is positioned at idle gear 21 on idle gear axle sleeve 22 by idle gear baffle plate 24 and locating stud 28, and idle gear 21 is rotated on idle gear axle sleeve 22.
Balance shaft gear assembly is divided into two groups, be arranged on respectively in two trunnion shaft installation positions that are arranged side by side in trunnion shaft chamber 1, each is organized balance shaft gear assembly and comprises: trunnion shaft 31, balance shaft gear 32, axle sleeve 33, plate washer 34 and trunnion shaft thrust plate 35, trunnion shaft thrust plate 35 is fixed on trunnion shaft chamber 1 by the second screw 36 and packing ring 37, balance shaft gear 32 is located by key 38 with trunnion shaft 31, and by balance shaft gear clamping bolt 39 and plate washer 34, balance shaft gear 32 is compressed, make rotation in the axle sleeve 33 of trunnion shaft 31 on trunnion shaft chamber 1.
When engine crankshaft rotates, drive idle gear 21 to rotate, idle gear 21 drives balance shaft gear 32 to rotate, balance shaft gear 32 tightens together by the second screw 36 with trunnion shaft 31, thereby gear rotational speed also drives trunnion shaft to rotate, with balanced engine two-stage reciprocating inertia force, the noise and vibration of motor is declined obviously.
To sum up, this balance shaft of engine mechanism structure advantages of simple, can balanced engine two-stage reciprocating inertia force, the noise and vibration of motor is declined obviously, and mounting or dismounting is convenient.
The aforementioned description to concrete exemplary of the present utility model is for the object with illustration is described.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present utility model and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present utility model and various selection and change.Scope of the present utility model is intended to be limited by claims and equivalents thereof.

Claims (4)

1. an engine balance axis mechanism, is characterized in that, comprising:
Trunnion shaft chamber, itself and engine body are fastenedly connected, and this trunnion shaft is indoor has been arranged side by side two trunnion shaft installation positions, and is provided with idle gear assembly installation position in trunnion shaft insertion end;
Idle gear assembly, comprising: idle gear, idle gear axle sleeve, idle gear wearing plate, idle gear baffle plate and idle gear clamping bolt, and described idle gear axle sleeve is arranged on trunnion shaft chamber, and is fastened on trunnion shaft chamber by the first screw and idle gear wearing plate; Described idle gear is arranged on trunnion shaft chamber by idle gear axle sleeve, and idle gear clamping bolt is positioned at idle gear shaft by idle gear baffle plate and the first locating stud by idle gear and puts, and makes idle gear put rotation at idle gear shaft;
Balance shaft gear assembly, it is divided into two groups, be arranged on respectively in indoor two the trunnion shaft installation positions that are arranged side by side of trunnion shaft, each is organized balance shaft gear assembly and comprises: trunnion shaft, balance shaft gear, axle sleeve, plate washer and trunnion shaft thrust plate, described trunnion shaft thrust plate is fixed on trunnion shaft chamber, described balance shaft gear compresses balance shaft gear by balance shaft gear clamping bolt and plate washer, makes to rotate in the axle sleeve of trunnion shaft on trunnion shaft chamber.
2. engine balance axis mechanism according to claim 1, is characterized in that, described trunnion shaft chamber is grown secondary bolt and the short secondary bolt of main bearing cap and engine body by main bearing cap and is fastenedly connected.
3. engine balance axis mechanism according to claim 1, is characterized in that, described idle gear axle sleeve passes through the second locating stud location and installation on trunnion shaft chamber.
4. engine balance axis mechanism according to claim 3, is characterized in that, described balance shaft gear and trunnion shaft are by key location and installation.
CN201420230399.8U 2014-05-07 2014-05-07 Engine balance shaft mechanism Expired - Fee Related CN203822940U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420230399.8U CN203822940U (en) 2014-05-07 2014-05-07 Engine balance shaft mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420230399.8U CN203822940U (en) 2014-05-07 2014-05-07 Engine balance shaft mechanism

Publications (1)

Publication Number Publication Date
CN203822940U true CN203822940U (en) 2014-09-10

Family

ID=51478448

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420230399.8U Expired - Fee Related CN203822940U (en) 2014-05-07 2014-05-07 Engine balance shaft mechanism

Country Status (1)

Country Link
CN (1) CN203822940U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103953684A (en) * 2014-05-07 2014-07-30 广西玉柴机器股份有限公司 Balancing shaft mechanism of engine
CN107553081A (en) * 2016-06-30 2018-01-09 天津市汇点机电设备开发有限公司 A kind of application method of shaft sleeve positioning structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103953684A (en) * 2014-05-07 2014-07-30 广西玉柴机器股份有限公司 Balancing shaft mechanism of engine
CN107553081A (en) * 2016-06-30 2018-01-09 天津市汇点机电设备开发有限公司 A kind of application method of shaft sleeve positioning structure

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140910

Termination date: 20180507