CN207976250U - A kind of horizontal crankshaft dynamic balancing measurement mechanism - Google Patents

Abstract

The utility model provides a kind of horizontal crankshaft dynamic balancing measurement mechanism, detects crankshaft imbalance amount size, is removed amount of unbalance by suitable method.The utility model includes：Bearing, spring, rotor, Hooks coupling universal coupling, drive shaft, phase reference generator, sensor, correcting plane separator, measuring circuit, Left Angle, left magnitude, right angular and right magnitude indicator；In two bearings, two bearings are coupled by two springs with engine base rotor bearing respectively；Drive shaft is connected by Hooks coupling universal coupling with rotor；First sensor, second sensor are connected respectively at first bearing and second bearing, it is connect with correcting plane separator, phase reference generator, correcting plane separator are connected with measuring circuit, first measuring circuit is connected with Left Angle, left magnitude indicator, and the second measuring circuit is connected with right angular, right magnitude indicator.The advantageous effect that this programme can generate is：The size of each amount of unbalance of rotor can be accurately detected out.

Description

A kind of horizontal crankshaft dynamic balancing measurement mechanism

Technical field

The utility model is related to a kind of mechanical precision mechanism for testing, specifically a kind of horizontal crankshaft dynamic balancing measurement mechanisms.

Background technology

Crankshaft of diesel engine is a kind of special rotating machinery, if will produce vibration when crank rotation, this vibration can pass It is delivered on the other component of diesel engine, no small damage can be caused for a long time to bent axle itself or diesel engine by going down, and machinery shakes Movable property is given birth to most basic most directly the reason is that " out-of-balance force "；If the quality of the motion parts of machinery has acceleration, root According to the D'Alembert's principle in mechanics（When quality is that the object of m is moved with acceleration a, which generates on acceleration negative direction The power that one size is ma, this power are referred to as inertia force）, which just will produce inertia force, these inertia force are being transported If can cancel out each other inside dynamic component, outside will not be had an impact, machinery is at equilibrium state, otherwise, inertia Power will directly or indirectly action mechanical itself, cause to vibrate；In order to avoid vibration, it is necessary to improve mechanical moving element Mass Distribution, eliminates out-of-balance force, this process is known as balancing；The rotary part of rotating machinery is being rotated around some axis When, internal each particle will produce centrifugal intertia force, can be with if centrifugal intertia force is distributed relative to axisymmetry It cancels out each other, machine internal does not have the presence of " out-of-balance force ", if centrifugal intertia force mal-distribution, machine internal have " out-of-balance force " exists, therefore entire machinery is in non-equilibrium state；The reason of causing rotating machinery to generate " out-of-balance force " has Very much, it is summarized as follows：1）Some casting or forging, itself can not be machined, and during being manufactured, core Center line is misaligned or asymmetric with rotation axis；2）Metal material interior tissue it is uneven, waited by casting, forging Cheng Hou ensure that geometric dimension meets the requirements although being machined, since internal density is uneven, when rotation still So it will produce imbalance；3）Limitation of the component in design or manufacture so that the rotary part of certain rotating machineries is asymmetric, makes At imbalance；4）Mismachining tolerance or rigging error cause between rotary part with the presence of gap, due to each component when rotation Imbalance is caused in gap；5）The internal stress installed or generated when being heat-treated to rotary part is not eliminated in time；6）Rotation Temperature distortion when rotation member works generates uneven；It can be seen that from the above imbalance Producing reason and manufacturing and pacifying The imbalance that mechanical system is completely eliminated when dress be it is highly difficult even not possible with.The utility model devises a kind of sleeping After installation is complete, the big of its amount of unbalance is detected by research technique in workpiece manufacture for formula crankshaft dynamic balance mechanism for testing It is small, and then removed amount of unbalance using suitable method according to workpiece own characteristic, so that workpiece is reached balance, and it is existing Balancing machine is compared, and mechanism can test out the amount of unbalance size on the rotor left side and the right respectively, and test result is more accurate, More conducively eliminate the imbalance of mechanical system.

Utility model content

The utility model provides a kind of horizontal crankshaft dynamic balancing measurement mechanism, according to what is be previously mentioned in above-mentioned background technology Problem devises the present apparatus and after installation is complete, the size of its amount of unbalance is detected by research technique in bent axle manufacture, into And according to workpiece own characteristic, using suitable method, amount of unbalance is removed, workpiece is made to reach balance.

What the technical solution of the utility model was realized in：

A kind of horizontal crankshaft dynamic balancing measurement mechanism includes：First bearing, the first spring, rotor, second spring, the second axis Hold, Hooks coupling universal coupling, drive shaft, phase reference generator, first sensor, second sensor, correcting plane separator, first Measuring circuit, the second measuring circuit, Left Angle indicator, left magnitude indicator, right angular indicator, right magnitude indicator；Turn Son is supported in first bearing and second bearing, and first bearing and second bearing pass through the first spring and second spring and machine respectively Seat connection；Drive shaft is connected to Hooks coupling universal coupling, and Hooks coupling universal coupling is connected with rotor；First sensor, second sensor difference It is connected in first bearing and second bearing, first sensor, second sensor and correcting plane separator connect, phase reference Generator is connected with the first measuring circuit, the second measuring circuit respectively, correcting plane separator respectively with the first measuring circuit, Two measuring circuits are connected, and the first measuring circuit is connected with Left Angle indicator, left magnitude indicator respectively, the second measuring circuit point It is not connected with right angular indicator, right magnitude indicator.

Drive shaft is driven by motor by pulley mechanism.

The advantageous effect that this programme can generate is：

The utility model converts mechanical oscillation to vibration to electric signal by sensor, and is analyzed, in conjunction with existing Electronic equipment, can more accurately detect the size of each amount of unbalance of rotor.

Description of the drawings

Fig. 1 is a kind of frame principle figure of horizontal crankshaft dynamic balancing measurement of the utility model mechanism；

Fig. 2 is a kind of horizontal crankshaft dynamic balancing measurement of the utility model mechanism structure chart.

Specific implementation mode

As shown in Figure 1 to Figure 2, the utility model embodiment provides a kind of horizontal crankshaft dynamic balancing measurement mechanism, including： A kind of horizontal crankshaft dynamic balancing measurement mechanism includes：First bearing 1, the first spring 2, rotor 3, second spring 4, second bearing 5, Hooks coupling universal coupling 6, drive shaft 7, phase reference generator 8, first sensor 9, second sensor 10, correcting plane separator 11, the first measuring circuit 12, the second measuring circuit 13, Left Angle indicator 14, left magnitude indicator 15, right angular indicator 16, right magnitude indicator 17；Rotor 3 is supported in first bearing 1 and second bearing 5, and first bearing 1 and second bearing 5 are distinguished Coupled with engine base by the first spring 2 and second spring 5；Motor 18 drives drive shaft 7 to rotate by pulley mechanism 19, driving Axis 7 is connected to Hooks coupling universal coupling 6, and Hooks coupling universal coupling 6 is connected with rotor 3, and rotor 3 is driven to rotate；If there is injustice on rotor 3 It weighs, will produce vibration in first bearing 1 and second bearing 5, first sensor 9, second sensor 10 are respectively at 1 and of first bearing Second bearing 5 is connected, and the vibration or vibration force detected by first sensor 9, second sensor 10, first sensor 9, Second sensor 10 is connect with correcting plane separator 11, and phase reference generator 8 is surveyed with the first measuring circuit 12, second respectively It measures circuit 13 to be connected, correcting plane separator 11 is connected with the first measuring circuit 12, the second measuring circuit 13 respectively, the first sensing Device 9 and the corrected plane separation network 11 of 10 output signal of second sensor, divide together with the output of corresponding reference generator 8 Not Jin Ru the first measuring circuit 12 and the second measuring circuit 13, the first measuring circuit 12 respectively with Left Angle indicator 14, Zuo Liang PH indicator pH 15 is connected, and the second measuring circuit 13 is connected with right angular indicator 16, right magnitude indicator 17 respectively, and first measures Circuit 12 and the second measuring circuit 13 measure the unbalance phase of two correcting planes of left and right and uneven magnitude respectively, and respectively Show that the Left Angle margin of error, left magnitude indicator 15 show that left measurement error amount, right angular refer in Left Angle indicator 14 Show and show the right angular margin of error on device 16, the right magnitude margin of error is shown on right magnitude indicator 17.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims (2)

1. a kind of horizontal crankshaft dynamic balancing measurement mechanism, it is characterised in that：Including first bearing（1）, the first spring（2）, rotor （3）, second spring（4）, second bearing（5）, Hooks coupling universal coupling（6）, drive shaft（7）, phase reference generator（8）, first pass Sensor（9）, second sensor（10）, correcting plane separator（11）, the first measuring circuit（12）, the second measuring circuit（13）、 Left Angle indicator（14）, left magnitude indicator（15）, right angular indicator（16）, right magnitude indicator（17）；Rotor（3）Branch It holds in first bearing（1）And second bearing（5）On, first bearing（1）And second bearing（5）Pass through the first spring respectively（2）With Second spring（4）Couple with engine base；Drive shaft（7）It is connected to Hooks coupling universal coupling（6）, Hooks coupling universal coupling（6）With rotor（3）Phase Even, first sensor（9）, second sensor（10）Respectively with first bearing（1）And second bearing（5）It is connected, the first sensing Device（9）, second sensor（10）With correcting plane separator（11）Connection, phase reference generator（8）It is surveyed respectively with first Measure circuit（12）, the second measuring circuit（13）It is connected, correcting plane separator（11）Respectively with the first measuring circuit（12）, second Measuring circuit（13）It is connected, the first measuring circuit（12）Respectively with Left Angle indicator（14）, left magnitude indicator（15）It is connected, Second measuring circuit（13）Respectively with right angular indicator（16）, right magnitude indicator（17）It is connected.

2. a kind of horizontal crankshaft dynamic balancing measurement mechanism according to claim 1, it is characterised in that：The drive shaft（7） By motor（18）Pass through pulley mechanism（19）Driving.