CN204061717U - Crankshaft dynamic balance test counter weight device - Google Patents
Crankshaft dynamic balance test counter weight device Download PDFInfo
- Publication number
- CN204061717U CN204061717U CN201420453108.1U CN201420453108U CN204061717U CN 204061717 U CN204061717 U CN 204061717U CN 201420453108 U CN201420453108 U CN 201420453108U CN 204061717 U CN204061717 U CN 204061717U
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- CN
- China
- Prior art keywords
- balancing weight
- slot
- make way
- lower cover
- dynamic balance
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- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of crankshaft dynamic balance test counter weight device.This counter weight device comprises: balancing weight lower cover, and the top of the rotary side of this balancing weight lower cover adopts designed arc-shaped appearance, and the center of top of this rotary side offers the first slot to make way; The top of the locking side of this balancing weight lower cover adopts planar design, and the center of top of this locking side offers the second slot to make way; Balancing weight upper cover, the top of the rotary side of this balancing weight upper cover has the circular arc plug with the first slot to make way adaptation of described balancing weight lower cover, described circular arc plug inserts described first slot to make way, and makes balancing weight upper cover and balancing weight lower cover carry out pivotable connection by the first straight pin through this slot to make way; And latch assembly, it comprises: the second straight pin, loose joint bolt and lock nut.This crankshaft dynamic balance test counter weight device improves crankshaft dynamic balance test and the conformity of actual working state, can Efficient Evaluation crankshaft rod system running balance in real work more.
Description
Technical field
The utility model relates to engine crankshaft dynamic balance running field, particularly a kind of crankshaft dynamic balance test counter weight device.
Background technique
At present, crankshaft dynamic balance test is all completed having departed from actual working state Imitating, namely the effect of piston and connecting rod assembly actual influence is lacked, crankshaft dynamic balance test result and actual working state can not be coincide, can not Efficient Evaluation crankshaft rod system running balance in real work, have a strong impact on the Efficient Evaluation of the overall performance of motor, be unfavorable for the reliability assessment of motor, reduce the value of crankshaft dynamic balance test.
The information being 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 in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is to provide a kind of simple and reasonable crankshaft dynamic balance to test counter weight device, this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, when running well with simulated engine, piston and connecting rod assembly is to active force during crankshaft operation, improve the conformity of crankshaft dynamic balance test and actual working state, can Efficient Evaluation crankshaft rod system running balance in real work more, be conducive to the Efficient Evaluation of the overall performance of motor, enhance the value of crankshaft dynamic balance test.
For achieving the above object, the utility model provides crankshaft dynamic balance test counter weight device, comprising: balancing weight lower cover, and its entirety is semicircle, and the top of the rotary side of this balancing weight lower cover adopts designed arc-shaped appearance, and the center of top of this rotary side offers the first slot to make way; The top of the locking side of this balancing weight lower cover adopts planar design, and the center of top of this locking side offers the second slot to make way; Balancing weight upper cover, it is overall is semicircle, the top of the rotary side of this balancing weight upper cover has the circular arc plug with the first slot to make way adaptation of described balancing weight lower cover, described circular arc plug inserts described first slot to make way, and makes balancing weight upper cover and balancing weight lower cover carry out pivotable connection by the first straight pin through this slot to make way; The top of the locking side of described balancing weight upper cover adopts planar design, and the center of top of this locking side offers the 3rd slot to make way, and described 3rd slot to make way upper end processes bolt mounting plane; And latch assembly, it comprises: the second straight pin, loose joint bolt and lock nut, the lower end head of loose joint bolt is arranged in the second slot to make way through described second slot to make way by described second straight pin, the 3rd slot to make way of balancing weight upper cover is stretched in the upper end of described loose joint bolt, and compressed the bolt mounting plane locking of the 3rd slot to make way by locking nut, and then realize the closed of balancing weight upper cover and balancing weight lower cover.
Preferably, in technique scheme, under balancing weight, cover the first counterweight hole also offering and run through front and back sides; Balancing weight covers the second counterweight hole also offering and run through front and back sides.
Preferably, in technique scheme, the first counterweight hole is two; Described second counterweight hole is two.
Preferably, in technique scheme, the front and back sides of balancing weight lower cover also has the first pairing positioning convex; The front and back sides of balancing weight upper cover also has the second pairing positioning convex.
Preferably, in technique scheme, balancing weight lower cover and the first straight pin, the second straight pin interference fit, balancing weight upper cover and the first straight pin, the second straight pin, loose joint bolt all adopt Spielpassung.
Compared with prior art, the utility model has following beneficial effect: this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, when running well with simulated engine, piston and connecting rod assembly is to active force during crankshaft operation, improve the conformity of crankshaft dynamic balance test and actual working state, can Efficient Evaluation crankshaft rod system running balance in real work more, be conducive to the Efficient Evaluation of the overall performance of motor, enhance the value of crankshaft dynamic balance test.
Accompanying drawing explanation
Fig. 1 is the Unclosing structure schematic diagram of crankshaft dynamic balance of the present utility model test counter weight device.
Fig. 2 is the closing structure schematic diagram of crankshaft dynamic balance of the present utility model test counter weight device.
Fig. 3 is the main TV structure schematic diagram of balancing weight lower cover of crankshaft dynamic balance of the present utility model test counter weight device.
Fig. 4 is the balancing weight lower cover plan structure schematic diagram of crankshaft dynamic balance of the present utility model test counter weight device.
Fig. 5 is the main TV structure schematic diagram of balancing weight upper cover of crankshaft dynamic balance of the present utility model test counter weight device.
Fig. 6 is the balancing weight upper cover plan structure schematic diagram of crankshaft dynamic balance of the present utility model test counter weight device.
Fig. 7 is the using state structural representation of crankshaft dynamic balance of the present utility model test counter weight device.
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 not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figures 1 to 7, according to piston and connecting rod assembly in the crankshaft dynamic balance test counter weight device main analog real work of the utility model embodiment on the impact of crank rotation, by supporting the use with bent axle, optimize the validity of crankshaft dynamic balance test.Its concrete structure comprises: the balancing weight upper cover 1 that pivotable to be opened/closed links together and balancing weight lower cover 2, wherein, balancing weight upper cover 1 is connected by the first straight pin 3 pivotable with the turn side of balancing weight lower cover 2, the locking side of the two controls opening and closing by latch assembly, to be laid on the connecting rod neck of bent axle, to carry out when simulated engine runs well piston and connecting rod assembly to active force during crankshaft operation, can Efficient Evaluation crankshaft rod system running balance in real work more, improve the conformity of crankshaft dynamic balance test and actual working state, be conducive to the Efficient Evaluation of the overall performance of motor.
As shown in Figure 3 and Figure 4, the entirety of balancing weight lower cover 2 is semicircle, the top (in figure right hand top) of its rotary side 21 adopts designed arc-shaped appearance, and the center of top of this rotary side 21 offers the first slot to make way 22, facilitates balancing weight upper cover install and relatively rotate; The top (in figure left side top) of the locking side 23 of balancing weight lower cover 2 adopts planar design, and the center of top of this locking side 23 offers the second slot to make way 24, facilitates the installation of counter weight device and relatively operates; In addition, the rotary side of balancing weight lower cover 2 has the first straight pin mounting hole 25 being horizontally through the first slot to make way 22, the locking side of balancing weight lower cover 2 has the second straight pin mounting hole 26 being horizontally through the second slot to make way 24, and balancing weight upper and lower covers can be relatively rotated freely; In order to meet the self balancing of balancing weight, balancing weight lower cover 2 also offers the first counterweight hole 27 running through front and back sides, preferably, the counterweight hole 27 of the present embodiment is two; The front and back sides of balancing weight lower cover 2 also has the first pairing positioning convex 28, and when whole crankshaft dynamic balance test counter weight device is laid in the connecting rod neck of bent axle, the first pairing positioning convex 28 pushes against connecting rod neck both sides crankweb from both sides positions.
As shown in Figure 5 and Figure 6, the entirety of balancing weight upper cover 1 is semicircle, its rotary side 11 (in figure right hand top) has the circular arc plug 12 with the first slot to make way 22 adaptation of balancing weight lower cover 2, three cylindrical pin mounting hole 13 offered with one heart by circular arc plug 12, is each passed through the first straight pin mounting hole 25 by the first straight pin 3 and can realizes balancing weight upper cover 1 with three cylindrical pin mounting hole 13 and be connected with the pivotable of the turn side of balancing weight lower cover 2; The locking side 14 (in figure left side top) of balancing weight upper cover 1 adopts planar design, and locking side 14 central authorities offer the 3rd slot to make way the 15, three slot to make way 15 upper end and process bolt mounting plane; In order to meet the self balancing of balancing weight, balancing weight upper cover 1 also offers the second counterweight hole 16 running through front and back sides, preferably, the second counterweight hole 16 of the present embodiment is two; The front and back sides of balancing weight upper cover 1 also has the second pairing positioning convex 17, and when whole crankshaft dynamic balance test counter weight device is laid in the connecting rod neck of bent axle, the second pairing positioning convex 17 pushes against connecting rod neck both sides crankweb from both sides positions.
Latch assembly comprises: the second straight pin 41, loose joint bolt 42 and locking nut 43, wherein, the lower end head of loose joint bolt 42 is arranged in the second slot to make way 24 through the second slot to make way 24 by the second straight pin 41, the 3rd slot to make way 15 of balancing weight upper cover 1 is stretched in the upper end of loose joint bolt 42, and compressed the bolt mounting plane locking of the 3rd slot to make way 15 by locking nut 43, and then realize the closed of balancing weight upper cover 1 and balancing weight lower cover 2.Like this, controlled the open and close of counter weight device by locking nut 43, to adapt to the dismounting of this device.
Not only during assembling, balancing weight lower cover 2 and the first straight pin 3, second straight pin 41 interference fit, balancing weight upper cover 1 and the first straight pin 3, second straight pin 41, loose joint bolt 42 all adopt Spielpassung, ensure easy for installation, but also assurance device reliability.
As shown in Figure 7, during use, first, the balancing weight upper cover 1 making this crankshaft dynamic balance test counter weight device 6 is pivoted relative to each other around the first straight pin 3 with balancing weight lower cover 2 and opens, and be stuck on the connecting rod neck of bent axle 5, then balancing weight upper cover 1 and balancing weight lower cover 2 are locked by latch assembly, realize this crankshaft dynamic balance test counter weight device to be laid on the connecting rod neck of bent axle, when running well with simulated engine, piston and connecting rod assembly is to active force during crankshaft operation.
To sum up, this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, when running well with simulated engine, piston and connecting rod assembly is to active force during crankshaft operation, improve the conformity of crankshaft dynamic balance test and actual working state, can Efficient Evaluation crankshaft rod system running balance in real work more, be conducive to the Efficient Evaluation of the overall performance of motor, enhance the value of crankshaft dynamic balance test.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.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.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (5)
1. a crankshaft dynamic balance test counter weight device, is characterized in that, comprising:
Balancing weight lower cover, its entirety is semicircle, and the top of the rotary side of this balancing weight lower cover adopts designed arc-shaped appearance, and the center of top of this rotary side offers the first slot to make way; The top of the locking side of this balancing weight lower cover adopts planar design, and the center of top of this locking side offers the second slot to make way;
Balancing weight upper cover, it is overall is semicircle, the top of the rotary side of this balancing weight upper cover has the circular arc plug with the first slot to make way adaptation of described balancing weight lower cover, described circular arc plug inserts described first slot to make way, and makes balancing weight upper cover and balancing weight lower cover carry out pivotable connection by the first straight pin through this slot to make way; The top of the locking side of described balancing weight upper cover adopts planar design, and the center of top of this locking side offers the 3rd slot to make way, and described 3rd slot to make way upper end processes bolt mounting plane; And
Latch assembly, it comprises: the second straight pin, loose joint bolt and lock nut, the lower end head of loose joint bolt is arranged in the second slot to make way through described second slot to make way by described second straight pin, the 3rd slot to make way of balancing weight upper cover is stretched in the upper end of described loose joint bolt, and compressed the bolt mounting plane locking of the 3rd slot to make way by locking nut, and then realize the closed of balancing weight upper cover and balancing weight lower cover.
2. crankshaft dynamic balance test counter weight device according to claim 1, is characterized in that, cover the first counterweight hole also offering and run through front and back sides under described balancing weight; Described balancing weight covers the second counterweight hole also offering and run through front and back sides.
3. crankshaft dynamic balance test counter weight device according to claim 2, it is characterized in that, described first counterweight hole is two; Described second counterweight hole is two.
4. crankshaft dynamic balance test counter weight device according to any one of claim 1 to 3, it is characterized in that, the front and back sides of described balancing weight lower cover also has the first pairing positioning convex; The front and back sides of described balancing weight upper cover also has the second pairing positioning convex.
5. crankshaft dynamic balance test counter weight device according to claim 4, it is characterized in that, described balancing weight lower cover and the first straight pin, the second straight pin interference fit, described balancing weight upper cover and the first straight pin, the second straight pin, loose joint bolt all adopt Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453108.1U CN204061717U (en) | 2014-08-12 | 2014-08-12 | Crankshaft dynamic balance test counter weight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453108.1U CN204061717U (en) | 2014-08-12 | 2014-08-12 | Crankshaft dynamic balance test counter weight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061717U true CN204061717U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453108.1U Expired - Fee Related CN204061717U (en) | 2014-08-12 | 2014-08-12 | Crankshaft dynamic balance test counter weight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121324A (en) * | 2014-08-12 | 2014-10-29 | 广西玉柴机器股份有限公司 | Balance weight device for crank shaft dynamic balance test |
| CN106802214A (en) * | 2017-03-31 | 2017-06-06 | 上汽通用五菱汽车股份有限公司 | A kind of double flute bicker for being applied to crankshaft dynamic balancing machine is to positioner |
-
2014
- 2014-08-12 CN CN201420453108.1U patent/CN204061717U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121324A (en) * | 2014-08-12 | 2014-10-29 | 广西玉柴机器股份有限公司 | Balance weight device for crank shaft dynamic balance test |
| CN106802214A (en) * | 2017-03-31 | 2017-06-06 | 上汽通用五菱汽车股份有限公司 | A kind of double flute bicker for being applied to crankshaft dynamic balancing machine is to positioner |
| CN106802214B (en) * | 2017-03-31 | 2023-07-18 | 上汽通用五菱汽车股份有限公司 | Double-slot angular positioning device applied to crankshaft dynamic balancing machine |
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Legal Events
| 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: 20141231 Termination date: 20210812 |