CN104121324A - Balance weight device for crank shaft dynamic balance test - Google Patents
Balance weight device for crank shaft dynamic balance test Download PDFInfo
- Publication number
- CN104121324A CN104121324A CN201410394387.3A CN201410394387A CN104121324A CN 104121324 A CN104121324 A CN 104121324A CN 201410394387 A CN201410394387 A CN 201410394387A CN 104121324 A CN104121324 A CN 104121324A
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- Prior art keywords
- balancing weight
- slot
- make way
- dynamic balance
- lower cover
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a balance weight device for a crank shaft dynamic balance test. The balance weight device comprises a lower balance weight cover, an upper balance weight cover and a locking assembly; the top of the rotation side of the lower balance weight cover is in arc design, and a first receding groove is formed in the middle of the top of the rotation side; the top of the locking side of the lower balance weight cover is in plane design, and a second receding groove is formed in the middle of the top of the locking side; the top of the rotation side of the upper balance weight cover is provided with an arc-shaped plug matched with the first receding groove of the lower balance weight cover, the arc-shaped plug is inserted into the first receding groove, and a first round pin penetrates through the first receding groove to enable the upper balance weight cover and the lower balance weight cover to be connected in a pivoted mode; the locking assembly comprises a second round pin, a loose joint bolt and a locking nut. By means of the balance weight device for the crank shaft dynamic balance test, the consistency of the crank shaft dynamic balance test and the practical working state is improved, and the operation balance of a crank shaft connecting rod system in actual work can be effectively evaluated.
Description
Technical field
The present invention 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 to have completed having departed from actual working state Imitating, lack the effect of piston and connecting rod assembly actual influence, crankshaft dynamic balance test result and actual working state can not be coincide, balance can not Efficient Evaluation crankshaft rod system turns round 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, reduced the value of crankshaft dynamic balance test.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, 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.
Summary of the invention
The object of the present invention is to provide a kind of simple and reasonable crankshaft dynamic balance test counter weight device, this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, active force when piston and connecting rod assembly is to crankshaft operation while running well with simulated engine, improved the conformity of crankshaft dynamic balance test with actual working state, the Efficient Evaluation crankshaft rod system balance that turns round in real work more, the Efficient Evaluation that is conducive to the overall performance of motor, has strengthened the value that crankshaft dynamic balance is tested.
For achieving the above object, the invention provides crankshaft dynamic balance test counter weight device, comprising: balancing weight lower cover, its integral body is semicircle, and the top of the rotation side of this balancing weight lower cover adopts designed arc-shaped appearance, and the center of top of this rotation side is offered 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 is offered the second slot to make way; Balancing weight upper cover, it is whole is semicircle, the top of the rotation 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 the first slot to make way, and through this slot to make way, makes balancing weight upper cover and balancing weight lower cover carry out pivotable connection by the first straight pin; The top of the locking side of described balancing weight upper cover adopts planar design, and the center of top of this locking side is offered the 3rd slot to make way, and described the 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, described the second straight pin is arranged in the lower end head of loose joint bolt in the second slot to make way through described the second slot to make way, the 3rd slot to make way of balancing weight upper cover is stretched in the upper end of described loose joint bolt, and lock by the bolt mounting plane that locking nut compresses the 3rd slot to make way, and then realize the closure of balancing weight upper cover and balancing weight lower cover.
Preferably, in technique scheme, under balancing weight, cover and also offer the first counterweight hole of running through front and back sides; On balancing weight, cover and also offer the second counterweight hole of running through front and back sides.
Preferably, in technique scheme, the first counterweight hole is two; Described the 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 present invention has following beneficial effect: this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, active force when piston and connecting rod assembly is to crankshaft operation while running well with simulated engine, improved the conformity of crankshaft dynamic balance test with actual working state, the Efficient Evaluation crankshaft rod system balance that turns round in real work more, the Efficient Evaluation that is conducive to the overall performance of motor, has strengthened the value that crankshaft dynamic balance is tested.
Accompanying drawing explanation
Fig. 1 is the Unclosing structure schematic diagram of crankshaft dynamic balance test counter weight device of the present invention.
Fig. 2 is the closing structure schematic diagram of crankshaft dynamic balance test counter weight device of the present invention.
Fig. 3 is the main TV structure schematic diagram of balancing weight lower cover of crankshaft dynamic balance test counter weight device of the present invention.
Fig. 4 is the balancing weight lower cover plan structure schematic diagram of crankshaft dynamic balance test counter weight device of the present invention.
Fig. 5 is the main TV structure schematic diagram of balancing weight upper cover of crankshaft dynamic balance test counter weight device of the present invention.
Fig. 6 is the balancing weight upper cover plan structure schematic diagram of crankshaft dynamic balance test counter weight device of the present invention.
Fig. 7 is the use status architecture schematic diagram of crankshaft dynamic balance test counter weight device of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention 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 7, according to the crankshaft dynamic balance test counter weight device of the specific embodiment of the invention, mainly simulate the impact that in real work, piston and connecting rod assembly rotates bent axle, 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, the turn side of balancing weight upper cover 1 and balancing weight lower cover 2 is connected by the first straight pin 3 pivotables, the locking side of the two is controlled switching by latch assembly, to be laid on the connecting rod neck of bent axle, active force when piston and connecting rod assembly is to crankshaft operation while coming simulated engine to run well, the Efficient Evaluation crankshaft rod system balance that turns round in real work more, improved the conformity of crankshaft dynamic balance test with actual working state, the Efficient Evaluation that is conducive to the overall performance of motor.
As shown in Figure 3 and Figure 4, the integral body of balancing weight lower cover 2 is semicircle, and the top (top, right side in figure) of its rotation side 21 adopts designed arc-shaped appearance, and the center of top of this rotation side 21 is offered the first slot to make way 22, facilitates balancing weight upper cover to install and rotation relatively; The top of the locking side 23 of balancing weight lower cover 2 (left side top in figure) adopts planar design, and the center of top of this locking side 23 is offered the second slot to make way 24, facilitates the installation of counter weight device and running relatively; In addition, the rotation side of balancing weight lower cover 2 has the first straight pin mounting hole 25 that is 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 that is 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, on balancing weight lower cover 2, also offer the first counterweight hole 27 of running through front and back sides, preferred, 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 integral body of balancing weight upper cover 1 is semicircle, its rotation side 11 (top, right side in figure) has the circular arc plug 12 with the first slot to make way 22 adaptations of balancing weight lower cover 2, on circular arc plug 12, offer with one heart three cylindrical pin mounting hole 13, by the first straight pin 3, through the first straight pin mounting hole 25, can realize balancing weight upper cover 1 with three cylindrical pin mounting hole 13 respectively and be connected with the pivotable of the turn side of balancing weight lower cover 2; The locking side 14 of balancing weight upper cover 1 (left side top in figure) adopts planar design, and locking side 14 central authorities offer the 3rd slot to make way 15, the three slot to make way 15 upper ends and process bolt mounting plane; In order to meet the self balancing of balancing weight, on balancing weight upper cover 1, also offer the second counterweight hole 16 of running through front and back sides, preferred, 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 second straight pin 41 is arranged in the lower end head of loose joint bolt 42 in the second slot to make way 24 through the second slot to make way 24, 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 lock by the bolt mounting plane that locking nut 43 compresses the 3rd slot to make way 15, and then realize the closure of balancing weight upper cover 1 and balancing weight lower cover 2.Like this, by locking nut 43, control the open and close of counter weight device, to adapt to the dismounting of this device.
During assembling, balancing weight lower cover 2 and the first straight pin 3, the second straight pin 41 interference fit, balancing weight upper cover 1 and the first straight pin 3, the second straight pin 41, loose joint bolt 42 all adopt Spielpassung, guarantee easy for installation, assurance device reliability again.
As shown in Figure 7, during use, first, make the balancing weight upper cover 1 of this crankshaft dynamic balance test counter weight device 6 be pivoted relative to each other and open around the first straight pin 3 with balancing weight lower cover 2, and be stuck on the connecting rod neck of bent axle 5, then by latch assembly, balancing weight upper cover 1 and balancing weight lower cover 2 are locked, realize this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, active force when piston and connecting rod assembly is to crankshaft operation while running well with simulated engine.
To sum up, this crankshaft dynamic balance test counter weight device is laid on the connecting rod neck of bent axle, active force when piston and connecting rod assembly is to crankshaft operation while running well with simulated engine, improved the conformity of crankshaft dynamic balance test with actual working state, the Efficient Evaluation crankshaft rod system balance that turns round in real work more, the Efficient Evaluation that is conducive to the overall performance of motor, has strengthened the value that crankshaft dynamic balance is tested.
The aforementioned description to concrete exemplary of the present invention is for the object with illustration is described.These descriptions not want the present invention 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 invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be 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 integral body is semicircle, and the top of the rotation side of this balancing weight lower cover adopts designed arc-shaped appearance, and the center of top of this rotation side is offered 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 is offered the second slot to make way;
Balancing weight upper cover, it is whole is semicircle, the top of the rotation 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 the first slot to make way, and through this slot to make way, makes balancing weight upper cover and balancing weight lower cover carry out pivotable connection by the first straight pin; The top of the locking side of described balancing weight upper cover adopts planar design, and the center of top of this locking side is offered the 3rd slot to make way, and described the 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, described the second straight pin is arranged in the lower end head of loose joint bolt in the second slot to make way through described the second slot to make way, the 3rd slot to make way of balancing weight upper cover is stretched in the upper end of described loose joint bolt, and lock by the bolt mounting plane that locking nut compresses the 3rd slot to make way, and then realize the closure 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, covers and also offer the first counterweight hole of running through front and back sides under described balancing weight; On described balancing weight, cover and also offer the second counterweight hole of running through front and back sides.
3. crankshaft dynamic balance test counter weight device according to claim 2, is characterized in that, described the first counterweight hole is two; Described the second counterweight hole is two.
4. according to the crankshaft dynamic balance test counter weight device described in any one in claims 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 according to claim 4 is tested counter weight device, 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 |
|---|---|---|---|
| CN201410394387.3A CN104121324A (en) | 2014-08-12 | 2014-08-12 | Balance weight device for crank shaft dynamic balance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394387.3A CN104121324A (en) | 2014-08-12 | 2014-08-12 | Balance weight device for crank shaft dynamic balance test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121324A true CN104121324A (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410394387.3A Pending CN104121324A (en) | 2014-08-12 | 2014-08-12 | Balance weight device for crank shaft dynamic balance test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540532A (en) * | 2019-01-16 | 2019-03-29 | 广西玉柴机器股份有限公司 | A kind of detection device of engine crankshaft |
| CN110068467A (en) * | 2019-05-30 | 2019-07-30 | 广西玉柴机器股份有限公司 | A kind of general loading test counterweight support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123519C1 (en) * | 1991-07-16 | 1992-09-17 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Weight reduction for connecting rod with split big end bearing - provides recess(es) of specified depth and area for rated value attainment |
| CN201306410Y (en) * | 2008-10-30 | 2009-09-09 | 戴建成 | Dynamic-balance counter weight device of asymmetric crank shaft |
| CN201487428U (en) * | 2009-08-19 | 2010-05-26 | 孔国花 | Integrated hoop |
| CN102943841A (en) * | 2012-10-13 | 2013-02-27 | 中国兵器工业集团第七0研究所 | Cross throw crank shaft system of engine |
| CN204061717U (en) * | 2014-08-12 | 2014-12-31 | 广西玉柴机器股份有限公司 | Crankshaft dynamic balance test counter weight device |
-
2014
- 2014-08-12 CN CN201410394387.3A patent/CN104121324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123519C1 (en) * | 1991-07-16 | 1992-09-17 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Weight reduction for connecting rod with split big end bearing - provides recess(es) of specified depth and area for rated value attainment |
| CN201306410Y (en) * | 2008-10-30 | 2009-09-09 | 戴建成 | Dynamic-balance counter weight device of asymmetric crank shaft |
| CN201487428U (en) * | 2009-08-19 | 2010-05-26 | 孔国花 | Integrated hoop |
| CN102943841A (en) * | 2012-10-13 | 2013-02-27 | 中国兵器工业集团第七0研究所 | Cross throw crank shaft system of engine |
| CN204061717U (en) * | 2014-08-12 | 2014-12-31 | 广西玉柴机器股份有限公司 | Crankshaft dynamic balance test counter weight device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540532A (en) * | 2019-01-16 | 2019-03-29 | 广西玉柴机器股份有限公司 | A kind of detection device of engine crankshaft |
| CN109540532B (en) * | 2019-01-16 | 2023-10-27 | 广西玉柴机器股份有限公司 | Detection device for engine crankshaft |
| CN110068467A (en) * | 2019-05-30 | 2019-07-30 | 广西玉柴机器股份有限公司 | A kind of general loading test counterweight support |
| CN110068467B (en) * | 2019-05-30 | 2023-12-19 | 广西玉柴机器股份有限公司 | Universal loading test counterweight bracket |
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Application publication date: 20141029 |