CN205896072U - Two eccentric crank link meanss - Google Patents
Two eccentric crank link meanss Download PDFInfo
- Publication number
- CN205896072U CN205896072U CN201620837842.7U CN201620837842U CN205896072U CN 205896072 U CN205896072 U CN 205896072U CN 201620837842 U CN201620837842 U CN 201620837842U CN 205896072 U CN205896072 U CN 205896072U
- Authority
- CN
- China
- Prior art keywords
- eccentric
- connecting rod
- crank
- central axis
- eccentric wheel
- 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
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Abstract
The utility model discloses a two eccentric crank link meanss for convert the one -way reciprocal rotary motion of crank connecting rod structure into two -way coaxial reciprocal linear motion, it includes the bent axle body, the bent axle body comprises spindle nose, transition axle, crank, has off -centre apart from e1 between the the central axis of articulate the central axis and spindle nose, constitutes the eccentric structure of the first order, the articulate outside is connected with the eccentric wheel through first bearing, has off -centre apart from e2 and e2 between the the central axis of articulate the central axis and eccentric wheel > e1, constitute the eccentric structure in the second level, the eccentric wheel is connected through the coaxial connecting rod of second bearing and double -end. The utility model discloses the motion of twice level is carried out leading from top to bottom to well this trunk circling of bent axle a week, the coaxial connecting rod of double -end between the slide rail, make the double increase of plant operation efficiency, the bent axle body is in that to rotate the in -process eccentric wheel unanimous to the produced impact force size of equipment center, the gram strengthened equipment stability can, prolonged the life of equipment.
Description
Technical field
The utility model is related to petroleum drilling and mining mud pump equipment technical field, and specifically a kind of pair of eccentric mechanism is even
Lever apparatus, for being converted to bidirectional coaxial linear reciprocating motion by unidirectional for brace and connecting rod framework reciprocal rotary motion.
Background technology
Toggle in petroleum drilling and mining slush pump is dynamic by machinery with its reliable and stable, simple and effective motion mode
Power is converted to high pressure hydrodynamic, plays, in petroleum drilling and mining industry, the effect that can not be substituted, uses till today always.But it is this
There is its inborn defect in mechanism: crank rotation is turned around, and connecting rod can only do and once move back and forth, and effect is single, and efficiency is low；Bent
The impact force unbalance to crankshaft center for the height producing during handle rotary motion, causes the vibrations of equipment, impact equipment can
By property；In order to buffer unbalanced impulsive force, the two ends of coaxial connecting rod are arranged to the inconsistent concentric reducer of length, between concentric reducer
Distance larger, the overall volume of parts cannot reduce further, causes equipment volume huge, and transport, installation cost are higher.
Utility model content
The purpose of this utility model is to provide a kind of pair of eccentric mechanism linkage, is existed with solving existing toggle
The crank rotation connecting rod that turns around can only do and once moves back and forth, and the height producing during crank rotary motion produces to equipment center
The unbalanced problem of impulsive force.
For solving above-mentioned technical problem, technical solution adopted in the utility model is:
A kind of pair of eccentric mechanism linkage, two-way for being converted to unidirectional for brace and connecting rod framework reciprocal rotary motion
Coaxial linear reciprocating motion, it includes crankshaft body, and described crankshaft body is by being arranged on the spindle nose at two ends, connect the transition of spindle nose
, between the central axis of crank and the central axis of spindle nose, there is eccentric distance e in axle, the crank being arranged on transition axis composition1, structure
Become first order eccentric structure；The outside of crank is connected with eccentric wheel by clutch shaft bearing, the central axis of crank and eccentric wheel
Central axis between there is eccentric distance e2, and e2＞ e1, constitute second level eccentric structure；Eccentric wheel pass through second bearing with double
The coaxial connecting rod of head is connected.
Preferably, the coaxial connecting rod of described double end is arranged between upper and lower directive slide track, the upper outer surface of the coaxial connecting rod of double end,
Outer lower face surface is contacted with the inner surface of upper and lower directive slide track respectively.
Preferably, the length of two opposite connecting rods of the outside of the coaxial connecting rod of described double end is identical.
The utility model during fabrication, processes spindle nose, mistake according to design parameter on the crankshaft body blank having forged
Cross axle and crank, by clutch shaft bearing, eccentric wheel is arranged on crank, then by second bearing, coaxial for double end connecting rod is installed
In the outside of eccentric wheel, the upper outer surface of the coaxial connecting rod of double end, outer lower face surface is made to connect with the inwall of upper and lower directive slide track respectively
Touch, and can slide in upper and lower directive slide track.
When utility model works, crankshaft body drive under dynamic action crank start rotate, when crank rotate to
During peak, it is arranged on the eccentric wheel outside crank and not yet reaches peak, now crank rotates simultaneously around the axial line of spindle nose
Begin to decline, the thrust band movable eccentric wheel of generation does horizontal displacement, be arranged on the coaxial connecting rod of double end outside eccentric wheel in bias
Moved horizontally between upper and lower directive slide track under the drive of wheel；When crank rotates to minimum point, eccentric wheel not yet reaches
Minimum point, now crank around spindle nose axial line rotation begin to ramp up, the thrust band movable eccentric wheel of generation does horizontal position again
Move, the coaxial connecting rod of double end is moved horizontally under the drive of eccentric wheel between upper and lower directive slide track again；Crankshaft body revolves
Circle, the coaxial connecting rod of double end carries out horizontal movement twice between upper and lower directive slide track.With the continuous rotation of crankshaft body,
The coaxial connecting rod of double end just can realize linear reciprocating motion between upper and lower directive slide track.
The beneficial effects of the utility model are:
(1) the utility model is by between the first order eccentric structure between crankshaft body and crank, bent axle and eccentric wheel
Second level eccentric structure setting so that crankshaft body rotates a circle, the coaxial connecting rod of double end enters between upper and lower directive slide track
Row horizontal movement twice, makes the double increase of service efficiency of equipment；
(2) the utility model in use, after crank rotary motion to peak, minimum point so as to outside inclined
Heart wheel starts to do horizontal displacement, in the same size to impulsive force produced by equipment center, overcomes crank rotation in prior art
The unbalanced impulsive force that the height producing during motion produces to equipment center, strengthens the stability of equipment, extends
The service life of equipment；
(3) due to the setting of two grades of eccentric structures of the utility model, two opposite outside the coaxial connecting rod of double end connect
The length of bar is identical, can effectively reduce the volume of equipment, reduces manufacture, cost of transportation.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of crankshaft body in Fig. 1；
Fig. 3 is the attachment structure schematic diagram of crank and eccentric wheel in Fig. 1；
Fig. 4 is the structural representation of the coaxial connecting rod of double end in Fig. 1；
In figure: 1, crankshaft body, 2, clutch shaft bearing, 3, eccentric wheel, 4, second bearing, 5, the coaxial connecting rod of double end, 6, up and down
Directive slide track, 7, spindle nose, 8, transition axis, 9, crank, 501, upper outer surface, 502, outer lower face surface, 503, in the coaxial connecting rod of double end
Wall.
Specific embodiment
The utility model is described in more detail below in conjunction with the accompanying drawings.
A kind of pair of eccentric mechanism linkage as shown in Figures 1 to 4, for by unidirectional for brace and connecting rod framework reciprocal rotation
Transhipment is dynamic to be converted to bidirectional coaxial linear reciprocating motion, and it includes crankshaft body 1, and crankshaft body 1 is by the spindle nose being arranged on two ends
7th, connect the transition axis 8 of spindle nose 7, the crank 9 being arranged on transition axis 8 forms, the center of the central axis of crank 9 and spindle nose 7
There is eccentric distance e between axis1, constitute first order eccentric structure；The outside of crank 9 is connected with eccentric wheel 3 by clutch shaft bearing 2
Connect, between the central axis of the central axis of crank 9 and eccentric wheel 3, there is eccentric distance e2, and e2＞ e1, constitute the second level eccentric
Structure；Eccentric wheel 3 is connected by second bearing 4 connecting rod 5 coaxial with double end, the inwall 503 of the coaxial connecting rod of double end and the second axle
Hold 4 to contact.
The coaxial connecting rod of double end 5 is arranged between upper and lower directive slide track 6, the upper outer surface 501 of the coaxial connecting rod of double end 5, lower outer
Surface 502 is contacted with the inner surface of upper and lower directive slide track 6 respectively.Two that the outside of the coaxial connecting rod of double end 5 is opposite connect
The length of bar is identical.
When utility model works, crankshaft body 1 drives crank 9 to start to rotate, when crank 9 rotates under dynamic action
During to peak, the eccentric wheel 3 being arranged on crank 9 outside not yet reaches peak, and now crank 9 is around the axial line of spindle nose 7
Rotate and decline, the thrust band movable eccentric wheel 3 of generation does horizontal displacement, the coaxial connecting rod of double end 5 being arranged on eccentric wheel 3 outside exists
Moved horizontally between upper and lower directive slide track 6 under the drive of eccentric wheel 3；When crank 9 rotates to minimum point, eccentric wheel 3
Not yet reach minimum point, now crank 9 begins to ramp up around the axial line rotation of spindle nose 7, and the thrust band movable eccentric wheel 3 of generation is again
Secondary do horizontal displacement, the coaxial connecting rod of double end 5 carries out level shifting under the drive of eccentric wheel 3 between upper and lower directive slide track 6 again
Dynamic；Crankshaft body 1 rotates a circle, and the coaxial connecting rod of double end 5 carries out horizontal movement twice between upper and lower directive slide track 6.With song
The continuous rotation of shaft body 1, the coaxial connecting rod of double end 5 just can realize linear reciprocating motion between upper and lower directive slide track 6.
The utility model is by the between first order eccentric structure between crankshaft body and crank, bent axle and eccentric wheel
So that crankshaft body rotates a circle, the coaxial connecting rod of double end carries out two between upper and lower directive slide track for the setting of two grades of eccentric structures
Sub-level moves, and makes the double increase of service efficiency of equipment；Crankshaft body eccentric wheel in rotation process is produced to equipment center
Raw impulsive force is in the same size, gram strengthens the stability of equipment, extends the service life of equipment；Outside the coaxial connecting rod of double end
The length of two opposite connecting rods of side is identical, can effectively reduce the volume of equipment, reduces manufacture, cost of transportation.
Claims (3)
1. a kind of pair of eccentric mechanism linkage, two-way same for being converted to unidirectional for brace and connecting rod framework reciprocal rotary motion
Axle linear reciprocating motion, it include crankshaft body (1) it is characterised in that: described crankshaft body (1) is by the spindle nose being arranged on two ends
(7), connect spindle nose (7) transition axis (8), be arranged on transition axis (8) crank (9) composition, the central axis of crank (9) with
There is eccentric distance e between the central axis of spindle nose (7)1, constitute first order eccentric structure；First axle is passed through in the outside of crank (9)
Hold (2) to be connected with eccentric wheel (3), between the central axis of the central axis of crank (9) and eccentric wheel (3), there is eccentric throw
e2, and e2＞ e1, constitute second level eccentric structure；Eccentric wheel (3) is connected by second bearing (4) connecting rod coaxial with double end (5)
Connect.
2. according to claim 1 pair of eccentric mechanism linkage it is characterised in that: described double end coaxial connecting rod (5) peace
Be contained between upper and lower directive slide track (6), the upper outer surface (501) of the coaxial connecting rod of double end (5), outer lower face surface (502) respectively with upper
The inner surface of lower directive slide track (6) contacts.
3. according to claim 2 pair of eccentric mechanism linkage it is characterised in that: the coaxial connecting rod (5) of described double end
The length of two opposite connecting rods of outside is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837842.7U CN205896072U (en) | 2016-08-04 | 2016-08-04 | Two eccentric crank link meanss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837842.7U CN205896072U (en) | 2016-08-04 | 2016-08-04 | Two eccentric crank link meanss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205896072U true CN205896072U (en) | 2017-01-18 |
Family
ID=57782749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620837842.7U Expired - Fee Related CN205896072U (en) | 2016-08-04 | 2016-08-04 | Two eccentric crank link meanss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205896072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051089A (en) * | 2016-08-04 | 2016-10-26 | 兰州兰石集团有限公司 | Dual eccentric crank connecting rod device |
| CN108914394A (en) * | 2018-09-21 | 2018-11-30 | 王永祥 | Interior centering type ultrahigh speed needing machine |
-
2016
- 2016-08-04 CN CN201620837842.7U patent/CN205896072U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051089A (en) * | 2016-08-04 | 2016-10-26 | 兰州兰石集团有限公司 | Dual eccentric crank connecting rod device |
| CN108914394A (en) * | 2018-09-21 | 2018-11-30 | 王永祥 | Interior centering type ultrahigh speed needing 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: 20170118 Termination date: 20190804 |