CN206190505U - Adjustable length of stroke crank two -link structure - Google Patents
Adjustable length of stroke crank two -link structure Download PDFInfo
- Publication number
- CN206190505U CN206190505U CN201621260544.2U CN201621260544U CN206190505U CN 206190505 U CN206190505 U CN 206190505U CN 201621260544 U CN201621260544 U CN 201621260544U CN 206190505 U CN206190505 U CN 206190505U
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- China
- Prior art keywords
- skewed slot
- eccentric block
- axle
- chute
- connecting rod
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides an adjustable length of stroke crank two -link structure, an one of which drive unit can drive two pump heads simultaneously, and the length of stroke of pump head can to carry out fast speed adjusting as required whole, reduced the cost of manufacture. It is including perpendicular to the chute axle of arranging, the chute axle is provided with two symmetrical arrangement's perpendicular, be provided with the indent chute that top -down arranged on one of them perpendicular, the indent chute includes the interior inclined upper segment chute of top -down, the outside inclined lower extreme chute of top -down, the upper segment chute, the other cover of chute the shaft position that the lower extreme chute corresponded punishment is equipped with the eccentric block, lower eccentric block, go up the eccentric block, waist -shaped slot's in the eccentric block length is greater than the width of chute axle down, go up the eccentric block, the periphery of eccentric block is the disc down, go up the connecting rod, input difference suit in the last eccentric block of lower connecting rod, the periphery of lower eccentric block, the chute axle is corresponding to last eccentric block, space endotheca between the eccentric block is equipped with the worm wheel down.
Description
Technical field
The utility model is related to the technical field of brace and connecting rod framework, specially a kind of adjustable stroke length crank doubly-linked
Bar structure.
Background technology
Reciprocating machine, generally provides reciprocating motion using toggle.Bent axle is divided into the song of fixed stroke length
Axle, such as crankshaft of diesel engine；And the built-up crankshaft of adjustable stroke length, the bent axle with sliding groove structure of such as measuring pump
Connecting rod.Driver element can only drive a pump head to work in the prior art, when needing to drive multiple pump heads to work, it is necessary to
Multiple driver elements are set, and it causes that the complex structure of driver element, cost of manufacture are high.
The content of the invention
Regarding to the issue above, the utility model provides a kind of adjustable stroke length crank-double-connecting-rod structure, one
Driver element can simultaneously drive two pump heads, and the length of stroke of pump head can quickly to be adjusted as needed, reduce making
Cost.
A kind of adjustable stroke length crank-double-connecting-rod structure, it is characterised in that：It includes the skewed slot axle being vertically arranged,
The skewed slot axle is provided with two vertical planes being arranged symmetrically, and arrange from top to bottom interior is provided with one of them described vertical plane
Concave groove, and the indent skewed slot includes interior oblique epimere skewed slot, from top to bottom outside oblique lower end skewed slot from top to bottom, it is described on
Eccentric block, lower eccentric block are respectively installed with the position of the skewed slot axle corresponding to section skewed slot, lower end skewed slot, it is described inclined
The length of the waist type groove in heart block, lower eccentric block is more than the width of the skewed slot axle, the upper eccentric block, the periphery of lower eccentric block
It is disc, upper connecting rod, the input of lower connecting rod are set with the periphery of the upper eccentric block, lower eccentric block, institute
State and worm gear is set with the space that skewed slot axle corresponds between upper eccentric block, lower eccentric block, the outer shroud tooth engagement of the worm gear connects
The geared worm of outside is connect, the upper connecting rod, the output end of lower connecting rod connect the pump head of correspondence position, the skewed slot respectively
The bottom of axle corresponds to and is plugged in lower guide cylinder, and it is corresponding that the inner of sliding pin extends through the upper eccentric block, lower eccentric block
It is flush-mounted in after rectangle endoporus in the upper end skewed slot of correspondence position, lower end skewed slot, the input of the upper connecting rod, upper eccentric block branch
Hold in the upper surface of the turbine, the input of the lower connecting rod, lower eccentric block are supported on the upper surface of the lower guide cylinder,
The top or bottom of the skewed slot axle be provided with it is vertical to driving structure, it is described it is vertical to driving structure drive skewed slot axle rise or
Decline.
It is further characterized by：The vertical top that the skewed slot axle is located to driving structure, the skewed slot axle
Top is fixed with the inner ring of rolling bearing, and the outer ring of the rolling bearing is installed in the bottom centre position of regulation screw mandrel, described
Adjust the fixed swivel nut that the outer shroud screw thread connection of screw mandrel is vertically arranged；
Driving handle is fixed with the top of the regulation screw mandrel；
When the height of the lower guide cylinder ensures that skewed slot axle rises, the bottom of the skewed slot axle is without departing from the lower guiding
Cylinder；
Horizontal plane where the epimere skewed slot, central connection point of the lower end skewed slot on both is respectively symmetrically arrangement.
After technology of the present utility model, the company of being correspondingly arranged on respectively on the epimere skewed slot of skewed slot axle, lower end skewed slot
The input of extension bar, the input of lower connecting rod, geared worm drive worm gear wheel, worm gear to drive skewed slot axle to rotate, skewed slot axle
Eccentric block, lower eccentric block are rotated in drive, and upper eccentric block, the eccentric motion of lower eccentric block drive upper connecting rod, lower connection respectively
The realization of the pump head that bar output end is connected is moved back and forth, when vertically driving skewed slot axle to rise or fall to driving structure, upper company
Extension bar, the input of lower connecting rod are changed relative to the vertical of skewed slot axle to position so that skewed slot axle is matched somebody with somebody with eccentric block
The eccentric distance e generation changes that position produces are closed, and then causes that the length of stroke of pump head can be adjusted quickly as needed；It is comprehensive
On, one driver element can simultaneously drive two pump heads, and the length of stroke of pump head can quickly to be adjusted as needed, drop
Low cost of manufacture.
Brief description of the drawings
Fig. 1 is main view figure structure schematic representation of the present utility model (skewed slot axle position is in highest point)；
Fig. 2 cuts open structural representation for the A-A of Fig. 1；
Fig. 3 cuts open structural representation for the A-A of Fig. 1；
Fig. 4 is main view figure structure schematic representation of the present utility model (skewed slot axle position is in lowest part)；
Title in figure corresponding to sequence number is as follows：
Skewed slot axle 1, indent skewed slot 2, epimere skewed slot 3, lower end skewed slot 4, upper eccentric block 5, lower eccentric block 6, the upper bias
Block 5, lower eccentric block 6, waist type groove 7, upper connecting rod 8, lower connecting rod 9, input 10, worm gear 11, geared worm 12, lower guide cylinder
14th, sliding pin 15, rectangle endoporus 16, mounting seat 17, rolling bearing 18, regulation screw mandrel 19, fixed swivel nut 20, driving handle 21.
Specific embodiment
A kind of adjustable stroke length crank-double-connecting-rod structure, is shown in Fig. 1~Fig. 4：It includes the skewed slot axle being vertically arranged
1, skewed slot axle 1 is provided with two vertical planes being arranged symmetrically, be provided with one of vertical plane arrange from top to bottom in concave
Groove 2, indent skewed slot 2 includes interior oblique epimere skewed slot 3, from top to bottom outer oblique lower end skewed slot 4 from top to bottom, epimere skewed slot 3, under
Eccentric block 5, lower eccentric block 6, upper eccentric block 5, lower bias are respectively installed with the position of the skewed slot axle 1 corresponding to the skewed slot 4 of end
More than the width W of skewed slot axle 1, upper eccentric block 5, the periphery of lower eccentric block 6 are disc, upper company to the length L of the waist type groove 7 in block 6
Extension bar 8, the input 10 of lower connecting rod 9 are set with the periphery of upper eccentric block 5, lower eccentric block 6, the correspondence of skewed slot axle 1
Worm gear 11, the biography outside the outer shroud tooth engagement connection of worm gear 11 are set with space between upper eccentric block 5, lower eccentric block 6
Dynamic worm screw 12, the pump head that upper connecting rod 8, the output end of lower connecting rod 9 connect correspondence position respectively (is not drawn into figure, belongs to existing
Have mature structure), the bottom of skewed slot axle 1 corresponds to and is plugged in lower guide cylinder 14, and the inner of sliding pin 15 extends through bias
It is flush-mounted in the upper end skewed slot 3 of correspondence position, lower end skewed slot 4 after the corresponding rectangle endoporus 16 of block 5, lower eccentric block 6, upper connecting rod
8 input 10, upper eccentric block 5 are supported on the upper surface of turbine 11, and the input 10 of lower connecting rod 9, lower eccentric block 6 are supported on
The upper surface of lower guide cylinder 14 so that upper connecting rod 8, lower connecting rod 9 are fixed relative to the vertical of mounting seat 17 to position, skewed slot
The top or bottom of axle 1 are provided with vertically to driving structure, vertically drive skewed slot axle 1 to rise or fall to driving structure.
The vertical top that skewed slot axle 1 is located to driving structure, 1 top of skewed slot axle is fixed with the inner ring of rolling bearing 18,
The outer ring of rolling bearing 18 is installed in the bottom centre position of regulation screw mandrel 19, and the outer shroud screw thread connection for adjusting screw mandrel 19 is hung down
The straight fixed swivel nut 20 to arrangement；
The top for adjusting screw mandrel 19 is fixed with driving handle 21；
When the height of lower guide cylinder 14 ensures that skewed slot axle rises, the bottom of skewed slot axle 1 is without departing from lower guide cylinder；
Horizontal plane where the central connection point of epimere skewed slot 3, lower end skewed slot 4 on both is respectively symmetrically arrangement.
Its operation principle is as follows：Upper connecting rod 8 is correspondingly arranged on respectively on the epimere skewed slot 3 of skewed slot axle 1, lower end skewed slot 4
Input, the input 10 of lower connecting rod 9, geared worm 12 drives worm gear 11 to rotate, and worm gear 11 drives skewed slot axle 1 to rotate,
Skewed slot axle 1 drives upper eccentric block 5, lower eccentric block 6 to rotate, upper eccentric block 5, the eccentric motion company of drive respectively of lower eccentric block 6
The realization of the pump head that extension bar 8, the output end of lower connecting rod 9 are connected is moved back and forth, when driving handle 21 drive regulation screw mandrel 19 with
On the basis of fixed swivel nut 20 it is vertical to action when, skewed slot axle is driven and rises or falls, due to the presence of sliding pin 15, upper connection
Bar, the input of lower connecting rod change relative to the vertical of skewed slot axle to position so that the cooperation of skewed slot axle and eccentric block
The eccentric distance e that position produces produces change, and then causes that the length of stroke of pump head can be adjusted quickly as needed.
Total in specific implementation is vertical, and the structure horizontal can also be arranged.
Specific embodiment of the utility model has been described in detail above, but content is only what the utility model was created
Preferred embodiment, it is impossible to be considered as the practical range for limiting the utility model creation.All creation according to the utility model is applied
Impartial change that scope is made with improve etc., all should still belong within this patent covering scope.
Claims (5)
1. a kind of adjustable stroke length crank-double-connecting-rod structure, it is characterised in that：It includes the skewed slot axle being vertically arranged, institute
State skewed slot axle and be provided with two vertical planes being arranged symmetrically, the indent arranged from top to bottom is provided with one of them described vertical plane
Skewed slot, the indent skewed slot includes interior oblique epimere skewed slot, lower end skewed slot outwards oblique from top to bottom, the epimere from top to bottom
Eccentric block, lower eccentric block, the upper bias are respectively installed with the position of the skewed slot axle corresponding to skewed slot, lower end skewed slot
More than the width of the skewed slot axle, the upper eccentric block, the periphery of lower eccentric block are the length of the waist type groove in block, lower eccentric block
Disc, upper connecting rod, the input of lower connecting rod are set with the periphery of the upper eccentric block, lower eccentric block, described
Skewed slot axle is connected corresponding to worm gear, the outer shroud tooth engagement of the worm gear is set with the space between upper eccentric block, lower eccentric block
Outside geared worm, the upper connecting rod, the output end of lower connecting rod connect the pump head of correspondence position, the skewed slot axle respectively
Bottom correspond to be plugged in lower guide cylinder, the inner of sliding pin extends through the upper eccentric block, the corresponding square of lower eccentric block
It is flush-mounted in after shape endoporus in the upper end skewed slot of correspondence position, lower end skewed slot, the input of the upper connecting rod, the supporting of upper eccentric block
In the upper surface of the worm gear, the input of the lower connecting rod, lower eccentric block are supported on the upper surface of the lower guide cylinder, institute
State skewed slot axle top or bottom be provided with it is vertical to driving structure, it is described it is vertical to driving structure drive skewed slot axle rise or under
Drop.
2. a kind of adjustable stroke length crank-double-connecting-rod structure as claimed in claim 1, it is characterised in that：It is described it is vertical to
Driving structure is located at the top of the skewed slot axle, and the inner ring of rolling bearing, the axis of rolling are fixed with the top of the skewed slot axle
The outer ring held is installed in the bottom centre position of regulation screw mandrel, and the outer shroud screw thread connection of the regulation screw mandrel is vertically arranged
Fixed swivel nut.
3. a kind of adjustable stroke length crank-double-connecting-rod structure as claimed in claim 2, it is characterised in that：The regulation silk
Driving handle is fixed with the top of bar.
4. a kind of adjustable stroke length crank-double-connecting-rod structure as claimed in claim 1, it is characterised in that：The lower guiding
When the height of cylinder ensures that skewed slot axle rises, the bottom of the skewed slot axle is without departing from the lower guide cylinder.
5. a kind of adjustable stroke length crank-double-connecting-rod structure as claimed in claim 1, it is characterised in that：The epimere is oblique
Horizontal plane where the central connection point of groove, lower end skewed slot on both is respectively symmetrically arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260544.2U CN206190505U (en) | 2016-11-21 | 2016-11-21 | Adjustable length of stroke crank two -link structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260544.2U CN206190505U (en) | 2016-11-21 | 2016-11-21 | Adjustable length of stroke crank two -link structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190505U true CN206190505U (en) | 2017-05-24 |
Family
ID=58724287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621260544.2U Active CN206190505U (en) | 2016-11-21 | 2016-11-21 | Adjustable length of stroke crank two -link structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875231A (en) * | 2022-10-09 | 2023-03-31 | 山东泰展机电科技股份有限公司 | Internal circulation air pump with brushless motor |
-
2016
- 2016-11-21 CN CN201621260544.2U patent/CN206190505U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875231A (en) * | 2022-10-09 | 2023-03-31 | 山东泰展机电科技股份有限公司 | Internal circulation air pump with brushless motor |
| CN115875231B (en) * | 2022-10-09 | 2023-10-24 | 山东泰展机电科技股份有限公司 | Internal circulation air pump with brushless motor |
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