CN104176686A - Connecting rod lifting and overturning device based on differential screw transmission and rocker slider transmission - Google Patents
Connecting rod lifting and overturning device based on differential screw transmission and rocker slider transmission Download PDFInfo
- Publication number
- CN104176686A CN104176686A CN201410357512.3A CN201410357512A CN104176686A CN 104176686 A CN104176686 A CN 104176686A CN 201410357512 A CN201410357512 A CN 201410357512A CN 104176686 A CN104176686 A CN 104176686A
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- connecting rod
- differential screw
- lifting
- bracing frame
- transmission
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Abstract
The invention relates to a connecting rod lifting and overturning device based on differential screw transmission and rocker slider transmission. The device is characterized in that the center of a differential screw penetrates through a lead screw axle base, two ends of the differential screw are matched and assembled with a left bearing assembly and a right bearing assembly, and a left thread section and a right thread section of the differential screw are screwed into a left drive nut and a right drive nut respectively to form a differential screw mechanism; upper table-boards of lifting slide guide rails and lower table-boards of sliders are matched and assembled; shaft assemblies are connected with the sliders and an overturning frame, one end of each overturning connecting rod is fixed with the overturning frame, and the other end is fixed or separated from with support frames through fixing pin shafts and pin clamp plates; connecting rods, the sliders and the support frames constitute a rocker slider mechanism I, and rockers swing to drive the sliders to move up and down along the lifting slide guide rails; the sliders, the overturning frame, the overturning connecting rods and the support frames constitute a rocker slider mechanism II, and the sliders linearly move up and down to drive the overturning frame to perform overturning movement. The connecting rod lifting and overturning device based on differential screw transmission and rocker slider transmission has lifting and overturning functions simultaneously, is more compact in structure, convenient to operate and good in stability, and saves confined space.
Description
Technical field
The invention belongs to precision optical machinery field, particularly a kind of connecting rod lifting and turning device based on differential screw transmission and rocker slider transmission.
Background technology
Lifting at present and turning device are realized respectively lifting and turn over function by different physical constructions mostly, realizing each function needs to give an active force, the problem such as therefore have that complex structure, poor stability, rising or falling speed are slow, operation inconvenience, manufacturing cost are high.And in finite space, the device that utilizes differential principle and the plane integrated lifting of four rod principles and upset two kinds of functions and putting in place to stablize self-locking has no report.
Summary of the invention
In order to solve the problem of prior art, the object of the invention is to seek a kind of fast lifting and upset simultaneously and put in place and stablize the device of self-locking.
For reaching described object, the invention provides a kind of connecting rod lifting and turning device based on differential screw transmission and rocker slider transmission, described device solves the technical scheme that its technical matters adopts and comprises: bracing frame, feeding handwheel, differential screw arbor, screw mandrel axle bed, left drive nut, right drive nut, flange bearing pin, bearing assembly, push rod, cylindrical positioning pins, rocking bar, connecting rod, lifting slide rail, slide block, Shaft assembly, turning rack, upset connecting rod, fixed pin shaft, pin card plate, limiting stopper, pitch regulation strut, adjusting screw(rod), wherein:
Screw mandrel axle bed, two of left and right bearing assembly are all fixed on bracing frame, and feeding handwheel one end connects differential screw arbor its right end face.
Differential screw arbor center is through screw mandrel axle bed, and differential screw arbor two ends coordinates assembling with two of left and right bearing assembly, and two sections of the left and right screw thread of differential screw arbor screws in respectively left drive nut, right drive nut.
Two push rods in left and right are separately fixed on left drive nut, right drive nut with flange bearing pin, and push rod and rocking bar, rocking bar and bracing frame, rocking bar and connecting rod are fixed with cylindrical positioning pins respectively.
Two lifting slide rails be arranged on respectively the bracing frame left and right sides and position identical, slide block is parallel with the bottom basal plane of bracing frame with the hinge-point line QQ ' of connecting rod.The upper table surface of lifting slide rail coordinates assembling with the following table of slide block.Shaft assembly connection sliding block and turning rack, upset connecting rod one end and turning rack are fixed, and the other end and bracing frame are fixed or free with fixed pin shaft and pin card plate.
Two limiting stoppers are fixed on two of bracing frame, and two of front and back pitch regulation strut is separately fixed at former and later two end faces of slide block, and adjusting screw(rod) screws in the center screw of pitch regulation strut, the forward and backward Surface Contact of adjusting screw(rod) front end face and turning rack.
Principle of the present invention is: by differential screw transmission and rocker slider motion implement device fast lifting and upset simultaneously.
The present invention compared with prior art tool has the following advantages:
1. a covering device is realized two kinds of functions of lifting and upset simultaneously, and more compact structure, saves finite space;
2. device lifting and flip-flop movement only need shake same feeding handwheel, easy to operate;
3. use differential screw mechanism, carry out fast lifting and flip-flop movement.
Device motion put in place after auto lock, good stability.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention constructionals drawing;
Fig. 2 is dipping and heaving principle schematic of the present invention;
Fig. 3 is flip-flop movement principle schematic of the present invention;
Fig. 4 is flip-flop movement constructional drawing of the present invention;
Fig. 5 is fixed pin shaft of the present invention and pin card plate assembling schematic diagram.
The label declaration of parts in figure:
Bracing frame, 2. feeding handwheel, 3. differential screw arbor,
Screw mandrel axle bed, 5. left drive nut, 5 '. right drive nut,
Flange bearing pin, 7. bearing assembly, 8. push rod,
Cylindrical positioning pins, 10. rocking bar, 11. connecting rods,
12. lifting slide rails, 13. slide blocks, 14. Shaft assemblies,
15. turning racks,
15-1 front surface, 15-2 rear surface,
16. upset connecting rods, 17. fixed pin shafts, 18. pin card plates,
19. limiting stoppers, 20. pitch regulation struts, 21. adjusting screw(rod)s
Left section of screw thread of A-differential screw arbor; Right section of screw thread of B-differential screw arbor;
P-left rocking bar fixed pivot; P '-right rocking bar fixed pivot;
Q-left slider and left connecting rod hinge point; Q '-right slide block and right connecting rod hinge-point;
M-bracing frame bottom basal plane; M-bracing frame sidepiece basal plane;
R-turning rack and upset connecting rod hinge point;
The path of motion of curve α β-turning rack and upset connecting rod hinge point R.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
As Fig. 1-Fig. 5 illustrates the device of connecting rod lifting of the present invention and upset, it is characterized in that it comprise bracing frame 1, feeding handwheel 2, differential screw arbor 3, screw mandrel axle bed 4, left drive nut 5, right drive nut 5 ', flange bearing pin 6, bearing assembly 7, push rod 8, cylindrical positioning pins 9, rocking bar 10, connecting rod 11, lifting slide rail 12, slide block 13, Shaft assembly 14, turning rack 15, upset connecting rod 16, fixed pin shaft 17, pin card plate 18, limiting stopper 19, pitch regulation strut 20, adjusting screw(rod) 21, wherein:
Screw mandrel axle bed 4, two of left and right bearing assembly 7 are all fixed on bracing frame 1, and feeding handwheel 2 one end connect differential screw arbor 3 its right end face.
Differential screw arbor 3 centers are through screw mandrel axle bed 4, and differential screw arbor 3 two ends coordinate assembling with two of left and right bearing assembly 7, two sections of left and right screw thread A, the B of differential screw arbor 3 screw in respectively left drive nut 5, right drive nut 5 '.
Two of left and right push rod 8 use flange bearing pins 6 are separately fixed at left drive nut 5, right drive nut 5 ' upper, and push rod 8 is fixing with cylindrical positioning pins 9 respectively with rocking bar 10, rocking bar 10 and bracing frame 1, rocking bar 10 and connecting rod 11.
Two lifting slide rails 12 be arranged on respectively bracing frame 1 left and right sides and position identical, line QQ ' is parallel with the bottom basal plane M of bracing frame 1.The upper table surface of lifting slide rail 12 coordinates assembling with the following table of slide block 13.Shaft assembly 14 connection sliding blocks 13 and turning rack 15, upset connecting rod 16 one end and turning rack 15 are fixing, and the other end and bracing frame are fixed or free with fixed pin shaft 17 and pin card plate 18.
Two limiting stoppers 19 are fixed on two of bracing frame 1, the two pitch regulation struts 20 in front and back are separately fixed at slide block 13 former and later two end faces, adjusting screw(rod) 21 screws in the center screw of pitch regulation strut 20, and adjusting screw(rod) 21 front end faces contact with front surface 15-1, the rear surface 15-2 of turning rack 15.
Described bracing frame 1 is weldment, as the stationary member of device lifting and flip-flop movement, and the stationarity of assurance device motion.
Described differential screw arbor 3 and left drive nut 5 and right drive nut 5 ' composition differential screw mechanism.The pitch of differential screw arbor 3 left and right two sections of screw thread A, B is respectively P
1, P
2, P
1=P
2, rotation direction is contrary.Left drive nut 5 is respectively P with the pitch of right drive nut 5 ' negative thread
3, P
4, P
3=P
4=P
1=P
2, P
3with P
1rotation direction is consistent, P
4with P
2rotation direction is consistent.
Proper alignment and the stationarity of described bearing assembly 7 for guaranteeing that differential screw arbor 3 rotates.
Described cylindrical positioning pins 9 is precise placement element, the relative position for accurate positioning mandril 8 with rocking bar 10, rocking bar 10 and bracing frame 1, rocking bar 10 and connecting rod 11.
Described rocking bar 10, connecting rod 11, slide block 13 form slider-rocker mechanism with bracing frame 1, and left rocking bar 10 fixed pivot P are parallel with the line of right rocking bar 10 fixed pivot P ' and the bottom basal plane M of bracing frame 1.During rocking bar 10 motion, be with movable slider straight-line motion Shang Xia 13.
Described lifting slide rail 12 is guide, for supporting and restriction slide block 13, makes slide block 13 do straight-line motion by assigned direction.Planeness≤the 0.005mm of lifting slide rail 12 guide pass, parallelism≤0.01mm of guide pass and bracing frame sidepiece basal plane N.
Described slide block 13, turning rack 15, upset connecting rod 16 form slider-rocker mechanism with bracing frame 1, and slide block is straight-line motion drive turning rack 15 flip-flop movements Shang Xia 13.
Described fixed pin shaft 17 is step pin axle, the relative position for positioning turning connecting rod 16 with bracing frame 1, and the dipping and heaving of restriction turning rack 15, makes device carry out flip-flop movement.
Described limiting stopper 19 is limit element, plays spacing and protective effect when turning rack 15 upsets put in place.
Described pitch regulation strut 20 is the relative position with slide block 13 for fixing turning rack 15, and the flip-flop movement of restriction turning rack 15, makes device carry out dipping and heaving.
1. the realization of device flip-flop movement:
1-1. takes off two of front and back pitch regulation strut 20 from slide block 13; Simultaneously by upset connecting rod 10 with fixed pin shaft 17, be positioned on bracing frame 1.As shown in Figure 5, pin card plate 18 snaps in the bayonet socket of fixed pin shaft 17 and fixes with screw and nut.
1-2. shakes feeding handwheel 2 handles, gives differential screw arbor 3 one driving forces.Due to differential screw arbor 3 and left drive nut 5, right drive nut 5 ' compositions differential screw mechanism, thereby differential screw arbor 3 rotates the left drive nut 5 of drive, right drive nut 5 ' along the differential screw arbor quick convergence of 3 axis direction or leaves and move.
The left drive nut 5 of 1-3., right drive nut 5 ' motion drive two push rod 8 convergences in left and right or leave motion.
1-4. is because push rod 8 and rocking bar 10 are hinged, and rocking bar 10 one end are fixed on bracing frame 1, so push rod 8 convergences or leave Sports band and shake bar 10 and swing within the specific limits.
1-5. rocking bar 10, connecting rod 11, slide block 13 forms slider-rocker mechanism with bracing frame 1, and rocking bar 10 swings band movable slider 13 within the specific limits along straight-line motion up and down in lifting slide rail 12 table top certain limits, and dipping and heaving principle as shown in Figure 2.
1-6. slide block 13, turning rack 15, upset connecting rod 16 form slider-rocker mechanism with bracing frame 1, and now active force is the straight-line motion up and down of slide block 13, drives turning rack 15 to rotatablely move, i.e. the upset of implement device.As shown in Figure 3, the path of motion of turning rack 15 and upset connecting rod 16 hinge-point R is as shown in curve α β for flip-flop movement principle.
As shown in Figure 4, when turning rack 15 is turned to rear surface 15-2 and contacts with the upper surface of limiting stopper 19 on bracing frame 1, device upset puts in place 1-7., now should stop shaking the handle of feeding handwheel 2.Due to differential screw mechanism, device is realized and is stablized self-locking.
2. the realization of device dipping and heaving:
2-1. is screwed respectively the front-back at slide block 13 by two pitch regulation struts 20, and the adjusting screw(rod) 21 that is loaded on pitch regulation strut 20 neutral threaded hole withstands two face 15-1,15-2 of turning rack 15; Screw out the screw and nut of pin card plate 18 simultaneously, take off pin card plate 18, fixed pin shaft 17 is extracted in upset connecting rod 16 holes, the connecting rod 16 that now overturns is thrown off with bracing frame 1.
So far, slide block 13, pitch regulation strut 20 form an integral body with turning rack 15.
2-2. lifting step is with step 1-2 to 1-5, and the turning rack 15 that is arranged on slide block 13 is realized up-and-down movement, i.e. the lifting of implement device.After lifting puts in place, due to differential screw mechanism, device is realized and is stablized self-locking.
The part that the present invention does not elaborate belongs to the known technology of this area.
The above; be only the specific embodiment in the present invention, but protection scope of the present invention is not limited to this, any people who is familiar with this technology is in the disclosed technical scope of the present invention; can understand conversion or the replacement expected, all should be encompassed in of the present invention comprise scope within.
Claims (12)
1. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission, it is characterized in that, comprise bracing frame (1), feeding handwheel (2), differential screw arbor (3), screw mandrel axle bed (4), left drive nut (5), right drive nut (5 '), flange bearing pin (6), bearing assembly (7), push rod (8), cylindrical positioning pins (9), rocking bar (10), connecting rod (11), lifting slide rail (12), slide block (13), Shaft assembly (14), turning rack (15), upset connecting rod (16), fixed pin shaft (17), pin card plate (18), limiting stopper (19), pitch regulation strut (20), adjusting screw(rod) (21), wherein:
It is upper that screw mandrel axle bed (4), two bearing assemblies in left and right (7) are all fixed on bracing frame (1), and feeding handwheel (2) one end connects differential screw arbor (3) its right end face;
Differential screw arbor (3) center is through screw mandrel axle bed (4), differential screw arbor (3) two ends coordinates assembling with two bearing assemblies in left and right (7), and two sections of the left and right screw thread of differential screw arbor (3) screws in respectively left drive nut (5), right drive nut (5 ');
Two push rods in left and right (8) are separately fixed at left drive nut (5), right drive nut (5 ') above with flange bearing pin (6), and push rod (8) respectively uses cylindrical positioning pins (9) fixing with bracing frame (1), rocking bar (10) with connecting rod (11) with rocking bar (10), rocking bar (10);
Two lifting slide rails (12) be arranged on respectively bracing frame (1) left and right sides and position identical, be that slide block (13) is parallel with the hinge-point line QQ ' of connecting rod (11) and the bottom basal plane M of bracing frame (1), the upper table surface of lifting slide rail (12) coordinates assembling with the following table of slide block (13), Shaft assembly (14) connection sliding block (13) and turning rack (15), upset connecting rod (16) one end and turning rack (15) are fixing, and the other end and bracing frame (1) are fixed or free with fixed pin shaft (17) and pin card plate (18);
Two limiting stoppers (19) are fixed on two of bracing frame (1), the two pitch regulation struts in front and back (20) are separately fixed at former and later two end faces of slide block (13), adjusting screw(rod) (21) screws in the center screw of pitch regulation strut (20), the forward and backward Surface Contact of adjusting screw(rod) (21) front end face and turning rack (15).
2. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, is characterized in that, the pitch of described differential screw arbor (3) left and right two sections of screw thread A, B is respectively P
1, P
2, P
1=P
2, rotation direction is contrary.
3. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, is characterized in that, described left drive nut (5) is respectively P with the negative thread pitch of right drive nut (5 ')
3, P
4, P
3=P
4=P
1=P
2, P
3with P
1rotation direction is consistent, P
4with P
2rotation direction is consistent.
4. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, is characterized in that, proper alignment and the stationarity of described bearing assembly (7) for guaranteeing that differential screw arbor rotates.
5. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, it is characterized in that, described cylindrical positioning pins (9) is precise placement element, the relative position for accurate positioning mandril (8) with rocking bar (10), rocking bar (10) and bracing frame (1), rocking bar (10) and connecting rod (11).
6. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, it is characterized in that, described rocking bar (10), connecting rod (11), slide block (13) form slider-rocker mechanism with bracing frame (1), and rocking bar (10) swings band movable slider (13) along lifting slide rail up-and-down movement.
7. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, it is characterized in that, described lifting slide rail (12) is guide, for supporting and restriction slide block movement, make slide block (13) do straight-line motion by assigned direction, planeness≤the 0.005mm of lifting slide guide rail, parallelism≤0.01mm of guide pass and bracing frame sidepiece basal plane N.
8. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, it is characterized in that, described slide block (13), turning rack (15), upset connecting rod (16) form slider-rocker mechanism with bracing frame (1), and the upper and lower straight-line motion of slide block (13) drives turning rack (15) flip-flop movement.
9. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, it is characterized in that, described fixed pin shaft (17) is step pin axle, relative position for positioning turning connecting rod (16) with bracing frame (1), the dipping and heaving of restriction turning rack (15), makes device carry out flip-flop movement.
10. connecting rod lifting and the turning device based on differential screw transmission and rocker slider transmission according to claim 1, is characterized in that, described limiting stopper (19) is limit element, plays spacing and protective effect when turning rack (15) upset puts in place.
11. connecting rod lifting and the turning devices based on differential screw transmission and rocker slider transmission according to claim 1, it is characterized in that, described pitch regulation strut (20) is the relative position with slide block (13) for fixing turning rack (15), the flip-flop movement of restriction turning rack (15), makes device carry out dipping and heaving.
12. connecting rod lifting and the turning devices based on differential screw transmission and rocker slider transmission according to claim 6, it is characterized in that, left rocking bar (10) fixed pivot P is parallel with bracing frame (1) bottom basal plane M with the line of right rocking bar (10) fixed pivot P '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357512.3A CN104176686B (en) | 2014-07-25 | 2014-07-25 | Connecting rod lifting based on differential screw transmission and rocker slider transmission and turning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357512.3A CN104176686B (en) | 2014-07-25 | 2014-07-25 | Connecting rod lifting based on differential screw transmission and rocker slider transmission and turning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104176686A true CN104176686A (en) | 2014-12-03 |
| CN104176686B CN104176686B (en) | 2016-08-17 |
Family
ID=51958081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410357512.3A Active CN104176686B (en) | 2014-07-25 | 2014-07-25 | Connecting rod lifting based on differential screw transmission and rocker slider transmission and turning device |
Country Status (1)
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|---|---|
| CN (1) | CN104176686B (en) |
Cited By (8)
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| CN104868830A (en) * | 2015-05-22 | 2015-08-26 | 上海工程技术大学 | Installation and adjustment device of solar cell panel |
| CN104944315A (en) * | 2015-06-16 | 2015-09-30 | 北京航天发射技术研究所 | Scissors fork lifting type auxiliary supporting mechanism capable of being locked at random position |
| CN105151736A (en) * | 2015-08-12 | 2015-12-16 | 文登蓝岛建筑工程有限公司 | Automatic turnover device for wallboard |
| CN105719704A (en) * | 2016-04-13 | 2016-06-29 | 中国科学院光电技术研究所 | Space large-angle precise switching and locking device |
| CN107339725A (en) * | 2017-04-01 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of movable part elevating mechanism of range hood and application have the range hood of the elevating mechanism |
| CN107825092A (en) * | 2017-09-30 | 2018-03-23 | 中国运载火箭技术研究院 | One kind upset assembling device |
| CN109246020A (en) * | 2018-10-19 | 2019-01-18 | 合肥享淘科技有限公司 | A kind of novel computer network router |
| CN112875560A (en) * | 2021-01-12 | 2021-06-01 | 奇瑞汽车河南有限公司 | Double-sliding rail type automobile jack mechanism |
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| CN104944315A (en) * | 2015-06-16 | 2015-09-30 | 北京航天发射技术研究所 | Scissors fork lifting type auxiliary supporting mechanism capable of being locked at random position |
| CN105151736A (en) * | 2015-08-12 | 2015-12-16 | 文登蓝岛建筑工程有限公司 | Automatic turnover device for wallboard |
| CN105719704A (en) * | 2016-04-13 | 2016-06-29 | 中国科学院光电技术研究所 | Space large-angle precise switching and locking device |
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| CN107339725A (en) * | 2017-04-01 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of movable part elevating mechanism of range hood and application have the range hood of the elevating mechanism |
| CN107825092A (en) * | 2017-09-30 | 2018-03-23 | 中国运载火箭技术研究院 | One kind upset assembling device |
| CN107825092B (en) * | 2017-09-30 | 2019-09-06 | 中国运载火箭技术研究院 | A kind of overturning assembly device |
| CN109246020A (en) * | 2018-10-19 | 2019-01-18 | 合肥享淘科技有限公司 | A kind of novel computer network router |
| CN112875560A (en) * | 2021-01-12 | 2021-06-01 | 奇瑞汽车河南有限公司 | Double-sliding rail type automobile jack mechanism |
| CN112875560B (en) * | 2021-01-12 | 2023-04-07 | 奇瑞汽车河南有限公司 | Double-sliding rail type automobile jack mechanism |
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|---|---|
| CN104176686B (en) | 2016-08-17 |
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