CN112065815A - Multistage piston hydraulic tension oil cylinder - Google Patents
Multistage piston hydraulic tension oil cylinder Download PDFInfo
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- CN112065815A CN112065815A CN202010873664.4A CN202010873664A CN112065815A CN 112065815 A CN112065815 A CN 112065815A CN 202010873664 A CN202010873664 A CN 202010873664A CN 112065815 A CN112065815 A CN 112065815A
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000009434 installation Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to the field of hydraulic tension cylinders, in particular to a multistage piston hydraulic tension cylinder, which comprises a base, wherein the upper surface of the base is fixedly connected with a cylinder mechanism, two supporting mechanisms are symmetrically arranged on the base relative to the cylinder mechanism, a spring mechanism is arranged inside each supporting mechanism, when in use, a mounting seat is upwards jacked up by the multistage piston hydraulic tension cylinder, meanwhile, the mounting seat drives a second latch to upwards rise through a fixed rod, after the mounting seat rises to the top end position, a spring can push a positioning block to outwards move, the positioning block drives the first latch to be meshed with the second latch, so that the fixed rod can be positioned, and simultaneously, the mounting seat can be supported, so that the pressure of the mounting seat on the multistage piston hydraulic tension cylinder is reduced, and the pressure on the multistage piston hydraulic tension cylinder is avoided to be larger, the service life of the multi-stage piston hydraulic tension oil cylinder can be greatly influenced.
Description
Technical Field
The invention relates to the field of hydraulic pull oil cylinders, in particular to a multi-stage piston hydraulic pull oil cylinder.
Background
The hydraulic oil cylinder is an actuating mechanism in a hydraulic system, and is an energy conversion device for converting hydraulic energy into mechanical energy of reciprocating linear motion, and generally comprises a cylinder body, a piston rod, a cylinder cover and the like.
When the existing multistage piston hydraulic tension cylinder is used, an object above the multistage piston hydraulic tension cylinder is generally supported by the multistage piston hydraulic tension cylinder, and under long-time support, the pressure on the multistage piston hydraulic tension cylinder is large, so that the service life of the multistage piston hydraulic tension cylinder is greatly influenced, and the multistage piston hydraulic tension cylinder is necessary to be provided.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a multistage piston hydraulic tension oil cylinder.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a multistage piston hydraulic pressure pulling force hydro-cylinder, includes a base, hydro-cylinder mechanism of last fixed surface of base is connected with, it is the symmetry form about hydro-cylinder mechanism and is provided with two supporting mechanism, two on the base the inside of supporting mechanism all is provided with a spring mechanism, two mechanisms of pushing down of hydro-cylinder mechanism fixedly connected with about two supporting mechanism's position, two stop gear of fixedly connected with on the position that hydro-cylinder mechanism corresponds two supporting mechanism and two mechanisms of pushing down, be two pivots of symmetry form fixedly connected with on the relative lateral wall of base.
The hydraulic cylinder mechanism comprises a multistage piston hydraulic tension cylinder, the multistage piston hydraulic tension cylinder is fixedly connected to the upper surface of the base, a mounting seat is arranged above the multistage piston hydraulic tension cylinder, an activity cavity is formed in the mounting seat, a through hole is formed in the bottom cavity wall of the activity cavity in a penetrating mode, the upper end of the multistage piston hydraulic tension cylinder penetrates through the through hole and extends upwards into the activity cavity, the multistage piston hydraulic tension cylinder is located in the activity cavity and fixedly connected with an active block, the upper surface of the active block is abutted to the top cavity wall of the activity cavity, the upper surface of the mounting seat is fixedly connected with a plurality of threaded rods, and the upper end rod wall of each threaded rod is connected with a nut through threads.
Specifically, the two supporting mechanisms respectively comprise a fixed rod, the two fixed rods are respectively fixedly connected with the lower surface of the mounting seat, two fixing holes are arranged on the base corresponding to the positions of the two fixing rods in a penetrating manner, the lower ends of the two fixing rods respectively penetrate through the corresponding fixing holes and extend downwards, a positioning groove is arranged on the hole wall of each fixing hole, each positioning groove is connected with a positioning block in a sliding manner, one end of each positioning block, far away from the bottom of each positioning groove, penetrates through the notch of the corresponding positioning groove and extends outwards into the corresponding fixing hole, a first latch is fixedly connected on each positioning block in each fixing hole, and the wall of the fixed rod corresponding to the two first clamping teeth is fixedly connected with a second clamping tooth, and the two first clamping teeth are respectively meshed with the corresponding second clamping teeth.
The spring mechanism comprises a limiting groove and two limiting grooves, wherein the limiting grooves are respectively arranged at the bottoms of the two positioning grooves and are respectively connected with a limiting rod and two limiting rods in the limiting grooves, one end of each limiting rod, which is far away from the limiting rod, penetrates through the notches of the corresponding limiting grooves respectively and is fixedly connected to the positioning blocks in an outward extending mode, and the other end of each limiting rod is fixedly connected to the two positioning blocks respectively.
The lower pressing mechanism comprises an installation rod and two parallel installation rods, the installation rods are fixedly connected to the outer side wall of the top end of the multistage piston hydraulic tension cylinder in parallel and are two, one lower pressing rod is fixedly connected to one end, far away from the multistage piston hydraulic tension cylinder, of the installation rod and corresponds to two lower pressing rods, the positioning block of the lower pressing rod is penetrated through a lower pressing hole formed in an inclined mode, and the lower ends of the lower pressing rods are penetrated through the upper end hole openings extending into the fixed holes and are abutted to the upper end hole openings of the lower pressing holes.
The limiting mechanism comprises a limiting plate, the limiting plate is in parallel and fixedly connected to the outer side wall of the bottom end of the multistage piston hydraulic tension cylinder, a first limiting hole is formed in the position, corresponding to the two lower compression rods, of the limiting plate in a penetrating mode, a second limiting hole is formed in the position, corresponding to the two fixing rods, of the limiting plate in a penetrating mode.
Specifically, two all be the symmetry form on the relative cell wall of constant head tank and seted up two spouts, four equal sliding connection has a slider in the spout, four wherein one end of slider extends to two constant head tanks respectively in, four the one end that the slider is located two constant head tanks is fixed connection respectively on the relative lateral wall of two locating pieces.
Specifically, two all seted up a plurality of ball groove on the pore wall of fixed orifices, a plurality of ball inslot all roll connection has a ball, a plurality of one of them side end face of ball extends to respectively in two fixed orificess and offsets with two dead levers.
The invention has the beneficial effects that:
(1) the invention relates to a multistage piston hydraulic tension oil cylinder, which is characterized in that a multistage piston hydraulic tension oil cylinder, a mounting seat, a movable cavity, a through hole, a movable plate, a threaded rod, a nut, a fixed rod, a fixed hole, a positioning groove, a positioning block, a first latch, a second latch, a limiting groove, a limiting rod and a spring are arranged, when in use, the mounting seat is lifted upwards by the multistage piston hydraulic tension oil cylinder, and simultaneously the mounting seat drives the second latch to ascend upwards through the fixed rod, after the mounting seat rises to the top end position, the spring can push the positioning block to move outwards, the positioning block drives the first latch and the second latch to be meshed, thereby positioning the fixed rod and supporting the mounting seat at the same time, further reducing the pressure of the mounting seat on the multistage piston hydraulic tension oil cylinder, therefore, the problem that the service life of the multi-stage piston hydraulic tension oil cylinder is greatly influenced due to the fact that the pressure applied to the multi-stage piston hydraulic tension oil cylinder is large is avoided.
(2) According to the multistage piston hydraulic tension oil cylinder, the mounting seat, the movable cavity, the through hole, the movable plate, the threaded rod, the nut, the fixed rod, the fixed hole, the positioning groove, the positioning block, the first latch, the second latch, the limiting groove, the limiting rod, the spring, the mounting rod, the lower pressing rod and the lower pressing hole are arranged, when the multistage piston hydraulic tension oil cylinder is pulled back, the mounting rod and the lower pressing rod are firstly driven to descend, the positioning block is pushed to move towards the positioning groove through extrusion of the lower pressing rod on the lower pressing hole, the first latch is further disengaged from the second latch, and at the moment, the mounting seat can descend.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of a jacking state structure of a multi-stage piston hydraulic pull cylinder according to the present invention;
FIG. 2 is a schematic structural diagram of a pre-recovery state of a multi-stage piston hydraulic pull cylinder according to the present invention;
FIG. 3 is a schematic view of a structure of a multistage piston hydraulic pull cylinder in a recovery state according to the present invention;
FIG. 4 is a sectional view of an installation structure of a positioning block in a multi-stage piston hydraulic tension cylinder provided by the invention;
FIG. 5 is a sectional view of a top view of a base of a multi-stage piston hydraulic cylinder according to the present invention;
FIG. 6 is an enlarged schematic structural view of a portion A in FIG. 1 of a multi-stage piston hydraulic cylinder according to the present invention;
fig. 7 is an enlarged structural schematic diagram of a part B in fig. 2 of the multistage piston hydraulic pull cylinder provided by the invention.
In the figure: 1. a base; 2. an oil cylinder mechanism; 21. a multi-stage piston hydraulic pull oil cylinder; 22. a mounting seat; 23. a movable cavity; 24. a through hole; 25. a movable plate; 26. a threaded rod; 27. a nut; 3. a support mechanism; 31. fixing the rod; 32. a fixing hole; 33. positioning a groove; 34. positioning blocks; 35. a first latch; 36. a second latch; 4. a spring mechanism; 41. a limiting groove; 42. a limiting rod; 43. a spring; 5. a pressing mechanism; 51. mounting a rod; 52. a lower pressure lever; 53. pressing the hole downwards; 6. a limiting mechanism; 61. a limiting plate; 62. a first limit hole; 63. a second limiting hole; 7. a chute; 8. a slider; 9. a ball groove; 10. a rotating shaft; 11. and a ball.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-7, the multistage piston hydraulic tension cylinder according to the present invention includes a base 1, an oil cylinder mechanism 2 is fixedly connected to an upper surface of the base 1, two support mechanisms 3 are symmetrically disposed on the base 1 with respect to the oil cylinder mechanism 2, a spring mechanism 4 is disposed inside each of the two support mechanisms 3, two pressing mechanisms 5 are fixedly connected to the oil cylinder mechanism 2 with respect to the two support mechanisms 3, two limit mechanisms 6 are fixedly connected to the oil cylinder mechanism 2 with respect to the two support mechanisms 3 and the two pressing mechanisms 5, and two rotating shafts 10 are symmetrically and fixedly connected to opposite outer side walls of the base 1.
Specifically, the cylinder mechanism 2 includes a multi-stage piston hydraulic tension cylinder 21, the multi-stage piston hydraulic tension cylinder 21 is fixedly connected to the upper surface of the base 1, a mounting seat 22 is disposed above the multi-stage piston hydraulic tension cylinder 21, a movable cavity 23 is disposed inside the mounting seat 22, a through hole 24 is disposed on the bottom cavity wall of the movable cavity 23, the upper end of the multi-stage piston hydraulic tension cylinder 21 penetrates through the through hole 24 and extends upwards into the movable cavity 23, a movable block 25 is fixedly connected to the upper surface of the multi-stage piston hydraulic tension cylinder 21 located in the movable cavity 23, the upper surface of the movable block 25 abuts against the top cavity wall of the movable cavity 23, a plurality of threaded rods 26 are fixedly connected to the upper surface of the mounting seat 22, a nut 27 is connected to the upper end rod walls of the plurality of threaded rods 26 by threads, and the two support mechanisms 3 each include a fixed rod 31, two fixing rods 31 are fixedly connected to the lower surface of the mounting seat 22, two fixing holes 32 are formed in the base 1 corresponding to the positions of the two fixing rods 31 in a penetrating manner, the lower ends of the two fixing rods 31 respectively penetrate through the corresponding fixing holes 32 and extend downwards, a positioning groove 33 is formed in the hole wall of each fixing hole 32, a positioning block 34 is connected to each positioning groove 33 in a sliding manner, one end, far away from the bottom of each positioning groove 33, of each positioning block 34 respectively penetrates through the notch of the corresponding positioning groove 33 and extends outwards into the corresponding fixing hole 32, a first latch 35 is fixedly connected to each positioning block 34 in each fixing hole 32, a second latch 36 is fixedly connected to the rod wall of each fixing rod 31 corresponding to the positions of the two first latches 35, the two first latches 35 are respectively engaged with the corresponding second latches 36, each spring mechanism 4 comprises a limiting groove 41, two limiting grooves 41 are respectively arranged at the bottoms of the two positioning grooves 33, a limiting rod 42 is respectively connected in the two limiting grooves 41 in a sliding manner, the far ends of the two limiting rods 42 respectively penetrate through the notches of the corresponding limiting grooves 41 and extend outwards and are fixedly connected to the positioning blocks 34, a spring 43 is respectively sleeved on the rod wall of the two limiting rods 42 in the positioning grooves 33, one end of each spring 43 is respectively fixedly connected to the bottoms of the two positioning grooves 33, the other ends of the two springs 43 are respectively fixedly connected to the two positioning blocks 34, the multistage piston hydraulic tension cylinder 21 is started to lift upwards, the multistage piston hydraulic tension cylinder 21 pushes the mounting seat 22 upwards through the movable plate 25, the mounting seat 22 drives the fixing rod 31 to lift synchronously, the fixing rod 31 drives the second latch 36 to lift synchronously, and the multistage piston hydraulic tension cylinder 21 drives the mounting rod 51 to lift synchronously, installation pole 51 drives depression bar 52 synchronous rising down and until breaking away from down hole 53, spring 43 promotes locating piece 34 and outwards removes this moment, locating piece 34 outwards promotes first latch 35, and make first latch 35 and second latch 36 mesh mutually, and then can support dead lever 31, support mount pad 22 through dead lever 31 simultaneously, and then can reduce the pressure of mount pad to multistage piston hydraulic pressure drag cylinder 21, avoid multistage piston hydraulic pressure drag cylinder 21 to cause the damage to influence its life under pressure.
Specifically, each of the two pressing mechanisms 5 includes an installation rod 51, the two installation rods 51 are fixedly connected to the outer side wall of the top end of the multi-stage piston hydraulic cylinder 21 in a parallel manner, one end of each of the two installation rods 51 away from the multi-stage piston hydraulic cylinder 21 is fixedly connected with a pressing rod 52, a positioning block 34 corresponding to the positions of the two pressing rods 52 is provided with a pressing hole 53 in an inclined manner, the lower ends of the two pressing rods 52 extend into the fixing hole 32 and abut against the upper end orifice of the pressing hole 53, when the multi-stage piston hydraulic cylinder 21 needs to be retracted, the multi-stage piston hydraulic cylinder 21 drives the installation rods 51 to descend synchronously, and when the multi-stage piston hydraulic cylinder 21 descends, the movable plate 25 is driven to slide in the movable cavity 23, so that the installation seat 22 cannot descend, and the multi-stage piston hydraulic cylinder 21 can descend by a certain distance, the installation rod 51 drives the lower pressing rod 52 to descend synchronously, the lower pressing rod 52 extrudes the radian slope of the lower pressing hole 53, so that the positioning block 34 can move into the positioning groove 33, meanwhile, the first latch 35 moves and releases the engagement with the second latch 36, and then the fixing of the fixing rod 31 can be released, so that the installation seat 22 can descend for subsequent use.
Specifically, two stop gear 6 all include a limiting plate 61, two limiting plates 61 are parallel form fixed connection on multistage piston hydraulic pressure drag cylinder 21's bottom lateral wall, it has seted up a first spacing hole 62 all to run through on two limiting plates 61 correspond two depression bars 52's the position down, it has seted up a spacing hole 63 of second all to run through on two limiting plates 61 correspond two dead levers 31's the position, can carry out spacingly to two depression bars 52 down to first spacing hole 62, later spacing hole 63 of rethread second carries on spacingly to two dead levers 31, and then make two depression bars 52 and two dead levers 31 can not produce the skew down.
It is specific, all be two spouts 7 seted up to the symmetry form on two relative cell walls of constant head tank 33, equal sliding connection has a slider 8 in four spouts 7, wherein one end of four sliders 8 extends to respectively in two constant head tanks 33, one end that four sliders 8 are located two constant head tanks 33 is fixed connection respectively on the relative lateral wall of two locating pieces 34, locating piece 34 can drive slider 8 and remove in spout 7 when constant head tank 33 removes, and it is spacing to slider 8 through spout 7, make locating piece 34 can not break away from constant head tank 33.
Specifically, a plurality of ball groove 9 has all been seted up on the pore wall of two fixed orificess 32, equal roll connection has a ball 11 in a plurality of ball groove 9, one of them side end face of a plurality of ball 11 extends respectively to in two fixed orificess 32 and offsets with two dead levers 31, carry out the top through ball 11 to dead lever 31 and move, make first latch 35 and second latch 36 can mesh and can not squint, the roll through ball 11 can reduce the frictional force when dead lever 31 goes up and down simultaneously, the lift of dead lever 31 of being convenient for.
When in use, the multi-stage piston hydraulic tension cylinder 21 is firstly started to lift upwards, and then the multi-stage piston hydraulic tension cylinder 21 pushes the mounting seat 22 upwards through the movable plate 25, the mounting seat 22 drives the fixing rod 31 to ascend synchronously, the fixing rod 31 drives the second latch 36 to ascend synchronously, the multistage piston hydraulic tension cylinder 21 drives the mounting rod 51 to synchronously ascend, the mounting rod 51 drives the lower pressing rod 52 to synchronously ascend until the lower pressing rod is separated from the lower pressing hole 53, at the moment, the spring 43 pushes the positioning block 34 to move outwards, the positioning block 34 pushes the first latch 35 outwards, and the first latch 35 is meshed with the second latch 36, and then the fixing rod 31 can be supported, and at the same time the mounting seat 22 can be supported by means of fixing rod 31, the pressure of the mounting base on the multistage piston hydraulic tension oil cylinder 21 can be further reduced, and the influence on the service life of the multistage piston hydraulic tension oil cylinder 21 due to damage under the pressure is avoided; when the multistage piston hydraulic tension cylinder 21 needs to be retracted, the multistage piston hydraulic tension cylinder 21 drives the mounting rod 51 to descend synchronously, the multistage piston hydraulic tension cylinder 21 drives the movable plate 25 to slide in the movable cavity 23 when descending, so that the mounting seat 22 cannot descend, the multistage piston hydraulic tension cylinder 21 can descend for a certain distance, the mounting rod 51 drives the lower pressing rod 52 to descend synchronously, the lower pressing rod 52 extrudes the radian slope of the lower pressing hole 53, so that the positioning block 34 can move into the positioning groove 33, meanwhile, the first latch 35 moves and is disengaged from the second latch 36, and then the fixing of the fixing rod 31 can be released, so that the mounting seat 22 can descend, and subsequent use is facilitated.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a multistage piston hydraulic tension hydro-cylinder, includes a base (1), its characterized in that, last fixed surface of base (1) is connected with an oil cylinder mechanism (2), be provided with two supporting mechanism (3), two about oil cylinder mechanism (2) on base (1) and be the symmetry form the inside of supporting mechanism (3) all is provided with a spring mechanism (4), oil cylinder mechanism (2) are about two mechanism (5) of pushing down of two fixed connection in the position of two supporting mechanism (3), two stop gear (6) of fixedly connected with on oil cylinder mechanism (2) correspond two supporting mechanism (3) and two mechanism (5) of pushing down, be two pivot (10) of symmetry form fixedly connected with on the relative lateral wall of base (1).
2. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: the oil cylinder mechanism (2) comprises a multi-stage piston hydraulic tension oil cylinder (21), the multi-stage piston hydraulic tension oil cylinder (21) is fixedly connected to the upper surface of the base (1), an installation seat (22) is arranged above the multi-stage piston hydraulic tension oil cylinder (21), a movable cavity (23) is formed in the installation seat (22), a through hole (24) is formed in the bottom cavity wall of the movable cavity (23) in a penetrating mode, the upper end of the multi-stage piston hydraulic tension oil cylinder (21) penetrates through the through hole (24) and extends upwards into the movable cavity (23), a movable block (25) is fixedly connected to the upper surface of the multi-stage piston hydraulic tension oil cylinder (21) in the movable cavity (23), the upper surface of the movable block (25) is abutted to the top cavity wall of the movable cavity (23), and a plurality of threaded rods (26) are fixedly connected to the upper surface of the installation seat (22), the upper end rod walls of the plurality of threaded rods (26) are all connected with a nut (27) in a threaded mode.
3. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: the two supporting mechanisms (3) respectively comprise a fixing rod (31), the two fixing rods (31) are fixedly connected to the lower surface of the mounting seat (22), two fixing holes (32) are formed in the base (1) corresponding to the positions of the two fixing rods (31) in a penetrating mode, the lower ends of the two fixing rods (31) respectively penetrate through the corresponding fixing holes (32) and extend downwards, a positioning groove (33) is formed in the hole wall of each fixing hole (32), each positioning groove (33) is connected with a positioning block (34) in a sliding mode, one end, far away from the bottom of each positioning groove (33), of each positioning block (34) respectively penetrates through the notch of the corresponding positioning groove (33) and extends outwards into the corresponding fixing hole (32), and a first clamping tooth (35) is fixedly connected to each positioning block (34) located in each fixing hole (32), the wall of the fixed rod (31) corresponding to the two first clamping teeth (35) is fixedly connected with a second clamping tooth (36), and the two first clamping teeth (35) are respectively meshed with the corresponding second clamping teeth (36).
4. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: two spring mechanism (4) all include a spacing groove (41), two the tank bottom at two constant head tanks (33) is seted up respectively in spacing groove (41), two equal sliding connection has a gag lever post (42), two in spacing groove (41) the one end that gag lever post (42) kept away from mutually runs through the notch that corresponds spacing groove (41) respectively and outwards extends and fixed connection on locating piece (34), two all the cover is equipped with one spring (43), two on gag lever post (42) is located the pole wall in constant head tank (33) wherein one end difference fixed connection of spring (43) is at the tank bottom of two constant head tanks (33), two the other end difference fixed connection of spring (43) is on two locating pieces (34).
5. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: two push down mechanism (5) all include one installation pole (51), two installation pole (51) are parallel form fixed connection on the top lateral wall of multistage piston hydraulic pressure pulling force hydro-cylinder (21), two the equal fixedly connected with of one end that multistage piston hydraulic pressure pulling force hydro-cylinder (21) was kept away from in installation pole (51) pushes down pole (52), corresponds two locating piece (34) of pushing down pole (52) position run through and set up one and be push down hole (53) that the slope form set up, two the lower extreme of pushing down pole (52) runs through extend to in fixed orifices (32) and offset with the upper end drill way of push down hole (53).
6. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: two stop gear (6) all include a limiting plate (61), two limiting plate (61) are parallel form fixed connection on the bottom lateral wall of multistage piston hydraulic pressure pulling force hydro-cylinder (21), two all run through on limiting plate (61) the position of two corresponding depression bars (52) down and seted up one first spacing hole (62), two all run through on limiting plate (61) the position of two corresponding dead levers (31) and set up one spacing hole of second (63).
7. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: two all be the symmetry form on the relative cell wall of constant head tank (33) and seted up two spout (7), four equal sliding connection has a slider (8), four in spout (7) wherein one end of slider (8) extends to respectively in two constant head tanks (33), four one end difference fixed connection that slider (8) are located in two constant head tanks (33) is on the relative lateral wall of two locating pieces (34).
8. The multi-stage piston hydraulic tension cylinder as claimed in claim 1, wherein: a plurality of ball grooves (9) are formed in the hole walls of the two fixing holes (32), a plurality of ball grooves (11) are connected into the ball grooves (9) in a rolling mode, a plurality of balls (11) extend into the two fixing holes (32) respectively, and the ball grooves are abutted to the two fixing rods (31).
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| CN202010873664.4A CN112065815B (en) | 2020-08-26 | 2020-08-26 | Multistage piston hydraulic tension oil cylinder |
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| CN202010873664.4A CN112065815B (en) | 2020-08-26 | 2020-08-26 | Multistage piston hydraulic tension oil cylinder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757218A (en) * | 2021-08-12 | 2021-12-07 | 蔡文涛 | Multistage piston hydraulic tension oil cylinder |
| CN113944672A (en) * | 2021-09-17 | 2022-01-18 | 刘铁军 | Multistage piston hydraulic tension oil cylinder |
| CN115419632A (en) * | 2022-11-07 | 2022-12-02 | 烟台星辉航空液压有限公司 | Double-acting three-stage oil cylinder with multiple oil pipes |
| CN116447194A (en) * | 2023-06-15 | 2023-07-18 | 扬州力液德机械有限公司 | Double-multistage synchronous hydraulic cylinder and intelligent control method thereof |
| CN116789025A (en) * | 2022-03-12 | 2023-09-22 | 丁安琦 | Multistage piston hydraulic tension oil cylinder |
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| CN201953739U (en) * | 2011-01-27 | 2011-08-31 | 徕斯机器人（上海）有限公司 | Main hydraulic cylinder of press machine |
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| CN110296122A (en) * | 2019-06-25 | 2019-10-01 | 同济大学 | A kind of movable frame posture hydraulic cylinder of resistance to unbalance loading |
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| CN113757218A (en) * | 2021-08-12 | 2021-12-07 | 蔡文涛 | Multistage piston hydraulic tension oil cylinder |
| CN113944672A (en) * | 2021-09-17 | 2022-01-18 | 刘铁军 | Multistage piston hydraulic tension oil cylinder |
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