CN103771287A - Multi-cylinder synchronous lifting mechanism - Google Patents
Multi-cylinder synchronous lifting mechanism Download PDFInfo
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- CN103771287A CN103771287A CN201410061098.1A CN201410061098A CN103771287A CN 103771287 A CN103771287 A CN 103771287A CN 201410061098 A CN201410061098 A CN 201410061098A CN 103771287 A CN103771287 A CN 103771287A
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Abstract
The invention discloses a multi-cylinder synchronous lifting mechanism. The multi-cylinder synchronous lifting mechanism comprises a left lifting cylinder, a right lifting cylinder, a left loader, a right loader, a pin seat, a pin shaft, a pressing rod assembly, an oil tank, a first throttle valve, a second throttle valve, a third throttle valve, a fourth throttle valve, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve and a plurality of pipelines. As for heavy goods in small size, the goods can be lifted by a single hydraulic cylinder, and if the size of the heavy goods is large, the goods can be lifted through a plurality of hydraulic cylinders. As for the lifting mechanism with the plurality of hydraulic cylinders, synchronous lifting of the plurality of hydraulic cylinders is required, if lifting speeds and positions of the hydraulic cylinders are not synchronous and can not correspond to the heavy goods in the process of lifting the heavy goods, deviation of each supporting point position of the hydraulic cylinders is caused, and the heavy goods tend to roll over. The multi-cylinder synchronous lifting mechanism is simple in structure, reliable in operation, and multi-cylinder synchronous stable lifting and descending of the heavy goods in large size can be fully guaranteed.
Description
Technical field
The present invention relates to a kind of multi-cylinder synchronous lifting mechanism, be specifically related to the weight synchronous lifting mechanism realized by multiple hydraulic rams, belong to electric and mechanical & electrical technology field.
Background technology
At present, a lot of occasions widespread use hydraulic ram realize the lifting of weight, for undersized weight, can realize lifting by single hydraulic ram, if the size of weight is larger, only realize lifting by single hydraulic ram, be very easy to cause the rollover of weight, so, conventionally carry out the lifting of large scale weight by multiple hydraulic rams.For the lifting mechanism of multiple hydraulic rams, needing the subject matter solving is the synchronous lifting of multiple hydraulic rams, if in weight lifting process, the lifting speed of each hydraulic ram and position can not be realized synchronously, corresponding to weight, each supporting point position that hydraulic ram forms produces deviation, easily causes the rollover of weight.
For the lifting of large scale weight, the present invention is desirable to provide a kind of multi-cylinder synchronous lifting mechanism of simple in structure, reliable operation, realizes the steady lifting of large scale weight.
Summary of the invention
In order to guarantee the steady lifting of large scale weight, the invention provides a kind of multi-cylinder synchronous lifting mechanism of simple in structure, reliable operation, technical scheme of the present invention is as follows:
A kind of multi-cylinder synchronous lifting mechanism, comprise: left lifting cylinder, right lifting cylinder, left loader, right loader, key seat, bearing pin, depression bar assembly, fuel tank, first throttle valve, the second flow regulating valve, the 3rd flow regulating valve, the 4th flow regulating valve, the first check valve, the second check valve, the 3rd check valve, the 4th check valve and some pipelines, pipeline comprises pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight.
Left lifting cylinder and right lifting cylinder are placed in respectively the left and right sides of weight that mechanism lifts below.Described left lifting cylinder comprises left cylinder epicoele, left cylinder piston rod, left cylinder piston, left cylinder cavity of resorption, left cylinder cylinder barrel, left cylinder exhaust gear, the left side of left cylinder piston rod and weight below offsets, left cylinder epicoele is connected with atmosphere by the left cylinder exhaust gear being arranged on left cylinder cylinder barrel, if left cylinder cavity of resorption passes into high pressure oil, act on the lower end of left cylinder piston, can promote the gravity that left cylinder piston and left cylinder piston rod overcome weight, realize the upwards lifting of left side of weight; Described right lifting cylinder comprises right cylinder epicoele, right cylinder piston rod, right cylinder piston, right cylinder cavity of resorption, right cylinder cylinder barrel, right cylinder exhaust gear, the right side of right cylinder piston rod and weight below offsets, right cylinder epicoele is connected with atmosphere by the right cylinder exhaust gear being arranged on right cylinder cylinder barrel, if right cylinder cavity of resorption passes into high pressure oil, act on the lower end of right cylinder piston, can promote the gravity that right cylinder piston and right cylinder piston rod overcome weight, realize the upwards lifting of right side of weight.If left cylinder cavity of resorption and right cylinder cavity of resorption pass into the high pressure oil of same traffic, high pressure oil can promote left cylinder piston and left cylinder piston rod and right cylinder piston and right cylinder piston rod and overcome with identical speed the gravity of weight, realizes the synchronous lifting in left and right of weight.
Described left loader comprises left plunger, left cylinder, left pressure chamber, left spring.The lower seal of described left plunger is arranged on the inside of left cylinder, and form left pressure chamber, the bottom of described left plunger is also provided with left plunger cavity, the top of left spring is arranged in left plunger cavity, the upper end of left spring and the upper end of left plunger cavity offset, the lower end of left spring and left cylinder interior lower end offset, when the upper end of left plunger is subject to External Force Acting, overcome the application force of left spring, left plunger moves downward, fluid pressurized in left pressure chamber contracts and can discharge, when removing the external force action of left plunger upper end, left plunger is upward movement under the effect of left spring, in left pressure chamber, produce negative pressure and can suck fluid from outside.
Described right loader comprises right plunger, right cylinder body, right pressure chamber, right spring.The lower seal of described right plunger is arranged on the inside of right cylinder body, and form right pressure chamber, the bottom of described right plunger is also provided with right plunger cavity, the top of right spring is arranged in right plunger cavity, the upper end of right spring and the upper end of right plunger cavity offset, the lower end of right spring and right cylinder interior lower end offset, when the upper end of right plunger is subject to External Force Acting, overcome the application force of right spring, right plunger moves downward, fluid pressurized in right pressure chamber contracts and can discharge, when removing the external force action of right plunger upper end, right plunger is upward movement under the effect of right spring, in right pressure chamber, produce negative pressure and can suck fluid from outside.
Described depression bar assembly comprises left depression bar, right depression bar, pipe link.The rear end of left depression bar and the rear end of right depression bar link into an integrated entity by pipe link, the front end of left depression bar and the front end of right depression bar offer respectively through hole, and form hinged by bearing pin and key seat, key seat is fixedly mounted in frame, depression bar assembly can swing up and down centered by bearing pin, the right plunger upper end of the left plunger upper end of left loader and right loader offsets with the lower edge of depression bar assembly respectively, when depression bar assembly is centered by bearing pin during to lower swing, depression bar assembly overcomes respectively the application force of left spring and right spring, the left plunger of synchronous promotion and right plunger move downward, fluid in left pressure chamber and right pressure chamber all by compression, left pressure chamber and right pressure chamber are discharged the fluid of equivalent, in the time that depression bar assembly upwards swings centered by bearing pin, left spring and right spring be synchronous left plunger and the right plunger upward movement of promoting respectively, all formation negative pressure in left pressure chamber and right pressure chamber, and can suck fluid from outside, because the displacement of left plunger and right plunger upward movement is subject to the restriction of depression bar assembly, left plunger and right plunger can only be with identical speed upward movements, and keep identical displacement, and left pressure chamber and right pressure chamber suck the fluid of equivalent from outside.
Described fuel tank is connected with the oil inlet of the 3rd check valve and the oil inlet of the 3rd flow regulating valve respectively by pipeline seven; Be connected with the oil inlet of the first check valve and the oil inlet of first throttle valve respectively by pipeline eight.The left pressure chamber of described left loader is connected with oil outlet, the oil outlet of the 3rd flow regulating valve and the oil inlet of the 4th check valve of the 3rd check valve, the oil inlet of the 4th flow regulating valve respectively by pipeline five.The right pressure chamber of described right loader is connected with oil outlet, the oil outlet of first throttle valve and the oil inlet of the second check valve of the first check valve, the oil inlet of the second flow regulating valve respectively by pipeline six.The left cylinder cavity of resorption of described left lifting cylinder is connected with the oil outlet of the 4th check valve and the oil outlet of the 4th flow regulating valve respectively by pipeline one.The left cylinder cavity of resorption of described right lifting cylinder is connected with the oil outlet of the second check valve and the oil outlet of the second flow regulating valve respectively by pipeline two.
The quantity of described lifting cylinder can be 2, can be also multiple.
The quantity of described loader can be 2, can be also multiple.
Described check valve and flow regulating valve can be separate elements, can be also the assembly sets of check valve and flow regulating valve.
Described lifting cylinder can be piston cylinder, also can plunger case.
A kind of principle of work of multi-cylinder synchronous lifting mechanism:
(1), the multi-cylinder synchronous lifting of weight: first throttle valve, the second flow regulating valve, the 3rd flow regulating valve, the 4th flow regulating valve are respectively in closed condition.Operation depression bar assembly, when depression bar assembly is centered by bearing pin during to lower swing, depression bar assembly overcomes respectively the application force of left spring and right spring, the left plunger of synchronous promotion and right plunger move downward, fluid in left pressure chamber and right pressure chamber all by compression, left pressure chamber and right pressure chamber are discharged the fluid of equivalent, the high-voltage oil liquid of left pressure chamber is by pipeline five, pipeline three, the 4th check valve, pipeline one enters in the left cylinder cavity of resorption of left lifting cylinder, the high-voltage oil liquid of right pressure chamber is by pipeline six, pipeline four, the second check valve, pipeline two enters in the right cylinder cavity of resorption of right lifting cylinder, from the equivalent high-voltage oil liquid of discharging in left pressure chamber and right pressure chamber, act on respectively the lower end of left cylinder piston and right cylinder piston, overcome the Action of Gravity Field of weight, promote left cylinder piston and right cylinder piston upward movement, and guarantee the displacement that two oil cylinders are identical, namely realize the synchronous lifting of weight, when moving downward, the left plunger of depression bar components drive and right plunger touch after loader intracavity bottom, when depression bar assembly upwards swings centered by bearing pin, left spring and right spring be synchronous left plunger and the right plunger upward movement of promoting respectively, in left pressure chamber and right pressure chamber, all form negative pressure and can suck fluid from outside, left pressure chamber is by pipeline five, pipeline three, the 3rd check valve, pipeline seven sucks fluid from fuel tank, right pressure chamber is by pipeline six, pipeline four, the first check valve, pipeline eight sucks fluid from fuel tank, because the displacement of left plunger and right plunger upward movement is subject to the restriction of depression bar assembly, left plunger and right plunger can only be with identical speed upward movements, and keep identical displacement, left pressure chamber and right pressure chamber suck the fluid of equivalent from outside.By repeating above course of action, can constantly upwards promote left cylinder piston and right cylinder piston, and guarantee the displacement that two oil cylinders are identical, realize the continuous synchronization lifting of weight.
(2), the stop of weight: first throttle valve, the second flow regulating valve, the 3rd flow regulating valve, the 4th flow regulating valve are respectively in closed condition.In the time that depression bar assembly stops swinging, the Action of Gravity Field of weight is on left cylinder piston and right cylinder piston, in left cylinder cavity of resorption and right cylinder cavity of resorption, form corresponding oil pressure, and acting in opposition is in the oil outlet of the 4th check valve and the second check valve, make the 4th check valve and the second check valve in closed condition, fluid in left cylinder cavity of resorption and right cylinder cavity of resorption cannot flow out, and weight is in stop state.
(3), the multi-cylinder synchronous of weight declines: continue to close first throttle valve, the 3rd flow regulating valve, and open the second flow regulating valve, the 4th flow regulating valve.The Action of Gravity Field of weight is on left cylinder piston and right cylinder piston, in left cylinder cavity of resorption and right cylinder cavity of resorption, form corresponding oil pressure, high-voltage oil liquid in left cylinder cavity of resorption can pass through the 4th flow regulating valve, pipeline five flows in the left pressure chamber of left loader, promoting left plunger moves up, high-voltage oil liquid in right cylinder cavity of resorption can pass through the second flow regulating valve, pipeline six flows in the right pressure chamber of right loader, promoting right plunger moves up, because the displacement of left plunger and right plunger upward movement is subject to the restriction of depression bar assembly, left plunger and right plunger can only be with identical speed upward movements, and keep identical displacement, that is to say, the volume that flows in the left pressure chamber of left loader and flow into the fluid in the right pressure chamber of right loader is identical, the volume that is the fluid of left cylinder cavity of resorption and the discharge of right cylinder cavity of resorption is identical, left cylinder piston and right cylinder piston have formed identical downward displacement, the multi-cylinder synchronous of having realized weight declines.When left plunger and right plunger move upward to behind top, close the second flow regulating valve, the 4th flow regulating valve, open first throttle valve, the 3rd flow regulating valve, and operate depression bar assembly centered by bearing pin during to lower swing, depression bar assembly overcomes respectively the application force of left spring and right spring, the left plunger of synchronous promotion and right plunger move downward, in left pressure chamber and right pressure chamber, can discharge the fluid of equivalent, fluid in left pressure chamber is by pipeline five, pipeline three, the 3rd flow regulating valve, pipeline seven is got back in fuel tank, fluid in right pressure chamber is by pipeline six, pipeline four, first throttle valve, pipeline eight is got back in fuel tank.Touch after loader intracavity bottom when the left plunger of depression bar components drive and right plunger move downward, again close first throttle valve, the 3rd flow regulating valve, and open the second flow regulating valve, the 4th flow regulating valve.By repeating above course of action, can constantly move down left cylinder piston and right cylinder piston, and guarantee the displacement that two oil cylinders are identical, the continuous synchronization that realizes weight declines.
A kind of multi-cylinder synchronous lifting mechanism provided by the invention, simple in structure, reliable operation, can fully guarantee the steady lifting of multi-cylinder synchronous and the decline of large scale weight.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the key seat not showing in Fig. 1, the schematic diagram of bearing pin;
Fig. 3 is the structural scheme of mechanism of depression bar assembly.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of multi-cylinder synchronous lifting mechanism, comprise: left lifting cylinder 2, right lifting cylinder 3, left loader 4, right loader 5, key seat 6, bearing pin 7, depression bar assembly 8, fuel tank 9, first throttle valve 10, the second flow regulating valve 12, the 3rd flow regulating valve 15, the 4th flow regulating valve 17, the first check valve 11, the second check valve 13, the 3rd check valve 14, the 4th check valve 16 and some pipelines, pipeline comprises pipeline one 2-7, pipeline two 3-7, pipeline three 14-1, pipeline four 11-1, pipeline five 4-5, pipeline six 5-5, pipeline seven 9-1, pipeline eight 9-2.
Left loader 4 comprises left plunger 4-1, left cylinder 4-2, left pressure chamber 4-3, left spring 4-4.The lower seal of left plunger 4-1 is arranged on the inside of left cylinder 4-2, and form left pressure chamber 4-3, the bottom of left plunger 4-1 is also provided with left plunger cavity 4-6, the top of left spring 4-4 is arranged in left plunger cavity 4-6, the upper end of the upper end of left spring 4-4 and left plunger cavity 4-6 offsets, the lower end of left spring 4-4 and left cylinder 4-2 interior lower end offset, when the upper end of left plunger 4-1 is subject to External Force Acting, overcome the application force of left spring 4-4, left plunger 4-1 moves downward, fluid pressurized in left pressure chamber 4-3 contracts and can discharge, when removing the external force action of left plunger 4-1 upper end, left plunger 4-1 upward movement under the effect of left spring 4-4, in left pressure chamber 4-3, produce negative pressure and can suck fluid from outside.
As preferred version, the quantity of lifting cylinder can be 2, can be also multiple.
As preferred version, the quantity of loader can be 2, can be also multiple.
As preferred version, check valve and flow regulating valve can be separate elements, can be also the assembly sets of check valve and flow regulating valve.
As preferred version, lifting cylinder can be piston cylinder, also can plunger case.
A kind of principle of work of multi-cylinder synchronous lifting mechanism:
(1), the multi-cylinder synchronous lifting of weight 1: first throttle valve 10, the second flow regulating valve 12, the 3rd flow regulating valve 15, the 4th flow regulating valve 17 are respectively in closed condition.Operation depression bar assembly 8, when depression bar assembly 8 is centered by bearing pin 7 during to lower swing, depression bar assembly 8 overcomes respectively the application force of left spring 4-4 and right spring 5-4, the left plunger 4-1 of synchronous promotion and right plunger 5-1 move downward, fluid in left pressure chamber 4-3 and right pressure chamber 5-3 all by compression, left pressure chamber 4-3 and right pressure chamber 5-3 discharge the fluid of equivalent, high-voltage oil liquid in left pressure chamber 4-3 is by pipeline five 4-5, pipeline three 14-1, the 4th check valve 16, pipeline one 2-7 enters in the left cylinder cavity of resorption 2-4 of left lifting cylinder 2, high-voltage oil liquid in right pressure chamber 5-3 is by pipeline six 5-5, pipeline four 11-1, the second check valve 13, pipeline two 3-7 enter in the right cylinder cavity of resorption 3-4 of right lifting cylinder 3, from the equivalent high-voltage oil liquid of discharging in left pressure chamber 4-3 and right pressure chamber 5-3, act on respectively the lower end of left cylinder piston 2-3 and right cylinder piston 3-3, overcome the Action of Gravity Field of weight, promote left cylinder piston 2-3 and right cylinder piston 3-3 upward movement, and guarantee the displacement that two oil cylinders are identical, namely realize the synchronous lifting of weight, move downward and touch after loader intracavity bottom when depression bar assembly 8 promotes left plunger 4-1 and right plunger 5-1, when depression bar assembly 8 upwards swings centered by bearing pin 7, left spring 4-4 and right spring 5-4 be synchronous left plunger 4-1 and the right plunger 5-1 upward movement of promoting respectively, in left pressure chamber 4-3 and right pressure chamber 5-3, all form negative pressure and can suck fluid from outside, left pressure chamber 4-3 is by pipeline five 4-5, pipeline three 14-1, the 3rd check valve 14, pipeline seven 9-1 suck fluid from fuel tank 9, right pressure chamber 5-3 is by pipeline six 5-5, pipeline four 11-1, the first check valve 11, pipeline eight 9-2 suck fluid from fuel tank 9, because the displacement of left plunger 4-1 and right plunger 5-1 upward movement is subject to the restriction of depression bar assembly 8, left plunger 4-1 and right plunger 5-1 can only be with identical speed upward movements, and keep identical displacement, left pressure chamber 4-3 and right pressure chamber 5-3 suck the fluid of equivalent from outside.By repeating above course of action, can constantly upwards promote left cylinder piston 2-3 and right cylinder piston 3-3, and guarantee the displacement that two oil cylinders are identical, realize the continuous synchronization lifting of weight.
(2), the stop of weight 1: first throttle valve 10, the second flow regulating valve 12, the 3rd flow regulating valve 15, the 4th flow regulating valve 17 are respectively in closed condition.In the time that depression bar assembly 8 stops swinging, the Action of Gravity Field of weight 1 is on left cylinder piston 2-3 and right cylinder piston 3-3, in left cylinder cavity of resorption 2-4 and right cylinder cavity of resorption 3-4, form corresponding oil pressure, and acting in opposition is in the oil outlet of the 4th check valve 16 and the second check valve 13, make the 4th check valve 16 and the second check valve 13 in closed condition, fluid in left cylinder cavity of resorption 2-4 and right cylinder cavity of resorption 3-4 cannot flow out, and weight 1 is in stop state.
(3), the multi-cylinder synchronous of weight 1 declines: continue to close first throttle valve 10, the 3rd flow regulating valve 15, and open the second flow regulating valve 12, the 4th flow regulating valve 17.The Action of Gravity Field of weight 1 is on left cylinder piston 2-3 and right cylinder piston 3-3, in left cylinder cavity of resorption 2-4 and right cylinder cavity of resorption 3-4, form corresponding oil pressure, high-voltage oil liquid in left cylinder cavity of resorption 2-4 can pass through the 4th flow regulating valve 17, pipeline five 4-5 flow in the left pressure chamber 4-3 of left loader 4, promoting left plunger 4-1 moves up, high-voltage oil liquid in right cylinder cavity of resorption 3-4 can pass through the second flow regulating valve 12, pipeline six 5-5 flow in the right pressure chamber 5-3 of right loader 5, promoting right plunger 5-1 moves up, because the displacement of left plunger 4-1 and right plunger 5-1 upward movement is subject to the restriction of depression bar assembly 8, left plunger 4-1 and right plunger 5-1 can only be with identical speed upward movements, and keep identical displacement, that is to say, the volume that flows in the left pressure chamber 4-3 of left loader 4 and flow into the fluid in the right pressure chamber 5-3 of right loader 5 is identical, the volume that is the fluid of left cylinder cavity of resorption 2-4 and right cylinder cavity of resorption 3-4 discharge is identical, left cylinder piston 2-3 and right cylinder piston 3-3 have formed identical downward displacement, the multi-cylinder synchronous of having realized weight 1 declines.When left plunger 4-1 and right plunger 5-1 move upward to behind top, close the second flow regulating valve 12, the 4th flow regulating valve 17, open first throttle valve 10, the 3rd flow regulating valve 15, and operate depression bar assembly 8 centered by bearing pin 7 during to lower swing, depression bar assembly 8 overcomes respectively the application force of left spring 4-4 and right spring 5-4, the left plunger 4-1 of synchronous promotion and right plunger 5-1 move downward, in left pressure chamber 4-3 and right pressure chamber 5-3, can discharge the fluid of equivalent, fluid in left pressure chamber 4-3 is by pipeline five 4-5, pipeline three 14-1, the 3rd flow regulating valve 15, pipeline seven 9-1 get back in fuel tank 9, fluid in right pressure chamber 5-3 is by pipeline six 5-5, pipeline four 11-1, first throttle valve 10, pipeline eight 9-2 get back in fuel tank 9.Move downward and touch after loader intracavity bottom when depression bar assembly 8 promotes left plunger 4-1 and right plunger 5-1, again close first throttle valve 10, the 3rd flow regulating valve 15, and open the second flow regulating valve 12, the 4th flow regulating valve 17.By repeating above course of action, can constantly move down left cylinder piston 2-3 and right cylinder piston 3-3, and guarantee the displacement that two oil cylinders are identical, the continuous synchronization that realizes weight declines.
A kind of multi-cylinder synchronous lifting mechanism provided by the invention, simple in structure, reliable operation, can fully guarantee the steady lifting of multi-cylinder synchronous and the decline of large scale weight.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a multi-cylinder synchronous lifting mechanism, it is characterized in that comprising: left lifting cylinder, right lifting cylinder, left loader, right loader, key seat, bearing pin, depression bar assembly, fuel tank, first throttle valve, the second flow regulating valve, the 3rd flow regulating valve, the 4th flow regulating valve, the first check valve, the second check valve, the 3rd check valve, the 4th check valve and some pipelines, pipeline comprises pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight;
Described left lifting cylinder and right lifting cylinder are placed in respectively the left and right sides of weight that mechanism lifts below; Described left lifting cylinder comprises left cylinder epicoele, left cylinder piston rod, left cylinder piston, left cylinder cavity of resorption, left cylinder cylinder barrel, left cylinder exhaust gear, the left side of described left cylinder piston rod and weight below offsets, described left cylinder epicoele is connected with atmosphere by the left cylinder exhaust gear being arranged on left cylinder cylinder barrel, described left cylinder cavity of resorption passes into high pressure oil, act on the lower end of left cylinder piston, can promote the gravity that left cylinder piston and left cylinder piston rod overcome weight, realize the upwards lifting of left side of weight; Described right lifting cylinder comprises right cylinder epicoele, right cylinder piston rod, right cylinder piston, right cylinder cavity of resorption, right cylinder cylinder barrel, right cylinder exhaust gear, the right side of right cylinder piston rod and weight below offsets, right cylinder epicoele is connected with atmosphere by the right cylinder exhaust gear being arranged on right cylinder cylinder barrel, described right cylinder cavity of resorption passes into high pressure oil, act on the lower end of right cylinder piston, can promote the gravity that right cylinder piston and right cylinder piston rod overcome weight, realize the upwards lifting of right side of weight; Described left cylinder cavity of resorption and right cylinder cavity of resorption pass into the high pressure oil of same traffic, and high pressure oil can promote left cylinder piston and left cylinder piston rod and right cylinder piston and right cylinder piston rod and overcome with identical speed the gravity of weight, realizes the synchronous lifting in left and right of weight;
Described left loader comprises left plunger, left cylinder, left pressure chamber, left spring, the lower seal of described left plunger is arranged on the inside of left cylinder, and form left pressure chamber, the bottom of described left plunger is also provided with left plunger cavity, the top of left spring is arranged in left plunger cavity, the upper end of left spring and the upper end of left plunger cavity offset, the lower end of left spring and left cylinder interior lower end offset, when the upper end of left plunger is subject to External Force Acting, overcome the application force of left spring, left plunger moves downward, fluid pressurized in left pressure chamber contracts and can discharge, when removing the external force action of left plunger upper end, left plunger is upward movement under the effect of left spring, in left pressure chamber, produce negative pressure and can suck fluid from outside,
Described right loader comprises right plunger, right cylinder body, right pressure chamber, right spring, the lower seal of described right plunger is arranged on the inside of right cylinder body, and form right pressure chamber, the bottom of described right plunger is also provided with right plunger cavity, the top of right spring is arranged in right plunger cavity, the upper end of right spring and the upper end of right plunger cavity offset, the lower end of right spring and right cylinder interior lower end offset, when the upper end of right plunger is subject to External Force Acting, overcome the application force of right spring, right plunger moves downward, fluid pressurized in right pressure chamber contracts and can discharge, when removing the external force action of right plunger upper end, right plunger is upward movement under the effect of right spring, in right pressure chamber, produce negative pressure and can suck fluid from outside,
Described depression bar assembly comprises left depression bar, right depression bar, pipe link, the rear end of described left depression bar and the rear end of right depression bar link into an integrated entity by pipe link, the front end of left depression bar and the front end of right depression bar offer respectively through hole, and form hinged by bearing pin and key seat, key seat is fixedly mounted in frame, depression bar assembly can swing up and down centered by bearing pin, the right plunger upper end of the left plunger upper end of left loader and right loader offsets with the lower edge of depression bar assembly respectively, when depression bar assembly is centered by bearing pin during to lower swing, depression bar assembly overcomes respectively the application force of left spring and right spring, the left plunger of synchronous promotion and right plunger move downward, fluid in left pressure chamber and right pressure chamber all by compression, left pressure chamber and right pressure chamber are discharged the fluid of equivalent, in the time that depression bar assembly upwards swings centered by bearing pin, left spring and right spring be synchronous left plunger and the right plunger upward movement of promoting respectively, all formation negative pressure in left pressure chamber and right pressure chamber, and can suck fluid from outside, because the displacement of left plunger and right plunger upward movement is subject to the restriction of depression bar assembly, left plunger and right plunger can only be with identical speed upward movements, and keep identical displacement, and left pressure chamber and right pressure chamber suck the fluid of equivalent from outside,
Described fuel tank is connected with the oil inlet of the 3rd check valve and the oil inlet of the 3rd flow regulating valve respectively by pipeline seven; Be connected with the oil inlet of the first check valve and the oil inlet of first throttle valve respectively by pipeline eight; The left pressure chamber of described left loader is connected with oil outlet, the oil outlet of the 3rd flow regulating valve and the oil inlet of the 4th check valve of the 3rd check valve, the oil inlet of the 4th flow regulating valve respectively by pipeline five; The right pressure chamber of described right loader is connected with oil outlet, the oil outlet of first throttle valve and the oil inlet of the second check valve of the first check valve, the oil inlet of the second flow regulating valve respectively by pipeline six; The left cylinder cavity of resorption of described left lifting cylinder is connected with the oil outlet of the 4th check valve and the oil outlet of the 4th flow regulating valve respectively by pipeline one; The left cylinder cavity of resorption of described right lifting cylinder is connected with the oil outlet of the second check valve and the oil outlet of the second flow regulating valve respectively by pipeline two.
2. a kind of multi-cylinder synchronous lifting mechanism according to claim 1, is characterized in that: the quantity of described lifting cylinder is more than 2 or 2.
3. a kind of multi-cylinder synchronous lifting mechanism according to claim 1, is characterized in that: the quantity of described loader is more than 2 or 2.
4. a kind of multi-cylinder synchronous lifting mechanism according to claim 1, is characterized in that: described check valve and flow regulating valve are separate elements, or check valve, or the assembly set of flow regulating valve.
5. a kind of multi-cylinder synchronous lifting mechanism according to claim 1, is characterized in that: described lifting cylinder is piston cylinder or plunger case.
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|---|---|---|---|---|
| CN104097543A (en) * | 2014-06-05 | 2014-10-15 | 嘉兴职业技术学院 | Automobile seat |
| CN104150395A (en) * | 2014-07-31 | 2014-11-19 | 麦特汽车服务股份有限公司 | Lifting system and control method thereof |
| CN107882788A (en) * | 2017-12-14 | 2018-04-06 | 贵州大学 | A kind of position and the adjustable hydraulic control system of speed |
| CN108788871A (en) * | 2018-08-06 | 2018-11-13 | 宁波海天精工股份有限公司 | A kind of automatic lifting head library |
| CN114263815A (en) * | 2021-12-20 | 2022-04-01 | 王翘楚 | Portable real-time monitoring miniature weather station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330647A (en) * | 1969-12-30 | 1973-09-19 | Bushnell S W | Multistage lift |
| CN2087616U (en) * | 1988-07-30 | 1991-10-30 | 武汉钢铁学院 | Multi-cylinder synchronous controller for hydraulic elevator |
| JP2004217396A (en) * | 2003-01-17 | 2004-08-05 | Quality:Kk | Table lifter |
| CN101367488A (en) * | 2008-09-02 | 2009-02-18 | 芜湖市银鸿液压件有限公司 | Hydraulic lifting apparatus |
| CN201250084Y (en) * | 2008-05-09 | 2009-06-03 | 太仓高德升降机有限公司 | Multicylinder synchronous hydraulic elevator |
-
2014
- 2014-02-24 CN CN201410061098.1A patent/CN103771287B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330647A (en) * | 1969-12-30 | 1973-09-19 | Bushnell S W | Multistage lift |
| CN2087616U (en) * | 1988-07-30 | 1991-10-30 | 武汉钢铁学院 | Multi-cylinder synchronous controller for hydraulic elevator |
| JP2004217396A (en) * | 2003-01-17 | 2004-08-05 | Quality:Kk | Table lifter |
| CN201250084Y (en) * | 2008-05-09 | 2009-06-03 | 太仓高德升降机有限公司 | Multicylinder synchronous hydraulic elevator |
| CN101367488A (en) * | 2008-09-02 | 2009-02-18 | 芜湖市银鸿液压件有限公司 | Hydraulic lifting apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097543A (en) * | 2014-06-05 | 2014-10-15 | 嘉兴职业技术学院 | Automobile seat |
| CN104150395A (en) * | 2014-07-31 | 2014-11-19 | 麦特汽车服务股份有限公司 | Lifting system and control method thereof |
| CN107882788A (en) * | 2017-12-14 | 2018-04-06 | 贵州大学 | A kind of position and the adjustable hydraulic control system of speed |
| CN108788871A (en) * | 2018-08-06 | 2018-11-13 | 宁波海天精工股份有限公司 | A kind of automatic lifting head library |
| CN114263815A (en) * | 2021-12-20 | 2022-04-01 | 王翘楚 | Portable real-time monitoring miniature weather station |
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| CN103771287B (en) | 2016-02-10 |
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Effective date of registration: 20190529 Address after: 213125 No. 99 Qingyang Road, Xuejiazhen, Xinbei District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU QIFENG CONTINUOUS EXTRUSION EQUIPMENT Co.,Ltd. Address before: 213022 No. 200 Jinling North Road, Xinbei District, Changzhou, Jiangsu Patentee before: CHANGZHOU CAMPUS OF HOHAI University |