CN207246146U - Multicylinder synchronous hydraulic machine with balance plate - Google Patents
Multicylinder synchronous hydraulic machine with balance plate Download PDFInfo
- Publication number
- CN207246146U CN207246146U CN201721317934.3U CN201721317934U CN207246146U CN 207246146 U CN207246146 U CN 207246146U CN 201721317934 U CN201721317934 U CN 201721317934U CN 207246146 U CN207246146 U CN 207246146U
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- Prior art keywords
- balance plate
- hydraulic machine
- synchronous hydraulic
- multicylinder
- cylinder
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 29
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 230000008602 contraction Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 11
- 230000005484 gravity Effects 0.000 description 10
- 239000012530 fluid Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of multicylinder synchronous hydraulic machine with balance plate, with drive control unit and hydraulic lifting unit, the drive control unit controls rising or falling for the hydraulic lifting unit, the hydraulic lifting unit includes multiple telscoping hydaulic cylinders, each telscoping hydaulic cylinder has outer cylinder and is sequentially sleeved at that outer cylinder is interior and the multistage inner cylinder tube of movable stretching, multiple telscoping hydaulic cylinders are all fixed with balance plate between the inner cylinder tube of the same level-one with identical protrusion height from outside to inside.The multicylinder synchronous hydraulic function with balance plate of the utility model ensures hydraulic press stress equalization, so as to ensure that hydraulic press operates steadily, securely and reliably.
Description
Technical field
The present invention relates to a kind of hydraulic press, more particularly to a kind of multicylinder synchronous hydraulic machine with balance plate.
Background technology
Existing multicylinder synchronous hydraulic machine is usually made of elevating mechanism, hydraulic mechanism, electric control mechanism, supporting mechanism
A kind of lifting device.Its main operational principle is：When needing to rise, hydraulic oil is formed by the vane pump of electric control mechanism
Certain pressure, enters fluid cylinder lower end through oil filter, solenoid directional control valve, throttle valve, hydraulic control one-way valve, balanced valve, makes fluid cylinder
Piston upwards, lifting heavy.When elevating mechanism declines, i.e., weight declines, and the piston of fluid cylinder moves downward, hydraulic oil warp
Explosion-proof type solenoid directional control valve enters fluid cylinder upper end, and the oil return of fluid cylinder lower end is through balanced valve, hydraulic control one-way valve, throttle valve, electromagnetic switch
Valve returns to fuel tank.
However, above-mentioned multicylinder synchronous hydraulic machine is in actual use, it can run into and a variety of treat loads.If treat loads
Center of gravity be located at hydraulic press support platform middle part, then hydraulic press operate steadily；If treating, the center of gravity of loads is not located at hydraulic pressure
The middle part of the support platform of machine, then multiple hydraulic cylinders can be easily led to due to oil pressure difference during elevated there are difference in height
The elevating mechanism local pressure of hydraulic press is excessive and damages.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiencies of the prior art, there is provided one kind has balance plate
Multicylinder synchronous hydraulic machine, ensure to run simultaneously when the multiple hydraulic cylinders of hydraulic press are flexible, lift the security of Multi-cylinder hydraulic press
And reliability.
Technical problem to be solved in the utility model is achieved by the following technical solution：
A kind of multicylinder synchronous hydraulic machine with balance plate, has drive control unit and hydraulic lifting unit, the drive
Dynamic control unit controls rising or falling for the hydraulic lifting unit, and the hydraulic lifting unit includes multiple telescopic sleeves
Hydraulic cylinder, each telscoping hydaulic cylinder have outer cylinder and are sequentially sleeved in outer cylinder and can live from outside to inside
The dynamic multistage inner cylinder tube stretched out, wherein, multiple telscoping hydaulic cylinders are in the same level-one with identical protrusion height
Balance plate is all fixed between inner cylinder tube.
Preferably, the multiple telscoping hydaulic cylinder has contraction state, the multiple flexible in contraction state
The inner sleeve of formula sleeve hydraulic cylinder is retracted in the outer cylinder, and multiple balance plates are superimposed together successively.
Preferably, the multicylinder synchronous hydraulic machine with balance plate is four cylinder synchronous hydraulic machines, the hydraulic lifting list
Member includes four telscoping hydaulic cylinders.
Preferably, the balance plate and the inner cylinder tube are connected by welding or being bolted.
In certain embodiments, the balance plate is rectangular.
In further embodiments, the balance plate is rounded.
The balance plate is triangular in shape in yet other embodiments,.
Preferably, the middle part of the balance plate is equipped with circular through hole, and the area of the through hole is not more than the balance plate face
Long-pending 1/2.
In certain embodiments, support platform is additionally provided with the top of the hydraulic lifting unit, in the support platform
Equipped with force snesor, the force snesor is connected with the drive control unit, the multi-cylinder synchronous liquid with balance plate
Press also includes pressure-indication means, and the pressure-indication means are connected with the force snesor.
Preferably, the pressure-indication means include two pressure indicator lights, are respectively red light and green light.
In conclusion the utility model is avoided by the balance plate that is all connected on the same level-one inner cylinder tube of Multi-cylinder hydraulic press
Pressure differential between hydraulic cylinder causes the lifting speed of multiple hydraulic cylinders uneven, ensures that hydraulic press operates steadily, securely and reliably.
Brief description of the drawings
For the structure diagram of the multicylinder synchronous hydraulic machine with balance plate of embodiment one, (lifting unit is in attached drawing 1
Extended configuration)；
Attached drawing 2 is the structure diagram of balance plate in embodiment one；
Wherein, 1- drive control units；3- hydraulic lifting units；31- bases；32- outer cylinders；33-inner cylinder tube；34- is put down
Weigh plate；341- perforates；342- circular through holes；4- support platforms.
Embodiment
The preferred embodiment of the invention is described in detail below in conjunction with attached drawing：
Embodiment one
Four cylinder synchronous hydraulic machines shown in Fig. 1, including drive control unit 1, hydraulic lifting unit 3, support platform 4, institute
The drive control unit 1 stated mainly includes motor 11, vane pump, check valve, solenoid valve, fuel reserve tank etc., when startup motor, motor
Blade oil pump feed is driven, fluid presses lifting unit 3 through check valve and electromagnetism valve passage influent, so as to control hydraulic lifting unit
3 are lifted.Wherein, force sensor (not shown) is set in support platform 4, and force snesor is connected with control unit 1
Connect.
The present embodiment hydraulic lifting unit 3 includes four telscoping hydaulic cylinders, each telscoping hydaulic cylinder bag
Include outer cylinder 32, which is connected with drive control unit 1, its be used to receiving drive control unit be conveyed into it is therein
Hydraulic oil is recycled in the fuel reserve tank of electro-hydraulic combined mechanism by hydraulic oil, and four are arranged with successively from outside to inside in outer cylinder 32
Level inner cylinder tube 33, and the level Four inner cylinder tube 33 in the present embodiment in each outer cylinder 32 is coaxially disposed, four outer cylinders 32 are same
Axle center on one horizontal plane is connected to form a square, and inner cylinder tube 33 is connected with inner cylinder tube 32, two adjacent sections inner cylinder tube 33
Between be mutually telescopically connected by sealing ring (not shown), sealing ring can also play dustproof effect, by oil cylinder rise or
Decline, sealing ring automatically can clear up oil cylinder surface, so as to prevent dust or foreign matter from entering cylinder body.(stretched positioned at innermost layer
Be highest level when long) inner cylinder tube 33 be fixedly connected with 4 phase of support platform, the height of four outer cylinders 32 is identical, and each
It is also identical that the height of the inner cylinder tube 33 with level-one is in outer cylinder 32, four telscoping hydaulic cylinders are in fully loaded elongation to most
Height when long is identical.
In order to ensure stability of the hydraulic press in lifting, four telscoping hydaulic cylinders are in inner cylinder tube 33 at the same level
Between be fixedly connected with balance plate 34, as shown in Fig. 2, in the present embodiment, which is a rectangle, is more preferably in
Round rectangle, balance plate 34 is specially rounded square in the present embodiment, is opened up respectively in four corners of 34 body of balance plate
There are four perforation 341, it is also in one square that the center of circle of described four perforation 341, which is connected, and the center of circle of this four perforation 341
The square center of formation and the center of gravity of 34 body of balance plate coincide.According to actual conditions, balance plate 34 can also be circle
Shape, corresponding four perforation 341 are spread evenly across the circle on the position of neighboring.Due to inner cylinder tube 33 outside diameter from
It is outer to be sequentially reduced to interior, therefore, the outside diameter of the aperture of the perforation 341 on balance plate 34 not at the same level and the inner cylinder tube 33 of corresponding stage
Match, to ensure that the inner cylinder tube 33 accordingly saved passes through perforation 341 and in the end of every section outer cylinder 33 and 341 inner wall phases of perforating
It is fixedly connected.In this way, since the height of the inner cylinder tube 33 with level-one is identical, multiple 34 parallel settings of balance plate, in order to
The dead weight of hydraulic lifting unit 3 is further reduced, circular through hole 342 is also opened up at the center of balance plate 34.More preferably, in order to protect
Demonstrate,prove the intensity of balance plate, 1/2 of area no more than balance plate suqare of circular through hole 342.And in order to more beautiful, prevent dust
Into hydraulic lifting unit, the periphery of hydraulic lifting unit can also be arranged PVC protective covers.
The present embodiment hydraulic lifting unit 3, which has, to be stretched and shrinks two kinds of working statuses, in extended configuration, with level-one
Cylinder barrel 33 rises to setting height successively under the control of drive control unit, and multiple balance plates 34 are parallel, as shown in Figure 1,
It is achieved in lifting heavy, it is ensured that the speed risen with level-one inner cylinder tube 33 of multiple telscoping hydaulic cylinders is identical, avoids
Support platform 4 tilts；In a contracted state, inner cylinder tube 33 is retracted in corresponding outer cylinder 32, and multiple balance plates 34 are folded successively
It is combined, concrete operating principle and state conversion process are as follows：
When the hydraulic lifting unit of hydraulic press is in contraction state, if desired for lifting heavy, then drive control unit
Electric motor starting, motor will drive blade oil pump feed, base of the fluid through check valve and electromagnetism valve passage input hydraulic pressure lifting unit 3
31, when fluid is respectively enterd in each outer cylinder 32, under the action of oil pressure, inner cylinder tube 33 steps up, i.e., with 32 phase of outer cylinder
Four inner cylinder tubes 33 of the outermost same level-one of socket are jacked up at first, time being then connected with the inner cylinder tube 33 jacked up
The inner cylinder tube 33 of the same level-one of internal layer is jacked up again, and according to this order, level Four inner cylinder tube 33 is finally all risen, multiple balances
The setting of plate 34 ensure that 33 uphill process of inner cylinder tube of level Four is steady, also ensure that next stage telescopic oil cylinder can be smoothly oily
Liquid jacks up, and certainly, when support platform 4 reaches design height, system pressure reaches setting pressure, and pressure switch is cut off the power
Or by overflow valve off-load, oil pressure is maintained at constant operation pressure, platform can arbitrarily rest on any position of its range.
Particularly, before the rising of hydraulic lifting unit, force snesor can detect the center of gravity of the weight in support platform.When
When the center of gravity of weight is located at the middle part of support platform, hydraulic lifting unit can carry out normal vertical motion；Otherwise, hydraulic pressure liter
Drop unit can not rise.The quantity of force snesor and position can be needed according to measurement to set.Common, force snesor sets number
Measure the middle part for for 1, being arranged on support platform.More intuitively, force snesor is also connected with pressure-indication means, pressure-indication means
Comprising red light and green light, when when red, prompt the center of gravity of staff's weight to deviate, the position of weight need to be put again,
So as to avoid lifting unit from being damaged and cause security risk.It should be noted that the weight and position of centre of gravity of weight can lead to
The principle of moment balance of the prior art is crossed to measure, details are not described herein for the present embodiment.
Embodiment two
What is different from the first embodiment is that multiple force snesors are directly arranged on each telescopic sleeve hydraulic pressure by the present embodiment
The surface of cylinder, such as four telscoping hydaulic cylinders correspond to four pressure sensors.Embodiment one is to measure the center of gravity of weight
Position, and the present embodiment directly measures the pressure that each telscoping hydaulic cylinder is directly born.When any one telescopic set
When the pressure that cylinder hydraulic cylinder is subject to exceedes threshold value, hydraulic lifting unit is also without work.
Embodiment three
What is different from the first embodiment is that the present embodiment has three telscoping hydaulic cylinders, it is in same level
Axle center be connected to form an equilateral triangle.The quantity of corresponding outer cylinder is also three in the present embodiment, corresponding balance
Plate is an equilateral triangle, is preferably fillet equilateral triangle.Three perforation are offered respectively in three corners of balance plate body, should
It also be in an equilateral triangle that the centers of circle of three perforation, which are connected, and the square center of gravity and balance plate sheet that this three perforation centers of circle are formed
The center of gravity of body coincides.
The hydraulic lifting unit of the synchronous hydraulic machine of the utility model realizes support platform using multicylinder synchronous hydraulic cylinder
Rise and fall, ensure that lifting is same by the balance plate being connected with the inner cylinder tube of the same level-one on multiple telscoping hydaulic cylinders
Step, and support to set force snesor on platform, can find to treat whether the placement position of loads rationally or ensures each to stretch in time
The pressure that contracting oil cylinder is born will not be excessive, so that hydraulic lifting unit works normally, ensures that hydraulic press operates steadily, safety
Reliably.
Foregoing is the explanation to the utility model, and is not interpreted to be limited.Although it have been described that this
Some exemplary embodiments of utility model, but the person skilled in the art will easily understand be without materially departing from this practicality
In the case of new novel teachings and advantage, many modifications are possible in the exemplary embodiment.Therefore, it is all this
Modification is intended to be included within the scope of the utility model.It is to be understood that foregoing is the explanation to the utility model, and
And disclosed specific embodiment is not construed as limited to, or be limited in an invention disclosed herein, and to disclosed
The modification of embodiment and other embodiment, it is intended that be included within the scope of this disclosed invention.
Claims (10)
1. a kind of multicylinder synchronous hydraulic machine with balance plate, has drive control unit and hydraulic lifting unit, the driving
Control unit controls rising or falling for the hydraulic lifting unit, and the hydraulic lifting unit includes multiple telescopic sleeve liquid
Cylinder pressure, each telscoping hydaulic cylinder have outer cylinder and are sequentially sleeved at from outside to inside in outer cylinder and movable
The multistage inner cylinder tube of stretching, it is characterised in that：Multiple telscoping hydaulic cylinders are with the same of identical protrusion height
Balance plate is all fixed between the inner cylinder tube of level.
2. the multicylinder synchronous hydraulic machine according to claim 1 with balance plate, it is characterised in that the multiple telescopic
Sleeve hydraulic cylinder has contraction state, and in contraction state, the inner sleeve of the multiple telscoping hydaulic cylinder is retracted to
In the outer cylinder, and multiple balance plates are superimposed together successively.
3. the multicylinder synchronous hydraulic machine according to claim 1 with balance plate, it is characterised in that described that there is balance plate
Multicylinder synchronous hydraulic machine be four cylinder synchronous hydraulic machines, the hydraulic lifting unit includes four telscoping hydaulic cylinders.
4. the multicylinder synchronous hydraulic machine according to claim 1 with balance plate, it is characterised in that the balance plate and institute
It is connected by welding or being bolted to state inner cylinder tube.
5. the multicylinder synchronous hydraulic machine according to any one of claims 1 to 4, with balance plate, it is characterised in that institute
It is rectangular to state balance plate.
6. the multicylinder synchronous hydraulic machine according to any one of claims 1 to 4, with balance plate, it is characterised in that institute
It is rounded to state balance plate.
7. the multicylinder synchronous hydraulic machine according to any one of claims 1 to 4, with balance plate, it is characterised in that institute
It is triangular in shape to state balance plate.
8. the multicylinder synchronous hydraulic machine according to claim 1 with balance plate, it is characterised in that in the balance plate
Portion is equipped with circular through hole, 1/2 of area no more than the balance plate suqare of the through hole.
9. the multicylinder synchronous hydraulic machine according to claim 1 with balance plate, it is characterised in that the hydraulic lifting list
First top is additionally provided with support platform, and the support platform is equipped with force snesor, the force snesor and the drive control list
Member is connected, and the synchronous hydraulic machine also includes pressure-indication means, and the pressure-indication means are connected with the force snesor
Connect.
10. the multicylinder synchronous hydraulic machine according to claim 9 with balance plate, it is characterised in that the pressure instruction
Device includes two pressure indicator lights, is respectively red light and green light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721317934.3U CN207246146U (en) | 2017-10-13 | 2017-10-13 | Multicylinder synchronous hydraulic machine with balance plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721317934.3U CN207246146U (en) | 2017-10-13 | 2017-10-13 | Multicylinder synchronous hydraulic machine with balance plate |
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| Publication Number | Publication Date |
|---|---|
| CN207246146U true CN207246146U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721317934.3U Expired - Fee Related CN207246146U (en) | 2017-10-13 | 2017-10-13 | Multicylinder synchronous hydraulic machine with balance plate |
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| Country | Link |
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| CN (1) | CN207246146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439236A (en) * | 2018-04-26 | 2018-08-24 | 山西凌志达煤业有限公司 | The four cylinder lifting gears for mine underground work |
-
2017
- 2017-10-13 CN CN201721317934.3U patent/CN207246146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439236A (en) * | 2018-04-26 | 2018-08-24 | 山西凌志达煤业有限公司 | The four cylinder lifting gears for mine underground work |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 |