CN203806916U - Oil delivery channel structure of split type multi-cylinder synchronous lifter - Google Patents
Oil delivery channel structure of split type multi-cylinder synchronous lifter Download PDFInfo
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- CN203806916U CN203806916U CN201420253899.3U CN201420253899U CN203806916U CN 203806916 U CN203806916 U CN 203806916U CN 201420253899 U CN201420253899 U CN 201420253899U CN 203806916 U CN203806916 U CN 203806916U
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Abstract
The utility model provides an oil delivery channel structure of a split type multi-cylinder synchronous lifter. The oil delivery channel structure applied to the multi-cylinder synchronous lifter mainly comprises a main oil delivery pipe, an oil storage pipe and multiple oil branch pipes. An inner cavity of the oil storage pipe is divided into a first cavity body and a second cavity body by a porous plate which is arranged in the oil storage pipe, and a plurality of through holes which communicate the first cavity body with the second cavity body are uniformly distributed in the porous plate. An oil supply pump is communicated with the first cavity body of the oil storage pipe through the main oil delivery pipe. The oil branch pipes are connected with the hydraulic cylinders in one-to-one correspondence manner, and are communicated with the second cavity of the oil storage pipe respectively. Compared with the prior art, the oil delivery channel structure is favorable for realizing pressure uniformity of different cylinders and guaranteeing accurate synchronous motions of the cylinders.
Description
Technical field
The utility model relates to the oil transportation oil channel structures of hydraulic hoist, especially a kind of oil transportation oil channel structures of split type multi-cylinder synchronous elevator.
Background technology
In operational process, may there is the nonsynchronous phenomenon of multiple oil cylinders in multi-cylinder synchronous elevator.Mainly to be caused by following reason: the deviation of a, each oil cylinder external load, cause the resistance difference of each oil cylinder to cause overbalance, the oil cylinder displacement that wherein resistance is little will be larger; The difference of b, each oil cylinder internal friction power, between the piston of each oil cylinder and oil cylinder, the deviation of the friction between piston rod and sealing member, causes oil cylinder asynchronous; The fuel feeding oil pressure difference of hydraulic oil on the delivery line of c, each oil cylinder, causes oil cylinder to occur asynchronous; After d, oil cylinder period of service are long, there is internal leakage between piston and oil cylinder, cause oil cylinder asynchronous.
The asynchronous problem of oil cylinder causing for the above-mentioned inside and outside stressed deviation because of each oil cylinder itself, in prior art, mainly solve by the mechanical rigid synchronization structure of multiple oil cylinders, in the time that asynchrony phenomenon appears in oil cylinder, fetch and realize synchronously by mutual stronger rigid connecting.And the asynchronous problem of oil cylinder causing for the fuel feeding oil pressure difference of hydraulic oil on the delivery line of each oil cylinder is mainly on main delivery line, to increase a synchronous plate and solve by being increased in prior art.The hydraulic oil pressure of oil feed pump is become owner of and is promoted synchronous plate motion after delivery line, and synchronous plate passes to pressure the hydraulic oil in the delivery line of each oil cylinder simultaneously, and each oil cylinder is synchronized with the movement.But because delivery line is in the position distribution difference in synchronous plate front, synchronous plate when motion, according to fluid mechanics principle, the oil pressure in the delivery line of each oil cylinder still exists difference, thereby cause each oil cylinder cannot precise synchronization.
Summary of the invention
In order to overcome the defect of prior art, the purpose of this utility model is to provide one and is applied in split type multi-cylinder synchronous elevator, makes the more balanced oil transportation oil channel structures of oil pressure in the delivery line of each oil cylinder.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of oil transportation oil channel structures of split type multi-cylinder synchronous elevator, for multi-cylinder synchronous elevator, described multi-cylinder synchronous elevator comprises the hydraulic actuating cylinder of multiple synchronization liftings, it is characterized in that: described oil transportation oil channel structures comprises main transport pipe, oil storing tube and multiple oil expeller; In described oil storing tube, be provided with the orifice plate that inner chamber is divided into the first cavity and the second cavity, on described orifice plate, be evenly distributed with the through hole of described the first cavity of multiple connections and described the second cavity; Described main transport pipe is communicated with the first cavity of oil feed pump and described oil storing tube; Multiple described oil expellers and multiple described hydraulic actuating cylinder connect one to one, and the oil expeller described in each is connected with the second cavity of described oil storing tube respectively.
Wherein, described oil storing tube is coaxially connected with described main transport pipe; The caliber of described main transport pipe is greater than the caliber of described oil expeller.
More preferably, multiple described oil expellers distribute axisymmetricly taking the line of centers of described oil storing tube as axis of symmetry, the identical length of each described oil expeller with.
In specific embodiment, the through-hole aperture on described orifice plate is consistent, and the caliber of described main transport pipe is 1.1 ~ 1.25:1 with the ratio of described through-hole aperture.
Oil feed pump is pressed into the pressure oil of oil storing tube the first cavity through main transport pipe, after orifice plate, through the valve action of orifice plate, the hydraulic oil that enters oil storing tube the second cavity pressure throughout becomes more balanced, therefore, it is also more consistent that hydraulic oil enters the pressure of each oil expeller, guarantees the synchronous of each oil cylinder.Identical and the symmetrically arranged oil expeller of length, guarantees that the suffered pipe resistance of pressure oil in the oil expeller of symmetrical position is identical.
The utility model also provides a kind of improved technical scheme, is specially:
A kind of oil transportation oil channel structures of split type multi-cylinder synchronous elevator, for multi-cylinder synchronous elevator, described multi-cylinder synchronous elevator comprises the hydraulic actuating cylinder of multiple synchronization liftings, it is characterized in that: multiple secondary oil storing tubes that described oil transportation oil channel structures comprises main transport pipe, one-level oil storing tube, be connected to multiple secondary transport pipe on described one-level oil storing tube, connect one to one with described multiple secondary transport pipe and be connected to the multiple oil expellers on each described secondary oil storing tube; In described one-level oil storing tube, be provided with the one-level orifice plate that inner chamber is divided into the first cavity and the second cavity, on described one-level orifice plate, be evenly distributed with the one-level through hole of described the first cavity of multiple connections and described the second cavity; Described main transport pipe is communicated with the first cavity of oil feed pump and described one-level oil storing tube; Described in each, in secondary oil storing tube, be provided with the secondary orifice plate that inner chamber is divided into the 3rd cavity and the 4th cavity, on described secondary orifice plate, be evenly distributed with the secondary through holes of described the 3rd cavity of multiple connections and described the 4th cavity; Described in each, secondary transport pipe is communicated with the second cavity of described one-level oil storing tube and the 3rd cavity of corresponding secondary oil storing tube; Oil expeller described in each is connected the 4th cavity of a hydraulic actuating cylinder and described secondary oil storing tube respectively.
Wherein, described one-level oil storing tube is coaxially connected with described main transport pipe; The caliber of described main transport pipe is greater than the caliber of described secondary transport pipe, and the caliber of described secondary transport pipe is greater than the caliber of described oil expeller.
Preferably, multiple described secondary transport pipe distribute axisymmetricly taking the line of centers of described one-level oil storing tube as axis of symmetry.
More preferably, the quantity that is connected to the oil expeller of each described secondary oil storing tube is even number, and even number oil expeller distributes axisymmetricly taking the line of centers of described secondary oil storing tube as axis of symmetry, the identical length of each described oil expeller with.
In specific embodiment, the aperture of the one-level through hole on described one-level orifice plate is consistent, and the caliber of described main transport pipe is 1.1 ~ 1.25:1 with the ratio in the aperture of described one-level through hole; The aperture of the secondary through holes on described secondary orifice plate is consistent, and the ratio in the caliber of described secondary transport pipe and the aperture of described secondary through holes is 1.1 ~ 1.25:1.
Be pressed into the pressure oil of main transport pipe from oil feed pump, after the valve action of the orifice plate in two-stage oil storing tube, the oil pressure of the pressure oil in the oil expeller of each oil cylinder is more consistent.
Owing to adopting technique scheme, the oil transportation oil channel structures of the split type multi-cylinder synchronous elevator that the utility model provides makes the oil pressure of each oil cylinder more consistent, guarantees the accurately synchronized operation of each oil cylinder.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of the present utility model.
Fig. 2 is the structural representation of the orifice plate in the utility model.
Fig. 3 is the structural representation of the first embodiment of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is preferred embodiment elaborated.
Embodiment mono-
Refer to Fig. 1 and Fig. 2, the utility model provides a kind of oil transportation oil channel structures of split type multi-cylinder synchronous elevator, for multi-cylinder synchronous elevator.This multi-cylinder synchronous elevator comprises the hydraulic actuating cylinder 10 of 4 synchronization liftings.Described oil transportation oil channel structures comprises main transport pipe 20,30 and 4 oil expellers 40 of oil storing tube.In oil storing tube 30, be provided with the orifice plate 31 that inner chamber is divided into the first cavity 301 and the second cavity 302, on orifice plate 31, be evenly distributed with the through hole of multiple connection the first cavitys 301 and the second cavity 302.
Main transport pipe 20 is communicated with the first cavity 301 of oil feed pump and oil storing tube 30.40 and 4 hydraulic actuating cylinders 10 of 4 oil expellers connect one to one, and each oil expeller 40 is connected with the second cavity 302 of oil storing tube 30 respectively.
Wherein, oil storing tube 30 is coaxially connected with main transport pipe 20.The caliber of described main transport pipe 20 is greater than the caliber of oil expeller 40.4 oil expellers 40 distribute axisymmetricly taking the line of centers of oil storing tube 30 as axis of symmetry, the identical length of each oil expeller 40 with.4 oil expellers 40 adopt this design, can farthest guarantee that the resistance of ducting that each oil expeller 40 internal pressure oil are subject to is identical, thereby make the pressure of the pressure oil in each oil cylinder 10 consistent, thereby 4 oil cylinders are accurately synchronized with the movement.
As shown in Figure 2, the through hole 310 on orifice plate 31 is evenly distributed, and aperture is consistent.In order to reach best rectification effect, the caliber of main transport pipe 20 is 1.1 ~ 1.25:1 with the ratio in the aperture of through hole 310.
Oil feed pump is pressed into the pressure oil of the first cavity 301 of oil storing tube 30 through main transport pipe 20, after orifice plate 31, through the valve action of orifice plate 31, the pressure throughout of hydraulic oil that enters the second cavity 302 of oil storing tube 30 becomes more balanced, therefore, it is also more consistent that hydraulic oil enters the pressure of each oil expeller 40, guarantees the synchronous of each oil cylinder 10.Identical and the symmetrically arranged oil expeller 40 of length, guarantees that the suffered pipe resistance of pressure oil in the oil expeller 40 of symmetrical position is identical.
Embodiment bis-
Refer to Fig. 3, the present embodiment provides the oil transportation oil channel structures of another kind of split type multi-cylinder synchronous elevator, for multi-cylinder synchronous elevator.The multi-cylinder synchronous elevator of the present embodiment also comprises the hydraulic actuating cylinder 100 of 4 synchronization liftings.The oil transportation oil channel structures of the present embodiment comprises main transport pipe 200, one-level oil storing tube 300, secondary transport pipe 400, secondary oil storing tube 500, oil expeller 600.
Main transport pipe 200 one end are connected with oil feed pump, and the other end is connected on one-level oil storing tube 300.In one-level oil storing tube 300, be provided with the one-level orifice plate 310 that inner chamber is divided into the first cavity 301 and the second cavity 302, on one-level orifice plate 310, be evenly distributed with the one-level through hole of multiple connection the first cavitys 301 and the second cavity 302.
The quantity of secondary transport pipe 400 is 2, is connected respectively with the second cavity 302 of one-level oil storing tube 300.The shape of two secondary transport pipe 400 arranges axisymmetricly along the line of centers of oil storing tube 300, and this line of centers is perpendicular to orifice plate 310.On each secondary transport pipe 400, connect a secondary oil storing tube 500, on the each secondary oil storing tube 500 of secondary transport pipe 400, be connected with respectively two oil expellers 600.In each secondary oil storing tube 500, be provided with the secondary orifice plate 510 that inner chamber is divided into the 3rd cavity 501 and the 4th cavity 502, on secondary orifice plate 510, be evenly distributed with the secondary through holes of multiple connections the 3rd cavity 501 and the 4th cavity 502.Each secondary transport pipe 400 is communicated with the second cavity 302 of one-level oil storing tube 300 and the 3rd cavity 501 of corresponding secondary oil storing tube 500.Each oil expeller 600 is connected the 4th cavity 502 of a hydraulic actuating cylinder 100 and secondary oil storing tube 500 respectively.Two oil expellers 600 that are connected on a secondary oil storing tube 500 arrange axisymmetricly along the line of centers of secondary oil storing tube 500.On the whole, the oil expeller 600 of two secondary oil storing tubes 500 arranges axisymmetricly with oneself line of centers of oil storing tube 300 again, and the identical length of each oil expeller 600 is same.
In the present embodiment, one-level oil storing tube 300 is coaxially connected with main transport pipe 200.The caliber of main transport pipe 200 is greater than the caliber of secondary transport pipe 400, and the caliber of secondary transport pipe 400 is greater than again the caliber of oil expeller 600.
The aperture of the one-level through hole on one-level orifice plate 301 is consistent, and the caliber of main transport pipe 200 is 1.1 ~ 1.25:1 with the ratio in the aperture of described one-level through hole.The aperture of the secondary through holes on secondary orifice plate 510 is consistent, and the ratio in the caliber of secondary transport pipe 400 and the aperture of secondary through holes is 1.1 ~ 1.25:1.
The oil transportation oil channel structures of the present embodiment, adopt the design of the two-stage mode of rectification of tree structure layout, be pressed into the pressure oil of main transport pipe 200 from oil feed pump, successively after the valve action of the orifice plate of one-level oil storing tube 300 and secondary oil storing tube 500, the oil pressure of the pressure oil in each oil expeller 400 is more consistent, thereby reaches the object that makes 4 oil cylinder precise synchronizations.
Above-described embodiment is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and implement according to this; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (9)
1. the oil transportation oil channel structures of a split type multi-cylinder synchronous elevator, for multi-cylinder synchronous elevator, described multi-cylinder synchronous elevator comprises the hydraulic actuating cylinder of multiple synchronization liftings, it is characterized in that: described oil transportation oil channel structures comprises main transport pipe, oil storing tube and multiple oil expeller; In described oil storing tube, be provided with the orifice plate that inner chamber is divided into the first cavity and the second cavity, on described orifice plate, be evenly distributed with the through hole of described the first cavity of multiple connections and described the second cavity; Described main transport pipe is communicated with the first cavity of oil feed pump and described oil storing tube; Multiple described oil expellers and multiple described hydraulic actuating cylinder connect one to one, and the oil expeller described in each is connected with the second cavity of described oil storing tube respectively.
2. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 1, is characterized in that: described oil storing tube is coaxially connected with described main transport pipe; The caliber of described main transport pipe is greater than the caliber of described oil expeller.
3. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 2, is characterized in that: multiple described oil expellers distribute axisymmetricly taking the line of centers of described oil storing tube as axis of symmetry, the identical length of each described oil expeller with.
4. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 1, is characterized in that: the through-hole aperture on described orifice plate is consistent, and the caliber of described main transport pipe is 1.1 ~ 1.25:1 with the ratio of described through-hole aperture.
5. the oil transportation oil channel structures of a split type multi-cylinder synchronous elevator, for multi-cylinder synchronous elevator, described multi-cylinder synchronous elevator comprises the hydraulic actuating cylinder of multiple synchronization liftings, it is characterized in that: multiple secondary oil storing tubes that described oil transportation oil channel structures comprises main transport pipe, one-level oil storing tube, be connected to multiple secondary transport pipe on described one-level oil storing tube, connect one to one with described multiple secondary transport pipe and be connected to the multiple oil expellers on each described secondary oil storing tube; In described one-level oil storing tube, be provided with the one-level orifice plate that inner chamber is divided into the first cavity and the second cavity, on described one-level orifice plate, be evenly distributed with the one-level through hole of described the first cavity of multiple connections and described the second cavity; Described main transport pipe is communicated with the first cavity of oil feed pump and described one-level oil storing tube; Described in each, in secondary oil storing tube, be provided with the secondary orifice plate that inner chamber is divided into the 3rd cavity and the 4th cavity, on described secondary orifice plate, be evenly distributed with the secondary through holes of described the 3rd cavity of multiple connections and described the 4th cavity; Described in each, secondary transport pipe is communicated with the second cavity of described one-level oil storing tube and the 3rd cavity of corresponding secondary oil storing tube; Oil expeller described in each is connected the 4th cavity of a hydraulic actuating cylinder and described secondary oil storing tube respectively.
6. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 5, is characterized in that: described one-level oil storing tube is coaxially connected with described main transport pipe; The caliber of described main transport pipe is greater than the caliber of described secondary transport pipe, and the caliber of described secondary transport pipe is greater than the caliber of described oil expeller.
7. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 6, is characterized in that: multiple described secondary transport pipe distribute axisymmetricly taking the line of centers of described one-level oil storing tube as axis of symmetry.
8. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 7, it is characterized in that: the quantity that is connected to the oil expeller of each described secondary oil storing tube is even number, even number oil expeller distributes axisymmetricly taking the line of centers of described secondary oil storing tube as axis of symmetry, the identical length of each described oil expeller with.
9. the oil transportation oil channel structures of split type multi-cylinder synchronous elevator according to claim 5, it is characterized in that: the aperture of the one-level through hole on described one-level orifice plate is consistent, and the caliber of described main transport pipe is 1.1 ~ 1.25:1 with the ratio in the aperture of described one-level through hole; The aperture of the secondary through holes on described secondary orifice plate is consistent, and the ratio in the caliber of described secondary transport pipe and the aperture of described secondary through holes is 1.1 ~ 1.25:1.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103991781A (en) * | 2014-05-16 | 2014-08-20 | 太仓高德升降机有限公司 | Oil transportation line structure of split type multi-cylinder synchronous lifter |
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- 2014-05-16 CN CN201420253899.3U patent/CN203806916U/en not_active Withdrawn - After Issue
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103991781A (en) * | 2014-05-16 | 2014-08-20 | 太仓高德升降机有限公司 | Oil transportation line structure of split type multi-cylinder synchronous lifter |
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