CN112695833A - Horizontal-arranged combined energy-saving hydraulic cylinder and energy-saving engineering machinery - Google Patents
Horizontal-arranged combined energy-saving hydraulic cylinder and energy-saving engineering machinery Download PDFInfo
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- CN112695833A CN112695833A CN202110059197.6A CN202110059197A CN112695833A CN 112695833 A CN112695833 A CN 112695833A CN 202110059197 A CN202110059197 A CN 202110059197A CN 112695833 A CN112695833 A CN 112695833A
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- 238000013016 damping Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 9
- 239000010727 cylinder oil Substances 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
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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
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
Abstract
The invention provides a horizontally-arranged combined energy-saving hydraulic cylinder and an energy-saving engineering machine, wherein the horizontally-arranged combined energy-saving hydraulic cylinder mainly comprises two plunger type hydraulic cylinders, a single-rod piston type hydraulic cylinder, a top end face connecting plate and a bottom end face connecting plate, the three hydraulic cylinders are welded through the connecting plates, and the arrangement mode of the three hydraulic cylinders is horizontal arrangement; the bottom plate passes through bolted connection with the apron, adds between bottom plate and the apron and is equipped with the damping piece, and the apron outside adds has the earrings, is convenient for with being connected of external device. The invention combines the advantages of two hydraulic cylinders, and overcomes the working defect of a single hydraulic cylinder; the energy-saving engineering machine mainly comprises a combined energy-saving hydraulic cylinder, an energy-saving control system and an engineering machine body which are horizontally arranged. The energy-saving control system mainly comprises a pressure sensor group, a valve group controller, a hydraulic accumulator opening and closing valve group and a hydraulic accumulator, wherein the engineering machinery body is selected as an excavator.
Description
The invention belongs to the field of innovation of hydraulic cylinders, and particularly relates to a combined energy-saving hydraulic cylinder.
Background
In engineering machinery, hydraulic cylinders are often used for a loader, an excavator, a static pile press and the like, the engineering machinery needs to work under different working conditions, such as high pressure, high speed and the like, a plurality of new requirements are also provided for the hydraulic cylinders, the traditional hydraulic cylinders comprise piston cylinders, plunger cylinders, swing cylinders and the like, the hydraulic cylinders have more or less defects, and the improvement on the basis of the original hydraulic cylinders is very difficult. The combined hydraulic cylinder has attracted extensive attention and discussion of people at present.
The current combined hydraulic cylinder mainly comprises:
1. a combined hydraulic cylinder is formed by two piston type hydraulic cylinders: the piston rod of one piston type hydraulic cylinder is the cylinder body of the other piston type hydraulic cylinder. The method is characterized in that: 1) the working is reliable, the performance is stable, the structure is simple, and the combination of a plurality of pressure cavities can be realized; 2) the speed control is convenient to realize, and various speed requirements of a hook of a drilling machine and a workover rig can be particularly met. The disadvantages are as follows: the function of a large hydraulic cylinder, a long-stroke hydraulic cylinder and the like is not provided. The power and action requirements such as small power, short stroke and the like are met;
2. the multi-section cylinder barrel and the cylinder barrel are combined and connected in a conical surface meshing positioning connection mode; the fastening piece for connection adopts a hydraulic nut fastening technology; the piston sealing structure adopts a two-stage alternate sealing technology. The application has the advantages that: 1) the length of the combined cylinder barrel is several times of the length of a conventional single cylinder barrel, and the length of the combined cylinder barrel can be matched with the length of the combined cylinder barrel as long as the length of the combined cylinder barrel can be realized by a piston rod, so that the ideal values of the hydraulic cylinder for ultra-long stroke action and constant output force are achieved; 2) the device is convenient to install, adjust, disassemble and overhaul, and is particularly used in narrow or special working places where the installation and the placement are difficult and the disassembly is difficult; 3) the use cost can be directly reduced, the inner hole damage or abrasion which can be inevitably generated in the working process of the hydraulic cylinder can be reduced, and the structural style can only repair or update a certain section of cylinder barrel without replacing the full-length cylinder barrel. The disadvantages are as follows: the function of a large hydraulic cylinder, a long-stroke hydraulic cylinder and the like is not provided. The power and action requirements such as small power, short stroke and the like are met.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide a horizontally-arranged combined energy-saving hydraulic cylinder, which is suitable for most of engineering machinery and large-scale hydraulic systems, meets the requirements of large power and long stroke, is stable and reliable, and has a certain energy-saving effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
the combined hydraulic cylinder comprises a first plunger type hydraulic cylinder and a second plunger type hydraulic cylinder which are equal in size and performance, a single-rod piston type hydraulic cylinder, a top end face connecting plate bottom plate, a top end face connecting plate cover plate, a bottom end face connecting plate bottom plate, a bottom end face connecting plate cover plate, two vibration reduction sheets and four pressure sensors. Original earrings are removed from two ends of a single-rod piston type hydraulic cylinder, flat end faces are uniformly manufactured, the same end connecting plates are welded on the two end faces respectively, the original earrings are also removed from two ends of the two plunger type cylinders, the whole length of the whole single-rod piston type hydraulic cylinder is consistent with that of the single-rod piston type hydraulic cylinder, then the two end faces of the two plunger type hydraulic cylinders are welded with the end connecting plates on the single-rod piston type hydraulic cylinder, vibration reduction plates are additionally arranged in the end connecting plates, the three hydraulic cylinders are horizontally arranged, the single-rod piston type hydraulic cylinder is located in the middle, the two plunger type hydraulic cylinders are located on two sides, the three hydraulic cylinders are more stable in connection, the reliability in working is improved, the single-rod piston type hydraulic cylinder serves as a main cylinder, the two plunger type hydraulic cylinders. The four pressure sensors are respectively positioned in a rodless cavity of the single-rod piston type hydraulic cylinder, a rod cavity of the single-rod piston type hydraulic cylinder, a rodless cavity of the first plunger type hydraulic cylinder and a rodless cavity of the second plunger type hydraulic cylinder, pressure tests are carried out, pressure signals are transmitted to the valve group controller, the valve group controller analyzes and calculates the collected pressure signals to control the energy accumulator on-off valve group, and the energy accumulator on-off valve group can control the connection or the disconnection between the rodless cavities of the first plunger type hydraulic cylinder, the single-rod piston type hydraulic cylinder and the second plunger type hydraulic cylinder and the hydraulic energy accumulator in the hydraulic cylinder body.
Compared with the prior art, the invention has the advantages that:
(1) the hydraulic cylinders of two different types are combined together, the advantages of the hydraulic cylinders of two different types can be integrated, and the combination of the three hydraulic cylinders meets the requirement of large power. The combination of the three hydraulic cylinders ensures that the hydraulic cylinders work as a whole in the using process, the single-rod piston type hydraulic cylinder is used as a main cylinder and the two plunger type hydraulic cylinders are used as auxiliary cylinders to ensure that the hydraulic cylinders are easier to control in the working process by controlling the three hydraulic cylinders, and the safety can be still ensured when one or two hydraulic cylinders are suddenly damaged;
(2) according to the scheme, the three hydraulic cylinders are arranged horizontally, so that the hydraulic cylinder is easy to install and more stable to work, and the three hydraulic cylinders can be independently disassembled, so that the daily maintenance and repair are facilitated; the damping sheet is additionally arranged in the end connecting plate, so that the impact and vibration of the hydraulic cylinder during working are reduced; the three oil inlets enable oil to be more conveniently fed and discharged during working;
(3) this scheme has increased pressure sensor group, valve train controller, hydraulic accumulator and has opened and close valves, hydraulic accumulator, through the control to these parts, just so makes this pneumatic cylinder have certain energy-conserving effect.
The combined hydraulic cylinder is produced by combining the piston type hydraulic cylinder and the plunger type hydraulic cylinder, is suitable for most engineering machinery, meets the requirements of most working conditions, and has wide application prospect.
Drawings
FIG. 1 is a schematic view of the overall structure of a horizontally arranged combined energy-saving hydraulic cylinder according to the present invention;
FIG. 2 is a schematic front view of a horizontally arranged combined energy-saving hydraulic cylinder according to the present invention;
FIG. 3 is a schematic cross-sectional view of a horizontally arranged combined energy-saving hydraulic cylinder according to the present invention;
FIG. 4 is a schematic cross-sectional view of a connecting plate at the top end face of a horizontally arranged combined energy-saving hydraulic cylinder according to the present invention;
FIG. 5 is a schematic view of a horizontally disposed connecting plate for the top end face of the combined energy-saving hydraulic cylinder according to the present invention;
FIG. 6 is a schematic view of a connecting point between a connecting plate of the top end surface of a horizontally arranged combined energy-saving hydraulic cylinder and the hydraulic cylinder according to the present invention;
FIG. 7 is a schematic cross-sectional view of a connecting plate at the bottom end face of a horizontally arranged combined energy-saving hydraulic cylinder according to the present invention;
FIG. 8 is a schematic view of a horizontally disposed connecting plate for the bottom end face of the combined energy-saving hydraulic cylinder according to the present invention;
FIG. 9 is a schematic view of a connecting center point between a connecting plate and a hydraulic cylinder at the bottom end face of a horizontally arranged combined energy-saving hydraulic cylinder according to the present invention;
FIG. 10 is a schematic view of an energy-saving control system for a horizontally arranged combined hydraulic cylinder according to the present invention;
FIG. 11 is a schematic view of an energy-saving engineering machine according to the present invention.
The scores in the figures are as follows: fig. 1 is a schematic diagram of the overall structure of a horizontally arranged combined energy-saving hydraulic cylinder, which mainly comprises: a first plunger type hydraulic cylinder 110, a second plunger type hydraulic cylinder 130, a single-rod plunger type hydraulic cylinder 120, a top end face connecting plate 140 and a bottom end face connecting plate 150; fig. 2 is a schematic front view of a horizontally arranged combined energy-saving hydraulic cylinder, which mainly comprises: a first plunger type hydraulic cylinder 110, a second plunger type hydraulic cylinder 130, a single-rod plunger type hydraulic cylinder 120, a single-rod plunger type hydraulic cylinder oil inlet 121, a single-rod plunger type hydraulic cylinder oil outlet 122, a first plunger type hydraulic cylinder 110 oil inlet 111 and a second plunger type hydraulic cylinder 130 oil inlet 131; fig. 3, a cross-sectional schematic view of a horizontally arranged combined energy-saving hydraulic cylinder mainly comprises: a single-rod piston type hydraulic cylinder head 123, a single-rod piston type hydraulic cylinder sealing ring 124, a single-rod piston type hydraulic cylinder guide sleeve 125, a single-rod piston type hydraulic cylinder piston rod 126, a single-rod piston type hydraulic cylinder body 127, a single-rod piston type hydraulic cylinder piston 128, a single-rod piston type hydraulic cylinder sealing ring 129, a first pressure sensor 211, a second pressure sensor 212, a first plunger type hydraulic cylinder O-shaped sealing ring 112, a second plunger type hydraulic cylinder O-shaped sealing ring 132, a first plunger type hydraulic cylinder body 113, a second plunger type hydraulic cylinder body 133, a first plunger type hydraulic cylinder plunger 114, a second plunger type hydraulic cylinder plunger 134, a third pressure sensor 213 and a fourth pressure sensor 214; fig. 4 is a schematic cross-sectional view of a connecting plate at the top end face of a horizontally arranged combined energy-saving hydraulic cylinder, which mainly comprises: a bottom plate 141, a damping sheet 142, a cover plate 143, a bolt 144, and an ear ring 145; FIG. 5 is a top end face connecting plate overall view of a horizontally arranged combined energy-saving hydraulic cylinder; fig. 6 is a schematic view of the connection center point between the horizontal combined energy-saving hydraulic cylinder top end face connecting plate and the hydraulic cylinder, and mainly includes: the top of the first plunger type hydraulic cylinder is connected with a central point A, the top of the single-rod piston type hydraulic cylinder is connected with a central point B, and the top of the second plunger type hydraulic cylinder is connected with a central point C, A, B, C is connected on a horizontal line, and AB = BC; fig. 7 is a schematic cross-sectional view of a connecting plate at the bottom end face of a horizontally arranged combined energy-saving hydraulic cylinder, which mainly comprises: a bottom plate 151, a damping piece 152, a cover plate 153, a bolt 154, and an ear ring 155; FIG. 8 is a whole view of a connecting plate at the bottom end face of a horizontally arranged combined energy-saving hydraulic cylinder; fig. 9 is a schematic view of the connection center point between the horizontal combined energy-saving hydraulic cylinder bottom end face connecting plate and the hydraulic cylinder, and mainly includes: the energy-saving control system mainly comprises a first plunger type hydraulic cylinder bottom connecting central point D, a single-rod piston type hydraulic cylinder bottom connecting central point E and a second plunger type hydraulic cylinder bottom connecting central point F, D, E, F connecting lines are connected on a horizontal line, DE = EF, and a diagram of a horizontally arranged combined type hydraulic cylinder energy-saving control system shown in figure 10 mainly comprises: a pressure sensor group 210, a valve group controller 220, an accumulator on-off valve group 230 and a hydraulic accumulator 240; the pressure sensor group 210 includes: a first pressure sensor 211, a second pressure sensor 212, a third pressure sensor 213, a fourth pressure sensor 214; fig. 11 is a schematic view of an energy-saving engineering machine, which mainly includes: the working device 301, the upper vehicle part 302, the swing mechanism 303, the lower vehicle part 304, the top connecting shaft 305 and the bottom connecting shaft 306.
Detailed Description
In order to further illustrate the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
A combined energy saving hydraulic cylinder with reference to the attached drawings comprises: a single-rod piston type hydraulic cylinder 120, a first plunger type hydraulic cylinder 110, a second plunger type hydraulic cylinder 130, a top end face connecting plate 140 and a bottom end face connecting plate 150; the damping sheets 142 and 152 are additionally arranged between the top end face connecting plate bottom plate 141 and the bottom end face connecting plate bottom plate 151 and between the top connecting plate cover plate 143 and the bottom connecting plate cover plate 153; original earrings are removed from two ends of the single-rod piston type hydraulic cylinder 120, flat end faces are uniformly manufactured, the two end faces are respectively welded with a top end face connecting plate bottom plate 141 and a bottom end face connecting plate bottom plate 151, the original earrings are also removed from two ends of the first plunger type hydraulic cylinder 110 and the second plunger type hydraulic cylinder 130, the whole length is consistent with the length of the single-rod piston type hydraulic cylinder 120, the two end faces of the first plunger type hydraulic cylinder 110 and the second plunger type hydraulic cylinder 130 are welded with the bottom plates on the single-rod piston type hydraulic cylinder 120, and the three cylinders are placed horizontally; the three hydraulic cylinders are also provided with a pressure sensor group 210, a first pressure sensor 211, a second pressure sensor 212, a third pressure sensor 213 and a fourth pressure sensor 214, which are used for respectively acquiring the working pressures of a rodless cavity of the single-rod piston type hydraulic cylinder 120, a rod cavity of the single-rod piston type hydraulic cylinder 120, a rodless cavity of the first plunger type hydraulic cylinder 110 and a rodless cavity of the second plunger type hydraulic cylinder 130 and transmitting pressure signals to a valve group controller 220; the valve group controller 220 analyzes and calculates the collected pressure signal to control the accumulator on-off valve group 230; the accumulator on/off valve bank 230 may control on/off between the rodless chambers of the first ram cylinder 110, the single rod ram cylinder 120, and the second ram cylinder 130 in the cylinder body 100 and the hydraulic accumulator 240.
Referring to the drawings, the combined energy-saving hydraulic cylinder is applied to an energy-saving type engineering machine, the energy-saving type engineering machine comprises a hydraulic cylinder body 100, an energy-saving control system 200 and an engineering machine body 300, and the engineering machine body 300 comprises: the combined hydraulic cylinder body 100 is connected with the top connecting shaft 305 through an earring 145 of a top end face connecting plate 140 and is connected with the bottom connecting shaft 306 of the working device 301 through an earring 155 of a bottom end face connecting plate 150, and a valve group controller 220, an accumulator on-off valve group 230 and a hydraulic accumulator 240 of the energy-saving control system 200 are placed on the upper vehicle portion 302.
A movable arm lifting stage:
the single-rod piston type hydraulic cylinder (120), the first plunger type hydraulic cylinder (110) and the second plunger type hydraulic cylinder (130) simultaneously feed oil from an oil inlet (121) of the single-rod piston type hydraulic cylinder (120), an oil inlet (111) of the first plunger type hydraulic cylinder and an oil inlet (131) of the second plunger type hydraulic cylinder, the single-rod piston type hydraulic cylinder (120) discharges oil from an oil outlet (122), the first plunger type hydraulic cylinder (110) and the second plunger type hydraulic cylinder (130) do not have special oil outlets, and the oil inlets and the oil outlets are the same opening; in the lifting process of the movable arm, a first pressure sensor (211), a second pressure sensor (212), a third pressure sensor (213) and a fourth pressure sensor (214) respectively collect the working pressures of a rodless cavity of a single-rod piston type hydraulic cylinder (120), a rod cavity of the single-rod piston type hydraulic cylinder (120), a rodless cavity of a first plunger type hydraulic cylinder (110) and a rodless cavity of a second plunger type hydraulic cylinder (130), and transmit pressure signals to a valve group controller (220); the valve group controller (220) analyzes and calculates the collected pressure signal to control the accumulator on-off valve group (230); the accumulator on-off valve group (230) controls the rodless cavities of the first plunger type hydraulic cylinder (110), the single-rod piston type hydraulic cylinder (120) and the second plunger type hydraulic cylinder (130) in the hydraulic cylinder body (100) to be communicated with the hydraulic accumulator (240), and the hydraulic accumulator (240) provides auxiliary power. The single-rod piston type hydraulic cylinder (120) is used as a main cylinder, the first plunger type hydraulic cylinder (110) and the second plunger type hydraulic cylinder (130) are used as auxiliary cylinders, and the main cylinder and the auxiliary cylinders act in a synergistic mode to achieve lifting movement of the movable arm.
A movable arm descending stage:
the oil inlet and the oil outlet of the single-rod piston type hydraulic cylinder (120) are exchanged, oil is fed from the oil inlet (122), and oil is discharged from the oil outlet (121); the method comprises the steps that a first plunger type hydraulic cylinder (110) and a second plunger type hydraulic cylinder (130) discharge oil from original oil inlets (111) and (131), and in the descending process of a movable arm, a first pressure sensor (211), a second pressure sensor (212), a third pressure sensor (213) and a fourth pressure sensor (214) respectively collect working pressures of a rodless cavity of a single-rod piston type hydraulic cylinder (120), a rod cavity of the single-rod piston type hydraulic cylinder (120), a rodless cavity of the first plunger type hydraulic cylinder (110) and a rodless cavity of the second plunger type hydraulic cylinder (130) and transmit pressure signals to a valve group controller (220); the valve group controller (220) analyzes and calculates the collected pressure signal to control the accumulator on-off valve group (230); the accumulator on-off valve group (230) controls the rodless cavities of the first plunger type hydraulic cylinder (110), the single-rod piston type hydraulic cylinder (120) and the second plunger type hydraulic cylinder (130) in the hydraulic cylinder body (100) to be communicated with the pressure sensor group (210) and the hydraulic accumulator (240) to sense pressure change, the hydraulic accumulator on-off valve group (206) is controlled to be opened, the flowing oil enters the hydraulic accumulator (207), hydraulic energy recovery is achieved, and the hydraulic energy can be used as auxiliary power for the next movable arm lifting stroke.
The invention is not limited to the embodiments and examples shown herein, and any suitable variations or modifications of the invention can be made without departing from the scope of the invention.
Claims (4)
1. A horizontally-arranged combined energy-saving hydraulic cylinder is characterized by comprising: the combined hydraulic cylinder comprises a combined hydraulic cylinder body (100) and an energy-saving control system (200);
the combined hydraulic cylinder body (100) includes: the hydraulic cylinder comprises a first plunger type hydraulic cylinder (110), a single-rod piston type hydraulic cylinder (120), a second plunger type hydraulic cylinder (130), a top end face connecting plate (140) and a bottom end face connecting plate (150);
the first plunger type hydraulic cylinder (110) includes: an oil inlet (111) of the plunger type hydraulic cylinder, an O-shaped sealing ring (112) of the plunger type hydraulic cylinder, a cylinder body (113) of the plunger type hydraulic cylinder and a plunger (114) of the plunger type hydraulic cylinder;
the single-rod piston cylinder (120) comprises: the single-rod piston type hydraulic cylinder comprises a single-rod piston type hydraulic cylinder oil inlet (121), a single-rod piston type hydraulic cylinder oil outlet (122), a single-rod piston type hydraulic cylinder cover (123), a single-rod piston type hydraulic cylinder sealing ring (124), a single-rod piston type hydraulic cylinder guide sleeve (125), a single-rod piston type hydraulic cylinder piston rod (126), a single-rod piston type hydraulic cylinder body (127), a single-rod piston type hydraulic cylinder piston (128) and a single-rod piston type hydraulic cylinder sealing ring (129;
the second plunger type hydraulic cylinder (130) and the first plunger type hydraulic cylinder (110) have the same structure; the first plunger type hydraulic cylinder (110), the single-rod piston type hydraulic cylinder (120) and the second plunger type hydraulic cylinder (130) are horizontally arranged, the single-rod piston type hydraulic cylinder (120) is arranged in the middle, the first plunger type hydraulic cylinder (110) and the second plunger type hydraulic cylinder (130) are positioned on two sides, and working strokes are equal;
the top end face connection plate (140) includes: the damping device comprises a bottom plate (141), a damping sheet (142), a cover plate (143), a bolt (144) and an earring (145), wherein the damping sheet (142) reduces the impact of the load of a component connected with the earring (145) on a first plunger type hydraulic cylinder (110), a single-rod piston type hydraulic cylinder (120) and a second plunger type hydraulic cylinder (130);
the top end face connecting plate (140) and the bottom end face connecting plate (150) have the same structure and are arranged in a reverse symmetry manner;
the plunger (114) of the plunger type hydraulic cylinder of the first plunger type hydraulic cylinder (110), the piston rod (126) of the single-rod piston type hydraulic cylinder (120) and the plunger (134) of the plunger type hydraulic cylinder of the second plunger type hydraulic cylinder (130) are respectively connected with a bottom plate (141) of a top end face connecting plate (140), the connecting center points are A, B, C respectively, the connecting lines of A, B, C are on the same horizontal line, and AB = BC;
the plunger type hydraulic cylinder body (113) of the first plunger type hydraulic cylinder (110), the single-rod piston type hydraulic cylinder body (127) of the single-rod piston type hydraulic cylinder (120) and the plunger type hydraulic cylinder body (133) of the second plunger type hydraulic cylinder (130) are respectively connected with a bottom plate (151) of a bottom end face connecting plate (150), the connecting center points are D, E, F respectively, the connecting lines of D, E, F are on the same horizontal line, and DE = EF;
the energy saving control system (200) includes: the system comprises a pressure sensor group (210), a valve group controller (220), an accumulator on-off valve group (230) and a hydraulic accumulator (240);
the pressure sensor group (210) comprises: a first pressure sensor (211), a second pressure sensor (212), a third pressure sensor (213), a fourth pressure sensor (214);
the first pressure sensor (211), the second pressure sensor (212), the third pressure sensor (213) and the fourth pressure sensor (214) are used for respectively acquiring the working pressures of a rodless cavity of the single-rod piston type hydraulic cylinder (120), a rod cavity of the single-rod piston type hydraulic cylinder (120), a rodless cavity of the first plunger type hydraulic cylinder (110) and a rodless cavity of the second plunger type hydraulic cylinder (130), and transmitting pressure signals to the valve group controller (220);
the valve group controller (220) analyzes and calculates the collected pressure signal to control an energy accumulator on-off valve group (230);
the energy accumulator on-off valve group (230) can control the connection or the disconnection between the rodless cavities of the first plunger type hydraulic cylinder (110), the single-rod piston type hydraulic cylinder (120) and the second plunger type hydraulic cylinder (130) in the hydraulic cylinder body (100) and the hydraulic energy accumulator (240).
2. The horizontally-arranged combined energy-saving hydraulic cylinder as claimed in claim 1, wherein: the top end face connecting plate and the bottom end face connecting plate comprise bottom plates (141) and (151) and cover plates (143) and (153), vibration reduction sheets (142) and (152) are additionally arranged between the bottom plates and the cover plates, the bottom plates, the vibration reduction sheets and the cover plates are connected into a whole through four bolts (144) and (154), and earrings (145) and (155) are additionally arranged on the cover plates.
3. A horizontally arranged combined hydraulic cylinder according to claim 1, characterized in that: the cylinder inner diameters of a center-post piston type hydraulic cylinder body (113) of the first plunger type hydraulic cylinder (110) and a center-post piston type hydraulic cylinder body (133) of the second plunger type hydraulic cylinder (130) are smaller than the inner diameter of a single-rod piston type hydraulic cylinder body (127) of the single-rod piston type hydraulic cylinder (120), the single-rod piston type hydraulic cylinder (120) serves as a main cylinder, and the first plunger type hydraulic cylinder (110) and the second plunger type hydraulic cylinder (130) serve as auxiliary cylinders.
4. An energy-saving construction machine, characterized by comprising:
the hydraulic cylinder body (100) and the economizer control system (200) of claims 1-3;
a work machine body (300);
the work machine body (300) includes: the device comprises a working device (301), an upper vehicle part (302), a swing mechanism (303), a lower vehicle part (304), a top connecting shaft (305) and a bottom connecting shaft (306);
the combined hydraulic cylinder body (100) is connected with a top connecting shaft (305) through an ear ring (145) of a top end face connecting plate (140), and is connected with a bottom connecting shaft (306) of a working device (301) through an ear ring (155) of a bottom end face connecting plate (150);
the valve group controller (220), the accumulator on-off valve group (230) and the hydraulic accumulator (240) of the energy-saving control system (200) are arranged at the upper vehicle part (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110059197.6A CN112695833A (en) | 2021-01-18 | 2021-01-18 | Horizontal-arranged combined energy-saving hydraulic cylinder and energy-saving engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110059197.6A CN112695833A (en) | 2021-01-18 | 2021-01-18 | Horizontal-arranged combined energy-saving hydraulic cylinder and energy-saving engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112695833A true CN112695833A (en) | 2021-04-23 |
Family
ID=75515455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110059197.6A Pending CN112695833A (en) | 2021-01-18 | 2021-01-18 | Horizontal-arranged combined energy-saving hydraulic cylinder and energy-saving engineering machinery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355220A (en) * | 2022-09-22 | 2022-11-18 | 无锡君帆科技有限公司 | Hydraulic cylinder with piston rod capable of acting simultaneously |
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| CN203033455U (en) * | 2013-01-05 | 2013-07-03 | 深圳市格雷柏机械有限公司 | Clamping and loose-resistant device of hydraulic smokebox clamping and stacking machine |
| CN204284287U (en) * | 2014-12-10 | 2015-04-22 | 中国人民解放军总参谋部工程兵科研三所 | A kind of Effective Anti qi of chong channel ascending adversely liquid composite buffer |
| CN106515066A (en) * | 2016-02-15 | 2017-03-22 | 王继国 | Energy-saving hydraulic machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203033455U (en) * | 2013-01-05 | 2013-07-03 | 深圳市格雷柏机械有限公司 | Clamping and loose-resistant device of hydraulic smokebox clamping and stacking machine |
| CN204284287U (en) * | 2014-12-10 | 2015-04-22 | 中国人民解放军总参谋部工程兵科研三所 | A kind of Effective Anti qi of chong channel ascending adversely liquid composite buffer |
| CN106515066A (en) * | 2016-02-15 | 2017-03-22 | 王继国 | Energy-saving hydraulic machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115355220A (en) * | 2022-09-22 | 2022-11-18 | 无锡君帆科技有限公司 | Hydraulic cylinder with piston rod capable of acting simultaneously |
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Application publication date: 20210423 |
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