CN116119565B - Manual-automatic integrated universal hydraulic jack mechanism - Google Patents
Manual-automatic integrated universal hydraulic jack mechanism Download PDFInfo
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- CN116119565B CN116119565B CN202310404058.1A CN202310404058A CN116119565B CN 116119565 B CN116119565 B CN 116119565B CN 202310404058 A CN202310404058 A CN 202310404058A CN 116119565 B CN116119565 B CN 116119565B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a manual-automatic integrated universal hydraulic jack mechanism, which comprises a jacking structure, a manual oil pumping structure and an electric oil pumping structure; the jacking structure comprises a base, a hydraulic cylinder, a first connecting rod and a second connecting rod, wherein a plurality of first connecting seats are circumferentially arranged on the base at intervals, a plurality of second connecting seats are circumferentially arranged on the top of the hydraulic cylinder at intervals, and a plurality of third connecting seats are circumferentially arranged on the bottom of the hydraulic cylinder; the manual oil pumping structure comprises a first oil inlet pipeline, a first oil return pipeline, a first oil tank, a manual pump and a two-position three-way valve, wherein the first oil tank is arranged on the base, one end of the first oil inlet pipeline is communicated with the first oil inlet tank, the other end of the first oil inlet pipeline is communicated with the hydraulic cylinder, and the manual pump and the two-position three-way valve are sequentially arranged on the first oil inlet pipeline; one end of the first oil return pipeline is communicated with the first oil tank, and the other end of the first oil return pipeline is communicated with the hydraulic pump. Through the structure, different hydraulic cylinders can be selected and applied, and the safety of oil pumping can be effectively ensured.
Description
Technical Field
The invention belongs to the technical field of jacks, and particularly relates to a manual-automatic integrated universal hydraulic jack mechanism.
Background
The hydraulic jack for the aircraft is mainly used for jacking and supporting the aircraft body structure and carrying out daily maintenance, repair and inspection of the aircraft and treatment operation of special conditions. The jack-up part is a jack support on the airplane body and the wing. At present, most of widely used hydraulic jacks are single-purpose manual jacks, namely, one type of manual hydraulic jack lifts one type of airplane, and when various airplane types need to be lifted, various jacks occupy various space resources.
Moreover, the manual jack has low working efficiency, and when an emergency occurs, the working efficiency of a user can be seriously affected. And because the jack types are too many, the situation that a user selects an incorrect jack easily occurs, so that dangerous accidents such as airplane roll and the like in working are caused.
The patent with the application number of CN202023343242.0 discloses a retractable jack for an airplane, which adopts the scheme that the retractable jack relates to the technical field of supporting devices and comprises an actuating cylinder arranged in the vertical direction, wherein the outer wall of the actuating cylinder is connected with a sliding sleeve ring in a sliding manner, the sliding sleeve ring is connected with the actuating cylinder in a sliding manner along the vertical direction, the actuating cylinder is connected with a first self-locking nut at a position close to the sliding sleeve ring, and the outer wall of the sliding sleeve ring is hinged with a supporting frame; the bottom of the actuating cylinder is connected with a driving lantern ring, the driving lantern ring is connected with the actuating cylinder in a sliding mode along the vertical direction, the actuating cylinder is connected with a second self-locking nut at a position close to the driving lantern ring, the supporting frame is hinged with a driving frame, and the driving frame is hinged with the bottom of the actuating cylinder. "the jack of this structure has a problem of complicated operation.
Disclosure of Invention
The invention aims to provide a manual-automatic integrated universal hydraulic jack mechanism, which aims to solve the following technical problems in the background art:
because the types of the jacks are too many, the situation that a user selects the wrong jack is easy to happen, and dangerous accidents such as airplane roll and the like in working are caused.
In order to solve the technical problems, the invention adopts the following technical scheme:
the manual-automatic integrated universal hydraulic jack mechanism comprises a jacking structure, a manual oil pumping structure and an electric oil pumping structure, wherein the manual oil pumping structure and the electric oil pumping structure are connected with the jacking structure;
the jacking structure comprises a base, a hydraulic cylinder, a first connecting rod and a second connecting rod, wherein a plurality of first connecting seats are circumferentially arranged on the base at intervals, a plurality of second connecting seats are circumferentially arranged on the top of the hydraulic cylinder at intervals, and a plurality of third connecting seats are circumferentially arranged on the bottom of the hydraulic cylinder; one end of the first connecting rod is hinged with the first connecting seat, and the other end of the first connecting rod is hinged with the second connecting seat; one end of the second connecting rod is hinged with the first connecting seat, and the other end of the second connecting rod is hinged with the third connecting seat;
the manual oil pumping structure comprises a first oil inlet pipeline, a first oil return pipeline, a first oil tank, a manual pump and a two-position three-way valve, wherein the first oil tank is arranged on the base, one end of the first oil inlet pipeline is communicated with the first oil inlet tank, the other end of the first oil inlet pipeline is communicated with the hydraulic cylinder, and the manual pump and the two-position three-way valve are sequentially arranged on the first oil inlet pipeline; one end of the first oil return pipeline is communicated with the first oil tank, and the other end of the first oil return pipeline is communicated with the hydraulic pump;
the first oil inlet pipeline comprises S1, S4, S5 and S6; the first oil return pipeline comprises an S7, an A port and a B port of the two-position three-way valve are communicated with the S3 through an S5, a stop valve is arranged between the S5 and the S3, and a control oil way K1 is arranged outside the two-position three-way valve and is communicated with the S5;
the electric oil pumping structure comprises a second oil inlet pipeline, a second oil return pipeline, a safety pipeline, an electric pump, a two-position four-way valve, a second oil tank, a hydraulic gauge, an electromagnetic valve and a throttle valve; one end of the second oil inlet pipeline is communicated with the second oil tank, the other end of the second oil inlet pipeline is communicated with the hydraulic cylinder, and the electric pump is arranged on the second oil inlet pipeline; one end of the second oil return pipeline is communicated with the second oil tank, the other end of the second oil return pipeline is communicated with the hydraulic pump, and the two-position four-way valve is connected between the second oil inlet pipeline and the second oil return pipeline in parallel; one end of the safety pipeline is communicated with the second oil tank, the other end of the safety pipeline is connected with the hydraulic pump, and the electromagnetic valve and the throttle valve are arranged on the safety pipeline; the hydraulic gauge is arranged on the second oil inlet pipeline, and the electromagnetic valve and the throttle valve are electrically connected with the hydraulic gauge.
The second oil inlet pipeline comprises S13, S11 and S9, and the second oil return pipeline comprises S10 and S12; the two-position four-way valve core moves to the left position, S11 is communicated with P3, P3 is communicated with A3, A3 is communicated with S9, S10 is communicated with B3, S12 is communicated with T1, and B3 is communicated with T1; the valve core of the two-position three-way valve moves to the right, S11 is communicated with P4, P4 is communicated with A4, S10 is communicated with A4, S9 is communicated with B4, B4 is communicated with T2, and S12 is communicated with T2;
the hydraulic gauge is connected to the S9 and is used for recording the oil inlet pressure of the second oil inlet pipeline during jacking; the safety line includes S8, and the solenoid valve and the throttle valve are provided on S8.
Further, the hydraulic cylinder adopts a hydraulic cylinder with a multi-stage piston structure.
Further, a plurality of supporting bodies are connected to the outside screw thread of the first oil tank, and a screw thread interface is arranged at the top of a piston rod of the hydraulic cylinder and matched with the supporting bodies.
Further, a first overflow valve is connected in parallel to the first oil inlet pipeline outside the manual pump.
Further, the second oil tank is connected in series with the first oil tank.
Further, a filter is arranged on the second oil return pipeline.
Further, a second overflow valve is connected in parallel outside the electric pump.
Further, a liquid level meter is arranged on the oil tank, and an oil drain valve is arranged at the bottom of the oil tank.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the hydraulic cylinder is connected with the base through the second connecting rod, then is connected with the base through the second connecting rod, and the position of the hydraulic cylinder is fixed through the first connecting rod and the second connecting rod. A triangular structure is formed among the first connecting rod, the second connecting rod and the hydraulic cylinder, so that the stability of the hydraulic cylinder can be effectively ensured. The hydraulic cylinder is prevented from being inclined when the aircraft is jacked, and stability and reliability can be improved. Meanwhile, through the design, hydraulic cylinders with different sizes can be installed, so that the problem that the hydraulic cylinders with wrong selection cannot be installed for use is solved.
The manual oil pumping structure and the electric oil pumping structure provided by the invention can facilitate the staff to select a proper oil pumping mode according to the actual use requirement. The oil way structure of the manual oil pumping structure can effectively ensure the safety of manual oil pumping.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a schematic view of the oil path structure of the present invention.
The marks in the figure: the hydraulic oil pump comprises a 1-electric oil pumping structure, a 2-first connecting rod, a 3-first connecting seat, a 4-second connecting rod, a 5-manual oil pumping structure, a 6-supporting body, a 7-hydraulic cylinder, an 8-second connecting seat, a 9-base, a 10-third connecting seat, a 11-first oil tank, a 12-second oil tank, a 13-oil drain valve, a 14-filter, a 15-electric pump, a 16-two-position four-way valve, a 17-hydraulic gauge, a 18-stop valve, a 19-two-position three-way valve, a 20-manual pump, a 21-electromagnetic valve and a 22-throttle valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The manual-automatic integrated universal hydraulic jack mechanism comprises a jacking structure, a manual oil pumping structure 5 and an electric oil pumping structure 1, wherein the manual oil pumping structure 5 and the electric oil pumping structure 1 are connected with the jacking structure;
the jacking structure comprises a base 9, a hydraulic cylinder 7, a first connecting rod 2 and a second connecting rod 4, wherein a plurality of first connecting seats 3 are circumferentially arranged on the base 9 at intervals, a plurality of second connecting seats 8 are circumferentially arranged on the top of the hydraulic cylinder 7 at intervals, and a plurality of third connecting seats 10 are circumferentially arranged on the bottom of the hydraulic cylinder 7; one end of the first connecting rod 2 is hinged with the first connecting seat 3, and the other end is hinged with the second connecting seat 8; one end of the second connecting rod 4 is hinged with the first connecting seat 3, and the other end is hinged with the third connecting seat 10;
the manual oil pumping structure 5 comprises a first oil inlet pipeline, a first oil return pipeline, a first oil tank 11, a manual pump 20 and a two-position three-way valve 19, wherein the first oil tank 11 is arranged on the base 9, one end of the first oil inlet pipeline is communicated with the first oil inlet tank, the other end of the first oil inlet pipeline is communicated with the hydraulic cylinder 7, and the manual pump 20 and the two-position three-way valve 19 are sequentially arranged on the first oil inlet pipeline; one end of the first oil return pipeline is communicated with the first oil tank 11, and the other end of the first oil return pipeline is communicated with the hydraulic pump;
the electric pump oil structure 1 comprises a second oil inlet pipeline, a second oil return pipeline, a safety pipeline, an electric pump 15, a two-position four-way valve 16, a second oil tank 12, a hydraulic gauge 17, an electromagnetic valve 21 and a throttle valve 22; one end of the second oil inlet pipeline is communicated with the second oil tank 12, the other end of the second oil inlet pipeline is communicated with the hydraulic cylinder 7, and the electric pump 15 is arranged on the second oil inlet pipeline; one end of the second oil return pipeline is communicated with the second oil tank 12, the other end of the second oil return pipeline is communicated with the hydraulic pump, and the two-position four-way valve 16 is connected between the second oil inlet pipeline and the second oil return pipeline in parallel; one end of the safety pipeline is communicated with the second oil tank 12, the other end of the safety pipeline is connected with the hydraulic pump, and the electromagnetic valve 21 and the throttle valve 22 are arranged on the safety pipeline; the hydraulic pressure gauge 17 is provided on the second oil intake line, and the electromagnetic valve 21 and the throttle valve 22 are electrically connected to the hydraulic pressure gauge 17.
Specifically, as shown in fig. 1 to 2, when the aircraft needs to be lifted in actual use, a proper hydraulic cylinder 7 is selected, the hydraulic cylinder 7 is connected with a base 9 through a second connecting rod 4, then the hydraulic cylinder 7 is connected with the base 9 through the second connecting rod 4, and the position of the hydraulic cylinder 7 is fixed through the first connecting rod 2 and the second connecting rod 4. A triangle structure is formed among the first connecting rod 2, the second connecting rod 4 and the hydraulic cylinder 7, so that the stability of the hydraulic cylinder 7 can be effectively ensured. The hydraulic cylinder 7 is prevented from being askew when the aircraft is jacked, and stability and reliability can be improved. Meanwhile, through the design, the hydraulic cylinders 7 with different sizes can be installed, so that the problem that the hydraulic cylinders 7 with wrong selection cannot be installed for use is prevented.
When jacking, the device is divided into two cases, namely manual jacking and electric jacking. The proper jacking mode is selected according to the conditions of the use environment. If the electric oil pumping structure 1 is not suitable for being installed on the ground, the electric oil pumping structure can be lifted manually. When the manual jacking is used, the manual pump is pressed, the hydraulic pump pumps hydraulic oil in the first oil tank 11 into the first oil inlet pipeline, and hydraulic oil enters the hydraulic cylinder 7 through the first oil inlet pipeline.
Specifically, as shown in fig. 3, the first oil inlet pipeline includes S1, S4, S5, S6; the first oil return pipeline comprises an S7, and an A port and a B port of the two-position three-way valve 19 are communicated with the S3 through an S5, as shown in fig. 3, wherein the two-position three-way valve 19 is provided with two inlets P1 and P2 and four interfaces A1, A2, B1 and B2. A stop valve 18 is arranged between the S5 and the S3, and a control oil way K1 is arranged outside the two-position three-way valve 19, and the K1 is communicated with the S5; when the two-position three-way valve 19 is positioned at the lower position, the stop valve 18 is closed, S4 is communicated with P1, and P1 is communicated with A1; as shown in fig. 3, the hand pump pumps hydraulic oil into S4 through S1, and then the hydraulic oil sequentially passes through P1 and A1 to enter S5; and then the hydraulic oil enters into the S6 and finally enters into the rodless cavity of the hydraulic cylinder 7, the hydraulic oil in the rod cavity of the hydraulic cylinder 7 flows back into the first oil tank 11 through the S7, and the extension of the piston rod is realized. When the pressure is too high, the hydraulic oil pushes the two-position three-way valve 19 through the K1, so that the two-position three-way valve 19 moves to an upper position, at the moment, the S4 and the P2 are connected, the P2 and the A2 are connected, the hydraulic oil from the manual pump 20 enters the S3 through the two-position three-way valve 19 and returns to the first oil tank 11 from the S2, and the danger caused by continuous pressurization is prevented. Through the design, the safety of manual jacking can be effectively ensured. When the piston rod needs to be lowered, the stop valve 18 is opened, and the hydraulic oil in the rodless cavity of the hydraulic cylinder 7 sequentially passes through S6, S5 and S3, finally enters S2 and returns to the first oil tank 11, so that the piston rod is lowered.
When the situation is suitable for installing a pump station, an electric jacking mode is adopted, and when jacking is carried out, the two-position four-way valve 16 is particularly shown in fig. 3, wherein the two-position four-way valve 16 is provided with four inlets P3, P4, B3 and B4 and four interfaces A3, A4, T1 and T2. The second oil inlet pipeline comprises S13, S11 and S9, and the second oil return pipeline comprises S10 and S12; the valve core of the two-position four-way valve 16 moves to the left position, S11 is communicated with P3, P3 is communicated with A3, and A3 is communicated with S9; s10 is communicated with B3, S12 is communicated with T1, and B3 is communicated with T1; under the pressure of the electric pump 15, the hydraulic oil in the second oil tank 12 enters the electric pump 15 through the S13, then enters the S11, enters the P3 from the S11, then enters the S9 from the A3 port, and finally enters the rodless cavity of the hydraulic pump through the S9; the hydraulic oil in the rod cavity of the hydraulic cylinder 7 enters S10, passes through B3 and T1, enters S12, and finally returns to the second oil tank 12. In this way, the extension of the piston rod is achieved. When the hydraulic cylinder 7 is required to descend, the valve core of the two-position three-way valve 19 is controlled to move to the right, at the moment, the S11 is communicated with the P4, the P4 is communicated with the A4, and the S10 is communicated with the A4; s9 is connected with B4, B4 is connected with T2, and S12 is connected with T2. At this time, the second oil inlet lines are S13, S11, and S10, and the second oil return lines are S9 and S12. The hydraulic pump is pressurized, hydraulic oil in the second oil tank 12 enters the electric pump 15 through the S13, then enters the S11, sequentially passes through the P4 and the A4 and then enters the S10, and finally enters the rod cavity of the hydraulic cylinder 7; the hydraulic oil in the cylinder chamber of the hydraulic cylinder 7 enters into the S9, sequentially passes through the B4 and the T2, then enters into the S12, and finally returns to the second oil tank 12. The piston rod of the hydraulic cylinder 7 can extend or descend more stably by adopting an automatic lifting mode, and the lifting of objects with large weight is facilitated.
The hydraulic gauge 17 is connected to the S9 and is used for recording the oil inlet pressure of the second oil inlet pipeline during lifting; the safety line includes S8, and solenoid valve 21 and throttle 22 are set up on S8, and when the hydraulic pressure gauge 17 monitors that the hydraulic oil pressure in the second oil feed line is too big, the hydraulic pressure gauge 17 gives the central processing unit with the signal transmission, and central processing unit control solenoid valve 21 opens to according to the aperture of the specific pressure regulation throttle 22 of second oil feed line, the greater the pressure, the more the aperture. At this time, the hydraulic oil in the rodless chamber of the hydraulic cylinder 7 flows back into the second oil tank 12 through S8.
In a preferred embodiment, as shown in fig. 1 to 2, the hydraulic cylinder 7 is a multi-stage piston structure hydraulic cylinder. The hydraulic cylinder of the multistage piston structure has the advantages of stability and safety in jacking, and meanwhile, the hydraulic cylinder of the multistage piston structure is high in jacking capacity and can jack heavier objects.
In a preferred embodiment, as shown in fig. 1-2, the first oil tank 11 is externally screwed with a plurality of support bodies 6, and the top of the piston rod of the hydraulic cylinder 7 is provided with a screwed joint, and the screwed joint is matched with the support bodies 6. Different supports 6 are intended to cooperate with different aircraft bearings. The applicability of the invention can be effectively improved.
In a preferred embodiment, as shown in FIGS. 1-2, a first relief valve is connected in parallel with the first oil inlet line outside the manual pump 20. Specifically, the first oil inlet pipeline is connected with a pilot overflow valve, and the pilot overflow valve can control pressure oil flow, so that the system keeps certain pressure, and the safety of manual jacking is ensured.
In a preferred embodiment, as shown in fig. 1-2, the second tank 12 is connected in series with the first tank 11. When using electric lifting, the first tank 11 is connected in series with the second tank 12 by means of a pipe, in such a way that the replacement of the hydraulic oil in the first tank 11 can be achieved.
In a preferred embodiment, as shown in fig. 1-2, a filter 14 is provided on the second return line. The filter 14 is used for filtering impurities generated by friction in the hydraulic cylinder 7, can effectively prevent the impurities from entering the oil pipeline, and can clean and filter the hydraulic oil in the oil tank.
In a preferred embodiment, as shown in fig. 1-2, a second relief valve is connected in parallel with the outside of the electric pump 15. The second overflow valve is used for controlling the pressure oil flow, so that the system keeps certain pressure, and the safety of electric jacking is ensured.
In a preferred embodiment, as shown in fig. 1-2, a level gauge is provided on the second tank 12 and a drain valve 13 is provided at the bottom of the tank. The level gauge is used for observing the oil quantity in the second oil tank 12, and as the complete sealing cannot be ensured in the whole system, the leakage of hydraulic oil is ensured in the jacking process, so that the level gauge is required to be arranged for observing the oil quantity in the second oil tank 12 to ensure the sufficient supply of the hydraulic oil, and the hydraulic oil is convenient to add. The hydraulic oil in the second oil tank 12 may be discharged from S14 by opening the drain valve 13 when the hydraulic oil is turbid after a period of use, closing the drain valve 13 after the drain is completed, and re-adding the hydraulic oil to the second oil tank 12. When the second oil tank 12 is connected with the first oil tank 11, the second oil tank 12 can supplement and replace the first oil tank 11, thereby realizing the filling and the oil change of the first oil tank 11.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A manual-automatic integrated universal hydraulic jack mechanism is characterized in that: the oil pumping device comprises a jacking structure, a manual oil pumping structure (5) and an electric oil pumping structure (1), wherein the manual oil pumping structure (5) and the electric oil pumping structure (1) are connected with the jacking structure;
the jacking structure comprises a base (9), a hydraulic cylinder (7), a first connecting rod (2) and a second connecting rod (4), wherein a plurality of first connecting seats (3) are circumferentially arranged on the base (9) at intervals, a plurality of second connecting seats (8) are circumferentially arranged on the top of the hydraulic cylinder (7) at intervals, and a plurality of third connecting seats 10 are circumferentially arranged on the bottom of the hydraulic cylinder (7); one end of the first connecting rod (2) is hinged with the first connecting seat (3), and the other end is hinged with the second connecting seat (8); one end of the second connecting rod (4) is hinged with the first connecting seat (3), and the other end is hinged with the third connecting seat 10;
the manual oil pumping structure (5) comprises a first oil inlet pipeline, a first oil return pipeline, a first oil tank (11), a manual pump (20) and a two-position three-way valve (19), wherein the first oil tank (11) is arranged on the base (9), one end of the first oil inlet pipeline is communicated with the first oil inlet tank, the other end of the first oil inlet pipeline is communicated with the hydraulic cylinder (7), and the manual pump (20) and the two-position three-way valve (19) are sequentially arranged on the first oil inlet pipeline; one end of the first oil return pipeline is communicated with the first oil tank (11), and the other end of the first oil return pipeline is communicated with the hydraulic pump;
the first oil inlet pipeline comprises S1, S4, S5 and S6; the first oil return pipeline comprises an S7, an A port and a B port of a two-position three-way valve (19) are communicated with the S3 through an S5, a stop valve (18) is arranged between the S5 and the S3, and a control oil way K1 is arranged outside the two-position three-way valve (19) and is communicated with the S5;
when the two-position three-way valve (19) is positioned at the lower position, the stop valve (18) is closed, S4 is communicated with P1, and P1 is communicated with A1; the hand pump pumps hydraulic oil into the S4 through the S1, and then the hydraulic oil sequentially passes through the P1 and the A1 to enter the S5; then enter S6, enter the rodless cavity of the hydraulic cylinder (7) finally, the hydraulic oil in the rod cavity of the hydraulic cylinder (7) flows back into the first oil tank (11) through S7, realize the extension of the piston rod; when the pressure is overlarge, hydraulic oil pushes the two-position three-way valve (19) through the K1, so that the two-position three-way valve (19) moves to an upper position, at the moment, S4 is communicated with P2, P2 is communicated with A2, and the hydraulic oil from the manual pump (20) enters S3 through the two-position three-way valve (19) and returns to the first oil tank (11) from S2; opening a stop valve (18), and enabling hydraulic oil in a rodless cavity of a hydraulic cylinder (7) to sequentially pass through S6, S5 and S3, finally enter S2 and return to a first oil tank (11) so that a piston rod descends;
the electric oil pumping structure (1) comprises a second oil inlet pipeline, a second oil return pipeline, a safety pipeline, an electric pump (15), a two-position four-way valve (16), a second oil tank (12), a hydraulic gauge (17), an electromagnetic valve (21) and a throttle valve (22); one end of the second oil inlet pipeline is communicated with the second oil tank (12), the other end of the second oil inlet pipeline is communicated with the hydraulic cylinder (7), and the electric pump (15) is arranged on the second oil inlet pipeline; one end of the second oil return pipeline is communicated with the second oil tank (12), the other end of the second oil return pipeline is communicated with the hydraulic pump, and the two-position four-way valve (16) is connected between the second oil inlet pipeline and the second oil return pipeline in parallel; one end of the safety pipeline is communicated with the second oil tank (12), the other end of the safety pipeline is connected with the hydraulic pump, and the electromagnetic valve (21) and the throttle valve (22) are arranged on the safety pipeline; the hydraulic gauge (17) is arranged on the second oil inlet pipeline, and the electromagnetic valve (21) and the throttle valve (22) are electrically connected with the hydraulic gauge (17);
the second oil inlet pipeline comprises S13, S11 and S9, and the second oil return pipeline comprises S10 and S12; the valve core of the two-position four-way valve (16) moves to the left position, S11 is communicated with P3, P3 is communicated with A3, A3 is communicated with S9, S10 is communicated with B3, S12 is communicated with T1, and B3 is communicated with T1; the valve core of the two-position three-way valve (19) moves to the right, S11 is communicated with P4, P4 is communicated with A4, S10 is communicated with A4, S9 is communicated with B4, B4 is communicated with T2, and S12 is communicated with T2;
the hydraulic gauge (17) is connected to the S9 and is used for recording the oil inlet pressure of the second oil inlet pipeline during jacking; the safety pipeline comprises S8, and a solenoid valve (21) and a throttle valve (22) are arranged on the S8.
2. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: the hydraulic cylinder (7) adopts a multi-stage piston structure hydraulic cylinder.
3. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: the first oil tank (11) is externally connected with a plurality of supporting bodies (6) in a threaded mode, a threaded interface is arranged at the top of a piston rod of the hydraulic cylinder (7), and the threaded interface is matched with the supporting bodies (6).
4. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: the first oil inlet pipeline is positioned outside the manual pump (20) and is connected with a first overflow valve in parallel.
5. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: the second oil tank (12) is connected in parallel with the first oil tank (11).
6. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: a filter (14) is arranged on the second oil return pipeline.
7. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: the second overflow valve is connected in parallel outside the electric pump (15).
8. A manual-automatic integrated universal hydraulic jack mechanism according to claim 1, wherein: the oil tank is provided with a liquid level meter, and the bottom of the oil tank is provided with an oil drain valve (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310404058.1A CN116119565B (en) | 2023-04-17 | 2023-04-17 | Manual-automatic integrated universal hydraulic jack mechanism |
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| CN202310404058.1A CN116119565B (en) | 2023-04-17 | 2023-04-17 | Manual-automatic integrated universal hydraulic jack mechanism |
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| CN116119565B true CN116119565B (en) | 2023-07-25 |
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