CN116696884A - Multi-way hydraulic cylinder system - Google Patents

Multi-way hydraulic cylinder system Download PDF

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Publication number
CN116696884A
CN116696884A CN202210187848.4A CN202210187848A CN116696884A CN 116696884 A CN116696884 A CN 116696884A CN 202210187848 A CN202210187848 A CN 202210187848A CN 116696884 A CN116696884 A CN 116696884A
Authority
CN
China
Prior art keywords
hydraulic cylinder
oil pipe
auxiliary
main
oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210187848.4A
Other languages
Chinese (zh)
Inventor
陈云周
吴俊逸
邓昊
易鑫
李辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUNAN TELI HYDRAULIC CO Ltd
Zoomlion Heavy Industry Science and Technology Co Ltd
Original Assignee
HUNAN TELI HYDRAULIC CO Ltd
Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUNAN TELI HYDRAULIC CO Ltd, Zoomlion Heavy Industry Science and Technology Co Ltd filed Critical HUNAN TELI HYDRAULIC CO Ltd
Priority to CN202210187848.4A priority Critical patent/CN116696884A/en
Publication of CN116696884A publication Critical patent/CN116696884A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
    • 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
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1438—Cylinder to end cap assemblies
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/082—Non-disconnectible joints, e.g. soldered, adhesive or caulked joints
    • F16L41/084—Soldered joints

Abstract

The application provides a multi-channel hydraulic cylinder system which comprises a main hydraulic cylinder, an auxiliary hydraulic cylinder, an oil pipe assembly and a centralized control valve. The oil pipe assembly comprises a main oil pipe which is arranged on the peripheral wall of the main hydraulic cylinder and used for controlling the main hydraulic cylinder and two auxiliary oil pipes which are used for controlling the auxiliary hydraulic cylinders; the two ends of the main oil pipe are respectively communicated with a rod cavity and a rodless cavity of the main hydraulic cylinder, one end of each of the two auxiliary oil pipes is respectively communicated with the rodless cavity of the main hydraulic cylinder, and the other end of each of the two auxiliary oil pipes is respectively communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder. The centralized control valve is arranged on the main hydraulic cylinder and is used for controlling the on-off of the main oil pipe and the auxiliary oil pipe so as to enable the main hydraulic cylinder or the auxiliary hydraulic cylinder to act. The main hydraulic cylinder and the auxiliary hydraulic cylinder share the same pipeline system, are controlled by the centralized control valve, can complete telescopic actions independently and noninterferently, and are simple in structure and convenient to operate.

Description

Multi-way hydraulic cylinder system
Technical Field
The application belongs to the technical field of hydraulic systems, and particularly relates to a multi-channel hydraulic cylinder system.
Background
The hydraulic cylinder is used as an actuating mechanism and is mainly used for driving a load to do reciprocating linear motion. However, in order to meet the working requirements of different devices, the hydraulic cylinders are often required to provide various hydraulic passages so as to meet the requirements of various working conditions.
In the process of connecting the traditional multi-channel hydraulic cylinder system with the pipeline, the pipeline for connecting the hydraulic cylinders is complex due to the participation of two or more hydraulic cylinders, so that the pipeline which needs to be welded is narrow in various spaces when the pipeline is welded, and the welding of the hydraulic cylinder system is very inconvenient; and because of the intercommunication of fluid connecting lines, the motion between two pneumatic cylinders can influence and interfere each other, is difficult to accomplish the mutual independence motion between two pneumatic cylinders, influences normal use. In order to simplify the pipeline of the multi-channel hydraulic cylinder system, reduce the welding workload and facilitate the processing and manufacturing, the application provides the multi-channel hydraulic cylinder system.
Disclosure of Invention
The application mainly aims to provide a multi-channel hydraulic cylinder system, and aims to solve the technical problems that hydraulic cylinders in the same pipeline system in the prior art cannot move independently and pipelines are inconvenient to weld.
In order to achieve the above object, the present application provides a multi-path hydraulic cylinder system, wherein the multi-path hydraulic cylinder system includes a main hydraulic cylinder, a sub hydraulic cylinder, an oil pipe assembly, and a centralized control valve. The oil pipe assembly comprises a main oil pipe which is arranged on the peripheral wall of the main hydraulic cylinder and used for controlling the expansion and contraction of the main hydraulic cylinder and two auxiliary oil pipes which are used for controlling the expansion and contraction of the auxiliary hydraulic cylinder; the two ends of the main oil pipe are respectively communicated with a rod cavity and a rodless cavity of the main hydraulic cylinder, one end of each of the two auxiliary oil pipes is respectively communicated with the rodless cavity of the main hydraulic cylinder, and the other end of each of the two auxiliary oil pipes is respectively communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder. The centralized control valve is arranged on the main hydraulic cylinder and is used for controlling the on-off of the main oil pipe and the auxiliary oil pipe so as to enable the main hydraulic cylinder or the auxiliary hydraulic cylinder to act.
In the embodiment of the application, the oil pipe assembly further comprises a valve seat and an adapter seat which are welded on the peripheral wall of the main hydraulic cylinder, wherein the valve seat and the adapter seat are respectively arranged corresponding to the rodless cavity and the rod-containing cavity of the main hydraulic cylinder, two ends of the main oil pipe are respectively welded on the valve seat and the peripheral wall of the rod-containing cavity of the main hydraulic cylinder, two ends of the auxiliary oil pipe are respectively welded on the valve seat and the adapter seat, and the first end of the auxiliary oil pipe is welded on the valve seat, and the second end of the auxiliary oil pipe is communicated with the auxiliary hydraulic cylinder through the adapter seat.
In the embodiment of the application, a first oil port is formed in the side wall of the rodless cavity of the main hydraulic cylinder, a connecting piece is welded in the valve seat, an inner cavity communicated with the first oil port is formed in the connecting piece, and the first ends of the auxiliary oil pipe and the main oil pipe are communicated with the inner cavity through the side wall of the valve seat.
In the embodiment of the application, the connecting piece comprises two large circular rings and a small circular ring which are connected along the axial direction, the diameter of the large circular ring is larger than that of the circular ring, and the bottom of the small circular ring is welded with the peripheral wall of the first oil port.
In the embodiment of the application, the side wall of the rod cavity of the main hydraulic cylinder is provided with the second oil port, the middle of the adapter is provided with the notch, the top of the notch self-adapting seat extends to the side wall of the main hydraulic cylinder, and the second end of the main oil pipe passes through the notch and is welded with the peripheral wall at the top end of the second oil port.
In the embodiment of the application, the adapter is provided with the circulation cavity, and the second end of the auxiliary oil pipe is communicated with the circulation cavity and welded with the peripheral wall of the end part of the circulation cavity.
In the embodiment of the application, the auxiliary hydraulic cylinder is provided with the connecting seat, two connecting oil pipes extend out of the connecting seat, and the two connecting oil pipes are respectively communicated with the circulation cavity so as to communicate the auxiliary oil pipe and the connecting oil pipe.
In the embodiment of the application, the connecting seat is respectively provided with a channel communicated with the rodless cavity and the rod-containing cavity of the auxiliary hydraulic cylinder, and the two connecting oil pipes are respectively communicated with the rodless cavity and the rod-containing cavity of the auxiliary hydraulic cylinder through the two channels.
In an embodiment of the application, the multi-path hydraulic cylinder system further comprises a detection assembly for detecting the oil pressure of the hydraulic oil in the main oil pipe and the auxiliary oil pipe.
In the embodiment of the application, the multi-channel hydraulic cylinder system further comprises a pipe clamp, one end of the pipe clamp is welded on the cylinder barrel of the main hydraulic cylinder, and the other end of the pipe clamp is provided with a clamping part for clamping the main oil pipe and the auxiliary oil pipe.
Through the technical scheme, the multi-channel hydraulic cylinder system provided by the embodiment of the application has the following beneficial effects:
according to the technical scheme, the auxiliary oil pipe is used for connecting the main hydraulic cylinder and the auxiliary hydraulic cylinder, the main oil pipe is used for connecting a rod cavity and a rodless cavity of the main hydraulic cylinder, the opening and closing of the main oil pipe and the auxiliary oil pipe are controlled through the connection of the centralized control valve, and the operation of the main hydraulic cylinder and the auxiliary hydraulic cylinder is controlled. When the master hydraulic cylinder is required to work, the centralized control valve controls the conduction of the master oil pipe, the two auxiliary oil pipes are closed, and oil in the master hydraulic cylinder can be freely circulated and converted in the rodless cavity and the rod cavity of the master hydraulic cylinder through the master oil pipe, so that the telescopic movement of the master hydraulic cylinder is realized. When the auxiliary hydraulic cylinder is required to work, the centralized control valve controls the two auxiliary oil pipes to be conducted, the main oil pipe is closed, oil in the auxiliary hydraulic cylinder can be freely circulated and converted in the rodless cavity and the rod-containing cavity of the auxiliary hydraulic cylinder and the rodless cavity of the main hydraulic cylinder through the two auxiliary oil pipes, the oil in the auxiliary hydraulic cylinder flows through the two auxiliary oil pipes and the rodless cavity of the main hydraulic cylinder to return to the auxiliary hydraulic cylinder in the process, and the total oil amount of the auxiliary hydraulic cylinder in the telescopic movement process is not changed, so that the oil amount of the rodless cavity of the main hydraulic cylinder is constant under the condition of constant total oil amount, and the main hydraulic cylinder does not produce telescopic action. The main hydraulic cylinder and the auxiliary hydraulic cylinder share the same pipeline system, are controlled by the centralized control valve, and can complete telescopic actions independently and mutually noninterfere, so that the operation is convenient, and the pipeline structure is simple and clear.
Additional features and advantages of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide an understanding of the application, and are incorporated in and constitute a part of this specification, illustrate the application and together with the description serve to explain, without limitation, the application. In the drawings:
FIG. 1 is a schematic diagram of a multi-pass hydraulic cylinder system according to one embodiment of the present application;
FIG. 2 is a schematic diagram of a master cylinder connecting tubing assembly according to an embodiment of the application;
FIG. 3 is a cross-sectional view of a master cylinder connecting tubing assembly in accordance with an embodiment of the present application;
FIG. 4 is a cross-sectional view of a slave cylinder according to one embodiment of the present application;
FIG. 5 is a schematic illustration of the connection of a valve seat to a master cylinder in accordance with an embodiment of the present application;
fig. 6 is a schematic diagram of connection of the adapter to the main oil pipe and the auxiliary oil pipe according to an embodiment of the application.
Description of the reference numerals
Reference numerals Name of the name Reference numerals Name of the name
10 Main hydraulic cylinder 31 Main oil pipe
11 The main hydraulic cylinder has a rod cavity 32 Auxiliary oil pipe
12 Rodless cavity of main hydraulic cylinder 33 Valve seat
13 First oil port 331 Connecting piece
14 Second oil port 34 Adapter seat
20 Auxiliary hydraulic cylinder 341 Notch
21 Auxiliary hydraulic cylinder with rod cavity 342 Flow-through chamber
22 Rodless cavity of auxiliary hydraulic cylinder 40 Centralized control valve
23 Connecting seat 50 Connecting oil pipe
231 Channel 60 Pipe clamp
Detailed Description
Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present application.
A multi-path hydraulic cylinder system according to the present application is described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the multi-path hydraulic cylinder system includes a master cylinder 10, a slave cylinder 20, an oil pipe assembly, and a centralized control valve 40. The oil pipe assembly includes a main oil pipe 31 installed at the outer circumferential wall of the main hydraulic cylinder 10 for controlling the main hydraulic cylinder 10 and two sub oil pipes 32 for controlling the sub hydraulic cylinders 20; two ends of the main oil pipe 31 are respectively communicated with a rod cavity and a rodless cavity of the main hydraulic cylinder 10, one end of each of the two auxiliary oil pipes 32 is respectively communicated with the rodless cavity of the main hydraulic cylinder 10, and the other end of each of the two auxiliary oil pipes is respectively communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder 20. The centralized control valve 40 is installed on the master cylinder 10, and the centralized control valve 40 is used for controlling the on-off of the master oil pipe 31 and the slave oil pipe 32 so as to enable the master cylinder 10 or the slave cylinder 20 to operate.
When the master hydraulic cylinder 10 is required to work, the centralized control valve 40 controls the conduction of the master oil pipe 31, the two auxiliary oil pipes 32 are closed, and oil in the master hydraulic cylinder 10 can be freely circulated and converted in the rodless cavity 12 and the rod cavity 11 of the master hydraulic cylinder through the master oil pipe 31, so that the telescopic movement of the master hydraulic cylinder 10 is realized. When the auxiliary hydraulic cylinder 20 is required to work, the centralized control valve 40 controls the conduction of the two auxiliary oil pipes 32, the main oil pipe 31 is closed, oil in the auxiliary hydraulic cylinder 20 can be freely circulated and converted in the auxiliary hydraulic cylinder rodless cavity 22, the auxiliary hydraulic cylinder rod cavity 21 and the main hydraulic cylinder rodless cavity 12 through the two auxiliary oil pipes 32, the telescopic movement of the auxiliary hydraulic cylinder 20 is realized, in the process, the oil in the auxiliary hydraulic cylinder 20 flows through the two auxiliary oil pipes 32 and the main hydraulic cylinder rodless cavity 12 and returns to the auxiliary hydraulic cylinder 20, and the total oil amount of the auxiliary hydraulic cylinder 20 in the telescopic movement process is not changed, so that the oil liquid amount of the main hydraulic cylinder rodless cavity 12 is also constant under the condition that the total oil amount is constant, and the main hydraulic cylinder 10 does not produce telescopic movement. The main hydraulic cylinder 10 and the auxiliary hydraulic cylinder 20 share the same pipeline system, are controlled by the centralized control valve 40, can complete telescopic actions independently and mutually noninterfere, and not only is convenient to operate, but also the pipeline structure is simple and clear.
In the embodiment of the present application, the oil pipe assembly further includes a valve seat 33 and an adapter seat 34 welded to the outer peripheral wall of the master cylinder 10, the valve seat 33 and the adapter seat 34 are respectively disposed corresponding to the rodless cavity and the rod cavity of the master cylinder 10, two ends of the master oil pipe 31 are respectively welded to the valve seat 33 and the outer peripheral wall of the rod cavity of the master cylinder 10, two ends of the auxiliary oil pipe 32 are respectively welded to the valve seat 33 and the adapter seat 34, a first end of the auxiliary oil pipe 32 is welded to the valve seat 33, and a second end is communicated with the auxiliary hydraulic cylinder 20 through the adapter seat 34. The centralized control valve 40 is installed on the valve seat 33, and is used for controlling the connection and disconnection of the oil between the rodless cavity 12 of the main hydraulic cylinder and the main oil pipe 31 and the auxiliary oil pipe 32, and the adaptor 34 is used for integrating the two auxiliary oil pipes 32, and adjusting the oil outlet direction of the auxiliary oil pipe 32, so that the auxiliary oil pipe 32 is convenient to connect with the auxiliary hydraulic cylinder 20. Such design is also for protecting the centralized control valve 40 because in the actual working environment, the rodless cavity of the master cylinder 10 and the valve seat 33 are close to the inside of the whole machine, and the telescopic rod cavity of the master cylinder 10 is usually arranged close to the outside of the whole machine due to the reason of external work, so that the centralized control valve 40 is arranged on the valve seat 33 inside the machine, and damage to the centralized control valve due to external collision and the like is prevented.
Meanwhile, in order to ensure the tightness of the whole multi-channel hydraulic cylinder system, oil is prevented from leaking from the connection positions of each pipeline and each hydraulic part. The welding process of the main oil pipe 31 and the valve seat 33, the welding process of the main oil pipe 31 and the outer peripheral wall of the rod cavity 11 of the main hydraulic cylinder, the welding process of the auxiliary oil pipe 32 and the valve seat 33 and the welding process of the auxiliary oil pipe 32 and the adapter 34 are all full welding, and the full welding is to weld all the contact parts of two workpieces to be welded together, so that the joint has good sealing property and stability, and the occurrence of oil leakage is well prevented. However, the welding workload of full welding is far greater than that of low-energy-consumption and low-cost localized welding, if the welding workload of the multi-channel hydraulic cylinder system is too great, the assembly cost is increased, a large amount of welding heat can be generated in the welding process, the thermal deformation of the inner cavity of the main hydraulic cylinder 10 is serious, and the deformation is eliminated through a series of complex procedures such as tempering, so that the normal operation of the hydraulic cylinder is ensured. Therefore, the welding process of the joint of the valve seat 33 and the main hydraulic cylinder 10 and the welding process of the joint of the adapter seat 34 and the main hydraulic cylinder 10, which have no requirement on tightness, are all adopting positioning welding, and the stable connection of the valve seat 33 and the adapter seat 34 on the main hydraulic cylinder 10 can be ensured.
Additionally, since the main oil pipe 31 and the auxiliary oil pipe 32 are both communicated with the rodless cavity 12 of the main hydraulic cylinder through the valve seat 33, the welding process of the valve seat 33 and the main hydraulic cylinder 10 is also required to adopt full welding originally, but in order to reduce the welding amount, the structure of the valve seat 33 is improved: as shown in fig. 5, a smaller connecting piece 331 is welded in the valve seat 33 of the present application, an inner cavity communicating with a first oil port 13 formed on the side wall of the rodless cavity of the main hydraulic cylinder 10 is formed in the connecting piece 331, and the first ends of the auxiliary oil pipe 32 and the main oil pipe 31 are communicated with the inner cavity through the side wall of the valve seat 33. Thus, the oil intercommunication between the main oil pipe 31 and the auxiliary oil pipe 32 and the rodless cavity 12 of the main hydraulic cylinder is realized, and the joint needing to be sealed is changed from the joint of the larger valve seat 33 and the main hydraulic cylinder 10 to the joint of the smaller connecting piece 331 and the main hydraulic cylinder 10, so that the joint needing to be fully welded originally is greatly reduced under the condition that the valve seat 33 can be firmly connected with the main hydraulic cylinder 10 in a positioning welding manner.
Meanwhile, the welding of workers is facilitated, the connecting piece 331 is arranged to be in a shape comprising two large circular rings and small circular rings which are connected along the axial direction, the diameter of the large circular ring is larger than that of the circular ring, the bottom of the small circular ring is welded with the outer peripheral wall of the first oil port 13, so that the concave is formed at the welding position of the connecting piece 331 and the main hydraulic cylinder 10, the operation space for welding is increased, the quality of the welding process is improved while welding is facilitated, and the risk of oil leakage is reduced.
In the embodiment of the application, in order to improve the welding stability of the main oil pipe 31 and the auxiliary oil pipe 32 on the main hydraulic cylinder 10, the damage to welding seams caused by vibration generated by the pipelines in operation is prevented, and oil leakage of a pipeline system is caused. The pipe clamp 60 is specially arranged, one end of the pipe clamp 60 is welded on the cylinder barrel of the main hydraulic cylinder 10, the other end of the pipe clamp 60 is provided with a clamping part for clamping the main oil pipe 31 and the auxiliary oil pipe 32, and the main oil pipe 31 and the auxiliary oil pipe 32 are tightly clamped by the clamping part, so that the shake of the main oil pipe 31 and the auxiliary oil pipe 32 can be greatly reduced.
In the embodiment of the present application, the side wall of the rod cavity of the master cylinder 10 is provided with the second oil port 14, the middle of the adapter seat 34 is provided with the notch 341, the top of the notch 341 self-adapting seat 34 extends to the side wall of the master cylinder 10, and the second end of the master oil pipe 31 passes through the notch 341 and is welded with the top peripheral wall of the second oil port 14.
In the embodiment of the present application, as shown in fig. 6, a circulation cavity 342 is formed on the adapter 34, a second end of the auxiliary oil pipe 32 is communicated with the circulation cavity 342 and welded with an outer peripheral wall of an end portion of the circulation cavity 342, a connecting seat 23 is mounted on the auxiliary hydraulic cylinder 20, two connecting oil pipes 50 extend from the connecting seat 23, and the two connecting oil pipes 50 are respectively communicated with the two circulation cavities 342, so that the connection between the auxiliary oil pipe 32 and the connecting oil pipes 50 is realized. Meanwhile, as shown in fig. 4, the connecting seat 23 is respectively provided with a channel 231 communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder 20, and the two connecting oil pipes 50 are respectively communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder 20 through the two channels 231. When the piston rod of the auxiliary hydraulic cylinder 20 extends, oil flows into the main hydraulic cylinder rodless cavity 12 after sequentially passing through the channel 231, the connecting seat 23, the connecting oil pipe 50, the adapter seat 34, the auxiliary oil pipe 32 and the valve seat 33 from the auxiliary hydraulic cylinder rodless cavity 21, and then flows into the auxiliary hydraulic cylinder rodless cavity 22 after sequentially passing through the valve seat 33, the auxiliary oil pipe 32, the adapter seat 34, the connecting oil pipe 50, the connecting seat 23 and the channel 231 from the main hydraulic cylinder rodless cavity 12; when the piston rod of the auxiliary hydraulic cylinder 20 is retracted, oil flows into the main hydraulic cylinder rodless cavity 12 after sequentially passing through the channel 231, the connecting seat 23, the connecting oil pipe 50, the adapter seat 34, the auxiliary oil pipe 32 and the valve seat 33 from the auxiliary hydraulic cylinder rodless cavity 22, and flows into the auxiliary hydraulic cylinder rod cavity 21 after sequentially passing through the valve seat 33, the auxiliary oil pipe 32, the adapter seat 34, the connecting oil pipe 50, the connecting seat 23 and the channel 231 from the main hydraulic cylinder rodless cavity 12.
Preferably, one adapter seat 34 can be changed into two adapter seats 34, each adapter seat is communicated with one auxiliary oil pipe 32 and one connecting oil pipe 50, the above technical effects can be achieved as well, and the two adapter seats 34 which are mutually separated can leave more welding space at the welding position of the main oil pipe 31 and the main hydraulic cylinder 10, so that the welding operation of workers is facilitated.
In the embodiment of the present application, the multi-path hydraulic cylinder system further includes a detection assembly for detecting the oil pressure of the hydraulic oil in the main oil pipe 31 and the auxiliary oil pipe 32, the detection assembly is disposed in the centralized control valve 40, and an operator monitors the working state of the multi-path hydraulic cylinder system in real time through the oil pressure data detected by the detection assembly.
For a better understanding of the welding of the multi-way hydraulic cylinder system of the present application, the welding process of the original components to which master cylinder 10 is connected is described in detail as follows:
step 1, placing a main hydraulic cylinder 10, a valve seat 33, a main oil pipe 31, an auxiliary oil pipe 32 and an adapter seat 34 through a tool according to the structure of FIG. 2;
and 2, tightly matching the connecting part 331 with the connecting part of the main hydraulic cylinder 10, and welding the connecting part by using a full-welding mode to ensure that oil leakage cannot occur at the connecting part 331 and the first oil port. Then the main oil pipe 31 and the auxiliary oil pipe 32 are orderly arranged in sequence and sleeved in the clamping part on the pipe clamp 60, so that the pipeline structure is clear and tidy, and the next welding work is facilitated;
step 3, after the main oil pipe 31 and the auxiliary oil pipe 32 are positioned through the pipe clamp 60, the joints of the auxiliary oil pipe 32, the valve seat 33 and the adapter seat 34 are all welded by full welding, and the joint of the first end of the main oil pipe 31 and the valve seat 33 is welded by full welding; in this way, the valve seat 33, the main oil pipe 31, the auxiliary oil pipe 32 and the adapter seat 34 form an integral pipe system structure, and only the connecting end of the main oil pipe 31 and the main hydraulic cylinder 10 is not connected with the adapter seat 34; then, taking the connecting piece 331 as a locating point, sleeving the connecting piece 331 into the valve seat 33, and welding to install the piping structure on the main hydraulic cylinder 10;
step 4, in order to increase the welding space between the main oil pipe 31 and the main hydraulic cylinder 10, the adapter seat 34 is lifted, and the joint of the second end of the main oil pipe 31 and the main hydraulic cylinder 10 is welded by full-length welding; preferably, in order to facilitate lifting the adapter seat 34, the main oil pipe 31 and the auxiliary oil pipe 32 are flexible steel pipes;
and 5, lowering the adapter seat 34, and welding the joints of the valve seat 33, the adapter seat 34 and the pipe clamp 60 and the main hydraulic cylinder 10 by using tack welding.
The welding method separates the main oil pipe 31 from the auxiliary oil pipe 32, so that the problem that the welding space is narrow and inconvenient to weld caused by simultaneous welding of the main oil pipe 31 and the auxiliary oil pipe 32 is avoided, the joint of the valve seat 33 and the main hydraulic cylinder 10 is prevented from being welded by positioning welding, the welding workload is reduced by arranging the connecting piece 331, and the influence on the working effect caused by deformation of the main hydraulic cylinder 10 due to welding heat is avoided.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A multi-path hydraulic cylinder system, the multi-path hydraulic cylinder system comprising:
a master cylinder (10);
a sub-hydraulic cylinder (20);
the oil pipe assembly is arranged on the peripheral wall of the main hydraulic cylinder (10) and comprises a main oil pipe (31) for controlling the expansion and contraction of the main hydraulic cylinder (10) and two auxiliary oil pipes (32) for controlling the expansion and contraction of the auxiliary hydraulic cylinder (20); two ends of the main oil pipe (31) are respectively communicated with a rod cavity and a rodless cavity of the main hydraulic cylinder (10), one end of each of the two auxiliary oil pipes (32) is respectively communicated with the rodless cavity of the main hydraulic cylinder (10), and the other end of each of the two auxiliary oil pipes is respectively communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder (20); and
and the centralized control valve (40) is arranged on the main hydraulic cylinder (10), and the centralized control valve (40) is used for controlling the on-off of the main oil pipe (31) and the auxiliary oil pipe (32) so as to enable the main hydraulic cylinder (10) or the auxiliary hydraulic cylinder (20) to act.
2. The multi-way hydraulic cylinder system according to claim 1, wherein the oil pipe assembly further comprises a valve seat (33) and an adapter seat (34) welded to the outer peripheral wall of the main hydraulic cylinder (10), the valve seat (33) and the adapter seat (34) are respectively arranged corresponding to a rodless cavity and a rod-containing cavity of the main hydraulic cylinder (10), two ends of the main oil pipe (31) are respectively welded to the valve seat (33) and the outer peripheral wall of the rod-containing cavity of the main hydraulic cylinder (10), two ends of the auxiliary oil pipe (32) are respectively welded to the valve seat (33) and the adapter seat (34), a first end of the auxiliary oil pipe (32) is welded to the valve seat (33), and a second end of the auxiliary oil pipe (32) is communicated with the auxiliary hydraulic cylinder (20) through the adapter seat (34).
3. The multi-way hydraulic cylinder system according to claim 2, wherein a first oil port (13) is formed in a rodless cavity side wall of the main hydraulic cylinder (10), a connecting piece (331) is welded in the valve seat (33), an inner cavity communicated with the first oil port (13) is formed in the connecting piece (331), and both the auxiliary oil pipe (32) and the first end of the main oil pipe (31) penetrate through the side wall of the valve seat (33) to be communicated with the inner cavity.
4. A multi-way hydraulic cylinder system according to claim 3, characterized in that the connecting piece (331) comprises two axially connected large and small rings, the diameter of the large ring being larger than the diameter of the ring, the bottom of the small ring being welded to the peripheral wall of the first port (13).
5. The multi-way hydraulic cylinder system according to claim 4, wherein a second oil port (14) is formed in a side wall of the rod cavity of the master cylinder (10), a notch (341) is formed in the middle of the adapter seat (34), the notch (341) extends from the top of the adapter seat (34) to the side wall of the master cylinder (10), and a second end of the master oil pipe (31) passes through the notch (341) and is welded with the top peripheral wall of the second oil port (14).
6. The multi-way hydraulic cylinder system according to claim 5, wherein the adapter (34) has a flow chamber (342) formed thereon, and the second end of the sub-oil pipe (32) is in communication with the flow chamber (342) and welded to an end peripheral wall of the flow chamber (342).
7. The multi-path hydraulic cylinder system according to claim 6, wherein a connecting seat (23) is mounted on the auxiliary hydraulic cylinder (20), two connecting oil pipes (50) extend from the connecting seat (23), and the two connecting oil pipes (50) are respectively communicated with the circulation cavity (342) so as to communicate the auxiliary oil pipe (32) with the connecting oil pipes (50).
8. The multi-path hydraulic cylinder system according to claim 7, wherein the connecting base (23) is provided with a channel (231) communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder (20), and the two connecting oil pipes (50) are respectively communicated with the rodless cavity and the rod cavity of the auxiliary hydraulic cylinder (20) through the two channels (231).
9. The multi-way hydraulic cylinder system according to any one of claims 1 to 8, further comprising a detection assembly for detecting the oil pressure of the hydraulic oil in the main oil pipe (31) and the sub oil pipe (32).
10. The multi-way hydraulic cylinder system according to any one of claims 1 to 8, further comprising a pipe clamp (60), one end of the pipe clamp (60) being welded to the cylinder tube of the master cylinder (10), the other end having a clamping portion for clamping the master oil pipe (31) and the slave oil pipe (32).
CN202210187848.4A 2022-02-28 2022-02-28 Multi-way hydraulic cylinder system Pending CN116696884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210187848.4A CN116696884A (en) 2022-02-28 2022-02-28 Multi-way hydraulic cylinder system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210187848.4A CN116696884A (en) 2022-02-28 2022-02-28 Multi-way hydraulic cylinder system

Publications (1)

Publication Number Publication Date
CN116696884A true CN116696884A (en) 2023-09-05

Family

ID=87843878

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210187848.4A Pending CN116696884A (en) 2022-02-28 2022-02-28 Multi-way hydraulic cylinder system

Country Status (1)

Country Link
CN (1) CN116696884A (en)

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