Three-cylinder hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a three-cylinder hydraulic oil cylinder. The three-cylinder hydraulic oil cylinder comprises a plurality of cylinder barrels and an adapter pipe, the cylinder barrels are uniformly distributed, and piston rods which are in sliding connection are inserted into the cylinder barrels; an oil inlet pipe and an exhaust pipe which are communicated with the interior of the cylinder barrel are fixedly installed on the upper portion and the lower portion of the interior of the cylinder barrel respectively, the number of the transfer pipes is two, three communicating pipes communicated with the interior of the transfer pipes are fixedly installed on the two transfer pipes respectively, and the ends of the communicating pipes are communicated with the corresponding oil inlet pipe and the exhaust pipe respectively. When the three-cylinder hydraulic oil cylinder provided by the utility model is used, hydraulic oil can be synchronously injected into the three independent cylinder barrels, so that the piston rods in the three cylinder barrels are synchronously jacked, the load pressure of a single hydraulic oil cylinder can be dispersed, and the stability and the output uniformity of the three-cylinder hydraulic oil cylinder during use can be further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder technical field especially relates to a three cylinder hydraulic cylinder. BACKGROUND

[0002] Hydraulic cylinder is the hydraulic energy conversion mechanical energy, do linear reciprocating motion (or swing motion) hydraulic actuator. It simple structure, reliable work, therefore in the hydraulic system of various machines is widely used.

[0003] The existing hydraulic cylinder is mostly single cylinder structure, in some need to enhance the load capacity application field, the single cylinder hydraulic cylinder when working, then will be subjected to relatively big load, and long time in this kind of state runs, then increases the probability of causing hydraulic cylinder damage.

[0004] Therefore, it is necessary to provide a new three cylinder hydraulic cylinder to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a three cylinder hydraulic cylinder.

[0006] The three cylinder hydraulic cylinder provided by the utility model comprises a cylinder barrel and an adapter pipe, the cylinder barrel is provided with a plurality of and is uniformly distributed, and a slidingly connected piston rod is arranged in the cylinder barrel.

[0007] An oil inlet pipe and an exhaust pipe are fixedly installed at the upper and lower parts of the cylinder barrel respectively and are in communication with the inside of the cylinder barrel, the adapter pipe is provided with two, three communication pipes in communication with the inside of the adapter pipe are fixedly installed on the two adapter pipes, the end of the communication pipe is in communication with the corresponding oil inlet pipe and exhaust pipe, an electromagnetic valve is fixedly connected on the communication pipe, and a flow meter is fixedly installed on the communication pipe in communication with the oil inlet pipe.

[0008] Preferably, the cylinder barrel is externally provided with a linkage assembly for increasing the lateral support strength of the piston rod, the linkage assembly comprises a mounting plate, and the mounting plate comprises two and is symmetrically distributed on the outer wall of the piston rod.

[0009] Preferably, the inside of the piston rod is provided with a through hole, the inside of the mounting plate is provided with a mounting hole at the position opposite to the through hole, the mounting hole and the through hole are fixedly connected through bolts, and the top end of the piston rod is fixedly installed with a connecting block.

[0010] Preferably, the top of the mounting plate is fixedly installed with a plug rod through bolts, the outside of the plug rod is sleeved with a slidingly connected plug frame, and the end section of the inner wall of the plug frame and the end section of the outer wall of the plug rod are both convex structures.

[0011] Preferably, the bottom end of the cylinder is provided with a support plate for positioning the cylinder assembly, and a plurality of evenly distributed positioning rings are fixedly installed on the top of the support plate. The inside of the positioning rings abuts against and slides against the outer wall of the cylinder, and docking blocks are fixedly installed on both sides of the outer wall of the cylinder.

[0012] Preferably, a docking frame is fixedly installed on the top of the support plate at the position opposite to the docking block. The docking frame has a docking hole inside, and the docking hole and the through hole are fixedly connected by bolts.

[0013] Compared with related technologies, the three-cylinder hydraulic cylinder provided by this utility model has the following beneficial effects:

[0014] 1. In use, this utility model can simultaneously inject hydraulic oil into three independent cylinders, causing the piston rods in the three cylinders to rise synchronously, thereby dispersing the load pressure of a single hydraulic cylinder and improving the stability and uniformity of the output of the device.

[0015] 2. During use, the unfolded piston rod will slide inside the insertion frame via the mounting plate, thereby providing lateral support for the piston rod in the horizontal direction. This can help improve the lateral support strength of the device in later use. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the three-cylinder hydraulic cylinder provided by this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the transfer pipe and its components is shown.

[0018] Figure 3 for Figure 1 A schematic diagram of the cylinder and its components shown;

[0019] Figure 4 for Figure 1 A schematic diagram of the support plate and its components shown;

[0020] Figure 5 for Figure 1 The diagram shows the structure of the linkage component.

[0021] The following are the labels in the diagram: 1. Cylinder; 11. Piston rod; 111. Through hole; 12. Connecting block; 13. Oil inlet pipe; 14. Exhaust pipe; 15. Connecting block; 2. Support plate; 21. Positioning ring; 22. Connecting frame; 221. Connecting hole; 3. Adapter pipe; 31. Connecting pipe; 32. Solenoid valve; 33. Flow meter; 4. Linkage assembly; 41. Mounting plate; 411. Mounting hole; 42. Insert rod; 43. Inserting frame. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0024] Please refer to Figures 1 to 5 The three-cylinder hydraulic oil cylinder provided by the utility model embodiment comprises a cylinder barrel 1 and an adapter pipe 3.

[0025] In the embodiment of the utility model, please refer to Figures 1 to 5 The cylinder barrel 1 is provided with a plurality of and uniformly distributed piston rods 11 which are slidingly connected and arranged inside the cylinder barrel 1; an oil inlet pipe 13 and an exhaust pipe 14 which are in communication with the inside of the cylinder barrel 1 are fixedly installed above and below the inside of the cylinder barrel 1 respectively, the adapter pipe 3 is provided with two, three communication pipes 31 which are in communication with the inside of the adapter pipe 3 are fixedly installed on the two adapter pipes 3 respectively, the ends of the communication pipes 31 are in communication with the corresponding oil inlet pipe 13 and exhaust pipe respectively, the electromagnetic valve 32 is fixedly connected and arranged on the communication pipe 31, and the flow meter 33 is fixedly installed on the communication pipe 31 which is in communication with the oil inlet pipe 13.

[0026] It should be noted that: by adopting the adapter pipe 3 and the communication pipe 31, three independent hydraulic cylinders are installed in parallel, and when used, hydraulic oil can be injected into three independent cylinder barrels 1 synchronously, so that the piston rods 11 in the three cylinder barrels 1 are lifted synchronously, thereby the load pressure of a single hydraulic cylinder can be dispersed, and the stability and uniformity of the device during use can be improved.

[0027] And in the subsequent use process, when a cylinder barrel 1 and the components inside it need to be repaired and maintained due to damage, the damaged device can be independently disassembled and replaced, and in this process, the corresponding electromagnetic valve 32 can be closed, so that the remaining cylinder barrels 1 can perform emergency operation, and independent disassembly and replacement can also reduce the maintenance and use cost of the device in the later period.

[0028] In the embodiment of the utility model, please refer to Figures 1 to 5The outer side of the cylinder barrel 1 is provided with a linkage assembly 4 for increasing the lateral support strength of the piston rod 11, the linkage assembly 4 comprises a mounting plate 41, and the mounting plate 41 comprises two mounting plates which are symmetrically distributed on the outer wall of the piston rod 11, the inside of the piston rod 11 is provided with a through hole 111, the inside of the mounting plate 41 is provided with a mounting hole 411 at the position opposite to the through hole 111, the mounting hole 411 and the through hole 111 are fixedly connected through bolts, and the top end of the piston rod 11 is fixedly provided with a connecting block 12, the top of the mounting plate 41 is fixedly provided with a plug rod 42 through bolts, the outer side of the plug rod 42 is provided with a plug frame 43 which is connected in a sliding mode, and the end section of the inner wall of the plug frame 43 and the end section of the outer wall of the plug rod 42 are both convex structures.

[0029] It should be noted that, in use, when the piston rod 11 moves in the inside of the cylinder barrel 1, the moving piston rod 11 drives the plug rod 42 to move in the inside of the plug frame 43 through the mounting plate 41, and since the height of the plug frame 43 is greater than the lifting stroke of the piston rod 11, the plug rod 42 can always move in the inside of the plug frame 43, and the end section of the inner wall of the plug frame 43 and the end section of the outer wall of the plug rod 42 are both convex structures, so that the lateral torsion resistance of the plug rod 42 in the inside of the plug frame 43 is improved, thereby the lateral support strength of the horizontal plane of the piston rod 11 after unfolding is improved, and the stability of the device in later use is improved.

[0030] In the embodiment of the utility model, please refer to Figures 1 to 5 The bottom end of the cylinder barrel 1 is provided with a support plate 2 for positioning the assembly of the cylinder barrel 1, the top of the support plate 2 is fixedly provided with a plurality of evenly distributed positioning rings 21, the inside of the positioning ring 21 abuts against and is connected in a sliding mode with the outer wall of the cylinder barrel 1, and the two sides of the outer wall of the cylinder barrel 1 are both fixedly provided with butt blocks 15, the top of the support plate 2 is fixedly provided with a butt frame 22 at the position opposite to the butt block 15, the inside of the butt frame 22 is provided with a butt hole 221, and the butt hole 221 and the through hole 111 are fixedly connected through bolts.

[0031] It should be noted that, through the arrangement of the positioning ring 21 and the butt frame 22, when a plurality of cylinder barrels 1 are assembled, the butt block 15 can move along the inner wall of the butt frame 22 when being placed in the inside of the positioning ring 21, so that the track of the downward movement of the cylinder barrel 1 is guided, the cylinder barrel 1 can be stably inserted into the positioning ring 21, and after the positioning of the cylinder barrel 1 is completed, the butt block 15 and the butt frame 22 can be fixed through bolts, so that the preliminary fixing of the connection of the plurality of cylinder barrels 1 can be realized.

[0032] The working principle of the three-cylinder hydraulic oil cylinder is as follows:

[0033] In the use of the device, the cylinder 1 can be placed in the positioning ring 21 on the top of the support plate 2, and then the butt joint block 15 on the outer side of the cylinder 1 is opposite to the butt joint frame 22 on the top of the support plate 2, so that the butt joint block 15 can smoothly slide along the inner wall of the butt joint frame 22 during the placement of the cylinder 1, until the bottom of the cylinder 1 abuts against the top of the support plate 2, then the bolt can be removed to fix the butt joint block 15 and the butt joint frame 22, thus the fixing of the cylinder 1 and the support plate 2 is completed.

[0034] Then the adapter pipe 3 can be removed, and the flow communication pipe 31 on the adapter pipe is communicated with the oil inlet pipe 13 and the exhaust pipe 14, so that the three cylinders 1 can be connected in parallel.

[0035] Then the mounting frame in the linkage assembly 4 can be mounted on the outer side of the piston rod 11 in the three cylinders 1, and the bolt is inserted into the through hole 111 and the mounting hole 411 to connect the mounting plate 41 and the piston rod 11, and then the plug rod 42 is inserted into the plug frame 43, and the plug rod 42 and the mounting plate 41 are fixed by the bolt, so that the assembly of the device is completed, and then the device can be moved to the required position and connected with the external device through the connecting block 12.

[0036] Then in the use process, the oil can be injected into the multiple cylinders 1 through the adapter pipe 3, and the piston rod 11 can be taken out, so that the multiple piston rods 11 can be synchronously pushed out and expanded, so that the load pressure of the single hydraulic cylinder can be dispersed, and the stability and uniformity of the device in use can be improved.

[0037] And in the process of pushing out and expanding the piston rod 11, the piston rod 11 can also drive the plug rod 42 on the side wall to move synchronously, at this time the moving plug rod 42 vertically slides in the plug frame 43, and in this process, the plug rod 42 and the plug frame 43 abut against each other, so that the lateral side of the piston rod 11 can be supported, thereby the lateral support strength of the device in the later use process can be improved.

[0038] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0039] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A triple hydraulic ram, characterized in that, Include: Cylinder (1) and adapter pipe (3), the cylinder (1) is provided with a plurality of and evenly distributed, and the inside of the cylinder (1) is provided with a slidingly connected piston rod (11); The upper and lower parts of the inside of the cylinder (1) are respectively fixedly installed with an oil inlet pipe (13) and an exhaust pipe (14) communicated with the inside thereof, the adapter pipe (3) is provided with two, two The adapter pipes (3) are fixedly installed with three communication pipes (31) communicated with the inside thereof, the end of the communication pipe (31) is respectively communicated with the corresponding oil inlet pipe (13) and the exhaust pipe, the communication pipe (31) is provided with a fixedly connected electromagnetic valve (32), and the communication pipe (31) communicated with the oil inlet pipe (13) is fixedly installed with a flowmeter (33).

2. The triple hydraulic ram as defined in claim 1, wherein, The outside of the cylinder (1) is provided with a linkage assembly (4) for increasing the lateral support strength of the piston rod (11), the linkage assembly (4) comprises an installation plate (41), and the installation plate (41) comprises two and is symmetrically distributed on the outer wall of the piston rod (11).

3. The triple hydraulic ram as defined in claim 2, wherein, The inside of the piston rod (11) is provided with a through hole (111), the inside of the installation plate (41) is provided with a mounting hole (411) opposite to the through hole (111), the mounting hole (411) and the through hole (111) are fixedly connected by bolts, and the top end of the piston rod (11) is fixedly installed with a connecting block (12).

4. The triple hydraulic ram as defined in claim 3, wherein, The top of the installation plate (41) is fixedly installed with a plug rod (42) through bolts, the outside of the plug rod (42) is provided with a slidingly connected plug frame (43), and the end section of the inner wall of the plug frame (43) and the end section of the outer wall of the plug rod (42) are both convex structures.

5. The triple hydraulic ram cylinder of claim 1, wherein, The bottom end of the cylinder (1) is provided with a support plate (2) for positioning the assembly of the cylinder (1), the top of the support plate (2) is fixedly installed with a plurality of evenly distributed positioning rings (21), the inside of the positioning ring (21) is abutted with the outer wall of the cylinder (1) and is slidingly connected, and the both sides of the outer wall of the cylinder (1) are fixedly installed with butt blocks (15).

6. The triple hydraulic ram as defined in claim 5, wherein, The support plate (2) is fixedly installed with a butt frame (22) opposite to the butt block (15) on the top, the inside of the butt frame (22) is provided with a butt hole (221), and the butt hole (221) and the through hole (111) are fixedly connected by bolts.

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