Hydraulic machine with oil cylinder sealing ring convenient to replace

Abstract

The utility model relates to the technical field of hydraulic machines, and discloses a hydraulic machine convenient to replace an oil cylinder sealing ring, which comprises a working table, a stand column is arranged at the top of the working table, a floating sliding block is sleeved on the stand column, a main sliding block is arranged on the stand column and above the floating sliding block, an upper cross beam is arranged at the top of the stand column, and an oil cylinder sealing ring is arranged on the upper cross beam. Upper locking nuts are arranged at the two ends of the top of the upper cross beam, an upper main cylinder is installed at the bottom of the upper cross beam, a floating cylinder is arranged in the upper cross beam, a connecting rod is connected to a piston rod of the floating cylinder, a connecting flange is arranged at the bottom of the piston rod, and a connecting nut is arranged at the top of the connecting rod; the connecting rod and the piston rod are connected through a connecting flange and a connecting nut. When the sealing ring is replaced, the machine does not need to be disassembled, so that a lot of time is saved, a worker can operate the sealing ring by himself or herself, and does not need to spend money to a manufacturer or a professional and spend money, and particularly, time, trouble and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, and particularly relates to a hydraulic press which is convenient for replacing the oil cylinder sealing ring. Background Technique

[0002] A large-tonnage special graphite hydraulic press and a 28-series double-acting hydraulic press both use an oil cylinder called a floating cylinder, and the floating cylinder is installed on the upper crossbeam. Since such a hydraulic press generally has four beams, namely the upper crossbeam, the main slider, the floating slider, and the workbench, the piston rod of the floating cylinder needs to be lengthened and passed through the hole of the main slider, and then it can be connected to the floating slider by a connecting flange. Therefore, the piston rod of the floating cylinder is very long. The sealing ring of the oil cylinder belongs to a vulnerable part. After the hydraulic press has been used for a long time, the sealing ring is prone to wear and aging. At this time, it is necessary to replace the sealing ring of the floating cylinder.

[0003] The floating cylinder is very long. When disassembling the oil cylinder to replace the sealing ring, it is necessary to remove the upper locking nut of the column, and then remove the upper crossbeam and the oil cylinder together. If it is a large-tonnage oil cylinder, it is necessary to loosen the oil cylinder first, remove the upper crossbeam, and then remove the oil cylinder. Finally, the floating cylinder can be removed. If the hydraulic press is old and the position of the locking nut is rusty, the disassembly is very time-consuming, sometimes taking several days, and it is not easy to remove. After replacing the sealing ring, it is necessary to reinstall the floating cylinder first, and then install other components of the hydraulic press, readjust the accuracy, and debug the state of the hydraulic press. Disassembling, installing, and debugging the machine cannot be completed by the customer himself, and it is necessary to seek the help of the equipment manufacturer together, or invite professional personnel. Therefore, it is time-consuming and laborious and requires the cooperation of professional personnel. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic press which is convenient for replacing the oil cylinder sealing ring, so as to solve the problems put forward in the above background technique.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution:

[0006] A hydraulic press which is convenient for replacing the oil cylinder sealing ring, including a workbench, a column is arranged on the top of the workbench, a floating slider is sleeved on the column, a main slider is arranged on the column above the floating slider, an upper crossbeam is arranged on the top of the column, upper locking nuts are arranged at both ends of the top of the upper crossbeam, an upper main cylinder is installed at the bottom of the upper crossbeam, a floating cylinder is arranged inside the upper crossbeam, a connecting rod is connected to the piston rod of the floating cylinder, a connecting flange is arranged at the bottom of the piston rod, a connecting nut is arranged at the top of the connecting rod, the connecting rod and the piston rod are connected through the connecting flange and the connecting nut, the connecting flange is provided with a sufficient number of screw through holes and is connected to the connecting nut on another connecting rod through fasteners, and the bottom end of the connecting rod is also connected to the floating slider through the connecting flange.

[0007] As a preferred technical solution of the present utility model, the upper master cylinder is located between the upper cross beam and the master slide block.

[0008] As a preferred technical solution of the present utility model, a positioning pin is provided at the center of the end portions of the piston rod and the connecting rod.

[0009] As a preferred technical solution of the present utility model, the connecting flange at the bottom of the connecting rod is connected to the floating slide block through a fastener passing through the mounting hole on the connecting flange.

[0010] As a preferred technical solution of the present utility model, the connecting flange sleeve is arranged at the end of the piston rod, and the connecting nut sleeve is arranged at the top end of the connecting rod.

[0011] As a preferred technical solution of the present utility model, the connecting flange at the bottom of the connecting rod is sleeved at the bottom end of the connecting rod, and a positioning pin is arranged between the center of the bottom of the connecting rod and the upper end of the floating slide block.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] By setting the connecting nut, the connecting flange and the positioning pin, when disassembling and assembling the floating cylinder to replace the sealing ring, only the connecting flanges at the upper and lower ends of the connecting rod need to be removed first, and then the connecting rod can be removed. After the connecting rod is removed, the slide block is placed at the lower limit position, and there is enough space for disassembling and assembling the floating cylinder, so that the floating cylinder can be disassembled. After replacing the sealing ring outside the machine body, it is also very convenient to install it back. After the improvement, the customer can operate by himself to replace the sealing ring, without the need to disassemble the machine, saving a lot of time, and there is no need to spend money to invite the manufacturer or professional, saving money, and it is particularly time-saving, labor-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more obvious:

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure before improvement of the present utility model;

[0017] Figure 3 is the present utility model Figure 1 The enlarged schematic diagram of the structure at A in.

[0018] In the figure: 1, workbench; 2, column; 3, floating slider; 4, main slider; 5, piston rod; 6, floating cylinder; 7, upper main cylinder; 8, upper crossbeam; 9, upper locking nut; 10, connecting rod; 11, positioning pin; 12, connecting flange; 13, connecting nut. Specific implementation manner

[0019] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, rather than limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings. In the drawings of the embodiments of the present utility model: different types of hatching lines in the figure are not marked according to the national standard, nor are the materials of the components required. It is to distinguish the sectional views of the components in the figure.

[0020] Please refer to Figures 1-3 , a hydraulic press for facilitating the replacement of the oil cylinder sealing ring, including a workbench 1. A column 2 is arranged on the top of the workbench 1. A floating slider 3 is sleeved on the column 2. A main slider 4 is arranged on the column 2 above the floating slider 3. An upper crossbeam 8 is arranged at the top of the column 2. Upper locking nuts 9 are arranged at both ends of the top of the upper crossbeam 8. An upper main cylinder 7 is installed at the bottom of the upper crossbeam 8. A floating cylinder 6 is arranged inside the upper crossbeam 8. A connecting rod 10 is connected to the piston rod 5 of the floating cylinder 6. A connecting flange 12 is arranged at the bottom of the piston rod 5. A connecting nut 13 is arranged at the top of the connecting rod 10. The connecting rod 10 and the piston rod 5 are connected through the connecting flange 12 and the connecting nut 13. The connecting flange 12 is provided with a sufficient number of screw through holes and is connected to the connecting nut 13 on another connecting rod 10 through fasteners. The bottom end of the connecting rod 10 is also connected to the floating slider 3 through the connecting flange 12.

[0021] Among them, the upper main cylinder 7 is located between the upper crossbeam 8 and the main slider 4.

[0022] Among them, a positioning pin 11 is arranged at the center of the end parts of the piston rod 5 and the connecting rod 10. The positioning pin 11 plays a positioning role.

[0023] Among them, the connecting flange 12 at the bottom of the connecting rod 10 is connected to the floating slider 3 through fasteners passing through the mounting holes on the connecting flange 12.

[0024] Among them, the connecting flange 12 is sleeved on the end part of the piston rod 5, and the connecting nut 13 is sleeved on the top end part of the connecting rod 10.

[0025] Among them, the connecting flange 12 at the bottom of the connecting rod 10 is sleeved on the bottom end part of the connecting rod 10. A positioning pin 11 is arranged between the center of the bottom of the connecting rod 10 and the upper end of the floating slider 3.

[0026] Working principle and usage process of the utility model: Firstly, when disassembling and assembling the floating cylinder 6 to replace the sealing ring, only need to remove the connecting flanges 12 at the upper and lower ends of the connecting rod 10 first, then the connecting rod 10 can be removed. After the connecting rod 10 is removed, place the slider at the lower limit, and there will be enough space for disassembling and assembling the floating cylinder 6, so the floating cylinder 6 can be disassembled. After replacing the sealing ring of the floating cylinder 6 outside the fuselage, it is also very convenient to install it back. After the improvement, the customer can operate to replace the sealing ring by himself, without the need to disassemble the machine, saving a lot of time, and there is no need to spend money to invite the manufacturer or professional, which is especially time-saving, labor-saving and worry-saving. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solution formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. A hydraulic press for facilitating replacement of a cylinder seal ring, comprising a workbench (1), characterized in that: A column (2) is arranged on the top of the workbench (1), a floating slider (3) is sleeved on the column (2), a main slider (4) is arranged on the column (2) and above the floating slider (3), an upper crossbeam (8) is arranged on the top of the column (2), upper locking nuts (9) are arranged at both ends of the top of the upper crossbeam (8), an upper main cylinder (7) is installed at the bottom of the upper crossbeam (8), a floating cylinder (6) is arranged inside the upper crossbeam (8), and a connecting rod (1) is connected to the piston rod (5) of the floating cylinder (6). 0), a connecting flange (12) is provided at the bottom of the piston rod (5), a connecting nut (13) is provided at the top of the connecting rod (10), the connecting rod (10) and the piston rod (5) are connected via the connecting flange (12) and the connecting nut (13), a sufficient number of screw through holes are provided on the connecting flange (12) and the connecting nut (13) is connected to the connecting nut (13) on another connecting rod (10) via fasteners, and the bottom end of the connecting rod (10) is also connected to the floating slider (3) via the connecting flange (12).

2. A hydraulic press for facilitating replacement of cylinder sealing rings according to claim 1, characterized in that: The upper master cylinder (7) is located between the upper cross beam (8) and the main slide block (4).

3. A hydraulic press for facilitating replacement of cylinder seal rings according to claim 1, characterized in that: Positioning pins (11) are provided at the centers of the ends of the piston rod (5) and the connecting rod (10).

4. A hydraulic press for facilitating replacement of cylinder seal rings according to claim 1, characterized in that: The connecting flange (12) at the bottom of the connecting rod (10) is connected to the floating slider (3) via a fastener passing through a mounting hole on the connecting flange (12).

5. A hydraulic press for facilitating replacement of cylinder seal rings according to claim 1, characterized in that: The connecting flange (12) is sleeved on the end of the piston rod (5), and the connecting nut (13) is sleeved on the top end of the connecting rod (10).

6. A hydraulic press for facilitating replacement of cylinder seal rings according to claim 1, characterized in that: The connecting flange (12) at the bottom of the connecting rod (10) is sleeved on the bottom end of the connecting rod (10), and a positioning pin (11) is provided between the bottom center of the connecting rod (10) and the upper end of the floating slider (3).

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