Large-diameter hydraulic oil cylinder convenient to disassemble and assemble

Abstract

The large-diameter hydraulic oil cylinder comprises a base, a main body device and a fixing device, connecting devices are fixedly connected to the upper end and the lower end of the left side of the base, the main body device is fixedly connected to the middle of the right side of the base, and supporting rods are fixedly connected to the upper side, the lower side, the left side and the right side of the right side of the base. A hydraulic piston rod is slidably connected into the main body device, a piston block is fixedly connected to the left end of the hydraulic piston rod, a fixing device is fixedly connected to the right side of the main body device, a second connecting plate is in threaded connection with the middle of the right side of the fixing device, and the main body device is formed by combining a shell and a connecting block. The upper end and the lower end of the right side of the shell are fixedly connected with connecting blocks. According to the large-diameter hydraulic oil cylinder convenient to disassemble and assemble, the fixing block and the hydraulic piston rod can be disassembled conveniently, the large-diameter hydraulic oil cylinder can be connected with an external device conveniently, and the first connecting plate can be rotated and fixed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field related to large-diameter hydraulic oil cylinders, in particular to a large-diameter hydraulic oil cylinder that is easy to disassemble and assemble. Background Art

[0002] Hydraulic cylinders are one of the common hydraulic equipment in our lives. At the same time, there are hydraulic cylinders of different models and sizes according to different usage scenarios. In order to improve the carrying capacity of hydraulic cylinders, the diameter of hydraulic cylinders is getting larger and larger.

[0003] The existing large-diameter hydraulic cylinders are inconvenient to disassemble and assemble. The invention patent with authorization announcement number CN110748525B discloses a large-diameter hydraulic cylinder with uniform stress distribution, including a positioning rod, a hydraulic cylinder body, a first connecting buckle, a hydraulic piston rod, and a second connecting buckle. The hydraulic cylinder body is a cylindrical structure, the positioning rod and the hydraulic cylinder body are close together, the first connecting buckle and the hydraulic cylinder body are welded together, and the large-diameter hydraulic cylinder cooperates with each other through a hydraulic oil distributor and a hydraulic drive structure. When the hydraulic oil is input, the thrust on the piston block is more uniform, which effectively avoids uneven pressure on the sliding surface of the piston block, which then causes the piston block to tilt to one side and accelerates wear, thereby ensuring the sealing of the hydraulic cylinder and extending the service life of the hydraulic cylinder. However, this device is not convenient to disassemble and assemble. Therefore, we propose a large-diameter hydraulic cylinder that is easy to disassemble and assemble to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a large-diameter hydraulic oil cylinder which is easy to disassemble and assemble, so as to solve the problem that the existing large-diameter hydraulic oil cylinder mentioned in the above background technology is inconvenient to disassemble and assemble.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-diameter hydraulic cylinder that is easy to disassemble and assemble, comprising a base, a connecting device, a main body device and a fixing device, the left side of the base is rotatably connected with the connecting device, and the middle part of the right side of the base is fixedly connected with the main body device, and the upper, lower, left and right sides of the right side of the base are fixedly connected with support rods;

[0006] A hydraulic piston rod is slidably connected inside the main device, and a piston block is fixedly connected to the left end of the hydraulic piston rod. A fixing device is fixedly connected to the right side of the main device, and a second connecting plate is threadedly connected to the middle part of the right side of the fixing device.

[0007] Preferably, the connecting device is composed of a rotating block, a first connecting plate, a threaded rod and a stabilizing block, the outer side of the rotating block is rotatably connected to the first connecting plate, and both ends of the outer side of the rotating block are fixedly connected to the threaded rod, and the outer side of the threaded rod is threadedly connected to the stabilizing block.

[0008] Preferably, two ends of the rotating block are slidably connected to the side walls of the base.

[0009] Preferably, the main device is composed of a shell and a connecting block, and the upper and lower ends of the right side of the shell are fixedly connected to the connecting blocks.

[0010] Preferably, the fixing device is composed of a fixing block, a sealing ring and a screw. The sealing ring is fixedly connected to the middle of the fixing block, and the screws are threadedly connected to the upper and lower ends of the fixing block.

[0011] Preferably, the connecting block is snap-connected to the upper and lower ends of the fixing block.

[0012] Preferably, the hydraulic piston rod is slidably connected to the inner side of the sealing ring.

[0013] Preferably, the connecting block is fixedly connected to the fixing block by screws.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the large-diameter hydraulic oil cylinder that is easy to disassemble and assemble is convenient for removing the fixing block and the hydraulic piston rod, convenient for connecting the large-diameter hydraulic oil cylinder with an external device, and convenient for rotating the first connecting plate and fixing the first connecting plate;

[0015] 1. The main device and the fixing device are fixedly connected by screws. The connecting block is connected to the left side of the upper and lower ends of the fixing block. The connecting block and the fixing block are fixed by screws. By removing the screws, the fixing block and the hydraulic piston rod can be easily removed;

[0016] 2. The upper and lower ends of the left side of the base are fixedly connected with a connecting device, and the middle part of the right side of the hydraulic piston rod is threadedly connected with a second connecting plate. Holes are opened in the middle of the connecting device and the second connecting plate to facilitate the connection of the large-diameter hydraulic cylinder with the external device;

[0017] 3. A connecting device is connected to the left side of the base, and a rotating block in the connecting device is rotated on the base to rotate the first connecting plate. Both ends of the outer side of the rotating block are fixedly connected with threaded rods, and the outer side of the threaded rod is threadedly connected with a stabilizing block. The stabilizing block is rotated and tightened to make the stabilizing block tightly connected to the outer side of the base, so that the first connecting plate is convenient to rotate and fix. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0019] Figure 2 This is a perspective structural diagram of the utility model;

[0020] Figure 3 It is a side view cutaway structural schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure between the main device and the fixing device of the utility model.

[0022] In the figure: 1. base; 2. connecting device; 201. rotating block; 202. first connecting plate; 203. threaded rod; 204. stabilizing block; 3. main device; 301. shell; 302. connecting block; 4. supporting rod; 5. hydraulic piston rod; 6. piston block; 7. fixing device; 701. fixing block; 702. sealing ring; 703. screw; 8. second connecting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a large-diameter hydraulic cylinder that is easy to disassemble and assemble, including a base 1, a connecting device 2, a rotating block 201, a first connecting plate 202, a threaded rod 203, a stabilizing block 204, a main device 3, a shell 301, a connecting block 302, a support rod 4, a hydraulic piston rod 5, a piston block 6, a fixing device 7, a fixing block 701, a sealing ring 702, a screw 703 and a second connecting plate 8.

[0025] The upper and lower ends of the left side of the base 1 are fixedly connected with a connecting device 2, which is composed of a rotating block 201, a first connecting plate 202, a threaded rod 203 and a stabilizing block 204. The outer side of the rotating block 201 is rotatably connected with the first connecting plate 202, and the two ends of the outer side of the rotating block 201 are fixedly connected with the threaded rod 203, and the outer side of the threaded rod 203 is threadedly connected with the stabilizing block 204, and the two ends of the rotating block 201 are slidably connected to the side wall of the base 1, and the rotating block 201 rotates in the groove on the side wall of the base 1. The stabilizing block 204 is tightened on the base 1, and the connecting device 2 can be fixed to the base 1. The middle part of the right side of the base 1 is fixedly connected with a main device 3, which is composed of a shell 301 and a connecting block 302. The upper and lower ends of the right side of the shell 301 are fixedly connected with the connecting block 302, and the upper, lower, left and right sides of the right side of the base 1 are fixedly connected with a support rod 4, and the right side of the support rod 4 is fixedly connected to the inner side of the right end of the shell 301;

[0026] The main device 3 is internally slidably connected with a hydraulic piston rod 5, the left end of the hydraulic piston rod 5 is fixedly connected with a piston block 6, the right side of the main device 3 is fixedly connected with a fixing device 7, the fixing device 7 is composed of a fixing block 701, a sealing ring 702 and a screw 703, the middle part of the fixing block 701 is fixedly connected with a sealing ring 702, the upper and lower ends of the fixing block 701 are both threadedly connected with screws 703, the connecting block 302 is snap-connected with the upper and lower ends of the fixing block 701, the hydraulic piston rod 5 is slidably connected to the inner side of the sealing ring 702, the screw 703 is connected with the connecting block 302 and the fixing The upper and lower ends of the fixed block 701 are threadedly connected. By removing the screw 703 and then detaching the fixing device 7 from the main device 3 and the hydraulic piston rod 5 to the right, the hydraulic piston rod 5 and the piston block 6 are removed from the main device 3. The middle part of the right side of the fixing device 7 is threadedly connected to the second connecting plate 8. The middle part of the connecting device 2 and the second connecting plate 8 are provided with holes to facilitate the connection of the hydraulic cylinder with external equipment. The above completes a series of operations of the large-diameter hydraulic cylinder that is easy to disassemble and assemble. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0027] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large-diameter hydraulic cylinder that is easy to disassemble and assemble, comprising a base (1), a connecting device (2), a main device (3) and a fixing device (7), characterized in that: The left side of the base (1) is rotatably connected to a connecting device (2), and the middle part of the right side of the base (1) is fixedly connected to a main device (3), and the right side of the base (1) is fixedly connected to support rods (4); The main body device (3) is internally slidably connected to a hydraulic piston rod (5), and the left end of the hydraulic piston rod (5) is fixedly connected to a piston block (6). The right side of the main body device (3) is fixedly connected to a fixing device (7), and the middle part of the right side of the fixing device (7) is threadedly connected to a second connecting plate (8).

2. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 1, characterized in that: The connecting device (2) is composed of a rotating block (201), a first connecting plate (202), a threaded rod (203) and a stabilizing block (204); the outer side of the rotating block (201) is rotatably connected to the first connecting plate (202), and both ends of the outer side of the rotating block (201) are fixedly connected to the threaded rod (203), and the outer side of the threaded rod (203) is threadedly connected to the stabilizing block (204).

3. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 2, characterized in that: The two ends of the rotating block (201) are slidably connected to the side walls of the base (1).

4. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 1, characterized in that: The main device (3) is composed of a shell (301) and a connecting block (302), and the upper and lower ends of the right side of the shell (301) are fixedly connected to the connecting block (302).

5. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 1 is characterized in that: The fixing device (7) is composed of a fixing block (701), a sealing ring (702) and a screw (703). The sealing ring (702) is fixedly connected to the middle of the fixing block (701), and the screws (703) are threadedly connected to the upper and lower ends of the fixing block (701).

6. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 4, characterized in that: The connecting block (302) is snap-connected with the upper and lower ends of the fixing block (701).

7. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 3 is characterized by: The hydraulic piston rod (5) is slidably connected to the inner side of the sealing ring (702).

8. The large-diameter hydraulic cylinder that is easy to assemble and disassemble according to claim 4, characterized in that: The connecting block (302) is fixedly connected to the fixing block (701) via screws (703).

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