Hydraulic cylinder for lifting structure of background carrier roller of perforating machine

Abstract

A piston rod of the hydraulic cylinder is connected with a swing arm, a hydraulic cylinder cover is fixed outside the hydraulic cylinder, the hydraulic cylinder cover is provided with a through hole, and the piston end of the hydraulic cylinder passes through the through hole. Compared with the prior art, the hydraulic cylinder cover has the advantages that the hydraulic cylinder cover is arranged, if oil leaks from the hydraulic cylinder, hydraulic oil can be blocked in the hydraulic cylinder cover, and accidents are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of perforation machine technology, specifically relating to a hydraulic cylinder for lifting structure of back-end rollers of a perforation machine. Background Technology

[0002] The lifting structure of the back-end roller of the piercing machine includes a hydraulic cylinder 1. The piston rod of the hydraulic cylinder 1 is connected to one end of the swing arm 8, and the other end of the swing arm 8 is sleeved on the outside of the swing arm shaft 3. The swing arm shaft 3 is connected to the swing rod shaft through a coupling. The end of the swing arm shaft 3 is connected to the bearing support 5. Two swing rods 6 are installed on the swing rod shaft in parallel. The outer end of the swing rod 6 is rotatably connected to the rotating shaft 5. The roller 4 is sleeved on the rotating shaft 5. For details, please refer to patent document CN202137187U.

[0003] The technical problem is that the drilling machine operates in a high-temperature environment. If the hydraulic cylinder leaks oil, the hydraulic oil will immediately ignite, leading to an accident. Utility Model Content

[0004] The technical problem this utility model aims to solve is: how to design a hydraulic cylinder for lifting the back roller of a perforating machine to reduce the occurrence of accidents.

[0005] The specific technical solution of this utility model is as follows:

[0006] A hydraulic cylinder for lifting structure of back roller of a perforating machine, wherein the piston rod of the hydraulic cylinder is connected to a swing arm, a hydraulic cylinder cover is fixed outside the hydraulic cylinder, and the hydraulic cylinder cover is provided with a through hole through which the piston end of the hydraulic cylinder passes.

[0007] Compared with the prior art, the technical effect of this utility model is that it is equipped with a hydraulic cylinder cover. If the hydraulic cylinder leaks oil, the hydraulic oil will be blocked inside the hydraulic cylinder cover, thus avoiding accidents. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the utility model in use. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0010] like Figure 1 A hydraulic cylinder for lifting a roller in the backstage of a perforating machine is disclosed. The piston rod of the hydraulic cylinder 1 is connected to one end of a swing arm 7, and the other end of the swing arm 7 is sleeved on the outside of a swing arm shaft 3. The swing arm shaft 3 is connected to a swing rod shaft through a coupling. The end of the swing arm shaft 3 is connected to a bearing support 2. Two swing rods 6 are installed on the swing rod shaft in parallel. The outer end of the swing rod 6 is rotatably connected to a rotating shaft 5. The roller 4 is sleeved on the rotating shaft 5. For details, please refer to patent document CN202137187U.

[0011] The hydraulic cylinder 1 is externally fixed with a hydraulic cylinder cover 11, which has a through hole that passes through the piston end of the hydraulic cylinder 1.

[0012] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder for lifting structure of back-end rollers of a perforating machine, characterized in that: The piston rod of the hydraulic cylinder (1) is connected to the swing arm (7). The hydraulic cylinder (1) is fixed with a hydraulic cylinder cover (11). The hydraulic cylinder cover (11) is provided with a through hole, which passes through the piston end of the hydraulic cylinder (1).

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