Oil cylinder of chain stretching machine

Abstract

The utility model provides an oil cylinder of a chain stretching machine. The oil cylinder comprises an oil cylinder front cover, an oil cylinder rear cover, a cylinder barrel, a bolt and a piston rod. The oil cylinder front cover, the cylinder barrel and the oil cylinder rear cover are connected into a whole through bolts, the piston rod is arranged in the cylinder barrel, and the two ends of the piston rod extend out of the oil cylinder front cover and the oil cylinder rear cover respectively. The piston rod is of a hollow structure so that the chain can penetrate through the center of the piston rod. The utility model relates to the field of chain stretching. The chain stretching device is simple in structure, high in rigidity, capable of reducing energy consumption, stable in chain size and capable of improving efficiency, reducing cost and reducing labor force.

Description

Technical Field

[0001] This utility model relates to the field of chain stretching, and in particular to a hydraulic cylinder for a chain stretching machine. Background Technology

[0002] In the chain production process, the welded chain undergoes primary and secondary stretching. The existing stretching machine has two hydraulic cylinders, which results in slow speed, high maintenance costs, misaligned thrust, and inconvenience for personnel maintenance. Utility Model Content

[0003] In view of this, the present invention aims to propose a chain stretching machine cylinder to solve the problems of slow speed, high maintenance cost, misalignment of thrust, and inconvenience of personnel maintenance in existing stretching machines.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A chain stretching machine cylinder includes a cylinder front cover, a cylinder rear cover, a cylinder barrel, bolts, and a piston rod. The cylinder front cover, the cylinder barrel, and the cylinder rear cover are connected as a whole by the bolts. The piston rod is disposed inside the cylinder barrel, and both ends of the piston rod extend out of the cylinder front cover and the cylinder rear cover, respectively.

[0006] The piston rod has a hollow structure so that the chain can pass through its center.

[0007] Furthermore, the front cover of the hydraulic cylinder and the cylinder barrel, and the cylinder barrel and the rear cover of the hydraulic cylinder are all transition fits; the cylinder barrel and the piston rod are clearance fits.

[0008] Compared with the prior art, this utility model has the following advantages:

[0009] The chain stretching machine cylinder of this utility model features a hollow piston rod that allows the chain to pass through, improving stretching efficiency and automating and facilitating the chain stretching process. This effectively solves the problem of slow speed in existing stretching machine cylinders. The cylinder's front cover, cylinder barrel, and rear cover are bolted together to facilitate assembly and disassembly, making maintenance and component replacement easier, reducing maintenance costs, and minimizing inconvenience for personnel. Attached Figure Description

[0010] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0011] Figure 1 This is a schematic diagram of the overall structure of the chain stretching machine cylinder according to an embodiment of the present utility model;

[0012] Figure 2 As described in the embodiments of this utility model Figure 1 Cross-sectional view;

[0013] Explanation of reference numerals in the attached figures:

[0014] 1. Front cover of the hydraulic cylinder; 2. Rear cover of the hydraulic cylinder; 3. Cylinder barrel; 4. Bolts; 5. Piston rod. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] This embodiment relates to a chain stretching machine cylinder, which has a simple structure, high rigidity, reduced energy consumption, stable chain dimensions, improved efficiency, reduced costs, and reduced labor.

[0019] Based on the above design concept, an exemplary structure of the chain stretching machine cylinder in this embodiment is as follows: Figure 1 and Figure 2 As shown, it mainly includes a front cover 1, a rear cover 2, a cylinder 3, bolts 4, and a piston rod 5. The front cover 1, cylinder 3, and rear cover 2 are connected as one unit by bolts 4. The piston rod 5 is located inside the cylinder 3, and both ends of the piston rod 5 extend out of the front cover 1 and the rear cover 2 of the cylinder, respectively. The piston rod 5 has a hollow structure so that the chain can pass through its center.

[0020] The piston rod 5, with its hollow structure, allows the chain to pass through, improving stretching efficiency and enabling automation and continuity of the chain stretching process. This effectively solves the problem of slow cylinder speed in existing stretching machines. The cylinder front cover 1, cylinder barrel 3, and cylinder rear cover 2 are connected as a single unit by bolts 4, facilitating cylinder assembly and disassembly, simplifying maintenance and component replacement, reducing maintenance costs, and minimizing inconvenience for personnel. Furthermore, the piston rod 5 extends from both ends of the cylinder front cover 1 and rear cover, ensuring stable extension and retraction, guaranteeing smooth chain stretching, improving chain dimensional stability and consistency, and thus ensuring product quality.

[0021] The front cover 1 of the hydraulic cylinder and the cylinder barrel 3, and the cylinder barrel 3 and the rear cover 2 of the hydraulic cylinder are all transition fits; the cylinder barrel 3 and the piston rod 5 are clearance fits. By using the connection methods of transition fits and clearance fits, the overall rigidity of the hydraulic cylinder can be guaranteed, the stability and reliability during tension can be improved, and the energy loss of the hydraulic cylinder during operation can be reduced, thus reducing energy consumption.

[0022] When using the chain stretching machine cylinder of this embodiment, it should be fixed on the stretching machine to carry out the stretching process. Because the long chain stretching machine cylinder has a fast speed, is easy to operate, increases efficiency, reduces labor, reduces energy consumption, and ensures stable chain size, it solves the problems of slow speed, high maintenance cost, misaligned thrust, and inconvenient maintenance of existing stretching machines.

[0023] The hydraulic cylinder of the long chain stretching machine using the above implementation scheme effectively realizes the long chain stretching process and solves the problems of slow speed and inconvenient operation of existing stretching machines.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chain stretching machine cylinder, comprising a front cover (1), a rear cover (2), a cylinder barrel (3), bolts (4), and a piston rod (5), characterized in that: The cylinder front cover (1), the cylinder barrel (3) and the cylinder rear cover (2) are connected as a whole by the bolts (4). The piston rod (5) is located inside the cylinder barrel (3), and the two ends of the piston rod (5) extend out of the cylinder front cover (1) and the cylinder rear cover (2) respectively. The piston rod (5) has a hollow structure so that the chain can pass through its center.

2. The chain stretching machine cylinder according to claim 1, characterized in that: The front cover (1) of the cylinder and the cylinder barrel (3), and the cylinder barrel (3) and the rear cover (2) of the cylinder are all transition fits; the cylinder barrel (3) and the piston rod (5) are clearance fits.

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