Large-diameter long-stroke oil cylinder

Abstract

A large-diameter long-stroke oil cylinder comprises a shell, an assembly center is arranged in the shell, an assembly cavity is formed in the assembly center, a piston rod is arranged in the assembly cavity, and a connector is arranged on the piston rod. The internal structure of the oil cylinder is prevented from being collided by the piston rod, meanwhile, the bottom disc is also arranged in the oil cylinder, so that the piston cannot collide with the bottom of the oil cylinder during operation, the requirement for safe operation of the oil cylinder is met, the square support is arranged outside the oil cylinder, the oil cylinder can be conveniently transferred, the oil cylinder cannot shake during transferring, and the service life of the oil cylinder is prolonged. And mutual collision between the oil cylinders is avoided, so that the safety of the oil cylinders is not influenced.

Description

Technical Field

[0001] The utility model relates to an oil cylinder, in particular to an oil cylinder with a large diameter and a long stroke. Background Art

[0002] A hydraulic cylinder, also known as an oil cylinder, is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. When classifying the oil cylinder, long-stroke cylinders and short-stroke cylinders can be distinguished according to the length. Different types of oil cylinders are used in different working environments.

[0003] In the prior art: CN201820892499.5 Small long-stroke oil cylinder. The utility model discloses a small long-stroke oil cylinder, comprising cylinder covers on left and right sides and a cylinder barrel arranged between the cylinder bottoms, characterized in that the cylinder cover comprises a bottom cover and a cylinder bottom which are connected, the bottom cover and the cylinder bottom are connected by a connecting piece, the cylinder barrel is arranged on the cylinder bottom, the inner side of the cylinder bottom is provided with a positioning step, and a sensor is positioned and installed on the positioning step.

[0004] Although the small long-stroke cylinder in the prior art can optimize the structure, facilitate the disassembly and assembly of the cylinder, facilitate the installation of sensors, and improve assembly efficiency, the long-stroke cylinder is easy to slide during factory transportation due to its long length, so it is easy to be damaged during transportation, affecting the use effect of the cylinder. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a large-diameter and long-stroke oil cylinder.

[0006] The utility model is implemented by the following technical scheme: a large-diameter long-stroke oil cylinder, comprising an outer shell, an assembly center is arranged inside the outer shell, an assembly cavity is arranged in the assembly center, a piston rod is arranged inside the assembly cavity, a connecting head is arranged on the piston rod, an anti-collision component is arranged on one side of the piston rod, the anti-collision component is an anti-collision head, a bottom disc is arranged at the bottom of the assembly center, an external assembly component is arranged on the outer shell, the external assembly component is an external assembly bracket, a locking screw is arranged on the external assembly bracket, and a protective pad is arranged between the external assembly bracket and the outer shell.

[0007] The external assembly bracket is a square bracket, a threaded hole is arranged on the external assembly bracket, and a locking screw is installed in the threaded hole.

[0008] The square brackets are symmetrically distributed on the outer shell, and hanging components are arranged between the square brackets, and the hanging components are hanging frames.

[0009] The hoisting frame is provided with a hoisting circular hole, a movable connecting rod is provided between the hoisting frame and the square bracket, and a clamping plate is provided on the movable connecting rod.

[0010] The clamping plate is provided with a clamping groove, the clamping plate is clamped into the square bracket, and a threaded rod for locking is provided between the clamping plate and the square bracket.

[0011] Compared with the prior art, the utility model can utilize the anti-collision component inside the piston rod when in use to prevent the piston rod from hitting the internal structure of the oil cylinder. At the same time, a bottom disc is also provided inside the oil cylinder, which can further prevent the piston from hitting the bottom of the oil cylinder during operation, thereby meeting the needs of safe operation of the oil cylinder. A square bracket is provided outside the oil cylinder to facilitate the transportation of the oil cylinder. The oil cylinder will not shake during transportation, thereby avoiding collision between the oil cylinders and affecting the safety of the oil cylinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the utility model;

[0014] Figure 3 It is a three-dimensional diagram of the utility model;

[0015] Figure 4 It is a cross-sectional view of the utility model;

[0016] Figure 5 It is a three-dimensional diagram of the utility model;

[0017] In the figure: 1 is the outer shell, 2 is the assembly cavity, 3 is the piston rod, 4 is the connecting head, 5 is the anti-collision head, 6 is the bottom disc, 7 is the external assembly bracket, 8 is the locking screw, 9 is the lifting frame, and 10 is the clamping plate. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0019] A large-diameter long-stroke oil cylinder comprises an outer shell 1, an assembly center is arranged inside the outer shell 1, an assembly cavity 2 is arranged inside the assembly center, a piston rod 3 is arranged inside the assembly cavity 2, a connecting head 4 is arranged on the piston rod 3, an anti-collision component is arranged on one side of the piston rod 3, the anti-collision component is an anti-collision head 5, a bottom disc 6 is arranged at the bottom of the assembly center, an external assembly component is arranged on the outer shell 1, the external assembly component is an external assembly bracket 7, a locking screw 8 is arranged on the external assembly bracket 7, and a protective pad is arranged between the external assembly bracket 7 and the outer shell 1.

[0020] When the oil cylinder needs to be operated, the piston rod 3 can be used for reciprocating operation, which can meet the needs of the oil cylinder operation. However, the oil cylinder is easy to be damaged during transportation, so an external assembly bracket needs to be provided outside the oil cylinder during transportation. The external assembly bracket 7 adopts a square bracket, and a threaded hole is provided on the external assembly bracket. A locking screw 8 is installed in the threaded hole. The external assembly bracket 7 can be used for good external support. When supporting, collisions between oil cylinders can be avoided, making the transportation of oil cylinders safer.

[0021] The square brackets are symmetrically distributed on the outer shell 1, and lifting components are arranged between the square brackets. The lifting components are lifting frames 9. The lifting frames 9 can be used to facilitate the operation of the oil cylinder when the lifting equipment is running. It is more convenient to lift the oil cylinder without using other cables to bind the oil cylinder for lifting, making the lifting safer and more efficient. Lifting circular holes are arranged on the lifting frame 9, and a movable connecting rod is arranged between the lifting frame and the square bracket. A clamping plate 10 is arranged on the movable connecting rod, and a clamping groove is arranged on the clamping plate 10. The clamping plate 10 is clamped into the square bracket, and a threaded rod for locking is arranged between the clamping plate 10 and the square bracket.

[0022] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A large-diameter long-stroke oil cylinder, comprising a shell, an assembly center is arranged inside the shell, an assembly cavity is arranged inside the assembly center, a piston rod is arranged inside the assembly cavity, a connecting head is arranged on the piston rod, an anti-collision component is arranged on one side of the piston rod, the anti-collision component is an anti-collision head, and a bottom disc is arranged at the bottom of the assembly center, characterized in that: The outer shell is provided with an external assembly component, which is an external assembly bracket. A locking screw is provided on the external assembly bracket, and a protective pad is provided between the external assembly bracket and the outer shell.

2. A large-diameter long-stroke oil cylinder according to claim 1, characterized in that: The external assembly bracket is a square bracket, a threaded hole is arranged on the external assembly bracket, and a locking screw is installed in the threaded hole.

3. A large-diameter long-stroke oil cylinder according to claim 2, characterized in that: The square brackets are symmetrically distributed on the outer shell, and hanging components are arranged between the square brackets, and the hanging components are hanging frames.

4. A large-diameter long-stroke oil cylinder according to claim 3, characterized in that: The hoisting frame is provided with a hoisting circular hole, a movable connecting rod is provided between the hoisting frame and the square bracket, and a clamping plate is provided on the movable connecting rod.

5. The large-diameter long-stroke oil cylinder according to claim 4, characterized in that: The clamping plate is provided with a clamping groove, the clamping plate is clamped into the square bracket, and a threaded rod for locking is provided between the clamping plate and the square bracket.

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