Hydraulic oil cylinder

Abstract

The utility model relates to a hydraulic oil cylinder which comprises a cylinder body, a cylinder seat is arranged at the radial lower end of the cylinder body, the cylinder seat is of an n-shaped structure, the upper end wall of the cylinder seat and the radial lower end of the cylinder body are integrally formed in an extrusion mode, the outer side walls of the two sides of the cylinder seat are flush with the two radial side walls of the cylinder body, and installation holes are formed in the two sides of the cylinder seat. An oil duct long pipe is integrally extruded and formed at the radial upper end part of the cylinder body, and an arch-shaped reinforcing block is integrally extruded and coated between the oil duct long pipe and the radial upper end part of the cylinder body; the side wall of the cylinder base and the side wall of the reinforcing block are each provided with a containing installation hole used for limiting and containing an external hydraulic oil pipe or a communication line, and the containing installation holes are located in the movable end side of a piston rod of the cylinder body. The utility model has the advantages of compact structure, high strength after installation, and capability of limiting and placing an external hydraulic oil pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil cylinders, and in particular relates to a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). 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. The hydraulic cylinder is installed and fixed on the control table by connecting the base with bolts, as shown in the attached Figure 1 , 2 As shown, the cylinder seat of the existing hydraulic oil cylinder is composed of two mounting blocks that are integrally extruded and molded on both sides of the bottom of the cylinder body and are flush with the bottom of the cylinder body to form a triangular structure. Then, the thickness of the connection between the mounting block and the cylinder body is relatively thin, and it is easy to break when the hydraulic oil cylinder works at high intensity, and the structure is also relatively large; in addition, the long oil channel tube just above the cylinder body is integrally extruded and molded with the cylinder body, and the connection part is also relatively thin and lacks strength, and the external hydraulic oil pipe connected to the cylinder body cannot be well limited and placed on the cylinder body at the movable end of the piston rod, which makes the external hydraulic oil pipe appear very messy. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a hydraulic oil cylinder which has a compact structure, good strength after installation and can limit the position of the external hydraulic oil pipe.

[0004] The purpose of the utility model is achieved through the following technical scheme, such a hydraulic cylinder comprises a cylinder body, a cylinder seat is provided at the radial lower end of the cylinder body, the cylinder seat is a gate-shaped structure, the upper end wall of the cylinder seat is integrally extruded with the radial lower end of the cylinder body, the outer side walls on both sides of the cylinder seat are flush with the radial side walls of the cylinder body, and mounting holes are provided on both sides of the cylinder seat; a long oil channel tube is integrally extruded at the radial upper end of the cylinder body, and an arch-shaped reinforcement block is integrally extruded and covered between the long oil channel tube and the radial upper end of the cylinder body; the side walls of the cylinder seat and the side walls of the reinforcement block are provided with mounting holes for limiting the placement of external hydraulic oil pipes or communication lines, and the mounting holes are located on the movable end side of the piston rod of the cylinder body.

[0005] The beneficial effects of the utility model are as follows: compared with the prior art, the cylinder body strength of the hydraulic cylinder is improved by providing a cylinder seat with a gate-shaped structure and providing an arch-shaped reinforcement block on a long oil channel tube; the structure of the entire hydraulic cylinder is more compact by making the outer side walls on both sides of the cylinder seat flush with the radial side walls of the cylinder body; and a mounting hole is provided to limit the position of the external hydraulic oil pipe, so that the external hydraulic oil pipe near the cylinder body is very neat, which is convenient for workers to operate the hydraulic cylinder.

[0006] Preferably, the cylinder seat comprises an upper plate and two side plates, the two side plates and the upper plate are integrally extruded at the radial lower end of the cylinder body, and the thickness of the upper plate is equal to the thickness of the side plates; through the arrangement of the above structure, the strength of the cylinder seat is improved, thereby further improving the strength between the cylinder seat and the cylinder body.

[0007] Preferably, the mounting holes are arranged on the two side plates, and the mounting holes penetrate the upper plate; thus, the hydraulic cylinder is more stable after being installed on the control table.

[0008] Preferably, the mounting hole is located at the rear end of the cylinder body away from the movable end of the piston rod, so that the movement of the piston rod will not be affected by the mounting hole.

[0009] Preferably, a limit groove is provided on the side wall between the cylinder body and the cylinder seat, and the limit groove is arranged along the length direction of the cylinder body, and a shelf installation hole is provided on both outer side walls of the cylinder body above the limit groove; by setting the limit groove, the external hydraulic oil pipe or communication line can be limited in the limit groove, which makes the wiring of the entire hydraulic cylinder more neat and convenient for the operator to control the hydraulic oil pipe or communication line.

[0010] Preferably, a limit groove is provided on the side wall between the reinforcement block and the cylinder body, and the limit groove is arranged along the length direction of the cylinder body; by setting the limit groove, the external hydraulic oil pipe or communication line can be limited in the limit groove, which makes the wiring of the entire hydraulic cylinder more neat and facilitates the operator to control the hydraulic oil pipe or communication line.

[0011] Preferably, a piston rod is installed in the oil channel hole of the cylinder body, a piston is installed at one end of the piston rod and is in contact with the hole wall in the oil channel hole, and the orifice of the oil channel hole at this end is sealed and fixed by a cylinder bottom block; a guide sleeve is installed at the other end of the piston rod and is in contact with the hole wall in the oil channel hole, and the guide sleeve is axially limited and fixed in the oil channel hole by a retaining ring, and the retaining ring is embedded in an embedding groove in the oil channel hole; through the arrangement of the above structure, the structure of the entire hydraulic cylinder is made more compact, and at the same time, the guide sleeve is limited and fixed in the oil channel hole by setting a retaining ring, which facilitates the installation and replacement of the guide sleeve and makes the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main cross-sectional structure of an existing hydraulic cylinder.

[0013] Figure 2 It is a schematic diagram of the side structure of an existing hydraulic cylinder.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the hydraulic oil cylinder of the utility model.

[0015] Figure 4 It is a schematic diagram of the main cross-sectional structure of the hydraulic cylinder of the utility model.

[0016] Figure 5 It is a schematic diagram of the main structure of the hydraulic cylinder of the utility model.

[0017] Figure 6 It is a side structural schematic diagram of the hydraulic oil cylinder of the utility model.

[0018] The numbers in the accompanying drawings are: 1, cylinder body; 2, cylinder seat; 3, mounting hole; 4, oil channel long tube; 5, reinforcement block; 6, shelf mounting hole; 7, limit groove; 11, piston rod; 12, oil channel hole; 13, piston; 14, cylinder bottom block; 15, guide sleeve; 16, retaining ring; 21, upper plate; 22, side plate. DETAILED DESCRIPTION

[0019] The following is a detailed introduction to the utility model in conjunction with the accompanying drawings: Figures 3 to 6 As shown, the utility model includes a cylinder body 1, a cylinder seat 2 is provided at the radial lower end of the cylinder body 1, the cylinder seat 2 is a gate-shaped structure, the upper end wall of the cylinder seat 2 and the radial lower end of the cylinder body 1 are extruded integrally, the outer side walls on both sides of the cylinder seat 2 are flush with the radial side walls of the cylinder body 1, and mounting holes 3 are provided on both sides of the cylinder seat 2; a long oil channel tube 4 is extruded integrally at the radial upper end of the cylinder body 1, and an arch-shaped reinforcement block 5 is extruded and covered integrally between the long oil channel tube 4 and the radial upper end of the cylinder body 1; the side walls of the cylinder seat 2 and the side walls of the reinforcement block 5 are provided with a placement installation hole 6 for limiting the placement of an external hydraulic oil pipe or a communication line, and the placement installation hole 6 is located on the movable end side of the piston rod 11 of the cylinder body 1; the cylinder body 1, the cylinder seat 2, the long oil channel tube 4 and the reinforcement block 5 of the hydraulic oil cylinder are all extruded integrally of aluminum alloy material. By setting the cylinder seat 2 of the gate-shaped structure, when the hydraulic cylinder is installed on the outdoor control table, when it rains, the water can be drained in time through the bottom of the cylinder seat 2, so that the bottom of the hydraulic cylinder can be prevented from being soaked by rainwater.

[0020] The cylinder base 2 includes an upper plate 21 and two side plates 22. The two side plates 22 and the upper plate 21 are integrally extruded at the radial lower end of the cylinder body 2, and the thickness of the upper plate 21 is equal to that of the side plates 22. The mounting holes 3 are provided on the two side plates 22, and the mounting holes 3 penetrate the upper plate 21. The mounting holes 3 are located at the rear end of the cylinder body 1 away from the movable end of the piston rod 11. After placing the entire hydraulic cylinder on the control table, the two sides of the control table are butted against the side plates of the cylinder base 2, and the screw assembly is passed through the through holes on both sides of the control table and the mounting holes 3 on the cylinder base 2 to tighten and fix it.

[0021] A limiting groove 7 is provided on the side wall between the cylinder body 1 and the cylinder seat 2, and the limiting groove 7 is arranged along the length direction of the cylinder body 1, and a shelf installation hole 6 is provided on both outer side walls of the cylinder body 1 above the limiting groove 7. A limiting groove 7 is provided on the side wall between the reinforcing block 5 and the cylinder body 1, and the limiting groove 7 is arranged along the length direction of the cylinder body 1. The external hydraulic oil pipe or communication line can be routed along the limiting groove 7, and the external hydraulic oil pipe or communication line can be clamped and fixed by installing a shelf clamp in the shelf installation hole 6, so that the external hydraulic oil pipe of the hydraulic cylinder is very neatly wired, and it is also convenient for workers to control or find problems with the hydraulic oil pipe; at the same time, the convexity above the limiting groove 7 between the reinforcing block 5 and the cylinder body 1 is arranged, so that in the process of the hydraulic oil cylinder being extruded and formed by an aluminum alloy material, it is convenient to release stress, so that the strength of the hydraulic oil cylinder is better.

[0022] A piston rod 11 is installed in the oil passage hole 12 of the cylinder body 1, and a piston 13 is installed at one end of the piston rod 11 and contacts the hole wall in the oil passage hole 12, and the orifice of the oil passage hole 12 at this end is sealed and fixed by a cylinder bottom block 14; a guide sleeve 15 is installed at the other end of the piston rod 11 and contacts the hole wall in the oil passage hole 12, and the guide sleeve 15 is axially limited and fixed in the oil passage hole 12 by a retaining ring 16, and the retaining ring 16 is embedded in the embedding groove in the oil passage hole 12.

[0023] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A hydraulic cylinder, comprising a cylinder body (1), characterized in that: A cylinder seat (2) is provided at the radial lower end of the cylinder body (1), and the cylinder seat (2) is a gate-shaped structure. The upper end wall of the cylinder seat (2) is integrally extruded with the radial lower end of the cylinder body (1), and the outer side walls on both sides of the cylinder seat (2) are flush with the radial side walls of the cylinder body (1), and mounting holes (3) are provided on both sides of the cylinder seat (2); a long oil passage tube (4) is integrally extruded at the radial upper end of the cylinder body (1), and an arch-shaped reinforcement block (5) is integrally extruded and coated between the long oil passage tube (4) and the radial upper end of the cylinder body (1); a placement mounting hole (6) for limiting the placement of an external hydraulic oil pipe or a communication line is provided on the side wall of the cylinder seat (2) and the side wall of the reinforcement block (5), and the placement mounting hole (6) is located on the movable end side of the piston rod (11) of the cylinder body (1).

2. The hydraulic cylinder according to claim 1, characterized in that: The cylinder seat (2) comprises an upper plate (21) and two side plates (22); the two side plates (22) and the upper plate (21) are integrally extruded and molded at the radial lower end of the cylinder body (1); and the thickness of the upper plate (21) is equal to that of the side plates (22).

3. The hydraulic cylinder according to claim 2, characterized in that: The mounting holes (3) are arranged on the two side plates (22), and the mounting holes (3) penetrate the upper plate (21).

4. The hydraulic cylinder according to claim 3, characterized in that: The mounting hole (3) is located at the rear end of the cylinder body (1) away from the movable end of the piston rod (11).

5. The hydraulic cylinder according to claim 1, characterized in that: A limiting groove (7) is provided on the side wall between the cylinder body (1) and the cylinder seat (2), the limiting groove (7) is arranged along the length direction of the cylinder body (1), and a shelf installation hole (6) is provided on both outer side walls of the cylinder body (1) above the limiting groove (7).

6. The hydraulic cylinder according to claim 1, characterized in that: A limiting groove (7) is provided on the side wall between the reinforcing block (5) and the cylinder body (1), and the limiting groove (7) is arranged along the length direction of the cylinder body (1).

7. The hydraulic cylinder according to claim 1, characterized in that: A piston rod (11) is installed in the oil passage hole (12) of the cylinder body (1); a piston (13) is installed at one end of the piston rod (11) and contacts the hole wall in the oil passage hole (12); the hole opening of the oil passage hole (12) at this end is sealed and fixed by a cylinder bottom block (14); a guide sleeve (15) is installed at the other end of the piston rod (11) and contacts the hole wall in the oil passage hole (12); the guide sleeve (15) is axially limited and fixed in the oil passage hole (12) by a retaining ring (16), and the retaining ring (16) is embedded in an embedding groove in the oil passage hole (12).

Images