CN216554725U

CN216554725U - High-strength large-arm lifting oil cylinder

Info

Publication number: CN216554725U
Application number: CN202220123136.1U
Authority: CN
Inventors: 王竹林
Original assignee: Qingdao Wintin Hydraulic Machinery Co ltd
Current assignee: Qingdao Wintin Hydraulic Machinery Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-05-17
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a high-strength large-arm lifting oil cylinder which comprises a cylinder body, wherein a piston is arranged in the cylinder body in a sliding manner, the piston is connected with a piston rod, the end part of the piston rod is connected with a rod end lug ring, the two ends of the cylinder body are respectively provided with a cylinder cover and a cylinder bottom, the outer wall of the cylinder bottom is connected with a cylinder bottom lug ring, a sealing piece is arranged at the joint of the cylinder cover and the piston rod, the outer wall of the cylinder body is provided with an oil path block, an oil inlet pipe and an oil return pipe are connected between the oil path block and the cylinder body, an installation groove is arranged on the oil path block, an installation box is fixed in the installation groove, a filter assembly is installed in the installation box, and an end cover is installed on the outer wall of the installation box. Has the advantages that: according to the utility model, the oil path block is provided with the filtering assembly for filtering the hydraulic oil, so that impurities in the hydraulic oil are removed, the impurities are prevented from being adhered to the inner wall of the cylinder body, the piston rod can be ensured to be stretched normally, and the oil cylinder is ensured to work normally.

Description

High-strength large-arm lifting oil cylinder

Technical Field

The utility model relates to the technical field of lifting machinery, in particular to a high-strength large-arm lifting oil cylinder.

Background

The hydraulic oil cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems.

The oil path block is a component of the oil cylinder and is an assembly for integrating the dispersed hydraulic oil paths. The oil circuit block is a simple square block for controlling the hydraulic oil to work, but the conventional oil circuit block does not have a filtering function, and the telescopic function of the oil cylinder is influenced when the hydraulic oil is excessively contaminated, so that the hydraulic oil can not work normally.

In order to solve the problems, a high-strength large-arm lifting oil cylinder is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the background technology and provides a high-strength large-arm lifting oil cylinder.

In order to achieve the purpose, the utility model adopts the following technical scheme: big arm lift cylinder of high strength, including the cylinder body, it is provided with the piston to slide in the cylinder body, piston connection has the piston rod, the end connection of piston rod has the rod end earrings, the both ends of cylinder body are provided with cylinder cap and cylinder bottom respectively, be connected with cylinder bottom earrings on the outer wall of cylinder bottom, the junction of cylinder cap and piston rod is equipped with the sealing member, be equipped with the oil circuit piece on the outer wall of cylinder body, be connected with into oil pipe and return oil pipe between oil circuit piece and the cylinder body, be provided with the mounting groove on the oil circuit piece, the mounting groove internal fixation has the mounting box, install in the mounting box and filter the assembly, the end cover is installed to the outer wall of mounting box, be connected with the hose between mounting box and the oil circuit piece.

In foretell big arm lift cylinder of high strength, be equipped with spacer block and fixed block between the inner wall of filter assembly and mounting box, the cavity has been seted up in the fixed block, it is equipped with the fixture block to slide to insert on the outer wall of fixed block, be fixed with compression spring between the tip of fixture block and the inner wall of cavity, the last lateral wall of fixed block slides and inserts and is equipped with and presses the depression bar, the lower extreme that presses the depression bar is located the cavity and is fixed with trapezoidal piece, be fixed with expanding spring between the lower extreme of trapezoidal piece and the interior diapire of cavity, be fixed with the cylinder that is located the trapezoidal piece left and contacts with trapezoidal piece inclined plane on the outer wall of fixture block.

In the high-strength large-arm lifting oil cylinder, the section width of the trapezoidal block is gradually reduced from top to bottom.

In the high-strength large-arm lifting oil cylinder, the piston rod is made of 42 CrMo.

In the high-strength large-arm lifting oil cylinder, the rod end ear ring and the cylinder bottom ear ring are both manufactured by adopting a forging process.

Compared with the prior art, the high-strength large-arm lifting oil cylinder has the advantages that:

according to the utility model, the filtering assembly is arranged on the oil path block to filter the hydraulic oil, so that impurities in the hydraulic oil are removed, the impurities are prevented from being adhered to the inner wall of the cylinder body, the piston rod can be ensured to be stretched normally, and the oil cylinder is ensured to work normally.

Drawings

FIG. 1 is a schematic structural view of a high-strength large arm lift cylinder according to the present invention;

FIG. 2 is a schematic structural diagram of an oil path block in the high-strength large-arm lift cylinder according to the present invention;

FIG. 3 is a schematic view of the internal structure of the mounting box in the high-strength large-arm lift cylinder according to the present invention;

fig. 4 is a schematic view of the internal structure of the fixing block in the high-strength large-arm lift cylinder according to the present invention.

In the figure: 1 cylinder body, 2 piston rods, 3 pistons, 4 cylinder bottoms, 5 cylinder bottom lug rings, 6 rod end lug rings, 7 cylinder covers, 8 oil path blocks, 9 oil inlet pipes, 10 oil return pipes, 11 mounting boxes, 12 end covers, 13 hoses, 14 compression springs, 15 filter assemblies, 16 spacer blocks, 17 fixing blocks, 18 pressing rods, 19 trapezoidal blocks, 20 cylinders, 21 telescopic springs and 22 clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, the high-strength large arm lift cylinder comprises a cylinder body 1, a piston 3 is slidably disposed in the cylinder body 1, the piston 3 is connected with a piston rod 2, the piston rod 2 is made of 42CrMo, the 42CrMo has good mechanical strength and can improve the strength of the piston rod 2, the end of the piston rod 2 is connected with a rod end ear ring 6, two ends of the cylinder body 1 are respectively provided with a cylinder cover 7 and a cylinder bottom 4, the outer wall of the cylinder bottom 4 is connected with a cylinder bottom ear ring 5, the rod end ear ring 6 and the cylinder bottom ear ring 5 are both made by forging technology, the forging technology can improve the strength of the rod end ear ring 6 and the cylinder bottom ear ring 5, a sealing element is disposed at the joint of the cylinder cover 7 and the piston rod 2, an oil path block 8 is disposed on the outer wall of the cylinder body 1, an oil inlet pipe 9 and an oil return pipe 10 are connected between the oil path block 8 and the cylinder body 1, a mounting groove is disposed on the oil path block 8, and a mounting box 11 is fixed in the mounting groove, install in the mounting box 11 and filter assembly 15, filter assembly 15 and include the filter screen, carry out the filtration of hydraulic oil through filtering whole 15, get rid of the impurity in the hydraulic oil, end cover 12 is installed to the outer wall of mounting box 11, is connected with hose 13 between mounting box 11 and the oil circuit piece 8.

A spacing block 16 and a fixing block 17 are arranged between the filter assembly 15 and the inner wall of the mounting box 11, a cavity is arranged in the fixing block 17, a clamping block 22 is inserted on the outer wall of the fixing block 17 in a sliding manner, a compression spring 14 is fixed between the end part of the clamping block 22 and the inner wall of the cavity, a bayonet matched with the clamping block 22 in size is arranged on the outer wall of the filter assembly 15, the clamping block 22 moves outwards under the action of the elastic force of the compression spring 14 and is clamped in the bayonet, and the fixing of the filter assembly 15 is completed.

The last lateral wall of fixed block 17 slides and inserts and is equipped with press bar 18, press bar 18's lower extreme is located the cavity and is fixed with trapezoidal piece 19, be fixed with expanding spring 21 between the lower extreme of trapezoidal piece 19 and the interior diapire of cavity, be fixed with the cylinder 20 that is located trapezoidal piece 19 left and contacts with trapezoidal piece 19 inclined plane on block 22's the outer wall, trapezoidal piece 19 from top to bottom cross-sectional width reduces gradually, when filtering assembly 15's demolition, down press bar 18, press bar 18 drives trapezoidal piece 19 down to move, trapezoidal piece 19 extrusion cylinder 20 moves toward the left side, drive block 22 through cylinder 20 and move toward the left side, block 22 breaks away from the bayonet socket, can tear out filtering assembly 15 promptly, filter the clearance of impurity on the assembly 15.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. High-strength large-arm lifting oil cylinder, which comprises a cylinder body (1) and is characterized in that a piston (3) is arranged in the cylinder body (1) in a sliding manner, the piston (3) is connected with a piston rod (2), the end part of the piston rod (2) is connected with a rod end ear ring (6), the two ends of the cylinder body (1) are respectively provided with a cylinder cover (7) and a cylinder bottom (4), the outer wall of the cylinder bottom (4) is connected with a cylinder bottom ear ring (5), the joint of the cylinder cover (7) and the piston rod (2) is provided with a sealing element, the outer wall of the cylinder body (1) is provided with an oil path block (8), an oil inlet pipe (9) and an oil return pipe (10) are connected between the oil path block (8) and the cylinder body (1), the oil path block (8) is provided with a mounting groove, a mounting box (11) is fixed in the mounting groove, and a filtering assembly (15) is installed in the mounting box (11), an end cover (12) is installed on the outer wall of the installation box (11), and a hose (13) is connected between the installation box (11) and the oil circuit block (8).

2. The high-strength large-arm lifting oil cylinder as claimed in claim 1, wherein a spacer block (16) and a fixing block (17) are arranged between the filter assembly (15) and the inner wall of the mounting box (11), a cavity is arranged in the fixed block (17), a clamping block (22) is inserted on the outer wall of the fixed block (17) in a sliding way, a compression spring (14) is fixed between the end part of the clamping block (22) and the inner wall of the cavity, a pressing rod (18) is inserted into the upper side wall of the fixing block (17) in a sliding manner, the lower end of the pressing rod (18) is positioned in the cavity and is fixed with a trapezoidal block (19), a telescopic spring (21) is fixed between the lower end of the trapezoidal block (19) and the inner bottom wall of the cavity, and a cylinder (20) which is positioned at the left side of the trapezoidal block (19) and is contacted with the inclined plane of the trapezoidal block (19) is fixed on the outer wall of the clamping block (22).

3. The high strength large arm lift cylinder as set forth in claim 2, wherein said trapezoidal blocks (19) are gradually reduced in cross-sectional width from top to bottom.

4. The high-strength large-arm lifting cylinder as claimed in claim 1, wherein the piston rod (2) is made of 42 CrMo.

5. The high-strength large-arm lifting oil cylinder as recited in claim 1, characterized in that the rod end ear ring (6) and the cylinder bottom ear ring (5) are both made by forging process.