Self-cleaning engineering hydraulic oil cylinder

Abstract

The self-cleaning engineering hydraulic oil cylinder comprises a hydraulic oil cylinder body and a piston rod, the piston rod is inserted in the hydraulic oil cylinder body in a sliding mode, a protective cover is fixedly connected to the outer wall of the top of the hydraulic oil cylinder body, and two first electric push rods are fixedly connected to the outer wall of the circumference of the protective cover. One end of the first electric push rod penetrates through the protective cover to be fixedly connected with a first cleaning frame, two second electric push rods are fixedly connected to the circumferential outer wall of the protective cover, one end of each second electric push rod penetrates through the protective cover to be fixedly connected with a second cleaning frame, and brushes are bonded to one side of the first cleaning frame and one side of the second cleaning frame. The first cleaning frame and the second cleaning frame are driven by the first electric push rod and the second electric push rod to move, so that the brush makes contact with the piston rod, the brush makes friction with the piston rod under stretching of the piston rod, and the outer wall of the piston rod is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an engineering hydraulic cylinder capable of self-cleaning. Background Technique

[0002] A hydraulic 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 and is applied in the hydraulic systems of various machines.

[0003] During the use of a hydraulic cylinder, some dust and other impurities will adhere to the piston rod. However, the existing hydraulic cylinders lack a self-cleaning mechanism, resulting in friction between the impurities and the sealing ring, causing wear to the piston rod and the hydraulic cylinder body and reducing the service life of the hydraulic cylinder. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defect that the existing hydraulic cylinders lack a self-cleaning mechanism and cannot clean the impurities on the piston rod in the prior art, and to propose an engineering hydraulic cylinder capable of self-cleaning.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An engineering hydraulic cylinder capable of self-cleaning includes a hydraulic cylinder body and a piston rod. The piston rod is slidably inserted into the hydraulic cylinder body. A protective cover is fixedly connected to the outer wall of the top of the hydraulic cylinder body. Two first electric push rods are fixedly connected to the circumferential outer wall of the protective cover. One end of the first electric push rod passes through the protective cover and is fixedly connected to a first cleaning frame. Two second electric push rods are fixedly connected to the circumferential outer wall of the protective cover. One end of the second electric push rod passes through the protective cover and is fixedly connected to a second cleaning frame. Brushes are bonded to one side of the first cleaning frame and one side of the second cleaning frame.

[0007] Further, a lower mounting ring is fixedly connected to the outer wall of the bottom end of the hydraulic cylinder body.

[0008] Further, an upper mounting ring is fixedly connected to the top end of the piston rod.

[0009] Further, a sealing ring is clamped at the top end of the hydraulic cylinder body, and the sealing ring contacts the outer wall of the piston rod.

[0010] Further, two maintenance covers are rotatably connected to the top of the protective cover.

[0011] Further, a plurality of support columns are fixedly connected to the circumferential outer wall of the protective cover. A clamping block is rotatably sleeved at the top end of the support column, and the clamping block is clamped with the maintenance cover.

[0012] The beneficial effects of the utility model are:

[0013] 1. Driven by the first electric push rod and the second electric push rod, the first cleaning frame and the second cleaning frame move, so that the brush contacts the piston rod. Then, with the telescopic movement of the piston rod, the brush rubs against the piston rod, thereby cleaning the outer wall of the piston rod.

[0014] 2. By rotating the clamping block to separate from the maintenance cover, it is convenient to open the maintenance cover, and then it is convenient to replace the brush to ensure the cleaning effect on the piston rod. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structure schematic diagram of an engineering hydraulic cylinder with self-cleaning function proposed by the present utility model;

[0016] Figure 2 It is a sectional structure schematic diagram of an engineering hydraulic cylinder with self-cleaning function proposed by the present utility model;

[0017] Figure 3 It is a partial sectional structure schematic diagram of the working state of an engineering hydraulic cylinder with self-cleaning function proposed by the present utility model.

[0018] In the figure: 1, hydraulic cylinder body; 2, piston rod; 3, protective cover; 4, first electric push rod; 5, first cleaning frame; 6, brush; 7, second electric push rod; 8, second cleaning frame; 9, lower mounting ring; 10, upper mounting ring; 11, sealing ring; 12, maintenance cover; 13, clamping block. Specific Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Refer to Figures 1-3 , an engineering hydraulic cylinder with self-cleaning function, includes a hydraulic cylinder body 1 and a piston rod 2. The piston rod 2 is slidably inserted in the hydraulic cylinder body 1. The outer wall of the top of the hydraulic cylinder body 1 is fixed with a protective cover 3 by bolts. Two first electric push rods 4 are fixed on the circumferential outer wall of the protective cover 3 by bolts. One end of the first electric push rod 4 passes through the protective cover 3 and is fixed with a first cleaning frame 5 by bolts. Two second electric push rods 7 are fixed on the circumferential outer wall of the protective cover 3 by bolts. One end of the second electric push rod 7 passes through the protective cover 3 and is fixed with a second cleaning frame 8 by bolts. Brushes 6 are bonded to one side of the first cleaning frame 5 and one side of the second cleaning frame 8. Driven by the first electric push rod 4 and the second electric push rod 7, the first cleaning frame 5 and the second cleaning frame 8 move, so that the brush 6 contacts the piston rod 2. Then, with the telescopic movement of the piston rod 2, the brush 6 rubs against the piston rod 2, thereby cleaning the outer wall of the piston rod 2.

[0021] A lower mounting ring 9 is welded to the outer wall of the bottom end of the hydraulic cylinder body 1, an upper mounting ring 10 is welded to the top end of the piston rod 2, a sealing ring 11 is clamped to the top end of the hydraulic cylinder body 1, and the sealing ring 11 is in contact with the outer wall of the piston rod 2. The sealing ring 11 seals between the hydraulic cylinder body 1 and the piston rod 2. Two inspection covers 12 are rotatably connected to the top of the protective cover 3. A plurality of support columns are welded to the circumferential outer wall of the protective cover 3. A clamping block 13 is rotatably sleeved on the top end of the support column, and the clamping block 13 is clamped with the inspection cover 12. Rotating the clamping block 13 separates it from the inspection cover 12, so as to facilitate opening the inspection cover 12 and further facilitate replacing the brush 6.

[0022] Working principle: During cleaning, driven by the first electric push rod 4 and the second electric push rod 7, the first cleaning frame 5 and the second cleaning frame 8 move, so that the brush 6 contacts the piston rod 2, and then under the telescopic movement of the piston rod 2, the brush 6 rubs against the piston rod 2, thereby cleaning the outer wall of the piston rod 2. When maintenance is required, rotating the clamping block 13 separates it from the inspection cover 12, so as to facilitate opening the inspection cover 12 and further facilitate replacing the brush 6.

[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A self-cleaning engineering hydraulic cylinder, comprising a hydraulic cylinder body (1) and a piston rod (2), wherein the piston rod (2) is slidably inserted in the hydraulic cylinder body (1), characterized in that: The top outer wall of the hydraulic cylinder body (1) is fixedly connected to a protective cover (3), the circumferential outer wall of the protective cover (3) is fixedly connected to two first electric push rods (4), one end of the first electric push rod (4) passes through the protective cover (3) and is fixedly connected to a first cleaning frame (5), the circumferential outer wall of the protective cover (3) is fixedly connected to two second electric push rods (7), one end of the second electric push rod (7) passes through the protective cover (3) and is fixedly connected to a second cleaning frame (8), and brushes (6) are bonded to one side of the first cleaning frame (5) and one side of the second cleaning frame (8).

2. A self-cleaning engineering hydraulic cylinder according to claim 1, characterized in that: A lower mounting ring (9) is fixedly connected to the outer wall of the bottom end of the hydraulic cylinder body (1).

3. The self-cleaning engineering hydraulic cylinder according to claim 1, characterized in that: An upper mounting ring (10) is fixedly connected to the top end of the piston rod (2).

4. The self-cleaning engineering hydraulic cylinder according to claim 1, characterized in that: A sealing ring (11) is clamped at the top end of the hydraulic cylinder body (1), and the sealing ring (11) is in contact with the outer wall of the piston rod (2).

5. The self-cleaning engineering hydraulic cylinder according to claim 1, characterized in that: The top of the protective cover (3) is rotatably connected to two inspection covers (12).

6. The self-cleaning engineering hydraulic cylinder according to claim 1, characterized in that: A plurality of support columns are fixedly connected to the circumferential outer wall of the protective cover (3), and a clamping block (13) is rotatably sleeved on the top end of the support column, and the clamping block (13) is clamped with the inspection cover (12).

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