Lubricating device for hydraulic oil cylinder production

Abstract

The utility model discloses a lubricating device for hydraulic oil cylinder production, relates to the field of hydraulic oil cylinder production, and aims to solve the problems that in the prior art, residual metal filings on the inner wall of a cylinder body cannot be completely removed in the mode that lubricating oil is sprayed into the cylinder body only through a nozzle; and the inner wall of the cylinder body is damaged by residual metal chips during subsequent use of the cylinder body. A pressurizing oil pump is fixedly connected to the lower end face of the circular fixing box, a limiting pipe is fixedly arranged in the middle of the upper end face of the circular fixing box, a rotating pipe is rotatably connected to the upper end of the limiting pipe, a plurality of first spray heads are fixedly connected to the end faces of the two sides of the rotating pipe, and second spray heads are fixedly connected to the upper end of the rotating pipe. The driving motor is additionally arranged to drive the rotating pipe to rotate, and the multiple first spray heads and the multiple second spray heads are matched to spray lubricating oil, so that the inner wall of the hydraulic oil cylinder is flushed while being lubricated, and impurities such as metal filings on the inner wall can be removed easily.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder manufacturing, specifically a lubrication device for hydraulic cylinder manufacturing. Background Technology

[0002] Hydraulic cylinders are the core actuators in hydraulic systems, converting hydraulic energy into mechanical energy. They mainly consist of a cylinder barrel and cylinder head, piston and piston rod, and sealing devices. Some hydraulic cylinders also include buffer and venting devices. The working principle of a hydraulic cylinder is to use hydraulic fluid as the working medium, transmitting motion through changes in the sealed volume and power through the pressure within the fluid. When a hydraulic pump supplies hydraulic fluid to the cylinder, the fluid pressure drives the piston in a linear reciprocating or oscillating motion, thereby driving the working mechanism to perform various mechanical actions. After production, hydraulic cylinders require a lubrication system to lubricate their inner walls.

[0003] For example, authorization announcement number CN215940378U discloses a lubrication device for hydraulic cylinder production in the field of hydraulic cylinder manufacturing technology. The device includes a housing with an oil tank fixedly installed at the bottom of the housing's inner cavity. This invention uses an oil pump to extract lubricating oil from the oil tank and discharges it into a spray nozzle and a delivery pipe. A first clamping assembly clamps and fixes the cylinder body, and a second clamping assembly clamps and fixes the piston. Lubricating oil is then sprayed onto the piston through the spray nozzle and into the cylinder body through the nozzle, thus flushing the piston and the inside of the cylinder body with lubricating oil. This flushes away metal shavings from the cylinder body and piston surface. The flushed lubricating oil then enters the oil tank and is filtered through a first and second filter plate to remove the metal shavings, thereby preventing metal shavings from remaining inside the cylinder body and on the piston surface. This invention is highly worthy of promotion.

[0004] However, the above-mentioned technology, which only sprays lubricating oil into the cylinder through a nozzle, cannot completely remove the metal shavings remaining on the inner wall of the cylinder. This results in the residual metal shavings damaging the inner wall of the cylinder during subsequent use. Therefore, there is an urgent need in the market to develop a lubrication device for hydraulic cylinder production to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a lubrication device for the production of hydraulic cylinders, so as to solve the problem mentioned in the background art that the existing technology of simply spraying lubricating oil into the cylinder body through a nozzle cannot completely remove the metal shavings remaining on the inner wall of the cylinder body, resulting in damage to the inner wall of the cylinder body caused by the residual metal shavings during subsequent use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lubrication device for hydraulic cylinder production, comprising a lubrication tank, a circular fixed box fixedly disposed at the lower middle part of the lubrication tank, a filter screen fixedly connected between the upper end of the outer end face of the circular fixed box and the inner wall of the lubrication tank, a booster oil pump fixedly connected to the lower end face of the circular fixed box, a delivery pipe fixedly connected to the upper end of the booster oil pump, a limit tube fixedly disposed at the middle of the upper end face of the circular fixed box, a rotating tube rotatably connected to the upper end of the limit tube, a plurality of first nozzles fixedly connected to both end faces of the rotating tube, a second nozzle fixedly connected to the upper end of the rotating tube, and four L-shaped support frames fixedly connected in a ring array to the upper end face of the circular fixed box.

[0007] Preferably, the lower end of the rotating tube extends through the middle of the limiting tube into the interior of the circular fixed box and is fixedly connected with a second conical tooth, and a sealing ring is provided between the inner wall of the limiting tube and the outer wall of the rotating tube.

[0008] Preferably, a drive motor is fixedly installed on one side inside the circular fixed box, and the output shaft of the drive motor is fixedly connected to a first conical tooth, which meshes with the tooth portion of a second conical tooth.

[0009] Preferably, the lower end of the rotating tube extends through the middle of the second conical tooth to the lower end of the circular fixed box, and the upper end of the conveying tube extends into the circular fixed box and is connected to the lower end of the rotating tube through a rotary joint.

[0010] Preferably, the lower end face of the circular fixed box is fixedly connected to the lower end face of the inside of the lubrication barrel by a plurality of rectangular support rods.

[0011] Preferably, a circular ring is fixedly connected to the center of each of the four L-shaped support frames, and the circular ring is fitted onto the outside of the rotating tube.

[0012] Preferably, both ends of the lubrication barrel are fixedly connected to electrically controlled telescopic rods, and the telescopic ends of the two electrically controlled telescopic rods extend through the outer wall of the lubrication barrel into the interior of the lubrication barrel and are fixedly connected only to arc-shaped clamps.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by adding a drive motor to drive the rotating tube to rotate, and cooperating with multiple first nozzles and second nozzles to spray lubricating oil, comprehensive and uniform lubrication of the inner wall of the hydraulic cylinder is achieved, which effectively improves the lubrication efficiency and lubrication quality. At the same time, the rotating nozzles can also flush the inner wall of the hydraulic cylinder during the lubrication process, which helps to remove metal shavings and other impurities on the inner wall and reduces the risk of damage to the cylinder.

[0015] (2) In this utility model, by setting an electrically controlled telescopic rod and an arc-shaped clamp, it is possible to stably clamp hydraulic cylinders of different sizes, ensuring stability and safety during the lubrication process, and improving the applicability and flexibility of the device.

[0016] (3) In this utility model, the lubricating oil that flows back to the lubrication tank is filtered by a filter screen, which effectively removes impurities such as metal shavings from the lubricating oil, ensuring the cleanliness of the lubricating oil and the effect of reuse, reducing production costs, and also conforming to the concept of environmental protection and energy conservation. Attached Figure Description

[0017] Figure 1 This is a front view of a lubrication device for hydraulic cylinder production according to this utility model;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Lubrication tank; 2. Circular fixed box; 201. Rectangular support rod; 202. Drive motor; 203. First conical tooth; 204. Limiting tube; 205. Filter screen; 3. Booster oil pump; 301. Delivery pipe; 302. Rotary joint; 4. Rotary tube; 401. Second conical tooth; 402. First nozzle; 403. Second nozzle; 5. L-shaped support frame; 501. Ring; 6. Electrically controlled telescopic rod; 601. Arc-shaped clamp. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a lubrication device for hydraulic cylinder production, comprising a lubrication tank 1, a circular fixed box 2 fixedly disposed at the lower middle part of the lubrication tank 1, the lower end face of the circular fixed box 2 being fixedly connected to the lower end face of the lubrication tank 1 by a plurality of rectangular support rods 201, a filter screen 205 fixedly connected between the upper end face of the outer side of the circular fixed box 2 and the inner wall of the lubrication tank 1, a booster oil pump 3 fixedly connected to the lower end face of the circular fixed box 2, a delivery pipe 301 fixedly connected to the upper end of the booster oil pump 3, a limit tube 204 fixedly disposed at the middle of the upper end face of the circular fixed box 2, a rotating tube 4 rotatably connected to the upper end of the limit tube 204, and a plurality of first nozzles 402 fixedly connected to both ends of the rotating tube 4. The upper end of the rotating tube 4 is fixedly connected to a second nozzle 403. The lower end of the rotating tube 4 extends through the middle of the limiting tube 204 into the interior of the circular fixed box 2 and is fixedly connected to a second conical tooth 401. A sealing ring is provided between the inner wall of the limiting tube 204 and the outer wall of the rotating tube 4 to seal the space between the inner wall of the limiting tube 204 and the outer wall of the rotating tube 4. A drive motor 202 is fixedly installed on one side inside the circular fixed box 2. The output shaft of the drive motor 202 is fixedly connected to a first conical tooth 203. The first conical tooth 203 meshes with the teeth of the second conical tooth 401. The drive motor 202 drives the rotating tube 4 to rotate, thereby causing the rotating tube 4 to drive multiple first nozzles 402 and one second nozzle 403 to rotate.

[0024] The lower end of the rotating tube 4 extends through the middle of the second conical tooth 401 to the lower end of the circular fixed box 2. The upper end of the conveying tube 301 extends into the circular fixed box 2 and is connected to the lower end of the rotating tube 4 through a rotary joint 302, so that the rotating tube 4 can rotate at the upper end of the conveying tube 301. Lubricating oil is injected into the lower end of the filter screen 205 inside the lubrication tank 1. The lubricating oil inside the lubrication tank 1 is drawn out by the booster oil pump 3, so that the lubrication tank 1 is sent into the rotating tube 4 through the conveying tube 301 and sprayed outward through multiple first nozzles 402 and one second nozzle 403.

[0025] Four L-shaped support frames 5 are fixedly connected in a ring array on the upper end face of the circular fixed box 2. A circular ring 501 is fixedly connected in the middle of the four L-shaped support frames 5. The circular ring 501 is fitted onto the outside of the rotating tube 4. The hydraulic cylinder is placed on the four L-shaped support frames 5, and the rotating tube 4 is extended into the hydraulic cylinder. The rotating tube 4 is driven by the drive motor 202, and the booster oil pump 3 delivers lubricating oil into the rotating tube 4. The lubricating oil is sprayed outward from multiple first nozzles 402 and one second nozzle 403, thereby lubricating the inner wall of the hydraulic cylinder. At the same time, the sprayed lubricating oil washes the inner wall of the hydraulic cylinder under the action of the rotating tube 4, causing metal shavings on the inner wall of the hydraulic cylinder to fall off and fall onto the filter screen 205 with the lubricating oil. The filter screen 205 filters the washed lubricating oil, and the metal shavings are blocked at the upper end of the filter screen 205. The filtered lubricating oil falls back into the lower end of the lubrication tank 1 for reuse.

[0026] Furthermore, electrically controlled telescopic rods 6 are fixedly connected to the upper ends of both sides of the lubrication barrel 1. The telescopic ends of the two electrically controlled telescopic rods 6 extend through the outer wall of the lubrication barrel 1 into the interior of the lubrication barrel 1 and are fixedly connected only to the arc-shaped clamping plates 601. When the hydraulic cylinder is placed on the four L-shaped support frames 5, the two electrically controlled telescopic rods 6 work synchronously to push the two arc-shaped clamping plates 601 to clamp the two sides of the hydraulic cylinder respectively, ensuring that the hydraulic cylinder remains stable during lubrication.

[0027] Working Principle: In use, first place the hydraulic cylinder to be lubricated on four L-shaped support frames 5, ensuring the rotating tube 4 can smoothly extend into the hydraulic cylinder. Then, activate the two electrically controlled telescopic rods 6, causing their telescopic ends to move inward synchronously, pushing the two arc-shaped clamps 601 to tightly clamp the sides of the hydraulic cylinder, ensuring its stability during lubrication. Next, start the booster pump 3 and drive motor 202. The booster pump 3 begins to draw lubricating oil from the lubrication tank 1, which has been preliminarily filtered by the filter screen 205, and delivers it into the rotating tube 4 through the delivery pipe 301. Simultaneously, the drive motor 202 drives the first conical tooth 203 to rotate, which in turn drives the rotating tube 4 to rotate through the meshing second conical tooth 401. After being pressurized inside the rotating tube 4, the lubricating oil is sprayed outward at high speed from multiple first nozzles 402 and one second nozzle 403, forming a uniform lubricating film covering the inner wall of the hydraulic cylinder. Through the continuous rotation of the rotating tube 4, the inner wall of the hydraulic cylinder is thoroughly and evenly lubricated and flushed. During the rinsing process, metal shavings and other impurities on the inner wall of the hydraulic cylinder are washed away by the lubricating oil and fall onto the filter screen 205 along with the lubricating oil. After filtration, the clean lubricating oil falls back into the lower part of the lubrication tank 1 for the next use. The entire lubrication process is efficient and automatic, and can effectively remove metal shavings from the inner wall of the hydraulic cylinder, protecting the cylinder from damage.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lubrication device for hydraulic cylinder production, comprising a lubrication tank (1), characterized in that: A circular fixed box (2) is fixedly installed at the lower middle part of the interior of the lubrication tank (1). A filter screen (205) is fixedly connected between the upper end of the outer side of the circular fixed box (2) and the inner wall of the lubrication tank (1). A booster oil pump (3) is fixedly connected to the lower end of the circular fixed box (2). A delivery pipe (301) is fixedly connected to the upper end of the booster oil pump (3). A limit tube (204) is fixedly installed in the middle of the upper end of the circular fixed box (2). A rotating tube (4) is rotatably connected to the upper end of the limit tube (204). Multiple first nozzles (402) are fixedly connected to both ends of the rotating tube (4). A second nozzle (403) is fixedly connected to the upper end of the rotating tube (4). Four L-shaped support frames (5) are fixedly connected in a ring array to the upper end of the circular fixed box (2).

2. The lubrication device for hydraulic cylinder production according to claim 1, characterized in that: The lower end of the rotating tube (4) extends through the middle of the limiting tube (204) into the interior of the circular fixed box (2) and is fixedly connected with a second conical tooth (401). A sealing ring is provided between the inner wall of the limiting tube (204) and the outer wall of the rotating tube (4).

3. A lubrication device for hydraulic cylinder production according to claim 2, characterized in that: A drive motor (202) is fixedly installed on one side inside the circular fixed box (2). The output shaft of the drive motor (202) is fixedly connected to a first conical tooth (203), and the first conical tooth (203) meshes with the teeth of a second conical tooth (401).

4. A lubrication device for hydraulic cylinder production according to claim 1, characterized in that: The lower end of the rotating tube (4) extends through the middle of the second conical tooth (401) to the lower end of the circular fixed box (2), and the upper end of the conveying tube (301) extends into the circular fixed box (2) and is connected to the lower end of the rotating tube (4) through a rotating joint (302).

5. A lubrication device for hydraulic cylinder production according to claim 1, characterized in that: The lower end face of the circular fixed box (2) is fixedly connected to the lower end face of the inside of the lubrication barrel (1) by multiple rectangular support rods (201).

6. A lubrication device for hydraulic cylinder production according to claim 1, characterized in that: The four L-shaped support frames (5) are all fixedly connected to a ring (501) in the middle, and the ring (501) is fitted into the outside of the rotating tube (4).

7. A lubrication device for hydraulic cylinder production according to claim 1, characterized in that: The upper ends of both sides of the lubrication barrel (1) are fixedly connected to electrically controlled telescopic rods (6). The telescopic ends of the two electrically controlled telescopic rods (6) extend through the outer wall of the lubrication barrel (1) into the interior of the lubrication barrel (1) and are fixedly connected only to arc-shaped clamps (601).

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