Needle valve type oil supplementing device

Abstract

The utility model discloses a needle valve type oil supplementing device in the field of lubricating equipment. The needle valve type oil supplementing device comprises a cup body, the lower portion of the cup body is communicated with an oil guiding pipe, a sealing cover is arranged on the cup body, the sealing cover is connected with an adjusting piece used for adjusting the flow of a drainage pipe, and the bottom end of the adjusting piece faces the oil guiding pipe.

Description

Technical Field

[0001] This utility model relates to the field of lubrication equipment, and in particular to a needle valve type oil replenishment device. Background Technology

[0002] In industrial production, equipment lubrication is a crucial factor in ensuring normal operation and extending service life. Taking the drive bearing of a chain grate furnace as an example, the traditional lubrication method uses an oil gun to inject oil, which is led to the shaft head through the oil channel hole of the bearing housing copper bushing for lubrication and maintenance. However, this method has many drawbacks: Firstly, due to the small gaps and high surface temperatures of the lubrication points, the amount of oil drawn in by the oil gun is small. As the amount of lubricating oil in the bearing gradually decreases and a good oil film cannot be formed, oil injection is required again to ensure normal lubrication of the bearing. This results in a short service life after oiling, and the amount of lubricating oil is insufficient to meet the normal needs of the equipment. Secondly, frequent manual oiling not only consumes a lot of manpower, but is also prone to affecting the lubrication effect due to improper operation, thereby accelerating equipment wear.

[0003] In the development of lubrication technology, a comparison of the lubrication characteristics of greases and oils revealed that oil lubrication can fill the entire lubrication chamber, resulting in better lubrication performance. While some existing oil replenishment devices exist, they are insufficient for applications with limited space, inconvenient oil addition, or specific precision requirements. For example, some oil replenishment devices are complex in structure, making installation and maintenance difficult; others cannot precisely control the amount of oil replenished according to the needs of different lubrication points, leading to oil waste or insufficient lubrication. Utility Model Content

[0004] The present invention aims to provide a needle valve type oil replenishment device to solve the problems of difficulty in refueling, insufficient lubrication, and high cost in existing lubrication methods.

[0005] One type of needle valve oil replenishment device in this solution includes a cup body, an oil inlet pipe connected to the bottom of the cup body, a sealing cap on the cup body, and an adjusting component for adjusting the flow rate of the inlet pipe connected to the sealing cap, with the bottom end of the adjusting component facing the oil inlet pipe.

[0006] The working principle and beneficial effects of this solution are as follows: When lubrication points need replenishment, the operator first adjusts the regulating component to control the flow rate of the drain pipe according to the actual lubrication requirements of the lubrication points. This changes the distance between the regulating component and the drain pipe opening. When the distance increases, the flow channel for oil from the cup through the drain pipe widens, and under the influence of gravity, the amount of oil flowing out per unit time increases. Conversely, if the distance between the regulating component and the drain pipe opening is reduced, the flow channel narrows, and the amount of oil flowing out per unit time decreases. The entire replenishment process relies solely on the oil's own gravity, requiring no additional power, achieving automatic replenishment and precisely adapting to the lubrication needs of the lubrication points at different times.

[0007] This device features a simple and lightweight structure, requiring minimal initial investment and low daily maintenance costs. It significantly improves work efficiency; previously, frequent manual lubrication was time-consuming, but this device automatically replenishes oil, greatly reducing manual intervention and labor intensity. Therefore, it is reliable and provides excellent lubrication. It has strong application value for lubrication points requiring frequent lubrication, short lubrication cycles, and external power assistance such as electric or pneumatic lubrication.

[0008] Furthermore, the adjusting component includes an adjusting needle and an adjusting nut, which are threadedly connected. The adjusting needle passes through the sealing cover and is vertically slidably connected to it. In actual operation, the operator only needs to apply force to the adjusting needle to move it vertically to the desired position, and then rotate the adjusting nut. As the adjusting nut rotates, it will slowly rise or fall along the threads of the adjusting needle until it is securely fixed in that position. At this point, the adjusting needle is precisely suspended on the sealing cover, achieving flexible adjustment and reliable positioning of the adjusting needle.

[0009] Furthermore, the lower end of the adjusting needle is conical. In practical applications, as the adjusting needle moves up and down, its relative position to the oil inlet pipe constantly changes. Due to the special conical shape, the size of the oil inlet pipe channel is also controlled as the position of the adjusting needle changes. This allows the operator to control the oil flow rate of the oil inlet pipe more precisely and efficiently, ensuring that the oil replenishment device can accurately and stably adjust the oil supply according to the actual needs of the lubrication points, greatly improving the controllability and accuracy of the oil replenishment process.

[0010] Furthermore, the adjusting needle has an annular groove near its conical position. When the adjusting needle completely closes the oil inlet pipe, both the conical and near-conical positions of the needle are within the oil inlet pipe. If the adjusting needle needs to be moved upwards to initiate the oil replenishment process, the groove will contact the lubricating oil before the conical position. Therefore, some lubricating oil will enter the groove first. Under the pressure of the lubricating oil, without this groove, a large amount of lubricating oil might suddenly gush out from the oil inlet pipe, making it difficult to accurately control the oil supply. The groove acts as a buffer, effectively slowing down the flow rate of the lubricating oil and preventing a large amount of lubricating oil from flowing out of the oil inlet pipe rapidly due to a sudden release of pressure, thus ensuring the stability of the oil replenishment process and the precise controllability of the oil supply.

[0011] Furthermore, the cup body is provided with an oil filling hole, and a hole cover is rotatably connected to the upper surface of the cup body. Rotating the hole cover opens the oil filling hole, allowing oil to be added; closing the hole cover prevents dust and other contaminants from entering the cup body.

[0012] Furthermore, the cup body is equipped with a filter cylinder, the bottom of which is connected to the oil inlet pipe. An adjusting needle passes through the filter cylinder and is vertically slidably connected to it. Before the oil in the cup body passes through the oil inlet pipe, large particles are filtered out by the filter cylinder. Then, as the oil flows into the oil inlet pipe, the filter cylinder filters the lubricating oil.

[0013] Furthermore, the oil inlet pipe is fitted with a protective tube, through which an observation hole is passed. The oil inlet pipe is transparent. The observation hole allows observation of whether there is any blockage in the oil inside the oil inlet pipe.

[0014] Furthermore, a spring is provided around the adjusting needle sleeve, with one end of the spring abutting against a sealing cap, and the other end abutting against the top of the filter cartridge. The spring facilitates holding the filter cartridge in place and prevents it from moving. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a needle valve type oil replenishment device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of Example 2;

[0017] Figure 3 This is a schematic diagram of the structure of Example 3;

[0018] Figure 4 This is a schematic diagram of the structure of Example 4. Detailed Implementation

[0019] The following detailed explanation illustrates the specific implementation methods:

[0020] The reference numerals in the accompanying drawings of the instruction manual include: cup body 1, oil inlet pipe 2, oil adjusting needle 3, adjusting nut 4, sealing cap 5, external thread 6, groove 7, oil filling hole 8, hole cover 81, protective tube 9, observation hole 91, filter cylinder 10, and spring 11.

[0021] Example 1

[0022] The basics are as follows: Figure 1 As shown: A needle valve type oil replenishment device includes a cup body 1, with an oil inlet pipe 2 connected to the bottom of the cup body 1. A sealing cap 5 is provided on the cup body 1. The adjusting components include an adjusting needle 3 and an adjusting nut 4, which are threadedly connected. The adjusting needle 3 passes through the sealing cap 5 and is vertically slidably connected to the sealing cap 5. The bottom end of the adjusting needle 3 is conical, and the conical shape of the adjusting needle 3 is close to the oil inlet pipe 2. The bottom of the oil inlet pipe 2 is provided with an external thread 6. The entire oil replenishment device is fixed to the bearing seat through the external thread 6, so that the shaft head can be lubricated and maintained.

[0023] Example 2

[0024] like Figure 2As shown, the difference from Embodiment 1 is that the adjusting needle 3 has an annular groove 7 near the conical position. When the adjusting needle 3 completely closes the oil inlet pipe 2, both the conical and near-conical positions of the adjusting needle are placed inside the oil inlet pipe 2. If the adjusting needle 3 needs to be moved upward to start the oil replenishment process, the groove 7 will contact the lubricating oil before the conical position. Therefore, some lubricating oil will enter the groove 7 first. Under the pressure of the lubricating oil, without the groove 7, the lubricating oil is very likely to suddenly gush out a large amount from the oil inlet pipe 2, making it difficult to accurately control the oil supply. The presence of the groove 7 acts as a buffer, effectively slowing down the flow rate of the lubricating oil and preventing a large amount of lubricating oil from flowing out of the oil inlet pipe 2 rapidly due to the instantaneous release of pressure, thereby ensuring the stability of the oil replenishment process and the accurate controllability of the oil supply.

[0025] Example 3

[0026] like Figure 3 As shown, the difference from Embodiment 1 is that: the cup body 1 is provided with an oil injection hole 8, the upper surface of the cup body 1 is rotatably connected with a hole cover 81, the inner bottom of the cup body 1 is fitted with a filter cylinder 10, the bottom of the filter cylinder 10 is connected to the oil inlet pipe 2, the adjusting oil needle 3 passes through the filter cylinder 10 and is vertically slidably connected to the filter cylinder 10, the oil inlet pipe 2 is covered with a protective tube 9, the protective tube 9 has an observation hole 91, and the oil inlet pipe 2 is a transparent tube.

[0027] When lubrication needs to be replenished, the operator first rotates the cap 81 to open the oil filling hole 8 and adds lubricating oil to the cup body 1. Before passing through the oil inlet pipe 2, the oil in the cup body 1 is filtered by the filter cartridge 10 to remove large particles. The filter cartridge 10 filters the lubricating oil as it flows into the oil inlet pipe 2. The flow rate of the oil inlet pipe is controlled by adjusting the regulating element according to the actual amount of lubricating oil required by the lubrication point. The distance between the regulating element and the opening of the oil inlet pipe 2 will change. The operator applies force to the adjusting needle 3 to move it vertically to the desired position. When the adjusting needle 3 moves upward, the distance between the adjusting needle 3 and the oil inlet pipe 2 increases, and the channel for oil to flow out of the cup body 1 through the oil inlet pipe 2 becomes larger. Under the action of the oil's own gravity, the amount of oil flowing out per unit time increases. Conversely, if the distance between the adjusting needle 3 and the opening of the oil inlet pipe 2 is reduced, the outflow channel becomes smaller, and the amount of oil flowing out per unit time decreases. Then rotate the adjusting nut 4. As the adjusting nut 4 rotates, it will slowly rise or fall along the thread of the adjusting needle 3 until the adjusting needle 3 is firmly fixed in this position. At this time, the adjusting needle 3 is precisely suspended on the sealing cover 5, realizing flexible adjustment and reliable positioning of the adjusting needle 3. The oil in the oil inlet pipe 2 can be observed through the observation hole 91 to see if there is any blockage.

[0028] Example 4

[0029] like Figure 4As shown, the difference from Embodiment 3 is that: a spring 11 is provided on the outer sleeve of the adjusting needle 3, one end of the spring 11 is held against the sealing cap 5, and the other end of the spring 11 is held against the top of the filter cylinder 10. The spring 11 is provided to hold the filter cylinder 10 in place and prevent the filter cylinder 10 from moving.

[0030] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A needle valve type oil replenishment device, characterized in that: It includes a cup body, with an oil inlet pipe connected to the bottom of the cup body. A sealing cap is provided on the cup body, and the sealing cap is connected to an adjustment device for adjusting the flow rate of the inlet pipe. The bottom end of the adjustment device faces the oil inlet pipe.

2. The needle valve type oil replenishment device according to claim 1, characterized in that: The adjusting component includes an adjusting needle and an adjusting nut, which are threadedly connected. The adjusting needle passes through the sealing cover and is vertically slidably connected to the sealing cover.

3. The needle valve type oil replenishment device according to claim 2, characterized in that: The lower end of the adjusting needle is conical.

4. The needle valve type oil replenishment device according to claim 3, characterized in that: The adjusting needle has an annular groove near the conical position.

5. A needle valve type oil replenishment device according to claim 4, characterized in that: The cup body is provided with an oil filling hole, and a hole cover is rotatably connected to the upper surface of the cup body.

6. The needle valve type oil replenishment device according to claim 5, characterized in that: The cup body is equipped with a filter cylinder, the bottom of which is connected to the oil inlet pipe, and the oil adjustment needle passes through the filter cylinder and is vertically slidably connected to the filter cylinder.

7. A needle valve type oil replenishment device according to claim 6, characterized in that: The oil inlet pipe is fitted with a protective tube, and an observation hole is passed through the protective tube. The oil inlet pipe is a transparent tube.

8. The needle valve type oil replenishment device according to claim 7, characterized in that: The regulating needle is fitted with a spring, one end of which is held in place by a sealing cap, and the other end of which is held in place by the top of the filter cartridge.

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