Labyrinth seal for a lubrication pump

Abstract

The utility model discloses a kind of anti-side leakage's lubricating pump labyrinth seal device, it includes bottom support, the bottom support top left side is fixed with driving motor, the driving motor output end is connected with gear drive pump by shaft coupling, the gear drive pump top is fixed with oil storage barrel, the oil storage barrel is connected with gear drive pump inside, the oil storage barrel outside both sides are provided with labyrinth seal structure, the labyrinth seal structure includes oil outlet pipe, the oil outlet pipe one end penetrates to oil storage barrel inside, and its other end is fixed with oil flow pipe, the oil outlet pipe and oil flow pipe outside are all fixed with sealing sleeve, the oil flow pipe outer end inboard and gear drive pump inboard are connected by oil inlet pipe, the oil inlet pipe is designed using labyrinth structure, and the oil storage barrel outside is provided with control valve, through labyrinth seal structure, dynamic stirring and multiple sealing design, the efficient leakage of lubricating oil is realized, suitable for high sealing requirement's lubricating system.

Description

Technical Field

[0001] This utility model relates to the field of lubrication pump technology, and in particular to a labyrinth seal device for lubrication pumps that prevents side leakage. Background Technology

[0002] A lubrication pump is a device in mechanical equipment specifically designed for fluid transport and lubrication. Lubrication pumps play a vital role in automobiles, industrial equipment, and other mechanical systems, especially in ensuring good lubrication between various moving parts, preventing wear and overheating, thereby improving the performance of the machinery and extending its service life.

[0003] In the prior art, a grease lubrication pump with patent publication number CN222811552U has a simplified and more compact structure, including a pump base, oil tank, driver, plunger assembly, driven component, and pressure switch. The oil tank, driver, and pressure switch are respectively installed in the pump base. The pump base has an oil pumping channel, an oil outlet channel, and a trigger channel. The oil pumping channel is connected to the oil outlet channel, and the trigger channel is connected to the oil outlet channel. This device can determine whether the oil pumping pressure meets the standard by setting only the driven component and the pressure switch, which simplifies the structure and helps to reduce costs. However, currently, when lubricating a lubrication pump, the liquid oil stored in its oil tank requires high sealing performance to avoid leakage of the liquid oil in the oil tank when it flows into the gear pump, thereby affecting the use effect of the lubricating oil and reducing the lubrication efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a labyrinth seal device for a lubrication pump that prevents side leakage. This device addresses the problem that the liquid oil stored in the oil reservoir of a lubrication pump requires high sealing performance during lubrication, thus preventing leakage when the liquid oil flows into the gear pump, which would affect the lubrication effect and reduce lubrication efficiency.

[0005] To achieve the above objectives, a leak-proof labyrinth seal device for a lubrication pump is provided, comprising a bottom support, a drive motor fixed to the top left side of the bottom support, a gear drive pump connected to the output end of the drive motor via a coupling, an oil storage tank fixed to the top of the gear drive pump, the oil storage tank being connected to the inside of the gear drive pump, labyrinth seal structures provided on both sides of the outside of the oil storage tank, each labyrinth seal structure including an oil outlet pipe, one end of the oil outlet pipe penetrating into the inside of the oil storage tank, and the other end of the oil outlet pipe being fixed to an oil flow pipe, both the oil outlet pipe and the oil flow pipe being fixed to the outside of a sealing sleeve, the inner side of the outer end of the oil flow pipe being connected to the inner side of the gear drive pump via an oil inlet pipe, the oil inlet pipe being designed with a labyrinth structure, and a control valve being provided on the outside of the oil storage tank.

[0006] According to the aforementioned anti-leakage labyrinth sealing device for a lubrication pump, a control motor is fixed at the center of the top of the oil storage tank, a drive rod rotates inside the oil storage tank, the output end of the control motor extends through the inside of the oil storage tank and is fixedly connected to the drive rod via a coupling, and multiple drive sub-rods are fixedly arranged on the outer side of the drive rod.

[0007] According to the aforementioned anti-leakage labyrinth sealing device for a lubrication pump, the oil storage tank has multiple scale lines longitudinally opened on the outer front side.

[0008] According to the aforementioned labyrinth-type sealing device for preventing side leakage of a lubrication pump, an oil injection pipe is fixed at the rear end of the top of the oil storage tank, the lower side of the oil injection pipe extends into the interior of the oil storage tank, and a sealing plug is threadedly connected to the inner side of the top of the oil injection pipe.

[0009] According to the aforementioned labyrinth seal device for preventing side leakage of a lubrication pump, both sealing sleeves are made of rubber.

[0010] According to the aforementioned anti-leakage labyrinth sealing device for a lubrication pump, the oil storage tank is entirely transparent on the outside.

[0011] According to the aforementioned labyrinth seal device for preventing side leakage of a lubrication pump, both oil inlet pipes are made of copper.

[0012] The above solution has the following advantages: the oil outlet pipes and oil flow pipes on both sides of the oil storage tank are tightly fitted together by sealing sleeves (rubber material) to form the first static seal. The oil inlet pipe between the oil flow pipe and the gear drive pump is designed as a labyrinth copper pipe structure, which blocks oil and gas leakage through multiple tortuous channels to form a dynamic seal. The double sealing design effectively prevents lubricating oil leakage and external contamination. Then, after the drive motor starts, it drives the gear drive pump to operate through the coupling, drawing the lubricating oil in the oil storage tank into the pump through the oil outlet pipe, oil flow pipe and labyrinth inlet pipe, and then delivering it to the lubrication point. The control valve can adjust the flow rate, and the control motor drives the drive rod and multiple drive rods to rotate, continuously stirring the lubricating oil to avoid component stratification due to long-term standing, and ensuring stable lubrication performance.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall schematic diagram of a labyrinth seal device for a lubrication pump that prevents side leakage, according to this utility model.

[0016] Figure 2This is a schematic diagram of the inner side of the oil storage tank of a labyrinth seal device for a lubricating pump that prevents side leakage, according to this utility model.

[0017] Figure 3 This is an enlarged schematic diagram of point A of a leak-proof labyrinth seal device for a lubrication pump according to this utility model.

[0018] Figure 4 This is a side view of the overall oblique side of a labyrinth-type sealing device for a lubrication pump that prevents side leakage, according to this utility model.

[0019] Legend:

[0020] 1. Bottom support; 2. Drive motor; 3. Gear drive pump; 4. Oil reservoir; 5. Oil outlet pipe; 6. Oil flow pipe; 7. Sealing sleeve; 8. Oil inlet pipe; 9. Control valve; 10. Control motor; 11. Drive rod; 12. Drive lever; 13. Scale markings; 14. Oil injection pipe; 15. Sealing plug. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4This utility model discloses a leak-proof labyrinth seal device for a lubricating pump, comprising a bottom support 1, a drive motor 2 fixed to the top left side of the bottom support 1, a gear drive pump 3 connected to the output end of the drive motor 2 via a coupling, an oil storage tank 4 fixed to the top of the gear drive pump 3, the oil storage tank 4 being internally connected to the gear drive pump 3, and labyrinth seal structures provided on both sides of the oil storage tank 4. Each labyrinth seal structure includes an oil outlet pipe 5, one end of which extends into the oil storage tank 4, and the other end of which is fixed to an oil flow pipe 6. Sealing sleeves 7 are fixed to the outside of both the oil outlet pipe 5 and the oil flow pipe 6. An oil inlet pipe 8 connects the inner side of the outer end of the oil flow pipe 6 to the inner side of the gear drive pump 3. The oil inlet pipe 8 is designed with a labyrinth structure, and a control valve 9 is provided on the outside of the oil storage tank 4. In the prior art... Currently, when lubricating a lubrication pump, the liquid oil stored in its reservoir requires high sealing performance to prevent leakage when it flows into the gear pump, which would affect the lubricating effect and reduce lubrication efficiency. To address this issue, a labyrinth sealing structure can be installed on both sides of the oil reservoir 4. An oil flow pipe 6 is embedded outside the oil outlet pipe 5, and sealing sleeves 7 are embedded between the oil outlet pipe 5 and the oil flow pipe 6, and between the oil flow pipe 6 and the oil inlet pipe 8, to enhance the sealing effect. The oil inlet pipe 8 is designed as a labyrinth structure, which can prevent oil and gas leakage, thereby improving the sealing effect and effectively preventing the oil inside the machine from being contaminated by the external environment, thus improving the performance and enhancing the sealing.

[0023] A control motor 10 is fixed at the center of the top of the oil storage tank 4. A drive rod 11 rotates inside the oil storage tank 4. The output end of the control motor 10 passes through the inside of the oil storage tank 4 and is fixedly connected to the drive rod 11 through a coupling. Multiple drive sub-rods 12 are fixedly arranged on the outside of the drive rod 11. By setting up the control motor 10, the drive rod 11 and the multiple drive sub-rods 12, the control motor 10 can be started, causing its output end to rotate with the drive rod 11 and the multiple drive sub-rods 12, which stirs the incoming lubricating oil and prevents stratification, thus affecting the performance.

[0024] Multiple scale lines 13 are longitudinally provided on the outer side of the oil storage tank 4 to better observe the specific height of the remaining lubricating oil inside the oil storage tank 4.

[0025] An oil injection pipe 14 is fixed at the top rear end of the oil storage tank 4. The lower side of the oil injection pipe 14 extends into the interior of the oil storage tank 4, and a sealing plug 15 is threaded on the inner side of the top of the oil injection pipe 14. By setting the oil injection pipe 14 and the sealing plug 15, it is convenient to introduce lubricating oil into the interior of the oil storage tank 4. Both sealing sleeves 7 are made of rubber. The rubber sealing sleeves 7 have good sealing performance. When used for static sealing, there is almost no leakage. When used for reciprocating motion, the sealing performance remains unchanged during the reciprocating process, and the leakage is very small.

[0026] The oil storage tank 4 is made entirely of transparent material for easy observation. Both oil inlet pipes 8 are made of copper to enhance heat dissipation and improve thermal conductivity and flexibility.

[0027] Working principle: First, the lubricating oil is stored in a transparent oil reservoir 4. The oil level can be observed in real time through the external scale 13. When adding oil, unscrew the sealing plug 15 and add lubricating oil through the oil filling pipe 14. After completion, tighten the sealing plug to ensure sealing. The oil outlet pipes 5 and the oil flow pipes 6 on both sides of the oil reservoir 4 are tightly fitted together by the sealing sleeves 7 (rubber material) to form the first static seal. The oil inlet pipe 8 between the oil flow pipe 6 and the gear-driven pump 3 is designed with a labyrinthine copper pipe structure. Through multiple tortuous channels, it blocks oil and gas leakage, forming a dynamic seal. The double sealing design effectively prevents lubricating oil leakage and external contamination. After the drive motor 2 starts, it drives the gear drive pump 3 through the coupling to draw the lubricating oil in the oil storage tank 4 into the pump through the oil outlet pipe 5, the oil flow pipe 6 and the labyrinthine oil inlet pipe 8, and then delivers it to the lubrication point. The control valve 9 can adjust the flow rate, and the control motor 10 drives the drive rod 11 and multiple drive branch rods 12 to rotate, continuously stirring the lubricating oil to prevent the components from separating due to long-term standing, and to ensure stable lubrication performance. The copper oil inlet pipe 8 uses its high thermal conductivity to accelerate the heat dissipation of the oil circuit, and the rubber sealing sleeve 7 maintains a low leakage effect in both static sealing and dynamic connection.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A labyrinth seal device for a lubrication pump to prevent side leakage, comprising: The bottom support (1) is characterized in that a drive motor (2) is fixed on the top left side of the bottom support (1), and a gear drive pump (3) is connected to the output end of the drive motor (2) through a coupling. An oil storage tank (4) is fixed on the top of the gear drive pump (3). The oil storage tank (4) is connected to the inside of the gear drive pump (3). A labyrinth sealing structure is provided on both sides of the outside of the oil storage tank (4). The labyrinth sealing structure includes an oil outlet pipe (5). One end of the oil outlet pipe (5) extends into the inside of the oil storage tank (4), and the other end is fixed with an oil flow pipe (6). A sealing sleeve (7) is fixed on the outside of both the oil outlet pipe (5) and the oil flow pipe (6). The inner side of the outer end of the oil flow pipe (6) is connected to the inner side of the gear drive pump (3) through an oil inlet pipe (8). The oil inlet pipe (8) is designed with a labyrinth structure, and a control valve (9) is provided on the outside of the oil storage tank (4).

2. The labyrinth seal device for preventing side leakage of a lubrication pump according to claim 1, characterized in that, A control motor (10) is fixed at the center of the top of the oil storage tank (4). A drive rod (11) rotates inside the oil storage tank (4). The output end of the control motor (10) passes through the inside of the oil storage tank (4) and is fixedly connected to the drive rod (11) through a coupling. Multiple drive sub-rods (12) are fixedly arranged on the outside of the drive rod (11).

3. The anti-leakage labyrinth seal device for a lubrication pump according to claim 1, characterized in that, The oil storage tank (4) has multiple scale lines (13) longitudinally opened on the outer front side.

4. The anti-leakage labyrinth seal device for a lubrication pump according to claim 1, characterized in that, The oil storage tank (4) is fixed with an oil injection pipe (14) at the top rear end. The lower side of the oil injection pipe (14) extends into the interior of the oil storage tank (4), and a sealing plug (15) is threaded on the inner side of the top of the oil injection pipe (14).

5. A labyrinth seal device for a lubrication pump to prevent side leakage according to claim 1, characterized in that, Both of the sealing sleeves (7) are made of rubber.

6. A labyrinth seal device for a lubrication pump to prevent side leakage according to claim 1, characterized in that, The oil storage tank (4) is made entirely transparent on the outside.

7. A labyrinth seal device for a lubrication pump to prevent side leakage according to claim 1, characterized in that, Both of the oil inlet pipes (8) are made of copper.

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