A dual line lubrication system

Abstract

The utility model relates to two -wire type lubricating technical field, concretely is a two -wire type lubricating system, the utility model discloses lubricating pump, first connecting pipe, reversing pump, two second connecting pipes, two oil pipes and two distributors, the surface of every one distributor is fixed with a plurality of first branch pipes, every one first branch pipe is detachably installed with second branch pipe. The utility model is provided with second branch pipe, external thread and internal thread etc. through the detachable structure of external thread and internal thread screwing, the linkage design of collocating spring, sealing ball, abutting pipe, the quick dismounting of second branch pipe can be realized, and after installation, the lubrication point position can be flexibly adjusted according to the equipment debugging, working condition change and other needs, completely get rid of the rigid limitation of traditional welding mode, easily adapt to the lubrication point adjustment needs under a variety of scenes.

Description

Technical Field

[0001] This utility model relates to the field of dual-line lubrication technology, specifically a dual-line lubrication system. Background Technology

[0002] A dual-line lubrication system is a mechanical lubrication device that achieves lubrication through the alternating operation of two main oil pipes. Its core components include a lubrication pump, a reversing valve, a dual-line distributor, and the main oil pipes. The reversing valve switches the oil supply and depressurization states of the two main oil pipes. One pipe delivers high-pressure grease to the distributor, where it is quantitatively distributed and then delivered to each lubrication point via branch pipes. Simultaneously, the other pipe depressurizes, allowing residual grease to flow back to the oil tank. This alternating cycle ensures continuous lubrication. It features uniform oil supply, reliable sealing, and adaptability to multiple lubrication points, and is widely used for lubricating friction parts in machinery, metallurgical, and other equipment.

[0003] In existing manual dual-line lubrication systems, the branch pipes, distributors, and lubrication points are mostly fixed by welding. Although this can ensure high-pressure sealing, it is rigid and lacks flexibility. The position of the branch pipe cannot be changed after installation. Subsequent adjustments to the lubrication points require disassembling and welding the original structure, cutting the pipes, and welding again. The operation is cumbersome, time-consuming, and labor-intensive, making it difficult to adapt to the lubrication needs of flexible adjustment. Therefore, we propose a dual-line lubrication system. Utility Model Content

[0004] The purpose of this invention is to provide a dual-line lubrication system to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions: A dual-line lubrication system includes a lubrication pump, a first connecting pipe, a reversing pump, two second connecting pipes, two oil supply pipes, and two distributors. Each distributor has multiple first branch pipes fixedly connected to its surface, and each first branch pipe can be detachably installed with a second branch pipe.

[0006] Each of the first branch pipes has an internal thread on the inner wall of the end away from the distributor. A sealing ring is fixedly connected to the inner cavity of the first branch pipe, and a sealing ball for sealing the channel of the first branch pipe is movably abutted against the surface of the sealing ring.

[0007] The outer wall of the second branch pipe is provided with external threads, which are threadedly connected to the internal threads. One end of the second branch pipe is fixedly connected to a lubrication head, and the other end of the second branch pipe is fixedly connected to a connecting rod. The surface of the connecting rod is fixedly connected to a stop pipe, which is in movable contact with the sealing ball and is used to push the sealing ball to move.

[0008] Preferably, the inner wall of the first branch pipe is also fixedly connected to a fixing ring, and four springs are provided on the side of the fixing ring near the sealing ball. One end of each of the four springs is fixedly connected to the fixing ring, and the other end of each of the four springs is fixedly connected to a cross plate. The surface of the sealing ball is fixedly sleeved on the cross plate.

[0009] Preferably, the wall plate of the fixed ring is movably connected with four limiting rods, the ends of the four limiting rods away from the distributor are respectively fixedly connected to the four ends of the cross plate, and the four springs are respectively sleeved on the four limiting rods.

[0010] Preferably, a first sealing gasket is fixedly connected to the surface of the sealing ring, and the first sealing gasket is in movable contact with the surface of the sealing ball; a second sealing gasket is fixedly connected to the outer wall of the second branch pipe, and the second sealing gasket is in movable contact with the surface of the internal thread.

[0011] Preferably, one end of the first connecting pipe is fixedly connected to the oil outlet of the lubrication pump, and the other end of the first connecting pipe is fixedly connected to the oil inlet of the reversing pump. The two second connecting pipes are respectively fixedly connected to the two oil outlets of the reversing pump. The oil outlets of the two second connecting pipes are respectively fixedly connected to the oil inlet of the two oil supply pipes. The oil outlets of the two oil supply pipes are respectively fixedly connected to the oil inlet of the two distributors.

[0012] Preferably, the multiple first branches on the two distributors are equidistant.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the setting of a second branch pipe, external thread and internal thread, and the detachable structure of the external thread and internal thread screwing together, combined with the linkage design of spring, sealing ball and abutment pipe, can realize the quick installation and removal of the second branch pipe. After installation, the lubrication point position can be flexibly adjusted according to the needs of equipment debugging, working condition change, etc., completely get rid of the rigid limitations of traditional welding method, and easily adapt to the lubrication point adjustment needs in various scenarios.

[0014] 2. This utility model, through the use of springs, sealing balls, and abutment pipes, achieves automatic opening and closing of the first branch pipe via a linkage mechanism between the abutment pipe, sealing ball, and spring. Combined with the double sealing structure of the first sealing gasket and sealing ball, and the second sealing gasket and internal thread, it ensures sealing performance under high-pressure conditions while avoiding the problem of pipeline damage caused by traditional welding. Furthermore, it eliminates the need for complex welding processes, significantly simplifying the operation process and improving work efficiency, effectively solving the pain points of cumbersome, time-consuming, and labor-intensive traditional methods. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the first branch pipe in this utility model; Figure 3 This is a schematic diagram of the internal structure of the first branch pipe in this utility model; Figure 4 This is a schematic diagram of the structure of the second branch pipe in this utility model.

[0015] In the diagram: 1. Lubrication pump; 2. First connecting pipe; 3. Reversing pump; 4. Second connecting pipe; 5. Oil delivery pipe; 6. Distributor; 7. First branch pipe; 8. Lubrication head; 9. Internal thread; 10. Retaining ring; 11. Spring; 12. Cross plate; 13. Limiting rod; 14. Sealing ball; 15. Sealing ring; 16. Second branch pipe; 17. External thread; 18. Connecting rod; 19. Abutment pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Example like Figures 1-4 As shown, a dual-line lubrication system includes a lubrication pump 1, a first connecting pipe 2, a reversing pump 3, two second connecting pipes 4, two oil supply pipes 5, and two distributors 6. Each distributor 6 has multiple first branch pipes 7 fixedly connected to its surface. Each first branch pipe 7 can be detachably installed with a second branch pipe 16. One end of the first connecting pipe 2 is fixedly connected to the oil outlet of the lubrication pump 1, and the other end of the first connecting pipe 2 is fixedly connected to the oil inlet of the reversing pump 3. The two second connecting pipes 4 are respectively fixedly connected to the two oil outlets of the reversing pump 3. The oil outlets of the two second connecting pipes 4 are respectively fixedly connected to the oil inlets of the two oil supply pipes 5. The oil outlets of the two oil supply pipes 5 are respectively fixedly connected to the oil inlets of the two distributors 6. The multiple first branch pipes 7 on the two distributors 6 are equidistantly arranged.

[0018] In practice, the high-pressure grease generated by the lubrication pump 1 is delivered to the reversing pump 3 via the first connecting pipe 2. The reversing pump 3 switches the oil circuit and introduces the grease into the corresponding oil supply pipe 5 through one of the second connecting pipes 4. After the high-pressure grease enters the distributor 6 along the oil supply pipe 5, it is divided by multiple equally spaced first branch pipes 7 and then delivered to each lubrication point through the detachable second branch pipe 16. At the same time, the other oil supply pipe 5 and the distributor 6 are in a depressurized state, and the residual grease in the pipe flows back to the lubrication pump 1 via the reversing pump 3. After manually switching the reversing pump 3, the two oil circuits switch the oil supply and return functions, and so on, to achieve continuous and uniform lubrication of each lubrication point.

[0019] As a technical optimization of this utility model, each first branch pipe 7 has an internal thread 9 on its inner wall at the end away from the distributor 6. A sealing ring 15 is fixedly connected to the inner cavity of the first branch pipe 7, and a sealing ball 14 for sealing the channel of the first branch pipe 7 is movably abutted against the surface of the sealing ring 15. The outer wall of each second branch pipe 16 has an external thread 17, which is threadedly connected to the internal thread 9. A lubrication head 8 is fixedly connected to one end of the second branch pipe 16, and a connecting rod 18 is fixedly connected to the other end of the second branch pipe 16. An abutment tube 19 is fixedly connected to the surface of the connecting rod 18, which movably abuts against the sealing ball 14 and is used to push the sealing ball 14 to move. A fixing ring 10 is also fixedly connected to the inner wall of the first branch pipe 7. Four springs 11 are provided on one side near the sealing ball 14. One end of each of the four springs 11 is fixedly connected to the fixing ring 10, and the other end of each of the four springs 11 is fixedly connected to the cross plate 12. The surface of the sealing ball 14 is fixedly fitted onto the cross plate 12. Four limiting rods 13 are movably inserted into the wall plate of the fixing ring 10. The ends of the four limiting rods 13 away from the distributor 6 are respectively fixedly connected to the four ends of the cross plate 12. The four limiting rods 13 are respectively fitted onto the inner rings of the four springs 11. A first sealing gasket is fixedly connected to the surface of the sealing ring 15. The first sealing gasket movably abuts against the surface of the sealing ball 14. A second sealing gasket is fixedly connected to the outer wall of the second branch pipe 16. The second sealing gasket movably abuts against the surface of the internal thread 9.

[0020] In specific implementation, when the second branch pipe 16 needs to be installed, its outer thread 17 is screwed into the inner thread 9 of the first branch pipe 7. During the screwing process, the abutment pipe 19 at the end of the second branch pipe 16 gradually pushes the sealing ball 14 to move away from the sealing ring 15, compressing the spring 11 and driving the cross plate 12 and the limiting rod 13 to move synchronously, so that the sealing ball 14 is separated from the first sealing gasket on the surface of the sealing ring 15, and the channel of the first branch pipe 7 is opened. At this time, the second sealing gasket on the outer wall of the second branch pipe 16 is tightly attached to the surface of the inner thread 9 of the first branch pipe 7 to achieve double sealing. After the grease enters the first branch pipe 7 through the distributor 6, it flows into the second branch pipe 16 through the opened channel and is finally delivered to the lubrication point by the lubrication head 8. When the second branch pipe 16 is disassembled, the external thread 17 and internal thread 9 are unscrewed, the thrust of the abutment pipe 19 on the sealing ball 14 disappears, the spring 11 elastically resets, pushes the cross plate 12 to move the sealing ball 14 back, so that it abuts against the first sealing gasket of the sealing ring 15 again, and closes the channel of the first branch pipe 7. This realizes automatic on / off and sealing control during the disassembly and assembly of the branch pipe, ensuring the sealing performance and flexibility of the lubrication system.

[0021] When using this utility model, when the second branch pipe 16 needs to be installed, its outer thread 17 is screwed into the inner thread 9 of the first branch pipe 7. During the screwing process, the abutment pipe 19 at the end of the second branch pipe 16 gradually pushes the sealing ball 14 away from the sealing ring 15, compressing the spring 11 and driving the cross plate 12 and the limiting rod 13 to move synchronously, so that the sealing ball 14 separates from the first sealing gasket on the surface of the sealing ring 15, and the channel of the first branch pipe 7 is opened. At this time, the second sealing gasket on the outer wall of the second branch pipe 16 is tightly attached to the surface of the inner thread 9 of the first branch pipe 7, achieving double sealing. The high-pressure grease generated by the lubrication pump 1 is transported to the reversing pump 3 through the first connecting pipe 2. The reversing pump 3 switches the oil circuit and introduces the grease into the corresponding oil supply pipe 5 through one of the second connecting pipes 4. After the high-pressure grease enters the distributor 6 along the oil supply pipe 5, the grease enters the first branch pipe 7 through the distributor 6 and flows into the second branch pipe 16 through the opened channel. Finally, it is delivered to the lubrication point by the lubrication head 8 to complete the lubrication of the workpiece.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dual-line lubrication system, comprising a lubrication pump (1), a first connecting pipe (2), a reversing pump (3), two second connecting pipes (4), two oil delivery pipes (5), and two distributors (6), characterized in that, Each of the distributors (6) has a plurality of first branch pipes (7) fixedly connected to its surface, and each of the first branch pipes (7) can be detachably installed with a second branch pipe (16). Each of the first branch pipes (7) has an internal thread (9) on the inner wall of the end away from the distributor (6). A sealing ring (15) is fixedly connected to the inner cavity of the first branch pipe (7). The surface of the sealing ring (15) is in contact with a sealing ball (14) for sealing the channel of the first branch pipe (7). The outer wall of the second branch pipe (16) is provided with external threads (17), which are threadedly connected to the internal threads (9). One end of the second branch pipe (16) is fixedly connected to a lubricating head (8), and the other end of the second branch pipe (16) is fixedly connected to a connecting rod (18). The surface of the connecting rod (18) is fixedly connected to a connecting pipe (19), which is in movable contact with the sealing ball (14) and is used to push the sealing ball (14) to move.

2. The dual-line lubrication system according to claim 1, characterized in that, The inner wall of the first branch pipe (7) is also fixedly connected to a fixing ring (10). The fixing ring (10) is provided with four springs (11) on the side near the sealing ball (14). One end of each of the four springs (11) is fixedly connected to the fixing ring (10), and the other end of each of the four springs (11) is fixedly connected to a cross plate (12). The surface of the sealing ball (14) is fixedly sleeved on the cross plate (12).

3. The dual-line lubrication system according to claim 2, characterized in that, The wall panel of the fixed ring (10) is movably connected with four limiting rods (13). The ends of the four limiting rods (13) away from the distributor (6) are respectively fixedly connected to the four ends of the cross plate (12), and the four springs (11) are respectively sleeved on the four limiting rods (13).

4. A dual-line lubrication system according to claim 3, characterized in that, The surface of the sealing ring (15) is fixedly connected to a first sealing gasket, which is in movable contact with the surface of the sealing ball (14). The outer wall of the second branch pipe (16) is fixedly connected to a second sealing gasket, which is in movable contact with the surface of the internal thread (9).

5. A dual-line lubrication system according to claim 1, characterized in that, One end of the first connecting pipe (2) is fixedly connected to the oil outlet of the lubrication pump (1), and the other end of the first connecting pipe (2) is fixedly connected to the oil inlet of the reversing pump (3). The two second connecting pipes (4) are respectively fixedly connected to the two oil outlets of the reversing pump (3). The oil outlets of the two second connecting pipes (4) are respectively fixedly connected to the oil inlet of the two oil supply pipes (5). The oil outlets of the two oil supply pipes (5) are respectively fixedly connected to the oil inlet of the two distributors (6).

6. A dual-line lubrication system according to claim 1, characterized in that, The multiple first branches (7) on the two distributors (6) are all equidistantly arranged.

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