Modularized multi-point forced lubrication system

Abstract

The invention relates to the field of mechanical lubrication, in particular to a modularized multi-point forced lubrication system. Comprising a lubricating module and a cover plate module, and a main piston and an oil drainage piston are arranged in an inner cavity of a main body block in the lubricating module; the oil pump is started, lubricating oil pushes the main piston to move, then the position detection device detects that the main piston and the oil pump stop supplying oil, meanwhile, the electromagnet is started, the right side end face of the main piston is attracted, the main piston continues to move rightwards, at the moment, the connecting rope is tightened and pulls the oil drainage piston to move, the oil outlet is instantly opened, and the electromagnet is closed. And the main piston spring pushes the lubricating oil to flow out to finish oil supply circulation. By adopting the lubricating system, the lubricating oil can be forcibly supplied without being influenced by the resistance of each branch, and the modular design is adopted, so that the later equipment installation and transformation are facilitated, and the product applicability is high.

Description

Technical Field

[0001] The invention relates to the field of mechanical lubrication, in particular to a modular multi-point forced lubrication system. Background Art

[0002] During the operation of the machine, lubricating oil or grease needs to be supplied to key parts to form an oil film on the contact surface to reduce friction and wear and extend the service life of the machine. Most mechanical equipment is limited by the frequency of use and cost, and mostly adopts intermittent lubrication, that is, a certain amount of lubricating oil is supplied to each lubrication point at regular intervals.

[0003] Traditional lubrication systems use distributors to divide a main oil circuit into multiple branches. This method makes it difficult to ensure that each branch lubrication point can obtain sufficient lubricating oil. Affected by many factors such as the length of the oil pipe, the diameter of the pipe, the number of joints, etc., the resistance flowing through each branch is different. The lubricating oil is more likely to flow to the branch with less resistance, and it is impossible to force the lubricating oil to flow to the branch with greater resistance. If the resistance of a branch is greater than that of other branches, the lubrication point is very likely to not obtain sufficient lubrication, resulting in friction damage, which seriously reduces the service life of the mechanical equipment.

[0004] With the development of technology, progressive lubrication systems are becoming more and more widely used. However, this type of lubrication system is not easy to install in a modular manner, which limits the operators' self-maintenance and subsequent installation and modification. Another problem is that once a lubrication point is blocked, the entire lubrication system will be paralyzed, and the fault location cannot be easily found by appearance alone. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a lubrication system that is not affected by factors such as the length, diameter, and number of joints of the branch oil pipe, and adopts a forced lubrication method to forcefully inject lubricating oil into each lubrication point, and ensure that each lubrication point can obtain a quantitative and sufficient amount of lubricating oil. The modular design is convenient for operators to install and maintain by themselves later, and to install and modify later; during use, once a lubrication point is blocked, the fault location can be easily observed.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a modular multi-point forced lubrication system, including a lubrication module and a cover plate module, the lubrication module includes a main block, the main block has an oil inlet and an oil outlet on the outside, and a piston cavity on the inside, the piston cavity is provided with a main piston, a main piston spring, and an oil drain piston, and the main piston and the oil drain piston are connected by a connecting rope; the cover plate module includes a cover plate, and a position detection device and an electromagnet are installed on the outside; the oil pump is started, and the lubricating oil flows through the oil inlet to the piston cavity of the main block, pushing the main piston to move, and the lubricating oil fills the piston cavity After the main body is moved, the position detection device detects the main piston, the oil pump stops supplying oil, and the electromagnet is started at the same time, adsorbing the right end face of the main piston. The main piston continues to move to the right. At this time, the connecting rope is tightened and pulls the drain piston to move. The oil outlet is instantly opened, the electromagnet is closed, and the main piston spring pushes the main piston to move to the left. The lubricating oil flows to the oil outlet through the holes around the drain piston, and the lubricating oil in the piston cavity is forcibly supplied to each lubrication point. When the main piston moves to the left end, it pushes the drain piston back to its position, the oil outlet is closed, and an oil supply cycle is completed, waiting for the next oil pump to start. The lubrication module and cover module are modularly designed. If you need to supply oil to N lubrication points, you can list N identical lubrication modules and 1 cover module. The cover module lists N electromagnets at the same time; the selection of lubrication modules with different piston cavity diameters can control the oil supply to each lubrication point.

[0007] As a preferred technical solution of the present invention, the holes around the oil drain piston are distributed outside the aperture of the oil outlet.

[0008] As a preferred technical solution of the present invention, an oil drain piston spring is provided on the left side of the oil drain piston.

[0009] As a preferred technical solution of the present invention, the left end of the main piston is designed as a ejector pin structure, and the right end is designed as an end face structure.

[0010] As a preferred technical solution of the present invention, the lubrication module is provided with a one-way valve to prevent mutual interference between the modules in the oil supply state.

[0011] As a preferred technical solution of the present invention, the oil separator block is provided with an oil return port.

[0012] As a preferred technical solution of the present invention, the connecting rope is made of soft, oil-resistant and corrosion-resistant material.

[0013] As a preferred technical solution of the present invention, an elastic rubber pad is provided between the lubrication module and the cover plate module.

[0014] The beneficial effects of the present invention are as follows: lubricating oil is forcibly supplied to the lubrication points, which is not affected by the resistance of each branch, ensuring that each point can obtain a sufficient amount of lubricating oil; the lubrication modules do not affect each other, and each lubrication module works independently. Once the main piston of a lubrication module cannot return to its position, it means that the corresponding lubrication port is blocked, and the fault location can be quickly found; a modular design is adopted, and lubricating oil can be supplied to multiple lubrication points of mechanical equipment at the same time by listing, which is also convenient for the subsequent modification of mechanical equipment to add lubrication points, and the product has strong applicability; the external oil supply pump is not required to have too many additional functions, and even manual oiling can achieve the lubrication effect, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the lubrication module of the present invention.

[0016] Figure 2 It is a structural diagram of the cover module of the present invention.

[0017] Figure 3 It is a schematic diagram of the initial state of the present invention taking supplying two lubrication points as an example.

[0018] Figure 4 This is a schematic diagram of the oil supply operation of the first lubrication module, taking supplying two lubrication points as an example of the present invention.

[0019] Figure 5 This is a schematic diagram of the oil supply operation for the second lubrication module, taking supplying two lubrication points as an example of the present invention.

[0020] Figure 6 It is a schematic diagram of the oil supply completion state of the present invention taking supplying two lubrication points as an example.

[0021] Figure 7 The present invention is a schematic diagram of the operation of an electromagnet taking the supply of two lubrication points as an example.

[0022] Figure 8 The present invention is a schematic diagram of oil discharge operation taking supplying two lubrication points as an example.

[0023] Fig. 9 This is a schematic diagram of the end of oil draining, taking supplying two lubrication points as an example of the present invention.

[0024] In the figure: 11, main block; 111, oil inlet; 112, oil outlet; 113, oil return port; 12, main piston; 13, main piston spring; 14, oil drain piston; 15, oil drain piston spring; 16, connecting rope; 17, one-way valve; 21 cover plate; 22, position detection device; 23, electromagnet. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Combined with Figure 1-2 As shown, the lubrication module includes a main body block 11, the main body block 11 has an oil inlet 111 and an oil outlet 112 on the outside, and a piston cavity inside, in which a main piston 12, a main piston spring 13, and an oil drain piston 14 are arranged, and the main piston 12 and the oil drain piston 14 are connected by a connecting rope 16; the cover plate module includes a cover plate 21, and a position detection device 22 and an electromagnet 23 are installed on the outside.

[0027] Combined with Figure 3 As shown, a modular multi-point forced lubrication system is in an initial state taking supplying two lubrication points as an example, and includes two lubrication modules and a cover module.

[0028] Combined with Figure 4 As shown, it is a schematic diagram of the oil supply operation of the first lubrication module, taking supplying two lubrication points as an example. The oil pump is started, and the lubricating oil flows through the oil inlet 111 to the piston cavity of the main block 11, pushing the main piston 12 to move to the right. At this time, the connecting rope 16 is in a relaxed state.

[0029] Combined with Figure 5 As shown, the schematic diagram of the oil supply operation of the second lubrication module is shown, taking supplying two lubrication points as an example. After the first lubrication module is filled with lubricating oil, the oil continues to be supplied to the second lubrication module.

[0030] Combined with Figure 6 As shown, it is a schematic diagram of the oil supply completion state taking the supply of two lubrication points as an example. The two lubrication module cavities are filled with lubricating oil. At this time, the two connecting ropes 16 are in a stretched but not tightened state. The position detection device 22 in the cover module detects the tail end of the main piston 12 of the second lubrication module and gives a signal.

[0031] Combined with Figure 7 As shown, the schematic diagram of the electromagnet working is taken as an example of supplying two lubrication points. The oil pump stops supplying oil, all the one-way valves return to their positions to prevent backflow, and the electromagnet 23 is started at the same time, pulling the main piston 12 to continue to move to the right for a distance, the connecting rope 16 is tightened, and the oil drain piston 14 is pulled to move to the right.

[0032] Combined with Figure 8 As shown, a schematic diagram of oil discharge operation is shown for supplying two lubrication points as an example. The oil pressure in the piston cavity in the main block 11 drops instantly. Pushed by the main piston spring 13, the lubricating oil flows through the holes around the oil discharge piston 14 to the oil outlet 112, forcing the lubricating oil in the piston cavity to be supplied to each lubrication point.

[0033] Combined with Fig. 9 As shown, it is a schematic diagram of the end of oil draining, taking supplying two lubrication points as an example. The left ejector pin of the main piston 12 pushes the drain piston 14 back to its original position, and an oil supply cycle ends, waiting for the next oil supply from the oil pump.

[0034] In order to further illustrate the above embodiment, Figure 8 As shown, the holes around the oil drain piston 14 are distributed outside the aperture of the oil outlet 112, ensuring that the lubricating oil does not pass through when the two are attached, but the lubricating oil can pass through when the two are separated.

[0035] In order to further illustrate the above embodiment, Figure 8 As shown, there is an oil drain piston spring 15 with less elasticity on the left side of the oil drain piston 14. At this time, the lubricating oil flows to the oil outlet 112 through the holes around the oil drain piston 14 at high speed. The oil drain piston spring 15 provides thrust to prevent the thrust generated by the flow of lubricating oil from causing the oil drain piston 15 to move to the left and block the oil outlet.

[0036] In order to further illustrate the above embodiment, Fig. 9 As shown, the left end of the main piston 12 is designed as a ejector pin structure. After the oil is drained, the ejector pin on the left side of the main piston 12 can push the oil drain piston 14 back to its original position, and form a cavity in the initial state; Figure 7 As shown, the right end of the main piston 12 is designed as an end face structure, which is convenient for the adsorption of the electromagnet 23. At the same time, this end face can intuitively reflect the movement of the main piston 12 during the oil release process. If the main piston 12 does not move, it means that the lubrication point corresponding to this lubrication module is blocked, and the lubrication point can be directly repaired and inspected.

[0037] In order to further illustrate the above embodiment, Figure 7 , 8 As shown, the lubrication module is provided with a one-way valve to prevent mutual interference between modules under the oil supply state.

[0038] In order to further illustrate the above embodiment, Figure 8 As shown, the main body block 11 is provided with an oil return port 113, which can recover the lubricating oil between the oil inlet 111 and the one-way valve 17 and flow it back to the oil tank through the oil return port 113 to avoid waste.

[0039] In order to further illustrate the above embodiment, Figure 2-9 As shown, the connecting rope 16 is made of soft, oil-resistant and corrosion-resistant material.

[0040] In order to further illustrate the above embodiment, Figure 2-9 As shown, an elastic rubber pad is provided between two lubrication modules and a cover module to prevent oil leakage from the gap between the modules.

[0041] The working principle of the above embodiment is as follows: a modular multi-point forced lubrication system includes a lubrication module and a cover plate module. The lubrication module includes a main block 11. The main block 11 has an oil inlet 111 and an oil outlet 112 on the outside and a piston cavity inside. The piston cavity is provided with a main piston 12, a main piston spring 13 and an oil drain piston 14. The main piston 12 and the oil drain piston 14 are connected by a connecting rope 16. The cover plate module includes a cover plate 21, and a position detection device 22 and an electromagnet 23 are installed on the outside. The oil pump is started, and the lubricating oil flows through the oil inlet 111 to the piston cavity of the main block 11, pushing the main piston 12 to move. After the lubricating oil fills the piston cavity, The position detection device 22 detects the main piston 12, the oil pump stops supplying oil, and the electromagnet 23 is started at the same time to adsorb the right end face of the main piston 12. The main piston 12 continues to move to the right. At this time, the connecting rope 16 is tightened and pulls the drain piston 14 to move, and the oil outlet is instantly opened. The electromagnet 23 is closed, and the main piston spring 13 pushes the main piston 12 to move to the left. The lubricating oil flows to the oil outlet 112 through the holes around the drain piston 14, and the lubricating oil in the piston cavity is forced to be supplied to each lubrication point. When the main piston 12 moves to the left end, it pushes the drain piston 14 back to its position, and the oil outlet 112 is closed, completing an oil supply cycle, waiting for the next oil pump to supply oil.

[0042] The modular multi-point forced lubrication system of the embodiment of the present invention described above in combination with the accompanying drawings can force the lubricating oil to be supplied to the corresponding lubrication points without being affected by the resistance of each branch, ensuring that each point can get enough lubricating oil; each lubrication module does not affect each other, and the fault location can be quickly found; the modular design is adopted to facilitate the subsequent modification and installation of lubrication points for mechanical equipment, and the product has strong applicability. However, the present utility model is not limited to the described implementation mode, and these changes, modifications, replacements and deformations of the implementation mode still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.

Claims

1. A modular multi-point forced lubrication system, comprising a lubrication module and a cover module, characterized in that: The lubrication module comprises a main body block (11), the main body block (11) has an oil inlet (111) and an oil outlet (112) on the outside, and a piston cavity on the inside. A main piston (12), a main piston spring (13), and an oil drain piston (14) are arranged in the piston cavity, and the main piston (12) and the oil drain piston (14) are connected by a connecting rope (16); the cover plate module comprises a cover plate (21), and a position detection device (22) and an electromagnet (23) are installed on the outside; the oil pump is started, and lubricating oil flows through the oil inlet (111) to the piston cavity of the main body block (11), pushing the main piston (12) to move; after the lubricating oil fills the piston cavity, the position detection device (22) detects that the main piston (1 2) The oil pump stops supplying oil and simultaneously starts the electromagnet (23) to attract the right end surface of the main piston (12). The main piston (12) continues to move to the right. At this time, the connecting rope (16) is tightened and pulls the drain piston (14) to move. The oil outlet is instantly opened, and the electromagnet (23) is closed. The main piston spring (13) pushes the main piston (12) to move to the left. The lubricating oil flows through the holes around the drain piston (14) to the oil outlet (112), and the lubricating oil in the piston cavity is forcibly supplied to each lubrication point. When the main piston (12) moves to the left end, it pushes the drain piston (14) back to its original position, and the oil outlet (112) is closed, completing an oil supply cycle, and waiting for the next oil pump to supply oil; The lubrication module and cover module are modularly designed. If you need to supply oil to N lubrication points, you only need to list N identical lubrication modules and 1 cover module. The cover module also lists N electromagnets.

2. The modular multi-point forced lubrication system according to claim 1, characterized in that: The holes around the oil drain piston (14) are all distributed outside the aperture of the oil outlet (112).

3. The modular multi-point forced lubrication system according to claim 1, characterized in that: An oil drain piston spring (15) is provided on the left side of the oil drain piston (14).

4. The modular multi-point forced lubrication system according to claim 1, characterized in that: The left end of the main piston (12) is designed as a ejector pin structure, and the right end is designed as an end face structure.

5. The modular multi-point forced lubrication system according to claim 1, characterized in that: The lubrication module is provided with a one-way valve (17).

6. The modular multi-point forced lubrication system according to claim 1, characterized in that: The main body block (11) is provided with an oil return port (113).

7. The modular multi-point forced lubrication system according to claim 1, characterized in that: The connecting rope (16) is made of a soft, oil-resistant and corrosion-resistant material.

8. The modular multi-point forced lubrication system according to claim 1, characterized in that: Elastic rubber pads are arranged between the N lubrication modules and the cover plate modules.

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