Automatic lubricating system capable of recycling thin oil for hot die forging press

Abstract

The utility model relates to an automatic lubricating system capable of recycling thin oil for a hot die forging press, which comprises a hydraulic station, the hydraulic station is connected with an oil pump, and the oil pump is respectively connected with oil inlet channels on a circulating lubricating oil way A, a circulating lubricating oil way B, a circulating lubricating oil way C and the circulating lubricating oil way B through oil inlet channels. Oil outlet channels on the circulating lubricating oil way A, the circulating lubricating oil way B, the circulating lubricating oil way C and the circulating lubricating oil way B are connected with an oil return way, the oil return way is connected with a hydraulic station, the circulating lubricating oil way A lubricates a left rack copper tile, and the circulating lubricating oil way B lubricates a left crank copper tile. The circulating lubricating oil way C lubricates the crank right copper tile, and the circulating lubricating oil way D lubricates the rack right copper tile. Thin oil lubrication is adopted, a circulating lubrication channel is designed for the copper tile to be matched with an oil supply system to achieve self-circulating lubrication, and the service life of the copper tile is prolonged.

Description

Technical Field:

[0001] The utility model relates to the technical field of hot die forging presses, and particularly relates to a recyclable automatic lubrication system for thin oil of a hot die forging press. Background Art:

[0002] At present, dry oil lubrication systems are generally used for the lubrication of the crankshaft of hot die forging presses. The lubricating grease of the dry oil lubrication system cannot be recycled, resulting in waste and environmental pollution. Due to the poor fluidity of the lubricating grease in the dry oil lubrication system, the force-bearing surface of the crankshaft of the press is under a pressure of up to thousands of tons, and the lubricating grease cannot enter or the amount of entry is small, which easily causes problems such as increased temperature of the bearing bush, rapid wear of the bearing bush, and even seizure of the bearing bush.

[0003] It should be noted that the above content belongs to the technical cognitive scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model:

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and provide a recyclable automatic lubrication system for thin oil of a hot die forging press, which uses thin oil lubrication and performs cyclic self-lubrication at the bearing bush, so as to improve the service life of the bearing bush and other advantages.

[0005] The utility model realizes the above purpose by adopting the following technical solutions:

[0006] A recyclable automatic lubrication system for thin oil of a hot die forging press includes a hydraulic station. The hydraulic station is connected with an oil pump. The oil pump is respectively connected with a circulating lubricating oil path A, a circulating lubricating oil path B, a circulating lubricating oil path C, and an oil inlet channel on the circulating lubricating oil path B through an oil inlet path. The oil outlet channels on the circulating lubricating oil path A, the circulating lubricating oil path B, the circulating lubricating oil path C, and the circulating lubricating oil path B are respectively connected with an oil return path. The oil return path is connected with the hydraulic station. The circulating lubricating oil path A lubricates the left copper bearing bush of the frame. The circulating lubricating oil path B lubricates the left copper bearing bush of the crank. The circulating lubricating oil path C lubricates the right copper bearing bush of the crank. The circulating lubricating oil path D lubricates the right copper bearing bush of the frame.

[0007] A filter, a pilot-operated electromagnetic overflow valve, a flow meter, a pressure gauge, and a throttle valve are arranged on the oil inlet path. A heat exchanger is arranged on the oil return path.

[0008] The circulating lubricating oil path A includes an oil inlet passage A provided on the support sleeve A. The oil inlet passage A is communicated with a lubricating passage A provided on the left copper bushing of the frame. The support sleeve A is also provided with an oil collecting groove A and an oil outlet passage A. The lubricating passage A is communicated with the oil collecting groove A. The oil collecting groove A is communicated with the oil outlet passage A. The oil outlet passage A is connected with the oil return path. Sealing rings A are respectively arranged on both sides of the support sleeve A. The left copper bushing of the frame is installed on the frame through the support sleeve A. A crankshaft is installed in the left copper bushing of the frame.

[0009] The structures of the circulating lubricating oil path B and the circulating lubricating oil path C are the same. They include an oil inlet passage provided on the connecting rod. Lubricating passages are respectively arranged in the left crank copper bushing and the right crank copper bushing. The oil inlet passage is connected with the lubricating passages. The inner ends of the two lubricating passages are communicated with an oil collecting groove provided on the connecting rod. The connecting rod is also provided with an oil outlet passage communicated with the oil collecting groove. The oil outlet passage is connected with the oil return path. Sealing rings are respectively arranged on both sides of the connecting rod. The connecting rod is connected with the crank of the crankshaft through the left crank copper bushing and the right crank copper bushing.

[0010] The circulating lubricating oil path D includes an oil inlet passage B provided on the support sleeve B. The oil inlet passage B is communicated with a lubricating passage B provided on the right copper bushing of the frame. The support sleeve B is also provided with an oil collecting groove B and an oil outlet passage B. The lubricating passage B is communicated with the oil collecting groove B. The oil collecting groove B is communicated with the oil outlet passage B. The oil outlet passage B is connected with the oil return path. Sealing rings B are respectively arranged on both sides of the support sleeve B. The right copper bushing of the frame is installed on the frame through the support sleeve B. A crankshaft is installed in the right copper bushing of the frame.

[0011] The present utility model adopts the above structure and can bring the following beneficial effects:

[0012] By respectively designing circulating lubricating oil paths in the left copper bushing of the frame, the right copper bushing of the frame, the left crank copper bushing and the right crank copper bushing, and then cooperating with the oil supply system to realize the circulating lubrication of the crankshaft, an oil film is formed on the stress surface of the crankshaft to take away heat, effectively improving the service life of the copper bushings (i.e., bearing bushes), effectively reducing the maintenance cost of the equipment, and prolonging the service life of the equipment. Description of the drawings:

[0013] Figure 1 It is a schematic structural diagram of the circulating lubricating channel of the present utility model;

[0014] Figure 2 It is a schematic structural diagram of the thin oil automatic lubrication system of the present utility model;

[0015] In the figure, 1. hydraulic station, 2. oil pump, 3. oil inlet circuit, 4. circulating lubricating oil circuit A, 401. oil inlet passage A, 402. lubricating passage A, 403. oil sump A, 404. oil outlet passage A, 405. sealing ring A, 5. circulating lubricating oil circuit B, 501. oil inlet passage, 502. lubricating passage, 503. oil sump, 504. oil outlet passage, 505. sealing ring, 6. circulating lubricating oil circuit C, 7. circulating lubricating oil circuit D, 701. oil inlet passage B, 702. lubricating passage B, 703. oil sump B, 704. oil outlet passage B, 705. sealing ring B, 8. oil return circuit, 9. left copper bushing of the frame, 10. left copper bushing of the crank, 11. right copper bushing of the crank, 12. right copper bushing of the frame, 13. filter, 14. pilot-operated electromagnetic overflow valve, 15. flowmeter, 16. pressure gauge, 17. heat exchanger, 18. frame, 19. support sleeve A, 20. support sleeve B, 21. connecting rod, 22. crankshaft, 23. crank, 24. throttle valve. Specific embodiments:

[0016] In order to more clearly illustrate the overall concept of the present invention, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0017] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0018] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0019] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "provided with", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Such as Figure 1-2As shown in the figure, a recyclable thin oil automatic lubrication system for a hot die forging press includes a hydraulic station 1. The hydraulic station 1 is connected to an oil pump 2. The oil pump 2 is respectively connected to the oil inlet channels on the circulating lubricating oil circuit A4, the circulating lubricating oil circuit B5, the circulating lubricating oil circuit C6, and the circulating lubricating oil circuit B7 through an oil inlet circuit 3. The oil outlet channels on the circulating lubricating oil circuit A4, the circulating lubricating oil circuit B5, the circulating lubricating oil circuit C6, and the circulating lubricating oil circuit B7 are respectively connected to an oil return circuit 8. The oil return circuit 8 is connected to the hydraulic station 1. The circulating lubricating oil circuit A4 lubricates the left copper bushing 9 of the frame. The circulating lubricating oil circuit B5 lubricates the left copper bushing 10 of the crank. The circulating lubricating oil circuit C6 lubricates the right copper bushing 11 of the crank. The circulating lubricating oil circuit D7 lubricates the right copper bushing 12 of the frame. By respectively designing circulating lubricating oil circuits for the left copper bushing 9 of the frame, the right copper bushing 12 of the frame, the left copper bushing 10 of the crank, and the right copper bushing 11 of the crank, and then cooperating with the oil supply system to achieve circulating lubrication of the crankshaft 22, an oil film is formed on the stress surface of the crankshaft 22 to take away heat, effectively improving the service life of the copper bushings (i.e., bearing shells), effectively reducing the maintenance cost of the equipment, and extending the service life of the equipment.

[0021] A filter 13, a pilot-operated solenoid relief valve 14, a flowmeter 15, a pressure gauge 16, and a throttle valve 24 are provided on the oil inlet circuit 3. A heat exchanger 17 is provided on the oil return circuit 8.

[0022] The circulating lubricating oil circuit A4 includes an oil inlet channel A401 provided on a support sleeve A19. The oil inlet channel A401 communicates with a lubricating channel A402 provided on the left copper bushing 9 of the frame. An oil collecting groove A403 and an oil outlet channel A404 are also provided on the support sleeve A19. The lubricating channel A402 communicates with the oil collecting groove A403. The oil collecting groove A403 communicates with the oil outlet channel A404. The oil outlet channel A404 is connected to the oil return circuit 8. Sealing rings A405 are respectively provided on both sides of the support sleeve A19. The left copper bushing 9 of the frame is installed on the frame 18 through the support sleeve A19. The crankshaft 22 is installed inside the left copper bushing 9 of the frame. The specific structure of the circulating lubricating channel A4 is given, making full use of the structural characteristics of the support sleeve and the copper bushing to layout the oil circuit, thereby realizing a sufficient self-lubricating cycle.

[0023] The structures of the circulating lubricating oil path B5 and the circulating lubricating oil path C6 are the same. They include an oil inlet passage 501 provided on the connecting rod 21. Lubricating passages 502 are respectively provided in the left crank copper bushing 10 and the right crank copper bushing 11. The oil inlet passage 501 is connected to the lubricating passages 502. The inner ends of the two lubricating passages 502 communicate with an oil collecting groove 503 provided on the connecting rod 21. An oil outlet passage 504 communicating with the oil collecting groove 503 is further provided on the connecting rod 21. The oil outlet passage 504 is connected to the oil return path 8. Sealing rings 505 are respectively provided on both sides of the connecting rod 21. The connecting rod 21 is connected to the crank 23 of the crankshaft 22 through the left crank copper bushing 5 and the right crank copper bushing 6. Giving the specific structures of the circulating lubricating oil path B5 and the circulating lubricating oil path C6 not only makes full use of the structural characteristics of the connecting rod and the copper bushing, but also shares an oil collecting groove 503 to achieve centralized collection and recycling. Since the connecting rod 21 is actually in motion during operation, rotary joints need to be used at the ends of the oil inlet passage 501 and the oil outlet passage 504 to connect with the oil inlet path 3 and the oil return path 8. Rotary joints belong to the prior art and can be directly purchased.

[0024] The circulating lubricating oil path D7 includes an oil inlet passage B701 provided on the support sleeve B20. The oil inlet passage B701 communicates with a lubricating passage B702 provided on the right frame copper bushing 12. An oil collecting groove B703 and an oil outlet passage B704 are further provided on the support sleeve B20. The lubricating passage B702 communicates with the oil collecting groove B703. The oil collecting groove B703 communicates with the oil outlet passage B704. The oil outlet passage B704 is connected to the oil return path 8. Sealing rings B705 are respectively provided on both sides of the support sleeve B20. The right frame copper bushing 12 is installed on the frame 18 through the support sleeve B20. The crankshaft 22 is installed inside the right frame copper bushing 12. Giving the specific structure of the circulating lubricating oil path D7 makes full use of the structural design of the support sleeve and the copper bushing to realize circulating lubrication.

[0025] The above specific embodiments cannot be used to limit the protection scope of the present invention. For those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present invention falls within the protection scope of the present invention.

[0026] The parts not detailed in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. An automatically lubricating system with recyclable thin oil for a hot die forging press, characterized in that, It includes a hydraulic station, which is connected with an oil pump. The oil pump is respectively connected with the inlet oil channels on the circulating lubricating oil circuit A, the circulating lubricating oil circuit B, the circulating lubricating oil circuit C and the circulating lubricating oil circuit B through the inlet oil pipeline. The outlet oil channels on the circulating lubricating oil circuit A, the circulating lubricating oil circuit B, the circulating lubricating oil circuit C and the circulating lubricating oil circuit B are respectively connected with the return oil pipeline. The return oil pipeline is connected with the hydraulic station. The circulating lubricating oil circuit A lubricates the left copper bush of the frame. The circulating lubricating oil circuit B lubricates the left copper bush of the crank. The circulating lubricating oil circuit C lubricates the right copper bush of the crank. The circulating lubricating oil circuit D lubricates the right copper bush of the frame.

2. The recyclable dilute oil automatic lubrication system for a hot die forging press according to claim 1, characterized in that, A filter, a pilot-operated electromagnetic overflow valve, a flowmeter, a pressure gauge and a throttle valve are provided on the inlet oil pipeline. A heat exchanger is provided on the return oil pipeline.

3. An automatically lubricating system for a hot die forging press using recyclable thin oil according to claim 1 or 2, characterized in that, The circulating lubricating oil circuit A includes an inlet oil channel A provided on the support sleeve A. The inlet oil channel A is communicated with a lubricating channel A provided on the left copper bush of the frame. An oil collecting tank A and an outlet oil channel A are further provided on the support sleeve A. The lubricating channel A is communicated with the oil collecting tank A. The oil collecting tank A is communicated with the outlet oil channel A. The outlet oil channel A is connected with the return oil pipeline. Sealing rings A are respectively provided on both sides of the support sleeve A. The left copper bush of the frame is installed on the frame through the support sleeve A. A crankshaft is installed in the left copper bush of the frame.

4. An automatic lubrication system for a hot die forging press using recyclable thin oil according to claim 3, characterized in that, The structures of the circulating lubricating oil circuit B and the circulating lubricating oil circuit C are the same. They include an inlet oil channel provided on the connecting rod. Lubricating channels are respectively provided in the left copper bush of the crank and the right copper bush of the crank. The inlet oil channel is connected with the lubricating channels. The inner ends of the two lubricating channels are communicated with an oil collecting tank provided on the connecting rod. An outlet oil channel communicated with the oil collecting tank is further provided on the connecting rod. The outlet oil channel is connected with the return oil pipeline. Sealing rings are respectively provided on both sides of the connecting rod. The connecting rod is connected with the crank of the crankshaft through the left copper bush of the crank and the right copper bush of the crank.

5. The automatic lubrication system for hot die forging presses using recyclable thin oil according to claim 4, characterized in that, The circulating lubricating oil circuit D includes an inlet oil channel B provided on the support sleeve B. The inlet oil channel B is communicated with a lubricating channel B provided on the right copper bush of the frame. An oil collecting tank B and an outlet oil channel B are further provided on the support sleeve B. The lubricating channel B is communicated with the oil collecting tank B. The oil collecting tank B is communicated with the outlet oil channel B. The outlet oil channel B is connected with the return oil pipeline. Sealing rings B are respectively provided on both sides of the support sleeve B. The right copper bush of the frame is installed on the frame through the support sleeve B. A crankshaft is installed in the right copper bush of the frame.

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