An automatic lubrication system for the gear pair of an electric screw press

Abstract

The present invention relates to an automatic lubrication system for a gear pair of an electric screw press, which includes an oil distributing gear meshed with the gear pair. A positioning seat is rotatably connected to the middle of the oil distributing gear. A guide oil pipe is connected to the middle of the positioning seat. One end of the guide oil pipe away from the positioning seat is connected to an oil storage tank. A guide oil pump is arranged on the guide oil pipe. A first oil passage is opened on one side of the positioning seat close to the gear pair, and the first oil passage is communicated with the guide oil pipe; a first oil distributing passage is opened on each tooth of the oil distributing gear at the same height as the first oil passage, and an oil feeding hole communicated with the first oil distributing passage is opened on the tooth of the oil distributing gear. The present invention replaces the traditional manual lubrication and achieves the effect of automatically lubricating the gear pair.

Description

Technical Field

[0001] The present invention relates to the field of screw presses, and more particularly to an automatic lubrication system for the gear pair of an electric screw press. Background Art

[0002] An electric screw press is a device used in the forging industry. The screw press has the characteristics of great versatility, simple structure, easy adjustment and maintenance, no bottom dead center of the slider, convenient die design, and high forging accuracy. It is suitable for various processes such as precision forging, sizing, coining, embossing, straightening, and leveling. The electric screw press can be used for both hot forging and precision forging and sizing; it can be applied to the pressure welding process of stainless steel double-bottom pots, and can also be used for the precision forging of titanium alloy blades and other blades.

[0003] During the process of gear transmission, vibration is easily caused and noise will be generated. Due to the viscosity of the gear lubricating oil, it can play a role in reducing gear vibration, wear and noise. Therefore, lubrication is crucial.

[0004] The gear transmission system of the electric screw press is located at the top of the machine. In the traditional method of adding lubricating oil, after the electric screw press is shut down, the lubricating oil is manually applied to the gears. The lubricating oil can only be added regularly, resulting in untimely lubrication. This not only causes vibration and wear during the gear transmission process, but may also lead to serious wear of the gear pair. Therefore, providing a lubrication system for adding lubricating oil without shutting down the machine is an urgent problem to be solved. Summary of the Invention

[0005] In order to replace the traditional manual lubrication and achieve the effect of automatically lubricating the gear pair, the present invention provides an automatic lubrication system for the gear pair of an electric screw press.

[0006] The automatic lubrication system for the gear pair of an electric screw press provided by the present invention adopts the following technical solutions:

[0007] An automatic lubrication system for the gear pair of an electric screw press includes an oil distribution gear meshed with the gear pair. A positioning seat is rotatably connected to the middle of the oil distribution gear. A guide oil pipe is connected to the middle of the positioning seat. One end of the guide oil pipe away from the positioning seat is connected to an oil storage tank. A guide oil pump is arranged on the guide oil pipe. A first oil passage is opened on one side of the positioning seat close to the gear pair, and the first oil passage is communicated with the guide oil pipe; a first oil distribution passage is opened on each tooth of the oil distribution gear at the same height as the first oil passage, and an oil injection hole communicated with the first oil distribution passage is opened on the tooth of the oil distribution gear.

[0008] By adopting the above technical solution, when the oil guiding pump works, the lubricating oil in the oil storage tank enters the first oil passage of the positioning seat through the oil guiding pipe. After the tooth of the oil distributing gear meshes with the gear pair, the first oil distributing passage and the first oil passage are communicated, and the lubricating oil enters the first oil distributing passage, and then is applied to the tooth of the gear pair through the oil feeding hole, thus replacing the traditional manual lubrication and achieving the effect of automatically lubricating the gear pair.

[0009] Optionally, a second oil passage is provided on one side of the positioning seat close to the gear pair. The first oil passage and the second oil passage are parallel to each other. The second oil passage is directly below the first oil passage. Each tooth of the oil distributing gear is provided with a second oil distributing passage at the same height as the second oil passage, and the tooth of the oil distributing gear is provided with an oil feeding hole communicated with the second oil distributing passage.

[0010] By adopting the above technical solution, after the oil distributing gear meshes with the gear pair, the lubricating oil in the oil storage tank enters the first oil passage and the second oil passage of the positioning seat through the oil guiding pipe. After the tooth of the oil distributing gear meshes with the gear pair, the first oil distributing passage and the first oil passage are communicated, and the second oil distributing passage and the second oil passage are communicated. The lubricating oil enters the first oil distributing passage and the second oil distributing passage, and then is applied to the tooth of the gear pair through the oil feeding hole, increasing the oil feeding area of the lubricating oil and improving the lubrication effect.

[0011] Optionally, oil feeding holes are provided on both sides of the tooth of the oil distributing gear corresponding to the first oil distributing passage and the second oil distributing passage.

[0012] By adopting the above technical solution, the first oil distributing passage is communicated with two oil feeding holes, and the second oil distributing passage is communicated with two oil feeding holes. The more the number of oil feeding holes, the larger the oil feeding area, increasing the oil feeding area of the lubricating oil and improving the lubrication effect.

[0013] Optionally, an automatic oil discharging mechanism is arranged in both the first oil distributing passage and the second oil distributing passage; a receiving cavity is provided at the tip of the tooth of the oil distributing gear corresponding to the positions of the first oil distributing passage and the second oil distributing passage. The automatic oil discharging mechanism includes a plug block inserted into the oil feeding hole. The position of the receiving cavity close to the oil feeding hole is communicated with the first oil distributing passage, and a driving component for driving the plug block to move towards each other or away from each other to open and close the oil feeding hole is arranged in the receiving cavity.

[0014] By adopting the above technical solution, the driving component drives the plug block to move towards each other, so that the oil feeding hole is communicated with the first oil distributing passage, and the lubricating oil flows out through the first oil distributing passage and the oil feeding hole, and then the lubricating oil is applied to the gear pair.

[0015] Optionally, the driving assembly includes a slider slidably connected in the accommodation cavity. One end of the slider extends out of the teeth of the oil distribution gear through the accommodation cavity. A push block is fixedly provided at the other end of the slider. The push block is arranged perpendicular to the slider. A return spring is fixedly connected to the end of the push block away from the slider, and the return spring is fixedly connected to the inner wall of the accommodation cavity of the oil distribution gear.

[0016] By adopting the above technical solution, the tension of the return spring pushes the push block and the slider to move outwards from the teeth. The guiding surface of the push block pushes the blocking block to move outwards from the upper oil hole, thereby blocking the upper oil hole. At the same time, the limiting block on the blocking block compresses the pressing spring to prevent the lubricating oil from flowing out of the teeth. When the teeth of the oil distribution gear are engaged in the tooth gap of the gear pair, the gear pair pushes the slider, and the slider pushes the blocking block to move towards the direction of the return spring. The pressure of the blocking block on the blocking block disappears, and the two blocking blocks move towards each other to connect the accommodation cavity and the first oil distribution channel. The lubricating oil flows out through the first oil distribution channel, the accommodation cavity and the upper oil hole and is applied to the gear pair, completing the automatic lubrication of the gear pair.

[0017] Optionally, limiting blocks are fixedly provided on both sides of the blocking block close to the push block. Pressing springs are fixedly provided on the limiting blocks, and the ends of the pressing springs away from the limiting blocks are fixedly provided on the inner wall of the first oil distribution channel.

[0018] By adopting the above technical solution, after the pressure of the blocking block on the blocking block disappears, the tension of the pressing spring makes the blocking block automatically move towards the push block, thereby automatically connecting the accommodation cavity and the first oil distribution channel.

[0019] Optionally, an inclined surface is provided on one side of the blocking block close to the push block, and guiding surfaces matching the inclined surface are provided at both ends of the push block.

[0020] By adopting the above technical solution, the inclined surface is matched with the guiding surface to make the cooperation between the push block and the blocking block closer.

[0021] Optionally, heating mechanisms are arranged in both the first oil distribution channel and the second oil distribution channel; the heating mechanism includes heating plates fixedly arranged in the first oil distribution channel and the second oil distribution channel. Two groups of heating components are evenly arranged along the circumferential direction of the positioning seat, and each group of heating components corresponds to the heating plates in the first oil distribution channel and the second heating channel respectively.

[0022] By adopting the above technical solution, after the equipment stops running, the heating components are in contact with the heating plates in the first oil distribution channel and the second oil distribution channel, and the heating plates are powered on. After the heating plates are powered on, they emit heat, thereby preventing the lubricating oil in the first oil distribution channel from condensing.

[0023] Optionally, a heating cavity is formed along the circumferential direction on the outer side wall of the positioning seat. The heating cavity extends inwards from the outer side wall of the positioning seat. The heating component includes a conductive spring fixedly arranged in the heating cavity. One end of the conductive spring is fixedly connected to the inner wall of the heating cavity, and the other end is fixedly connected to a conductive column, wherein the positioning seat is conductive.

[0024] By adopting the above technical solution, after shutdown, the tension of the conductive spring pushes the conductive column to extend into the first oil distribution channel and abut against the heating plate. After power is supplied to the positioning seat, the conductive column supplies power to the heating plate, and the heating plate generates heat after being powered on, thereby preventing the lubricating oil in the first oil distribution channel from condensing. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0026] Figure 2 It is a cross-sectional view of the embodiment.

[0027] Figure 3 It is Figure 2 An enlarged view of part A of

[0028] Figure 4 It is a cross-sectional view of the gear pair and the oil distribution gear meshing.

[0029] Figure 5 It is Figure 4 An enlarged view of part B of

[0030] Figure 6 It is a schematic diagram made to highlight the automatic oil discharging mechanism.

[0031] Figure 7 It is Figure 2 An enlarged view of part C of

[0032] Description of the reference numerals: 1, gear pair; 2, oil distribution gear; 21, bearing; 22, first oil distribution channel; 22, second oil distribution channel; 24, oil filling hole; 25, automatic oil discharging mechanism; 251, slider; 252, push block; 253, guiding surface; 254, return spring; 255, plug; 2551, limiting block; 256, pressing spring; 257, inclined surface; 26, accommodating cavity; 27, heating mechanism; 271, heating plate; 272, heating assembly; 2721, heating cavity; 2722, conductive spring; 2723, conductive column; 3, positioning seat; 31, first oil passage; 32, second oil passage; 33, oil storage cavity; 4, oil guide pipe; 41, oil guide pump; 5, oil storage tank. Detailed Description of the Embodiment

[0033] The following will further describe the present invention in detail with reference to the attached Figure 1-7 drawings.

[0034] The embodiment of the present invention discloses an automatic lubrication system for a gear pair of an electric screw press. Refer to Figure 1, An automatic lubrication system for the gear pair 1 of an electric screw press includes an oil distributing gear 2. The oil distributing gear 2 meshes with the gear pair 1. The middle part of the oil distributing gear 2 is hollow. A positioning seat 3 is rotatably connected to the middle part of the oil distributing gear 2. A bearing 21 is fixedly provided at the top of the positioning seat 3. A guide oil pipe 4 is fixedly connected to the middle part of the positioning seat 3. One side of the guide oil pipe 4 away from the positioning seat 3 is connected to an oil storage tank 5. A guide oil pump 41 is provided on the guide oil pipe 4. When the guide oil pump 41 works, the oil in the oil storage tank 5 enters the guide oil pipe 4 through the guide oil pipe 4, and the oil in the guide oil pipe 4 is applied to the gear pair 1 through the oil distributing gear 2 to lubricate the gear pair 1.

[0035] Refer to Figure 2 and Figure 3 , A first oil passage 31 and a second oil passage 32 are provided on one side of the positioning seat 3 close to the gear pair 1. The first oil passage 31 and the second oil passage 32 are parallel to each other. The first oil passage 31 is located directly above the second oil passage 32. Both the first oil passage 31 and the second oil passage 32 are communicated with the guide oil pipe 4. An oil storage cavity 33 is provided on the side wall of the positioning seat 3. The oil storage cavity 33 communicates the first oil passage 31 and the second oil passage 32. The lubricating oil in the guide oil pipe 4 can enter the oil storage cavity 33 through the first oil passage 31 and the second oil passage 32.

[0036] Each tooth of the oil distributing gear 2 is provided with a first oil distribution channel 22 and a second oil distribution channel 22. The first oil distribution channel 22 and the first oil passage 31 are in the same horizontal plane. The second oil distribution channel 22 and the second oil passage 32 are in the same horizontal plane respectively. The first oil distribution channel 22 and the second oil distribution channel 22 penetrate from the side of the oil distributing gear 2 close to the positioning seat 3. When the first oil distribution channel 22 and the second oil distribution channel 22 rotate to the position of the oil storage cavity 33, the lubricating oil in the oil storage cavity 33 can automatically enter the first oil distribution channel 22 and the second oil distribution channel 22.

[0037] Refer to Figure 4 and Figure 5 , Oil holes 24 are provided on both sides of the tooth of the oil distributing gear 2 corresponding to the first oil distribution channel 22 and the second oil distribution channel 22. The oil holes 24 are symmetrically arranged relative to the tooth. The oil holes 24 are communicated with the first oil distribution channel 22 and the second oil distribution channel 22. When the tooth of the oil distributing gear 2 meshes with the gear pair 1, at this time, the first oil distribution channel 22, the oil storage cavity 33 and the first oil passage 31 are communicated, and the second oil distribution channel 22, the oil storage cavity 33 and the second oil passage 32 are communicated. The lubricating oil enters the first oil distribution channel 22 and the second oil distribution channel 22, and then flows out to the tooth of the gear pair 1 through the oil holes 24 to realize automatic lubrication.

[0038] Refer to Figure 5 and Figure 6, there is residual lubricating oil in the first oil distribution channel 22 and the second oil distribution channel 22 of the tooth that is separated from the gear pair 1. The lubricating oil is likely to flow out through the oil supply hole 24, which not only causes waste of the lubricating oil but also is not convenient for cleaning. To prevent the residual lubricating oil from flowing out, an automatic oil discharging mechanism 25 is provided in both the first oil distribution channel 22 and the second oil distribution channel 22. Here, only the automatic oil discharging mechanism 25 in the first oil distribution channel 22 is taken as an example. A receiving cavity 26 is opened at the tip of the tooth of the oil distribution gear 2 corresponding to the positions of the first oil distribution channel 22 and the second oil distribution channel 22. The automatic oil discharging mechanism 25 includes a slider 251 slidably connected in the receiving cavity 26. One end of the slider 251 extends out of the tooth of the oil distribution gear 2 through the receiving cavity 26. A push block 252 is fixedly provided at the other end of the slider 251. The push block 252 is arranged perpendicular to the slider 251. Both the push block 252 and the slider 251 are arranged in the receiving cavity 26. A return spring 254 is fixedly connected to the end of the push block 252 away from the slider 251. The return spring 254 is fixedly connected to the inner wall of the receiving cavity 26 of the oil distribution gear 2; Plug blocks 255 are provided at both ends of the push block 252. The plug blocks 255 are located in the receiving cavity 26 and the ends of the plug blocks 255 are inserted into the oil supply hole 24. The position of the receiving cavity 26 close to the oil supply hole 24 is communicated with the first oil distribution channel 22. The plug blocks 255 block the connection between the receiving cavity 26 and the first oil distribution channel 22. An inclined surface 257 is opened on the side of the plug block 255 close to the push block 252. Guide surfaces 253 cooperating with the inclined surface 257 are opened at both ends of the push block 252; Limiting blocks 2551 are fixedly provided on both sides of the plug block 255 close to the push block 252. A compression spring 256 is fixedly provided on the limiting blocks 2551. The end of the compression spring 256 away from the limiting blocks 2551 is fixedly provided on the inner wall of the first oil distribution channel 22.

[0039] The tension of the return spring 254 pushes the push block 252 and the slider 251 to move outwards from the tooth. The guide surface 253 of the push block 252 pushes the plug block 255 to move outwards from the oil supply hole 24 to block the oil supply hole 24. At the same time, the limiting block 2551 on the plug block 255 compresses the compression spring 256 to prevent the lubricating oil from flowing out of the tooth; When the tooth of the oil distribution gear 2 meshes in the tooth gap of the gear pair 1, the gear pair 1 pushes the slider 251, and the slider 251 pushes the block to move in the direction of the return spring 254. The pressure of the block on the plug block 255 disappears. The tension of the compression spring 256 pushes the two plug blocks 255 to move towards each other to connect the receiving cavity 26 and the first oil distribution channel 22. The lubricating oil flows out through the first oil distribution channel 22, the receiving cavity 26 and the oil supply hole 24 and is applied to the gear pair 1 to complete the automatic lubrication of the gear pair 1.

[0040] Refer to Figure 2 and Figure 7, in the cold winter, after the equipment stops running, the lubricating oil remaining in the first oil distribution channel 22 and the second oil distribution channel 22 of the tooth is prone to condensation at low temperatures. To prevent the lubricating oil from condensing, heating mechanisms 27 are provided in both the first oil distribution channel 22 and the second oil distribution channel 22. Here, only the heating mechanism 27 in the first oil distribution channel 22 is taken as an example. The heating mechanism 27 includes a heating plate 271 fixedly arranged in the first oil distribution channel 22. The positioning seat 3 is evenly provided with heating components 272 along its circumferential direction. The heating components 272 correspond to the heating plate 271 in the first oil distribution channel 22 one by one. After the equipment stops running, the heating components 272 are in contact with the heating plate 271 in the first oil distribution channel 22, and the heating plate 271 is powered on. After the heating plate 271 is powered on, it emits heat, thereby preventing the lubricating oil in the first oil distribution channel 22 from condensing.

[0041] A heating cavity 2721 is formed along the circumferential direction on the outer side wall of the positioning seat 3. The heating cavity 2721 extends inward from the outer side wall of the positioning seat 3. The heating component 272 includes a conductive spring 2722 fixedly arranged in the heating cavity 2721. One end of the conductive spring 2722 is fixedly connected to the inner wall of the heating cavity 2721, and the other end is fixedly connected with a conductive column 2723, wherein the positioning seat 3 is conductive; after stopping, the tension of the conductive spring 2722 pushes the conductive column 2723 to extend into the first oil distribution channel 22 and be in contact with the heating plate 271. After the positioning seat 3 is powered on, the conductive column 2723 powers on the heating plate 271. After the heating plate 271 is powered on, it emits heat, thereby preventing the lubricating oil in the first oil distribution channel 22 from condensing.

[0042] The implementation principle of the automatic lubrication system of the gear pair 1 of the electric screw press in the embodiment of the present invention is as follows: The oil guiding pump 41 works, so that the lubricating oil in the oil storage tank 5 enters the positioning seat 3 through the oil guiding pipe 4, and then enters the oil storage cavity 33 through the first oil passage 31 and the second oil passage 32. The first oil distribution channel 22, the oil storage cavity 33 and the first oil passage 31 are communicated, and the second oil distribution channel 22, the oil storage cavity 33 and the second oil passage 32 are communicated. The lubricating oil enters the first oil distribution channel 22 and the second oil distribution channel 22; when the teeth of the oil distribution gear 2 are engaged in the tooth gaps of the gear pair 1, the gear pair 1 pushes the slider 251, and the slider 251 pushes the block towards the direction of the return spring 254. The pressure of the block on the plug 255 disappears, and the tension of the compression spring 256 pushes the two plugs 255 to move towards each other, connecting the accommodating cavity 26 and the first oil distribution channel 22. The lubricating oil flows out through the first oil distribution channel 22, the accommodating cavity 26 and the oiling hole 24 and is applied to the gear pair 1, completing the automatic lubrication of the gear pair 1.

[0043] In winter, after the electric screw press stops running, power is supplied to the positioning seat 3. The tension of the conductive spring 2722 pushes the conductive column 2723 to extend into the first oil distribution channel 22 and abut against the heating plate 271. The conductive column 2723 supplies power to the heating plate 271, and the heating plate 271 emits heat after being powered on, thereby preventing the lubricating oil in the first oil distribution channel 22 and the second oil distribution channel 23 from condensing.

[0044] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An automatic lubrication system for a gear pair of an electric screw press, characterized in that: It includes an oil distribution gear (2) meshed with the gear pair (1). A positioning seat (3) is rotatably connected to the middle of the oil distribution gear (2). A guide oil pipe (4) is connected to the middle of the positioning seat (3). One end of the guide oil pipe (4) far from the positioning seat (3) is connected to an oil storage tank (5). A guide oil pump (41) is arranged on the guide oil pipe (4). A first oil passage (31) is opened on one side of the positioning seat (3) close to the gear pair (1), and the first oil passage (31) is communicated with the guide oil pipe (4); Each tooth of the oil distribution gear (2) is provided with a first oil distribution passage (22) arranged at the same height as the first oil passage (31), and an oil injection hole (24) communicated with the first oil distribution passage (22) is opened on the tooth of the oil distribution gear (2); An automatic oil outlet mechanism (25) is arranged in the first oil distribution passage (22); A receiving cavity (26) is opened at the tip of the tooth of the oil distribution gear (2) corresponding to the position of the first oil distribution passage (22). The automatic oil outlet mechanism (25) includes a plug block (255) inserted into the oil injection hole (24). The position of the receiving cavity (26) close to the oil injection hole (24) is communicated with the first oil distribution passage (22). A driving component is arranged in the receiving cavity (26) to drive the plug block (255) to move towards or away from each other to realize the opening and closing of the oil injection hole (24); The driving component includes a slider (251) slidably connected in the receiving cavity (26). One end of the slider (251) extends out of the tooth of the oil distribution gear (2) through the receiving cavity (26). A push block (252) is fixedly arranged at the other end of the slider (251). The push block (252) is arranged perpendicular to the slider (251). A return spring (254) is fixedly connected to the end of the push block (252) far from the slider (251), and the return spring (254) is fixedly connected to the inner wall of the receiving cavity (26) of the oil distribution gear (2); Limit blocks (2551) are fixedly arranged on both sides of the plug block (255) close to the push block (252). A pressing spring (256) is fixedly arranged on the limit block (2551), and one end of the pressing spring (256) far from the limit block (2551) is fixedly arranged on the inner wall of the first oil distribution passage (22); An inclined surface (257) is opened on one side of the plug block (255) close to the push block (252), and guiding surfaces (253) matched with the inclined surface (257) are opened at both ends of the push block (252).

2. The automatic lubrication system for the gear pair of an electric screw press according to claim 1, wherein: A second oil passage (32) is opened on one side of the positioning seat (3) close to the gear pair (1). The first oil passage (31) and the second oil passage (32) are parallel to each other. The second oil passage (32) is located directly below the first oil passage (31). Each tooth of the oil distribution gear (2) is provided with a second oil distribution passage (23) arranged at the same height as the second oil passage (32), and an oil injection hole (24) communicated with the second oil distribution passage (23) is opened on the tooth of the oil distribution gear (2).

3. An automatic lubrication system for the gear pair of an electric screw press according to claim 2, characterized in that: The teeth of the oil distribution gear (2) are provided with upper oil holes (24) on both sides corresponding to the first oil distribution channel (22) and the second oil distribution channel (23).

4. An automatic lubrication system for a gear pair of an electric screw press according to claim 2, wherein: Heating mechanisms (27) are arranged in both the first oil distribution channel (22) and the second oil distribution channel (23); The heating mechanism (27) includes a heating plate (271) fixed in the first oil distribution channel (22) and the second oil distribution channel (23). Two groups of heating components (272) are evenly arranged along the circumferential direction of the positioning seat (3). Each group of heating components (272) corresponds to the heating plate (271) in the first oil distribution channel (22) and the second heating channel respectively.

5. An automatic lubrication system for a gear pair of an electric screw press according to claim 4, characterized in that: A heating cavity (2721) is arranged on the outer side wall of the positioning seat (3) along its circumferential direction. The heating cavity (2721) extends inward from the outer side wall of the positioning seat (3). The heating component (272) includes a conductive spring (2722) fixed in the heating cavity (2721). One end of the conductive spring (2722) is fixedly connected to the inner wall of the heating cavity (2721), and the other end is fixedly connected with a conductive column (2723), wherein the positioning seat (3) is conductive.

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