Oil injection structure of screw press

Abstract

The utility model relates to the field of screw presses, in particular to a screw press oil injection structure which comprises a frame. The screw rod is rotationally connected to the frame body; the friction disc is coaxially and fixedly connected with the screw rod; the flywheel is coaxially and rotatably connected to the screw rod and the frame body; the oil injection seat is connected with the frame body, the screw rod is sleeved with the oil injection seat, and the oil injection seat is located between the flywheel and the screw rod; a first mounting groove is formed in the top of the oiling seat, a first bearing is mounted in the first mounting groove, and the oiling seat is rotationally connected with the friction disc through the first bearing; a second mounting groove is formed in the outer circumference of the oiling seat, a second bearing is mounted in the second mounting groove, and the oiling seat is rotationally connected with the flywheel through the second bearing; the oil injection base is provided with an oil injection channel, the oil injection channel communicates with a plurality of oil injection branches, and the multiple oil injection branches communicate with the first mounting groove and the second mounting groove correspondingly. The screw press has the effect of improving lubrication of the bearing of the screw press.

Description

Technical Field

[0001] The present application relates to the field of screw presses, and in particular to an oil injection structure for a screw press. Background Art

[0002] A screw press is a forging machine that uses a screw and a nut as a transmission mechanism and relies on screw transmission to convert the forward and reverse rotational motion of the flywheel into the up and down reciprocating motion of the slider.

[0003] In the existing clutch screw press, the motor drives the flywheel to rotate, and the screw is provided with a friction disk. The flywheel and the friction disk can be moved synchronously or separately by adjusting the pressure of the clutch cylinder. When the pressure of the clutch cylinder increases, the flywheel and the friction disk rotate synchronously through the friction of the friction block, and the screw rotates to move the slider downward. After the slider hits the workpiece, the flywheel and the friction disk separate, and the flywheel continues to rotate, thereby reducing the energy consumption of the flywheel during start-stop. In order to ensure the independent operation of the screw, the friction disk and the flywheel, multiple sets of deep groove ball bearings and a set of plane thrust bearings are arranged between the flywheel and the screw, and a set of tapered roller bearings are arranged between the friction disk and the flywheel, so as to reduce the friction between the flywheel and the screw, and between the friction disk and the flywheel. At present, it is generally adopted to open an oil injection channel obliquely upward at the bottom position of the flywheel corresponding to the multiple sets of bearings, and use this channel to inject oil into the multiple sets of bearings to ensure the lubrication of the multiple sets of bearings.

[0004] With respect to the above-mentioned related technologies, when multiple groups of bearings are not in the same vertical position, it is difficult for the oil injection channel located outside the bearing to inject oil into the bearing near the center position, resulting in poor lubrication effect of the screw press. Utility Model Content

[0005] In order to ensure that multiple groups of bearings in a screw press all obtain sufficient lubrication effect, the present application provides an oil injection structure for a screw press.

[0006] The present application provides a screw press oil injection structure adopts the following technical solution:

[0007] A screw press oil injection structure includes a frame;

[0008] A screw rod, the screw rod being rotatably connected to the frame;

[0009] A friction disc, the friction disc is fixedly connected to the screw coaxially;

[0010] A flywheel, the flywheel is coaxially rotatably connected to the screw rod and the frame;

[0011] An oil filling seat, the oil filling seat is connected to the frame, the screw rod is sleeved on the oil filling seat, and the oil filling seat is located between the flywheel and the screw rod;

[0012] A first mounting groove is formed on the top of the oil filling seat, a first bearing is mounted in the first mounting groove, and the oil filling seat is rotatably connected to the friction disc via the first bearing;

[0013] The outer circumference of the oil filling seat is provided with a second mounting groove, a second bearing is mounted in the second mounting groove, and the oil filling seat is rotatably connected to the flywheel via the second bearing;

[0014] The oil filling seat is provided with an oil filling channel, the oil filling channel is connected with a plurality of oil filling branches, and the plurality of oil filling branches are respectively connected with the first mounting groove and the second mounting groove.

[0015] By adopting the above technical solution, the lubricating oil can accurately enter each bearing position through the oil filling channel and the oil filling branch in the oil filling seat, thereby fully lubricating each bearing, reducing friction and wear between mechanical parts, and thus improving the working efficiency and life of the screw press.

[0016] Optionally, an annular baffle is provided at the top of the second mounting groove, the baffle is connected to the flywheel via bolts, and the baffle seals the top opening of the second mounting groove.

[0017] By adopting the above technical solution, the main function of the baffle is to prevent the lubricating oil from splashing out from the second mounting groove, and at the same time prevent dust, debris, etc. from entering the lubrication system to ensure the normal operation of the press. In addition, the baffle also serves as a limit for the second bearing to prevent the second bearing from shifting.

[0018] Optionally, the flywheel is provided with an annular oil collecting groove at the outer edge corresponding to the baffle, the inner diameter of the oil collecting groove is larger than the outer diameter of the baffle, the oil collecting groove is connected with an oil guide pipe, and the oil guide pipe extends downward to the bottom of the flywheel.

[0019] By adopting the above technical solution, the oil collecting tank can collect the lubricating oil that penetrates from the baffle. When the flywheel rotates at high speed, the lubricating oil may splash outward through the baffle. If the sealing performance of the baffle is not good, the lubricating oil will seep out from the baffle. The oil collecting tank is used to collect the leaked lubricating oil and prevent it from flowing everywhere. At the same time, the lubricating oil collected in the oil collecting tank can be discharged through the oil inlet pipe for recycling and reuse. In addition, if the lubricating oil flows out of the oil inlet pipe, it means that the sealing performance of the baffle has deteriorated, which can remind the staff to inspect and maintain the press in time.

[0020] Optionally, a gap communicating with the second mounting groove is provided at the position where the second bearing is connected with the baffle and the flywheel.

[0021] By adopting the above technical solution, the lubricating oil enters the inner core of the second bearing through the gap, which plays a role in fully lubricating the bearing and improving the life and operating efficiency of the bearing. At the same time, when the flywheel rotates, the opening of the gap can avoid friction between the baffle, the flywheel and the inner ring of the second bearing, thereby ensuring that the flywheel can rotate normally.

[0022] Optionally, the frame body is provided with a third mounting groove, a third bearing is installed in the third mounting groove, the bottom of the flywheel is rotatably connected to the frame body through the third bearing; the second mounting groove is connected to the third mounting groove.

[0023] By adopting the above technical solution, the second mounting groove is connected to the third mounting groove so that a lubricating oil channel is formed between the two mounting grooves. Through the connection between the second mounting groove and the third mounting groove, the lubricating oil can flow freely from one mounting groove to another mounting groove, thereby realizing the transfer and circulation of the lubricating oil. This is conducive to ensuring sufficient lubrication of related components, reducing friction and wear, and improving the reliability and service life of the equipment.

[0024] Optionally, the frame is provided with a recovery groove, the recovery groove is connected to the third installation groove, the recovery groove is connected to a collection pipe, and the collection pipe is connected to one side of the frame.

[0025] By adopting the above technical solution, the recovery tank and the collection pipe can avoid the leakage of lubricating oil and reduce the pollution to the environment. At the same time, the recovered lubricating oil can be reused, which helps to save resources, improve the utilization rate of lubricating oil, and conform to the concept of sustainable development. Secondly, the setting of the recovery tank and the collection pipe helps to maintain the cleanliness of the equipment, avoid the lubricating oil remaining on the surface of the machine or the surrounding environment, and keep the production environment clean and safe.

[0026] Optionally, a copper sleeve is provided inside the oil filling seat, and the copper sleeve is sleeved on the outside of the screw.

[0027] By adopting the above technical solution, the copper sleeve can provide a smooth surface, reduce the friction between the oil filling seat and the screw, thereby extending the service life of the oil filling seat and the screw, reducing the resistance when the screw rotates, and effectively reducing the friction between the oil filling seat and the screw.

[0028] Optionally, a plurality of the second bearings are provided, and the plurality of second bearings are arranged vertically, and an annular limiting ring is provided between every two second bearings, and the limiting ring can limit the distance between two adjacent bearings.

[0029] By adopting the above technical solution, by limiting the size and position of the limit ring, it can be ensured that the distance between two adjacent second bearings is always kept within the design range. This can avoid the displacement of the second bearing that contacts first due to factors such as friction when installing the oil filling seat, thereby ensuring the stability and accuracy of the entire structure.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. Through the oil injection channel and oil injection branch in the oil injection structure, the lubricating oil can accurately enter each bearing position, play a full lubrication role, reduce the friction and wear between mechanical parts, and improve the working efficiency and life of the screw press;

[0032] 2. By setting the limit ring and the fixed position of the second bearing, it is ensured that the second bearing will not shift when the oil filling seat is installed, the installation accuracy and stability are guaranteed, and the running stability and working accuracy of the screw press are improved;

[0033] 3. Through the design of the oil collecting tank and the oil guide pipe, the lubricating oil seeping from the baffle is collected and discharged through the oil guide pipe to realize the recovery and reuse of the lubricating oil, improve resource utilization efficiency and reduce environmental pollution. At the same time, the setting of the recovery tank can also recycle and reuse the lubricating oil, further improving economic benefits and environmental friendliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a cross-sectional view of an oil injection structure of a screw press according to an embodiment of the present application.

[0035] Figure 2 yes Figure 1 Enlarged view of part A.

[0036] Explanation of the accompanying drawings: 1. frame; 2. screw; 3. friction plate; 4. flywheel; 5. oil filling seat; 51. copper sleeve; 52. oil filling channel; 521. oil filling branch; 6. first mounting groove; 61. first bearing; 62. second mounting groove; 63. second bearing; 631. limiting ring; 64. third mounting groove; 65. third bearing; 7. baffle; 71. gap; 8. oil collecting tank; 81. oil guide pipe; 9. recovery tank; 91. collecting pipe. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-2 This application is described in further detail.

[0038] The present application embodiment discloses a screw press oil injection structure. Figure 1A screw press oil injection structure includes a frame 1 and a screw 2 rotatably connected to the frame 1, the screw 2 is coaxially fixed with a friction disc 3, a flywheel 4 is coaxially arranged at the bottom of the friction disc 3, the flywheel 4 is rotatably connected to the screw 2 and the frame 1, and the flywheel 4 and the friction disc 3 can rotate independently or synchronously. The frame 1 is fixedly connected with an annular oil injection seat 5 by bolts, the oil injection seat 5 is coaxially sleeved between the screw 2 and the flywheel 4, the top of the oil injection seat 5 is connected to the bottom of the friction disc 3, the outer wall of the oil injection seat 5 is connected to the inner wall of the flywheel 4, the bottom of the flywheel 4 is connected to the frame 1, and the frame 1 is used to bear the weight of the entire flywheel 4.

[0039] Reference Figure 2 A first mounting groove 6 is provided at the top of the oil filling seat 5 at the position corresponding to the friction disc 3. A first bearing 61 is installed in the first mounting groove 6. The first bearing 61 is a tapered roller bearing. The oil filling seat 5 is rotatably connected to the friction disc 3 through the first bearing 61. A second mounting groove 62 is provided at the side wall of the oil filling seat 5 at the position corresponding to the flywheel 4. Two sets of second bearings 63 are installed in the second mounting groove 62. The second bearings 63 are deep groove ball bearings. The oil filling seat 5 is rotatably connected to the flywheel 4 through the second bearings 63. A third mounting groove 64 is provided at the bottom of the frame 1 at the position corresponding to the flywheel 4. The third mounting groove 64 is connected to the second mounting groove 62. A third bearing 65 is installed in the third mounting groove 64. The third bearing 65 is a plane thrust bearing. The flywheel 4 is rotatably connected to the frame 1 through the third bearing 65.

[0040] Further, see Figure 2 , a connecting groove (not marked in the figure) is coaxially provided on the inner wall of the oil filling seat 5, a copper sleeve 51 is coaxially installed in the connecting groove, the copper sleeve 51 is sleeved on the outside of the screw 2, and the bottom of the connecting groove is not connected to the bottom of the oil filling seat 5. When the flywheel 4 rotates, the oil filling seat 5 and the copper sleeve 51 do not rotate, the flywheel 4 rotates relative to the copper sleeve 51, and a gap is generated between the flywheel 4 and the copper sleeve 51 due to the relative rotation. The first connecting groove is connected to the gap, and the lubricating oil in the first connecting groove can enter the gap between the copper sleeve 51 and the flywheel 4 to play a lubricating role. At the same time, when the copper sleeve 51 and the oil filling seat 5 are installed, the connecting groove of the oil filling seat 5 can push the copper sleeve 51 to connect the copper sleeve 51 with the screw 2.

[0041] Reference Figure 2 The oiling seat 5 is provided with a plurality of oiling channels 52, and the plurality of oiling channels 52 are evenly distributed around the axis of the screw 2. The oiling channel 52 is divided into a vertical part and a horizontal part, and the vertical part is connected to the horizontal part. The vertical part is located between the first mounting groove 6 and the second mounting groove 62, and the vertical part is connected to a plurality of oiling branches 521, and the plurality of oiling branches 521 are respectively connected to the first mounting groove 6 and the second mounting groove 62. The horizontal part is connected to the vertical part at the bottom of the vertical part, and the horizontal part extends away from the axis of the screw 2, passes through the frame 1 and is connected to the outside, forming an oiling port.

[0042] Reference Figure 2 An annular baffle 7 is provided at the top of the flywheel 4 at a position corresponding to the second mounting groove 62. The baffle 7 is connected to the flywheel 4 by bolts. The baffle 7 is covered at the top of the second mounting groove 62. The bottom of the baffle 7 is tightly in contact with the flywheel 4 through an O-shaped sealing ring. The inner side wall of the baffle 7 is tightly in contact with the outer side wall of the oil filling seat 5 through an O-shaped sealing ring, thereby sealing the top opening of the second mounting groove 62.

[0043] Further, see Figure 2 , two second bearings 63 are arranged vertically in the second installation groove 62, the second bearing 63 located at the top contacts the bottom of the baffle 7, and the second bearing 63 located at the bottom contacts the bottom of the second installation groove 62, and an annular limiting ring 631 is arranged between the two second bearings 63, and the two ends of the limiting ring 631 are respectively in contact with the two second bearings 63 to limit the distance between the two bearings, thereby achieving the fixation of the positions of the two second bearings 63. When installing the oil filling seat 5, the oil filling seat 5 first contacts one of the second bearings 63, and the friction between the two may cause the second bearing 63 that contacts first to shift, and the setting of the limiting ring 631 can prevent the second bearing 63 from shifting, thereby ensuring the installation accuracy.

[0044] Further, see Figure 2 The outer ring of the second bearing 63 located at the top contacts with the baffle 7, and a gap 71 communicating with the second mounting groove 62 is provided at the position of the baffle 7 corresponding to the inner ring. The outer ring of the second bearing 63 located at the bottom contacts with the flywheel 4, and a gap 71 communicating with the second mounting groove 62 is also provided at the position of the flywheel 4 corresponding to the inner ring. Each gap 71 is connected with the oil injection channel 52 through the oil injection branch 521, so that the lubricating oil in the oil injection channel 52 can enter the inner core position of the second bearing 63 through the gap 71 to lubricate the second bearing 63. At the same time, when the flywheel 4 rotates, the opening of the gap 71 prevents the baffle 7 and the flywheel 4 from contacting with the inner ring of the second bearing 63, avoiding friction between the baffle 7, the flywheel 4 and the inner ring of the second bearing 63, thereby ensuring the smooth rotation of the flywheel 4.

[0045] Further, see Figure 2 An annular oil collecting groove 8 is coaxially provided on the top of the flywheel 4. The diameter of the oil collecting groove 8 is larger than the outer diameter of the baffle 7. The oil collecting groove 8 is used to collect the lubricating oil that penetrates from the baffle 7. The lubricating oil in the first mounting groove 6 may splash outward through the baffle 7 due to the high-speed rotation of the flywheel 4. If the sealing performance of the baffle 7 deteriorates, the lubricating oil will seep out from the position of the baffle 7. The oil collecting groove 8 can prevent most of the lubricating oil from flowing everywhere.

[0046] Further, see Figure 2The bottom of the oil collecting tank 8 is connected to an oil inlet pipe 81, which extends downward to the bottom of the flywheel 4. The lubricating oil collected in the oil collecting tank 8 can be discharged through the oil inlet pipe 81, so as to recover the lubricating oil. At the same time, if lubricating oil flows out of the oil inlet pipe 81, it means that the sealing performance of the baffle 7 is deteriorated, thereby reminding the staff to maintain the press in time.

[0047] Further, see Figure 2 The frame 1 is coaxially connected to a ring-shaped recovery groove 9 at the position corresponding to the third installation groove 64. The recovery groove 9 is located outside the third installation groove 64. The side wall of the recovery groove 9 is connected to a collection pipe 91. The collection pipe 91 extends out of the side wall of the frame 1, so that the recovery groove 9 is connected to the outside. The lubricating oil can be recycled and reused through the collection pipe 91. A plug is provided at one end of the oil introduction pipe 81 and the collection pipe 91 that is connected to the outside. When the lubricating oil needs to be collected, the plug can be opened to collect the lubricating oil.

[0048] The implementation principle of the oil injection structure of a screw press in the embodiment of the present application is as follows: when the screw press is working, the lubricating oil is injected from the oil injection port, and the lubricating oil enters the first mounting groove 6 and the second mounting groove 62 from bottom to top through each oil injection branch 521 in the oil injection channel 52, and the lubricating oil lubricates the first bearing 61 in the first mounting groove 6, and at the same time, the lubricating oil flows into the gap between the copper sleeve 51 and the screw 2 through the first mounting groove 6 to lubricate the copper sleeve 51 to reduce the rotation resistance of the screw 2. The lubricating oil fully lubricates the two second bearings 63 in the second mounting groove 62, and at the same time, the lubricating oil flows into the third mounting groove 64 through the second mounting groove 62 under the action of gravity to lubricate the third bearing 65, thereby achieving the effect of fully lubricating multiple bearings. Excess lubricating oil is recovered through the recovery groove 9 connected to the third bearing 65. When the sealing performance of the baffle 7 deteriorates, the lubricating oil may seep out from the position of the baffle 7 due to the centrifugal force of the flywheel 4 when it rotates at a high speed, and the seeped lubricating oil is collected in the oil collecting tank 8 and flows out from the oil inlet pipe 81. When the lubricating oil flows out of the oil inlet pipe 81, it indicates that the sealing performance of the baffle 7 deteriorates, thereby reminding the staff to maintain the press in time.

[0049] The embodiments of the present application have the effect of enabling multiple groups of bearings in a screw press to be fully lubricated.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screw press oil injection structure, characterized in that: include: Frame (1); A screw rod (2), the screw rod (2) being rotatably connected to the frame (1); A friction disc (3), wherein the friction disc (3) is coaxially fixedly connected to the screw rod (2); A flywheel (4), the flywheel (4) being coaxially rotatably connected to the screw rod (2) and the frame (1); An oil filling seat (5), the oil filling seat (5) is connected to the frame (1), the oil filling seat (5) is sleeved with the screw (2), and the oil filling seat (5) is located between the flywheel (4) and the screw (2); The top of the oil filling seat (5) is provided with a first installation groove (6), a first bearing (61) is installed in the first installation groove (6), and the oil filling seat (5) and the friction plate (3) are rotatably connected via the first bearing (61); The outer circumference of the oil filling seat (5) is provided with a second mounting groove (62), a second bearing (63) is mounted in the second mounting groove (62), and the oil filling seat (5) is rotatably connected to the flywheel (4) via the second bearing (63); The oil filling seat (5) is provided with an oil filling channel (52), the oil filling channel (52) is connected to a plurality of oil filling branches (521), and the plurality of oil filling branches (521) are respectively connected to the first installation groove (6) and the second installation groove (62).

2. The oil injection structure for a screw press according to claim 1, characterized in that: An annular baffle (7) is provided at the top of the second installation groove (62); the baffle (7) is connected to the flywheel (4) via bolts; and the baffle (7) seals the top opening of the second installation groove (62).

3. The oil injection structure of a screw press according to claim 2, characterized in that: The flywheel (4) is provided with an annular oil collecting groove (8) at the outer edge corresponding to the baffle (7), and the inner diameter of the oil collecting groove (8) is larger than the outer diameter of the baffle (7); the oil collecting groove (8) is connected to an oil guide pipe (81), and the oil guide pipe (81) extends downward to the bottom of the flywheel (4).

4. The oil injection structure for a screw press according to claim 2, characterized in that: A gap (71) communicating with the second mounting groove (62) is provided at the position where the second bearing (63) is connected to the baffle (7) and the flywheel (4).

5. The oil injection structure for a screw press according to claim 1, characterized in that: The frame (1) is provided with a third mounting groove (64), a third bearing (65) is installed in the third mounting groove (64), the bottom of the flywheel (4) is rotatably connected to the frame (1) via the third bearing (65); the second mounting groove (62) is connected to the third mounting groove (64).

6. The oil injection structure for a screw press according to claim 5, characterized in that: The frame (1) is provided with a recovery groove (9), the recovery groove (9) is connected to the third installation groove (64), the recovery groove (9) is connected to a collection pipe (91), and the collection pipe (91) is connected to one side of the frame (1).

7. The oil injection structure for a screw press according to claim 1, characterized in that: A copper sleeve (51) is arranged inside the oil filling seat (5), and the copper sleeve (51) is sleeved on the outside of the screw rod (2).

8. The oil injection structure for a screw press according to claim 1, characterized in that: A plurality of the second bearings (63) are provided, and the plurality of second bearings (63) are arranged vertically. An annular limiting ring (631) is provided between every two second bearings (63), and the limiting ring (631) can limit the distance between two adjacent second bearings (63).

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